EP0698571A2 - Cutting and transport cylinder for webs - Google Patents

Cutting and transport cylinder for webs Download PDF

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Publication number
EP0698571A2
EP0698571A2 EP95111590A EP95111590A EP0698571A2 EP 0698571 A2 EP0698571 A2 EP 0698571A2 EP 95111590 A EP95111590 A EP 95111590A EP 95111590 A EP95111590 A EP 95111590A EP 0698571 A2 EP0698571 A2 EP 0698571A2
Authority
EP
European Patent Office
Prior art keywords
roller
roll
passage slot
pressure medium
separating
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.)
Granted
Application number
EP95111590A
Other languages
German (de)
French (fr)
Other versions
EP0698571A3 (en
EP0698571B1 (en
Inventor
Klaus Reinhold
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Individual
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Individual
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Filing date
Publication date
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Publication of EP0698571A2 publication Critical patent/EP0698571A2/en
Publication of EP0698571A3 publication Critical patent/EP0698571A3/en
Application granted granted Critical
Publication of EP0698571B1 publication Critical patent/EP0698571B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • 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
    • B26D1/065—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 for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/12—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 cutting member moving about an axis
    • B26D1/25—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 cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/42—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and slidably mounted in a rotary member
    • B26D1/425—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 cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and slidably mounted in a rotary member for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/56—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D5/12—Fluid-pressure means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B26F3/08—Severing by using heat with heated members
    • B26F3/12—Severing by using heat with heated members with heated wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2207—Changing the web roll in winding mechanisms or in connection with winding operations the web roll being driven by a winding mechanism of the centre or core drive type
    • B65H19/2215—Turret-type with two roll supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2253—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being displaced during the winding operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
    • B65H2301/41734—Handling web roll by central portion, e.g. gripping central portion involving rail
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4187—Relative movement of core or web roll in respect of mandrel
    • B65H2301/4189—Cutting
    • B65H2301/41892—Cutting knife located in winding or guiding roller and protruding therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/233—Central support turret

