EP1473126B1 - Device for trimming stacked sheets used for books - Google Patents

Device for trimming stacked sheets used for books Download PDF

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Publication number
EP1473126B1
EP1473126B1 EP20040101357 EP04101357A EP1473126B1 EP 1473126 B1 EP1473126 B1 EP 1473126B1 EP 20040101357 EP20040101357 EP 20040101357 EP 04101357 A EP04101357 A EP 04101357A EP 1473126 B1 EP1473126 B1 EP 1473126B1
Authority
EP
European Patent Office
Prior art keywords
blade holder
blade
knife
drive
lateral
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.)
Expired - Lifetime
Application number
EP20040101357
Other languages
German (de)
French (fr)
Other versions
EP1473126A2 (en
EP1473126A3 (en
Inventor
Mario Lorenzi
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1473126A2 publication Critical patent/EP1473126A2/en
Publication of EP1473126A3 publication Critical patent/EP1473126A3/en
Application granted granted Critical
Publication of EP1473126B1 publication Critical patent/EP1473126B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B26D1/09—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type with a plurality of cutting members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D11/00—Combinations of several similar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0081—Cutting on three sides, e.g. trilateral trimming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/14—Crank and pin means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2033—Including means to form or hold pile of product pieces
    • Y10T83/2037—In stacked or packed relation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4475—Tool has motion additional to cutting stroke during tool cycle
    • Y10T83/4478—Tool has additional motion during work dwell
    • Y10T83/448—Included in plural cutting cycles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8702—Clicker die press
    • Y10T83/8704—With reciprocating presser
    • Y10T83/8706—Laterally movable to selective operative positions

Definitions

  • the invention relates to a device for cutting book blocks, according to the preamble of claim 1.
  • a device of the type mentioned is used in the bookbinding industry cutting device comprising three cutting blades, namely a front blade and two side blades.
  • Such a three-knife trimmer are supplied via a feeding books, which are already tied to the back, so for example, bound book blocks or collected on a saddle stitcher stapled signatures.
  • the task of the three-knife trimmer is to cut the books on the sides and at the leading edge to the final desired format.
  • two cutting principles are distinguished, namely the cutting against a base and against a counter blade.
  • the drive of such a three-knife trimmer comprises a constant-speed permanent rotor electric motor, for.
  • a three-phase motor or DC motor with a flywheel As a three-phase motor or DC motor with a flywheel, a common drive shaft which is connectable to the electric motor via a controllable clutch or clutch-brake combination, and a plurality of uniform or non-uniform transmission gear, all of which are mechanically coupled to the common drive shaft
  • the device according to the invention is a device for trimming book blocks, the device having at least one front knife for passing a front edge trimming, the front knife being mounted on a movably mounted front knife holder, and a first side knife for performing a first side edge trimming the first side knife is mounted on a movably mounted first side knife holder and a second side knife for passing a second side edge cut, the second side knife being mounted on a movably mounted second side knife holder, the knife holders having mechanically independent individual drives.
  • This makes it possible to turn off the drive of one of the side knives, so that is cut only with a side knife, without having to make further changes to the device.
  • the device according to the invention is a device for trimming book blocks, wherein the device comprises at least one front knife for performing a front edge trimming, wherein the front knife is mounted on a movably mounted front knife holder, and a first side knife for performing a first side knife edge, wherein the first side knife is mounted on a movably mounted first side knife holder and a second side knife for passing a second side edge fence, the second side knife being mounted on a movably mounted second side knife holder, the device comprising at least one guide by at least one Knife holder along its Movement direction is guided on both sides.
  • the knife holder is one of the side knife holders, particularly advantageously all knife holders of the device according to the invention.
  • the guide consists on both sides of at least one guide surface of a low-wear material.
  • the low-wear material is PET. Due to the material properties of PET, no additional lubrication is required, as would be required, for example, with bronze guides. This reduces maintenance and eliminates a potential source of operator and book block contamination.
  • other low-wear materials can be used, as are known to those skilled in the art in large numbers.
  • At least one adjusting screw is provided assigned to at least one guide surface, by means of which the position of the guide surface in relation to the position of the knife holder can be changed.
  • it is a plurality of screws, which are advantageously arranged so that the guide surface can be optimally adjusted to the blade holder.
  • the device according to the invention is a device for trimming book blocks, the device comprising at least one front knife for performing a front edge trimming the first knife being mounted on a movably mounted first side knife holder and a second side knife for passing a second side edge cut, the second side knife being attached to the first side knife a movably mounted second side knife holder is mounted, wherein the device comprises a linkage, by means of which the knife holder are connected to a drive, wherein the linkage consists of a first coupling and a second coupling, wherein the first coupling with the knife holder, a knife holder housing and a movable rod is eccentrically connected to a drive pulley and the second coupling is connected to the blade holder housing and the knife holder.
  • first coupling and the second coupling are designed such that the distance between the contact point between the knife holder housing and knife holder is different in the first and second coupling.
  • the occurring cutting forces are reduced at the beginning, which reduces the load on the drive, the blade and the associated mechanism and thereby extends the durability of the device.
  • the device has a control which is designed so that it ends the downward movement of the knife holder upon reaching a designated cutting depth by a drive reversal.
  • the cutting depth can be varüert by determining the timing of the drive reversal, especially if the blades are already installed. For example, if an operator finds that the depth of cut is insufficient or is cut too far into the pad, the depth of cut can be changed to a simple one, for example by changing a preload, by changing over the control. If the device according to the invention has individual drives for the individual side knives in this embodiment, then the operator can easily change the cutting depth separately for each individual side knife without having to remove the knives, which means a considerable facilitation and acceleration of the set-up.
  • the device according to the invention is a device for trimming book blocks, wherein the device has at least a first side knife for performing a first side edge trimming, wherein the first side knife is attached to a movably mounted first side knife holder and a second side knife for carrying out a second side edge trimming, wherein the second side knife is attached to a movably mounted second side knife holder, wherein the side knife holders are driven and supported such that the movement of at least one of the side knife holders can be switched off by means of a control.
  • This can be e.g. achieve by providing individual drives of side knives.
  • the device according to the invention is a device for trimming book blocks with at least one first side knife for carrying out a first side edge trimming, wherein the first side knife is attached to a movably mounted first side knife holder and a second side knife for carrying out a second side knife Side edge trimming, wherein the second side knife is mounted on a movably mounted second side knife holder with first side edge trimming and second side edge trimming being made parallel to each other, the knife holders being movably mounted on knife holder housings, and the knife holder housings being horizontally slidably mounted on two mutually parallel guide rods attached to said knife holder housings Housing the device are attached, wherein it is in the guide rods in particular to guide rods with a circular cross-section ha ndelt.
  • the thus realized two-point bearing the knife holder housing provides a secure and stable guidance of the Hesserhalter and thus also the knife itself, which in turn can be achieved visually appealing trimming the book blocks.
  • both side knife holder housings are mounted on the same two mutually parallel guide rods which are fastened to the housing of the device.
  • the device has at least one drive, by means of at least one of the knife holder housing along with the attached knife holder horizontally along the guide rods is displaceable.
  • both blade holders can be moved with the drive, in particular symmetrically to the center line of the device.
  • the device has a threaded spindle parallel to at least one of the two parallel guide rods, by means of which the drive movement of the drive is converted into a horizontal movement of the knife holder housing.
  • the device comprises a controller which automatically changes the position of the side knife holder housings on the two parallel guide rods according to the dimensions of the trimmed book block.
  • At least one of the knife holder housings has a brake, by means of which the at least one knife holder housing can be fixed on at least one of the two mutually parallel guide rods.
  • the brake can decouple the stress on cutting from the spindle or other mechanism for laterally aligning the knife holder / knife holder housing. This protects the expensive and sensitive components against unnecessary wear.
  • the apparatus advantageously has a control which, by means of the brake, fixes the at least one knife holder housing on one of the two parallel guide rods before the knife holders are moved vertically.
  • the device according to the invention is a device for trimming book blocks with at least one first side knife for carrying out a first side edge trimming, wherein the first side knife is attached to a movably mounted first side knife holder and a second side knife for carrying out a second side knife Side edge trimming, wherein the second side knife is mounted on a movably mounted second side knife holder wherein the first side edge trimming and the second side edge trimming are made parallel to each other, and adjacent to each side knife is a device for pressing down the side book block edges Depressing the lateral book block edges has a pressure bar, wherein the device for depressing the book block edges is movably mounted on a side knife holder housing.
  • the device for depressing the book block edges so that together with the side knife holder housings is horizontally displaceable.
  • the hold-down is always the same distance from the knife, so that regardless of format a consistent cutting quality can be achieved.
  • the device for depressing the lateral book block edges has a drive, in particular a pneumatic drive, which drives the traverse substantially horizontally, wherein the substantially horizontal movement is converted by the toggle levers into a vertical movement of the pressure bar.
  • the vertical guide is particularly stable, by the implementation of a horizontal movement in a vertical movement by means of toggle lever, the toggle lever advantageously having a slot in which the connecting element between the toggle and rod is attached. This can prevent the harmful horizontal loads of the rods and the bearings arise. This has a positive effect on the durability of the components.
  • the pressure bar always moves parallel to the base of the book block. This is important because the book blocks do not necessarily have a constant thickness throughout the contact surface with the pressure bar, e.g. because of uneven printing or because of the book spine.
  • the device according to the invention is a device for trimming book blocks with at least one first side knife for carrying out a first side edge trimming, wherein the first side knife is attached to a movably mounted first side knife holder and a second side knife for carrying out a second side knife Side edge trimming, wherein the second side knife is mounted on a movably mounted second side knife holder with first side edge trimming and second side edge trimming parallel to each other, and between the side knives a device for depressing the book block surface, wherein the device for depressing the book block surface at least one drive, one with the Drive connected push rod and a press plate connected thereto, the book block surface depressing device further comprising a cross bar perpendicularly disposed on the push rod and parallel to the side knives and having connecting members by means of which the press plate releasably engages the push rod.
  • the device has an insertion aid for the change of the pressing plate, wherein the insertion aid has an insertion rail, which is aligned with the crossbar when changing the pressing plate. This makes it much easier for the operator to perform a press plate change by merely having to press the press plate into the insertion rail.
  • the press plate has a coupling mechanism into which an introduction rod can be coupled.
  • a coupling mechanism into which an introduction rod can be coupled.
  • These are e.g. a thread into which the insertion rod can be screwed in and out.
  • the device has a magazine with press plates of different dimensions.
  • the device advantageously comprises means for automatic press plate change.
  • the underside of the press plate has connecting elements, by means of which a press plate enlargement can be accommodated below the press plate, in particular an adhesive surface for receiving a rigid cardboard.
  • the further press plate is formed by a carton which is cut to the same positional settings of the side knives for cutting the book block.
  • the side knives are interchangeable. As a result, both the storage of the knife and in the production of the knife is cheaper. Particularly advantageous all three knives can be exchanged with each other.
  • the knife holder Long holes through which the knives are screwed by means of screws to the knife holder.
  • the method additionally comprises the following method step: f) Correction of the zero position of the knife by control-technical displacement of the zero position of the knife holder.
  • the zero position corresponds to the reversal point of the drive according to the embodiment of the device according to the invention already described above.
  • a readjustment of the knife can be achieved in seconds without a mechanical intervention in the device must be performed.
  • a suitable control and a suitable drive can be advantageously changes the Adjust the zero position by a few micrometers, so that the cutting depth can be resolved below the sheet thickness.
  • the method additionally comprises the following method step: g) attaching replacement handles to the knife before step b).
  • These change handles additionally facilitate handling of the knife for the operator.
  • the change handles are removed by the knife before the device is put into operation, e.g. unscrewed. During loose insertion, for safety reasons there is a cover over the cutting edge, which is removed before lowering into the zero position, after loosely fitting in the knife holder. This reduces the risk of injury to the knives.
  • the steps a) to e) and / or f) are performed individually for each knife of the device. This is particularly relevant for the side knives, which can now be adjusted individually.
  • a front knife holder 33 with the associated front blade 23 and two side knife holders 31, 32 with the associated side knives 21, 22 are arranged.
  • Each of the knife holders 31, 32, 33 is associated with a respective drive 91, 92, 96 and connected to a drive transmission element 93, 94, 97.
  • a controller 99 controls the drives 91, 92, 96 for the movement of the knife holder 31, 32, 33 at.
  • a book block 1 is first moved depending on the format in a first cutting position relative to the front blade 23. After performing the leading edge trimming, the book block 1 is brought to a second cutting position in relation to the two side knives. After performing the side edge cut, the book block 1 is fed out of the apparatus 100.
  • Two grippers 121, 122 are shown which transport the book block 1 into the first cutting position, into the second cutting position and into the device 100 and out of the device 100.
  • the first gripper 121 is shown twice to illustrate the cutting position.
  • the position that the first gripper 121 in FIG. 1b in the middle, is a transfer position in which the book block 1 provided with a leading edge trimming is transferred to the second gripper 122 to be brought to the second cutting position.
  • the second gripper 122 has a cleat 125, with the book block 1 can be pushed onto a display 135, while at the same time a book block 1 'is pulled into the second cutting position.
  • FIG. 1b are also parts of a knife holder 31, 32 of a side knife 21, 22 to see. Further details of the guides 50 are in the FIGS. 2a and 2b shown.
  • the knife holders 31, 32, 33 move within knife holder housings 61, 62 formed of a first knife holder housing plate 61 and a second knife holder housing plate 62, and connecting elements between the knife holder housing plates 61, 62. Within these knife holder housing plates 61, 62, the knife holders 31, 32, 33 are guided laterally by guide plates 50.
  • the guide plates 50 in a preferred embodiment are plates made of PET.
  • the position of the Guide plates 50 can be aligned by means of adjusting screws 51 which are provided on at least one side of the knife holders 31, 32, 33.
  • FIGS. 3a, 3b, 3c an embodiment of the drive transmission elements 93, 94, 97 is shown. It shows the FIG. 3b Knife holder 31, 32, 33 in a zero position of the knife 21, 22, 23, in which the knife 21, 22, 23 is just in parallel contact with a cutting pad. This also corresponds to a zero position of the knife holder 31, 32, 33.
  • FIG. 3a the knife holder 31, 32, 33, however, shown in a raised position, which serves the knife change.
  • the drive 91, 92, 96 of the knife holder 31, 32, 33 is designed for example as an electric motor which operates a drive pulley 72.
  • a rod 71 which is connected to a first coupling 69 via a connecting element 64, is driven via a connecting element 63 fastened eccentrically to the drive disk 72.
  • the first coupling 69 is connected via a connecting element 66 with the first and second knife holder housing plate 61, 62.
  • the first coupling 69 is rotatably connected via the connecting element 65 with the knife holder 31, 32, 33.
  • a second coupling 70 is rotatably attached to the first and second knife holder housing plates 61, 62 by means of a connecting element 68. At the other end, the second coupling is rotatably mounted by means of a connecting element 67 on the knife holder 31, 32, 33.
  • the first coupling 69 and the second coupling 70 are connected to the knife holder 31, 32, 33 and the knife holding housing plates 61, 62, so that the line between the connecting elements 65 and 66 of the first coupling and the connecting elements 67 and 68 of the second coupling in Are substantially parallel, but the distance between the connecting elements 67 and 68 of the second coupling is slightly larger than the distance between the connecting elements 65 and 66 of the first coupling 69.
  • the controller 99 drives the drives 91, 92, 96 in such a way that the drives 91, 92, 96 perform a drive reversal upon reaching the zero position of the knife holders 31, 32, 33 and thus the zero position of the knives 21, 22, 23.
  • control technology can influence the position of the zero position.
  • the drive for the horizontal displacement of the side knives to adapt to the format of the trimmed book block 1 is shown.
  • the side knife holders 31, 32 are fixed in the knife holder housings as described. Together with the drives 91, 92 which are fastened to the first knife holder housing plate 61, the knife holder housings are mounted horizontally displaceably on two strong guide rods 85, 86.
  • the guide rods 85 and 86 are mounted on both sides in the housing 80 of the device 100 according to the invention and thereby contribute significantly to the stability of the housing 80 at.
  • a support member 88 is mounted on half web along the guide rods 85, 86.
  • the support member 88 is also attached to the housing 80 of the device 100. Thanks to the support member 88, the diameter of the guide rods 85, 86 can be relatively small and yet sufficient stability of the housing and protection against deflection of the guide rods 85, 86 at the considerable forces that occur during cutting guaranteed.
  • each two threaded spindles 145, 146 are arranged, which are mounted on one side in each case in a support member 88, on the other side in the housing wall of the housing 80 of the device 100.
  • On the threaded spindles 145, 146 are mounted in threaded bushings 148, the knife holder housing 61, 62 attached.
  • a Thismesserverstellantrieb 141 is connected on one side of the housing 80 via a drive belt 143 with the threaded spindles 145 of a side knife holder housing 61, 62.
  • the Tomesserverstellantrieb 141 is connected to the threaded spindles 146 of the second side knife holder housing 61, 62 in connection. This allows the side knives, together with the side knife housings, to be displaced synchronously with the center of the device.
  • the two-sided leadership by the guide rods 85, 86 of the knife holder housing ensures great stability of the system and thus to clean cuts.
  • FIGS. 5a and 5b a locking device is shown with which the Knife holding housing on the guide rods 86, 86 can be determined before the cutting process is initiated.
  • a brake actuator 150 actuates a brake lever 151 which rotates an eccentric shaft 152.
  • the eccentric surface 153 is in contact with a contact block 154, which converts the radius change upon rotation of the brake lever 151 in a vertical movement, and thus brings a brake block 155 in contact with the surface of the guide rod 85, 86.
  • FIG. 6 a device is shown which presses down the book block 1 in the immediate vicinity of the knife edges 21, 22, 23, so that a smooth side or Vorderkantenberough can be performed.
  • This device is advantageously provided in the front blade 23 and in the two side blades 21, 22.
  • the pressure bar 167 is mounted with two pressure bar rods 169 in vertical guides 166. At the end of the pressure bar rods 169 drivers 169 are mounted, which are mounted in slots in knee levers 164.
  • the vertical guides 166 are bolted to the second knife holder housing plate 62.
  • the toggle 164 is also connected to the second knife holder housing plate 62 at the toggle pivot 165.
  • Both toggle 164 are connected to a crossbar 163, which is connected via a push rod extension 162 with the push rod 161, which is driven by the pressure bar drive 160.
  • the pressure bar drive 160 is, for example, a pneumatic drive. If the pressure bar drive 160 is actuated, both toggle levers 164 are simultaneously rotated via the traverse so that the pressure bar bars 169 press the pressure bar 167 vertically downwards. Through the slots 168 a horizontal component of motion is suppressed, which would lead to damage to the bearings, for example.
  • This mechanical implementation of the pneumatic drive is achieved that the pressure bar 167 is always moved parallel to the cutting surface and thus all irregularities in the thickness of the book block are eliminated.
  • FIG. 6 a device for flat pressing of the book block 1 is shown, which in more detail in the FIGS. 7a, b, c and d is shown.
  • This device serves to hold large the book block 1 when isberough and squeeze the air between the pages de book block 1 before trimming.
  • the device consists of two parts, on the one hand a device-fixed mechanism for the movement of the pressure plate 180, and the interchangeable pressure plate 180 itself.
  • the device-fixed mechanism consists of a press surface drive 170, for example a pneumatic cylinder, which drives a push rod 171.
  • the push rod 171 is connected to a crossbar 172.
  • the cross bar 172 in turn is connected to two press surface guide rods 173, which are mounted in the first and second vertical guide 174, 175.
  • the pressing plate 180 has on its upper side a front pressure plate connection element 182 and a rear pressure plate connection element 181, which can be inserted into the transverse rod 172. In the area of the front pressure plate connecting element 182, a detent 183 is provided which engages in the transverse bar 172 upon reaching the desired position of the pressure plate 180.
  • the pressing plate 181 also has an internal thread 186 into which a thread 196 of a handle 195 can be screwed.
  • the handle 195 has a handle guide 197 which is aligned with the front and rear pressure plate connection elements 181, 182.
  • the device 100 In order to be able to carry out a clean side trimming of a book block 1, it is necessary for the book block to be pressed down as far as possible over its entire surface. Since the book blocks can generally vary in their dimension from processing order to processing order, it is necessary to replace the press plate 180 format-dependent. Since the space above the book block is generally difficult to access in the second cutting position for side trimming, the device 100 according to the invention has an insertion aid 190.
  • the insertion aid 190 consists of a rail, which is connected via an insertion guide 193 with the support member 88.
  • the insertion rod 190 slides along the insertion aid guide rail 192 and can be brought into alignment with the crossbar 172 for changing the hard disk.
  • the insertion rod 190 and the cross bar 172 have the same cross section.
  • the insertion rod 190 has a nose 191 at its end, which fits into the crossbar 172. Aligned insertion rod 190 and crossbar 172, so the pressing plate 180 can be pushed by means of the handle 195 on the insertion rod 190 and to the crossbar 172 be pushed. By inserting the insertion rod 190 in the cross bar 172, the grid 183 is released. When the insertion aid 190 is again removed from the cross bar 172, the grid 183 automatically locks and thus fixes the pressing plate 180. Once the pressing plate 180 is engaged on the crossbar 172, the handle 195 can be unscrewed and the insertion aid 190 out of the area above the be moved away second cutting position.
  • the pressing plate 180 can receive a pressing plate enlargement 185 on its underside.
  • the die enlargement 185 may be a strong carton that is previously secured to the underside of the die plate 180 and then trimmed to the page trim size settings corresponding to the format settings for the subsequent book blocks.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Pile Receivers (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The device has at least a first side cutter (21) for a first side edge cut. This cutter is mounted on a movable first side cutter holder (31). A second side cutter (22) is mounted on a movable second holder (32) and the two holders have mechanically independent individual drives (91,92). The device has a guide through which at least one holder is guided both sides along its direction of movement. Independent claim describes method for setting up device by moving cutter holder into cutter change position above neutral position of holder, loosely hanging cutter in holder and lowering holder into neutral position and then lowering cutter onto cutting support and fixing cutter in neutral position.

