EP3224048B1 - Turning device in a sheet-processing machine comprising a sheet-guiding drum, and method for adjusting the format of a sheet-guiding drum - Google Patents

Turning device in a sheet-processing machine comprising a sheet-guiding drum, and method for adjusting the format of a sheet-guiding drum Download PDF

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Publication number
EP3224048B1
EP3224048B1 EP16717920.9A EP16717920A EP3224048B1 EP 3224048 B1 EP3224048 B1 EP 3224048B1 EP 16717920 A EP16717920 A EP 16717920A EP 3224048 B1 EP3224048 B1 EP 3224048B1
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EP
European Patent Office
Prior art keywords
sheet
segment
drum
gripper
bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16717920.9A
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German (de)
French (fr)
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EP3224048A1 (en
Inventor
Frank Schumann
Michael Koch
Christian Ziegenbalg
Uwe Becker
Jörg Seefeld
Gunter Peter
Arndt Jentzsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
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Koenig and Bauer AG
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Publication date
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Publication of EP3224048A1 publication Critical patent/EP3224048A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/12Revolving grippers, e.g. mounted on arms, frames or cylinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F21/00Devices for conveying sheets through printing apparatus or machines
    • B41F21/10Combinations of transfer drums and grippers
    • B41F21/106Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine
    • B41F21/108Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine with pneumatic means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/062Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00Registering, e.g. orientating, articles; Devices therefor