Definitions

  • the invention relates to a cutting and transport roller for material webs, which is used in particular as a counter roller in devices for winding film, paper and the like material webs running continuously over guide rollers.
  • Numerous winding devices working with a counter roller are known, in which a separate cutting device with a separating knife is provided as the roll changing device, which cuts the material web when the material roll is finished wound on a given winding shaft. Difficulties arise here in detaching the end of the web separated from the winding roll from the winding roll and, as a new start of the web, on a new winding shaft or a winding tube mounted thereon as a roll core, during the continuous feed of the web of material, quickly and reliably, without causing high web losses and undesirable Wrinkles occur in the material web during the winding process.
  • the invention has for its object to provide a cutting and transport roller which is particularly suitable as a counter roller in winding devices and with which the roll change can be carried out easily and quickly in particular, the new start of the path to avoid wrinkles and path losses can be positioned precisely and securely on the new winding shaft.
  • the cutting and transport roller designed in this way when used in a winding device, forms a counter-roller with an integrated reel changing device, such that the separating knife forms a component of the counter-roller itself, thus ensuring that the severed web end is reliably transferred to a winding shaft as a new web start can be done for winding.
  • the roll changing device comprises the cutting knife for severing the material web when the winding roll is completely wound and the pressure space effective on its circumference for holding the new web start and for transferring it to a new winding shaft.
  • a vacuum can be applied to the circumference of the counter roller to hold the new web start by means of the pressure chamber, and the circumference of the counter roller can be acted upon via the pressure chamber with an overpressure that repels the web start from the roller circumference for the transfer of the web start to the new winding shaft.
  • the new web start is securely held on the circumference of the counter roller by the negative pressure, while when the new winding shaft is reached by switching the pressure chamber to overpressure, the new web start is pushed off the circumference of the counter roller and at the same time on the new one Winding shaft or its winding tube is wound up.
  • the winding device shown in the drawing is used for winding material webs such as plastic films, which are continuously produced by an extruder and wound up as flat webs.
  • a pivot bearing designated as a whole by 3 is pivotably supported about a horizontal axis of rotation 4.
  • the pivot bearing 3 is formed by a double lever, the contour-identical single lever 5 and 6 each in an adjacent side wall 2 of the device frame 1 in bearings mounted on the inside are rotatably mounted.
  • the two individual levers 5 and 6 are each formed by a two-armed lever, the two lever arms 8 and 9 of which, starting from an inner region encompassing the axis of rotation 4, each have a guide slot 10 which opens outwards to the respective stub shaft of a winding shaft 12 or 13 are provided.
  • Each lever arm 8, 9 is divided by its guide slot 10 into two parallel arm parts 14 and 15, of which the arm part 14 is extended outwards via the arm part 15.
  • each arm part 14 forms an end receptacle 16 with an abutment shoulder 17 for the respective winding shaft 12 carrying a completely wound winding roller 24 (FIGS. 2 and 3).
  • the two lever arms 8 and 9 of each individual lever 5 and 6 are of identical design.
  • their arm parts 14 and 15 are each offset alternately above and below the horizontal transverse plane 18 of the device containing the axis of rotation 4 of the pivot bearing 3.
  • a cutting and transport roller 19 is rotatably supported as a counter roller in the pivot bearing 3 about a horizontal axis of rotation 20 which coincides with the axis of rotation 4 of the pivot bearing 3.
  • the counter roller interacts as a contact roller with the winding shafts 12 and 13 or with the web material wound thereon, which is illustrated by dash-dotted lines at 21 and is fed to the counter roller 19 in the direction of the arrow 22.
  • the arrangement is such that the axis of rotation 4 of the pivot bearing 3 and the axis of rotation 20 of the counter-roller 19 coinciding therewith are located in a vertical parting plane 23 which divides the device into two work stations I and II.
  • the two workstations I and II are from the horizontal position of the pivot bearing 3, in which the axes of rotation of the winding shafts 12, 13 and the axis of rotation 20 of the counter-roller 19 are arranged in the common horizontal transverse plane 18 of the device, which also contains the axis of rotation 4 of the pivot bearing 3.
  • the counter-roller 19 is connected to a reversible direction of rotation for an optional rotation clockwise or counterclockwise, as are the winding shafts 12 and 13 on both sides of the counter-roller 19 in the two workstations I and II, to which the counter-roller 19 is each assigned half its own reversible direction of rotation drive for each connected to the counter-roller 19 in the opposite direction.
  • This measure serves for the optional winding of the material web 21 clockwise or counterclockwise onto the respective winding shaft 12.
  • the reversible direction of rotation drives used in this connection are known to the person skilled in the art in their application and are therefore not shown in detail here.
  • the material web 21 is fed to the winding device via guide rollers, of which only those close to the device are shown in the drawing, namely two upper guide rollers 25 and 26 and two lower deflection rollers 27 and 28 adjoining the counter roller 19.
  • the upper guide roller 25 is in the side walls 2 of the device frame 1 near the vertical division plane 23 of the device is freely rotatably supported, while the guide roller 26 and the deflecting rollers 27 and 28 are freely rotatably mounted in a separate arm 29 inside the device frame 1.
  • the other deflection roller being brought into a rest position can be, which is offset in the direction away from the counter-roller 19 from the common horizontal plane of the deflection rollers 27, 28. This can be done, for example, in a manner not shown in detail by moving the respective deflecting roller 27, 28 upward in its bearing leg 32 with a corresponding, releasable fixing.
  • the counter-roller 19 contains, as a roll changing device, a separating knife for severing the material web 21 when the winding roll 24 is completely wound and comprises an effective pressure space on its circumference 34 for holding the new web start and for transferring it to a new winding shaft like the winding shaft 13.
  • a negative pressure can be applied to the circumference 34 of the counter roller 19 by means of the effective pressure chamber, so that the beginning of the web is sucked into the circumference 34 of the counter roller 19, which ensures that the new beginning of the web is transported in the correct position by means of the counter roller 19.
  • the effective pressure space is switched to overpressure, as a result of which the suction effect is canceled and the beginning of the web is instead repelled by the roller circumference 34 in order to pass to the new winding shaft 13 or a winding tube pushed onto it , which can optionally be provided with an external adhesive application in a manner known per se, to be wound up.
  • the cutting and transport roller 19 comprises a hollow cylindrical roller shell 35 which defines the roller circumference 34 and which is provided on each of its two ends by an end wall 36 and 37 is closed to form an inner roll cavity.
  • the roller jacket 35 comprises a metal jacket 38 and a rubber or rubber jacket 39 mounted thereon, depending on the application and the web material that is drawn from the roller 19 handle, instead of the rubber jacket 39, a coating of the metal jacket 38 can be provided with other material, or the metal jacket 38 can be chromed on the outside.
  • a separating body 40 is inserted into the inner roller cavity and, with the roller circumference 34, delimits two pressure spaces 41 and 42 which extend essentially over the entire axial roller length.
  • the two pressure chambers 41 and 42 are connected to the environment via an arrangement of through bores 43 and 44 through the roller shell 35. In the example shown, a plurality of axial rows of through bores 43 and 44 are provided.
  • the roll shell 35 is also provided with a through slot 45, which in turn extends essentially over the entire axial roll length.
  • a separating knife 46 extends through the passage slot 45 and is in turn supported in the inner roller cavity, also in the example shown on the separating body 40.
  • the separating body 40 is designed as a hollow profile body with a multi-chamber profile, a central chamber receiving the roller axis 20 forming a supply chamber 47 via which a pressure medium is supplied from an external pressure medium source and optionally into the pressure chamber 41 or 42 is fed.
  • the separating knife 46 is supported in the area between the feed chamber 47 and the passage slot 45.
  • the separating body 40 has the three-chamber cross-sectional profile, which can be seen in particular in FIG. 5, with a central box-shaped part, which delimits the feed chamber 47, and two trapezoidal parts opposite it outer parts 48 and 49 tapering towards the roller shell 35.
  • the separating body 40 extends diametrically on both sides of a diameter plane 50 containing the separating knife 46 and its passage slot 45 through the inner roller cavity and is at its radial ends with its outer parts 48 and 49 each with the inner shell 38 the roller 19 and with its front ends firmly connected to the inside of the end walls 36 and 37 of the roller 19, for example welded.
  • the separating body 40 is formed symmetrically on both sides of the diameter plane 50, so that the two pressure spaces 41 and 42 are in turn correspondingly symmetrical, their through bores 43 and 44 being arranged diametrically opposite one another in the roller jacket 35.
  • the pattern and the arrangement of the through bores 43 and 44 can, however, be changed depending on the respective application compared to the example shown in FIG. 5.
  • the pressure chambers 41 and 42 which are only connected to the environment via the through bores 43 and 44 and are otherwise sealed, can optionally be connected to the external pressure medium source.
  • a feed line 51 is applied to the wall 52 of the feed chamber 47 facing the pressure chamber 41, the pressure chamber 41 being connected to the pressure medium through a corresponding opening in the wall 52, while the other pressure chamber 42 is completed by the print medium.
  • the supply line 51 after releasing its connection to the wall 52, is pivoted through 180 ° and placed against the wall 53 opposite the wall 52 and connected to it, then via a corresponding opening in the wall 53, the pressure chamber 42 is connected to the pressure medium, while the pressure chamber 41 receives no pressure medium, ie is not exposed to negative pressure or excess pressure.
  • the separating knife 46 is formed in the exemplary embodiment illustrated in FIGS. 4 and 5 by a narrow, upstanding cutting blade 54 which projects with a free cutting edge end region through the through-slot 45 so that it separates the roller jacket 35, i.e. slightly exceeds the outer circumference 34 of the roller 19.