Description

Die Erfindung betrifft eine Vorrichtung zum Zuschneiden von Buchblöcken, gemäß des Oberbegriffs des Anspruchs 1.The invention relates to a device for cutting book blocks, according to the preamble of claim 1.

Eine Vorrichtungen der genannten Art ist eine im Buchbindergewerbe eingesetzte Schneidvorrichtung, die drei Schneidmesser, nämlich ein Vordermesser und zwei Seitenmesser umfasst. Einem solchen Dreischneider werden über eine Zuführstation Bücher, zugeführt, die bereits am Rücken gebunden sind, also beispielsweise klebegebundenen Buchblöcke oder auf einem Sammelhefter zusammengetragene, geheftete Signaturen. Die Aufgabe des Dreischneiders besteht darin, die Bücher an den Seiten und an der Vorderkante auf das endgültige gewünschte Format zu schneiden. Dabei werden im Wesentlichen zwei Schneidprinzipien unterschieden, nämlich das Schneiden gegen eine Unterlage und gegen ein Gegenmesser.A device of the type mentioned is used in the bookbinding industry cutting device comprising three cutting blades, namely a front blade and two side blades. Such a three-knife trimmer are supplied via a feeding books, which are already tied to the back, so for example, bound book blocks or collected on a saddle stitcher stapled signatures. The task of the three-knife trimmer is to cut the books on the sides and at the leading edge to the final desired format. Essentially, two cutting principles are distinguished, namely the cutting against a base and against a counter blade.

Der Antrieb eines derartigen Dreischneiders umfasst einen mit konstanter Drehzahl permanent laufenden rotorischen Elektromotor, z. B. einen Drehstrommotor oder Gleichstrommotor mit einer Schwungscheibe, eine gemeinsame Antriebswelle, die mit dem Elektromotor über eine steuerbare Kupplung oder Kupplungs-Brems-Kombination verbindbar ist, sowie mehrere gleichförmig oder ungleichförmig übersetzende Getriebe, die alle mit der gemeinsamen Antriebswelle mechanisch gekoppelt sindThe drive of such a three-knife trimmer comprises a constant-speed permanent rotor electric motor, for. As a three-phase motor or DC motor with a flywheel, a common drive shaft which is connectable to the electric motor via a controllable clutch or clutch-brake combination, and a plurality of uniform or non-uniform transmission gear, all of which are mechanically coupled to the common drive shaft

Aus dem europäischen Patent EP 0 740 983 ist es bekannt, die Seitenmesser eines Dreischneiders unabhängig von dem Vordermesser für den Frontbeschnitt zu betreiben. Die Seitenmesser sind, um eine ausreichende Stabilität zu haben auf einer gemeinsamen Welle horizontal verschiebbar gelagert und werden daher stets gleichzeitig betrieben.From the European Patent EP 0 740 983 It is known to operate the side knives of a three-knife trimmer independently of the front blade for the front trim. The side knives are, in order to have sufficient stability mounted horizontally displaceable on a common shaft and are therefore always operated simultaneously.

In manchen Anwendungen ist es aber vorteilhaft, wenn nur eines der Seitenmesser schneidet. In den Vorrichtungen aus dem Stand der Technik kann diese nur dadurch erzielt werden, in dem das nicht benötigte Seitenmesser ausgebaut wird und danach wieder neu montiert und justiert wird. Dabei ist zu beachten, dass die beiden Seitenmesser zueinander präzise ausgerichtet werden, da beide die gleiche Schneidbewegung ausführen. Es wäre wünschenswert, wenn dies verbessert werden könnte.In some applications, however, it is advantageous if only one of the side cutters cuts. In the devices of the prior art, this can be achieved only in that the unneeded side knife is removed and then reassembled and adjusted. It should be noted that the two side knives to each other be precisely aligned, since both perform the same cutting motion. It would be desirable if this could be improved.

Es ist die Aufgabe der Erfindung, eine weitere Vorrichtung zum Zuschneiden von Buchblöcken zu schaffen. Diese Aufgabe wird mit Hilfe der erfindungsgemäßen Vorrichtung zum Zuschneiden von Buchblöcken mit den im Anspruch 1 genannten Merkmalen gelöst. Weitere Merkmale und Verfahrensschritte ergeben sich aus den Unteransprüchen.It is the object of the invention to provide a further device for cutting book blocks. This object is achieved by means of the inventive device for cutting book blocks with the features mentioned in claim 1. Further features and method steps emerge from the subclaims.

Demgemäss handelt es sich bei der erfindungsgemäßen Vorrichtung um eine Vorrichtung zum Beschneiden von Buchblöcken, wobei die Vorrichtung wenigstens ein Vordermesser zur Durchführung eines Vorderkantenbeschnitts aufweist, wobei das Vordermesser an einem beweglich gelagerten Vordermesserhalter angebracht ist, sowie ein erstes Seitenmesser zur Durchführung eines ersten Seitenkantenbeschnitts, wobei das erste Seitenmesser an einem beweglich gelagerten ersten Seitenmesserhalter angebracht ist und ein zweites Seitenmesser zur Durchführung eines zweiten Seitenkantenbeschnitts, wobei das zweite Seitenmesser an einem beweglich gelagerten zweiten Seitenmesserhalter angebracht ist, wobei die Messerhalter mechanisch voneinander unabhängige Einzelantriebe aufweisen. Dadurch ist es möglich, den Antrieb eines der Seitenmesser abzuschalten, so dass nur mit einem Seitenmesser beschnitten wird, ohne weitere Veränderungen an der Vorrichtung vornehmen zu müssen.Accordingly, the device according to the invention is a device for trimming book blocks, the device having at least one front knife for passing a front edge trimming, the front knife being mounted on a movably mounted front knife holder, and a first side knife for performing a first side edge trimming the first side knife is mounted on a movably mounted first side knife holder and a second side knife for passing a second side edge cut, the second side knife being mounted on a movably mounted second side knife holder, the knife holders having mechanically independent individual drives. This makes it possible to turn off the drive of one of the side knives, so that is cut only with a side knife, without having to make further changes to the device.