Definitions

  • the invention relates to a sheet-processing machine with a turning device with a sheet guiding drum and a method for format adjustment of a sheet guiding drum.
  • variable length sheet transfer drum for printing presses having two comb-like intermeshing sheet segments, one connected to a leading edge gripper system and the other connected to a trailing edge sucker system.
  • a disadvantage of this solution is that the length of the individual comb teeth is designed for the maximum format length, which means that format lengths that are smaller than half the maximum format length, can no longer be processed because the collapse is limited or Prongs protrude into the canal.
  • a transfer drum with means for detecting the Bogenvorder- and sheet trailing edges for printing machines is known in which the length of the individual comb teeth is designed to the minimum format length, with the processing of the maximum format length extendable or hinged bridging members are required.
  • the disadvantage of this solution is on the one hand, that the achievement of the required accuracy of the lateral surface (cylindrical shape) is quite complex to produce (joints, guides) and on the other hand, that for folding / pushing either additional drive means are required or can easily play large games or spring forces occur which can disturb the format adjustment and the printing process.
  • the DE 10 2007 061 399 A1 discloses a sheet guiding drum with a channel bridge spanning a gripper channel.
  • the invention is therefore based on the object to further improve the bowing of format adjustable bow guide drums in sheet-processing machines.
  • the invention has the advantage that the sheet guide is further improved on format-adjustable sheet guiding drums in sheet-processing machines.
  • a sheet guiding drum which carries at least one gripper system.
  • an arcuate substrate in particular a sheet
  • the sheet guiding drum may be single, double or multi-sized, with a single-sized drum having exactly one gripper system can or can lead exactly a maximum sized sheet circumferentially.
  • Double or multi-size drums have two or more gripper systems in number, or can hold two or more sheets circumferentially.
  • a sheet guiding drum is provided with at least one middle casing segment, which is preferably arranged axially over the drum width between sheet supporting surfaces of further casing segments.
  • the middle shell segment is preferably mounted coaxially to the drum and / or movable in or counter to the circumferential direction of the drum.
  • the middle shell segment may have a plurality of spaced sheet support surfaces.
  • each sheet support surface may be mounted individually, for example on the drum axis, or a plurality of sheet support surfaces may be assigned to a common receptacle, for example a traverse, which is preferably mounted or guided coaxially with the sheet guide drum.
  • the sheet support surfaces of the middle shell segment can be mounted individually, in groups or together in particular on bearing disks on the drum body.
  • the bow bearing surfaces of the middle shell segment form with bow support surfaces of segment tines or with other wings of the other shell segments the periphery of the sheet guiding drum.
  • an at least partially cylindrical or drum-shaped lateral surface is formed by the at least three cooperating mutually adjustable jacket segments.
  • the segment tines or arch support surfaces of the cooperating shell segments engage in format adjustment or format adjustment in the circumferential direction into each other, wherein in the minimum format, preferably all segment tines of the shell segments and the arch support surfaces of the middle shell segment are adjacent.
  • the sheet support surface further includes gripper catches of a gripper system or suction systems for sheet trailing edges, for example rotary suckers in the circumferential direction.
  • the meshing areas of a sheet carrying surface are formed by sliding along sheet supporting surfaces in the circumferential direction of the sheet guiding drum.
  • the front shell segment preferably has segment tines or consists of segment tines, which each have an arch support surface and side surfaces in the axial direction.
  • a rear shell segment preferably also has segment tines or consists of segment tines, which each have an arch support surface and side surfaces in the axial direction.
  • An arranged in the circumferential direction between the front shell segment and the rear shell segment middle shell segment preferably also has bow support surfaces, which each have side surfaces in the axial direction.
  • the side surfaces of the front segment tines slide in the circumferential direction on the side surfaces of the arch support surfaces of the middle shell segment and / or the side surfaces of the arch support surfaces of the middle shell segment on the side surfaces of the segment tines of the rear shell segment.
  • the area that can be formed by sliding along side surfaces of the shell segments is the meshing area of a sheet supporting surface of the sheet guiding drum.
  • the side surfaces of the arch support surface of the middle shell segment or the segment prongs preferably slide at a minimum distance from each other or preferably have a technologically-related minimum distance in the axial direction.
  • the drive of the middle shell segment can be done via a separate drive, for example, single drive.
  • the drive of the middle shell segment is derived from adjustable elements of the sheet guiding drum.
  • the drive of the middle jacket segment is preferably derived from the format-adjustable jacket segment, in particular from its suction systems, preferably from stretchable suckers, ie, no additional drive is required.
  • the drive is thus preferably carried out a common adjustment of the format adjustable shell segment and the middle shell segment.
  • the traverse is forcibly adjusted with the drive of the format adjustable rear shell segment, in particular the format adjustable suction systems, preferably of rotary suckers.
  • the drive of the traverse can be done via a transmission gear.
  • the transmission gear can be performed, for example, as a standard gear or as planetary gear.
  • the middle jacket segment is moved along with the format adjustment movement of the format-adjustable jacket segment.
  • the traverse moves, for example, with a fraction of the adjustment angle of the other shell segment.
  • stop elements can be provided in particular in the minimum format and / or maximum format for the movable elements.
  • a sheet guiding drum in particular a storage drum, which has the at least one centrally mounted middle casing segment, in particular a plurality of arch support surfaces having bridging members, and a defined format adjustment without additional drive.
  • Such centric storage of the middle shell segment is easy to produce and therefore advantageous. Further advantageous an accurate and smooth storage for the middle shell segment is created. Further advantageous is the defined positive movement of the middle shell segment, which further increases machine safety.
  • middle shell segments and the other shell segments may be provided in accordance with multiple.
  • the shroud segments for the leading and trailing edge are made shorter by approximately the length of the central shroud segment, in particular around the circumferential extent of the sheet carrier surfaces or the circumferential extent of the bridging members, than required for the maximum sheet format.
  • the created enlarged functional area can be used for pneumatic elements and / or for mechanical elements.
  • the functional area for the arrangement of pneumatic active elements on the circumference of the sheet guiding drum, in particular the storage drum, without restrictions of the maximum and minimum format length is considerably increased.
  • This significantly enlarged functional area is particularly advantageous for the arrangement of pneumatic active elements on the circumference of a storage drum or for mechanical elements. It can thus be provided over the format width uninterrupted functional area.
  • the sheet guiding drum is designed as a storage drum and more preferably used in a three-drum turning device, for example a sheet-fed press.
  • a release device (Leitrakel) be assigned, which leads the sheet on another track and extends the storage capacity. If such a storage drum does not have grooves into which the squeegee can dip, the sheet leading edge can be dug out by a certain amount so that the sheet is securely guided onto the squeegee device.
  • a detail of a sheet-processing machine for example a sheet-fed printing machine, in particular a sheet-fed offset rotary printing press, preferably in aggregate and series construction with a turning device.
  • the machine contains at least two successively arranged works, which can be designed, for example, as investment, printing, lacquer, dry or finishing plants.
  • the machine may include a feeder for sheet feeding and a delivery for discharging the processed sheets.
  • the turning device is arranged, wherein the turning device has at least one sheet guiding system with which at least one of the sheets can be turned.
  • the turning device a respective of transported in a sequence arc turned.
  • the turning device is arranged here between a cylinder, for example a printing cylinder 4 of an upstream work, in particular printing unit, and a further cylinder, for example a printing cylinder 4 and a downstream work, in particular printing unit, the machine.
  • the impression cylinder 4 have full-surface lateral surfaces and are here with rubber cylinders 5 and this further with plate cylinders in the printing units in operative connection.
  • known color or inking and dampening units are arranged, which apply the appropriate ink to a tensioned on the respective plate cylinder printing plate.
  • a plate cylinder is colored by at least one but preferably several rollers of the associated inking or inking and dampening unit during its rotation.
  • the ink When unrolling the plate cylinder on the blanket cylinder 5, the ink is motive transferred to the covered with a rubber blanket cylinder 5. Between the blanket cylinder 5 and the impression cylinder 4, a printing zone is formed, through which the sheet to be printed is conveyed by the printing cylinder 4. In the printing zone or in the printing nip, the ink is transferred from the blanket cylinder 5 motive to the sheet.
  • the blanket cylinder 5 and plate cylinder can be made, for example, a simple size. Alternatively or additionally, a turning device can be arranged between other plants in the machine.
  • the machine includes sheet conveying systems, in particular sheet guiding cylinders and / or sheet guiding drums, for transporting the sheets through the works.
  • sheet conveying systems in particular sheet guiding cylinders and / or sheet guiding drums, for transporting the sheets through the works.
  • the works such as printing units, and in the turning device in particular sheet guiding cylinder and sheet guiding drums are arranged, which preferably have gripper systems 6 for fixing the sheet for the sheet transport.
  • the gripper systems 6 are designed here as a clamping gripper for clamping the sheet leading edge.
  • the printing cylinders 4 can be double-sized and transport the sheets to be printed during their rotation through the printing zone or the printing unit.
  • the sheets are clamped at the front edge by means of gripper systems 6 and thus fixed. Between two printing cylinders 4, the sheets can be transported and handed over by at least one sheet conveying system.
  • a sheet guiding drum or a plurality of sheet guiding drums or cylinders can be arranged between the printing cylinders 4.
  • the sheet guiding drums or cylinders can be made single or multi-sized his.
  • the sheet guiding cylinder or cylinders can have a complete lateral surface or at least lateral surface segments on which the sheets are laid.
  • Bow guide drums can also have a lateral surface or at least lateral surface segments, which can also be associated with the drum so that they can move.
  • the bow guide drums can also be associated with caps, which can be designed, for example, movable and / or removable.
  • sheet guiding drums can also be designed as so-called transferters without lateral surface segments.
  • the sheets are transferred at the front edge in the gripper closure.
  • the sheet conveying systems can be assigned additional sheet guiding elements, such as sheet baffles, for bowing.
  • the sheet guiding drums or cylinders are rotatably driven in one embodiment by a gear transmission of a continuous gear train.
  • the continuous gear train can be driven by a single main drive or by several individual coupled at different locations motors.
  • a single-drive drive may preferably be associated with a plate cylinder, which drives the plate cylinder individually in the continuous printing mode and / or independently of the gear train of the machine.
  • the single drive for the plate cylinder can be designed in particular as a direct drive with, for example, concentric with the cylinder axis arranged directly connected rotor.
  • the driven cylinders or drums shown here rotate in the direction indicated by the arrows.
  • the turning device is particularly preferably designed as a three-drum application and contains three sheet guiding drums for transporting sheets.
  • the Turning device includes, for example, a transfer drum 1, a storage drum 2 and a turning drum 3.
  • the transfer drum 1 is the storage drum 2 immediately upstream and the turning drum 3 is the storage drum 2 immediately downstream.
  • the machine is preferably carried out between a mode Schöndruck and a mode perfecting convertible.
  • perfecting mode the sheets can be transferred without turning between the sheet guiding cylinders and sheet guiding drums.
  • the sheets are turned by the turning device, so that the sheet back can be processed, in particular printed, in the following printing unit.
  • the turning device can be assigned not shown intermediate dryer and / or measuring systems.
  • Both the transfer drum 1 and the storage drum 2 are made double size here.
  • the double-sized drums each have two gripper systems 6 located diametrically opposite one another in gripper channels for transporting the sheets to the front edge.
  • the respective gripper channels extend over the drum width and have an opening in the lateral surface.
  • a gripper system 6 arranged in a gripper channel preferably contains a gripper shaft extending over the drum width, at which gripper fingers spaced from one another are fixedly arranged. The gripper fingers form during a pivoting movement of the gripper shaft a nip with individual gripper hooks or a continuous gripper bar.
  • the transfer drum 1 can also be made simple in size. In a further alternative embodiment, however, the drums can also be made several times large.
  • the turning drum 3 is here simply made large and contains gripper for taking over a sheet of the storage drum 2 at the front edge in straight printing and the trailing edge in perfecting.
  • the grippers of the turning drum 3 may include pivotable grippers and / or suckers or a gripper gripper system.
  • the sheet transfer from the storage drum 2 to the turning drum 3 takes place in a Transfer center.
  • the transfer center formed between the two drums is an imaginary line in which a sheet held by the storage drum 2 is taken over by the gripper or grippers of the turning drum 3.
  • the acquisition of the sheet is in register while the sheet is briefly held by two drums.
  • the turning drum 3 can also be embodied as double-sized or multiple-sized, with a single-size drum or a single-size cylinder generally being able to accommodate a maximum format sheet on the circumference.
  • a single-size drum or a single-size cylinder generally being able to accommodate a maximum format sheet on the circumference.
  • other drum or cylinder sizes and / or a different number of drums or cylinders in the works, such as printing units, and the turning device can be used.
  • Double-sized or multi-sized drums or cylinders can simultaneously accommodate two or more maximum-size sheets at the same time.
  • the turning device in the operating mode perfecting the sheet to be turned with its leading edge leading out on the storage drum 2.
  • the sheet is passed by the storage drum 2 at the transfer centers and detected by the beater 3 at the trailing edge.
  • the trailing edge of the sheet lying on the storage drum 2 is taken over by the gripper, in particular by a gripper gripper or by grippers and / or suckers, which are mounted pivotably in the rotating turning drum 3.
  • the detected sheet is then turned during the rotation progress of the turning drum 3 on the principle of trailing edge application, so that its old trailing edge from its reversal to the new front edge and lying on the storage drum 2 old leading edge to the new trailing edge.
  • the Fig. 2 shows a double-sized storage drum 2 fragmentary in perspective view.
  • the storage drum 2 is rotatably supported on both sides via a storage drum leg 7 in side frames of the machine.
  • Shown is a gripper system 6 arranged in one of the gripper channels.
  • the gripper system 6 here contains a mounted in bearing blocks gripper shaft, which are permanently assigned over the drum width, the gripper fingers.
  • the gripper shaft is driven by at least one roller lever via a cam roller and cam not shown.
  • the gripper system 6 is arranged on a front shell segment, which carries the front portion of a gripped by the gripper system 6 sheet.
  • the front shell segment is preferably fixedly connected to the storage drum leg 7.
  • the front shell segment is referred to here as a gripper shell segment 8.
  • a rear shell segment In the circumferential direction of the storage drum 2 spaced from the front shell segment, a rear shell segment is provided which carries the rear portion of a gripped by the gripper system 6 bow.
  • the rear shell segment is designed to be displaceable in the circumferential direction of the storage drum 2 relative to the storage drum leg 7 so that sheets of different format can be carried by both the front shell segment and the rear shell segment.
  • the rear shroud segment is preferably configured in such a format-adjustable manner that segment tines of the shroud segments mesh with one another like a comb during format adjustment and thereby form a curved outer surface.
  • the two diametrically opposite rear shell segments of the double-sized storage drum 2 are preferably moved together for format adjustment relative to the fixed front shell segments. In this case, a common drive or synchronized drives can be used.
  • each further suction systems, in particular rotary suckers 17, are provided for the acquisition and management of the sheet trailing edges.
  • the rotary vacuum cleaner 17 Through the rotary vacuum cleaner 17, the sheets during the sheet transport of the transfer drum 1 to the beater 3 lying on the storage drum 2 and / or in the perfecting after the transfer centers longitudinally and / or transversely tightened become.
  • the suction air supply to the rotary suckers 17 is preferably reduced and particularly preferably interrupted in perfecting pressure, so that the grippers of the turning drum 3 can take over the sheet trailing edge and in particular detach from the storage drum 2.
  • the rear shell segment is referred to here as the sucker shell segment 9.
  • the circumferential extension of a front shell segment and the corresponding rear shell segment is preferably dimensioned such that they together have a smaller dimension compared to the maximum arc length.
  • An arc of maximum format thus surmounted the front and rear shell segment including segment tines in total in the circumferential direction.
  • the storage drum 2 contains at least one middle shell segment, which is arranged in the circumferential direction between the front shell segment and the rear shell segment.
  • the storage drum 2 contains exactly two middle shell segments here, which interact in each case with the further shell segments of the two shell halves.
  • the storage drum 2 contains here over the drum width a plurality of the central shell segment-forming arch support surfaces having bridging members 10 which are at least temporarily positionable between a front shell segment and the corresponding rear shell segment.
  • the bridging members 10 are arranged in the circumferential direction between the front shell segment and the corresponding rear shell segment.
  • the Bogentragsegmente for leading and trailing edge are executed here in the circumferential direction about the circumferential extent of the bridging members 10 shortened.
  • the bridging members 10 are arranged here uniformly spaced from one another and have a narrow extent axially to the storage drum 2.
  • the middle shell segment, in particular the bridging members 10 in the region of its arch support surfaces no mechanical connection to the segment tines of the gripper shell segment 8 and / or the nipple shell segment 9.
  • the arch support surfaces of the middle jacket segment, in particular the bridging members 10, are preferably arranged directly adjacent to segment tines of the gripper jacket segment 8 and / or directly adjacent to segment tines of the teat jacket segment 9.
  • the bridging members 10 are completely formed so as to be arrangeable both between the segment tines of the gripper jacket segment 8 and the segment tines of the teat jacket segment 9.
  • the bridging members 10 are further formed so as to form an arch support surface together with the gripper shell segment 8 and the sucker shell segment 9 for each sheet format.
  • the teat-jacket segment 9 is preferably always positioned in such a way to the sheet trailing edge, so that in particular with the rotary suckers 17 of the nipple shell segment 9, regardless of the sheet format, the sheet trailing edge is fixed.
  • the bridging members 10 are preferably arranged axially between the segment prongs of the gripper jacket segment 8 and the sucker jacket segment 9 such that each bridging member 10 is assigned a segment prong of the gripper jacket segment 8 and a segment prong of the sucker jacket segment 9. Particularly preferred is each bridging member 10 in the longitudinal direction on one side exactly one segment of the gripper tine gripper segment 8 and on the opposite side exactly one segment of the nipple-sheath segment 9 immediately adjacent.
  • the bridging members 10 are formed such that in the position of the maximum sheet size an overlap of segment tines of the gripper sheath segment 8, of segment tines of the sucker shell segment 9 and the bridging members 10 is provided in the circumferential direction.
  • the bridging members 10 may be mounted individually, in groups or together on the drum axis of the storage drum 2.
  • the bridging members 10 are assigned together to a traverse 11, in particular a profiled middle traverse 11.
  • This traverse 11 is preferably designed such that it takes place at set minimum format between the gripper shell segment 8 and the sucker shell segment 9 space.
  • the segment tines of gripper shell segment 8 and / or sucker shell segment 9 project beyond the traverse 11 when setting the minimum format.
  • individually or groupwise mounted bridging members 10 these can also be moved and / or driven individually or in groups.
  • a common drive of the bridging members 10 via the common cross member 11 which extends over the drum width Traverse 11 is mounted movably in the circumferential direction of the storage drum 2.
  • the traverse 11 is connected in the lateral drum area with bearing discs, which are mounted on the drum body of the storage drum 2.
  • the storage of the bearing discs can be adjacent to the storage of the adjustable shell segment, for example, inside next to the bearings of the nipple shell segment, 9 done.
  • the bearing discs are particularly preferably mounted coaxially to the axis of rotation of the storage drum 2, so that the sheet support surfaces of the bridging members 10 are aligned in each position exactly cylindrical or drum-shaped.
  • the Fig. 3 shows the drive of the bridging members 10 of the storage drum 2 in particular for format adjustment.
  • the drive of the bridging members 10 supporting cross member 11 can be done via a transmission gear.
  • a transmission gear For example can be moved with the movement of the sucker shell segment 9 relative to the gripper shell segment 8, a toothed segment 13 as a drive.
  • This sector gear 13 may be fixedly assigned to the sucker shell segment 9.
  • the toothed segment 13 moved with the nipple jacket segment 9 can continue to engage in a stepped pinion, for example a toothed wheel 14 and a toothed wheel 15, which then moves the traverse 11 at a fraction of the adjusting angle of the teat-shell segment 9, for example approximately half.
  • the gear 14 engages in the toothed segment 13 and the gear 15 in particular firmly connected gear 15 in a toothed segment 16.
  • the gear pair 14/15 transmits the introduced from the toothed segment 13 of the sucker shell segment 9 movement in the preselected gear ratio unequal to one to the toothed segment 16, which in turn is fixedly connected to the bridging members 10 carrying crossmember 11.
  • a drive can be provided on both sides of the storage drum 2.
  • the drive could alternatively be designed as a planetary gear.
  • the drive can also be derived directly from the drive of the movable shell segment, here the sucker shell segment 9, or be assigned to the drive the middle shell segment and continue the movement of the format adjustable shell segment, for example, the sucker shell segment 9, transferred.
  • the gripper sheath segment 8, including the segment tines, can extend from the gripper system 6 in the circumferential direction of the storage drum 2 over a radius or angle of rotation of approximately 40 °.
  • the cuffs of the gripper system 6 also form the sheet support surface, but may be arranged adjacent to the gripper casing segment 8 in the gripper channel.
  • the impacts of the gripper system 6 may be assigned to the gripper shell segment 8 or connected to this.
  • the bridging members 10 may extend, for example, from the leading edge thereof to the trailing edge over a peripheral region or radius of approximately 32 °.
  • the segment tines of the teat-jacket segment 9 can be up to the teat system, particular rotary suckers 17, for example, extend over a peripheral region or radius of about 40 °.
  • the nipple system, in particular the rotary suckers 17, likewise form the sheet support surface, but are also preferably located in the gripper channel arranged adjacent to the nipple cover segment 9.
  • the nipple system, in particular the rotary suckers 17, are in this case permanently assigned to the nipple jacket segment 9.
  • an overlap of the bridging members 10 in the circumferential direction with the segment prongs of the gripper sheath segment 8 and / or the sucker sheath segment 9 could also be present.
  • the bridging members 10 are preferably located completely between the segment prongs of the gripper jacket segment 8 and the sucker jacket segment 9.
  • the extended functional surface 12 may be assigned to the gripper sheath segment 8 or the sucker sheath segment 9 or split on the gripper sheath segment 8 and the sucker sheath segment 9.
  • This enlarged functional surface 12 can be used, for example, for a mechanical sheet ejector on the gripper casing segment 8 and / or for pneumatic elements on the gripper casing segment 8 and / or vacuum casing segments 9.
  • the functional surface 12 created in the non-combing sheet support region of the storage drum 2 is part of the sheet support surface.
  • the created functional surface 12 of the storage drum 2 is here associated with the sucker shell segment 9 and may, for example, have a circumferential extent of about 25 °.
  • the functional surface 12 extends here over the drum width and has an extension in the circumferential direction of the storage drum 2.
  • the circumferential extent of the functional surface 12 is here preferably completely between the segment tines of the nipple-shell segment 9 and whose rotary suckers 17 are provided.
  • the other shell half or the opposite sheet support surface of the double-sized storage drum 2 is preferably designed identical or is the first shell half or the first sheet support surface diametrically opposite.
  • the other sheet support surface also includes the cuffs of the grippers, the arch support surfaces of the segment tines of the front and rear shell segment and the arch support surfaces of the middle shell segment, if necessary, including suction systems.
  • the Fig. 4 shows a turning device with a sheet guiding element in a gripper channel having storage drum 2.
  • the turning device is part of a sheet-processing machine, such as a sheet-fed press, in particular a Bogenoffsetrotationstikmaschine preferably in aggregate and series construction, for example as described above.
  • the turning device is designed here as a three-drum turn with a double-sized transfer drum 1, the double-sized storage drum 2 and a single-size turning drum 3, for example.
  • the transfer drum 1 has curved outer surfaces and is here downstream of a pressure cylinder 4 of an upstream printing unit. Below the transfer drum 1 sheet guiding elements are arranged for sheet guiding.
  • the sheet guiding elements are preferably designed as sheet guide plates and have further forming pneumatic guide means.
  • blowing nozzles are arranged in the guide surface of the sheet guide plates, which can be acted upon with blown air or suction air.
  • an air cushion is formed by the sheet guide plates for sheet guiding, by which the sheets are held on the lateral surface of the transfer drum 1.
  • the storage drum 2 is rotatably supported on both sides in side frames of the machine and contains two gripper systems 6 arranged diametrically in gripper channels.
  • Each gripper system 6 here contains a mounted in bearing blocks gripper shaft, which are permanently assigned over the drum width, the gripper fingers.
  • the gripper shaft is driven by at least one roller lever via a cam roller and cam not shown.
  • the gripper systems 6 are arranged on front fixed shell segments, which carry the front portion of a clamped by a gripper system 6 arc.
  • rear shroud segments are provided which carry the rear portion of a clamped by a gripper system 6 bow.
  • the rear shell segments are designed to be displaceable or adjustable in the circumferential direction of the storage drum 2, so that sheets of different format can be carried by both the front shell segments and by the directly corresponding rear shell segments.
  • the shroud segments are preferably designed to be adjustable in size such that segment tines of the shroud segments mesh with one another like a comb during format adjustment and thereby form a curved outer surface.
  • the two diametrically opposite rear shell segments of the double-sized storage drum 2 are preferably moved together for format adjustment relative to the fixed front shell segments.
  • a common drive or synchronized drives can be used.
  • the storage drum 2 could also have guide strips and / or gripper recesses on the lateral surface or else further, for example, central, movable shell segments.
  • adjustable rear shroud segments are preferably each suction systems, in particular rotary suckers 17, provided for taking over and guiding the sheet trailing edges.
  • rotary suckers 17 Through the rotary suckers 17, the sheets during sheet transport from the transfer drum 1 to the beater 3 lying on the storage drum 2 and / or in perfecting after the transfer centers along and / or transversely tightened.
  • the storage drum 2 may comprise further pneumatically acting elements.
  • Such further pneumatic elements may for example be integrated in the sheet carrier surface and / or in the gripper channels of the storage drum 2.
  • the front and / or rear shell segments and / or the segment tines can be provided with pneumatic elements, in particular suction openings and / or grooves.
  • the Fig. 5 shows a movable guide of a guide sheet guiding element in a gripper channel of a sheet guiding drum, which is designed here for example as a storage drum 2.
  • the sheet guiding elements can be arranged in each of the two gripper channels.
  • the sheet guiding elements can be arranged in one or more parts in a respective gripper channel.
  • a sheet guiding element can extend only partially or over the entire drum width in the gripper channel. It can also be assigned to the channel walls, for example, to protect the gripper system 6 and / or the rotary vacuum 17 and sub-elements of the sheet guiding element.
  • the sheet guiding element extends in the circumferential direction of the rotary suckers 17 to the gripper system 6 in the same gripper channel.
  • the sheet guiding element is in particular cyclically movable by the guide gear. It is preferably realized a movement of the sheet guiding element in the radial direction within the gripper channel and / or from the storage drum periphery 2.1 out. It can additionally be realized a pivoting movement of the sheet guiding element.
  • the guide gear is designed as a multi-link gear, particularly preferably as a coupling gear and here in particular as a four-bar linkage 19.
  • the sheet guiding element is designed as a deflector 18, which für flagend can also be performed pneumatically acted upon.
  • the deflector plate 18 can from the guide gear, here the four-bar linkage 19, at least between a parking position 18.1, in which the deflector 18 is located within the storage drum periphery 2.1, and a working position 18.2, in which the deflector 18 at least approximately in height of the storage drum periphery 2.1 lies, be moved.
  • the deflecting plate 18 can protrude from the storage drum periphery 2.1 at least with the edge trailing in the direction of rotation.
  • the trailing edge can be, for example, 1 to 20 mm, preferably 1 to 10 mm and particularly preferably about 5 mm above the storage drum periphery 2.1.
  • the leading edge of the Abweisbleches 18 is preferably at least approximately equal to the storage drum periphery 2.1.
  • the gripper system 6 in the gripper channel is preferably covered in both positions of the deflector 18 of this.
  • the deflection plate 18 is within the storage drum periphery 2.1 in the gripper channel, so that a gripping the sheet trailing edge, for example by means of a pliers gripper, by a turning drum 3 in the transfer center to the turning drum 3 is made possible.
  • the deflector plate 18 is preferably located completely within the storage drum periphery 2.1 in the gripper channel.
  • the deflector 18 is in parking position 18.1 at least approximately equidistant from the storage drum periphery 2.1. Alternatively, however, other positions can be taken in the gripper channel due to space constraints.
  • the four-bar linkage 19 contains in the gripper channel two with respect to the drum body fixed to the frame arranged swivel joints, on each of which a coupling is rotatably mounted. Both couplers are rotatably connected at their free ends with a common coupling member.
  • the common coupling member carries on the radially to the storage drum periphery 2.1 side facing the deflector 18.
  • the deflector 18 is preferably assigned to the coupling member fixed. By way of a drive, the coupling member can be driven if necessary, so that the deflector plate 18 is moved radially to the storage drum 2.
  • the storage drum periphery 2.1 facing coupling is mounted here in a pivot point 19.1 and extended beyond this pivot point 19.1 addition.
  • a four-bar cam 19.2 is received rotatably.
  • the four-bar cam 19.2 cooperates with a four-bar cam 19.3.
  • the four-bar cam follower 19.2 be held in contact with the four-bar cam 19.3.
  • a movement of the four-bar cam follower 19.2 via the coupling to the coupling member for movement of the Abweisbleches 18 are transmitted.
  • the Fig. 6 shows a arranged in a gripper channel a sheet guiding drum pneumatically acted sheet guiding element.
  • the sheet guiding element has at least one opening which comes into contact with the sheet at least temporarily.
  • the sheet guiding element can be arranged in one or more parts in the gripper channel. In this case, a sheet guiding element can extend only partially or over the entire drum width in the gripper channel. It can also be assigned to the channel walls, for example, to protect the gripper system 6 and / or the rotary vacuum 17 and sub-elements of the sheet guiding element.
  • the sheet guide element can be arranged firmly in the gripper channel. Preferably, however, the sheet guiding element is movable, in particular cyclically movable, executed.
  • the bow guide element is preferably a guide gear, in particular a multi-link gear, preferably a coupling gear, for example, a four-bar linkage assigned.
  • the sheet guiding element is designed here in particular as arranged in a gripper channel of, for example, a double-sized storage drum 2 deflecting plate 18.
  • the deflector plate 18 can here a position within the storage drum periphery 2.1 arranged in the gripper channel position, for example, a parking position 18.1 occupy.
  • the deflection plate 18 has an at least approximately closed guide surface for the sheet in which pneumatic-acting openings, for example suction nozzles, are arranged.
  • the guide surface of the Abweisbleches 18 is preferably carried arched according to the storage drum periphery 2.1.
  • the deflector 18 extends over at least approximately the entire drum width.
  • the deflection plate 18 is designed in the circumferential direction of the storage drum 2 such that a gripper channel of a storage drum 2 set to a maximum format is at least approximately covered.
  • the deflection plate 18 preferably extends from the rotary suction cups 17 leading in the direction of rotation of the storage drum 2 directly to the trailing gripper system 6 in the gripper channel.
  • the rotary extractors 17 are further pneumatically acting elements of the storage drum 2, which are preferably formed depending on the angle of rotation activated.
  • the pneumatic openings of the Abweisbleches 18 and the other pneumatically acting elements, in particular the rotary suction 17, the storage drum 2 have a common pneumatic line.
  • the common pneumatic line can be rigid or flexible and is preferably at least approximately to the gripper channel of Storage drum 2 out.
  • the common pneumatic line communicates with at least one air generator, in this case a suction air generator.
  • the other shell half or sheet support surface of the double-sized storage drum 2 is preferably also a common pneumatic line for the further deflector plate 18 and the other pneumatic element, in particular the vorseilenden this forward rotary vacuum 17, assigned.
  • several different suction air generator for the different pneumatically active elements of the storage drum 2 may be provided. This allows the different elements different Saug Kunststoffieris be made available.
  • the storage drum 2 is a switching means for selectively controlling the pneumatic sheet guiding element, in particular the Abweisbleches 18, or the other pneumatic element, in particular the rotary vacuum 17, assigned.
  • the switching means may be arranged for example in a gripper channel.
  • the switching means is preferably designed as a control valve for air control, which is in operative connection with the common pneumatic line.
  • the control valve is a pivoting slide 23, which is moved by a drive lever of the four-bar linkage of the controlled Abweisbleches 18 and so releases the suction air of the Abweisbleches 18 before the deflector 18 has reached its working position 18.2.
  • the pivoting slide 23 has, for example, two working positions for supplying two pneumatic active elements, here next to the deflector 18, the rotary vacuum 17. Further education further pneumatic elements of the storage drum 2 of the common pneumatic line can be assigned and be supplied individually or in groups successively.
  • the common line for pneumatic supply of the various elements is arranged up to at least one, for example, centrally arranged suction air connection 20.
  • suction air connections 20 are preferably of identical design and / or arranged symmetrically to the drum width.
  • a suction air connection 20 is arranged adjacent to a suction air duct 21 of a suction system, for example the rotary vacuum cleaner 17, on the one hand and adjacent to a suction air duct 22 of the deflecting plate 18 on the other hand.
  • the suction air connection 20 and the suction air ducts 21, 22 for the suction system, in particular the rotary suckers 17, and the deflector plate 18 are accommodated here in a structural unit. This unit is in operative connection with the pivot slide 23.
  • the pivoting slide 23 has a channel piece 24 which is always in pneumatic communication with the suction air connection 20 here.
  • the pivoting slide 23 is pivotable between the at least two working positions.
  • the pivotal movement is preferably effected by pivoting about a pivot axis by a drive.
  • a suction air supply to the suction system here the rotary suckers 17, produced, at the same time a suction air supply of the deflector 18 is interrupted.
  • the deflector plate 18 has no pneumatic supply here in the parking position 18.1 located in the gripper channel. In this parking position 18.1, no suction air can act on the suction openings of the deflecting plate 18.
  • a pneumatic connection to the rotary suckers 17 is made in this first working position of the pivoting slide 23 via the channel piece 24.
  • a suction air supply to the deflector 18 is made, at the same time a Saugluftmakers the suction system, in particular the rotary vacuum 17, is interrupted.
  • Further switching elements may be arranged upstream of the common line, which influence the common intake air supply.
  • the Fig. 7 shows the preferred by the four-bar in the working position 18.2 Asked deflector 18, which is here in height of the storage drum periphery 2.1.
  • the pivoting slide 23 is preferably actuated here.
  • the pivoting slide 23 is arranged in a fixed relative to the drum body hinge of the four-bar linkage, for example in the above-described pivot point 19.1 of the four-bar mechanism 19.
  • the switching of the switching means takes place in particular during the rotation of the storage drum 2 in the perfecting mode when the sheet to be turned is already taken by the turning drum 3 and is subtracted from the storage drum 2 during the turning process.
  • a common pneumatic guidance of the sheet is achieved by the pneumatic elements of the storage drum 2 and the deflector 18 in the gripper channel.
  • the pneumatic guide takes place here first by suction and / or the stretchers, in particular the rotary vacuum 17, the storage drum 2.
  • the suction or rotary suction 17 can remain effective as long as a contact of the current sheet to be used with the suction elements or rotary suckers 17 , Before or as soon as by the turning progress contact of the sheet to the suction elements or rotary suckers 17 no longer exists, the suction elements or rotary suction 17 are switched pneumatically ineffective, so that they pull no false air. At the same time the deflector 18 is pneumatically effective, so that there is a further bowing through this.
  • the preferably pneumatically assisted bowing by the deflector 18 is preferably maintained until the sheet to be turned loses contact with it.
  • the guide of the bow is carried out by rotation angle-dependent connection of suction to the other element and subsequent rotation angle-dependent connection of the suction to the sheet guiding element, in particular the deflector 18 by the switching means, in particular the control valve and preferably the pivot slide 23.
  • the pneumatic effect can be reduced or canceled if no contact with the arc exists anymore.
  • a rotation angle-dependent shutdown is provided.
  • the Fig. 8 shows a turning device for a sheet-processing machine, for example, as described above, with an engageable on the sheet guiding drum, in particular storage drum 2, detaching device 25.
  • the sheet guiding drum, in particular storage drum 2 is a lifter system for lifting the sheet leading edge of the sheet support surface and for transferring them to the Removal device 25 assigned.
  • the turning device is part of a sheet-processing machine, for example a sheet-fed printing press, in particular a sheet-fed offset rotary printing press preferably in aggregate and series construction, for example as described above.
  • the turning device is designed here as a three-drum turn with a double-sized transfer drum 1, for example, as a double-sized storage drum 2 formed sheet guiding drum and a single-size turning drum 3.
  • the transfer drum 1 has curved outer surfaces and is here downstream of a pressure cylinder 4 of an upstream printing unit.
  • the storage drum 2 is additionally preferred but alternative to a sheet guiding element in the gripper channel, the removal device 25 for Storing an arc assigned during the turning process.
  • the detaching device 25 is formed, for example, as a Leitrakel and preferably has pneumatic elements for guiding the sheet on the surface.
  • the storage drum 2 is rotatably supported on both sides in side frames of the machine and contains two diametrically arranged in gripper channels gripper systems 6.
  • Each gripper system 6 here contains a stored in bearing blocks gripper shaft, which are permanently assigned to the gripper fingers on the drum width.
  • the gripper shaft is driven by at least one roller lever via a cam roller and cam not shown.
  • the gripper systems 6 are arranged on front fixed shell segments, which carry the front portion of a clamped by a gripper system 6 arc. In the circumferential direction of the storage drum 2 spaced from the front shell segments rear shroud segments are provided which carry the rear portion of a clamped by a gripper system 6 bow.
  • the rear shell segments are designed to be displaceable or adjustable in the circumferential direction of the storage drum 2, so that sheets of different format can be carried by both the front shell segments and by the directly corresponding rear shell segments.
  • the shroud segments are preferably designed to be adjustable in size such that segment tines of the shroud segments mesh with one another like a comb during format adjustment and thereby form a curved outer surface.
  • the two diametrically opposite rear shell segments of the double-sized storage drum 2 are preferably moved together for format adjustment relative to the fixed front shell segments. In this case, a common drive or synchronized drives can be used.
  • the storage drum 2 could also have guide strips and / or gripper recesses on the lateral surface or else further, for example, central, movable shell segments.
  • adjustable rear shroud segments are preferably each suction systems, in particular rotary suckers 17, provided for taking over and guiding the sheet trailing edges.
  • rotary suckers 17 Through the rotary suckers 17, the sheets during sheet transport from the transfer drum 1 to the beater 3 lying on the storage drum 2 and / or in perfecting after the transfer centers along and / or transversely tightened.
  • the suction air supply to the rotary suckers 17 is preferably reduced and particularly preferably interrupted in perfecting pressure, so that the grippers of the turning drum 3 can take over the sheet trailing edge and in particular detach from the storage drum 2.
  • the storage drum 2 may comprise further pneumatically acting elements.
  • Such further pneumatic elements may for example be integrated in the sheet carrier surface and / or in the gripper channels of the storage drum 2.
  • the front and / or rear shell segments and / or the segment tines can be provided with pneumatic elements, in particular suction openings and / or grooves.
  • the sheet guiding drum formed here for example, as a storage drum 2, contains, in addition to the gripper system 6, a further sheet holding device, which is associated with the gripper system 6 adjacent to the sheet support surface.
  • the further sheet holding device can be assigned to the fixed shell segments and / or have a separate holder.
  • the further sheet holding device is arranged in particular at the level of the periphery of the sheet guiding drum and, for example, indirectly or directly adjacent to the gripper system 6.
  • the further sheet holding device is arranged following the gripper system 6 in the direction of rotation of the sheet guiding drum.
  • the further sheet holding device contains suction openings and / or separately activatable holding areas.
  • the sheet holding device contains transversely and / or in the circumferential direction of the sheet guiding drum preferably independently controllable suction openings.
  • the further sheet holding device can thereby extend transversely, ie over the drum width or only over a partial region of the drum.
  • the further sheet holding device is provided at least in the lateral region of the sheet guiding drum, wherein a deactivation can be provided outside of the current sheet format.
  • the further sheet holding device is in particular separately controllable, wherein preferably a rotational angle-dependent control takes place.
  • a control of the further sheet holding device which is dependent on the gripper system 6, in particular on an opening movement of the gripper system 6, can take place.
  • these can be controlled in succession in the circumferential direction of the sheet guiding drum.
  • these holding areas can be activated together or one after the other and / or deactivated in succession as a function of the rotation progress of the sheet guiding drum.
  • the Fig. 9 shows another sheet holding device in the region of a gripper system 6 a sheet guide drum, in particular a storage drum 2.
  • the storage drum 2 includes the gripper system 6 adjacent associated auxiliary suction 26, for example 0.1 to 20 cm, preferably 0.5 to 10 cm, particularly preferably 1 up to 5 cm, spaced in the circumferential direction of the gripper cuffs here in the direction of a gripper jacket segment 8 are arranged.
  • the auxiliary suction cups 26 are here assigned to the storage drum 2 via the drum width to the lateral areas, that is to say to the areas facing the front sides.
  • the further sheet holding device is thus preferably located at least in the variable-format areas of the sheet guiding drum, here in particular the storage drum 2.
  • the storage drum 2 further preferably contains a release system associated with the respective gripper system 6, which releases the gripper system 6 from the gripper system 6 Arch leading edge lifts off from the sheet supporting surface and thereby leads in the rotation angle range of the detaching device 25 to this.
  • a release system associated with the respective gripper system 6, which releases the gripper system 6 from the gripper system 6 Arch leading edge lifts off from the sheet supporting surface and thereby leads in the rotation angle range of the detaching device 25 to this.
  • almost every gripper finger of the gripper system 6 is associated with a lifter 28 movable over the periphery of the storage drum 2.
  • the lifters 28 can be moved over the periphery in the radial direction and thus release the sheet leading edges from the sheet carrier surface.
  • the ejector 28 can be controlled separately or by the gripper system 6, in particular by the opening movement of the gripper system 6.
  • the further sheet holding device is preferably designed such that the dissolved from the Aushebern 28 with open gripper fingers of the sheet support surface sheet leading edge in the subsequent bow area can be fixed , Over a certain rotation angle range of the storage drum 2, the sheet leading edge is held only by the further sheet holding device, while the sheet leading edge is guided on the detaching device 25.
  • a respective sheet is clamped during the turning process in the turning device by one of the gripper systems 6 of the storage drum 2 at the front edge.
  • the sheet to be turned is guided with its front edge ahead on the storage drum 2.
  • the auxiliary suction 26 can fix the front bow area.
  • the sheet is guided to the top of the removal device 25.
  • the gripper system 6 Shortly before reaching the top of the ridge, the gripper system 6 performs an opening movement, so that the sheet leading edge is released by the gripper fingers. At the same time, the released sheet leading edge can be raised by the ejector 28, so that the sheet leading edge is lifted onto the removal device 25.
  • the sheet is largely kept on the storage drum 2, so that the free-flying area of the sheet leading edge is limited.
  • the free-flying length is determined in particular by the distance between the ejectors 28 and the respective activated auxiliary suckers 26.
  • a start of the defined guided Sheet leading edge to the removal device 25 is thereby simplified.
  • Pneumatic guide elements are preferably associated with the detaching device 25, which guide the sheet leading edge as soon as it is in the effective range of the detaching device 25.
  • the sheet leading edge is guided on the detaching device 25 by an aerodynamic paradox or with suction.
  • the sheet can be released by the further sheet holding device as soon as it is at least partially guided by the detaching device 25.
  • the holding action of the further sheet holding device can be designed to be bend-format-dependent, grammatical-dependent, speed-dependent and / or adjustable according to sensor values.
  • An adjacent suction effect can be made adjustable.
  • different holding areas can be adjusted independently of each other.
  • an activation or deactivation in succession and / or a different intensity of the holding effects is possible.
  • an arc located at least partially on the removal device 25 can be successively released in regions in the circumferential direction by the sheet holding device. The formation of a decreasing suction in the circumferential direction is thus feasible.
  • the front portion of the sheet is still held by the auxiliary suction cups 26 on the sheet support surface of the storage drum 2 and thus guided defined.
  • the sheet can thus be taken over by the detaching device 25 directly from the storage drum 2, without the bow having to jump from a greater distance.
  • the holding action of the further sheet holding device or the suction effect of the auxiliary suction 26 acts until the removal device 25 has taken over the secure guidance of the sheet.
  • the largely guided by the storage drum 2 to the removal device 25 sheet is detected by the turning drum 3 at the trailing edge.
  • the lying still on the storage drum 2 trailing edge of the sheet from the gripper, in particular by a forceps gripper or grippers and / or suckers, which are pivotally mounted in the rotating beater 3, taken over.
  • the detected sheet is then turned during the rotation progress of the turning drum 3 on the principle of trailing edge application, so that its old trailing edge from its reversal to the new leading edge and lying on the stripper 25 old leading edge to the new trailing edge.
  • the withdrawing sheet can be detached from the detaching device 25 by a detaching element 27 associated with the detaching device 25.
  • the release element 27 can be designed as a curved finger or as a suction roll. By one or more release elements 27, the sheet can be moved out of the path of the following sheet.
  • the or the detachment elements 27 are clocked from the detaching device 25 and moved back again.
  • the sheet guide from the storage drum 2 and the removal device 25 to the turning drum 3 can be supported by additional pneumatic sheet guiding.
  • the further sheet holding device can also be embodied as an electrostatic and / or magnetic sheet holding device.
  • the detaching device 25 can also be designed with an existing detachment element 27 in a modular design. This allows a common adjustment of the detaching device 25 relative to the sheet guiding drum. In particular, a lateral displacement of the detaching device 25 can take place through an opening of the machine side wall. Such a shift can be used for maintenance. Also, a removal or insertion of a removal device 25 can be done through the opening of the machine side wall. With particular preference, all connections, in particular the pneumatic connections, are automatically coupled or decoupled from the detaching device 25. In particular, the functional elements of the detaching device 25 are functionally combined in the structural unit and integrated as a doctor blade module.
  • the doctor module is mounted in the machine frame, as a unit completely on guides axially slidably and preferably in the direction of the operating side from a working position into a maintenance position out of the machine movable. May be provided attacks, holding device and / or control devices for a secure position of the doctor module in the working position and / or a locking devices for machine locking when leaving this working position towards a maintenance position. It can be provided a movable support for the sheet holding elements or a structural unit for further sheet holding elements, which is mounted on guides in the doctor module and parallel to the sheet travel direction displaceable for common adjustment of the sheet contact elements to a current arc length.
  • Such a movable carrier may be provided with drives, a controller and / or an air supply for sheet holding elements.
  • the assembly for further sheet holding elements can also be mounted on guides on the movable support and preferably in the direction of the operating side from a working position into a maintenance position from the movable support or from the doctor module to be movable and optionally removable. May be provided attacks, holding device and / or control devices for a secure position of the assembly for the other sheet contact elements in the working position and / or a machine lock when leaving the working position in the direction of the maintenance position.
  • a Leitrakel in Rakelmodul can be mounted pivotably about a fixed pivot point. Even for a secure position of the Leitrakel in working position stops and / or control devices can be provided. In this case, the Leitrakel is preferably pivotable in a maintenance position with a machine safety.
  • the Fig. 10 shows in one embodiment a perspective view of a single-size beater 3 of a turning device with a forceps gripper 29.
  • the turning device is part of a sheet-processing machine, such as a sheet-fed press, in particular a sheet-fed rotary printing machine preferably in aggregate and series construction, for example as described above.
  • the turning drum 3 is preferably downstream of a storage drum 2, which a Immersion of at least a portion of the forceps gripper system 29 in the periphery allows for gripping the trailing edge of the sheet in the reversing mode.
  • the storage drum 2 can have format-adjustable sheath segments and / or circumferential guide strips therefor.
  • the turning drum 3 is rotatably mounted about an axis of rotation in the side frames of the machine.
  • the forceps gripper system 29 has a drive for gripping and / or pivoting.
  • the drive of the forceps gripper system 29 can be switched between the operating mode Perfecting and the operating mode perfecting.
  • the drive of the forceps gripper system 29 is here preferably realized on both sides via cam rollers.
  • the forceps gripper system 29 performs a gripping movement for taking over a sheet leading edge in the transfer center with the upstream storage drum 2 and for transfer to the downstream sheet transport system, such as a printing cylinder 4, from.
  • the forceps gripper system 29 performs in addition to the gripping movement a pivoting movement during the rotation progress of the turning drum 3 to pass in the transfer center with the upstream storage drum 2 trailing edge as a new leading edge of the downstream sheet transport system, such as a pressure cylinder 4 ,
  • the turning drum 3 can be adjusted for the perfecting format setting together with the arranged after the turning device works so that the gripper gripper system 29 can take the sheet trailing edge of the current sheet format.
  • the turning drum 3 has an arch support surface which has at least the width of the largest sheet format to be processed.
  • the turning drum 3 may also have a cap forming a lateral surface, which is designed to be fixed or replaceable.
  • a full-area cap is used in the recto printing mode.
  • perfecting the cap can be removed and / or a beater shell surface with recesses, such caverns and / or channels, for the transport of ambient air in the having a negative pressure area between the turning drum 3 and storage drum 2 and the respective sheet to be turned to be provided.
  • the gripper gripping system 29 of the turning drum 3 has a gripper shaft 34 concentrically mounted in a gripper tube, which has at least one recessed track 35.
  • the forceps gripper shaft 34 at several, and most preferably at each bearing pierced tracks 35 on.
  • the grooved raceways 35 of the tong gripper shaft 34 are associated with slotted needle rings 36.
  • the gripper tube is formed at least in two parts, wherein the tube segments 31 are received by bearings.
  • a gripper gripper system 29 for a medium-sized sheet-fed press for example, have five juxtaposed pipe segments 31, wherein each pipe segment 31 are preferably associated with two bearings. It can cooperate each tube segment 31 on both sides with a bearing point. The arranged between the outer bearing points of the turning drum 3 bearings can accommodate two of the pipe segments 31 at their common interface.
  • connection of two tube segments 31 of the gripper tube which collide at an interface is preferably effected by means of connectors 37, in particular via sleeves.
  • the tube segments 31 of the gripper tube can be connected via the connector 37 cohesively and / or non-positively.
  • the connectors 37 preferably have hardened raceways for the needle rims 36, in particular for the needles, arranged in the inserted raceways 35.
  • the two tube segments 31 connected to one another via a connector 37 are held rotatably in the area of the connector 37 via the needles of the slotted needle ring 36 with respect to the forceps gripper shaft 34.
  • the preparation of the gripper tube is preferably carried out in segments, preferably without heat treatment.
  • the connection of the tube segments 31 of the gripper tube by means of connectors 37, in particular sleeves, then takes place materially, in particular by plugging and / or bonding, and / or non-positively, in particular by shrinking.
  • the juxtaposed pipe segments 31 are thus connected over the drum width and are supported by bearing points relative to the turning drum 3, while the internal gripper shaft 34 by the slotted needle rings 36 against the pipe segments 31, in particular with respect to the gripper tube formed from joined or connected pipe segments 31 rotatably is.
  • the gripper tube formed from the assembled pipe segments 31 has over the drum width, in particular over the width of the sheet support surface, an at least approximately closed lateral surface.
  • the Fig. 11 shows a perspective view of a portion of the forceps gripper system 29.
  • the forceps gripper system 29 has a gripper tube and a coaxially mounted inside of this clamp gripper shaft 34.
  • the gripper tube includes a plurality of tube segments 31 connected to each other via connectors 37 (not shown). In the region of the connectors 37, the gripper tube is received in the turning drum 3 so as to be rotatable by means of pliers gripper bearing blocks 30. Compared with the pliers gripper bearing blocks 30, both the gripper tube and the gripper shaft 34 arranged inside the gripper tube can be rotated about an axis of rotation.
  • This common axis of rotation is parallel to the axis of rotation of the turning drum 3 and in particular concentric with the tong gripper shaft 34 and the gripper tube.
  • Both the forceps gripper shaft 34 and the gripper tube are associated with gripper elements.
  • a gripper gripper half is in particular arranged on the gripper tube, which corresponds to a gripper gripper half associated with the gripper shaft 34 or forms a clamping gap.
  • the forceps gripper half arranged on the gripper tube has here strikes spaced apart, which are fixedly connected to the gripper tube. Preferred are here spring-loaded gripper catches 33 associated with the gripper tube.
  • the gripper tube further has recesses in which the forceps gripper half associated with the forceps gripper shaft 34 is arranged.
  • rigid gripper tongues 32 fixedly connected to the inner pliers gripper shaft 34.
  • the rigid gripper tongues 32 can, for example, be fixedly connected, for example screwed, by the recesses into the forceps gripper shaft 34.
  • the sprung gripper catches 33 and the rigid gripper tongues 32 are arranged relative to one another in such a way that a clamping gap for sheet edges is formed between them.
  • the Fig. 12 shows a longitudinal section of a section of the forceps gripper system 29.
  • the forceps gripper shaft 34 is rotatably mounted about its axis of rotation within the tube segments 31 preferably formed by means of connector 37 gripper tube and has the at least one recessed track 35.
  • the slotted needle ring 36 is inserted in the grooved raceway 35.
  • the running in the grooved raceway 35 needles of the slotted needle ring 36 are guided by a hardened tread, preferably a hardened here durhärteten race 38.
  • the gripper tube is assembled from the tube segments 31 and preferably with a connector 37, such as a sleeve, positively and / or materially connected.
  • the connector 37 the hardened, particularly preferably through-hardened, runway for the needles of the slotted needle ring 36 have.
  • the hardened race 38 may be connected or combined with the connector 37 for this purpose.
  • the connector 37 is further preferably received by a tong gripper bearing block 30 via another needle ring 39. Between clamp gripper bearing block 30 and connector 37 39 axial securing devices 40 are provided here on both sides of the further needle ring, which can also act sealing.
  • the further needle ring 39 need not be slotted executed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Description

Die Erfindung betrifft eine bogenverarbeitende Maschine mit einer Wendevorrichtung mit einer Bogenführungstrommel und ein Verfahren zur Formatverstellung einer Bogenführungstrommel.The invention relates to a sheet-processing machine with a turning device with a sheet guiding drum and a method for format adjustment of a sheet guiding drum.