  • the cutting blade 45 can be moved linearly from end to end of the roller 19 along the passage slot 45 at high speed.
  • the cutting blade 54 has cutting edges 55 lying opposite one another in the longitudinal direction of the passage slot 45, and a separating cut through the material web 21 can be carried out with each leading movement of the cutting blade 54 from end to end of the roller 19 with the respective leading cutting edge 55.
  • the linear movement of the cutting blade 54 along the passage slot 45 takes place by means of a pressure medium drive, which is formed by a double-acting pressure medium-operated working cylinder 56. Compressed air is preferably used as the pressure medium for actuating the working cylinder 56.
  • the cylinder 56 is supported in the outer part 49 of the three-chamber separating body 40 on an inner wall 57 with its two end-side connection parts 58 and 59.
  • a connecting tube 60 extends between the two connecting parts 58 and 59.
  • the cutting blade 54 is supported by a rodless piston (not shown) and connected to the latter via a narrow intermediate web 61, which with tight movement play in a guide slot opposite the passage slot 45 in the roller jacket 35 of the connecting tube 60 of the working cylinder 56 is guided.
  • the working cylinder 56 extends essentially over the entire axial length of the roller 19, with a fitting for the connecting tube 60 and the piston guided therein Round or polygonal profile, for example the rectangular profile shown in FIG. 5 is provided.
  • the compressed air is supplied to the working cylinder 56 via a rotary inlet 62 known per se with two supply channels which are connected to a compressed air supply line via external connections 63 and 64.
  • the rotary entry 62 is firmly screwed to a front bearing journal 66 of the roller 19 via a threaded journal 65.
  • the bearing journal 66 has two concentric channels 67 and 68 in its interior, which are connected to the two compressed air channels of the rotary inlet 62.
  • a line 69 leads from the channel 67 to the connecting part 58 of the working cylinder 56, while a line 70 leads from the channel 68 to the connecting part 59 of the working cylinder 56.
  • the knife blade 54 connected to the cylinder piston is shown in FIG. 4 in one of its two end positions near the end wall 36, in which the cylinder piston adjoins the connecting part 58.
  • the connecting part 58 is supplied with compressed air at high pressure via the line 69, so that the piston-supported cutting blade 54 moves suddenly along the passage slot 45 to the end wall 37 of the roller 19 and, without interacting with a counter knife, one in executes a substantially right-angled separating cut through the material web 21.
  • the end position of the knife blade 54 near the end wall 37 corresponds to the position near the end wall 36 shown in Fig. 4, i.e.
  • the cylinder piston with the knife blade 54 is located shortly in front of the connecting part 59, in order to be suddenly driven in the opposite direction along the passage slot 45 in order to perform a separating cut through the material web 21 when the connecting line 70 and thus the connecting part 59 are pressurized.
  • the bearing journal 66 serves in the rest, just like a further bearing journal 71 in the end wall 37, in itself the rotary drive of the roller 19 in a known manner.
  • the bearing journal 71 is also provided with a rotary lead-in, which is designated here by 72.
  • the rotary inlet 72 has only one central pressure medium channel which is connected to a pressure medium feed line via an outer connection 73.
  • the central pressure medium channel is connected via a hollow threaded pin 74 to an inner pressure medium channel 75 of the bearing pin 71, from the inner end of which the pressure medium line 51 for supplying the pressure chamber 41 or 42 with air as the pressure medium starts.
  • the pressure medium channel 75 can be connected via the rotary inlet 72 either to an external vacuum source or to an excess pressure source by means of a corresponding switchover process in the supply system.
  • connection to an external vacuum source means that air is drawn in from the surroundings through the through bores 43 or 44, or a material web lying above the through bores 43 or 44 is sucked into the roller circumference 34 in this area.
  • the pressure medium channel 75 and thus via line 51 is supplied to the pressure chamber 41 or 42 with a pressure such that the material web previously held in the area of the through bores 43 or 44 passes through the through bores 43 or 44 acting compressed air is expelled from the roller circumference 34 in order, in the application described above, to be fixed on the winding tube of a new winding shaft 13 in the course of performing a roll change.
  • the separating knife 46 is formed by a cutting blade 76 with an outer cutting edge 77, the length of which is substantially equal to that of the passage slot 45.
  • the cutting edge 77 which is shaped in the manner of a serrated knife, is normally held within the through-slot 45, as illustrated in FIG. 6, without projecting beyond the roller circumference 34.
  • the cutting blade 76 is briefly moved out of the passage slot 45 and back again at high speed in the radial direction of the roller diameter.
  • double-acting pressure medium-operated lifting cylinders 78 are provided in the two end regions of the cutting blade 76, which adjoin the respective end walls 36 and 37 of the rollers.
  • the lifting cylinders 78 are each supported on the inner wall 57 of the separating body 40.
  • the piston rod 79 of the respective lifting cylinder 78 is attached to the inside of the cutting blade 76.
  • pressure medium supply lines 80 and 81 which open out on both sides of the end faces of the piston are provided in a manner known per se.
  • the supply of the lines 80 and 81 takes place via a rotary lead-in 62 and a bearing journal 66 according to FIG. 4, like the other bearing journal which is not shown in FIG. 6 corresponds to the bearing journal 71 according to FIG. 4.
  • the cutting blade 76 can be operated by a heatable resistance wire with a corresponding holder with the same method of operation as the one shown in FIG Fig. 6 explains, can be used to perform a fusion cut.
  • the separating knife 46 which in turn is designed as a serrated knife blade 76 with a serrated cutting edge 78, can be actuated via a parallel guide linkage 82 attached in the inner cavity of the roller 19 by means of an outer push rod drive 83 operated by pressure medium.
  • the parallel guide linkage 82 comprises a link 84, which is articulated at 85 on the knife blade 76 and at 86 to a holder 87, which in turn is fastened on the inner wall 57 of the separating body 40.
  • the link 84 is guided through the inner wall 57 and connected at its inner end to a push rod 88 of the push rod drive 83.
  • the push rod 88 has at its inner end an engagement pin 89 approximately at the level of the axis of rotation 20 of the roller 19, which engages in an elongated hole 90 of the link arm 91 on this side of the rotary connection 86.
  • 7 shows the cutting blade 76 in its rest position, in which it lies with its cutting edge 77 within the passage slot 45.
  • the parallel guide linkage 82 comprises a corresponding link arrangement, with the exception of the inner link arm 91, in the orientation of the link 84 shown in FIG. 7.
  • the push rod drive 83 further comprises a pressure medium-operated working cylinder 92, preferably a pneumatic lifting cylinder, the piston rod 93 of which is fixedly connected to the push rod 88 by a coupling 94.
  • the push rod 88 is passed through the end bearing journal 95 of the roller 19, which is at the same time designed as a guide bush for this purpose.
  • the other bearing journal which is not shown in FIG. 7, is designed corresponding to the bearing journal 71 according to FIG. 4.
  • the push rod 88 is moved inwards in the direction of arrow 97 by means of the lifting cylinder 92, the links 84 pivoting about their pivot point 86 in accordance with the movement arrow 98.
  • the cutting blade 76 is moved out of the passage slot 45 with a combined radial and axial movement at high speed and moved back again when the lifting cylinder 92 is reversed.
  • This type of movement of the cutting blade 76 creates a so-called pulling cut, which, depending on the material to be cut, can be advantageous compared to other embodiments of the knife 46.
  • Fig. 1 the winding device is shown in the ongoing winding operation, the incoming material web 21 is fed around the counter-roller 19 of the winding roller 24 rotating clockwise while wrapping the deflection roller 27. A new winding shaft 13 has already been inserted in work station I.
  • FIG. 2 shows the winding roll 24 which has been completely wound clockwise just before a new start of the web is wound onto the winding shaft 13 in the work station I.
  • the roll change is initiated in such a way that when a certain winding diameter is reached for the winding roll 24, a control signal is given, by which, when winding in a clockwise direction, the pressure chamber 42 builds up a vacuum from the external vacuum source, so that through the through bores 44 in Roll jacket 35, the incoming material web 21 is sucked onto the roll circumference 34 of the counter roll 19.
  • the cutting process by means of the separating knife 46 is carried out by corresponding drive control during the continuous feeding of the material web 21 between the deflection roller 27 and the new winding shaft 13.
  • the deflection roller 28 is in its rest position.
  • FIG. 3 illustrates a momentary state of the winding process according to FIG. 2.
  • the reel change takes place in the same way in principle as described with reference to FIG. 2, but with the Suction is applied through the through-holes 43 of the pressure chamber 41 in accordance with the direction of rotation of the counter-roller 19 on its roller circumference 34 and the transverse separation takes place by means of the knife 46 between the deflection roller 28 and the contact line between the counter-roller 19 and the winding roller 24.
  • the separated, drawn-in web end is then transported on in the manner described and transferred to the new winding shaft 13.
  • winding shafts 12 and 13 can be locked in their respective guide slots 10 of the pivot bearing 3 by suitable means which are readily available to the person skilled in the art in this field, for example by means of a claw safety device.
  • the reel change is quick and easy, since with the cutting and transport roller according to the invention as the counter roller 19, the material web 21 can be cut without interrupting its inflow, with a minimum of time and the new web start can be safely transported to the new winding shaft 13.
  • the cutting and transport roller 19 according to the invention is not only suitable as a counter-roller with a roll changing device in a device for winding continuously tapering film, paper and similar material webs of the type described above, it is also suitable in others Applications for fulfilling the same or similar tasks and in particular also for use in other winding devices which, in particular, do not work with a swivel bearing forming a winding station and a finishing winding station, in which instead only one winding station is provided which serves to wind up and finish winding the respective material roll .