In einer weiteren vorteilhaften Ausführungsform handelt es sich bei der erfindungsgemäßen Vorrichtung um eine Vorrichtung zum Beschneiden von Buchblöcken, wobei die Vorrichtung wenigstens ein Vordermesser zur Durchführung eines Vorderkantenbeschnitts aufweist, wobei das Vordermesser an einem beweglich gelagerten Vordermesserhalter angebracht ist, sowie ein erstes Seitenmesser zur Durchführung eines ersten Seitenkantenbeschnitts, wobei das erste Seitenmesser an einem beweglich gelagerten ersten Seitenmesserhalter angebracht ist und ein zweites Seitenmesser zur Durchführung eines zweiten Seitenkantenbeschnitts, wobei das zweite Seitenmesser an einem beweglich gelagerten zweiten Seitenmesserhalter angebracht ist, wobei die Vorrichtung wenigstens eine Führung aufweist, vermittels der wenigstens ein Messerhalter entlang seiner Bewegungsrichtung beidseitig geführt wird. Vorteilhafterweise handelt es bei dem Messerhalter um einen der Seitenmesserhalter, besonders vorteilhaft um alle Messerhalter der erfindungsgemäßen Vorrichtung.In a further advantageous embodiment, the device according to the invention is a device for trimming book blocks, wherein the device comprises at least one front knife for performing a front edge trimming, wherein the front knife is mounted on a movably mounted front knife holder, and a first side knife for performing a first side knife edge, wherein the first side knife is mounted on a movably mounted first side knife holder and a second side knife for passing a second side edge fence, the second side knife being mounted on a movably mounted second side knife holder, the device comprising at least one guide by at least one Knife holder along its Movement direction is guided on both sides. Advantageously, the knife holder is one of the side knife holders, particularly advantageously all knife holders of the device according to the invention.

Bei gattungsgemäßen Vorrichtungen aus dem Stand der Technik, bei denen die Führungswelle mitbewegt wird, kann eine seitliche Führung der Messer oder Messerhalter nicht beidseitig geführt werden, da der dafür benötigte Raum bei der Bewegung von der Führungswelle benötigt wird. Das beidseitige Führen der Messerhalter entlang der Bewegungsrichtung beim schneiden führt einerseits zu besonders sauberen Schnitten. Bei den gattungsgemäßen Vorrichtungen aus dem Stand der Technik muss stattdessen die Führungswelle besonders stark und biegesteif ausgelegt werden, wodurch nachteilig das zu bewegende Gewicht sehr groß ist. Durch die beidseitige Führung können entsprechend auch Buchblöcke mit Dicken bis zu 6 cm mit einem vergleichsweise weniger Leistungsstarken Antrieb sauber beschnitten werden.In generic devices of the prior art, in which the guide shaft is moved, a lateral guidance of the knife or knife holder can not be performed on both sides, since the space required for the movement of the guide shaft is required. The two-sided guiding the knife holder along the direction of movement while cutting leads on the one hand to very clean cuts. In the generic devices of the prior art, instead, the guide shaft must be designed particularly strong and rigid, which adversely the weight to be moved is very large. Due to the double-sided guidance, book blocks with thicknesses of up to 6 cm can be cut with a comparatively less powerful drive.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung besteht die Führung beidseitig aus wenigstens einer Führungsfläche eines verschleißarmen Materials. Insbesondere handelt es sich bei dem verschleißarmen Material um PET. Aufgrund der Materialeigenschaften von PET ist keine zusätzliche Schmierung nötig, wie dies beispielsweise bei Bronze Führungen erforderlich wäre. Dadurch wird der Wartungsaufwand verringert und eine mögliche Quelle der Verschmutzung von Bediener und Buchblock ausgeschlossen. Alternativ können auch andere verschleißarme Materialien eingesetzt werden, wie sie dem Fachmann auf diesem Gebiet in großer Anzahl bekannt sind.In an advantageous development of the device according to the invention, the guide consists on both sides of at least one guide surface of a low-wear material. In particular, the low-wear material is PET. Due to the material properties of PET, no additional lubrication is required, as would be required, for example, with bronze guides. This reduces maintenance and eliminates a potential source of operator and book block contamination. Alternatively, other low-wear materials can be used, as are known to those skilled in the art in large numbers.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung ist wenigstens eine Stellschraube zu wenigstens einer Führungsfläche zugeordnet vorgesehen, vermittels der die Lage der Führungsfläche in Relation zur Lage des Messerhalters verändert werden kann. Vorteilhafterweise handelt es sich um eine Mehrzahl von Stellschrauben, die vorteilhafterweise so angeordnet sind, das die Führungsfläche optimal an den Messerhalter angestellt werden kann.In an advantageous development of the device according to the invention at least one adjusting screw is provided assigned to at least one guide surface, by means of which the position of the guide surface in relation to the position of the knife holder can be changed. Advantageously, it is a plurality of screws, which are advantageously arranged so that the guide surface can be optimally adjusted to the blade holder.

In einer weiteren vorteilhaften Ausführungsform handelt es sich bei der erfindungsgemäßen Vorrichtung um eine Vorrichtung zum Beschneiden von Buchblöcken, wobei die Vorrichtung wenigstens ein Vordermesser zur Durchführung eines Vorderkantenbeschnitts aufweist, wobei das Vordermesser an einem beweglich gelagerten Vordermesserhalter angebracht ist, sowie ein erstes Seitenmesser zur Durchführung eines ersten Seitenkantenbeschnitts, wobei das erste Seitenmesser an einem beweglich gelagerten ersten Seitenmesserhalter angebracht ist und ein zweites Seitenmesser zur Durchführung eines zweiten Seitenkantenbeschnitts, wobei das zweite Seitenmesser an einem beweglich gelagerten zweiten Seitenmesserhalter angebracht ist, wobei die Vorrichtung ein Gestänge aufweist, vermittels dessen die Messerhalter mit einem Antrieb verbunden sind, wobei das Gestänge aus einer ersten Koppel und einer zweiten Koppel besteht, wobei die erste Koppel mit dem Messerhalter, einem Messerhaltergehäuse und über eine bewegliche Stange exzentrisch mit einer Antriebsscheibe verbunden ist und die zweite Koppel mit dem Messerhaltergehäuse und dem Messerhalter verbunden ist. Insbesondere sind die erste Koppel und die zweite Koppel derartig ausgelegt, dass die Distanz zwischen der Kontaktstelle zwischen Messerhaltergehäuse und Messerhalter bei erster und zweiter Koppel unterschiedlich ist. Dadurch entsteht bei der Abwärtsbewegung des Messerhalters automatisch ein Schwingschnitt, bei dem das Messer zuerst an einer Seite des Buchblocks eintaucht, bei Erreichen der Unterlage aber parallel zu dieser ausgerichtet ist. Dadurch kann einerseits ein optisch ansprechender Schnitt erzielt werden, andererseits werden dadurch die Auftretenden Schneidkräfte zu Beginn reduziert, was die Belastung des Antriebs, der Messer und der dazugehörigen Mechanik verringert und dadurch die Haltbarkeit der Vorrichtung verlängert.In a further advantageous embodiment, the device according to the invention is a device for trimming book blocks, the device comprising at least one front knife for performing a front edge trimming the first knife being mounted on a movably mounted first side knife holder and a second side knife for passing a second side edge cut, the second side knife being attached to the first side knife a movably mounted second side knife holder is mounted, wherein the device comprises a linkage, by means of which the knife holder are connected to a drive, wherein the linkage consists of a first coupling and a second coupling, wherein the first coupling with the knife holder, a knife holder housing and a movable rod is eccentrically connected to a drive pulley and the second coupling is connected to the blade holder housing and the knife holder. In particular, the first coupling and the second coupling are designed such that the distance between the contact point between the knife holder housing and knife holder is different in the first and second coupling. This results in the downward movement of the knife holder automatically an oscillating cut, in which the knife first dips on one side of the book block, but is aligned parallel to this when reaching the pad. As a result, on the one hand a visually appealing cut can be achieved, on the other hand, the occurring cutting forces are reduced at the beginning, which reduces the load on the drive, the blade and the associated mechanism and thereby extends the durability of the device.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung weist die Vorrichtung eine Steuerung auf, die so ausgelegt ist, dass sie die Abwärtsbewegung des Messerhalters bei Erreichen einer vorgesehenen Schneidtiefe durch eine Antriebsumkehr beendet. Dadurch kann die Schneidtiefe durch Bestimmung des Zeitpunkts der Antriebsumkehr varüert werden, insbesondere auch dann, wenn die Messer schon eingebaut sind. Stellt ein Bediener beispielsweise fest, das die Schneidtiefe nicht ausreicht, oder zu weit in die Unterlage eingeschnitten wird, so kann durch eine Veränderung über die Steuerung die Schneidtiefe, beispielsweise durch die Änderung einer Vorspannung, auf einfache verändert werden. Weist die erfindungsgemäße Vorrichtung in dieser Ausführungsform Einzelantriebe für die einzelnen Seitenmesser auf, so kann der Bediener auf einfache Weise die Schneidtiefe für jedes einzelne Seitenmesser separat verändern, ohne die Messer ausbauen zu müssen, was eine erhebliche Erleichterung und Beschleunigung des Einrichtens bedeutet.In an advantageous development of the device according to the invention, the device has a control which is designed so that it ends the downward movement of the knife holder upon reaching a designated cutting depth by a drive reversal. Thereby, the cutting depth can be varüert by determining the timing of the drive reversal, especially if the blades are already installed. For example, if an operator finds that the depth of cut is insufficient or is cut too far into the pad, the depth of cut can be changed to a simple one, for example by changing a preload, by changing over the control. If the device according to the invention has individual drives for the individual side knives in this embodiment, then the operator can easily change the cutting depth separately for each individual side knife without having to remove the knives, which means a considerable facilitation and acceleration of the set-up.

In einer weiteren vorteilhaften Ausführungsform handelt es sich bei der erfindungsgemäßen Vorrichtung um eine Vorrichtung zum Beschneiden von Buchblöcken, wobei die Vorrichtung wenigstens ein erstes Seitenmesser zur Durchführung eines ersten Seitenkantenbeschnitts aufweist, wobei das erste Seitenmesser an einem beweglich gelagerten ersten Seitenmesserhalter angebracht ist und ein zweites Seitenmesser zur Durchführung eines zweiten Seitenkantenbeschnitts, wobei das zweite Seitenmesser an einem beweglich gelagerten zweiten Seitenmesserhalter angebracht ist, wobei die Seitenmesserhalter derartig angetrieben und gelagert sind, dass vermittels einer Steuerung die Bewegung wenigstens eines der Seitenmesserhalter abschaltbar ist. Das lässt sich z.B. durch das vorsehen von Einzelantrieben der Seitenmesser erreichen.In a further advantageous embodiment, the device according to the invention is a device for trimming book blocks, wherein the device has at least a first side knife for performing a first side edge trimming, wherein the first side knife is attached to a movably mounted first side knife holder and a second side knife for carrying out a second side edge trimming, wherein the second side knife is attached to a movably mounted second side knife holder, wherein the side knife holders are driven and supported such that the movement of at least one of the side knife holders can be switched off by means of a control. This can be e.g. achieve by providing individual drives of side knives.

In einer weiteren vorteilhaften Ausführungsform handelt es sich bei der erfindungsgemäßen Vorrichtung um eine Vorrichtung zum Beschneiden von Buchblöcken mit wenigstens einem ersten Seitenmesser zur Durchführung eines ersten Seitenkantenbeschnitts, wobei das erste Seitenmesser an einem beweglich gelagerten ersten Seitenmesserhalter angebracht ist und einem zweiten Seitenmesser zur Durchführung eines zweiten Seitenkantenbeschnitts, wobei das zweite Seitenmesser an einem beweglich gelagerten zweiten Seitenmesserhalter angebracht ist wobei erster Seitenkantenbeschnitts und zweiter Seitenkantenbeschnitts parallel zueinander ausgeführt werden, wobei die Messerhalter an Messerhaltergehäusen beweglich befestigt sind, und die Messerhaltergehäuse horizontal verschiebbar auf zwei zueinander parallelen Führungsstangen gelagert sind, die an dem Gehäuse der Vorrichtung befestigt sind, wobei es sich bei den Führungsstangen insbesondere um Führungstangen mit kreisförmigen Querschnitt handelt. Dadurch kann eine große Stabilität des gesamten Rahmens der Vorrichtung erreicht werden. Außerdem bietet die dadurch realisierte Zweipunktlagerung der Messerhaltergehäuse eine sichere und stabile Führung der Hesserhalter und damit auch der Messer selbst, wodurch wiederum ein optisch ansprechender Beschnitt der Buchblöcke erreicht werden kann.In a further advantageous embodiment, the device according to the invention is a device for trimming book blocks with at least one first side knife for carrying out a first side edge trimming, wherein the first side knife is attached to a movably mounted first side knife holder and a second side knife for carrying out a second side knife Side edge trimming, wherein the second side knife is mounted on a movably mounted second side knife holder with first side edge trimming and second side edge trimming being made parallel to each other, the knife holders being movably mounted on knife holder housings, and the knife holder housings being horizontally slidably mounted on two mutually parallel guide rods attached to said knife holder housings Housing the device are attached, wherein it is in the guide rods in particular to guide rods with a circular cross-section ha ndelt. Thereby, a great stability of the entire frame of the device can be achieved. In addition, the thus realized two-point bearing the knife holder housing provides a secure and stable guidance of the Hesserhalter and thus also the knife itself, which in turn can be achieved visually appealing trimming the book blocks.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung sind beide Seitenmesserhaltergehäuse an denselben zwei zueinander parallelen Führungsstangen gelagert sind, die an dem Gehäuse der Vorrichtung befestigt. Vorteilhafterweise weist die Vorrichtung wenigstens einen Antrieb auf, vermittels der wenigstens einer der Messerhaltergehäuse gemeinsam mit dem daran befestigten Messerhalter horizontal entlang der Führungsstangen verschiebbar ist. Vorteilhafterweise lassen sich mit dem Antrieb sogar beide Messerhalter bewegen, insbesondere symmetrisch zur Mittellinie der Vorrichtung.In an advantageous development of the device according to the invention, both side knife holder housings are mounted on the same two mutually parallel guide rods which are fastened to the housing of the device. Advantageously, the device has at least one drive, by means of at least one of the knife holder housing along with the attached knife holder horizontally along the guide rods is displaceable. Advantageously, even both blade holders can be moved with the drive, in particular symmetrically to the center line of the device.