Aus der DE 26 32 243 A1 ist eine auf variable Bogenlängen einstellbare Umführtrommel für Druckmaschinen bekannt, die zwei kammartig ineinandergreifende Bogensegmente aufweist, wobei eines mit einem Vorderkanten-Greifersystem und das andere mit einem Hinterkanten-Saugersystem verbunden ist. Nachteilig an dieser Lösung ist, dass die Länge der einzelnen Kammzinken auf die maximale Formatlänge ausgelegt ist, was dazu führt, dass Formatlängen, die kleiner als die Hälfte der maximalen Formatlänge sind, nicht mehr verarbeitet werden können, da das Zusammenschieben begrenzt ist bzw. die Zinken in den Kanal ragen.From the DE 26 32 243 A1 For example, there is known a variable length sheet transfer drum for printing presses having two comb-like intermeshing sheet segments, one connected to a leading edge gripper system and the other connected to a trailing edge sucker system. A disadvantage of this solution is that the length of the individual comb teeth is designed for the maximum format length, which means that format lengths that are smaller than half the maximum format length, can no longer be processed because the collapse is limited or Prongs protrude into the canal.

Aus der DE - OS 23 58 223 ist eine Umführtrommel mit Einrichtungen zur Erfassung der Bogenvorder- und Bogenhinterkanten für Druckmaschinen bekannt, bei der die Länge der einzelnen Kammzinken auf die minimale Formatlänge ausgelegt ist, wobei für die Verarbeitung der maximalen Formatlänge ausschiebbare oder abklappbare Überbrückungsglieder erforderlich sind. Nachteilig an dieser Lösung ist einerseits, dass die Erreichung der erforderlichen Genauigkeit der Mantelfläche (Zylinderform) recht aufwändig herzustellen ist (Gelenke, Führungen) und andererseits, dass zum Ausklappen/Ausschieben entweder zusätzliche Antriebsmittel erforderlich sind oder bei einfacher Mitnahme große Spiele oder Federkräfte auftreten können, welche die Formatverstellung und den Druckvorgang stören können.From the DE - OS 23 58 223 a transfer drum with means for detecting the Bogenvorder- and sheet trailing edges for printing machines is known in which the length of the individual comb teeth is designed to the minimum format length, with the processing of the maximum format length extendable or hinged bridging members are required. The disadvantage of this solution is on the one hand, that the achievement of the required accuracy of the lateral surface (cylindrical shape) is quite complex to produce (joints, guides) and on the other hand, that for folding / pushing either additional drive means are required or can easily play large games or spring forces occur which can disturb the format adjustment and the printing process.

Bekannt ist weiterhin aus der DE 103 46 782 A1 eine Bogentransporttrommel einer Bedruckstoffbogen verarbeitenden Maschine, bei der Pneumatiknuten in Segmentzinken von Kammsegmenten eingebracht sind. Nachteilig ist dabei, dass die Wirkung auf bestimmte Spuren begrenzt wird und nicht in der erforderlichen kompletten Breite auf den Bogen wirken kann. Eine über die gesamte Bogenbreite wirksame Einrichtung ist aus der DE 10 2012 218 049 A1 bekannt, die aber in Umfangsrichtung sehr schmal ausgebildet ist und damit ebenfalls auf eine geringe Fläche begrenzt ist. Die für die Anordnung pneumatischer Wirkelemente verfügbare Funktionsfläche bleibt damit bei den bekannten Speichertrommeln sehr beschränkt.It is also known from the DE 103 46 782 A1 a sheet transport drum of a printing material sheet processing machine, are introduced in the pneumatic grooves in segment tines of comb segments. The disadvantage here is that the effect is limited to certain tracks and can not act in the required complete width on the bow. An over the entire sheet width effective device is from the DE 10 2012 218 049 A1 known, but which is very narrow in the circumferential direction and thus also limited to a small area. The functional surface available for the arrangement of pneumatic active elements thus remains very limited in the known storage drums.

Die DE 10 2007 061 399 A1 offenbart eine Bogenführungstrommel mit einer einen Greiferkanal überspannenden Kanalbrücke.The DE 10 2007 061 399 A1 discloses a sheet guiding drum with a channel bridge spanning a gripper channel.

Der Erfindung liegt daher die Aufgabe zugrunde, die Bogenführung an formatverstellbaren Bogenführungstrommeln in bogenverarbeitenden Maschinen weiter zu verbessern.The invention is therefore based on the object to further improve the bowing of format adjustable bow guide drums in sheet-processing machines.

Erfindungsgemäß wird die Aufgabe durch Vorrichtungen mit den Merkmalen der unabhängigen Vorrichtungsansprüche und ein Verfahren mit den Merkmalen des unabhängigen Verfahrensanspruchs gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen, der Beschreibung und den Zeichnungen.According to the invention the object is achieved by devices having the features of the independent device claims and a method having the features of the independent method claim. Advantageous embodiments will become apparent from the dependent claims, the description and the drawings.

Die Erfindung hat den Vorteil, dass die Bogenführung an formatverstellbaren Bogenführungstrommeln in bogenverarbeitenden Maschinen weiter verbessert wird.The invention has the advantage that the sheet guide is further improved on format-adjustable sheet guiding drums in sheet-processing machines.

In einer Ausführung wird eine Bogenführungstrommel eingesetzt, welche mindestens ein Greifersystem trägt. Mit der Bogenführungstrommel wird ein bogenförmiges Substrat, insbesondere ein Bogen, durch Rotationsbewegung geführt bzw. transportiert bzw. gefördert. Die Bogenführungstrommel kann einfach-, doppelt- oder mehrfachgroß ausgeführt sein, wobei eine einfachgroße Trommel genau ein Greifersystem aufweisen kann bzw. genau einen maximalformatigen Bogen umfangsseitig führen kann. Doppelt- oder mehrfachgroße Trommeln weisen entsprechend der Anzahl zwei oder mehr Greifersysteme auf bzw. können zwei oder mehr Bogen umfangsseitig halten.In one embodiment, a sheet guiding drum is used, which carries at least one gripper system. With the sheet guiding drum, an arcuate substrate, in particular a sheet, is guided by rotational movement or transported or conveyed. The sheet guiding drum may be single, double or multi-sized, with a single-sized drum having exactly one gripper system can or can lead exactly a maximum sized sheet circumferentially. Double or multi-size drums have two or more gripper systems in number, or can hold two or more sheets circumferentially.

In einer Ausführungsform wird eine Bogenführungstrommel mit mindestens einem mittleren Mantelsegment bereitgestellt, welches bevorzugt axial über die Trommelbreite zwischen Bogentragflächen weiterer Mantelsegmente angeordnet ist. Das mittlere Mantelsegment ist bevorzugt koaxial zur Trommel gelagert und/oder in bzw. entgegen der Umfangsrichtung der Trommel bewegbar. Das mittlere Mantelsegment kann mehrere voneinander beabstandete Bogentragflächen aufweisen. Dabei kann jede Bogentragfläche einzeln beispielsweise auf der Trommelachse gelagert sein oder es kann eine Mehrzahl an Bogentragflächen einer gemeinsamen Aufnahme, beispielsweise einer Traverse, zugeordnet sein, welche bevorzugt koaxial zur Bogenführungstrommel gelagert bzw. geführt ist. Die Bogentragflächen des mittleren Mantelsegmentes können einzeln, gruppenweise oder gemeinsam insbesondere über Lagerscheiben auf dem Trommelkörper gelagert sein. Die Bogentragflächen des mittleren Mantelsegmentes bilden mit Bogentragflächen von Segmentzinken bzw. mit weiteren Tragflächen der weiteren Mantelsegmente die Peripherie der Bogenführungstrommel. Insbesondere wird eine zumindest teilweise zylinderförmige bzw. trommelförmige Mantelfläche durch die mindestens drei zusammenwirkenden zueinander verstellbaren Mantelsegmente gebildet. Die Segmentzinken bzw. Bogentragflächen der zusammenwirkenden Mantelsegmente greifen bei Formatverstellung bzw. Formateinstellung in Umfangsrichtung ineinander, wobei im Minimalformat bevorzugt alle Segmentzinken der Mantelsegmente und die Bogentragflächen des mittleren Mantelsegmentes nebeneinander liegen. Zur Bogentragfläche gehören in Umfangsrichtung weiterhin Greiferaufschläge eines Greifersystems bzw. Saugsysteme für Bogenhinterkanten, beispielsweise Drehsauger.In one embodiment, a sheet guiding drum is provided with at least one middle casing segment, which is preferably arranged axially over the drum width between sheet supporting surfaces of further casing segments. The middle shell segment is preferably mounted coaxially to the drum and / or movable in or counter to the circumferential direction of the drum. The middle shell segment may have a plurality of spaced sheet support surfaces. In this case, each sheet support surface may be mounted individually, for example on the drum axis, or a plurality of sheet support surfaces may be assigned to a common receptacle, for example a traverse, which is preferably mounted or guided coaxially with the sheet guide drum. The sheet support surfaces of the middle shell segment can be mounted individually, in groups or together in particular on bearing disks on the drum body. The bow bearing surfaces of the middle shell segment form with bow support surfaces of segment tines or with other wings of the other shell segments the periphery of the sheet guiding drum. In particular, an at least partially cylindrical or drum-shaped lateral surface is formed by the at least three cooperating mutually adjustable jacket segments. The segment tines or arch support surfaces of the cooperating shell segments engage in format adjustment or format adjustment in the circumferential direction into each other, wherein in the minimum format, preferably all segment tines of the shell segments and the arch support surfaces of the middle shell segment are adjacent. The sheet support surface further includes gripper catches of a gripper system or suction systems for sheet trailing edges, for example rotary suckers in the circumferential direction.

Die kämmenden Bereiche einer Bogentragfläche entstehen durch aneinander entlanggleiten von Bogentragflächen in Umfangsrichtung der Bogenführungstrommel. Ein vorderes Mantelsegment weist dafür bevorzugt Segmentzinken auf oder besteht aus Segmentzinken, welche jeweils eine Bogentragfläche und in axialer Richtung Seitenflächen aufweisen. Ein hinteres Mantelsegment weist bevorzugt ebenfalls Segmentzinken auf oder besteht aus Segmentzinken, welche jeweils eine Bogentragfläche und in axialer Richtung Seitenflächen aufweisen. Ein in Umfangsrichtung zwischen dem vorderen Mantelsegment und dem hinteren Mantelsegment angeordnetes mittleres Mantelsegment weist bevorzugt ebenfalls Bogentragflächen auf, welche in axialer Richtung jeweils Seitenflächen aufweisen. Bei Formateinstellung bzw. Formatverstellung gleiten die Seitenflächen der vorderen Segmentzinken in Umfangsrichtung an den Seitenflächen der Bogentragflächen des mittleren Mantelsegmentes und/oder die Seitenflächen der Bogentragflächen des mittleren Mantelsegmentes an den Seitenflächen der Segmentzinken des hinteren Mantelsegmentes. Der Bereich, der durch entlanggleiten von Seitenflächen der Mantelsegmente gebildet werden kann, ist der kämmende Bereich einer Bogentragfläche der Bogenführungstrommel. Die Seitenflächen der Bogentragfläche des mittleren Mantelsegmentes bzw. der Segmentzinken gleiten bevorzugt minimal beabstandet zueinander bzw. weisen bevorzugt einen technologisch bedingten minimalen Abstand in axialer Richtung auf.The meshing areas of a sheet carrying surface are formed by sliding along sheet supporting surfaces in the circumferential direction of the sheet guiding drum. On For this purpose, the front shell segment preferably has segment tines or consists of segment tines, which each have an arch support surface and side surfaces in the axial direction. A rear shell segment preferably also has segment tines or consists of segment tines, which each have an arch support surface and side surfaces in the axial direction. An arranged in the circumferential direction between the front shell segment and the rear shell segment middle shell segment preferably also has bow support surfaces, which each have side surfaces in the axial direction. In format adjustment or format adjustment, the side surfaces of the front segment tines slide in the circumferential direction on the side surfaces of the arch support surfaces of the middle shell segment and / or the side surfaces of the arch support surfaces of the middle shell segment on the side surfaces of the segment tines of the rear shell segment. The area that can be formed by sliding along side surfaces of the shell segments is the meshing area of a sheet supporting surface of the sheet guiding drum. The side surfaces of the arch support surface of the middle shell segment or the segment prongs preferably slide at a minimum distance from each other or preferably have a technologically-related minimum distance in the axial direction.

Der Antrieb des mittleren Mantelsegmentes kann über einen separaten Antrieb, beispielsweise Einzelantrieb, erfolgen. Vorteilhafterweise wird der Antrieb des mittleren Mantelsegmentes aber von verstellbaren Elementen der Bogenführungstrommel abgeleitet. Bevorzugt wird der Antrieb des mittleren Mantelsegmentes vom formatverstellbaren Mantelsegment, insbesondere von dessen Saugsystemen, bevorzugt von Strecksaugern, abgeleitet, d. h., es ist kein Zusatzantrieb erforderlich. Durch den Antrieb erfolgt damit bevorzugt eine gemeinsame Verstellung des formatverstellbaren Mantelsegmentes und des mittleren Mantelsegmentes. Bevorzugt werden in einer Weiterbildung mehrere nebeneinander angeordnete Bogentragflächen aufweisende Überbrückungsglieder fest mit einer Traverse verbunden, die auf dem Schenkel des Trommelkörpers, beispielsweise eines Speichertrommelkörpers, gelagert ist. Bevorzugt wird die Traverse zwangläufig mit dem Antrieb des formatverstellbaren hinteren Mantelsegmentes, insbesondere den formatverstellbaren Saugsystemen, bevorzugt von Drehsaugern, verstellt. Der Antrieb der Traverse kann dabei über ein Übersetzungsgetriebe erfolgen. Das Übersetzungsgetriebe kann beispielsweise als Standrädergetriebe oder als Umlaufrädergetriebe ausgeführt sein. Insbesondere wird mit der Formatverstellbewegung des formatverstellbaren Mantelsegmentes das mittlere Mantelsegment mitbewegt. Die Traverse bewegt sich dabei beispielsweise mit einem Bruchteil des Stellwinkels des weiteren Mantelsegmentes. Weiterhin können Anschlagelemente insbesondere im Minimalformat und/oder Maximalformat für die bewegbaren Elemente vorgesehen sein.The drive of the middle shell segment can be done via a separate drive, for example, single drive. Advantageously, however, the drive of the middle shell segment is derived from adjustable elements of the sheet guiding drum. The drive of the middle jacket segment is preferably derived from the format-adjustable jacket segment, in particular from its suction systems, preferably from stretchable suckers, ie, no additional drive is required. By the drive is thus preferably carried out a common adjustment of the format adjustable shell segment and the middle shell segment. Preferably, in a development, a plurality of juxtaposed arch support surfaces having bridging members fixedly connected to a traverse, which on the leg of the Drum body, for example, a storage drum body, is stored. Preferably, the traverse is forcibly adjusted with the drive of the format adjustable rear shell segment, in particular the format adjustable suction systems, preferably of rotary suckers. The drive of the traverse can be done via a transmission gear. The transmission gear can be performed, for example, as a standard gear or as planetary gear. In particular, the middle jacket segment is moved along with the format adjustment movement of the format-adjustable jacket segment. The traverse moves, for example, with a fraction of the adjustment angle of the other shell segment. Furthermore, stop elements can be provided in particular in the minimum format and / or maximum format for the movable elements.

In bevorzugter Ausführungsform wird eine Bogenführungstrommel, insbesondere eine Speichertrommel, bereitgestellt, welcher das mindestens eine zentrisch gelagerte mittlere Mantelsegment, insbesondere eine Mehrzahl von Bogentragflächen aufweisenden Überbrückungsgliedern, und eine definierte Formatverstellung ohne zusätzlichen Antrieb aufweist. Eine solche zentrische Lagerung des mittleren Mantelsegmentes ist einfach herstellbar und damit vorteilhaft. Weiter vorteilhaft wird eine genaue und leichtgängige Lagerung für das mittlere Mantelsegment geschaffen. Weiter vorteilhaft ist die definierte zwangläufige Bewegung des mittleren Mantelsegmentes, was die Maschinensicherheit weiter erhöht. Bei mehrfachgroßen Bogenführungstrommeln können mittlere Mantelsegmente und die weiteren Mantelsegmente entsprechend mehrfach vorgesehen sein.In a preferred embodiment, a sheet guiding drum, in particular a storage drum, is provided, which has the at least one centrally mounted middle casing segment, in particular a plurality of arch support surfaces having bridging members, and a defined format adjustment without additional drive. Such centric storage of the middle shell segment is easy to produce and therefore advantageous. Further advantageous an accurate and smooth storage for the middle shell segment is created. Further advantageous is the defined positive movement of the middle shell segment, which further increases machine safety. For multi-sized bow guide drums middle shell segments and the other shell segments may be provided in accordance with multiple.

In bevorzugter Ausführungsform sind die Mantelsegmente für Vorder- und Hinterkante ca. um die Länge des mittleren Mantelsegmentes, insbesondere um die Umfangserstreckung der Bogentragflächen bzw. die Umfangserstreckung der Überbrückungsglieder, kürzer ausgeführt als für das maximale Bogenformat benötigt. Dadurch entsteht auf dem feststehenden Mantelsegment und/oder bevorzugt auf dem formatverstellbaren Mantelsegment, insbesondere dem Mantelsegment für den hinteren Bogenbereich, außerhalb des kämmenden Bereiches der Segmentzinken eine in Umfangsrichtung vergrößerte Funktionsfläche, welche auch über die volle Trommelbreite bzw. Bogenbreite für Zusatzfunktionen genutzt werden kann. Beispielsweise kann die geschaffene vergrößerte Funktionsfläche für pneumatische Elemente und/oder für mechanische Elemente genutzt werden. Vorteilhafterweise wird die Funktionsfläche für die Anordnung pneumatischer Wirkelemente am Umfang der Bogenführungstrommel, insbesondere der Speichertrommel, ohne Einschränkungen der maximalen und minimalen Formatlänge erheblich vergrößert. Diese erheblich vergrößerte Funktionsfläche ist besonders vorteilhaft für die Anordnung pneumatischer Wirkelemente am Umfang einer Speichertrommel bzw. auch für mechanische Elemente geeignet. Es kann damit eine über die Formatbreite ununterbrochene Funktionsfläche bereitgestellt werden.In a preferred embodiment, the shroud segments for the leading and trailing edge are made shorter by approximately the length of the central shroud segment, in particular around the circumferential extent of the sheet carrier surfaces or the circumferential extent of the bridging members, than required for the maximum sheet format. This results on the fixed shell segment and / or preferably on the format adjustable Sheath segment, in particular the sheath segment for the rear bow area, outside of the meshing region of the segment tines a circumferentially enlarged functional area, which can also be used over the full drum width or width for additional functions. For example, the created enlarged functional area can be used for pneumatic elements and / or for mechanical elements. Advantageously, the functional area for the arrangement of pneumatic active elements on the circumference of the sheet guiding drum, in particular the storage drum, without restrictions of the maximum and minimum format length is considerably increased. This significantly enlarged functional area is particularly advantageous for the arrangement of pneumatic active elements on the circumference of a storage drum or for mechanical elements. It can thus be provided over the format width uninterrupted functional area.

Bevorzugt wird die Bogenführungstrommel als Speichertrommel ausgebildet und weiter bevorzugt in einer Drei-Trommel-Wendevorrichtung beispielsweise einer Bogendruckmaschine eingesetzt. Weiterbildend kann der Bogenführungstrommel, insbesondere in Ausbildung als Speichertrommel, eine Ablöseeinrichtung (Leitrakel) zugeordnet sein, welche den Bogen auf einer anderen Bahn führt bzw. das Speichervermögen erweitert. Wenn eine solche Speichertrommel nicht über Rillen verfügt, in welche die Rakel eintauchen kann, kann die Bogenvorderkante um einen bestimmten Betrag mit Auswerfern ausgehoben werden, damit der Bogen sicher auf die Rakeleinrichtung geführt wird.Preferably, the sheet guiding drum is designed as a storage drum and more preferably used in a three-drum turning device, for example a sheet-fed press. Further, the sheet guiding drum, in particular in training as a storage drum, a release device (Leitrakel) be assigned, which leads the sheet on another track and extends the storage capacity. If such a storage drum does not have grooves into which the squeegee can dip, the sheet leading edge can be dug out by a certain amount so that the sheet is securely guided onto the squeegee device.

Im Folgenden soll die Erfindung beispielhaft erläutert werden. Die dazugehörigen Zeichnungen stellen dabei schematisch dar:

Fig. 1:
Wendevorrichtung für eine bogenverarbeitende Maschine;
Fig. 2:
Perspektivische Ansicht einer Speichertrommel;
Fig. 3:
Antrieb des mittleren Mantelsegmentes der Speichertrommel;
Fig. 4:
Wendevorrichtung mit einer ein Abweisblech in einem Greiferkanal aufweisenden Speichertrommel;
Fig. 5:
Ausführungsform eines mittels eines Viergelenkgetriebes bewegbaren Abweisbleches einer Speichertrommel;
Fig. 6:
Ausführungsform eines Abweisbleches in Parkposition in einem Greiferkanal einer Speichertrommel;
Fig. 7:
Abweisblech in Arbeitsposition in Höhe der Peripherie der Speichertrommel;
Fig. 8:
Wendevorrichtung für eine bogenverarbeitende Maschine mit einer an die Speichertrommel angestellten Ablöseeinrichtung;
Fig. 9:
Zusatzsauger im Bereich eines Greifersystems einer Speichertrommel;
Fig. 10:
Perspektivische Ansicht einer einfachgroßen Wendetrommel mit Zangengreifersystem;
Fig. 11:
Perspektivische Ansicht des Zangengreifersystems;
Fig. 12:
Längsschnitt eines Ausschnittes des Zangengreifersystems.
In the following, the invention will be explained by way of example. The accompanying drawings show schematically:
Fig. 1:
Turning device for a sheet processing machine;
Fig. 2:
Perspective view of a storage drum;
3:
Drive the middle shell segment of the storage drum;
4:
Turning device with a storage drum having a deflector plate in a gripper channel;
Fig. 5:
Embodiment of a movable by means of a four-bar linkage deflection plate of a storage drum;
Fig. 6:
Embodiment of a deflector in parking position in a gripper channel of a storage drum;
Fig. 7:
Deflector plate in working position at the level of the periphery of the storage drum;
Fig. 8:
Turning device for a sheet-processing machine with a removal device attached to the storage drum;
Fig. 9:
Additional suction in the region of a gripper system of a storage drum;
Fig. 10:
Perspective view of a single-sized turning drum with a forceps gripper system;
Fig. 11:
Perspective view of the forceps gripper system;
Fig. 12:
Longitudinal section of a section of the forceps gripper system.

Die Fig. 1 zeigt in einer Ausführungsform einen Ausschnitt einer bogenverarbeitenden Maschine, beispielsweise einer Bogendruckmaschine, insbesondere einer Bogenoffsetrotationsdruckmaschine bevorzugt in Aggregat- und Reihenbauweise mit einer Wendevorrichtung. Die Maschine enthält mindestens zwei nacheinander angeordnete Werke, welche beispielsweise als Anlage-, Druck,- Lack-, Trocken- oder Veredelungswerke ausgeführt sein können. Weiterhin kann die Maschine einen Anleger zur Bogenzufuhr und eine Auslage zum Ausgeben der bearbeiteten Bogen enthalten. Zwischen zwei Werken der Maschine ist die Wendevorrichtung angeordnet, wobei die Wendevorrichtung mindestens ein Bogenführungssystem aufweist, mit dem mindestens einer der Bogen gewendet werden kann. Bevorzugt wird durch die Wendevorrichtung ein jeweiliger von in einer Folge transportierter Bogen gewendet.The Fig. 1 In one embodiment, a detail of a sheet-processing machine, for example a sheet-fed printing machine, in particular a sheet-fed offset rotary printing press, preferably in aggregate and series construction with a turning device. The machine contains at least two successively arranged works, which can be designed, for example, as investment, printing, lacquer, dry or finishing plants. Furthermore, the machine may include a feeder for sheet feeding and a delivery for discharging the processed sheets. Between two plants of the machine, the turning device is arranged, wherein the turning device has at least one sheet guiding system with which at least one of the sheets can be turned. Preferably, by the turning device, a respective of transported in a sequence arc turned.

Die Wendevorrichtung ist hier zwischen einem Zylinder, beispielsweise einem Druckzylinder 4 eines vorgeordneten Werkes, insbesondere Druckwerkes, und einem weiteren Zylinder, beispielsweise einem Druckzylinder 4 und eines nachgeordneten Werkes, insbesondere Druckwerkes, der Maschine angeordnet. Die Druckzylinder 4 weisen vollflächige Mantelflächen auf und stehen hier mit Gummizylindern 5 und diese weiter mit Plattenzylindern in den Druckwerken in Wirkverbindung. In den Druckwerken sind bekannte nicht weiter dargestellte Farb- oder Farb- und Feuchtwerke angeordnet, die die entsprechende Druckfarbe auf eine auf dem jeweiligen Plattenzylinder gespannte Druckplatte aufbringen. Ein Plattenzylinder wird durch mindestens eine bevorzugt aber mehrere Walzen des zugeordneten Farb- oder Farb- und Feuchtwerkes während seiner Rotation eingefärbt. Beim Abrollen des Plattenzylinders auf dem Gummizylinder 5 wird die Druckfarbe motivgerecht auf den mit einem Gummituch bespannten Gummizylinder 5 übertragen. Zwischen dem Gummizylinder 5 und dem Druckzylinder 4 wird eine Druckzone gebildet, durch die der zu bedruckende Bogen vom Druckzylinder 4 gefördert wird. In der Druckzone bzw. im Druckspalt wird die Druckfarbe vom Gummizylinder 5 motivgerecht auf den Bogen übertragen. Die Gummizylinder 5 und Plattenzylinder können beispielsweise einfachgroß ausgeführt sein. Alternativ oder zusätzlich kann auch eine Wendevorrichtung zwischen anderen Werken in der Maschine angeordnet sein.The turning device is arranged here between a cylinder, for example a printing cylinder 4 of an upstream work, in particular printing unit, and a further cylinder, for example a printing cylinder 4 and a downstream work, in particular printing unit, the machine. The impression cylinder 4 have full-surface lateral surfaces and are here with rubber cylinders 5 and this further with plate cylinders in the printing units in operative connection. In the printing units known color or inking and dampening units are arranged, which apply the appropriate ink to a tensioned on the respective plate cylinder printing plate. A plate cylinder is colored by at least one but preferably several rollers of the associated inking or inking and dampening unit during its rotation. When unrolling the plate cylinder on the blanket cylinder 5, the ink is motive transferred to the covered with a rubber blanket cylinder 5. Between the blanket cylinder 5 and the impression cylinder 4, a printing zone is formed, through which the sheet to be printed is conveyed by the printing cylinder 4. In the printing zone or in the printing nip, the ink is transferred from the blanket cylinder 5 motive to the sheet. The blanket cylinder 5 and plate cylinder can be made, for example, a simple size. Alternatively or additionally, a turning device can be arranged between other plants in the machine.