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Advancing Webs (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The cutting and transporting roll (19) can be used as a counter-roll for an unwinding device. There is a dividing body (4) in the internal hollow space of the roll. With the roll circumference it forms at least one pressure space (41,42) with through borings (43,44) in the roll shell (35). The pressure space extends over the entire axial length of the roll. There is also a through slit (45) in the roll, also extending along the entire roll. A cutting knife (46) passes through this slit to cut the material. The dividing body may be hollow, with its internal space supplied with fluid under pressure.

Description

Die Erfindung betrifft eine Schneid- und Transportwalze für Materialbahnen, die insbesondere als Gegenwalze in Vorrichtungen zum Aufwickeln von kontinuierlich über Führungswalzen zulaufenden Folien-, Papier- und dgl. Materialbahnen Verwendung findet.The invention relates to a cutting and transport roller for material webs, which is used in particular as a counter roller in devices for winding film, paper and the like material webs running continuously over guide rollers.

Es sind zahlreiche mit einer Gegenwalze arbeitende Wickelvorrichtungen bekannt, bei denen als Rollenwechseleinrichtung eine gesonderte Schneidvorrichtung mit einem Trennmesser vorgesehen ist, die die Materialbahn durchtrennt, wenn die Materialrolle auf einer gegebenen Wickelwelle fertiggewickelt ist. Schwierigkeiten bereitet es hierbei, das von der Wickelrolle abgetrennte Bahnende von der Wickelrolle zu lösen und als neuen Bahnanfang auf einer neuen Wickelwelle bzw. einer darauf als Rollenkern angebrachten Wickelhülse während des kontinuierlichen Zulaufs der Materialbahn schnell und sicher festzulegen, ohne daß hohe Bahnverluste entstehen und unerwünschte Falten in der Materialbahn beim Anwickelvorgang entstehen.Numerous winding devices working with a counter roller are known, in which a separate cutting device with a separating knife is provided as the roll changing device, which cuts the material web when the material roll is finished wound on a given winding shaft. Difficulties arise here in detaching the end of the web separated from the winding roll from the winding roll and, as a new start of the web, on a new winding shaft or a winding tube mounted thereon as a roll core, during the continuous feed of the web of material, quickly and reliably, without causing high web losses and undesirable Wrinkles occur in the material web during the winding process.