In einer weiteren vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung weist die Vorrichtung parallel zu wenigstens einem der zwei parallelen Führungsstangen eine Gewindespindel auf, vermittels der die Antriebsbewegung des Antriebs in eine horizontale Bewegung der Messerhaltergehäuse umgesetzt wird.In a further advantageous development of the device according to the invention, the device has a threaded spindle parallel to at least one of the two parallel guide rods, by means of which the drive movement of the drive is converted into a horizontal movement of the knife holder housing.

In einer weiteren vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung umfasst die Vorrichtung eine Steuerung, die entsprechend der Abmessungen des beschnittenen Buchblocks die Position der Seitenmesserhaltergehäuse auf den zwei parallelen Führungsstangen automatisch verändert.In a further advantageous development of the device according to the invention, the device comprises a controller which automatically changes the position of the side knife holder housings on the two parallel guide rods according to the dimensions of the trimmed book block.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung weist wenigstens eines der Messerhaltergehäuse eine Bremse auf, vermittels der das wenigstens eine Messerhaltergehäuse auf wenigstens einem der zwei zueinander parallelen Führungsstangen festgesetzt werden kann. Beim Schneiden entstehen senkrecht zum Schnitt erhebliche Querkräfte. Durch die Bremse kann die Belastung beim Schneiden von der Spindel oder einem anderen Mechanismus zum seitlichen Ausrichten der Messerhalter / Messerhaltergehäuse entkoppelt werden. Dadurch werden die teueren und empfindlichen Bauteile vor unnötiger Abnutzung geschützt. Dementsprechend weist die Vorrichtung vorteilhafterweise eine Steuerung auf, die vermittels der Bremse das wenigstens eine Messerhaltergehäuse auf einem der zwei parallelen Führungsstangen festsetzt, bevor die Messerhalter vertikal bewegt werden.In an advantageous development of the device according to the invention, at least one of the knife holder housings has a brake, by means of which the at least one knife holder housing can be fixed on at least one of the two mutually parallel guide rods. When cutting arise perpendicular to the section considerable lateral forces. The brake can decouple the stress on cutting from the spindle or other mechanism for laterally aligning the knife holder / knife holder housing. This protects the expensive and sensitive components against unnecessary wear. Accordingly, the apparatus advantageously has a control which, by means of the brake, fixes the at least one knife holder housing on one of the two parallel guide rods before the knife holders are moved vertically.

In einer weiteren vorteilhaften Ausführungsform handelt es sich bei der erfindungsgemäßen Vorrichtung um eine Vorrichtung zum Beschneiden von Buchblöcken mit wenigstens einem ersten Seitenmesser zur Durchführung eines ersten Seitenkantenbeschnitts, wobei das erste Seitenmesser an einem beweglich gelagerten ersten Seitenmesserhalter angebracht ist und einem zweiten Seitenmesser zur Durchführung eines zweiten Seitenkantenbeschnitts, wobei das zweite Seitenmesser an einem beweglich gelagerten zweiten Seitenmesserhalter angebracht ist wobei erster Seitenkantenbeschnitts und zweiter Seitenkantenbeschnitts parallel zueinander ausgeführt werden, sowie neben jedem Seitenmesser eine Vorrichtung zum Niederdrücken der seitlichen Buchblockränder, wobei die Vorrichtung zum Niederdrücken der seitlichen Buchblockränder eine Pressleiste aufweist, wobei die Vorrichtung zum Niederdrücken der Buchblockränder an einem Seitenmesserhaltergehäuse beweglich befestigt ist. Vorteilhafterweise ist die Vorrichtung zum Niederdrücken der Buchblockränder, damit gemeinsam mit den Seitenmesserhaltergehäusen horizontal verschiebbar ist. Dadurch ist der Niederhalter immer gleich weit von dem Messer entfernt, so dass formatunabhängig eine gleichbleibende Schneidqualität erzielt werden kann.In a further advantageous embodiment, the device according to the invention is a device for trimming book blocks with at least one first side knife for carrying out a first side edge trimming, wherein the first side knife is attached to a movably mounted first side knife holder and a second side knife for carrying out a second side knife Side edge trimming, wherein the second side knife is mounted on a movably mounted second side knife holder wherein the first side edge trimming and the second side edge trimming are made parallel to each other, and adjacent to each side knife is a device for pressing down the side book block edges Depressing the lateral book block edges has a pressure bar, wherein the device for depressing the book block edges is movably mounted on a side knife holder housing. Advantageously, the device for depressing the book block edges, so that together with the side knife holder housings is horizontally displaceable. As a result, the hold-down is always the same distance from the knife, so that regardless of format a consistent cutting quality can be achieved.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung weist die Pressleiste an beiden Enden Stangen auf, die vertikal beweglich in Führungen gelagert sind, sowie jeweils über Kniehebel mit einer gemeinsamen Traverse verbunden sind. vorteilhafterweise weist die Vorrichtung zum Niederdrücken der seitlichen Buchblockränder einen Antrieb auf, insbesondere einen pneumatischen Antrieb, der die Traverse im wesentlichen horizontal antreibt, wobei die im Wesentlichen horizontale Bewegung von den Kniehebeln in eine vertikale Bewegung der Pressleiste umgewandelt wird. Dadurch wird die vertikale Führung besonders stabil, durch die Umsetzung einer horizontalen Bewegung in eine vertikale Bewegung mittels der Kniehebel, wobei die Kniehebel vorteilhafterweise ein Langloch aufweisen, in dem das Verbindungselement zwischen Kniehebel und Stange befestigt ist. Dadurch kann verhindert werden, das schädliche horizontale Belastungen der Stangen und der Lager entstehen. Das wirkt sich positiv auf die Haltbarkeit der Komponenten aus. Außerdem wir durch die Traverse erreicht, dass die Pressleiste sich stets parallel zu der Unterlage des Buchblocks bewegt. Dies ist daher wichtig, da die Buchblocks nicht notwendigerweise über die gesamte Kontaktfläche mit der Pressleiste eine konstante Dicke aufweist, z.B. wegen ungleichmäßiger Bedruckung oder wegen des Buchrückens.In an advantageous embodiment of the device according to the invention, the pressure bar on both ends of rods which are mounted vertically movable in guides, and are each connected via toggle lever with a common traverse. Advantageously, the device for depressing the lateral book block edges has a drive, in particular a pneumatic drive, which drives the traverse substantially horizontally, wherein the substantially horizontal movement is converted by the toggle levers into a vertical movement of the pressure bar. As a result, the vertical guide is particularly stable, by the implementation of a horizontal movement in a vertical movement by means of toggle lever, the toggle lever advantageously having a slot in which the connecting element between the toggle and rod is attached. This can prevent the harmful horizontal loads of the rods and the bearings arise. This has a positive effect on the durability of the components. In addition, we achieved by the traverse that the pressure bar always moves parallel to the base of the book block. This is important because the book blocks do not necessarily have a constant thickness throughout the contact surface with the pressure bar, e.g. because of uneven printing or because of the book spine.

In einer weiteren vorteilhaften Ausführungsform handelt es sich bei der erfindungsgemäßen Vorrichtung um eine Vorrichtung zum Beschneiden von Buchblöcken mit wenigstens einem ersten Seitenmesser zur Durchführung eines ersten Seitenkantenbeschnitts, wobei das erste Seitenmesser an einem beweglich gelagerten ersten Seitenmesserhalter angebracht ist und einem zweiten Seitenmesser zur Durchführung eines zweiten Seitenkantenbeschnitts, wobei das zweite Seitenmesser an einem beweglich gelagerten zweiten Seitenmesserhalter angebracht ist wobei erster Seitenkantenbeschnitts und zweiter Seitenkantenbeschnitts parallel zueinander ausgeführt werden, sowie zwischen den Seitenmessern eine Vorrichtung zum Niederdrücken der Buchblockfläche, wobei die Vorrichtung zum Niederdrücken der Buchblockfläche wenigstens einen Antrieb, eine mit dem Antrieb verbundene Schubstange und eine damit verbundene Pressplatte aufweist, wobei die Vorrichtung zum Niederdrücken der Buchblockfläche zudem eine Querstange aufweist, die senkrecht auf der Schubstange und parallel zu den Seitenmessern angeordnet ist und Verbindungselemente aufweist, vermittels der die Pressplatte an der Schubstange lösbar einrastet. Dadurch ist einerseits ein leichter Wechsel der Pressplatte sowie eine sichere Befestigung gewährleistet und andererseits ein schneller Wechsel der Pressplatte bei einem Formatwechsel möglich.In a further advantageous embodiment, the device according to the invention is a device for trimming book blocks with at least one first side knife for carrying out a first side edge trimming, wherein the first side knife is attached to a movably mounted first side knife holder and a second side knife for carrying out a second side knife Side edge trimming, wherein the second side knife is mounted on a movably mounted second side knife holder with first side edge trimming and second side edge trimming parallel to each other, and between the side knives a device for depressing the book block surface, wherein the device for depressing the book block surface at least one drive, one with the Drive connected push rod and a press plate connected thereto, the book block surface depressing device further comprising a cross bar perpendicularly disposed on the push rod and parallel to the side knives and having connecting members by means of which the press plate releasably engages the push rod. As a result, on the one hand a slight change of the press plate and a secure attachment ensures and on the other hand, a quick change of the press plate in a format change possible.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung weist die Vorrichtung eine Einführhilfe für den Wechsel der Pressplatte auf, wobei die Einführhilfe eine Einführschiene aufweist, die mit der Querstange beim Wechsel der Pressplatte fluchtet. Dadurch wird die Durchführung eines Pressplattenwechsels für den Bediener erheblich erleichtert, indem er die Pressplatte lediglich in die Einführschiene einhängen muss.In an advantageous development of the device according to the invention, the device has an insertion aid for the change of the pressing plate, wherein the insertion aid has an insertion rail, which is aligned with the crossbar when changing the pressing plate. This makes it much easier for the operator to perform a press plate change by merely having to press the press plate into the insertion rail.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung weist die Pressplatte einen Kopplungsmechanismus auf, in die eine Einführstange eingekoppelt werden kann. Dabei handelt es sich z.B. um ein Gewinde, in das die Einführstange ein- und ausgeschraubt werden kann.In an advantageous development of the device according to the invention, the press plate has a coupling mechanism into which an introduction rod can be coupled. These are e.g. a thread into which the insertion rod can be screwed in and out.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung weist die Vorrichtung ein Magazin mit Pressplatten unterschiedlicher Abmessungen auf. Insbesondere weist die Vorrichtung vorteilhafterweise Mittel auf zum automatischen Pressplattenwechsel.In an advantageous development of the device according to the invention, the device has a magazine with press plates of different dimensions. In particular, the device advantageously comprises means for automatic press plate change.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung weist die Unterseite der Pressplatte Verbindungselemente auf, vermittels der unterhalb der Pressplatte eine Pressplattenvergrößerung aufgenommen werden kann, insbesondere eine Klebefläche zur Aufnahme eines steifen Kartons. Insbesondere wird die weitere Pressplatte durch einen Karton gebildet, der mit denselben Positionseinstellungen der Seitenmesser zum Zuschnitt des Buchblocks zugeschnitten wird.In an advantageous development of the device according to the invention, the underside of the press plate has connecting elements, by means of which a press plate enlargement can be accommodated below the press plate, in particular an adhesive surface for receiving a rigid cardboard. In particular, the further press plate is formed by a carton which is cut to the same positional settings of the side knives for cutting the book block.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung sind die Seitenmesser untereinander austauschbar. Dadurch ist sowohl die Bevorratung der Messer als auch in der Herstellung der Messer kostengünstiger. Besonders vorteilhaft lassen sich alle drei Messer untereinander austauschen. Vorteilhaferweise weisen die Messerhalter Langlöcher, durch die die Messer vermittels Schrauben an die Messerhalter angeschraubt werden.In an advantageous development of the device according to the invention, the side knives are interchangeable. As a result, both the storage of the knife and in the production of the knife is cheaper. Particularly advantageous all three knives can be exchanged with each other. Advantageously, the knife holder Long holes through which the knives are screwed by means of screws to the knife holder.

Zudem enthält ein Verfahren zum Anbringen von einem Messer in einen Messerhalter bei einer Vorrichtung zur Beschneidung von Buchblöcken die folgenden Schritte:

  1. a) Bewegen des Messerhalters in eine Messerwechselposition oberhalb der Nullposition des Messerhalters;
  2. b) loses Einhängen des Messers in den Messerhalter;
  3. c) Absenken des Messerhalters in eine Nullposition des Messerhalters;
  4. d) Absenken des Messers auf die Schneidunterlage, der Nullposition des Messers;
  5. e) Fixieren des Messers in der Nullposition des Messers.
Der große Vorteil dieses Verfahrens besteht darin, dass die Messer direkt an die Messerhalter in der Vorrichtung eingebaut werden und nach der Justage keine weitere Justage mehr erforderlich ist. Der Justageaufwand ist bei diesem Verfahren für den Bediener besonders gering. Der Bediener muss lediglich die Messer in den Halter lose einsetzen, die exakte Justage geschieht durch das Absenken der Messerhalter auf die Nullposition, wodurch die Messer, vorteilhafterweise entlang von Langlöchern in die optimale Position geschoben werden. Insbesondere können damit auch nachgeschliffene Messer und / oder auf abgenützten Unterlagen schnell justiert werden, da die Justage durch das Eigengewicht der Messer und der Position der Unterlage vorgegeben wird. Besonders vorteilhaft lässt sich das erfindungsgemäße Verfahren mit einer Vorrichtung durchführen, die Einzelantriebe für jedes der Messer aufweist.In addition, a method of attaching a knife to a knife holder in a book trimming apparatus includes the following steps:
  1. a) moving the knife holder in a knife change position above the zero position of the knife holder;
  2. b) loose hanging the knife in the knife holder;
  3. c) lowering the knife holder to a zero position of the knife holder;
  4. d) lowering the knife onto the cutting pad, the zero position of the knife;
  5. e) fixing the knife in the zero position of the knife.
The great advantage of this method is that the knives are installed directly on the knife holder in the device and after the adjustment no further adjustment is required. The adjustment effort is particularly low for the operator in this method. The operator simply has to insert the knives loosely into the holder, the exact adjustment is done by lowering the knife holder to the zero position, whereby the knives, advantageously pushed along slots in the optimal position. In particular, also reground blades and / or worn documents can be quickly adjusted, since the adjustment is determined by the weight of the knife and the position of the pad. The method according to the invention can be carried out particularly advantageously with a device which has individual drives for each of the knives.