Die Maschine enthält Bogenfördersysteme, insbesondere Bogenführungszylinder und/oder Bogenführungstrommeln, zum Transport der Bogen durch die Werke. In den Werken, beispielsweise Druckwerken, und in der Wendevorrichtung sind insbesondere Bogenführungszylinder und Bogenführungstrommeln angeordnet, die bevorzugt Greifersysteme 6 zum Fixieren der Bogen für den Bogentransport aufweisen. Die Greifersysteme 6 sind hier als Klemmgreifer zum Klemmen der Bogenvorderkante ausgebildet. Die Druckzylinder 4 können beispielsweise doppeltgroß ausgeführt sein und die zu bedruckenden Bogen während ihrer Rotation durch die Druckzone bzw. das Druckwerk transportieren. Für den Transport sind die Bogen an der Vorderkante mittels Greifersystemen 6 geklemmt und damit fixiert. Zwischen zwei Druckzylindern 4 können die Bogen von mindestens einem Bogenfördersystem transportiert und übergeben werden. Beispielsweise kann zwischen den Druckzylindern 4 eine Bogenführungstrommel oder können mehrere Bogenführungstrommeln bzw. -zylinder angeordnet sein. Die Bogenführungstrommeln bzw. -zylinder können einfach- oder mehrfachgroß ausgeführt sein. Für den Bogentransport kann der oder können die Bogenführungszylinder eine vollständige Mantelfläche oder zumindest Mantelflächensegmente aufweisen, auf denen die Bogen aufgelegt werden. Auch Bogenführungstrommeln können eine Mantelfläche oder zumindest Mantelflächensegmente aufweisen, welche auch bewegbar der Trommel zugeordnet sein können. Den Bogenführungstrommeln könne auch Kappen zugeordnet sein, welche beispielsweise bewegbar und/oder entfernbar ausgeführt sein können. Alternativ können Bogenführungstrommeln aber auch als sog. Transferter ohne Mantelflächensegmente ausgeführt sein. Zwischen den Bogenführungszylindern, insbesondere den Druckzylindern 4, und/oder den Bogenführungstrommeln werden die Bogen an der Vorderkante im Greiferschluss übergeben. Den Bogenfördersystemen können zusätzliche Bogenführungselemente, wie beispielsweise Bogenleitbleche, zur Bogenführung zugeordnet sein.The machine includes sheet conveying systems, in particular sheet guiding cylinders and / or sheet guiding drums, for transporting the sheets through the works. In the works, such as printing units, and in the turning device in particular sheet guiding cylinder and sheet guiding drums are arranged, which preferably have gripper systems 6 for fixing the sheet for the sheet transport. The gripper systems 6 are designed here as a clamping gripper for clamping the sheet leading edge. For example, the printing cylinders 4 can be double-sized and transport the sheets to be printed during their rotation through the printing zone or the printing unit. For transport, the sheets are clamped at the front edge by means of gripper systems 6 and thus fixed. Between two printing cylinders 4, the sheets can be transported and handed over by at least one sheet conveying system. For example, between the printing cylinders 4, a sheet guiding drum or a plurality of sheet guiding drums or cylinders can be arranged. The sheet guiding drums or cylinders can be made single or multi-sized his. For sheet transport, the sheet guiding cylinder or cylinders can have a complete lateral surface or at least lateral surface segments on which the sheets are laid. Bow guide drums can also have a lateral surface or at least lateral surface segments, which can also be associated with the drum so that they can move. The bow guide drums can also be associated with caps, which can be designed, for example, movable and / or removable. Alternatively, sheet guiding drums can also be designed as so-called transferters without lateral surface segments. Between the sheet guiding cylinders, in particular the printing cylinders 4, and / or the sheet guiding drums, the sheets are transferred at the front edge in the gripper closure. The sheet conveying systems can be assigned additional sheet guiding elements, such as sheet baffles, for bowing.

Die Bogenführungstrommeln bzw. -zylinder werden in einer Ausführungsform von einem Zahnradgetriebe eines durchgehenden Zahnräderzuges rotatorisch angetrieben. Der durchgehende Zahnräderzug kann von einem einzigen Hauptantrieb oder auch von mehreren einzelnen an unterschiedlichen Stellen eingekoppelten Motoren angetrieben werden. In weiterer Ausführungsform ist es aber auch möglich Zylinder, Trommeln und/oder Walzen einzeln oder gruppenweise anzutreiben. Bevorzugt kann beispielsweise einem Plattenzylinder ein Einzelantrieb zugeordnet sein, der den Plattenzylinder im Fortdruckbetrieb einzeln und/oder unabhängig vom Zahnräderzug der Maschine antreibt. Der Einzelantrieb für den Plattenzylinder kann insbesondere als Direktantrieb mit beispielsweise konzentrisch zu dessen Zylinderachse angeordnetem unmittelbar verbundenen Rotor ausgebildet sein. In der Wendevorrichtung rotieren die hier dargestellten angetriebenen Zylinder bzw. Trommeln in der durch die Pfeile angegebenen Richtung.The sheet guiding drums or cylinders are rotatably driven in one embodiment by a gear transmission of a continuous gear train. The continuous gear train can be driven by a single main drive or by several individual coupled at different locations motors. In a further embodiment, it is also possible to drive cylinders, drums and / or rollers individually or in groups. For example, a single-drive drive may preferably be associated with a plate cylinder, which drives the plate cylinder individually in the continuous printing mode and / or independently of the gear train of the machine. The single drive for the plate cylinder can be designed in particular as a direct drive with, for example, concentric with the cylinder axis arranged directly connected rotor. In the turning device, the driven cylinders or drums shown here rotate in the direction indicated by the arrows.

Die Wendevorrichtung ist besonders bevorzugt als Dreitrommelwendung ausgeführt und enthält drei Bogenführungstrommeln zum Transportieren von Bogen. Die Wendevorrichtung enthält beispielsweise eine Übergabetrommel 1, eine Speichertrommel 2 und eine Wendetrommel 3. Die Übergabetrommel 1 ist der Speichertrommel 2 unmittelbar vorgeordnet und die Wendetrommel 3 ist der Speichertrommel 2 unmittelbar nachgeordnet. Die Maschine ist bevorzugt zwischen einer Betriebsart Schöndruck und einer Betriebsart Schön- und Widerdruck umstellbar ausgeführt. In der Betriebsart Schöndruck können die Bogen ohne Wendung zwischen den Bogenführungszylindern und Bogenführungstrommeln übergeben werden. In der Betriebsart Schön- und Widerdruck erfolgt ein Wenden der Bogen durch die Wendevorrichtung, so dass im nachfolgenden Druckwerk die Bogenrückseite bearbeitet, insbesondere bedruckt, werden kann. Der Wendevorrichtung können nicht dargestellte Zwischentrockner und/oder Messsysteme zugeordnet sein.The turning device is particularly preferably designed as a three-drum application and contains three sheet guiding drums for transporting sheets. The Turning device includes, for example, a transfer drum 1, a storage drum 2 and a turning drum 3. The transfer drum 1 is the storage drum 2 immediately upstream and the turning drum 3 is the storage drum 2 immediately downstream. The machine is preferably carried out between a mode Schöndruck and a mode perfecting convertible. In perfecting mode, the sheets can be transferred without turning between the sheet guiding cylinders and sheet guiding drums. In the perfecting mode, the sheets are turned by the turning device, so that the sheet back can be processed, in particular printed, in the following printing unit. The turning device can be assigned not shown intermediate dryer and / or measuring systems.

Sowohl die Übergabetrommel 1 als auch die Speichertrommel 2 sind hier doppeltgroß ausgeführt. Die doppeltgroßen Trommeln weisen je zwei sich diametral in Greiferkanälen gegenüberliegende Greifersysteme 6 zum Transport der Bogen an der Vorderkante auf. Die jeweiligen Greiferkanäle erstrecken sich über die Trommelbreite und weisen eine Öffnung in der Mantelfläche auf. Ein in einem Greiferkanal angeordnetes Greifersystem 6 enthält bevorzugt eine über die Trommelbreite reichende Greiferwelle, an der beabstandet zueinander Greiferfinger fest angeordnet sind. Die Greiferfinger bilden bei einer Schwenkbewegung der Greiferwelle einen Klemmspalt mit einzelnen Greiferaufschlägen oder einer durchgehenden Greiferaufschlagleiste. Alternativ kann die Übergabetrommel 1 aber auch einfachgroß ausgeführt sein. In weiterer alternativer Ausführungsform können die Trommeln aber auch mehrfachgroß ausgeführt sein.Both the transfer drum 1 and the storage drum 2 are made double size here. The double-sized drums each have two gripper systems 6 located diametrically opposite one another in gripper channels for transporting the sheets to the front edge. The respective gripper channels extend over the drum width and have an opening in the lateral surface. A gripper system 6 arranged in a gripper channel preferably contains a gripper shaft extending over the drum width, at which gripper fingers spaced from one another are fixedly arranged. The gripper fingers form during a pivoting movement of the gripper shaft a nip with individual gripper hooks or a continuous gripper bar. Alternatively, however, the transfer drum 1 can also be made simple in size. In a further alternative embodiment, however, the drums can also be made several times large.

Die Wendetrommel 3 ist hier einfachgroß ausgeführt und enthält Greifer zur Übernahme eines Bogens von der Speichertrommel 2 an der Vorderkante im Schöndruck und der Hinterkante im Schön- und Widerdruck. Die Greifer der Wendetrommel 3 können schwenkbare Greifer und/oder Sauger oder ein Zangengreifersystem enthalten. Die Bogenübergabe von der Speichertrommel 2 an die Wendetrommel 3 erfolgt in einer Übergabezentralen. Die zwischen beiden Trommeln gebildete Übergabezentrale ist eine gedachte Linie, in welcher ein von der Speichertrommel 2 gehaltener Bogen vom Greifer bzw. von Greifern der Wendetrommel 3 übernommen wird. Die Übernahme des Bogens erfolgt registerhaltig während der Bogen kurzzeitig von beiden Trommeln gehalten wird. Alternativ kann die Wendetrommel 3 aber auch doppeltgroß oder mehrfachgroß ausgeführt sein, wobei eine einfachgroße Trommel oder ein einfachgroßer Zylinder in der Regel einen Bogen maximalen Formates umfangsseitig aufnehmen kann. Alternativ können natürlich auch andere Trommel- bzw. Zylindergrößen und/oder eine andere Anzahl von Trommeln bzw. Zylindern in den Werken, beispielsweise Druckwerken, und der Wendevorrichtung eingesetzt werden. Doppeltgroße bzw. mehrfachgroße Trommeln bzw. Zylinder können entsprechend zwei oder mehr maximalformatige Bogen gleichzeitig umfangsseitig aufnehmen.The turning drum 3 is here simply made large and contains gripper for taking over a sheet of the storage drum 2 at the front edge in straight printing and the trailing edge in perfecting. The grippers of the turning drum 3 may include pivotable grippers and / or suckers or a gripper gripper system. The sheet transfer from the storage drum 2 to the turning drum 3 takes place in a Transfer center. The transfer center formed between the two drums is an imaginary line in which a sheet held by the storage drum 2 is taken over by the gripper or grippers of the turning drum 3. The acquisition of the sheet is in register while the sheet is briefly held by two drums. Alternatively, however, the turning drum 3 can also be embodied as double-sized or multiple-sized, with a single-size drum or a single-size cylinder generally being able to accommodate a maximum format sheet on the circumference. Alternatively, of course, other drum or cylinder sizes and / or a different number of drums or cylinders in the works, such as printing units, and the turning device can be used. Double-sized or multi-sized drums or cylinders can simultaneously accommodate two or more maximum-size sheets at the same time.

In der Wendevorrichtung wird in der Betriebsart Schön- und Widerdruck der zu wendende Bogen mit seiner Vorderkante voran auf der Speichertrommel 2 geführt. Bei der Wendung wird der Bogen von der Speichertrommel 2 an der Übergabezentralen vorbeigeführt und von der Wendetrommel 3 an der Hinterkante erfasst. Dabei wird die auf der Speichertrommel 2 liegende Hinterkante des Bogens vom Greifer, insbesondere von einem Zangengreifer oder von Greifern und/oder Saugern, die schwenkbar in der rotierenden Wendetrommel 3 gelagert sind, übernommen. Der erfasste Bogen wird anschließend während des Rotationsfortschrittes der Wendetrommel 3 nach dem Prinzip der Hinterkantenwendung gewendet, so dass seine alte Hinterkante ab seiner Bewegungsumkehr zur neuen Vorderkante und die auf der Speichertrommel 2 liegende alte Vorderkante zur neuen Hinterkante wird.In the turning device in the operating mode perfecting the sheet to be turned with its leading edge leading out on the storage drum 2. When turning the sheet is passed by the storage drum 2 at the transfer centers and detected by the beater 3 at the trailing edge. In this case, the trailing edge of the sheet lying on the storage drum 2 is taken over by the gripper, in particular by a gripper gripper or by grippers and / or suckers, which are mounted pivotably in the rotating turning drum 3. The detected sheet is then turned during the rotation progress of the turning drum 3 on the principle of trailing edge application, so that its old trailing edge from its reversal to the new front edge and lying on the storage drum 2 old leading edge to the new trailing edge.

Die Fig. 2 zeigt eine doppeltgroße Speichertrommel 2 ausschnittsweise in perspektivischer Ansicht. Die Speichertrommel 2 ist beidseitig über einen Speichertrommel-Schenkel 7 rotationsbeweglich in Seitengestellen der Maschine gelagert. Dargestellt ist ein in einem der Greiferkanäle angeordnetes Greifersystem 6. Das Greifersystem 6 enthält hier eine in Lagerböcken gelagerte Greiferwelle, der über die Trommelbreite die Greiferfinger fest zugeordnet sind. Die Greiferwelle wird von mindestens einem Rollenhebel über eine nicht weiter dargestellte Kurvenrolle und Kurvenscheibe angetrieben. Das Greifersystem 6 ist an einem vorderen Mantelsegment angeordnet, welches den vorderen Bereich eines vom Greifersystem 6 geklemmten Bogens trägt. Das vordere Mantelsegment ist bevorzugt feststehend mit dem Speichertrommel-Schenkel 7 verbunden. Das vordere Mantelsegment ist hier als Greifer-Mantelsegment 8 bezeichnet.The Fig. 2 shows a double-sized storage drum 2 fragmentary in perspective view. The storage drum 2 is rotatably supported on both sides via a storage drum leg 7 in side frames of the machine. Shown is a gripper system 6 arranged in one of the gripper channels. The gripper system 6 here contains a mounted in bearing blocks gripper shaft, which are permanently assigned over the drum width, the gripper fingers. The gripper shaft is driven by at least one roller lever via a cam roller and cam not shown. The gripper system 6 is arranged on a front shell segment, which carries the front portion of a gripped by the gripper system 6 sheet. The front shell segment is preferably fixedly connected to the storage drum leg 7. The front shell segment is referred to here as a gripper shell segment 8.

In Umfangsrichtung der Speichertrommel 2 beabstandet von dem vorderen Mantelsegment ist ein hinteres Mantelsegment vorgesehen, welches den hinteren Bereich eines vom Greifersystem 6 geklemmten Bogens trägt. Das hintere Mantelsegment ist in Umfangsrichtung der Speichertrommel 2 gegenüber dem Speichertrommel-Schenkel 7 verlagerbar ausgeführt, so dass Bogen unterschiedlichen Formates sowohl vom vorderen Mantelsegment als auch vom hinteren Mantelsegment getragen werden können. Das hintere Mantelsegment ist vorzugsweise derart formatverstellbar ausgeführt, dass Segmentzinken der Mantelsegmente bei Formatverstellung kammartig ineinander greifen und dabei eine bogentragende Mantelfläche bilden. Die beiden sich diametral gegenüberliegenden hinteren Mantelsegmente der doppeltgroßen Speichertrommel 2 werden bevorzugt gemeinsam zur Formatverstellung gegenüber den feststehenden vorderen Mantelsegmenten bewegt. Dabei können ein gemeinsamer Antrieb oder synchronisierte Antriebe eingesetzt werden.In the circumferential direction of the storage drum 2 spaced from the front shell segment, a rear shell segment is provided which carries the rear portion of a gripped by the gripper system 6 bow. The rear shell segment is designed to be displaceable in the circumferential direction of the storage drum 2 relative to the storage drum leg 7 so that sheets of different format can be carried by both the front shell segment and the rear shell segment. The rear shroud segment is preferably configured in such a format-adjustable manner that segment tines of the shroud segments mesh with one another like a comb during format adjustment and thereby form a curved outer surface. The two diametrically opposite rear shell segments of the double-sized storage drum 2 are preferably moved together for format adjustment relative to the fixed front shell segments. In this case, a common drive or synchronized drives can be used.

An den gegenüber den vorderen Mantelsegmenten verstellbaren hinteren Mantelsegmenten sind weiterbildend jeweils Saugsysteme, hier insbesondere Drehsauger 17, zur Übernahme und Führung der Bogenhinterkanten vorgesehen. Durch die Drehsauger 17 können die Bogen während des Bogentransportes von der Übergabetrommel 1 zur Wendetrommel 3 auf der Speichertrommel 2 liegend und/oder im Schön- und Widerdruck nach der Übergabezentralen längs und/oder quer gestrafft werden. Im Bereich der Übergabezentralen zwischen Speichertrommel 2 und Wendetrommel 3 wird im Schön- und Widerdruck die Saugluftzufuhr zu den Drehsaugern 17 vorzugsweise reduziert und besonders bevorzugt unterbrochen, damit die Greifer der Wendetrommel 3 die Bogenhinterkante übernehmen und insbesondere von der Speichertrommel 2 lösen können. Das hintere Mantelsegment wird hier als Sauger-Mantelsegment 9 bezeichnet.At the opposite the front shell segments adjustable rear shell segments each further suction systems, in particular rotary suckers 17, are provided for the acquisition and management of the sheet trailing edges. Through the rotary vacuum cleaner 17, the sheets during the sheet transport of the transfer drum 1 to the beater 3 lying on the storage drum 2 and / or in the perfecting after the transfer centers longitudinally and / or transversely tightened become. In the area of the transfer centers between the storage drum 2 and the turning drum 3, the suction air supply to the rotary suckers 17 is preferably reduced and particularly preferably interrupted in perfecting pressure, so that the grippers of the turning drum 3 can take over the sheet trailing edge and in particular detach from the storage drum 2. The rear shell segment is referred to here as the sucker shell segment 9.

Die Umfangserstreckung eines vorderen Mantelsegmentes und des korrespondierenden hinteren Mantelsegmentes ist bevorzugt derart bemessen, dass diese gemeinsam eine gegenüber der maximalen Bogenlänge geringere Abmessung aufweisen. Ein Bogen maximalen Formates überragt damit das vordere und hintere Mantelsegment inklusive Segmentzinken in Summe in Umfangsrichtung. Zur Bogenführung enthält die Speichertrommel 2 mindestens ein mittleres Mantelsegment, welches in Umfangsrichtung zwischen dem vorderen Mantelsegment und dem hinteren Mantelsegment angeordnet ist. In der doppeltgroßen Ausführung enthält die Speichertrommel 2 hier genau zwei mittlere Mantelsegmente, welche jeweils mit den weiteren Mantelsegmenten der beiden Mantelhälften zusammenwirken. Insbesondere enthält die Speichertrommel 2 hier über die Trommelbreite mehrere das mittlere Mantelsegment bildende Bogentragflächen aufweisende Überbrückungsglieder 10, die zumindest zeitweise zwischen einem vorderen Mantelsegment und dem korrespondierenden hinteren Mantelsegment positionierbar sind. Die Überbrückungsglieder 10 sind dabei in Umfangsrichtung zwischen dem vorderen Mantelsegment und dem korrespondierenden hinteren Mantelsegment angeordnet. Die Bogentragsegmente für Vorder- und Hinterkante (Greifer-Mantelsegment 8 und Sauger-Mantelsegment 9) sind hier in Umfangsrichtung etwa um die Umfangserstreckung der Überbrückungsglieder 10 verkürzt ausgeführt. Die Überbrückungsglieder 10 sind hier gleichmäßig zueinander beabstandet angeordnet und besitzen eine schmale Erstreckung axial zur Speichertrommel 2.The circumferential extension of a front shell segment and the corresponding rear shell segment is preferably dimensioned such that they together have a smaller dimension compared to the maximum arc length. An arc of maximum format thus surmounted the front and rear shell segment including segment tines in total in the circumferential direction. For bowing, the storage drum 2 contains at least one middle shell segment, which is arranged in the circumferential direction between the front shell segment and the rear shell segment. In the double-sized version, the storage drum 2 contains exactly two middle shell segments here, which interact in each case with the further shell segments of the two shell halves. In particular, the storage drum 2 contains here over the drum width a plurality of the central shell segment-forming arch support surfaces having bridging members 10 which are at least temporarily positionable between a front shell segment and the corresponding rear shell segment. The bridging members 10 are arranged in the circumferential direction between the front shell segment and the corresponding rear shell segment. The Bogentragsegmente for leading and trailing edge (gripper shell segment 8 and nipple shell segment 9) are executed here in the circumferential direction about the circumferential extent of the bridging members 10 shortened. The bridging members 10 are arranged here uniformly spaced from one another and have a narrow extent axially to the storage drum 2.

Die Anordnung des mittleren Mantelsegmentes, insbesondere der Überbrückungsglieder 10, erfolgt über die Trommelbreite zwischen den Segmentzinken des vorderen und/oder hinteren Mantelsegmentes. Dabei weist das mittlere Mantelsegment, insbesondere die Überbrückungsglieder 10, im Bereich seiner Bogentragflächen keine mechanische Verbindung zu den Segmentzinken des Greifer-Mantelsegmentes 8 und/oder des Sauger-Mantelsegmentes 9 auf. Die Bogentragflächen des mittleren Mantelsegmentes, insbesondere die Überbrückungsglieder 10, sind bevorzugt unmittelbar benachbart zu Segmentzinken des Greifer-Mantelsegmentes 8 und/oder unmittelbar benachbart zu Segmentzinken des Sauger-Mantelsegmentes 9 angeordnet. Besonders bevorzugt sind die Überbrückungsglieder 10 vollständig sowohl zwischen den Segmentzinken des Greifer-Mantelsegmentes 8 als auch den Segmentzinken des Sauger-Mantelsegmentes 9 anordenbar ausgebildet. Die Überbrückungsglieder 10 sind weiter derart ausgebildet, dass diese eine Bogentragfläche gemeinsam mit dem Greifer-Mantelsegment 8 und dem Sauger-Mantelsegment 9 für jedes Bogenformat bilden. Ein vorderes Mantelsegment, insbesondere das Greifer-Mantelsegment 8, die Überbrückungsglieder 10 des mittleren Mantelsegmentes und das hintere Mantelsegment, insbesondere das Sauger-Mantelsegment 9, bilden zusammen eine Bogentragfläche für Bogen des jeweiligen Bogenformates. Das Sauger-Mantelsegment 9 wird bevorzugt stets derart zur Bogenhinterkante positioniert, so dass insbesondere mit den Drehsaugern 17 des Sauger-Mantelsegmentes 9 unabhängig vom Bogenformat die Bogenhinterkante fixierbar ist.The arrangement of the middle shell segment, in particular the bridging members 10, via the drum width between the segment tines of the front and / or rear shell segment. In this case, the middle shell segment, in particular the bridging members 10, in the region of its arch support surfaces no mechanical connection to the segment tines of the gripper shell segment 8 and / or the nipple shell segment 9. The arch support surfaces of the middle jacket segment, in particular the bridging members 10, are preferably arranged directly adjacent to segment tines of the gripper jacket segment 8 and / or directly adjacent to segment tines of the teat jacket segment 9. Particularly preferably, the bridging members 10 are completely formed so as to be arrangeable both between the segment tines of the gripper jacket segment 8 and the segment tines of the teat jacket segment 9. The bridging members 10 are further formed so as to form an arch support surface together with the gripper shell segment 8 and the sucker shell segment 9 for each sheet format. A front casing segment, in particular the gripper casing segment 8, the bridging members 10 of the middle casing segment and the rear casing segment, in particular the sucker casing segment 9, together form an arch support surface for sheets of the respective sheet format. The teat-jacket segment 9 is preferably always positioned in such a way to the sheet trailing edge, so that in particular with the rotary suckers 17 of the nipple shell segment 9, regardless of the sheet format, the sheet trailing edge is fixed.

Bevorzugt sind die Überbrückungsglieder 10 axial derart zwischen den Segmentzinken von Greifer-Mantelsegment 8 und Sauger-Mantelsegment 9 angeordnet, dass jedem Überbrückungsglied 10 ein Segmentzinken des Greifer-Mantelsegmentes 8 und ein Segmentzinken des Sauger-Mantelsegmentes 9 zugeordnet ist. Besonders bevorzugt ist jedem Überbrückungsglied 10 in Längsrichtung auf einer Seite genau ein Segmentzinken des Greifer-Mantelsegmentes 8 und auf der gegenüberliegenden Seite genau ein Segmentzinken des Sauger-Mantelsegmentes 9 unmittelbar benachbart. Weiter bevorzugt sind die Überbrückungsglieder 10 derart ausgebildet, dass in der Stellung des maximalen Bogenformates eine Überdeckung von Segmentzinken des Greifer-Mantelsegmentes 8, von Segmentzinken des Sauger-Mantelsegmentes 9 und der Überbrückungsglieder 10 in Umfangsrichtung vorhanden ist.The bridging members 10 are preferably arranged axially between the segment prongs of the gripper jacket segment 8 and the sucker jacket segment 9 such that each bridging member 10 is assigned a segment prong of the gripper jacket segment 8 and a segment prong of the sucker jacket segment 9. Particularly preferred is each bridging member 10 in the longitudinal direction on one side exactly one segment of the gripper tine gripper segment 8 and on the opposite side exactly one segment of the nipple-sheath segment 9 immediately adjacent. Continue Preferably, the bridging members 10 are formed such that in the position of the maximum sheet size an overlap of segment tines of the gripper sheath segment 8, of segment tines of the sucker shell segment 9 and the bridging members 10 is provided in the circumferential direction.