Der Erfindung liegt die Aufgabe zugrunde, eine Schneid- und Transportwalze zu schaffen, die speziell als Gegenwalze bei Wickelvorrichtungen geeignet ist und mit der sich der Rollenwechsel einfach und schnell durchführen und insbesondere der neue Bahnanfang zur Vermeidung von Faltenbildungen und Bahnverlusten lagegenau und sicher auf der neuen Wickelwelle festlegen läßt.The invention has for its object to provide a cutting and transport roller which is particularly suitable as a counter roller in winding devices and with which the roll change can be carried out easily and quickly in particular, the new start of the path to avoid wrinkles and path losses can be positioned precisely and securely on the new winding shaft.

Diese Aufgabe wird nach der Erfindung durch eine Ausgestaltung der Vorrichtung gemäß dem Anspruch 1 gelöst. Die in dieser Weise ausgebildete Schneid- und Transportwalze bildet bei ihrem Einsatz in einer Wickelvorrichtung eine Gegenwalze mit integrierter Rollenwechseleinrichtung, derart, daß das Trennmesser ein Bauteil der Gegenwalze selbst bildet und so auf kurzem Weg eine sichere Übergabe des abgetrennten Bahnendes als neuer Bahnanfang an eine Wickelwelle zum Anwickeln erfolgen kann.This object is achieved according to the invention by an embodiment of the device according to claim 1. The cutting and transport roller designed in this way, when used in a winding device, forms a counter-roller with an integrated reel changing device, such that the separating knife forms a component of the counter-roller itself, thus ensuring that the severed web end is reliably transferred to a winding shaft as a new web start can be done for winding.

Im einzelnen umfaßt die Rollenwechseleinrichtung das Trennmesser zum Durchtrennen der Materialbahn bei fertiggewickelter Wickelrolle und den an ihrem Umfang wirksamen Druckraum zum Festhalten des neuen Bahnanfangs und zu dessen Übergabe an eine neue Wickelwelle. Dabei ist zum Festhalten des neuen Bahnanfangs mittels des Druckraums an den Umfang der Gegenwalze ein Unterdruck anlegbar und für die Übergabe des Bahnanfangs an die neue Wickelwelle der Umfang der Gegenwalze über den Druckraum mit einem den Bahnanfang vom Walzenumfang abstoßenden Überdruck beaufschlagbar. Hierdurch wird nach dem Quertrennen der Materialbahn mittels des Trennmessers zunächst der neue Bahnanfang durch den Unterdruck sicher am Umfang der Gegenwalze festgehalten, während bei Erreichen der neuen Wickelwelle durch Umschalten des Druckraums auf Überdruck der neue Bahnanfang vom Umfang der Gegenwalze abgestoßen und dabei gleichzeitig auf die neue Wickelwelle bzw. deren Wickelhülse aufgewickelt wird.In particular, the roll changing device comprises the cutting knife for severing the material web when the winding roll is completely wound and the pressure space effective on its circumference for holding the new web start and for transferring it to a new winding shaft. A vacuum can be applied to the circumference of the counter roller to hold the new web start by means of the pressure chamber, and the circumference of the counter roller can be acted upon via the pressure chamber with an overpressure that repels the web start from the roller circumference for the transfer of the web start to the new winding shaft. As a result, after the material web has been cut crosswise by means of the cutting knife, the new web start is securely held on the circumference of the counter roller by the negative pressure, while when the new winding shaft is reached by switching the pressure chamber to overpressure, the new web start is pushed off the circumference of the counter roller and at the same time on the new one Winding shaft or its winding tube is wound up.

Zahlreiche weitere Merkmale und Vorteile der Erfindung ergeben sich aus den weiteren Ansprüchen und der nachstehenden Beschreibung in Verbindung mit der Zeichnung, in der mehrere Ausführungsbeispiele der erfindungsgemäßen Schneid- und Transportwalze schematisch veranschaulicht sind. In der Zeichnung zeigt:

Fig. 1
einen vertikalen Längsschnitt durch eine Wickelvorrichtung während eines laufenden Wickelvorgangs, wobei die Materialbahn im Uhrzeigersinn aufgewickelt wird,
Fig. 2
eine Darstellung entsprechend Fig. 1, wobei jedoch die Wickelrolle in der Fertigwickelstation fertiggewickelt ist und das Anwickeln in der Anwickelstation kurz bevorsteht,
Fig. 3
eine Darstellung entsprechend Fig. 2 mit der Wickelrichtung entgegen dem Uhrzeigersinn,
Fig. 4
einen Längsschnitt durch eine erfindungsgemäße Schneid- und Transportwalze nach einer ersten Ausführungsform,
Fig. 5
einen Querschnitt durch die Walze nach Fig. 4,
Fig. 6
einen Längsschnitt durch die Schneid- und Transportwalze nach einem weiteren Ausführungsbeispiel, beschränkt auf den Bereich eines Stirnendes der Walze, und
Fig. 7
einen Längsschnitt durch ein weiteres Ausführungsbeispiel der Schneid- und Transportwalze, wiederum beschränkt auf den Bereich eines Walzenstirnendes.
Numerous further features and advantages of the invention result from the further claims and the following description in conjunction with the drawing, in which several exemplary embodiments of the invention Cutting and transport roller are schematically illustrated. The drawing shows:
Fig. 1
a vertical longitudinal section through a winding device during an ongoing winding process, the material web being wound clockwise,
Fig. 2
a representation corresponding to FIG. 1, however, the winding roll is completely wound in the finished winding station and the winding in the winding station is imminent,
Fig. 3
2 with the winding direction counterclockwise,
Fig. 4
2 shows a longitudinal section through a cutting and transport roller according to the invention according to a first embodiment,
Fig. 5
3 shows a cross section through the roller according to FIG. 4,
Fig. 6
a longitudinal section through the cutting and transport roller according to a further embodiment, limited to the region of a front end of the roller, and
Fig. 7
a longitudinal section through a further embodiment of the cutting and transport roller, again limited to the area of a roller end.

Die in der Zeichnung dargestellte Wickelvorrichtung dient zum Aufwickeln von Materialbahnen wie beispielsweise Kunststoffolien, die von einem Extruder kontinuierlich hergestellt und als flache Bahnen aufgewickelt werden.The winding device shown in the drawing is used for winding material webs such as plastic films, which are continuously produced by an extruder and wound up as flat webs.