In einer Weiterbildung des Verfahrens umfasst das Verfahren zusätzlich folgenden Verfahrensschritt: f) Korrigieren der Nullposition des Messers durch steuerungstechnische Verschiebung der Nullposition des Messerhaltcrs. Vorteilhafterweise entspricht die Nullposition dem Umkehrpunkt des Antriebs entsprechend der oben bereits beschriebenen Ausführungsform der erfindungsgemäßen Vorrichtung. Dadurch lässt sich in sekundenschnelle eine Nachjustierung der Messer erzielen, ohne das ein mechanischer Eingriff in die Vorrichtung durchgeführt werden muss. Bei einer geeigneten Ansteuerung und einem geeigneten Antrieb lassen sich vorteilhafterweise Veränderungen der Nullposition um wenige Mikrometer einstellen, so dass die Schneidtiefe bis unter die Blattdicke aufgelöst werden kann.In a development of the method, the method additionally comprises the following method step: f) Correction of the zero position of the knife by control-technical displacement of the zero position of the knife holder. Advantageously, the zero position corresponds to the reversal point of the drive according to the embodiment of the device according to the invention already described above. As a result, a readjustment of the knife can be achieved in seconds without a mechanical intervention in the device must be performed. With a suitable control and a suitable drive can be advantageously changes the Adjust the zero position by a few micrometers, so that the cutting depth can be resolved below the sheet thickness.

In einer Weiterbildung des Verfahrens umfasst das Verfahren zusätzlich folgenden Verfahrensschritt: g) Befestigen von Wechselgriffen an dem Messer vor dem Schritt b). Diese Wechselgriffe Erleichtern das Handhaben des Messers für den Bediener zusätzlich. Die Wechselgriffe werden von dem Messer vor Inbetriebnahme der Vorrichtung wieder entfernt, z.B. abgeschraubt. Währen des losen Einsetzens ist aus Sicherheitsgründen eine Abdeckung über der Schneide, die vor dem Absenken in die Nullposition, nach dem losen Einhängen in den Messerhalter, entfernt wird. Dadurch wird eine Verletzungsgefahr an den Messern verringert.In a further development of the method, the method additionally comprises the following method step: g) attaching replacement handles to the knife before step b). These change handles additionally facilitate handling of the knife for the operator. The change handles are removed by the knife before the device is put into operation, e.g. unscrewed. During loose insertion, for safety reasons there is a cover over the cutting edge, which is removed before lowering into the zero position, after loosely fitting in the knife holder. This reduces the risk of injury to the knives.

In einer Weiterbildung des Verfahrens werden die Schritte a) bis e) und / oder f) für jedes Messer der Vorrichtung einzeln durchgeführt. Dies ist besonders relevant für die Seitenmesser, die nun auch einzeln nachgestellt werden können.In a development of the method, the steps a) to e) and / or f) are performed individually for each knife of the device. This is particularly relevant for the side knives, which can now be adjusted individually.

Bevorzugte Ausführungsformen der erfindungsgemäßen Vorrichtung werden im folgenden unter Bezugnahme auf die Zeichnung im einzelnen näher beschrieben. Es zeigen in schematischer Darstellung:

Fig. 1a
eine schematische Darstellung der Einzelantriebe der erfindungsgemäßen Vorrichtung;
Fig. 1b
eine schematische Seitenansicht der Vorrichtung mit dem Transportpfad der Buchblöcke;
Fig. 2a
eine schematische Seitenansicht der Messerhalterführungen;
Fig. 2b
ein schematischer Querschnitt der Messerhalterführungen;
Fig. 3a
eine schematische Seitenansicht der Messerhalter und des Antriebs der Messerhalter in der Nullposition;
Fig. 3b
eine schematische Seitenansicht der Messerhalter und des Antriebs der Messerhalter in der Einhängepositon;
Fig. 3c
ein schematischer Querschnitt durch den Messerhalter und den Antriebs der Messerhalter in der Nullposition;
Fig. 4a
ein schematischer Querschnitt durch die Horizontalverschiebeeinrichtung der Messerhaltergehäuse sowie deren Antrieb;
Fig. 4b
eine schematische Seitenansicht der Horizontalverschiebeeinrichtung der Messerhaltergehäuse sowie deren Antrieb;
Fig. 4c
eine schematische Draufsicht der Horizontalverschiebeeinrichtung der Messerhaltergehäuse sowie deren Antrieb;
Fig. 5a
eine schematische Draufsicht auf die Bremse der Messerhaltergehäuse;
Fig. 5b
ein schematischer Querschnitt der Bremse der Messerhaltergehäuse;
Fig. 6
eine schematische Seitenansicht der Pressleiste sowie deren Antrieb;
Fig. 7a
ein schematischer Querschnitt der Pressplatte sowie deren Antrieb und Führung;
Fig. 7b
eine schematische Seitenansicht der Pressplatte, deren Antrieb und Führung sowie die Einführhilfe;
Fig. 7c
eine schematische Seitenansicht der Pressplatte mit eingeschraubtem Griff;
Fig. 7d
eine schematische Draufsicht der Pressplatte, deren Antrieb und Führung sowie die Einführhilfe und Griff.
Preferred embodiments of the device according to the invention are described in detail below with reference to the drawing. In a schematic representation:
Fig. 1a
a schematic representation of the individual drives of the device according to the invention;
Fig. 1b
a schematic side view of the device with the transport path of the book blocks;
Fig. 2a
a schematic side view of the knife holder guides;
Fig. 2b
a schematic cross section of the knife holder guides;
Fig. 3a
a schematic side view of the knife holder and the drive of the knife holder in the zero position;
Fig. 3b
a schematic side view of the knife holder and the drive of the knife holder in Einhängepositon;
Fig. 3c
a schematic cross section through the knife holder and the drive of the knife holder in the zero position;
Fig. 4a
a schematic cross section through the horizontal displacement device of the knife holder housing and its drive;
Fig. 4b
a schematic side view of the horizontal displacement device of the knife holder housing and its drive;
Fig. 4c
a schematic plan view of the horizontal displacement device of the knife holder housing and its drive;
Fig. 5a
a schematic plan view of the brake of the knife holder housing;
Fig. 5b
a schematic cross section of the brake of the knife holder housing;
Fig. 6
a schematic side view of the pressure bar and its drive;
Fig. 7a
a schematic cross section of the press plate and its drive and leadership;
Fig. 7b
a schematic side view of the press plate, its drive and guide and the insertion;
Fig. 7c
a schematic side view of the press plate with screwed handle;
Fig. 7d
a schematic plan view of the press plate, its drive and guide and the insertion and handle.

Die Figuren sowie deren Beschreibung beschränken sich auf die erfindungswesentlichen Elemente. Weitere, allgemein bekannte und zum Betrieb der Vorrichtung erforderliche Antriebs-, Führungs-, und/oder Steuerungsmittel und Kurvenscheiben sind nur schematisch dargestellt bzw. werden nur in allgemeiner Form beschrieben. Gleiche Bezugszeichen kennzeichnen gleiche Teile in den einzelnen Zeichnungen.The figures and their description are limited to the elements essential to the invention. Further, generally known and required for operating the device drive, guide, and / or control means and cams are only schematically shown or are described only in general terms. Like reference characters indicate like parts throughout the several drawings.

Wie in Figur 1a dargestellt, ist in einem Gehäuse 80 der Vorrichtung 100 ein Vordermesserhalter 33 mit dem zugehörigen Vordermesser 23 sowie zwei Seitenmesserhaltern 31, 32 mit den dazugehörigen Seitenmessern 21, 22 angeordnet. Jedem der Messerhalter 31, 32, 33 ist jeweils ein Antrieb 91, 92, 96 zugeordnet und mit einem Antriebsübertragungselement 93, 94, 97 verbunden. Eine Steuerung 99 steuert die Antriebe 91, 92, 96 für die Bewegung der Messerhalter 31, 32, 33 an.As in FIG. 1a is shown, in a housing 80 of the device 100, a front knife holder 33 with the associated front blade 23 and two side knife holders 31, 32 with the associated side knives 21, 22 are arranged. Each of the knife holders 31, 32, 33 is associated with a respective drive 91, 92, 96 and connected to a drive transmission element 93, 94, 97. A controller 99 controls the drives 91, 92, 96 for the movement of the knife holder 31, 32, 33 at.

Ein Buchblock 1 wird zunächst formatabhängig in eine erste Schneidposition relativ zu dem Vordermesser 23 bewegt. Nach Durchführung des Vorderkantenbeschnitts wird der Buchblock 1 in eine zweite Schneidposition in Relation zu den beiden Seitenmessern gebracht. Nach der Durchführung des Seitenkantenbeschnitts wird der Buchblock 1 aus der Vorrichtung 100 herausbefördert.A book block 1 is first moved depending on the format in a first cutting position relative to the front blade 23. After performing the leading edge trimming, the book block 1 is brought to a second cutting position in relation to the two side knives. After performing the side edge cut, the book block 1 is fed out of the apparatus 100.

In der Seitenansicht in Figur 1b sind zwei Greifer 121, 122 gezeigt, die den Buchblock 1 in die erste Schneidposition, in die zweite Schneidposition und in die Vorrichtung 100 und aus der Vorrichtung 100 transportieren. Der erste Greifer 121 ist zur Verdeutlichung der Schneidposition zwei Mal dargestellt. Die Position, die der erste Greifer 121 in Figur 1b in der Mitte einnimmt, ist eine Übergabeposition, in der der Buchblock 1, der mit einem Vorderkantenbeschnitt versehen ist, dem zweiten Greifer 122 übergeben wird, um in die zweite Schneidposition gebracht zu werden. Der zweite Greifer 122 weist eine Stoßplatte 125 auf, mit deren Buchblock 1 auf eine Auslage 135 gestoßen werden kann, während gleichzeitig ein Buchblock 1' in die zweite Schneidposition gezogen wird.In the side view in FIG. 1b Two grippers 121, 122 are shown which transport the book block 1 into the first cutting position, into the second cutting position and into the device 100 and out of the device 100. The first gripper 121 is shown twice to illustrate the cutting position. The position that the first gripper 121 in FIG. 1b in the middle, is a transfer position in which the book block 1 provided with a leading edge trimming is transferred to the second gripper 122 to be brought to the second cutting position. The second gripper 122 has a cleat 125, with the book block 1 can be pushed onto a display 135, while at the same time a book block 1 'is pulled into the second cutting position.

In Figur 1b sind ebenfalls Teile eines Messerhalters 31, 32 eines Seitenmessers 21, 22 zu sehen. Weitere Details der Führungen 50 sind in den Figuren 2a und 2b dargestellt. Die Messerhalter 31, 32, 33 bewegen sich innerhalb von Messerhaltergehäusen 61, 62, die aus einer ersten Messerhaltergehäuseplatte 61 und einer zweiten Messerhaltergehäuseplatte 62 sowie Verbindungselementen zwischen den Messerhaltergehäuseplatten 61, 62 gebildet werden. Innerhalb dieser Messerhaltergehäuseplatten 61, 62 werden die Messerhalter 31, 32, 33 seitlich durch Führungsplatten 50 geführt. Bei den Führungsplatten 50 handelt es sich in einer bevorzugten Ausführungsform um Platten aus PET. Die Position der Führungsplatten 50 kann mittels Stellschrauben 51, die wenigstens auf einer Seite der Messerhalter 31, 32, 33 vorgesehen sind, ausgerichtet werden.In FIG. 1b are also parts of a knife holder 31, 32 of a side knife 21, 22 to see. Further details of the guides 50 are in the FIGS. 2a and 2b shown. The knife holders 31, 32, 33 move within knife holder housings 61, 62 formed of a first knife holder housing plate 61 and a second knife holder housing plate 62, and connecting elements between the knife holder housing plates 61, 62. Within these knife holder housing plates 61, 62, the knife holders 31, 32, 33 are guided laterally by guide plates 50. The guide plates 50 in a preferred embodiment are plates made of PET. The position of the Guide plates 50 can be aligned by means of adjusting screws 51 which are provided on at least one side of the knife holders 31, 32, 33.