Die Überbrückungsglieder 10 können einzeln, gruppenweise oder gemeinsam auf der Trommelachse der Speichertrommel 2 gelagert sein. Bevorzugt werden die Überbrückungsglieder 10 gemeinsam einer Traverse 11, insbesondere einer profilierten Mitteltraverse 11, zugeordnet. Diese Traverse 11 ist bevorzugt derart ausgebildet, dass diese bei eingestelltem Minimalformat zwischen dem Greifer-Mantelsegment 8 und dem Sauger-Mantelsegment 9 Platz findet. Insbesondere überragen die Segmentzinken von Greifer-Mantelsegment 8 und/oder Sauger-Mantelsegment 9 die Traverse 11 bei Einstellung des Minimalformates. Bei einzeln oder gruppenweise gelagerten Überbrückungsgliedern 10 können diese auch einzeln oder gruppenweise bewegt und/oder angetrieben werden. Bevorzugt erfolgt aber ein gemeinsamer Antrieb der Überbrückungsglieder 10 über die gemeinsame Traverse 11. Die sich über die Trommelbreite erstreckende Traverse 11 ist in Umfangsrichtung der Speichertrommel 2 bewegbar gelagert. Bevorzugt ist die Traverse 11 im seitlichen Trommelbereich mit Lagerscheiben verbunden, welche auf dem Trommelkörper der Speichertrommel 2 gelagert sind. Die Lagerung der Lagerscheiben kann benachbart zur Lagerung des verstellbaren Mantelsegmentes, beispielsweise innen neben den Lagerstellen des Sauger-Mantelsegmentes, 9 erfolgen. Die Lagerscheiben sind besonders bevorzugt koaxial zur Rotationsachse der Speichertrommel 2 gelagert, so dass die Bogentragflächen der Überbrückungsglieder 10 in jeder Stellung exakt zylinderförmig bzw. trommelförmig ausgerichtet sind.The bridging members 10 may be mounted individually, in groups or together on the drum axis of the storage drum 2. Preferably, the bridging members 10 are assigned together to a traverse 11, in particular a profiled middle traverse 11. This traverse 11 is preferably designed such that it takes place at set minimum format between the gripper shell segment 8 and the sucker shell segment 9 space. In particular, the segment tines of gripper shell segment 8 and / or sucker shell segment 9 project beyond the traverse 11 when setting the minimum format. When individually or groupwise mounted bridging members 10, these can also be moved and / or driven individually or in groups. Preferably, however, a common drive of the bridging members 10 via the common cross member 11 which extends over the drum width Traverse 11 is mounted movably in the circumferential direction of the storage drum 2. Preferably, the traverse 11 is connected in the lateral drum area with bearing discs, which are mounted on the drum body of the storage drum 2. The storage of the bearing discs can be adjacent to the storage of the adjustable shell segment, for example, inside next to the bearings of the nipple shell segment, 9 done. The bearing discs are particularly preferably mounted coaxially to the axis of rotation of the storage drum 2, so that the sheet support surfaces of the bridging members 10 are aligned in each position exactly cylindrical or drum-shaped.

Die Fig. 3 zeigt den Antrieb der Überbrückungsglieder 10 der Speichertrommel 2 insbesondere zur Formatverstellung. Der Antrieb der die Überbrückungsglieder 10 tragenden Traverse 11 kann über ein Übersetzungsgetriebe erfolgen. Beispielsweise kann mit der Bewegung des Sauger-Mantelsegmentes 9 relativ zum Greifer-Mantelsegment 8 ein Zahnsegment 13 als Antrieb mitbewegt werden. Dieses Zahnsegment 13 kann fest dem Sauger-Mantelsegment 9 zugeordnet sein. Das mit dem Sauger-Mantelsegment 9 bewegte Zahnsegment 13 kann weiter in ein Stufenritzel, beispielsweise ein Zahnrad 14 und ein Zahnrad 15, eingreifen, welches dann die Traverse 11 mit einem Bruchteil des Stellwinkels der Sauger-Mantelsegmentes 9 bewegt, beispielsweise ca. der Hälfte. In der dargestellten Ausführungsform greift das Zahnrad 14 in das Zahnsegment 13 und das mit dem Zahnrad 14 insbesondere fest verbundene Zahnrad 15 in ein Zahnsegment 16. Das Zahnradpaar 14/15 überträgt die vom Zahnsegment 13 des Sauger-Mantelsegmentes 9 eingeleitete Bewegung im vorwählbaren Übersetzungsverhältnis ungleich eins an das Zahnsegment 16, welches wiederum fest mit der die Überbrückungsglieder 10 tragenden Traverse 11 verbunden ist. Bevorzugt kann ein solcher Antrieb beiderseits der Speichertrommel 2 vorgesehen sein. Der Antrieb könnte alternativ aber auch als Umlaufrädergetriebe ausgeführt sein. Weiter alternativ kann der Antrieb auch unmittelbar vom Antrieb des bewegbaren Mantelsegmentes, hier des Sauger-Mantelsegmentes 9, abgeleitet sein oder der Antrieb dem mittleren Mantelsegment zugeordnet sein und weiter die Bewegung an das formatverstellbare Mantelsegment, beispielsweise das Sauger-Mantelsegment 9, übertragen werden.The Fig. 3 shows the drive of the bridging members 10 of the storage drum 2 in particular for format adjustment. The drive of the bridging members 10 supporting cross member 11 can be done via a transmission gear. For example can be moved with the movement of the sucker shell segment 9 relative to the gripper shell segment 8, a toothed segment 13 as a drive. This sector gear 13 may be fixedly assigned to the sucker shell segment 9. The toothed segment 13 moved with the nipple jacket segment 9 can continue to engage in a stepped pinion, for example a toothed wheel 14 and a toothed wheel 15, which then moves the traverse 11 at a fraction of the adjusting angle of the teat-shell segment 9, for example approximately half. In the illustrated embodiment, the gear 14 engages in the toothed segment 13 and the gear 15 in particular firmly connected gear 15 in a toothed segment 16. The gear pair 14/15 transmits the introduced from the toothed segment 13 of the sucker shell segment 9 movement in the preselected gear ratio unequal to one to the toothed segment 16, which in turn is fixedly connected to the bridging members 10 carrying crossmember 11. Preferably, such a drive can be provided on both sides of the storage drum 2. The drive could alternatively be designed as a planetary gear. Further alternatively, the drive can also be derived directly from the drive of the movable shell segment, here the sucker shell segment 9, or be assigned to the drive the middle shell segment and continue the movement of the format adjustable shell segment, for example, the sucker shell segment 9, transferred.

Beispielsweise kann sich das Greifer-Mantelsegment 8 inklusive der Segmentzinken vom Greifersystem 6 in Umfangsrichtung der Speichertrommel 2 über einen Radius bzw. Drehwinkel von ca. 40° erstrecken. Die Aufschläge des Greifersystems 6 bilden dabei ebenfalls die Bogentragefläche, können aber dem Greifer-Mantelsegment 8 benachbart im Greiferkanal angeordnet sein. Die Aufschläge des Greifersystems 6 können dem Greifer-Mantelsegment 8 fest zugeordnet bzw. mit diesem verbunden sein. Die Überbrückungsglieder 10 können sich beispielsweise von deren Vorderkante bis zu deren Hinterkante über einen Umfangsbereich bzw. Radius von ca. 32° erstrecken. Die Segmentzinken des Sauger-Mantelsegmentes 9 können sich bis zum Saugersystem, insbesondere Drehsaugern 17, beispielsweise über einen Umfangsbereich bzw. Radius von ca. 40° erstrecken. Das Saugersystem, insbesondere die Drehsauger 17, bilden dabei ebenfalls die Bogentragfläche, befinden sich aber ebenfalls bevorzugt im dem Sauger-Mantelsegment 9 benachbart angeordneten Greiferkanal. Das Saugersystem, insbesondere die Drehsauger 17, sind dabei dem Sauger-Mantelsegment 9 fest zugeordnet. Im Maximalformat könnte auch eine Überlappung der Überbrückungsglieder 10 in Umfangsrichtung mit den Segmentzinken des Greifer-Mantelsegmentes 8 und/oder des Sauger-Mantelsegmentes 9 vorliegen. Im Minimalformat liegen die Überbrückungsglieder 10 bevorzugt vollständig zwischen den Segmentzinken von Greifer-Mantelsegment 8 und Sauger-Mantelsegment 9.For example, the gripper sheath segment 8, including the segment tines, can extend from the gripper system 6 in the circumferential direction of the storage drum 2 over a radius or angle of rotation of approximately 40 °. The cuffs of the gripper system 6 also form the sheet support surface, but may be arranged adjacent to the gripper casing segment 8 in the gripper channel. The impacts of the gripper system 6 may be assigned to the gripper shell segment 8 or connected to this. The bridging members 10 may extend, for example, from the leading edge thereof to the trailing edge over a peripheral region or radius of approximately 32 °. The segment tines of the teat-jacket segment 9 can be up to the teat system, particular rotary suckers 17, for example, extend over a peripheral region or radius of about 40 °. The nipple system, in particular the rotary suckers 17, likewise form the sheet support surface, but are also preferably located in the gripper channel arranged adjacent to the nipple cover segment 9. The nipple system, in particular the rotary suckers 17, are in this case permanently assigned to the nipple jacket segment 9. In maximum format, an overlap of the bridging members 10 in the circumferential direction with the segment prongs of the gripper sheath segment 8 and / or the sucker sheath segment 9 could also be present. In minimal format, the bridging members 10 are preferably located completely between the segment prongs of the gripper jacket segment 8 and the sucker jacket segment 9.

Durch die zusammenwirkenden, bei Formatverstellung kammartig ineinandergreifenden mindestens drei Mantelsegmente entsteht außerhalb des kämmenden Bereiches der Segmentzinken die sich in Umfangsrichtung erstreckende Funktionsfläche 12, welche auch über die volle Trommelbreite bzw. Bogenbreite für Zusatzfunktionen genutzt werden kann. Die erweiterte Funktionsfläche 12 kann dem Greifer-Mantelsegment 8 oder dem Sauger-Mantelsegment 9 zugeordnet werden oder auf Greifer-Mantelsegment 8 und Sauger-Mantelsegment 9 aufgeteilt werden. Diese vergrößerte Funktionsfläche 12 kann beispielsweise für einen mechanischen Bogenauswerfer am Greifer-Mantelsegment 8 und/oder für pneumatische Elemente am Greifer-Mantelsegment 8 und/oder Sauger-Mantelsegmente 9 genutzt werden.Due to the cooperating, with format adjustment comb-like interlocking at least three shell segments outside of the meshing region of the segment tines extending in the circumferential direction functional surface 12, which can be used over the full drum width or width for additional functions. The extended functional surface 12 may be assigned to the gripper sheath segment 8 or the sucker sheath segment 9 or split on the gripper sheath segment 8 and the sucker sheath segment 9. This enlarged functional surface 12 can be used, for example, for a mechanical sheet ejector on the gripper casing segment 8 and / or for pneumatic elements on the gripper casing segment 8 and / or vacuum casing segments 9.

Die im nicht kämmenden Bogentragbereich der Speichertrommel 2 geschaffene Funktionsfläche 12 ist Teil der Bogentragfläche. Die geschaffene Funktionsfläche 12 der Speichertrommel 2 ist hier dem Sauger-Mantelsegment 9 zugeordnet und kann beispielsweise eine Umfangserstreckung von ca. 25° aufweisen. Die Funktionsfläche 12 erstreckt sich hier über die Trommelbreite und weist eine Erstreckung in Umfangsrichtung der Speichertrommel 2 auf. Die Umfangserstreckung der Funktionsfläche 12 ist hier bevorzugt vollständig zwischen den Segmentzinken des Sauger-Mantelsegmentes 9 und dessen Drehsaugern 17 vorgesehen. Die andere Mantelhälfte bzw. die gegenüberliegende Bogenauflagefläche der doppeltgroßen Speichertrommel 2 ist bevorzugt baugleich ausgeführt bzw. liegt der ersten Mantelhälfte bzw. der ersten Bogenauflagefläche diametral gegenüber. Die andere Bogenauflagefläche umfasst dabei insbesondere ebenfalls die Aufschläge der Greifer, die Bogentragflächen der Segmentzinken des vorderen und hinteren Mantelsegmentes und die Bogentragflächen des mittleren Mantelsegmentes ggf. inklusive von Saugsystemen.The functional surface 12 created in the non-combing sheet support region of the storage drum 2 is part of the sheet support surface. The created functional surface 12 of the storage drum 2 is here associated with the sucker shell segment 9 and may, for example, have a circumferential extent of about 25 °. The functional surface 12 extends here over the drum width and has an extension in the circumferential direction of the storage drum 2. The circumferential extent of the functional surface 12 is here preferably completely between the segment tines of the nipple-shell segment 9 and whose rotary suckers 17 are provided. The other shell half or the opposite sheet support surface of the double-sized storage drum 2 is preferably designed identical or is the first shell half or the first sheet support surface diametrically opposite. In particular, the other sheet support surface also includes the cuffs of the grippers, the arch support surfaces of the segment tines of the front and rear shell segment and the arch support surfaces of the middle shell segment, if necessary, including suction systems.

Die Fig. 4 zeigt eine Wendevorrichtung mit einer ein Bogenführungselement in einem Greiferkanal aufweisenden Speichertrommel 2. Die Wendevorrichtung ist Teil einer bogenverarbeitenden Maschine, beispielsweise einer Bogendruckmaschine, insbesondere einer Bogenoffsetrotationsdruckmaschine bevorzugt in Aggregat- und Reihenbauweise, beispielsweise wie oben beschrieben. Die Wendevorrichtung ist hier als Drei-Trommel-Wendung mit einer beispielsweise doppeltgroßen Übergabetrommel 1, der doppeltgroßen Speichertrommel 2 und einer einfachgroßen Wendetrommel 3 ausgeführt. Die Übergabetrommel 1 weist bogentragende Mantelflächen auf und ist hier einem Druckzylinder 4 eines vorgeordneten Druckwerkes nachgeordnet. Unterhalb der Übergabetrommel 1 sind Bogenleitelemente zur Bogenführung angeordnet. Die Bogenleitelemente sind bevorzugt als Bogenleitbleche ausgebildet und weisen weiterbildend pneumatische Führungsmittel auf. Insbesondere sind Blasdüsen in der Führungsfläche der Bogenleitbleche angeordnet, die mit Blasluft oder Saugluft beaufschlagt werden können. Bevorzugt wird zur Bogenführung von den Bogenleitblechen ein Luftpolster ausgebildet, durch das die Bogen an der Mantelfläche der Übergabetrommel 1 gehalten werden. Weiter sind auch der Speichertrommel 2 und/oder der Wendetrommel 3 Bogenleitelemente, insbesondere Bogenleitbleche, zugeordnet.The Fig. 4 shows a turning device with a sheet guiding element in a gripper channel having storage drum 2. The turning device is part of a sheet-processing machine, such as a sheet-fed press, in particular a Bogenoffsetrotationsdruckmaschine preferably in aggregate and series construction, for example as described above. The turning device is designed here as a three-drum turn with a double-sized transfer drum 1, the double-sized storage drum 2 and a single-size turning drum 3, for example. The transfer drum 1 has curved outer surfaces and is here downstream of a pressure cylinder 4 of an upstream printing unit. Below the transfer drum 1 sheet guiding elements are arranged for sheet guiding. The sheet guiding elements are preferably designed as sheet guide plates and have further forming pneumatic guide means. In particular, blowing nozzles are arranged in the guide surface of the sheet guide plates, which can be acted upon with blown air or suction air. Preferably, an air cushion is formed by the sheet guide plates for sheet guiding, by which the sheets are held on the lateral surface of the transfer drum 1. Next, the storage drum 2 and / or the beater 3 Bogenleitelemente, in particular sheet guide, associated.

Die Speichertrommel 2 ist beidseitig rotationsbeweglich in Seitengestellen der Maschine gelagert und enthält zwei diametral in Greiferkanälen angeordnete Greifersysteme 6.The storage drum 2 is rotatably supported on both sides in side frames of the machine and contains two gripper systems 6 arranged diametrically in gripper channels.

Jedes Greifersystem 6 enthält hier eine in Lagerböcken gelagerte Greiferwelle, der über die Trommelbreite die Greiferfinger fest zugeordnet sind. Die Greiferwelle wird von mindestens einem Rollenhebel über eine nicht weiter dargestellte Kurvenrolle und Kurvenscheibe angetrieben. Die Greifersysteme 6 sind an vorderen feststehenden Mantelsegmenten angeordnet, welche den vorderen Bereich eines von einem Greifersystem 6 geklemmten Bogens tragen. In Umfangsrichtung der Speichertrommel 2 beabstandet von den vorderen Mantelsegmenten sind hintere Mantelsegmente vorgesehen, welche den hinteren Bereich eines von einem Greifersystem 6 geklemmten Bogens tragen. Die hinteren Mantelsegmente sind in Umfangsrichtung der Speichertrommel 2 verlagerbar bzw. verstellbar ausgeführt, so dass Bogen unterschiedlichen Formates sowohl von den vorderen Mantelsegmenten als auch von den direkt korrespondierenden hinteren Mantelsegmenten getragen werden können. Die Mantelsegmente sind vorzugsweise derart formatverstellbar ausgeführt, dass Segmentzinken der Mantelsegmente bei Formatverstellung kammartig ineinander greifen und dabei eine bogentragende Mantelfläche bilden. Die beiden sich diametral gegenüberliegenden hinteren Mantelsegmente der doppeltgroßen Speichertrommel 2 werden bevorzugt gemeinsam zur Formatverstellung gegenüber den feststehenden vorderen Mantelsegmenten bewegt. Dabei können ein gemeinsamer Antrieb oder synchronisierte Antriebe eingesetzt werden. Die Speichertrommel 2 könnte aber auch Leitstreifen und/oder Greiferaussparungen an der Mantelfläche oder auch weitere beispielsweise mittige, bewegbare Mantelsegmente aufweisen.Each gripper system 6 here contains a mounted in bearing blocks gripper shaft, which are permanently assigned over the drum width, the gripper fingers. The gripper shaft is driven by at least one roller lever via a cam roller and cam not shown. The gripper systems 6 are arranged on front fixed shell segments, which carry the front portion of a clamped by a gripper system 6 arc. In the circumferential direction of the storage drum 2 spaced from the front shell segments rear shroud segments are provided which carry the rear portion of a clamped by a gripper system 6 bow. The rear shell segments are designed to be displaceable or adjustable in the circumferential direction of the storage drum 2, so that sheets of different format can be carried by both the front shell segments and by the directly corresponding rear shell segments. The shroud segments are preferably designed to be adjustable in size such that segment tines of the shroud segments mesh with one another like a comb during format adjustment and thereby form a curved outer surface. The two diametrically opposite rear shell segments of the double-sized storage drum 2 are preferably moved together for format adjustment relative to the fixed front shell segments. In this case, a common drive or synchronized drives can be used. However, the storage drum 2 could also have guide strips and / or gripper recesses on the lateral surface or else further, for example, central, movable shell segments.

An den hier gegenüber den vorderen Mantelsegmenten verstellbaren hinteren Mantelsegmenten sind bevorzugt jeweils Saugsysteme, hier insbesondere Drehsauger 17, zur Übernahme und Führung der Bogenhinterkanten vorgesehen. Durch die Drehsauger 17 können die Bogen während des Bogentransportes von der Übergabetrommel 1 zur Wendetrommel 3 auf der Speichertrommel 2 liegend und/oder im Schön- und Widerdruck nach der Übergabezentralen längs und/oder quer gestrafft werden. Im Bereich der Übergabezentralen zwischen Speichertrommel 2 und Wendetrommel 3 wird im Schön- und Widerdruck die Saugluftzufuhr zu den Drehsaugern 17 vorzugsweise reduziert und besonders bevorzugt unterbrochen, damit die Greifer der Wendetrommel 3 die Bogenhinterkante übernehmen und insbesondere von der Speichertrommel 2 lösen können. Alternativ oder weiterbildend kann die Speichertrommel 2 weitere pneumatisch wirkende Elemente aufweisen. Solche weiteren pneumatischen Elemente können beispielsweise in der Bogentragfläche und/oder in den Greiferkanälen der Speichertrommel 2 integriert sein. Beispielsweise können die vorderen und/oder hinteren Mantelsegmente und/oder die Segmentzinken mit pneumatischen Elementen, insbesondere Saugöffnungen und/oder Nuten, versehen sein.At the here opposite the front shroud segments adjustable rear shroud segments are preferably each suction systems, in particular rotary suckers 17, provided for taking over and guiding the sheet trailing edges. Through the rotary suckers 17, the sheets during sheet transport from the transfer drum 1 to the beater 3 lying on the storage drum 2 and / or in perfecting after the transfer centers along and / or transversely tightened. In the area of transfer centers between storage drum 2 and Turning drum 3 is preferably reduced in perfecting the suction air to the rotary vacuum cleaner 17 and preferably interrupted, so that the gripper of the turning drum 3 take over the sheet trailing edge and in particular can solve the storage drum 2. Alternatively or further, the storage drum 2 may comprise further pneumatically acting elements. Such further pneumatic elements may for example be integrated in the sheet carrier surface and / or in the gripper channels of the storage drum 2. For example, the front and / or rear shell segments and / or the segment tines can be provided with pneumatic elements, in particular suction openings and / or grooves.

Die Fig. 5 zeigt ein von einem Führungsgetriebe bewegbares Bogenführungselement in einem Greiferkanal einer Bogenführungstrommel, der hier beispielsweise als Speichertrommel 2 ausgeführt ist. In einer doppeltgroßen Speichertrommel 2 können in jedem der beiden Greiferkanäle die Bogenführungselemente angeordnet sein. Die Bogenführungselemente können ein- oder mehrteilig in einem jeweiligen Greiferkanal angeordnet sein. Dabei kann sich ein Bogenführungselement nur teilweise oder über die gesamte Trommelbreite im Greiferkanal erstrecken. Es können auch Teilelemente des Bogenführungselementes lediglich den Kanalwänden beispielsweise zum Schutz des Greifersystems 6 und/oder der Drehsauger 17 zugeordnet sein. Bevorzugt erstreckt sich das Bogenführungselement in Umfangsrichtung von den Drehsaugern 17 bis über das Greifersystem 6 im selben Greiferkanal. Das Bogenführungselement ist vom Führungsgetriebe insbesondere taktweise bewegbar. Es wird bevorzugt eine Bewegung des Bogenführungselementes in radialer Richtung innerhalb des Greiferkanals und/oder aus der Speichertrommel-Peripherie 2.1 heraus realisiert. Es kann zusätzlich auch eine Schwenkbewegung des Bogenführungselementes realisiert sein.The Fig. 5 shows a movable guide of a guide sheet guiding element in a gripper channel of a sheet guiding drum, which is designed here for example as a storage drum 2. In a double-sized storage drum 2, the sheet guiding elements can be arranged in each of the two gripper channels. The sheet guiding elements can be arranged in one or more parts in a respective gripper channel. In this case, a sheet guiding element can extend only partially or over the entire drum width in the gripper channel. It can also be assigned to the channel walls, for example, to protect the gripper system 6 and / or the rotary vacuum 17 and sub-elements of the sheet guiding element. Preferably, the sheet guiding element extends in the circumferential direction of the rotary suckers 17 to the gripper system 6 in the same gripper channel. The sheet guiding element is in particular cyclically movable by the guide gear. It is preferably realized a movement of the sheet guiding element in the radial direction within the gripper channel and / or from the storage drum periphery 2.1 out. It can additionally be realized a pivoting movement of the sheet guiding element.

Bevorzugt ist das Führungsgetriebe als Mehrgelenkgetriebe, besonders bevorzugt als Koppelgetriebe und hier insbesondere als Viergelenkgetriebe 19 ausgebildet. Besonders bevorzugt wird das Bogenführungselement als Abweisblech 18 ausgebildet, welches weiterbildend auch pneumatisch beaufschlagbar ausgeführt sein kann. Das Abweisblech 18 kann vom Führungsgetriebe, hier dem Viergelenkgetriebe 19, zumindest zwischen einer Parkposition 18.1, in der das Abweisblech 18 innerhalb der Speichertrommel-Peripherie 2.1 liegt, und einer Arbeitsposition 18.2, in der das Abweisblech 18 zumindest annähernd in der Höhe der Speichertrommel-Peripherie 2.1 liegt, bewegt werden. In der Arbeitsposition 18.2 kann das Abweisblech 18 zumindest mit der in Rotationsrichtung nachlaufenden Kante aus der Speichertrommel-Peripherie 2.1 herausragen. Die nachlaufende Kante kann dabei beispielsweise 1 bis 20 mm, vorzugsweise 1 bis 10 mm und besonders bevorzugt ca. 5 mm über der Speichertrommel-Peripherie 2.1 liegen. Die vorauslaufende Kante des Abweisbleches 18 liegt dabei bevorzugt zumindest annähernd in Höhe der Speichertrommel-Peripherie 2.1. Das Greifersystem 6 im Greiferkanal ist bevorzugt in beiden Positionen des Abweisbleches 18 von diesem überdeckt.Preferably, the guide gear is designed as a multi-link gear, particularly preferably as a coupling gear and here in particular as a four-bar linkage 19. Particularly preferably, the sheet guiding element is designed as a deflector 18, which weiterbildend can also be performed pneumatically acted upon. The deflector plate 18 can from the guide gear, here the four-bar linkage 19, at least between a parking position 18.1, in which the deflector 18 is located within the storage drum periphery 2.1, and a working position 18.2, in which the deflector 18 at least approximately in height of the storage drum periphery 2.1 lies, be moved. In the working position 18.2, the deflecting plate 18 can protrude from the storage drum periphery 2.1 at least with the edge trailing in the direction of rotation. The trailing edge can be, for example, 1 to 20 mm, preferably 1 to 10 mm and particularly preferably about 5 mm above the storage drum periphery 2.1. The leading edge of the Abweisbleches 18 is preferably at least approximately equal to the storage drum periphery 2.1. The gripper system 6 in the gripper channel is preferably covered in both positions of the deflector 18 of this.