In einem als Ganzes mit 1 bezeichneten Vorrichtungsgestell mit zwei einander gegenüberliegenden gleichen Seitenwänden 2 ist ein als Ganzes mit 3 bezeichnetes Schwenklager um eine horizontale Drehachse 4 schwenkbar abgestützt. Das Schwenklager 3 ist von einem Doppelhebel gebildet, dessen konturengleiche Einzelhebel 5 und 6 jeweils in einer angrenzenden Seitenwand 2 des Vorrichtungsgestells 1 in innenseitig angebrachten Lagern drehbar gelagert sind. Die beiden Einzelhebel 5 und 6 sind jeweils von einem zweiarmigen Hebel gebildet, dessen beide Hebelarme 8 und 9, ausgehend von einem inneren, die Drehachse 4 umfassenden Bereich, jeweils mit einem nach außen offen ausmündenden Führungsschlitz 10 für den jeweiligen Wellenstumpf einer Wickelwelle 12 bzw. 13 versehen sind.In a device frame designated as a whole by 1 with two opposite side walls 2 lying opposite one another, a pivot bearing designated as a whole by 3 is pivotably supported about a horizontal axis of rotation 4. The pivot bearing 3 is formed by a double lever, the contour-identical single lever 5 and 6 each in an adjacent side wall 2 of the device frame 1 in bearings mounted on the inside are rotatably mounted. The two individual levers 5 and 6 are each formed by a two-armed lever, the two lever arms 8 and 9 of which, starting from an inner region encompassing the axis of rotation 4, each have a guide slot 10 which opens outwards to the respective stub shaft of a winding shaft 12 or 13 are provided.

Jeder Hebelarm 8, 9 ist durch seinen Führungsschlitz 10 in zwei parallele Armteile 14 und 15 geteilt, von denen der Armteil 14 über den Armteil 15 nach außen hin verlängert ist. In seinem äußeren Verlängerungsbereich bildet jeder Armteil 14 eine Endaufnahme 16 mit einer Anlageschulter 17 für die jeweilige, eine fertiggewickelte Wickelrolle 24 (Fig. 2 und 3) tragende Wickelwelle 12. Die beiden Hebelarme 8 und 9 jedes Einzelhebels 5 bzw. 6 sind gleich ausgebildet. In einer horizontalen Position des Schwenklagers 3, wie sie aus den Figuren 1 bis 3 ersichtlich ist, sind jedoch ihre Armteile 14 und 15 jeweils wechselseitig versetzt oberhalb und unterhalb der die Drehachse 4 des Schwenklagers 3 enthaltenden horizontalen Querebene 18 der Vorrichtung angeordnet.Each lever arm 8, 9 is divided by its guide slot 10 into two parallel arm parts 14 and 15, of which the arm part 14 is extended outwards via the arm part 15. In its outer extension region, each arm part 14 forms an end receptacle 16 with an abutment shoulder 17 for the respective winding shaft 12 carrying a completely wound winding roller 24 (FIGS. 2 and 3). The two lever arms 8 and 9 of each individual lever 5 and 6 are of identical design. In a horizontal position of the pivot bearing 3, as can be seen from FIGS. 1 to 3, however, their arm parts 14 and 15 are each offset alternately above and below the horizontal transverse plane 18 of the device containing the axis of rotation 4 of the pivot bearing 3.

Ebenso wie die Wickelwellen 12 und 13 ist eine Schneid- und Transportwalze 19 als Gegenwalze im Schwenklager 3 um eine horizontale Drehachse 20 drehbar abgestützt, die mit der Drehachse 4 des Schwenklagers 3 zusammenfällt. Die Gegenwalze wirkt bei dem dargestellten Beispiel als Kontaktwalze mit den Wickelwellen 12 und 13 bzw. dem auf diese aufgewickelten Bahnmaterial zusammen, das bei 21 strichpunktiert veranschaulicht ist und in Richtung des Laufpfeils 22 der Gegenwalze 19 zugeführt wird. Die Anordnung ist dabei so getroffen, daß die Drehachse 4 des Schwenklagers 3 und die mit dieser zusammenfallende Drehachse 20 der Gegenwalze 19 in einer vertikalen Teilungsebene 23 gelegen sind, die die Vorrichtung in zwei Arbeitsstationen I und II unterteilt. Die beiden Arbeitsstationen I und II sind von der horizontalen Position des Schwenklagers 3 definiert, in der die Drehachsen der Wickelwellen 12, 13 und die Drehachse 20 der Gegenwalze 19 in der gemeinsamen, außerdem die Drehachse 4 des Schwenklagers 3 enthaltenden horizontalen Querebene 18 der Vorrichtung angeordnet sind.Like the winding shafts 12 and 13, a cutting and transport roller 19 is rotatably supported as a counter roller in the pivot bearing 3 about a horizontal axis of rotation 20 which coincides with the axis of rotation 4 of the pivot bearing 3. In the example shown, the counter roller interacts as a contact roller with the winding shafts 12 and 13 or with the web material wound thereon, which is illustrated by dash-dotted lines at 21 and is fed to the counter roller 19 in the direction of the arrow 22. The arrangement is such that the axis of rotation 4 of the pivot bearing 3 and the axis of rotation 20 of the counter-roller 19 coinciding therewith are located in a vertical parting plane 23 which divides the device into two work stations I and II. The two workstations I and II are from the horizontal position of the pivot bearing 3, in which the axes of rotation of the winding shafts 12, 13 and the axis of rotation 20 of the counter-roller 19 are arranged in the common horizontal transverse plane 18 of the device, which also contains the axis of rotation 4 of the pivot bearing 3.