In den Figuren 3a, 3b, 3c ist eine Ausführungsform der Antriebsübertragungselemente 93, 94, 97 gezeigt. Dabei zeigt die Figur 3b Messerhalter 31, 32, 33 in einer Nullposition des Messers 21, 22, 23, bei dem das Messer 21, 22, 23 gerade in parallelem Kontakt mit einer Schneidunterlage steht. Dies entspricht auch einer Nullposition des Messerhalters 31, 32, 33. In Figur 3a ist dem Messerhalter 31, 32, 33 dagegen in einer angehobenen Position gezeigt, die dem Messerwechsel dient. Der Antrieb 91, 92, 96 der Messerhalter 31, 32, 33 ist beispielsweise als Elektromotor ausgestaltet, der eine Antriebsscheibe 72 betreibt. Über einen exzentrisch an der Antriebsscheibe 72 befestigtem Verbindungselement 63 ist eine Stange 71 angetrieben, die über ein Verbindungselement 64 mit einer ersten Koppel 69 verbunden ist. Die erste Koppel 69 ist über ein Verbindungselement 66 mit der ersten und zweiten Messerhaltergehäuseplatte 61, 62 verbunden. Zudem ist die erste Koppel 69 über das Verbindungselement 65 mit dem Messerhalter 31, 32, 33 drehbar verbunden. Eine zweite Koppel 70 ist vermittels eines Verbindungselements 68 drehbar an der ersten und zweiten Messerhaltergehäuseplatte 61, 62 befestigt. Am anderen Ende ist die zweite Koppel vermittels eines Verbindungselements 67 an dem Messerhalter 31, 32, 33 drehbar befestigt. Die erste Koppel 69 und die zweite Koppel 70 sind derart mit dem Messerhalter 31, 32, 33 und den Messerhaltegehäuseplatten 61, 62 verbunden, so dass die Linie zwischen den Verbindungselementen 65 und 66 der ersten Koppel und den Verbindungselementen 67 und 68 der zweiten Koppel im Wesentlichen parallel sind, die Entfernung zwischen den Verbindungselementen 67 und 68 der zweiten Koppel aber etwas größer ist als die Distanz zwischen den Verbindungselementen 65 und 66 der ersten Koppel 69. Dadurch ergibt es sich, dass bei einer Abwärtsbewegung das Messer 21, 22, 23 nicht parallel zu der Schneidoberfläche bewegt wird, sondern vielmehr bei einem Schneidvorgang die Schneide 21, 22, 23 mit einem Buchblock 1 nur eine Kontaktstelle auf der Oberfläche aufweist, die in den Figuren 3a und 3b gezeigten Konfigurationen nach links über den Buchblock 1 läuft.In the FIGS. 3a, 3b, 3c an embodiment of the drive transmission elements 93, 94, 97 is shown. It shows the FIG. 3b Knife holder 31, 32, 33 in a zero position of the knife 21, 22, 23, in which the knife 21, 22, 23 is just in parallel contact with a cutting pad. This also corresponds to a zero position of the knife holder 31, 32, 33. In FIG. 3a the knife holder 31, 32, 33, however, shown in a raised position, which serves the knife change. The drive 91, 92, 96 of the knife holder 31, 32, 33 is designed for example as an electric motor which operates a drive pulley 72. A rod 71, which is connected to a first coupling 69 via a connecting element 64, is driven via a connecting element 63 fastened eccentrically to the drive disk 72. The first coupling 69 is connected via a connecting element 66 with the first and second knife holder housing plate 61, 62. In addition, the first coupling 69 is rotatably connected via the connecting element 65 with the knife holder 31, 32, 33. A second coupling 70 is rotatably attached to the first and second knife holder housing plates 61, 62 by means of a connecting element 68. At the other end, the second coupling is rotatably mounted by means of a connecting element 67 on the knife holder 31, 32, 33. The first coupling 69 and the second coupling 70 are connected to the knife holder 31, 32, 33 and the knife holding housing plates 61, 62, so that the line between the connecting elements 65 and 66 of the first coupling and the connecting elements 67 and 68 of the second coupling in Are substantially parallel, but the distance between the connecting elements 67 and 68 of the second coupling is slightly larger than the distance between the connecting elements 65 and 66 of the first coupling 69. This results in that in a downward movement, the knife 21, 22, 23 not is moved parallel to the cutting surface, but rather in a cutting operation, the cutting edge 21, 22, 23 with a book block 1 only one contact point on the surface, which in the FIGS. 3a and 3b shown configurations to the left over the book block 1 runs.

An dem Messer 21, 22, 23 sind Gewindebohrungen 27 angebracht, in die nicht gezeigte Handgriffe eingeschraubt werden können. Um einen Messerwechsel durchzuführen, wird der Messerhalter 31, 32, 33 wie in Figur 3a gezeigt angehoben und die Handgriffe in die Gewindebohrung 27 eingeschraubt. Über die Schneide ist eine Schutzkappe angebracht, um eine Verletzungsgefahr beim Messewechsel zu vermeiden. Dann werden die Schrauben, mit denen die Messer 21, 22, 23 in den Langlöchern 24 mit dem Messerhalter 31, 32, 33 verschraubt sind, gelöst. Danach hängt das Messer 21, 22, 23 nur noch lose an den Handgriffen einerseits in der L-förmigen Aussparung 25 und andererseits in der taschenförmigen Aussparung 26. Durch die leichte Schräglage des Messerhalters 31, 32, 33 in der Messerwechselposition in Figur 3a drückt das Eigengewicht der Messer 21, 22, 23 die Handgriffe in die Aussparung 26, 27 ein. Durch seitliches Verschieben kann der Bediener vermittels der Handgriffe das Messer 21, 22, 23 aus dem Messerhalter 31, 32, 33 herausnehmen und ein neues Messer in die Aussparung 26, 27 lose einhängen. Als nächstes werden die Schrauben zur Befestigung des Messers 21, 22, 23 an dem Messerhalter 31, 32, 33 in mit den Langlöchern 24 fluchtenden Gewinde in die Messer 21, 22, 23 lose eingeschraubt. Nach dem Entfernen der Handgriffe hängt das Messer 21, 22, 23 damit lose an diesen Schrauben. Im Anschluss wird der Antrieb 91, 92, 96 von der Steuerung 99 derartig betätigt, dass der Messerhalter 31, 32, 33 in die Nullposition fährt, nachdem zuvor der Messerschutz von dem Messer 21, 22, 23 entfernt wurde. In der Nullposition des Messerhalters 31, 32, 33 liegt das Messer 21, 22, 23 auf der Schneidunterlage auf. Dabei nehmen die Schrauben zur Fixierung des Messers 21, 22, 23 an dem Messerhalter 31, 32, 33 automatisch ihre optimale Position innerhalb der Langlöcher 24 ein. Um den Messerwechsel zu beenden, müssen nun lediglich die Schrauben in den Langlöchern 24 festgezogen werden und damit das Messer 21, 22, 23 an dem Messerhalter 31, 32, 33 fixiert werden.On the knife 21, 22, 23 threaded holes 27 are mounted, can be screwed into the handles, not shown. To perform a knife change, the knife holder 31, 32, 33 as in FIG. 3a shown raised and screwed the handles in the threaded hole 27. A protective cap is attached over the cutting edge to avoid any risk of injury when changing the fairing. Then the screws, with where the knives 21, 22, 23 are screwed in the slots 24 with the knife holder 31, 32, 33, solved. Thereafter, the knife 21, 22, 23 depends only loosely on the handles on the one hand in the L-shaped recess 25 and on the other hand in the pocket-shaped recess 26. By the slight inclination of the knife holder 31, 32, 33 in the knife changing position in FIG. 3a pushes the weight of the blades 21, 22, 23, the handles in the recess 26, 27 a. By lateral displacement, the operator by means of the handles, the knife 21, 22, 23 remove from the knife holder 31, 32, 33 and hang a new knife into the recess 26, 27 loosely. Next, the screws for fastening the knife 21, 22, 23 on the knife holder 31, 32, 33 in the aligned with the slots 24 thread in the knives 21, 22, 23 loosely screwed. After removing the handles, the knife 21, 22, 23 hangs loose on these screws. Following this, the drive 91, 92, 96 is actuated by the controller 99 in such a way that the knife holder 31, 32, 33 moves into the zero position after the knife guard has previously been removed from the knife 21, 22, 23. In the zero position of the knife holder 31, 32, 33, the knife 21, 22, 23 rests on the cutting surface. The screws for fixing the blade 21, 22, 23 on the blade holder 31, 32, 33 automatically assume their optimal position within the elongated holes 24. To end the knife change, now only the screws must be tightened in the slots 24 and thus the knife 21, 22, 23 fixed to the blade holder 31, 32, 33.

Die Steuerung 99 treibt die Antriebe 91, 92, 96 derartig an, dass die Antriebe 91, 92, 96 bei Erreichen der Nullposition der Messerhalter 31, 32, 33 und damit der Nullposition der Messer 21, 22, 23 eine Antriebsumkehr durchführen. Dadurch kann steuerungstechnisch Einfluss auf die Lage der Nullposition genommen werden. Um die Lage der Nullposition zu senken, also einen tieferen Schnitt durchzuführen, muss lediglich der Zeitpunkt der Antriebsumkehr der Antriebe 91, 92, 96 später gewählt werden, entsprechendes gilt, um die Lage der Nullposition nach oben zu versetzen. Sollte ein Bediener also nicht mit der Lage der Nullposition nach dem Messerwechsel zufrieden sein, kann er über die Steuerung 99 den entsprechenden, diesem Messer 21, 22, 23 zugeordneten Antrieb 91, 92, 96 derartig beeinflussen, dass für diesen einzelnen Antrieb 91, 92, 96 die Nullposition verändert wird. Dadurch, dass alle Messerhalter 31, 32, 33 ihren eigenen Antrieb 91, 92, 96 aufweisen, können diese Variationen der Nullposition unabhängig voneinander durchgeführt werden. Ein mechanisches Nachjustieren der Messer ist dabei in der Regel überhaupt nicht notwendig, da in der Nähe der Nullposition die Schneide des Messers 21, 22, 23 im Wesentlichen parallel zu der Schneidunterlage ist. Bei einer entsprechend ausgeführten Steuerung bzw. einem entsprechend ausgeführten Antrieb ist auf diese Weise eine Variation der Nullposition der Messerhalter 31, 32, 33 im Bereich von wenigen Mikrometern möglich.The controller 99 drives the drives 91, 92, 96 in such a way that the drives 91, 92, 96 perform a drive reversal upon reaching the zero position of the knife holders 31, 32, 33 and thus the zero position of the knives 21, 22, 23. As a result, control technology can influence the position of the zero position. In order to reduce the position of the zero position, ie to perform a deeper cut, only the time of the drive reversal of the drives 91, 92, 96 must be selected later, the same applies to move the position of the zero position upwards. Should an operator therefore not be satisfied with the position of the zero position after the knife change, he can control the corresponding, this knife 21, 22, 23 associated drive 91, 92, 96 in such a way that for this single drive 91, 92 , 96 the zero position is changed. Because all the knife holders 31, 32, 33 have their own drive 91, 92, 96, these variations of the zero position can be performed independently of each other. A mechanical readjustment of the knife is usually not at all necessary, since in the vicinity of the zero position, the cutting edge of the blade 21, 22, 23 is substantially parallel to the cutting pad. In a correspondingly executed control or a correspondingly executed drive, a variation of the zero position of the knife holder 31, 32, 33 in the range of a few micrometers is possible in this way.

In den Figuren 4a, 4b und 4c ist der Antrieb für die horizontale Verschiebung der Seitenmesser zur Anpassung an das Format des beschnittenen Buchblocks 1 dargestellt. Die Seitenmesserhalter 31, 32 sind wie beschrieben in den Messerhaltergehäusen befestigt. Gemeinsam mit den Antrieben 91, 92, die an der ersten Messerhaltergehäuseplatte 61 befestigt sind, sind die Messerhaltergehäuse an zwei starken Führungsstangen 85, 86 horizontal verschiebbar gelagert. Die Führungsstangen 85 und 86 sind beidseitig in das Gehäuse 80 der erfindungsgemäßen Vorrichtung 100 gelagert und tragen dadurch erheblich zur Stabilität des Gehäuses 80 bei. Auf halbem Web entlang der Führungsstangen 85, 86 ist ein Stützelement 88 angebracht. Das Stützelement 88 ist ebenfalls am Gehäuse 80 der Vorrichtung 100 befestigt. Dank des Stützelements 88 kann der Durchmesser der Führungsstangen 85, 86 vergleichsweise gering ausfallen und dennoch eine ausreichende Stabilität des Gehäuses und ein Schutz vor Durchbiegung der Führungsstangen 85, 86 bei den erheblichen Kräften, die beim Schneiden auftreten, gewährleistet werden.In the Figures 4a, 4b and 4c the drive for the horizontal displacement of the side knives to adapt to the format of the trimmed book block 1 is shown. The side knife holders 31, 32 are fixed in the knife holder housings as described. Together with the drives 91, 92 which are fastened to the first knife holder housing plate 61, the knife holder housings are mounted horizontally displaceably on two strong guide rods 85, 86. The guide rods 85 and 86 are mounted on both sides in the housing 80 of the device 100 according to the invention and thereby contribute significantly to the stability of the housing 80 at. On half web along the guide rods 85, 86, a support member 88 is mounted. The support member 88 is also attached to the housing 80 of the device 100. Thanks to the support member 88, the diameter of the guide rods 85, 86 can be relatively small and yet sufficient stability of the housing and protection against deflection of the guide rods 85, 86 at the considerable forces that occur during cutting guaranteed.

Parallel und unterhalb der Führungstangen 85, 86 sind jeweils zwei Gewindespindeln 145, 146 angeordnet, die auf der einen Seite jeweils in einem Stützelement 88 gelagert sind, auf der anderen Seite in der Gehäusewand des Gehäuses 80 der Vorrichtung 100. Auf den Gewindespindeln 145, 146 sind, in Gewindebuchsen 148 gelagert, die Messerhaltergehäuse 61, 62 angebracht. Ein Seitenmesserverstellantrieb 141 ist auf einer Seite des Gehäuses 80 über einen Antriebsgurt 143 mit den Gewindespindeln 145 des einen Seitenmesserhaltergehäuses 61, 62 verbunden. Über eine Übertragungswelle 142 und einen Antriebsgurt 144 steht der Seitenmesserverstellantrieb 141 mit den Gewindespindeln 146 des zweiten Seitenmesserhaltergehäuses 61, 62 in Verbindung. Dadurch werden die Seitenmesser gemeinsam mit den Seitenmessergehäusen synchron zur Mitte der Vorrichtung verschiebbar. Die beidseitige Führung durch die Führungsstangen 85, 86 der Messerhaltergehäuse sorgt für eine große Stabilität des Systems und damit zu sauberen Schnitten.Parallel and below the guide rods 85, 86 are each two threaded spindles 145, 146 are arranged, which are mounted on one side in each case in a support member 88, on the other side in the housing wall of the housing 80 of the device 100. On the threaded spindles 145, 146 are mounted in threaded bushings 148, the knife holder housing 61, 62 attached. A Seitenmesserverstellantrieb 141 is connected on one side of the housing 80 via a drive belt 143 with the threaded spindles 145 of a side knife holder housing 61, 62. Via a transmission shaft 142 and a drive belt 144, the Seitenmesserverstellantrieb 141 is connected to the threaded spindles 146 of the second side knife holder housing 61, 62 in connection. This allows the side knives, together with the side knife housings, to be displaced synchronously with the center of the device. The two-sided leadership by the guide rods 85, 86 of the knife holder housing ensures great stability of the system and thus to clean cuts.