In der Parkposition 18.1 liegt das Abweisblech 18 innerhalb der Speichertrommel-Peripherie 2.1 im Greiferkanal, so dass ein Greifen der Bogenhinterkante, beispielsweise mittels eines Zangengreifers, durch eine Wendetrommel 3 in der Übergabezentralen zur Wendetrommel 3 ermöglicht wird. Bevorzugt liegt das Abweisblech 18 in der Parkposition 18.1 vollständig innerhalb der Speichertrommel-Peripherie 2.1 im Greiferkanal. In der dargestellten Ausführungsform liegt das Abweisblech 18 in der Parkposition 18.1 zumindest annähernd äquidistant zur Speichertrommel-Peripherie 2.1. Alternativ können aber bauraumbedingt auch andere Positionen im Greiferkanal eingenommen werden. In der Arbeitsposition 18.2 kann durch das Abweisblech 18 hingegen eine Führung von entlang der Speichertrommel-Peripherie 2.1 gleitenden Bogen in Umfangsrichtung erfolgen. Das Viergelenkgetriebe 19 als Führungsgetriebe ermöglicht gegenüber einer bloßen Schwenkbewegung des Abweisbleches 18 sowohl die Einhaltung der exakten Arbeitsposition 18.2 des Abweisbleches 18 als auch die Führung in die exakte Parkposition 18.1. Dadurch kann die Führungsfläche des Abweisbleches 18 insbesondere in der Arbeitsposition 18.2 nahezu den kompletten Greiferkanal überspannen, wenn Maximalformat eingestellt ist.In the parking position 18.1, the deflection plate 18 is within the storage drum periphery 2.1 in the gripper channel, so that a gripping the sheet trailing edge, for example by means of a pliers gripper, by a turning drum 3 in the transfer center to the turning drum 3 is made possible. In the parking position 18.1, the deflector plate 18 is preferably located completely within the storage drum periphery 2.1 in the gripper channel. In the illustrated embodiment, the deflector 18 is in parking position 18.1 at least approximately equidistant from the storage drum periphery 2.1. Alternatively, however, other positions can be taken in the gripper channel due to space constraints. In the working position 18.2, by the deflector 18, however, a guide of along the storage drum periphery 2.1 sliding arc in the circumferential direction take place. The four-bar linkage 19 as a guide gear allows against a mere pivoting movement of the Abweisbleches 18 both compliance with the exact working position 18.2 of the Abweisbleches 18 and the guide to the exact parking position 18.1. As a result, the guide surface of the deflector plate 18, in particular in the working position 18.2, can almost span the entire gripper channel when the maximum format is set.

Das Viergelenkgetriebe 19 enthält im Greiferkanal zwei bezüglich des Trommelkörpers gestellfest angeordnete Drehgelenke, an denen je eine Koppel drehbeweglich gelagert ist. Beide Koppeln sind an ihren freien Enden mit einem gemeinsamen Koppelglied drehbeweglich verbunden. Das gemeinsame Koppelglied trägt auf der radial zur Speichertrommel-Peripherie 2.1 weisenden Seite das Abweisblech 18. Das Abweisblech 18 ist dem Koppelglied bevorzugt fest zugeordnet. Über einen Antrieb kann das Koppelglied bei Bedarf angetrieben werden, so dass das Abweisblech 18 radial zur Speichertrommel 2 bewegt wird. Die der Speichertrommel-Peripherie 2.1 zugewandte Koppel ist hier in einem Drehpunkt 19.1 gelagert und über diesen Drehpunkt 19.1 hinaus verlängert. An der Verlängerung der Koppel ist eine Viergelenk-Kurvenrolle 19.2 drehbeweglich aufgenommen. Die Viergelenk-Kurvenrolle 19.2 wirkt mit einer Viergelenk-Steuerkurve 19.3 zusammen. Über Andrückmittel kann die Viergelenk-Kurvenrolle 19.2 in Anlage an der Viergelenk-Steuerkurve 19.3 gehalten werden. Über die Viergelenk-Steuerkurve 19.3 kann eine Bewegung von der Viergelenk-Kurvenrolle 19.2 über die Koppeln an das Koppelglied zur Bewegung des Abweisbleches 18 übertragen werden.The four-bar linkage 19 contains in the gripper channel two with respect to the drum body fixed to the frame arranged swivel joints, on each of which a coupling is rotatably mounted. Both couplers are rotatably connected at their free ends with a common coupling member. The common coupling member carries on the radially to the storage drum periphery 2.1 side facing the deflector 18. The deflector 18 is preferably assigned to the coupling member fixed. By way of a drive, the coupling member can be driven if necessary, so that the deflector plate 18 is moved radially to the storage drum 2. The storage drum periphery 2.1 facing coupling is mounted here in a pivot point 19.1 and extended beyond this pivot point 19.1 addition. At the extension of the coupling a four-bar cam 19.2 is received rotatably. The four-bar cam 19.2 cooperates with a four-bar cam 19.3. About Andrückmittel the four-bar cam follower 19.2 be held in contact with the four-bar cam 19.3. About the four-bar cam 19.3, a movement of the four-bar cam follower 19.2 via the coupling to the coupling member for movement of the Abweisbleches 18 are transmitted.

Die Fig. 6 zeigt ein in einem Greiferkanal einer Bogenführungstrommel angeordnetes pneumatisch beaufschlagbares Bogenführungselement. Das Bogenführungselement weist dafür zumindest eine mit den Bogen zumindest zeitweise in Kontakt tretende Öffnung auf. Das Bogenführungselement kann ein- oder mehrteilig in dem Greiferkanal angeordnet sein. Dabei kann sich ein Bogenführungselement nur teilweise oder über die gesamte Trommelbreite im Greiferkanal erstrecken. Es können auch Teilelemente des Bogenführungselementes lediglich den Kanalwänden beispielsweise zum Schutz des Greifersystems 6 und/oder der Drehsauger 17 zugeordnet sein. Das Bogenführungselement kann dabei fest im Greiferkanal angeordnet sein. Bevorzugt ist das Bogenführungselement aber bewegbar, insbesondere taktweise bewegbar, ausgeführt. Es wird bevorzugt eine Bewegung des Bogenführungselementes in radialer Richtung innerhalb des Greiferkanals und/oder aus der Peripherie der Bogenführungstrommel heraus realisiert. Es kann zusätzlich auch eine Schwenkbewegung des Bogenführungselementes, insbesondere des Abweisbleches 18, realisiert sein. Bevorzugt ist dem Bogenführungselement ein Antrieb zugeordnet, welcher das Bogenführungselement bei Bedarf bewegt. Dem Bogenführungselement ist dabei bevorzugt ein Führungsgetriebe, insbesondere ein Mehrgelenkgetriebe, bevorzugt ein Koppelgetriebe, beispielsweise ein Viergelenk, zugeordnet.The Fig. 6 shows a arranged in a gripper channel a sheet guiding drum pneumatically acted sheet guiding element. For this purpose, the sheet guiding element has at least one opening which comes into contact with the sheet at least temporarily. The sheet guiding element can be arranged in one or more parts in the gripper channel. In this case, a sheet guiding element can extend only partially or over the entire drum width in the gripper channel. It can also be assigned to the channel walls, for example, to protect the gripper system 6 and / or the rotary vacuum 17 and sub-elements of the sheet guiding element. The sheet guide element can be arranged firmly in the gripper channel. Preferably, however, the sheet guiding element is movable, in particular cyclically movable, executed. It is preferred to move the sheet guiding element in the radial direction within the gripper channel and / or out of the periphery of the sheet guiding element Bow guide drum out realized. In addition, a pivoting movement of the sheet guiding element, in particular of the deflecting plate 18, can also be realized. Preferably, a drive is assigned to the sheet guiding element, which moves the sheet guiding element as needed. The bow guide element is preferably a guide gear, in particular a multi-link gear, preferably a coupling gear, for example, a four-bar linkage assigned.

Das Bogenführungselement ist hier insbesondere als in einem Greiferkanal einer beispielsweise doppeltgroßen Speichertrommel 2 angeordnetes Abweisbleches 18 ausgeführt ist. Das Abweisblech 18 kann hier eine innerhalb der Speichertrommel-Peripherie 2.1 im Greiferkanal angeordnete Position, beispielsweise einer Parkposition 18.1, einnehmen. Das Abweisblech 18 weist eine zumindest annähernd geschlossene Führungsfläche für die Bogen auf, in der pneumatisch wirkende Öffnungen, beispielsweise Saugdüsen, angeordnet sind. Die Führungsfläche des Abweisbleches 18 ist bevorzugt entsprechend der Speichertrommel-Peripherie 2.1 gewölbt ausgeführt. Bevorzugt erstreckt sich das Abweisblech 18 über zumindest annähernd die gesamte Trommelbreite. Weiterbildend ist das Abweisblech 18 derart in Umfangsrichtung der Speichertrommel 2 ausgeführt, dass ein Greiferkanal einer auf Maximalformat eingestellten Speichertrommel 2 zumindest annähernd überdeckt wird. Bevorzugt erstreckt sich das Abweisblech 18 von den in Rotationsrichtung der Speichertrommel 2 vorauseilenden Drehsaugern 17 unmittelbar bis zu dem diesen nacheilenden Greifersystem 6 im Greiferkanal.The sheet guiding element is designed here in particular as arranged in a gripper channel of, for example, a double-sized storage drum 2 deflecting plate 18. The deflector plate 18 can here a position within the storage drum periphery 2.1 arranged in the gripper channel position, for example, a parking position 18.1 occupy. The deflection plate 18 has an at least approximately closed guide surface for the sheet in which pneumatic-acting openings, for example suction nozzles, are arranged. The guide surface of the Abweisbleches 18 is preferably carried arched according to the storage drum periphery 2.1. Preferably, the deflector 18 extends over at least approximately the entire drum width. In a further development, the deflection plate 18 is designed in the circumferential direction of the storage drum 2 such that a gripper channel of a storage drum 2 set to a maximum format is at least approximately covered. The deflection plate 18 preferably extends from the rotary suction cups 17 leading in the direction of rotation of the storage drum 2 directly to the trailing gripper system 6 in the gripper channel.

Die Drehsauger 17 sind weitere pneumatisch wirkende Elemente der Speichertrommel 2, die bevorzugt drehwinkelabhängig aktivierbar ausgebildet sind. Die pneumatischen Öffnungen des Abweisbleches 18 und die weiteren pneumatisch wirkenden Elemente, insbesondere die Drehsauger 17, der Speichertrommel 2 weisen eine gemeinsame pneumatische Leitung auf. Die gemeinsame pneumatische Leitung kann biegesteif oder flexibel ausgeführt sein und ist bevorzugt zumindest annähernd bis zum Greiferkanal der Speichertrommel 2 geführt. Die gemeinsame pneumatische Leitung steht mit mindestens einem Lufterzeuger, hier einem Sauglufterzeuger, in Verbindung. Der weiteren Mantelhälfte bzw. Bogenauflagefläche der doppeltgroßen Speichertrommel 2 ist bevorzugt ebenfalls eine gemeinsame pneumatische Leitung für das weitere Abweisblech 18 und das weitere pneumatische Element, insbesondere die unmittelbar diesem vorauseilenden Drehsauger 17, zugeordnet. Weiterbildend können auch mehrere unterschiedliche Sauglufterzeuger für die unterschiedlichen pneumatisch wirksamen Elemente der Speichertrommel 2 vorgesehen sein. Damit können den unterschiedlichen Elementen unterschiedliche Saugluftniveaus zur Verfügung gestellt werden.The rotary extractors 17 are further pneumatically acting elements of the storage drum 2, which are preferably formed depending on the angle of rotation activated. The pneumatic openings of the Abweisbleches 18 and the other pneumatically acting elements, in particular the rotary suction 17, the storage drum 2 have a common pneumatic line. The common pneumatic line can be rigid or flexible and is preferably at least approximately to the gripper channel of Storage drum 2 out. The common pneumatic line communicates with at least one air generator, in this case a suction air generator. The other shell half or sheet support surface of the double-sized storage drum 2 is preferably also a common pneumatic line for the further deflector plate 18 and the other pneumatic element, in particular the vorseilenden this forward rotary vacuum 17, assigned. Further, several different suction air generator for the different pneumatically active elements of the storage drum 2 may be provided. This allows the different elements different Saugluftniveaus be made available.

Der Speichertrommel 2 ist ein Schaltmittel zum wahlweisen pneumatischen Ansteuern des Bogenführungselementes, insbesondere des Abweisbleches 18, oder des weiteren pneumatischen Elementes, insbesondere der Drehsauger 17, zugeordnet. Das Schaltmittel kann beispielsweise in einem Greiferkanal angeordnet sein. Das Schaltmittel ist bevorzugt als Steuerventil zur Luftsteuerung ausgebildet, welches mit der gemeinsamen pneumatischen Leitung in Wirkverbindung steht. In bevorzugter Ausführungsform ist das Steuerventil ein Schwenkschieber 23, welcher durch einen Antriebshebel des Viergelenkes des gesteuerten Abweisbleches 18 bewegt wird und so die Saugluft des Abweisbleches 18 freischaltet bevor das Abweisblech 18 seine Arbeitsposition 18.2 erreicht hat. Der Schwenkschieber 23 hat beispielsweise zwei Arbeitsstellungen zur Versorgung zweier pneumatischer Wirkelemente, hier neben dem Abweisblech 18 die Drehsauger 17. Weiterbildend können weitere pneumatische Elemente der Speichertrommel 2 der gemeinsamen pneumatischen Leitung zugeordnet werden und entsprechend einzeln oder gruppenweise nacheinander versorgt werden.The storage drum 2 is a switching means for selectively controlling the pneumatic sheet guiding element, in particular the Abweisbleches 18, or the other pneumatic element, in particular the rotary vacuum 17, assigned. The switching means may be arranged for example in a gripper channel. The switching means is preferably designed as a control valve for air control, which is in operative connection with the common pneumatic line. In a preferred embodiment, the control valve is a pivoting slide 23, which is moved by a drive lever of the four-bar linkage of the controlled Abweisbleches 18 and so releases the suction air of the Abweisbleches 18 before the deflector 18 has reached its working position 18.2. The pivoting slide 23 has, for example, two working positions for supplying two pneumatic active elements, here next to the deflector 18, the rotary vacuum 17. Further education further pneumatic elements of the storage drum 2 of the common pneumatic line can be assigned and be supplied individually or in groups successively.

In der dargestellten Ausführungsform ist die gemeinsame Leitung zur pneumatischen Versorgung der verschiedenen Elemente bis zu mindestens einem beispielsweise mittig angeordneten Saugluftanschluss 20 angeordnet. Bevorzugt werden mehrere, beispielsweise zwei, solcher Saugluftanschlüsse 20 über die Trommelbreite angeordnet. Diese Saugluftanschlüsse 20 sind bevorzugt baugleich ausgeführt und/oder symmetrisch zur Trommelbreite angeordnet. Ein Saugluftanschluss 20 ist benachbart zu einem Saugluftkanal 21 eines Saugsystems, beispielsweise der Drehsauger 17, einerseits und benachbart zu einem Saugluftkanal 22 des Abweisbleches 18 andererseits angeordnet. Der Saugluftanschluss 20 und die Saugluftkanäle 21, 22 für das Saugsystem, insbesondere die Drehsauger 17, und das Abweisblech 18 sind hier in einer Baueinheit aufgenommen. Diese Baueinheit steht mit dem Schwenkschieber 23 in Wirkverbindung.In the illustrated embodiment, the common line for pneumatic supply of the various elements is arranged up to at least one, for example, centrally arranged suction air connection 20. Preferably, several, for example, two, such Saugluftanschlüsse 20 are arranged over the drum width. These suction air connections 20 are preferably of identical design and / or arranged symmetrically to the drum width. A suction air connection 20 is arranged adjacent to a suction air duct 21 of a suction system, for example the rotary vacuum cleaner 17, on the one hand and adjacent to a suction air duct 22 of the deflecting plate 18 on the other hand. The suction air connection 20 and the suction air ducts 21, 22 for the suction system, in particular the rotary suckers 17, and the deflector plate 18 are accommodated here in a structural unit. This unit is in operative connection with the pivot slide 23.

Der Schwenkschieber 23 weist ein Kanalstück 24 auf, das hier stets mit dem Saugluftanschluss 20 in pneumatischer Verbindung steht. Der Schwenkschieber 23 ist zwischen den mindestens zwei Arbeitsstellungen schwenkbar. Die Schwenkbewegung wird vorzugsweise durch Schwenken um eine Schwenkachse durch einen Antrieb bewirkt. In einer ersten Arbeitsstellung wird eine Saugluftversorgung zu dem Saugsystem, hier den Drehsaugern 17, hergestellt, wobei gleichzeitig eine Saugluftversorgung des Abweisbleches 18 unterbrochen ist. Das Abweisblech 18 weist hier in der im Greiferkanal befindlichen Parkposition 18.1 keine pneumatische Versorgung auf. In dieser Parkposition 18.1 kann keine Saugluft an den Saugöffnungen des Abweisbleches 18 wirken. Stattdessen ist in dieser ersten Arbeitsstellung des Schwenkschiebers 23 über das Kanalstück 24 eine pneumatische Verbindung zu den Drehsaugern 17 hergestellt. In einer zweiten Arbeitsstellung wird eine Saugluftversorgung zum Abweisblech 18 hergestellt, wobei gleichzeitig eine Saugluftversorgung des Saugsystems, insbesondere der Drehsauger 17, unterbrochen ist. Es sind weitere Stellungen denkbar, in denen andere Elemente versorgt werden oder auch gar kein Element versorgt wird. Weitere Schaltelemente können der gemeinsamen Leitung vorgeordnet sein, die die gemeinsame Saugluftversorgung beeinflussen.The pivoting slide 23 has a channel piece 24 which is always in pneumatic communication with the suction air connection 20 here. The pivoting slide 23 is pivotable between the at least two working positions. The pivotal movement is preferably effected by pivoting about a pivot axis by a drive. In a first working position, a suction air supply to the suction system, here the rotary suckers 17, produced, at the same time a suction air supply of the deflector 18 is interrupted. The deflector plate 18 has no pneumatic supply here in the parking position 18.1 located in the gripper channel. In this parking position 18.1, no suction air can act on the suction openings of the deflecting plate 18. Instead, a pneumatic connection to the rotary suckers 17 is made in this first working position of the pivoting slide 23 via the channel piece 24. In a second working position, a suction air supply to the deflector 18 is made, at the same time a Saugluftversorgung the suction system, in particular the rotary vacuum 17, is interrupted. There are other positions conceivable in which other elements are supplied or even no element is supplied. Further switching elements may be arranged upstream of the common line, which influence the common intake air supply.

Die Fig. 7 zeigt das bevorzugt durch das Viergelenk in die Arbeitsposition 18.2 gestellte Abweisblech 18, welches hier in Höhe der Speichertrommel-Peripherie 2.1 liegt. Durch das Viergelenk wird hier bevorzugt auch der Schwenkschieber 23 betätigt. Besonders bevorzugt wird der Schwenkschieber 23 in einem bezüglich des Trommelkörpers gestellfesten Drehgelenk des Viergelenkes angeordnet, beispielsweise im oben beschriebenen Drehpunkt 19.1 des Viergelenkgetriebes 19. Durch die Schwenkbewegung des Schwenkschiebers 23 hier entgegengesetzt des Uhrzeigersinnes wird durch das Kanalstück 24 des Schwenkschiebers 23 in dieser Arbeitsstellung die pneumatische Verbindung zu den Drehsaugern 17 unterbrochen und stattdessen die pneumatische Verbindung zum Abweisblech 18 hergestellt. Bevorzugt erfolgt durch die Schwenkbewegung auch die Verlagerung des Abweisbleches 18 in dessen Arbeitsposition 18.2. Weiterbildend ist auch Blasluft den pneumatisch wirksamen Elementen der Speichertrommel 2 zuführbar. In weiterer Weiterbildung werden durch Kombination mit einem Drehventil in Richtung der Lufterzeuger beide wechselseitig umgeschalteten Luftversorgungen auch mit zwei verschiedenen Lufterzeugern verbunden. Damit sind unterschiedliche Druck- bzw. Saugluftniveaus an den pneumatisch wirkenden Elementen der Speichertrommel 2 herstellbar.The Fig. 7 shows the preferred by the four-bar in the working position 18.2 Asked deflector 18, which is here in height of the storage drum periphery 2.1. By the four-bar, the pivoting slide 23 is preferably actuated here. Especially Preferably, the pivoting slide 23 is arranged in a fixed relative to the drum body hinge of the four-bar linkage, for example in the above-described pivot point 19.1 of the four-bar mechanism 19. By the pivoting movement of the pivoting slide 23 here counterclockwise is through the channel piece 24 of the pivoting slide 23 in this working position, the pneumatic connection interrupted to the rotary suckers 17 and instead made the pneumatic connection to the deflector 18. Preferably, by the pivoting movement and the displacement of the Abweisbleches 18 in its working position 18.2. Further, blown air is the pneumatic elements of the storage drum 2 can be fed. In a further development, by combining with a rotary valve in the direction of the air generators both mutually switched air supplies are also connected to two different air generators. In order for different pressure or Saugluftniveaus to the pneumatically acting elements of the storage drum 2 can be produced.

Die Umschaltung des Schaltmittels erfolgt insbesondere während der Rotation der Speichertrommel 2 in der Betriebsart Schön- und Widerdruck, wenn der zu wendende Bogen bereits von der Wendetrommel 3 ergriffen ist und während des Wendeprozesses von der Speichertrommel 2 abgezogen wird. Somit wird eine gemeinsame pneumatische Führung der Bogen durch die pneumatischen Elemente der Speichertrommel 2 und das Abweisblech 18 im Greiferkanal erzielt. Die pneumatische Führung erfolgt hier zuerst durch Saugelemente und/oder die Strecksauger, insbesondere die Drehsauger 17, der Speichertrommel 2. Die Saugelemente bzw. Drehsauger 17 können solange wirksam bleiben, wie ein Kontakt des aktuell zu wendenden Bogens mit den Saugelementen bzw. Drehsaugern 17 besteht. Bevor oder sobald durch den Wendefortschritt ein Kontakt des Bogens zu den Saugelementen bzw. Drehsaugern 17 nicht mehr besteht, werden die Saugelemente bzw. Drehsauger 17 pneumatisch wirkungslos geschalten, so dass diese keine Falschluft ziehen. Gleichzeitig wird das Abweisblech 18 pneumatisch wirksam, so dass durch dieses eine weitere Bogenführung erfolgt.The switching of the switching means takes place in particular during the rotation of the storage drum 2 in the perfecting mode when the sheet to be turned is already taken by the turning drum 3 and is subtracted from the storage drum 2 during the turning process. Thus, a common pneumatic guidance of the sheet is achieved by the pneumatic elements of the storage drum 2 and the deflector 18 in the gripper channel. The pneumatic guide takes place here first by suction and / or the stretchers, in particular the rotary vacuum 17, the storage drum 2. The suction or rotary suction 17 can remain effective as long as a contact of the current sheet to be used with the suction elements or rotary suckers 17 , Before or as soon as by the turning progress contact of the sheet to the suction elements or rotary suckers 17 no longer exists, the suction elements or rotary suction 17 are switched pneumatically ineffective, so that they pull no false air. At the same time the deflector 18 is pneumatically effective, so that there is a further bowing through this.

Die bevorzugt pneumatisch unterstützte Bogenführung durch das Abweisblech 18 wird bevorzugt solange aufrechterhalten, bis der zu wendende Bogen auch zu diesem den Kontakt verliert. Damit wird eine gemeinsame Führung der Bogen durch die Saugelemente und/oder Strecksauger, insbesondere Drehsauger 17, der Trommel und das Bogenführungselement im Greiferkanal, insbesondere das Abweisblech 18, nacheinander verwirklicht. Die Führung des Bogens erfolgt dabei durch drehwinkelabhängige Zuschaltung von Saugluft zum weiteren Element und anschließende drehwinkelabhängige Zuschaltung der Saugluft zum Bogenführungselement, insbesondere zum Abweisblech 18 durch das Schaltmittel, insbesondere das Steuerventil und bevorzugt den Schwenkschieber 23. Die pneumatische Wirkung kann reduziert oder aufgehoben werden, wenn kein Bogenkontakt mehr besteht. Insbesondere ist eine drehwinkelabhängige Abschaltung vorgesehen.The preferably pneumatically assisted bowing by the deflector 18 is preferably maintained until the sheet to be turned loses contact with it. Thus, a common leadership of the bow by the suction and / or stretchers, in particular rotary suction 17, the drum and the sheet guiding element in the gripper channel, in particular the deflector 18, one after the other realized. The guide of the bow is carried out by rotation angle-dependent connection of suction to the other element and subsequent rotation angle-dependent connection of the suction to the sheet guiding element, in particular the deflector 18 by the switching means, in particular the control valve and preferably the pivot slide 23. The pneumatic effect can be reduced or canceled if no contact with the arc exists anymore. In particular, a rotation angle-dependent shutdown is provided.

Die Fig. 8 zeigt eine Wendevorrichtung für eine bogenverarbeitende Maschine, beispielsweise wie oben beschrieben, mit einer an der Bogenführungstrommel, insbesondere Speichertrommel 2, anstellbaren Ablöseeinrichtung 25. Der Bogenführungstrommel, insbesondere Speichertrommel 2, ist ein Aushebersystem zum Abheben der Bogenvorderkante von der Bogentragfläche und zum Überführen dieser auf die Ablöseeinrichtung 25 zugeordnet. Die Wendevorrichtung ist Teil einer bogenverarbeitenden Maschine, beispielsweise einer Bogendruckmaschine, insbesondere einer Bogenoffsetrotationsdruckmaschine bevorzugt in Aggregat- und Reihenbauweise, beispielsweise wie oben beschrieben. Die Wendevorrichtung ist hier als Drei-Trommel-Wendung mit einer beispielsweise doppeltgroßen Übergabetrommel 1, einer als doppeltgroße Speichertrommel 2 ausgebildeten Bogenführungstrommel und einer einfachgroßen Wendetrommel 3 ausgeführt. Die Übergabetrommel 1 weist bogentragende Mantelflächen auf und ist hier einem Druckzylinder 4 eines vorgeordneten Druckwerkes nachgeordnet. Der Speichertrommel 2 ist zusätzlich bevorzugt aber alternativ zu einem Bogenführungselement im Greiferkanal die Ablöseeinrichtung 25 zur Speicherung eines Bogens während des Wendeprozesses zugeordnet. Die Ablöseeinrichtung 25 ist beispielsweise als Leitrakel ausgebildet und weist bevorzugt pneumatische Elemente zum Führen des Bogens an der Oberfläche.The Fig. 8 shows a turning device for a sheet-processing machine, for example, as described above, with an engageable on the sheet guiding drum, in particular storage drum 2, detaching device 25. The sheet guiding drum, in particular storage drum 2, is a lifter system for lifting the sheet leading edge of the sheet support surface and for transferring them to the Removal device 25 assigned. The turning device is part of a sheet-processing machine, for example a sheet-fed printing press, in particular a sheet-fed offset rotary printing press preferably in aggregate and series construction, for example as described above. The turning device is designed here as a three-drum turn with a double-sized transfer drum 1, for example, as a double-sized storage drum 2 formed sheet guiding drum and a single-size turning drum 3. The transfer drum 1 has curved outer surfaces and is here downstream of a pressure cylinder 4 of an upstream printing unit. The storage drum 2 is additionally preferred but alternative to a sheet guiding element in the gripper channel, the removal device 25 for Storing an arc assigned during the turning process. The detaching device 25 is formed, for example, as a Leitrakel and preferably has pneumatic elements for guiding the sheet on the surface.