Die Gegenwalze 19 ist mit einem drehrichtungsumkehrbaren Antrieb für einen wahlweisen Umlauf in oder entgegen dem Uhrzeigersinn verbunden, wie auch die Wickelwellen 12 und 13 beidseits der Gegenwalze 19 in den beiden Arbeitsstationen I und II, denen die Gegenwalze 19 jeweils zur Hälfte zugeordnet ist, jeweils mit einem eigenen drehrichtungsumkehrbaren Antrieb für einen jeweils zu dem der Gegenwalze 19 gegenläufigen Umlauf verbunden sind. Diese Maßnahme dient einem wahlweisen Aufwickeln der Materialbahn 21 im oder entgegen dem Uhrzeigersinn auf die jeweilige Wickelwelle 12. Die in diesem Zusammenhang zum Einsatz kommenden drehrichtungsumkehrbaren Antriebe sind dem Fachmann in ihrer Anwendung bekannt und daher hier nicht näher dargestellt.The counter-roller 19 is connected to a reversible direction of rotation for an optional rotation clockwise or counterclockwise, as are the winding shafts 12 and 13 on both sides of the counter-roller 19 in the two workstations I and II, to which the counter-roller 19 is each assigned half its own reversible direction of rotation drive for each connected to the counter-roller 19 in the opposite direction. This measure serves for the optional winding of the material web 21 clockwise or counterclockwise onto the respective winding shaft 12. The reversible direction of rotation drives used in this connection are known to the person skilled in the art in their application and are therefore not shown in detail here.

Die Materialbahn 21 wird der Wickelvorrichtung über Führungswalzen zugeführt, von denen in der Zeichnung nur die vorrichtungsnahen dargestellt sind, nämlich zwei obere Leitwalzen 25 und 26 und zwei untere, an die Gegenwalze 19 angrenzende Umlenkwalzen 27 und 28. Die obere Leitwalze 25 ist in den Seitenwänden 2 des Vorrichtungsgestells 1 nahe der vertikalen Teilungsebene 23 der Vorrichtung frei drehbar gelagert, während die Leitwalze 26 und die Umlenkwalzen 27 und 28 in einem gesonderten Ausleger 29 im Inneren des Vorrichtungsgestells 1 frei drehbar gelagert sind.The material web 21 is fed to the winding device via guide rollers, of which only those close to the device are shown in the drawing, namely two upper guide rollers 25 and 26 and two lower deflection rollers 27 and 28 adjoining the counter roller 19. The upper guide roller 25 is in the side walls 2 of the device frame 1 near the vertical division plane 23 of the device is freely rotatably supported, while the guide roller 26 and the deflecting rollers 27 and 28 are freely rotatably mounted in a separate arm 29 inside the device frame 1.

In Abhängigkeit von der Wickelrichtung des Bahnmaterials 21 auf der jeweiligen Wickelwelle 12 in oder entgegen dem Uhrzeigersinn ist entweder die erste Umlenkwalze 27 oder die zweite Umlenkwalze 28 am Wickelprozeß beteiligt, wobei jeweils die andere Umlenkwalze in eine Ruhestellung verbracht werden kann, die in von der Gegenwalze 19 fortweisender Richtung aus der gemeinsamen Horizontalebene der Umlenkwalzen 27, 28 versetzt ist. Dies kann z.B. in nicht näher dargestellter Weise durch eine Verschiebung der jeweiligen Umlenkwalze 27, 28 in ihrem Lagerschenkel 32 nach oben mit entsprechender, lösbarer Festsetzung erfolgen.Depending on the winding direction of the web material 21 on the respective winding shaft 12 clockwise or counterclockwise, either the first deflection roller 27 or the second deflection roller 28 is involved in the winding process, the other deflection roller being brought into a rest position can be, which is offset in the direction away from the counter-roller 19 from the common horizontal plane of the deflection rollers 27, 28. This can be done, for example, in a manner not shown in detail by moving the respective deflecting roller 27, 28 upward in its bearing leg 32 with a corresponding, releasable fixing.

Die Gegenwalze 19 enthält als Rollenwechseleinrichtung ein Trennmesser zum Durchtrennen der Materialbahn 21 bei fertiggewickelter Wickelrolle 24 und umfaßt einen an ihrem Umfang 34 wirksamen Druckraum zum Festhalten des neuen Bahnanfangs und zu dessen Übergabe an eine neue Wickelwelle wie die Wickelwelle 13. Zum Festhalten des neuen Bahnanfangs ist mittels des wirksamen Druckraums an den Umfang 34 der Gegenwalze 19 ein Unterdruck anlegbar, so daß der Bahnanfang an den Umfang 34 der Gegenwalze 19 angesaugt wird, was einen lagegenauen Weitertransport des neuen Bahnanfangs mittels der Gegenwalze 19 gewährleistet. Für die Übergabe des Bahnanfangs an die neue Wickelwelle wie die Wickelwelle 13 erfolgt eine Umschaltung des wirksamen Druckraums auf Überdruck, wodurch die Saugwirkung aufgehoben und der Bahnanfang statt dessen vom Walzenumfang 34 abgestoßen wird, um an die neue Wickelwelle 13 bzw. eine auf diese aufgeschobene Wickelhülse, die ggf. in an sich bekannter Weise mit einem äußeren Klebstoffauftrag versehen sein kann, angewickelt zu werden.The counter-roller 19 contains, as a roll changing device, a separating knife for severing the material web 21 when the winding roll 24 is completely wound and comprises an effective pressure space on its circumference 34 for holding the new web start and for transferring it to a new winding shaft like the winding shaft 13. For holding the new web start a negative pressure can be applied to the circumference 34 of the counter roller 19 by means of the effective pressure chamber, so that the beginning of the web is sucked into the circumference 34 of the counter roller 19, which ensures that the new beginning of the web is transported in the correct position by means of the counter roller 19. For the transfer of the beginning of the web to the new winding shaft, like the winding shaft 13, the effective pressure space is switched to overpressure, as a result of which the suction effect is canceled and the beginning of the web is instead repelled by the roller circumference 34 in order to pass to the new winding shaft 13 or a winding tube pushed onto it , which can optionally be provided with an external adhesive application in a manner known per se, to be wound up.