In den Figuren 5a und 5b ist eine Feststellvorrichtung dargestellt, mit der das Messerhaltegehäuse auf den Führungsstangen 86, 86 festgestellt werden kann, bevor der Schneidvorgang eingeleitet wird. Ein Bremsstellelement 150 betätigt einen Bremshebel 151, der eine Exzenterwelle 152 verdreht. Die Exzenterfläche 153 ist in Kontakt mit einem Kontaktblock 154, der die Radiusänderung bei Verdrehung des Bremshebels 151 in eine vertikale Bewegung umsetzt, und damit einen Bremsblock 155 in Kontakt mit der Oberfläche der Führungsstange 85, 86 bringt. Sobald das Bremsstellelement 150 in der mit dem Bezugszeichen 156 gekennzeichneten Bewegungsrichtung bewegt wurde und damit das Messerhaltergehäuse auf der Führungsstange 85, 86 festgestellt ist, ist die Gewindespindel 145, 146 entlastet. Querkräfte, die beim Schneiden auftreten, können dadurch die Gewindespindel 145, 146 nicht mehr belasten, was sich positiv auf die Haltbarkeit der Gewindespindeln 145, 146 auswirkt.In the FIGS. 5a and 5b a locking device is shown with which the Knife holding housing on the guide rods 86, 86 can be determined before the cutting process is initiated. A brake actuator 150 actuates a brake lever 151 which rotates an eccentric shaft 152. The eccentric surface 153 is in contact with a contact block 154, which converts the radius change upon rotation of the brake lever 151 in a vertical movement, and thus brings a brake block 155 in contact with the surface of the guide rod 85, 86. Once the brake actuator 150 has been moved in the direction of movement designated by the reference numeral 156 and thus the knife holder housing is fixed on the guide rod 85, 86, the threaded spindle 145, 146 is relieved. Transverse forces, which occur during cutting, can thereby no longer load the threaded spindle 145, 146, which has a positive effect on the durability of the threaded spindles 145, 146.

In der Figur 6 ist eine Vorrichtung gezeigt, die den Buchblock 1 in unmittelbare Nähe der Messerschneiden 21, 22, 23 niederpresst, so dass ein glatter Seiten- oder Vorderkantenbeschnitt durchgeführt werden kann. Diese Vorrichtung ist vorteilhafterweise bei Vordermesser 23 und bei den zwei Seitenmessern 21, 22 vorgesehen. Die Pressleiste 167 ist mit zwei Pressleistenstangen 169 in Vertikalführungen 166 gelagert. Am Ende der Pressleistenstangen 169 sind Mitnehmer 169 angebracht, die in Langlöchern in Kniehebeln 164 gelagert sind. Die Vertikalführungen 166 sind mit der zweiten Messerhaltergehäuseplatte 62 verschraubt. Der Kniehebel 164 ist am Kniehebeldrehpunkt 165 ebenfalls mit der zweiten Messerhaltergehäuseplatte 62 verbunden. Beide Kniehebel 164 sind mit einer Traverse 163 verbunden, die über eine Schubstangenverlängerung 162 mit der Schubstange 161 verbunden ist, die von dem Pressleistenantrieb 160 angetrieben wird. Bei dem Pressleistenantrieb 160 handelt es sich beispielsweise um einen pneumatischen Antrieb. Wird der Pressleistenantrieb 160 betätigt, werden über die Traverse gleichzeitig beide Kniehebel 164 verdreht, so dass die Pressleistenstangen 169 die Pressleiste 167 vertikal nach unten drücken. Durch die Langlöcher 168 wird eine horizontale Bewegungskomponente unterdrückt, die z.B. zu Beschädigungen der Lager führen würde. Durch diese mechanische Umsetzung des pneumatischen Antriebs wird erreicht, dass die Pressleiste 167 stets parallel zur Schneidfläche bewegt wird und damit alle Ungleichmäßigkeiten in der Dicke des Buchblockes eliminiert werden.In the FIG. 6 a device is shown which presses down the book block 1 in the immediate vicinity of the knife edges 21, 22, 23, so that a smooth side or Vorderkantenbeschnitt can be performed. This device is advantageously provided in the front blade 23 and in the two side blades 21, 22. The pressure bar 167 is mounted with two pressure bar rods 169 in vertical guides 166. At the end of the pressure bar rods 169 drivers 169 are mounted, which are mounted in slots in knee levers 164. The vertical guides 166 are bolted to the second knife holder housing plate 62. The toggle 164 is also connected to the second knife holder housing plate 62 at the toggle pivot 165. Both toggle 164 are connected to a crossbar 163, which is connected via a push rod extension 162 with the push rod 161, which is driven by the pressure bar drive 160. The pressure bar drive 160 is, for example, a pneumatic drive. If the pressure bar drive 160 is actuated, both toggle levers 164 are simultaneously rotated via the traverse so that the pressure bar bars 169 press the pressure bar 167 vertically downwards. Through the slots 168 a horizontal component of motion is suppressed, which would lead to damage to the bearings, for example. By this mechanical implementation of the pneumatic drive is achieved that the pressure bar 167 is always moved parallel to the cutting surface and thus all irregularities in the thickness of the book block are eliminated.

Ebenfalls in Figur 6 ist eine Vorrichtung zum flächigen Niederpressen des Buchblocks 1 gezeigt, die in mehr Details in den Figuren 7a, b, c und d dargestellt ist. Diese Vorrichtung dient dazu, großflächig den Buchblock 1 beim Seitenbeschnitt festzuhalten und die Luft zwischen den Seiten de Buchblocks 1 vor dem Beschnitt herauszudrücken. Die Vorrichtung besteht aus zwei Teilen, einerseits einem gerätefesten Mechanismus für die Bewegung der Pressplatte 180, sowie der auswechselbaren Pressplatte 180 selbst. Der gerätefeste Mechanismus besteht aus einem Pressflächenantrieb 170, beispielsweise einem pneumatischen Zylinder, der eine Schubstange 171 antreibt. Die Schubstange 171 ist mit einer Querstange 172 verbunden. Die Querstange 172 wiederum ist mit zwei Pressflächenführungsstangen 173 verbunden, die in der ersten und zweiten Vertikalführung 174, 175 gelagert sind.Also in FIG. 6 a device for flat pressing of the book block 1 is shown, which in more detail in the FIGS. 7a, b, c and d is shown. This device serves to hold large the book block 1 when Seitenbeschnitt and squeeze the air between the pages de book block 1 before trimming. The device consists of two parts, on the one hand a device-fixed mechanism for the movement of the pressure plate 180, and the interchangeable pressure plate 180 itself. The device-fixed mechanism consists of a press surface drive 170, for example a pneumatic cylinder, which drives a push rod 171. The push rod 171 is connected to a crossbar 172. The cross bar 172 in turn is connected to two press surface guide rods 173, which are mounted in the first and second vertical guide 174, 175.

Die Pressplatte 180 weist an ihrer Oberseite ein vorderes Pressplattenverbindungselement 182 und ein hinteres Pressplattenverbindungselement 181 auf, das in die Querstange 172 eingeschoben werden kann. Im Bereich des vorderen Pressplattenverbindungselementes 182 ist eine Raste 183 vorgesehen, die in die Querstange 172 beim Erreichen der Sollposition der Pressplatte 180 einrastet. Die Pressplatte 181 weist überdies ein Innengewinde 186 auf, in das ein Gewinde 196 eines Griffs 195 eingeschraubt werden kann. Der Griff 195 weist eine Griffführung 197 auf, die mit dem vorderen und hinteren Pressplattenverbindungselement 181, 182 fluchtet.The pressing plate 180 has on its upper side a front pressure plate connection element 182 and a rear pressure plate connection element 181, which can be inserted into the transverse rod 172. In the area of the front pressure plate connecting element 182, a detent 183 is provided which engages in the transverse bar 172 upon reaching the desired position of the pressure plate 180. The pressing plate 181 also has an internal thread 186 into which a thread 196 of a handle 195 can be screwed. The handle 195 has a handle guide 197 which is aligned with the front and rear pressure plate connection elements 181, 182.

Um einen sauberen Seitenbeschnitt eines Buchblocks 1 durchführen zu können ist es erforderlich, dass der Buchblock möglichst über seine gesamte Fläche niedergepresst wird. Da die Buchblöcke in der Regel in ihren Abmessung von Bearbeitungsauftrag zu Bearbeitungsauftrag variieren können, ist es erforderlich, die Pressplatte 180 formatabhängig auszuwechseln. Da der Raum überhalb des Buchblocks in der zweiten Schneideposition zum Seitenbeschnitt in der Regel schwer zugänglich ist, weist die erfindungsgemäße Vorrichtung 100 eine Einführhilfe 190 auf. Die Einführhilfe 190 besteht aus einer Schiene, die über eine Einführhilfenführung 193 mit dem Stützelement 88 verbunden ist. Die Einführstange 190 gleitet entlang der Einführhilfenführungsleiste 192 und kann zum Festplattenwechsel fluchtend mit der Querstange 172 gebracht werden. Die Einführstange 190 und die Querstange 172 haben den gleichen Querschnitt. Um beim Festplattenwechsel die Querstange 172 und die Einführhilfe 190 achsgleich zu machen, weist die Einführstange 190 an ihrem Ende eine Nase 191 auf, die in die Querstange 172 passt. Fluchten Einführungstange 190 und Querstange 172, so kann die Pressplatte 180 vermittels des Griffes 195 auf die Einführstange 190 aufgeschoben und bis zur Querstange 172 geschoben werden. Durch das Einstecken der Einführstange 190 in die Querstange 172 wird die Raster 183 gelöst. Wird die Einführhilfe 190 wieder von der Querstange 172 entfernt, rastet automatisch die Raster 183 ein und fixiert damit die Pressplatte 180. Sobald die Pressplatte 180 an der Querstange 172 eingerastet ist, kann der Griff 195 ausgeschraubt werden und die Einführhilfe 190 aus dem Bereich über der zweiten Schneidposition wegbewegt werden.In order to be able to carry out a clean side trimming of a book block 1, it is necessary for the book block to be pressed down as far as possible over its entire surface. Since the book blocks can generally vary in their dimension from processing order to processing order, it is necessary to replace the press plate 180 format-dependent. Since the space above the book block is generally difficult to access in the second cutting position for side trimming, the device 100 according to the invention has an insertion aid 190. The insertion aid 190 consists of a rail, which is connected via an insertion guide 193 with the support member 88. The insertion rod 190 slides along the insertion aid guide rail 192 and can be brought into alignment with the crossbar 172 for changing the hard disk. The insertion rod 190 and the cross bar 172 have the same cross section. In order to make the crossbar 172 and the insertion aid 190 coaxial when changing the hard disk, the insertion rod 190 has a nose 191 at its end, which fits into the crossbar 172. Aligned insertion rod 190 and crossbar 172, so the pressing plate 180 can be pushed by means of the handle 195 on the insertion rod 190 and to the crossbar 172 be pushed. By inserting the insertion rod 190 in the cross bar 172, the grid 183 is released. When the insertion aid 190 is again removed from the cross bar 172, the grid 183 automatically locks and thus fixes the pressing plate 180. Once the pressing plate 180 is engaged on the crossbar 172, the handle 195 can be unscrewed and the insertion aid 190 out of the area above the be moved away second cutting position.

Um eine optimale Anpassung an die Größe des Buchblocks 1 zu erzielen, kann die Pressplatte 180 eine Pressplattenvergrößerung 185 an ihrer Unterseite aufnehmen. Bei der Pressplattenvergrößerung 185 kann es sich beispielsweise um einen starken Karton handeln, der zuvor an die Unterseite der Pressplatte 180 befestigt wird und dann mit den Formateinstellungen für einen Seitenbeschnitt beschnitten wird, die den Formateinstellungen für die nachfolgenden Buchblöcken entspricht.In order to achieve an optimum adaptation to the size of the book block 1, the pressing plate 180 can receive a pressing plate enlargement 185 on its underside. For example, the die enlargement 185 may be a strong carton that is previously secured to the underside of the die plate 180 and then trimmed to the page trim size settings corresponding to the format settings for the subsequent book blocks.