Die Speichertrommel 2 ist beidseitig rotationsbeweglich in Seitengestellen der Maschine gelagert und enthält zwei diametral in Greiferkanälen angeordnete Greifersysteme 6. Jedes Greifersystem 6 enthält hier eine in Lagerböcken gelagerte Greiferwelle, der über die Trommelbreite die Greiferfinger fest zugeordnet sind. Die Greiferwelle wird von mindestens einem Rollenhebel über eine nicht weiter dargestellte Kurvenrolle und Kurvenscheibe angetrieben. Die Greifersysteme 6 sind an vorderen feststehenden Mantelsegmenten angeordnet, welche den vorderen Bereich eines von einem Greifersystem 6 geklemmten Bogens tragen. In Umfangsrichtung der Speichertrommel 2 beabstandet von den vorderen Mantelsegmenten sind hintere Mantelsegmente vorgesehen, welche den hinteren Bereich eines von einem Greifersystem 6 geklemmten Bogens tragen. Die hinteren Mantelsegmente sind in Umfangsrichtung der Speichertrommel 2 verlagerbar bzw. verstellbar ausgeführt, so dass Bogen unterschiedlichen Formates sowohl von den vorderen Mantelsegmenten als auch von den direkt korrespondierenden hinteren Mantelsegmenten getragen werden können. Die Mantelsegmente sind vorzugsweise derart formatverstellbar ausgeführt, dass Segmentzinken der Mantelsegmente bei Formatverstellung kammartig ineinander greifen und dabei eine bogentragende Mantelfläche bilden. Die beiden sich diametral gegenüberliegenden hinteren Mantelsegmente der doppeltgroßen Speichertrommel 2 werden bevorzugt gemeinsam zur Formatverstellung gegenüber den feststehenden vorderen Mantelsegmenten bewegt. Dabei können ein gemeinsamer Antrieb oder synchronisierte Antriebe eingesetzt werden. Die Speichertrommel 2 könnte aber auch Leitstreifen und/oder Greiferaussparungen an der Mantelfläche oder auch weitere beispielsweise mittige, bewegbare Mantelsegmente aufweisen.The storage drum 2 is rotatably supported on both sides in side frames of the machine and contains two diametrically arranged in gripper channels gripper systems 6. Each gripper system 6 here contains a stored in bearing blocks gripper shaft, which are permanently assigned to the gripper fingers on the drum width. The gripper shaft is driven by at least one roller lever via a cam roller and cam not shown. The gripper systems 6 are arranged on front fixed shell segments, which carry the front portion of a clamped by a gripper system 6 arc. In the circumferential direction of the storage drum 2 spaced from the front shell segments rear shroud segments are provided which carry the rear portion of a clamped by a gripper system 6 bow. The rear shell segments are designed to be displaceable or adjustable in the circumferential direction of the storage drum 2, so that sheets of different format can be carried by both the front shell segments and by the directly corresponding rear shell segments. The shroud segments are preferably designed to be adjustable in size such that segment tines of the shroud segments mesh with one another like a comb during format adjustment and thereby form a curved outer surface. The two diametrically opposite rear shell segments of the double-sized storage drum 2 are preferably moved together for format adjustment relative to the fixed front shell segments. In this case, a common drive or synchronized drives can be used. However, the storage drum 2 could also have guide strips and / or gripper recesses on the lateral surface or else further, for example, central, movable shell segments.

An den hier gegenüber den vorderen Mantelsegmenten verstellbaren hinteren Mantelsegmenten sind bevorzugt jeweils Saugsysteme, hier insbesondere Drehsauger 17, zur Übernahme und Führung der Bogenhinterkanten vorgesehen. Durch die Drehsauger 17 können die Bogen während des Bogentransportes von der Übergabetrommel 1 zur Wendetrommel 3 auf der Speichertrommel 2 liegend und/oder im Schön- und Widerdruck nach der Übergabezentralen längs und/oder quer gestrafft werden. Im Bereich der Übergabezentralen zwischen Speichertrommel 2 und Wendetrommel 3 wird im Schön- und Widerdruck die Saugluftzufuhr zu den Drehsaugern 17 vorzugsweise reduziert und besonders bevorzugt unterbrochen, damit die Greifer der Wendetrommel 3 die Bogenhinterkante übernehmen und insbesondere von der Speichertrommel 2 lösen können. Alternativ oder weiterbildend kann die Speichertrommel 2 weitere pneumatisch wirkende Elemente aufweisen. Solche weiteren pneumatischen Elemente können beispielsweise in der Bogentragfläche und/oder in den Greiferkanälen der Speichertrommel 2 integriert sein. Beispielsweise können die vorderen und/oder hinteren Mantelsegmente und/oder die Segmentzinken mit pneumatischen Elementen, insbesondere Saugöffnungen und/oder Nuten, versehen sein.At the here opposite the front shroud segments adjustable rear shroud segments are preferably each suction systems, in particular rotary suckers 17, provided for taking over and guiding the sheet trailing edges. Through the rotary suckers 17, the sheets during sheet transport from the transfer drum 1 to the beater 3 lying on the storage drum 2 and / or in perfecting after the transfer centers along and / or transversely tightened. In the area of the transfer centers between the storage drum 2 and the turning drum 3, the suction air supply to the rotary suckers 17 is preferably reduced and particularly preferably interrupted in perfecting pressure, so that the grippers of the turning drum 3 can take over the sheet trailing edge and in particular detach from the storage drum 2. Alternatively or further, the storage drum 2 may comprise further pneumatically acting elements. Such further pneumatic elements may for example be integrated in the sheet carrier surface and / or in the gripper channels of the storage drum 2. For example, the front and / or rear shell segments and / or the segment tines can be provided with pneumatic elements, in particular suction openings and / or grooves.

Die hier beispielsweise als Speichertrommel 2 ausgebildete Bogenführungstrommel enthält neben dem Greifersystem 6 eine weitere Bogenhalteeinrichtung, die dem Greifersystem 6 benachbart und der Bogentragfläche zugeordnet ist. Die weitere Bogenhalteeinrichtung kann dabei den feststehenden Mantelsegmenten zugeordnet sein und/oder eine separate Halterung aufweisen. Die weitere Bogenhalteeinrichtung ist insbesondere in Höhe der Peripherie der Bogenführungstrommel angeordnet und beispielsweise dem Greifersystem 6 mittelbar oder unmittelbar benachbart zugeordnet. Die weitere Bogenhalteeinrichtung ist dabei dem Greifersystem 6 in Rotationsrichtung der Bogenführungstrommel nacheilend angeordnet. Insbesondere enthält die weitere Bogenhalteeinrichtung Saugöffnungen und/oder separat ansteuerbare Haltebereiche. Bevorzugt enthält die Bogenhalteeinrichtung quer und/oder in Umfangsrichtung der Bogenführungstrommel vorzugsweise unabhängig ansteuerbare Saugöffnungen. Die weitere Bogenhalteeinrichtung kann sich dabei quer d. h. über die Trommelbreite erstrecken oder nur über einen Teilbereich der Trommel. Besonders bevorzugt ist die weitere Bogenhalteeinrichtung zumindest in den seitlichen Bereiches der Bogenführungstrommel vorgesehen, wobei eine Deaktivierung außerhalb des aktuellen Bogenformates vorgesehen sein kann.The sheet guiding drum formed here, for example, as a storage drum 2, contains, in addition to the gripper system 6, a further sheet holding device, which is associated with the gripper system 6 adjacent to the sheet support surface. The further sheet holding device can be assigned to the fixed shell segments and / or have a separate holder. The further sheet holding device is arranged in particular at the level of the periphery of the sheet guiding drum and, for example, indirectly or directly adjacent to the gripper system 6. The further sheet holding device is arranged following the gripper system 6 in the direction of rotation of the sheet guiding drum. In particular, the further sheet holding device contains suction openings and / or separately activatable holding areas. Preferably, the sheet holding device contains transversely and / or in the circumferential direction of the sheet guiding drum preferably independently controllable suction openings. The further sheet holding device can thereby extend transversely, ie over the drum width or only over a partial region of the drum. Particularly preferably, the further sheet holding device is provided at least in the lateral region of the sheet guiding drum, wherein a deactivation can be provided outside of the current sheet format.

Die weitere Bogenhalteeinrichtung ist insbesondere separat ansteuerbar, wobei bevorzugt eine drehwinkelabhängige Ansteuerung erfolgt. Alternativ kann eine vom Greifersystem 6, insbesondere von einer Öffnungsbewegung des Greifersystems 6, abhängige Ansteuerung der weiteren Bogenhalteeinrichtung erfolgen. Bei unabhängig voneinander ansteuerbaren Haltebereichen der weiteren Bogenhalteeinrichtung können diese in Umfangsrichtung der Bogenführungstrommel nacheinander angesteuert werden. So können diese Haltebereiche gemeinsam oder nacheinander aktiviert und/oder nacheinander in Abhängigkeit des Rotationsfortschrittes der Bogenführungstrommel deaktiviert werden.The further sheet holding device is in particular separately controllable, wherein preferably a rotational angle-dependent control takes place. Alternatively, a control of the further sheet holding device, which is dependent on the gripper system 6, in particular on an opening movement of the gripper system 6, can take place. In independently operable holding areas of the further sheet holding device, these can be controlled in succession in the circumferential direction of the sheet guiding drum. Thus, these holding areas can be activated together or one after the other and / or deactivated in succession as a function of the rotation progress of the sheet guiding drum.

Die Fig. 9 zeigt eine weitere Bogenhalteeinrichtung im Bereich eines Greifersystems 6 einer Bogenführungstrommel, hier insbesondere einer Speichertrommel 2. Die Speichertrommel 2 enthält dem Greifersystem 6 benachbart zugeordnete Zusatzsauger 26, die beispielsweise 0,1 bis 20 cm, bevorzugt 0,5 bis 10 cm, besonders bevorzugt 1 bis 5 cm, in Umfangsrichtung beabstandet von den Greiferaufschlägen hier in Richtung eines Greifer-Mantelsegmentes 8 angeordnet sind. Die Zusatzsauger 26 sind hier über die Trommelbreite den seitlichen Bereichen, also den den Stirnseiten zugewandten Bereichen, der Speichertrommel 2 zugeordnet. Die weitere Bogenhalteeinrichtung befindet sich damit bevorzugt zumindest in den formatvariablen Bereichen der Bogenführungstrommel, hier insbesondere der Speichertrommel 2.The Fig. 9 shows another sheet holding device in the region of a gripper system 6 a sheet guide drum, in particular a storage drum 2. The storage drum 2 includes the gripper system 6 adjacent associated auxiliary suction 26, for example 0.1 to 20 cm, preferably 0.5 to 10 cm, particularly preferably 1 up to 5 cm, spaced in the circumferential direction of the gripper cuffs here in the direction of a gripper jacket segment 8 are arranged. The auxiliary suction cups 26 are here assigned to the storage drum 2 via the drum width to the lateral areas, that is to say to the areas facing the front sides. The further sheet holding device is thus preferably located at least in the variable-format areas of the sheet guiding drum, here in particular the storage drum 2.

Die Speichertrommel 2 enthält weiter bevorzugt ein dem jeweiligen Greifersystem 6 zugeordnetes Aushebersystem, welches die vom Greifersystem 6 freigegebene Bogenvorderkante von der Bogentragfläche abhebt und dabei im Drehwinkelbereich der Ablöseeinrichtung 25 auf diese führt. Hier ist annähernd jedem Greiferfinger des Greifersystems 6 ein über die Peripherie der Speichertrommel 2 bewegbarer Ausheber 28 zugeordnet. Die Ausheber 28 können beispielsweise in radialer Richtung über die Peripherie bewegt werden und so die Bogenvorderkanten von der Bogentragfläche lösen. Die Ausheber 28 können separat angesteuert werden oder auch durch das Greifersystem 6, insbesondere durch die Öffnungsbewegung des Greifersystems 6. Die weitere Bogenhalteeinrichtung ist bevorzugt derart ausgebildet, dass die von den Aushebern 28 bei geöffneten Greiferfingern von der Bogentragfläche gelöste Bogenvorderkante im sich anschließenden Bogenbereich fixierbar ist. Über einen gewissen Drehwinkelbereich der Speichertrommel 2 wird die Bogenvorderkante nur von der weiteren Bogenhalteeinrichtung gehalten, während die Bogenvorderkante auf die Ablöseeinrichtung 25 geführt wird.The storage drum 2 further preferably contains a release system associated with the respective gripper system 6, which releases the gripper system 6 from the gripper system 6 Arch leading edge lifts off from the sheet supporting surface and thereby leads in the rotation angle range of the detaching device 25 to this. Here, almost every gripper finger of the gripper system 6 is associated with a lifter 28 movable over the periphery of the storage drum 2. For example, the lifters 28 can be moved over the periphery in the radial direction and thus release the sheet leading edges from the sheet carrier surface. The ejector 28 can be controlled separately or by the gripper system 6, in particular by the opening movement of the gripper system 6. The further sheet holding device is preferably designed such that the dissolved from the Aushebern 28 with open gripper fingers of the sheet support surface sheet leading edge in the subsequent bow area can be fixed , Over a certain rotation angle range of the storage drum 2, the sheet leading edge is held only by the further sheet holding device, while the sheet leading edge is guided on the detaching device 25.

Ein jeweiliger Bogen wird während des Wendeprozesses in der Wendevorrichtung durch eines der Greifersysteme 6 der Speichertrommel 2 an der Vorderkante geklemmt. In der Betriebsart Schön- und Widerdruck wird der zu wendende Bogen mit seiner Vorderkante voran auf der Speichertrommel 2 geführt. Bei der Wendung wird der Bogen von der Speichertrommel 2 an der Übergabezentralen zur Wendetrommel 3 vorbeigeführt, wobei auch die Zusatzsauger 26 den vorderen Bogenbereich fixieren können. Von der Speichertrommel 2 wird der Bogen bis zur Kammspitze der Ablöseeinrichtung 25 geführt. Kurz vor Erreichen der Kammspitze führt das Greifersystem 6 eine Öffnungsbewegung aus, so dass die Bogenvorderkante von den Greiferfingern freigegeben wird. Gleichzeitig kann die freigegebene Bogenvorderkante durch die Auswerfer 28 angehoben werden, so dass die Bogenvorderkante auf die Ablöseeinrichtung 25 gehoben wird. Durch die Zusatzsauger 26 wird der Bogen weitestgehend auf der Speichertrommel 2 gehalten, so dass der frei fliegende Bereich der Bogenvorderkante begrenzt ist. Die frei fliegende Länge wird insbesondere durch den Abstand zwischen den Auswerfern 28 und den jeweils aktivierten Zusatzsaugern 26 bestimmt. Ein Anspringen der definiert geführten Bogenvorderkante an die Ablöseeinrichtung 25 wird dadurch vereinfacht wird. Bevorzugt sind pneumatische Führungselemente der Ablöseeinrichtung 25 zugeordnet, die die Bogenvorderkante führen, sobald sich diese im Wirkbereich der Ablöseeinrichtung 25 befindet. Besonders bevorzugt wird die Bogenvorderkante auf der Ablöseeinrichtung 25 durch ein aerodynamisches Paradoxon bzw. mit Saugwirkung geführt.A respective sheet is clamped during the turning process in the turning device by one of the gripper systems 6 of the storage drum 2 at the front edge. In the perfecting mode, the sheet to be turned is guided with its front edge ahead on the storage drum 2. When turning the sheet is passed by the storage drum 2 at the transfer centers to the turning drum 3, wherein the auxiliary suction 26 can fix the front bow area. From the storage drum 2, the sheet is guided to the top of the removal device 25. Shortly before reaching the top of the ridge, the gripper system 6 performs an opening movement, so that the sheet leading edge is released by the gripper fingers. At the same time, the released sheet leading edge can be raised by the ejector 28, so that the sheet leading edge is lifted onto the removal device 25. By the additional suction 26, the sheet is largely kept on the storage drum 2, so that the free-flying area of the sheet leading edge is limited. The free-flying length is determined in particular by the distance between the ejectors 28 and the respective activated auxiliary suckers 26. A start of the defined guided Sheet leading edge to the removal device 25 is thereby simplified. Pneumatic guide elements are preferably associated with the detaching device 25, which guide the sheet leading edge as soon as it is in the effective range of the detaching device 25. Particularly preferably, the sheet leading edge is guided on the detaching device 25 by an aerodynamic paradox or with suction.

Der Bogen kann durch die weitere Bogenhalteeinrichtung freigegeben werden, sobald dieser zumindest teilweise von der Ablöseeinrichtung 25 geführt ist. Die Haltewirkung der weiteren Bogenhalteeinrichtung kann bogenformatabhängig, grammaturabhängig, geschwindigkeitsabhängig und/oder nach Sensorwerten einstellbar ausgeführt sein. Auch eine anliegende Saugwirkung kann einstellbar ausgeführt sein. Weiterbildend können verschiedene Haltebereiche unabhängig voneinander einstellbar sein. Insbesondere bei mehreren in Umfangsrichtung angeordneten Haltebereichen ist eine Aktivierung bzw. Deaktivierung nacheinander und/oder eine unterschiedliche Intensität der Haltewirkungen möglich. So kann ein zumindest teilweise auf der Ablöseeinrichtung 25 befindlicher Bogen von der Bogenhalteeinrichtung in Umfangsrichtung nacheinander bereichsweise freigegeben werden. Auch die Ausbildung einer in Umfangsrichtung abnehmenden Saugwirkung ist damit realisierbar.The sheet can be released by the further sheet holding device as soon as it is at least partially guided by the detaching device 25. The holding action of the further sheet holding device can be designed to be bend-format-dependent, grammatical-dependent, speed-dependent and / or adjustable according to sensor values. An adjacent suction effect can be made adjustable. Further education, different holding areas can be adjusted independently of each other. In particular, in the case of a plurality of holding regions arranged in the circumferential direction, an activation or deactivation in succession and / or a different intensity of the holding effects is possible. Thus, an arc located at least partially on the removal device 25 can be successively released in regions in the circumferential direction by the sheet holding device. The formation of a decreasing suction in the circumferential direction is thus feasible.

Während die Bogenvorderkante auf die Ablöseeinrichtung 25 geführt wird, wird der vordere Bereich des Bogens weiterhin von den Zusatzsaugern 26 an der Bogentragfläche der Speichertrommel 2 gehalten und somit definiert geführt. Der Bogen kann damit durch die Ablöseeinrichtung 25 unmittelbar von der Speichertrommel 2 übernommen werden, ohne dass der Bogen aus größerer Distanz anspringen muss. Besonders bevorzugt wirkt die Haltewirkung der weiteren Bogenhalteeinrichtung bzw. die Saugwirkung der Zusatzsauger 26, bis die Ablöseeinrichtung 25 die sichere Führung des Bogens übernommen hat. Der von der Speichertrommel 2 weitgehend auf die Ablöseeinrichtung 25 geführte Bogen wird im Anschluss von der Wendetrommel 3 an der Hinterkante erfasst. Dabei wird die noch auf der Speichertrommel 2 liegende Hinterkante des Bogens vom Greifer, insbesondere von einem Zangengreifer oder von Greifern und/oder Saugern, die schwenkbar in der rotierenden Wendetrommel 3 gelagert sind, übernommen. Der erfasste Bogen wird anschließend während des Rotationsfortschrittes der Wendetrommel 3 nach dem Prinzip der Hinterkantenwendung gewendet, so dass seine alte Hinterkante ab seiner Bewegungsumkehr zur neuen Vorderkante und die auf der Ablöseeinrichtung 25 liegende alte Vorderkante zur neuen Hinterkante wird. Der abziehende Bogen kann durch ein der Ablöseeinrichtung 25 zugeordnetes Ablöseelement 27 von der Ablöseeinrichtung 25 abgelöst werden. Das Ablöseelement 27 kann als ein gewölbter Finger oder auch als Saugwalze ausgeführt sein. Durch ein oder mehrere Ablöseelemente 27 kann der Bogen aus der Bahn des folgenden Bogens bewegt werden. Bevorzugt werden das oder die Ablöseelemente 27 getaktet aus der Ablöseeinrichtung 25 und wieder zurück bewegt. Die Bogenführung von der Speichertrommel 2 bzw. der Ablöseeinrichtung 25 zur Wendetrommel 3 kann durch zusätzliche pneumatische Bogenleitelemente unterstützt werden. Alternativ oder zusätzlich kann die weitere Bogenhalteeinrichtung auch als elektrostatische und/oder magnetische Bogenhalteeinrichtung ausgeführt sein.While the sheet leading edge is guided on the detaching device 25, the front portion of the sheet is still held by the auxiliary suction cups 26 on the sheet support surface of the storage drum 2 and thus guided defined. The sheet can thus be taken over by the detaching device 25 directly from the storage drum 2, without the bow having to jump from a greater distance. Particularly preferably, the holding action of the further sheet holding device or the suction effect of the auxiliary suction 26 acts until the removal device 25 has taken over the secure guidance of the sheet. The largely guided by the storage drum 2 to the removal device 25 sheet is detected by the turning drum 3 at the trailing edge. In this case, the lying still on the storage drum 2 trailing edge of the sheet from the gripper, in particular by a forceps gripper or grippers and / or suckers, which are pivotally mounted in the rotating beater 3, taken over. The detected sheet is then turned during the rotation progress of the turning drum 3 on the principle of trailing edge application, so that its old trailing edge from its reversal to the new leading edge and lying on the stripper 25 old leading edge to the new trailing edge. The withdrawing sheet can be detached from the detaching device 25 by a detaching element 27 associated with the detaching device 25. The release element 27 can be designed as a curved finger or as a suction roll. By one or more release elements 27, the sheet can be moved out of the path of the following sheet. Preferably, the or the detachment elements 27 are clocked from the detaching device 25 and moved back again. The sheet guide from the storage drum 2 and the removal device 25 to the turning drum 3 can be supported by additional pneumatic sheet guiding. Alternatively or additionally, the further sheet holding device can also be embodied as an electrostatic and / or magnetic sheet holding device.

In Weiterbildung kann die Ablöseeinrichtung 25 auch mit einem vorhandenen Ablöseelement 27 in Modulbauweise ausgeführt sein. Dies ermöglicht eine gemeinsame Verstellung der Ablöseeinrichtung 25 gegenüber der Bogenführungstrommel. Insbesondere kann dadurch eine seitliche Verlagerung der Ablöseeinrichtung 25 durch eine Öffnung der Maschinenseitenwand erfolgen. Eine solche Verlagerung kann zu Wartungsarbeiten genutzt werden. Auch eine Entnahme oder ein Einsetzen einer Ablöseeinrichtung 25 kann durch die Öffnung der Maschinenseitenwand erfolgen. Besonders bevorzugt werden alle Anschlüsse, insbesondere die pneumatischen Anschlüsse, der Ablöseeinrichtung 25 automatisch gekoppelt bzw. entkoppelt. Dabei sind insbesondere die Funktionselemente der Ablöseeinrichtung 25 funktionsgerecht in der Baueinheit zusammengefasst und als Rakelmodul integriert. Vorzugsweise ist das Rakelmodul im Maschinengestell gelagert, als Baueinheit komplett auf Führungen axial verschiebbar und vorzugsweise in Richtung der Bedienseite aus einer Arbeitsposition in eine Wartungsposition aus der Maschine heraus bewegbar. Vorgesehen sein können Anschläge, Halteeinrichtung und/oder Kontrolleinrichtungen für eine gesicherte Position des Rakelmoduls in der Arbeitsstellung und/oder eine Sicherungseinrichtungen zur Maschinensperrung beim Verlassen dieser Arbeitsstellung in Richtung einer Wartungsposition. Es kann ein beweglicher Träger für das Bogenhalteelemente bzw. eine Baueinheit für weitere Bogenhalteelemente vorgesehen sein, der auf Führungen im Rakelmodul gelagert und parallel zur Bogenlaufrichtung verschiebbar zur gemeinsamen Einstellung der Bogenkontaktelemente auf eine aktuelle Bogenlänge ist. Ein solcher beweglicher Träger kann mit Antrieben, einer Steuerung und/oder einer Luftversorgung für Bogenhalteelemente versehen sein. Die Baueinheit für weitere Bogenhalteelemente kann ebenfalls auf Führungen am beweglichen Träger gelagert und vorzugsweise in Richtung Bedienseite aus einer Arbeitsposition in eine Wartungsposition aus dem beweglichen Träger bzw. aus dem Rakelmodul heraus bewegbar und wahlweise entnehmbar sein. Vorgesehen sein können Anschläge, Halteeinrichtung und/oder Kontrolleinrichtungen für eine gesicherte Position der Baueinheit für die weiteren Bogenkontaktelemente in der Arbeitsstellung und/oder eine Maschinensperrung beim Verlassen der Arbeitsstellung in Richtung der Wartungsstellung. Eine Leitrakel im Rakelmodul kann um einen festen Drehpunkt schwenkbar gelagert sein. Auch für eine gesicherte Position der Leitrakel in Arbeitsstellung können Anschläge und/oder Kontrolleinrichtungen vorgesehen sein. Dabei ist die Leitrakel vorzugsweise schwenkbar in eine Wartungsstellung mit einer Maschinensicherung.In a further development, the detaching device 25 can also be designed with an existing detachment element 27 in a modular design. This allows a common adjustment of the detaching device 25 relative to the sheet guiding drum. In particular, a lateral displacement of the detaching device 25 can take place through an opening of the machine side wall. Such a shift can be used for maintenance. Also, a removal or insertion of a removal device 25 can be done through the opening of the machine side wall. With particular preference, all connections, in particular the pneumatic connections, are automatically coupled or decoupled from the detaching device 25. In particular, the functional elements of the detaching device 25 are functionally combined in the structural unit and integrated as a doctor blade module. Preferably, the doctor module is mounted in the machine frame, as a unit completely on guides axially slidably and preferably in the direction of the operating side from a working position into a maintenance position out of the machine movable. May be provided attacks, holding device and / or control devices for a secure position of the doctor module in the working position and / or a locking devices for machine locking when leaving this working position towards a maintenance position. It can be provided a movable support for the sheet holding elements or a structural unit for further sheet holding elements, which is mounted on guides in the doctor module and parallel to the sheet travel direction displaceable for common adjustment of the sheet contact elements to a current arc length. Such a movable carrier may be provided with drives, a controller and / or an air supply for sheet holding elements. The assembly for further sheet holding elements can also be mounted on guides on the movable support and preferably in the direction of the operating side from a working position into a maintenance position from the movable support or from the doctor module to be movable and optionally removable. May be provided attacks, holding device and / or control devices for a secure position of the assembly for the other sheet contact elements in the working position and / or a machine lock when leaving the working position in the direction of the maintenance position. A Leitrakel in Rakelmodul can be mounted pivotably about a fixed pivot point. Even for a secure position of the Leitrakel in working position stops and / or control devices can be provided. In this case, the Leitrakel is preferably pivotable in a maintenance position with a machine safety.