Liste der BezugszeichenList of reference numbers

1, 1'1, 1 '
Buchblockbook block
2323
Vordermessernose knife
2424
LanglochLong hole
2525
L-förmige AussparungL-shaped recess
2626
taschenförmige Aussparungpocket-shaped recess
2727
Gewindebohrungthreaded hole
3131
erster Seitenmesserhalterfirst side knife holder
3232
zweiter Seitenmesserhaltersecond side knife holder
3333
VordermesserhalterFront blade holder
3535
erstes nierenförmiges Messerhalterlochfirst kidney shaped knife holder hole
3636
zweites nierenförmiges Messerhalterlochsecond kidney shaped knife holder hole
2121
erstes Seitenmesserfirst side knife
2222
zweites Seitenmessersecond side knife
5050
Führungsplatteguide plate
5151
Stellschraubescrew
6161
erste Messerhaltergehäuseplattefirst knife holder housing plate
6262
zweite Messerhaltergehäuseplattesecond knife holder housing plate
6363
Verbindungselementconnecting element
6464
Verbindungselementconnecting element
6565
Verbindungselementconnecting element
6666
Verbindungselementconnecting element
6767
Verbindungselementconnecting element
6868
Verbindungselementconnecting element
6969
erste Koppelfirst paddock
7070
zweite Koppelsecond paddock
7171
Stangepole
7272
Antriebsscheibesheave
8080
Gehäusecasing
8585
Führungsstangeguide rod
8686
Führungsstangeguide rod
8888
Stützelementsupport element
8989
BuchblockauflageflächeBook block supporting surface
9191
Antrieb des ersten SeitenmesserhaltersDrive of the first side knife holder
9292
Antrieb des zweiten SeitenmesserhaltersDrive of the second side knife holder
9393
AntriebsübertragungselementDrive transmission element
9494
AntriebsübertragungselementDrive transmission element
9696
Antrieb des VordermesserhaltersDrive of the front knife holder
9797
AntriebsübertragungselementDrive transmission element
9999
Steuerungcontrol
100100
erfindungsgemäße Vorrichtunginventive device
121121
erster Greiferfirst gripper
122122
zweiter Greifersecond gripper
125125
Stoßplattecleat
135135
Auslagedisplay
141141
SeitenmesserverstellantriebSeitenmesserverstellantrieb
142142
Übertragungswelletransmission shaft
143143
Antriebsgurtdrive belt
144144
Antriebsgurtdrive belt
145145
Gewindespindelscrew
146146
Gewindespindelscrew
148148
Gewindebuchsethreaded bushing
150150
BremsstellelementBrake actuator
151151
Bremshebelbrake lever
152152
Exzenterwelleeccentric shaft
153153
Exzenterflächeeccentric
154154
KontaktblockContact block
155155
Bremsblockbrake block
156156
Bewegungsrichtungmovement direction
160160
PressleistenantriebPressure Bars drive
161161
Schubstangepushrod
162162
SchubstangenverlängerungPushrod extension
163163
Traversetraverse
164164
Kniehebeltoggle
165165
KniehebeldrehpunktKnee fulcrum
166166
Vertikalführungvertical guide
167167
Pressleistepressure bar
168168
KniehebellanglochToggle slot
169169
PressleistenstangePressure profile rod
169'169 '
Mitnehmertakeaway
170170
PressflächenantriebPressing surface drive
171171
Schubstangepushrod
172172
Querstangecrossbar
173173
PressflächenführungsstangePressing surface guide rod
174174
erste Vertikalführungfirst vertical guide
175175
zweite Vertikalführungsecond vertical guide
180180
Pressplattepress plate
181181
hinteres Pressplattenverbindungselementrear pressure plate connection element
182182
vorderes Pressplattenverbindungselementfront pressure plate connection element
183183
Rastenotch
185185
PressplattenvergrößerungPress plate enlargement
186186
Innengewindeinner thread
190190
Einführhilfeinsertion
191191
Nasenose
192192
EinführhilfenführungsleisteEinführhilfenführungsleiste
193193
EinführhilfenführungEinführhilfenführung
195195
GriffHandle
196196
Griffgewindehandle thread
197197
Griffführunghandle leadership

Claims (24)

  1. An apparatus for trimming book blocks (1, 1'), wherein the apparatus (100) is provided with at least a first lateral blade (21) for performing a first lateral edge trim, wherein the first lateral blade (21) is attached to a moveably mounted first lateral blade holder (31) and is provided with a second lateral blade (22) for performing a second lateral edge trim, wherein the second lateral blade (22) is attached to a moveably mounted second lateral blade holder (32), characterized in that the blade holders (31, 32) are provided with individual drives (91, 92) which are mechanically independent of one another.
  2. The apparatus according to claim 1, characterized in that the apparatus is provided with at least one guide (50) by which at least one blade holder is guided on both sides along its direction of movement and said guide (50) consists, on both sides, of at least one guide face (50) made of a wear-resistant material.
  3. The apparatus according to claim 2, characterized in that said wear-resistant material is PET.
  4. The apparatus according to one of the claims 2 to 3, characterized in that at least one adjusting screw (51) is assigned to at least one guide face (50), which makes it possible to change the position of the guide face (50) in relation to the position of the lateral blade holder (31, 32, 33).
  5. The apparatus according to one of the claims 1 to 4, characterized in that the apparatus is provided with a linkage mechanism (69, 70, 71) which connects the blade holders to a drive, wherein the linkage mechanism (69, 70, 71) comprises a first coupler (69) and a second coupler (70), wherein the first coupler (69) is connected to the blade holder (31, 32, 33), a blade holder housing (61, 62) and eccentrically via a movable rod (70) to a drive pulley (72); and the second coupler (70) is connected to the blade holder housing (61, 62) and the blade holder (31, 32, 33); and the first coupler (69) and the second coupler (69) are configured such that the distance between the point of contact between blade holder housing (61, 62) and blade holder (31, 32, 33) is different for the first and second coupler (69, 70).
  6. The apparatus according to one of the claims 1 to 5, characterized in that the apparatus is provided with a linkage mechanism (69, 70, 71) which connects the blade holders to a drive, wherein the linkage mechanism (69, 70, 71) consists of a first coupler (69) and a second coupler (70), wherein the first coupler (69) is connected to the blade holder (31, 32, 33), a blade holder housing (61, 62) and eccentrically via a movable rod (70) to a drive pulley (72); and the second coupler (70) is connected to the blade holder housing (61, 62) and the blade holder (31, 32, 33); and the apparatus (100) is provided with a controller (99) configured such that it terminates the downward movement of the blade holder (31, 32, 33) by reversing the drive when a predetermined cutting depth has been reached.
  7. The apparatus according to one of the claims 1 to 6, characterized in that the blade holders (31, 32) are movably fastened to the blade holder housings (61, 62); and the blade holder housings (61, 62) are mounted in a horizontally displaceable manner on two mutually parallel guide rods (85, 86), which are fastened to the housing (80) of the apparatus (100); and both blade holder housings (61, 62) are mounted on the same two mutually parallel guide rods (85, 86), which are fastened to the housing (80) of the apparatus (100).
  8. The apparatus according to claim 7, characterized in that the apparatus is provided with at least one drive (141) for displacing at least one of the blade holder housings (61, 62), together with the blade holder (31, 32) fastened to said blade holder housings (61, 62), horizontally along the guide rods (85, 86).
  9. The apparatus according to claim 8, characterized in that the apparatus (100) is provided with a threaded spindle (145, 146) parallel to at least one of the two parallel guide rods (85, 86) for converting the drive movement of the drive (141) into a horizontal movement of the blade holder housings (61, 62).
  10. The apparatus according to one of the claims 7 to 9, characterized in that the apparatus (100) comprises a controller (99) which automatically changes the position of the blade holder housings (61, 62) on the two parallel guide rods (85, 86) in accordance with the dimensions of the trimmed book block (1, 1').
  11. The apparatus according to one of the claims 7 to 10, characterized in that at least one of the blade holder housings (61, 62) is provided with a brake (150, 151, 152, 153, 154) by which it is possible to fix at least one blade holder housing (61, 62) on at least one of the two mutually parallel guide rods (85, 86).
  12. The apparatus according to claim 11, characterized in that the apparatus (100) is provided with a controller (99) by the brake (150, 151, 152, 153, 154) fixes the at least one blade holder housing (61, 62) on one of the two parallel guide rods (85, 86) before the blade holders (31, 32) are moved vertically.
  13. The apparatus according to one of the claims 1 to 12, characterized in that the apparatus (100) is provided with an apparatus for pressing down the lateral book block edges next to each lateral blade (21, 22, 23), wherein the apparatus for pressing down the lateral book block edges has a pressing strip (167); and the apparatus for pressing down the book block edges can be moved horizontally together with the lateral blade holder housings (61, 62).
  14. The apparatus according to claim 13, characterized in that the pressing strip (167) is provided with rods (161) at both ends which are mounted in guides (166) in a vertically movable manner and which are each connected to a common cross-member (163) via toggle levers (164).
  15. The apparatus according to claim 14, characterized in that the apparatus for pressing down the book block edges is provided with a drive (160), in particular a pneumatic drive (160), which drives the cross-member (163) substantially horizontally, wherein the substantially horizontal movement is converted by the toggle levers (164) into a vertical movement of the pressing strip (167).
  16. The apparatus according to one of the claims 1 to 15, characterized in that the apparatus (100) is provided with an apparatus for pressing down the book block surface between the lateral blades (21, 22), wherein the apparatus for pressing down the book block surface is provided with at least one drive (170), a push rod (171) connected to the drive (170) and a press plate (180) connected to the push rod (171), and the apparatus is provided with an insertion aid (190) for changing the press plate (180), wherein the insertion aid (190) is provided with an insertion rail (190) which is aligned with the transverse rod (172) during changing of the press plate (180).
  17. The apparatus according to claim 16, characterized in that the press plate (180) is provided with a coupling mechanism (183) into which it is possible to couple an insertion rod (195).
  18. The apparatus according to one of the claims 16 to 17, characterized in that the apparatus (100) is provided with a magazine with press plates (180) of varying dimensions.
  19. The apparatus according to one of the claims 16 to 18, characterized in that the apparatus (100) is provided with means for automatically changing the press plate (180).
  20. The apparatus according to one of the claims 16 to 19, characterized in that the underside of the press plate (180) has connection elements for accommodating a press plate extension (185) underneath the press plate (180), in particular an adhesive surface for accommodating a stiff board (185).
  21. The apparatus according to claim 20, characterized in that the press plate extension (185) is a board (185) which is trimmed with the same positional settings of the lateral blades (21, 22) for trimming the book block (1).
  22. The apparatus according to one of the claims 1 to 21, characterized in that the lateral blades (21, 22) are interchangeable.
  23. The apparatus according to one of the claims 1 to 22, characterized in that the apparatus is provided with a front blade (23) for performing a front edge trim, wherein the front blade (23) is attached to a movably mounted front blade holder (33).
  24. The apparatus according to claim 23, characterized in that the front blade (23) and / or the front blade holder (33) has the same properties as the lateral blades (23) or the lateral blade holders (33) respectively in one of the claims 1 to 28.
EP20040101357 2003-04-30 2004-04-01 Device for trimming stacked sheets used for books Expired - Lifetime EP1473126B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20030875 2003-04-30
ITMI20030875 ITMI20030875A1 (en) 2003-04-30 2003-04-30 DEVICE FOR CUTTING BLOCKS OF BOOKS TO MEASURE

Publications (3)

Publication Number Publication Date
EP1473126A2 EP1473126A2 (en) 2004-11-03
EP1473126A3 EP1473126A3 (en) 2005-12-07
EP1473126B1 true EP1473126B1 (en) 2010-06-23

Family

ID=32983217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040101357 Expired - Lifetime EP1473126B1 (en) 2003-04-30 2004-04-01 Device for trimming stacked sheets used for books

Country Status (7)

Country Link
US (1) US20050016341A1 (en)
EP (1) EP1473126B1 (en)
JP (1) JP2004330410A (en)
CN (1) CN1541816A (en)
AT (1) ATE471798T1 (en)
DE (2) DE502004011294D1 (en)
IT (1) ITMI20030875A1 (en)

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JP2006088289A (en) * 2004-09-27 2006-04-06 Konica Minolta Business Technologies Inc Paper cutter, paper post-processing device and image forming system
JP4752390B2 (en) * 2005-08-11 2011-08-17 コニカミノルタビジネステクノロジーズ株式会社 Bookbinding apparatus and image forming system
DE102007025756A1 (en) 2007-03-07 2008-09-18 Wohlenberg Buchbindesysteme Gmbh A method for converting a cutting machine for preferably three-sided trimming a sheet stack
DE102010016479A1 (en) * 2010-04-16 2011-10-20 Matthias Felber Cutting machine and method for performing cutting work on flat limp or other materials
JP6100249B2 (en) * 2012-05-29 2017-03-22 ホリゾン・インターナショナル株式会社 Cutting machine
US20140033886A1 (en) 2012-08-01 2014-02-06 Xerox Corporation Document Production System and Method With Automated Die Exchange
EP3085502B1 (en) * 2015-04-21 2017-11-01 Müller Martini Holding AG Method for operating an apparatus for performing cutting operations of open formatcards of a printed product
CN111002365B (en) * 2019-12-26 2020-07-14 哈尔滨学院 Image formation of image paper cutting device

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US3528332A (en) * 1968-02-01 1970-09-15 Miehle Goss Dexter Inc Continuous one-station three-knife book trimmer
US3884102A (en) * 1974-01-09 1975-05-20 Advance Enterprises Inc Three knife trimming machine
CH583611A5 (en) * 1975-04-08 1977-01-14 Ferag Ag
DE2852878A1 (en) * 1978-12-07 1980-06-19 Rahdener Maschf August THREE-KNIFE CUTTING MACHINE
CH656828A5 (en) * 1982-05-06 1986-07-31 Grapha Holding Ag CUTTER FOR CUTTING BROCHURES.
CH668216A5 (en) * 1985-11-14 1988-12-15 Ferag Ag Printed item-trimming machine - has compartments and knives on parallel endless chains travelling at same speed
DE4332123A1 (en) * 1993-09-22 1995-03-23 Wilhelm Hegler Device for sawing slots in corrugated and composite pipes
DE19516047C2 (en) * 1995-05-04 1997-04-30 Wohlenberg Vertriebs Und Servi Triple cutter
IT1306909B1 (en) * 1998-04-24 2001-10-11 Zechini Gra For S R L TRILATERAL CUTTER IN PARTICULAR FOR THE TRIM OF THE EDGES OF LIBRIVOLUME TO REPLACE THE BLADES SIMPLIFIED
US6105477A (en) * 1998-06-17 2000-08-22 Olson; Garry G. Lumber milling apparatus
DE19940997A1 (en) * 1999-08-28 2001-03-01 Sms Demag Ag Device for the continuous casting of metal
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DE10204296A1 (en) * 2002-02-02 2003-08-14 Kolbus Gmbh & Co Kg Device for three-sided trimming of printed products

Also Published As

Publication number Publication date
EP1473126A2 (en) 2004-11-03
DE502004011294D1 (en) 2010-08-05
US20050016341A1 (en) 2005-01-27
CN1541816A (en) 2004-11-03
DE102004016373A1 (en) 2004-11-18
ATE471798T1 (en) 2010-07-15
JP2004330410A (en) 2004-11-25
EP1473126A3 (en) 2005-12-07
ITMI20030875A1 (en) 2004-11-01

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