Die Fig. 10 zeigt in einer Ausführungsform eine perspektivische Ansicht einer einfachgroßen Wendetrommel 3 einer Wendevorrichtung mit Zangengreifersystem 29. Die Wendevorrichtung ist Teil einer bogenverarbeitenden Maschine, beispielsweise einer Bogendruckmaschine, insbesondere einer Bogenoffsetrotationsdruckmaschine bevorzugt in Aggregat- und Reihenbauweise, beispielsweise wie oben beschrieben. Die Wendetrommel 3 ist bevorzugt einer Speichertrommel 2 nachgeordnet, welche ein Eintauchen zumindest eines Teiles des Zangengreifersystems 29 in deren Peripherie zum Ergreifen der Bogenhinterkante im Wendebetrieb ermöglicht. Die Speichertrommel 2 kann dafür formatverstellbare Mantelsegmente und/oder umfangsseitige Leitstreifen aufweisen. Die Wendetrommel 3 ist um eine Rotationsachse drehbar in den Seitengestellen der Maschine gelagert. Das Zangengreifersystem 29 weist einen Antrieb zum Greifen und/oder Schwenken auf. Der Antrieb des Zangengreifersystems 29 ist zwischen der Betriebsart Schöndruck und der Betriebsart Schön- und Widerdruck umstellbar. Der Antrieb des Zangengreifersystems 29 wird hier bevorzugt beidseitig über Kurvenrollen realisiert.The Fig. 10 shows in one embodiment a perspective view of a single-size beater 3 of a turning device with a forceps gripper 29. The turning device is part of a sheet-processing machine, such as a sheet-fed press, in particular a sheet-fed rotary printing machine preferably in aggregate and series construction, for example as described above. The turning drum 3 is preferably downstream of a storage drum 2, which a Immersion of at least a portion of the forceps gripper system 29 in the periphery allows for gripping the trailing edge of the sheet in the reversing mode. The storage drum 2 can have format-adjustable sheath segments and / or circumferential guide strips therefor. The turning drum 3 is rotatably mounted about an axis of rotation in the side frames of the machine. The forceps gripper system 29 has a drive for gripping and / or pivoting. The drive of the forceps gripper system 29 can be switched between the operating mode Perfecting and the operating mode perfecting. The drive of the forceps gripper system 29 is here preferably realized on both sides via cam rollers.

In der Betriebsart Schöndruck führt das Zangengreifersystem 29 eine Greifbewegung zum Übernehmen einer Bogenvorderkante in der Übergabezentralen mit der vorgeordneten Speichertrommel 2 und zur Übergabe an das nachgelagert Bogentransportsystem, beispielsweise einen Druckzylinder 4, aus. In der Betriebsart Schön- und Widerdruck führt das Zangengreifersystem 29 neben der Greifbewegung eine Schwenkbewegung während des Rotationsfortschrittes der Wendetrommel 3 aus, um die in der Übergabezentralen mit der vorgeordneten Speichertrommel 2 übernommene Hinterkante als neue Vorderkante dem nachgelagerten Bogentransportsystem, beispielsweise einem Druckzylinder 4, zu übergeben. Die Wendetrommel 3 kann für den Schön- und Widerdruck bei Formateinstellung gemeinsam mit den nach der Wendevorrichtung angeordneten Werken eingestellt werden, damit das Zangengreifersystem 29 die Bogenhinterkante des aktuellen Bogenformates ergreifen kann. Die Wendetrommel 3 weist eine Bogentragfläche auf, die mindestens die Breite des größten zu verarbeitenden Bogenformates aufweist. Die Wendetrommel 3 kann auch eine eine Mantelfläche bildende Kappe aufweisen, die fest oder austauschbar ausgeführt ist. Insbesondere wird eine vollflächige Kappe in der Betriebsart Schöndruck eingesetzt. In der Betriebsart Schön- und Widerdruck kann die Kappe entfernt werden und/oder eine Wendetrommel-Mantelfläche mit Aussparungen, beispielsweise Kavernen und/oder Kanälen, zum Transport von Umgebungsluft in den einen Unterdruck aufweisenden Bereich zwischen Wendetrommel 3 und Speichertrommel 2 und dem jeweils zu wendenden Bogen vorgesehen sein.In the recto printing mode, the forceps gripper system 29 performs a gripping movement for taking over a sheet leading edge in the transfer center with the upstream storage drum 2 and for transfer to the downstream sheet transport system, such as a printing cylinder 4, from. In the perfecting mode, the forceps gripper system 29 performs in addition to the gripping movement a pivoting movement during the rotation progress of the turning drum 3 to pass in the transfer center with the upstream storage drum 2 trailing edge as a new leading edge of the downstream sheet transport system, such as a pressure cylinder 4 , The turning drum 3 can be adjusted for the perfecting format setting together with the arranged after the turning device works so that the gripper gripper system 29 can take the sheet trailing edge of the current sheet format. The turning drum 3 has an arch support surface which has at least the width of the largest sheet format to be processed. The turning drum 3 may also have a cap forming a lateral surface, which is designed to be fixed or replaceable. In particular, a full-area cap is used in the recto printing mode. In the operating mode perfecting the cap can be removed and / or a beater shell surface with recesses, such caverns and / or channels, for the transport of ambient air in the having a negative pressure area between the turning drum 3 and storage drum 2 and the respective sheet to be turned to be provided.

Das Zangengreifersystem 29 der Wendetrommel 3 weist eine in einem Greiferrohr konzentrisch gelagerten Zangengreiferwelle 34 auf, welche mindestens eine eingestochene Laufbahn 35 aufweist. Bevorzugt weist die Zangengreiferwelle 34 an mehreren und ganz bevorzugt an jeder Lagerstelle eingestochene Laufbahnen 35 auf. Weiter sind den eingestochenen Laufbahnen 35 der Zangengreiferwelle 34 geschlitzte Nadelkränze 36 zugeordnet. Über die geschlitzten Nadelkränze 36 wird die konzentrisch innerhalb des Greiferrohres angeordnete Zangengreiferwelle 34 drehbar zum Greiferrohr gelagert. Bevorzugt wird das Greiferrohr zumindest zweiteilig ausgebildet, wobei die Rohrsegmente 31 von Lagerstellen aufgenommen sind. Ein Zangengreifersystem 29 für eine mittelformatige Bogendruckmaschine kann beispielsweise fünf nebeneinander angeordnete Rohrsegmente 31 aufweisen, wobei bevorzugt jedem Rohrsegment 31 zwei Lagerstellen zugeordnet sind. Es kann jedes Rohrsegment 31 beidseitig mit einer Lagerstelle zusammenwirken. Die zwischen den äußeren Lagerstellen der Wendetrommel 3 angeordnete Lagerstellen können zwei der Rohrsegmente 31 an deren gemeinsamen Schnittstelle aufnehmen.The gripper gripping system 29 of the turning drum 3 has a gripper shaft 34 concentrically mounted in a gripper tube, which has at least one recessed track 35. Preferably, the forceps gripper shaft 34 at several, and most preferably at each bearing pierced tracks 35 on. Furthermore, the grooved raceways 35 of the tong gripper shaft 34 are associated with slotted needle rings 36. About the slotted needle rings 36 which is arranged concentrically within the gripper tube pliers gripper shaft 34 is rotatably mounted to the gripper tube. Preferably, the gripper tube is formed at least in two parts, wherein the tube segments 31 are received by bearings. A gripper gripper system 29 for a medium-sized sheet-fed press, for example, have five juxtaposed pipe segments 31, wherein each pipe segment 31 are preferably associated with two bearings. It can cooperate each tube segment 31 on both sides with a bearing point. The arranged between the outer bearing points of the turning drum 3 bearings can accommodate two of the pipe segments 31 at their common interface.

Die Verbindung zweier an einer Schnittstelle zusammenstoßender Rohrsegmente 31 des Greiferrohres erfolgt bevorzugt mittels Verbinder 37, insbesondere über Muffen. Die Rohrsegmente 31 des Greiferrohres können über die Verbinder 37 stoffschlüssig und/oder kraftschlüssig verbunden werden. Vorzugsweise weisen dabei die Verbinder 37 gehärtete Laufbahnen für die in den eingestochenen Laufbahnen 35 angeordneten Nadelkränze 36, insbesondere für die Nadeln, auf. Die beiden über einen Verbinder 37 miteinander verbundenen Rohrsegmente 31 werden im Bereich des Verbinders 37 drehbeweglich über die Nadeln des geschlitzten Nadelkranzes 36 gegenüber der Zangengreiferwelle 34 gehalten.The connection of two tube segments 31 of the gripper tube which collide at an interface is preferably effected by means of connectors 37, in particular via sleeves. The tube segments 31 of the gripper tube can be connected via the connector 37 cohesively and / or non-positively. In this case, the connectors 37 preferably have hardened raceways for the needle rims 36, in particular for the needles, arranged in the inserted raceways 35. The two tube segments 31 connected to one another via a connector 37 are held rotatably in the area of the connector 37 via the needles of the slotted needle ring 36 with respect to the forceps gripper shaft 34.

Die Herstellung des Greiferrohres erfolgt bevorzugt segmentweise, vorzugsweise ohne Wärmebehandlung. Die Verbindung der Rohrsegmente 31 des Greiferrohres mittels Verbinder 37, insbesondere Muffen, erfolgt anschließend stoffschlüssig, insbesondere durch zusammenstecken und/oder verkleben, und/oder kraftschlüssig, insbesondere durch aufschrumpfen. Die nebeneinander angeordneten Rohrsegmente 31 sind somit über die Trommelbreite verbunden und werden über Lagerstellen gegenüber der Wendetrommel 3 gelagert, während die innenliegende Zangengreiferwelle 34 durch die geschlitzten Nadelkränze 36 gegenüber den Rohrsegmenten 31, insbesondere gegenüber dem aus zusammengefügten bzw. verbundenen Rohrsegmenten 31 gebildeten Greiferrohr, drehbeweglich ist. Das aus den zusammengefügten Rohrsegmenten 31 gebildete Greiferrohr weist über die Trommelbreite, insbesondere über die Breite der Bogentragfläche, eine zumindest annähernd geschlossene Mantelfläche auf.The preparation of the gripper tube is preferably carried out in segments, preferably without heat treatment. The connection of the tube segments 31 of the gripper tube by means of connectors 37, in particular sleeves, then takes place materially, in particular by plugging and / or bonding, and / or non-positively, in particular by shrinking. The juxtaposed pipe segments 31 are thus connected over the drum width and are supported by bearing points relative to the turning drum 3, while the internal gripper shaft 34 by the slotted needle rings 36 against the pipe segments 31, in particular with respect to the gripper tube formed from joined or connected pipe segments 31 rotatably is. The gripper tube formed from the assembled pipe segments 31 has over the drum width, in particular over the width of the sheet support surface, an at least approximately closed lateral surface.

Die Fig. 11 zeigt eine perspektivische Ansicht eines Teils des Zangengreifersystems 29. Das Zangengreifersystem 29 weist ein Greiferrohr und eine innerhalb dessen koaxial gelagerte Zangengreiferwelle 34 auf. Das Greiferrohr enthält mehrere, über (nicht dargestellte) Verbinder 37 miteinander verbundenen Rohrsegmente 31. Im Bereich der Verbinder 37 ist das Greiferrohr über Zangengreifer-Lagerböcke 30 drehbeweglich in der Wendetrommel 3 aufgenommen. Gegenüber den Zangengreifer-Lagerböcken 30 ist sowohl das Greiferrohr als auch die innerhalb des Greiferrohres angeordnete Zangengreiferwelle 34 um eine Drehachse drehbar. Diese gemeinsame Drehachse liegt parallel zur Rotationsachse der Wendetrommel 3 und insbesondere konzentrisch zur Zangengreiferwelle 34 und zum Greiferrohr. Sowohl der Zangengreiferwelle 34 als auch dem Greiferrohr sind Greiferelemente zugeordnet. Am Greiferrohr ist insbesondere eine Zangengreiferhälfte angeordnet, die mit einer der Zangengreiferwelle 34 zugeordneten Zangengreiferhälfte korrespondiert bzw. einen Klemmspalt bildet. Die am Greiferrohr angeordnete Zangengreiferhälfte weist hier zueinander beabstandet angeordnete Aufschläge auf, die fest mit dem Greiferrohr verbunden sind. Bevorzugt sind hier gefederte Greiferaufschläge 33 dem Greiferrohr zugeordnet. Das Greiferrohr weist weiterhin Aussparungen auf, in denen die der Zangengreiferwelle 34 zugeordnete Zangengreiferhälfte angeordnet ist. Hier sind in den Aussparungen des Greiferrohres starre Greiferzungen 32 fest mit der innenliegenden Zangengreiferwelle 34 verbunden. Die starren Greiferzungen 32 können beispielsweise durch die Aussparungen ragend fest mit der Zangengreiferwelle 34 verbunden, beispielsweise verschraubt, werden. Die gefederten Greiferaufschläge 33 und die starren Greiferzungen 32 sind derart zueinander angeordnet, dass zwischen diesen ein Klemmspalt für Bogenkanten gebildet wird.The Fig. 11 shows a perspective view of a portion of the forceps gripper system 29. The forceps gripper system 29 has a gripper tube and a coaxially mounted inside of this clamp gripper shaft 34. The gripper tube includes a plurality of tube segments 31 connected to each other via connectors 37 (not shown). In the region of the connectors 37, the gripper tube is received in the turning drum 3 so as to be rotatable by means of pliers gripper bearing blocks 30. Compared with the pliers gripper bearing blocks 30, both the gripper tube and the gripper shaft 34 arranged inside the gripper tube can be rotated about an axis of rotation. This common axis of rotation is parallel to the axis of rotation of the turning drum 3 and in particular concentric with the tong gripper shaft 34 and the gripper tube. Both the forceps gripper shaft 34 and the gripper tube are associated with gripper elements. A gripper gripper half is in particular arranged on the gripper tube, which corresponds to a gripper gripper half associated with the gripper shaft 34 or forms a clamping gap. The forceps gripper half arranged on the gripper tube has here strikes spaced apart, which are fixedly connected to the gripper tube. Preferred are here spring-loaded gripper catches 33 associated with the gripper tube. The gripper tube further has recesses in which the forceps gripper half associated with the forceps gripper shaft 34 is arranged. Here are in the recesses of the gripper tube rigid gripper tongues 32 fixedly connected to the inner pliers gripper shaft 34. The rigid gripper tongues 32 can, for example, be fixedly connected, for example screwed, by the recesses into the forceps gripper shaft 34. The sprung gripper catches 33 and the rigid gripper tongues 32 are arranged relative to one another in such a way that a clamping gap for sheet edges is formed between them.

Die Fig. 12 zeigt einen Längsschnitt eines Ausschnittes des Zangengreifersystems 29. Die Zangengreiferwelle 34 ist um ihre Drehachse drehbeweglich innerhalb des aus Rohrsegmenten 31 bevorzugt mittels Verbinder 37 gebildeten Greiferrohres gelagert und weist die mindestens eine eingestochene Laufbahn 35 auf. In der eingestochenen Laufbahn 35 ist der geschlitzte Nadelkranz 36 eingesetzt. Die in der eingestochenen Laufbahn 35 laufenden Nadeln des geschlitzten Nadelkranzes 36 werden von einer gehärteten Lauffläche, vorzugsweise einem gehärteten hier durgehärteten Laufring 38 geführt. Im Bereich der eingestochenen Laufbahn 35 und des geschlitzten Nadelkranzes 36 ist das Greiferrohr aus den Rohrsegmenten 31 zusammengefügt und vorzugsweise mit einem Verbinder 37, beispielsweise einer Muffe, kraftschlüssig und/oder stoffschlüssig verbunden. Weiterbildend kann auch der Verbinder 37 die gehärtete, besonders bevorzugt durchgehärtete, Laufbahn für die Nadeln des geschlitzten Nadelkranzes 36 aufweisen. Der gehärtete Laufring 38 kann dafür mit dem Verbinder 37 verbunden oder kombiniert sein. Der Verbinder 37 wird weiter bevorzugt von einem Zangengreifer-Lagerbock 30 über einen weiteren Nadelkranz 39 aufgenommen. Zwischen Zangengreifer-Lagerbock 30 und Verbinder 37 sind hier beidseitig des weiteren Nadelkranzes 39 axiale Sicherungen 40 vorgesehen, die auch dichtend wirken können. Der weitere Nadelkranz 39 braucht nicht geschlitzt ausgeführt zu sein.The Fig. 12 shows a longitudinal section of a section of the forceps gripper system 29. The forceps gripper shaft 34 is rotatably mounted about its axis of rotation within the tube segments 31 preferably formed by means of connector 37 gripper tube and has the at least one recessed track 35. In the grooved raceway 35, the slotted needle ring 36 is inserted. The running in the grooved raceway 35 needles of the slotted needle ring 36 are guided by a hardened tread, preferably a hardened here durhärteten race 38. In the region of the grooved raceway 35 and the slotted needle ring 36, the gripper tube is assembled from the tube segments 31 and preferably with a connector 37, such as a sleeve, positively and / or materially connected. Further, the connector 37, the hardened, particularly preferably through-hardened, runway for the needles of the slotted needle ring 36 have. The hardened race 38 may be connected or combined with the connector 37 for this purpose. The connector 37 is further preferably received by a tong gripper bearing block 30 via another needle ring 39. Between clamp gripper bearing block 30 and connector 37 39 axial securing devices 40 are provided here on both sides of the further needle ring, which can also act sealing. The further needle ring 39 need not be slotted executed.

Aufstellung der verwendeten Bezugszeichen

1
Übergabetrommel
2
Speichertrommel
2.1
Speichertrommel-Peripherie
3
Wendetrommel
4
Druckzylinder
5
Gummizylinder
6
Greifersystem
7
Speichertrommel-Schenkel
8
Greifer-Mantelsegment
9
Sauger-Mantelsegment
10
Überbrückungsglieder
11
Traverse
12
Funktionsfläche
13
Zahnsegment
14
Zahnrad
15
Zahnrad
16
Zahnsegment
17
Drehsauger
18
Abweisblech
18.1
Parkposition
18.2
Arbeitsposition
19
Viergelenkgetriebe
19.1
Drehpunkt
19.2
Viergelenk-Kurvenrolle
19.3
Viergelenk-Steuerkurve
20
Saugluftanschluss
21
Saugluftkanal Strecksauger
22
Saugluftkanal Abweisblech
23
Schwenkschieber
24
Kanalstück
25
Ablöseeinrichtung
26
Zusatzsauger
27
Ablöseelement
28
Auswerfer
29
Zangengreifersystem
30
Zangengreifer-Lagerböcke
31
Rohrsegment
32
starre Greiferzunge
33
gefederter Greiferaufschlag
34
Zangengreiferwelle
35
eingestochene Laufbahn
36
geschlitzter Nadelkranz
37
Verbinder
38
gehärteter Laufring
39
weiterer Nadelkranz
40
axiale Sicherung
List of used reference numbers
1
Transfer drum
2
storage drum
2.1
Storage drum peripheral
3
beater
4
pressure cylinder
5
rubber cylinder
6
gripper system
7
Storage drum-leg
8th
Claw casing segment
9
Sucker casing segment
10
bridging members
11
traverse
12
functional surface
13
toothed segment
14
gear
15
gear
16
toothed segment
17
rotary suckers
18
deflector
18.1
parking position
18.2
working position
19
Four-bar linkage
19.1
pivot point
19.2
Four joint-follower
19.3
Four joint control curve
20
suction air
21
Suction-air duct stretch-suction
22
Suction duct deflection plate
23
reversible handle
24
channel piece
25
stripper
26
additional sucker
27
severance element
28
ejector
29
Pincer gripper system
30
Clip-on chuck-bearing blocks
31
pipe segment
32
rigid gripper tongue
33
Spring-loaded gripper serve
34
Pincer gripper shaft
35
engraved raceway
36
slotted needle wreath
37
Interconnects
38
hardened race
39
another needle wreath
40
axial fuse

Claims (15)

  1. A sheet-processing machine having a turning device comprising a sheet-guiding drum (2),
    wherein the sheet-guiding drum (2) has at least one gripper system (6) for securing a front edge of a sheet and
    wherein the sheet-guiding drum (2) has at least three casing segments cooperating in the circumferential direction of the sheet-guiding drum (2), said casing segments (8, 9) engaging with one another during format adjustment, wherein a front casing segment (8), a rear casing segment (9) and a middle casing segment are arranged in the circumferential direction of the sheet-guiding drum (2),
    wherein the middle casing segment has a drive and
    wherein the drive contains a gearwheel (14, 15) meshing with a gear segment (13, 16) for the middle casing segment.
  2. The sheet-processing machine according to claim 1,
    characterized
    in that the drive is configured to generate a movement of the middle casing segment relative to a casing segment (8) bearing a front sheet area and/or to a casing segment (9) bearing a rear sheet area.
  3. A sheet-processing machine having a turning device comprising a sheet-guiding drum (2),
    wherein the sheet-guiding drum (2) has at least one gripper system (6) for securing a front edge of a sheet and
    wherein the sheet-guiding drum (2) has at least three casing segments cooperating in the circumferential direction of the sheet-guiding drum (2), said casing segments (8,9) engaging with one another during format adjustment, wherein a front casing segment (8), a rear casing segment (9) and a middle casing segment are arranged in the circumferential direction of the sheet-guiding drum (2),
    wherein the middle casing segment has at least one sheet bearing surface which is arranged directly adjacent to a sheet bearing surface of the casing segment (8) bearing the one front sheet area and directly adjacent to a sheet bearing surface of the casing segment (9) bearing a rear sheet area and wherein the middle casing segment has bridging members (10) having the sheet bearing surface and at least one bridging member (10) in the axial direction of the sheet-guiding drum (2) is arranged directly adjacent with its lateral surface to a lateral surface of a segment prong of the front casing segment (8) bearing the one front sheet area and with its opposing lateral surface is arranged directly adjacent to a lateral surface of a segment prong of the rear casing segment (9) bearing the one rear sheet area.
  4. The sheet-processing machine according to claim 1, 2 and/or 3
    characterized
    in that the middle casing segment is mounted coaxially to the rotational axis of the sheet-guiding drum (2).
  5. The sheet-processing machine according to claim 1, 2, 3 and/or 4,
    characterized
    in that the middle casing segment has several sheet bearing surfaces over the width of the drum and several of these bearing surfaces are supported via a common attachment (11).
  6. The sheet-processing machine according to claim 1, 2, 3, 4 and/or 5
    characterized
    in that bridging members (10) of the middle casing segment have sheet bearing surfaces and are associated with an attachment (11) so that they can be set, adjusted and/or exchanged.
  7. The sheet-processing machine according to claim 1, 2, 3, 4, 5 and/or 6,
    characterized
    in that with one drive several casing segments (9) are jointly format adjustable at a transmission ratio deviating from one.
  8. The sheet-processing machine according to claim 1, 2, 3, 4, 5, 6 and/or 7,
    characterized
    in that a function surface (12) is assigned to a casing segment (9) bearing a rear sheet area and/or to a casing segment (8) bearing a front sheet area, said function surface having an extension in the circumferential direction and over the entire width of the sheet contact surface.
  9. The sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7 and/or 8,
    characterized
    in that at least one casing segment (9) bearing a rear sheet area has rotary suction devices (17) for securing and/or tightening of a sheet rear edge during the transport of the sheets.
  10. The sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8 and/or 9,
    characterized
    in that from one drive all casing segments (9) bearing rear sheet areas can be adjusted to the respective sheet rear edge, wherein simultaneously all middle casing segments can be adjusted between the casing segments (9) bearing the rear sheet areas and the casing segments (8) bearing the front sheet areas.
  11. A method for format adjustment of a sheet-guiding drum (2),
    wherein the sheet-guiding drum (2) has at least three casing segments cooperating in the circumferential direction of the sheet-guiding drum (2), said casing segments (8,9) engaging with one another during format adjustment, and a drive is provided for format adjustment,
    wherein a front casing segment (8), a rear casing segment (9) and a middle casing segment are arranged in the circumferential direction of the sheet-guiding drum (2),
    wherein the middle casing segment is driven during format adjustment and
    wherein a sheet bearing surface of the middle casing segment during format adjustment glides along directly adjacent on a sheet bearing surface of the casing segment (8) bearing the one front sheet area and directly adjacent on a sheet bearing surface of the casing segment (9) bearing the one rear sheet area.
  12. The method according to claim 11,
    characterized
    in that the middle casing segment is jointly displaced during a format adjustment with at least one casing segment (9) bearing a rear sheet area, wherein a movement of the middle casing segment takes place via a transmission.
  13. The method according to claim 11 and/or 12,
    characterized
    in that the middle casing segment is jointly displaced during a format adjustment with a casing segment (9) bearing a rear sheet area at a transmission ratio deviating from one.
  14. The method according to claim 11, 12 and/or 13,
    characterized
    in that at least one casing segment (9) bearing a rear sheet area and/or one rear edge suction system is adjusted to the respective sheet rear edge.
  15. The method according to claim 11, 12, 13 and/or 14,
    characterized
    in that during the sheet transport sheets are tightened by the sheet-guiding drum (2) in the longitudinal direction and/or axially.
EP16717920.9A 2015-05-27 2016-04-20 Turning device in a sheet-processing machine comprising a sheet-guiding drum, and method for adjusting the format of a sheet-guiding drum Active EP3224048B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015209695.5A DE102015209695B4 (en) 2015-05-27 2015-05-27 Sheet guide cylinder and method for adjusting the size of a sheet guide cylinder
PCT/EP2016/058799 WO2016188679A1 (en) 2015-05-27 2016-04-20 Turning device in a sheet-processing machine comprising a sheet-guiding drum, and method for adjusting the format of a sheet-guiding drum

Publications (2)

Publication Number Publication Date
EP3224048A1 EP3224048A1 (en) 2017-10-04
EP3224048B1 true EP3224048B1 (en) 2019-03-06

Family

ID=55806338

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Application Number Title Priority Date Filing Date
EP16717920.9A Active EP3224048B1 (en) 2015-05-27 2016-04-20 Turning device in a sheet-processing machine comprising a sheet-guiding drum, and method for adjusting the format of a sheet-guiding drum

Country Status (5)

Country Link
US (1) US10046932B2 (en)
EP (1) EP3224048B1 (en)
CN (1) CN107835747B (en)
DE (1) DE102015209695B4 (en)
WO (1) WO2016188679A1 (en)

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DE102019118568A1 (en) 2019-07-09 2021-01-14 Koenig & Bauer Ag Sheet processing machine with a turning device and method for conveying sheets
CN110366930B (en) * 2019-07-31 2021-06-11 山东省农业机械科学研究院 Green Chinese onion harvester clamping and conveying mechanism
EP4096929B1 (en) 2020-01-30 2024-06-26 Bobst Bielefeld GmbH Printing machine and method of operating a printing machine

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Also Published As

Publication number Publication date
WO2016188679A1 (en) 2016-12-01
EP3224048A1 (en) 2017-10-04
US10046932B2 (en) 2018-08-14
CN107835747B (en) 2019-03-22
DE102015209695B4 (en) 2020-04-16
DE102015209695A1 (en) 2016-12-01
CN107835747A (en) 2018-03-23
US20180170032A1 (en) 2018-06-21

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