Zur Ausübung dieser Funktionen als Gegenwalze umfaßt die Schneid- und Transportwalze 19, wie sie im einzelnen in verschiedenen Ausführungsbeispielen in den Figuren 4 bis 7 näher beschrieben ist, einen den Walzenumfang 34 definierenden hohlzylindrischen Walzenmantel 35, der an seinen beiden Stirnseiten durch je eine Stirnwand 36 und 37 geschlossen ist, um einen inneren Walzenhohlraum zu bilden. Der Walzenmantel 35 umfaßt bei dem dargestellten Beispiel einen Metallmantel 38 und einen auf diesen aufgezogenen Kautschuk- oder Gummimantel 39. Je nach dem Einsatzfall und dem Bahnmaterial, das von der Walze 19 zu handhaben ist, kann anstelle des Gummimantels 39 eine Beschichtung des Metallmantels 38 mit anderem Material vorgesehen sein, oder der Metallmantel 38 kann außenseitig verchromt sein.To perform these functions as a counter roller, the cutting and transport roller 19, as described in more detail in various exemplary embodiments in FIGS. 4 to 7, comprises a hollow cylindrical roller shell 35 which defines the roller circumference 34 and which is provided on each of its two ends by an end wall 36 and 37 is closed to form an inner roll cavity. In the example shown, the roller jacket 35 comprises a metal jacket 38 and a rubber or rubber jacket 39 mounted thereon, depending on the application and the web material that is drawn from the roller 19 handle, instead of the rubber jacket 39, a coating of the metal jacket 38 can be provided with other material, or the metal jacket 38 can be chromed on the outside.

In den inneren Walzenhohlraum ist ein Trennkörper 40 eingesetzt, der mit dem Walzenumfang 34 zwei sich im wesentlichen über die gesamte axiale Walzenlänge erstreckende Druckräume 41 und 42 begrenzt. Die beiden Druckräume 41 und 42 stehen über eine Anordnung von Durchtrittsbohrungen 43 und 44 durch den Walzenmantel 35 hindurch mit der Umgebung in Verbindung. Bei dem dargestellten Beispiel sind mehrere axiale Reihen von Durchtrittsbohrungen 43 bzw. 44 vorgesehen.A separating body 40 is inserted into the inner roller cavity and, with the roller circumference 34, delimits two pressure spaces 41 and 42 which extend essentially over the entire axial roller length. The two pressure chambers 41 and 42 are connected to the environment via an arrangement of through bores 43 and 44 through the roller shell 35. In the example shown, a plurality of axial rows of through bores 43 and 44 are provided.

Außerhalb des Bereichs der Durchtrittsbohrungen 43 und 44 ist der Walzenmantel 35 außerdem mit einem Durchtrittsschlitz 45 versehen, der sich seinerseits im wesentlichen über die gesamte axiale Walzenlänge erstreckt. Durch den Durchtrittsschlitz 45 hindurch erstreckt sich ein Trennmesser 46, das seinerseits im inneren Walzenhohlraum, und zwar bei dem dargestellten Beispiel ebenfalls am Trennkörper 40, abgestützt ist.Outside the area of the through bores 43 and 44, the roll shell 35 is also provided with a through slot 45, which in turn extends essentially over the entire axial roll length. A separating knife 46 extends through the passage slot 45 and is in turn supported in the inner roller cavity, also in the example shown on the separating body 40.

Wie insbesondere die Figuren 4 und 5 zeigen, ist der Trennkörper 40 als Hohlprofilkörper mit einem Mehrkammerprofil ausgebildet, wobei eine mittlere, die Walzenachse 20 aufnehmende Kammer eine Zuführkammer 47 bildet, über die ein Druckmedium von einer äußeren Druckmediumquelle zugeführt und wahlweise in den Druckraum 41 oder 42 eingespeist wird. Im Bereich zwischen der Zuführkammer 47 und dem Durchtrittsschlitz 45 ist das Trennmesser 46 abgestützt.As shown in FIGS. 4 and 5 in particular, the separating body 40 is designed as a hollow profile body with a multi-chamber profile, a central chamber receiving the roller axis 20 forming a supply chamber 47 via which a pressure medium is supplied from an external pressure medium source and optionally into the pressure chamber 41 or 42 is fed. The separating knife 46 is supported in the area between the feed chamber 47 and the passage slot 45.

Der Trennkörper 40 hat das insbesondere aus Fig. 5 ersichtliche dreikammerige Querschnittsprofil mit einem mittleren, die Zuführkammer 47 umgrenzenden kastenförmigen Teil und zwei diesem gegenüberliegenden, sich trapezförmig zum Walzenmantel 35 hin verjüngenden Außenteilen 48 und 49. Der Trennkörper 40 erstreckt sich dabei diametral beidseits einer das Trennmesser 46 und dessen Durchtrittsschlitz 45 enthaltenden Durchmesserebene 50 durch den inneren Walzenhohlraum und ist an seinen radialen Enden mit seinen Außenteilen 48 und 49 jeweils mit dem Innenmantel 38 der Walze 19 sowie mit seinen stirnseitigen Enden mit den Innenseiten der Stirnwände 36 und 37 der Walze 19 fest verbunden, zum Beispiel verschweißt.The separating body 40 has the three-chamber cross-sectional profile, which can be seen in particular in FIG. 5, with a central box-shaped part, which delimits the feed chamber 47, and two trapezoidal parts opposite it outer parts 48 and 49 tapering towards the roller shell 35. The separating body 40 extends diametrically on both sides of a diameter plane 50 containing the separating knife 46 and its passage slot 45 through the inner roller cavity and is at its radial ends with its outer parts 48 and 49 each with the inner shell 38 the roller 19 and with its front ends firmly connected to the inside of the end walls 36 and 37 of the roller 19, for example welded.

Der Trennkörper 40 ist symmetrisch beidseits der Durchmesserebene 50 ausgebildet, so daß die beiden Druckräume 41 und 42 ihrerseits entsprechend symmetrisch ausgebildet sind, wobei ihre Durchtrittsbohrungen 43 und 44 einander diametral gegenüberliegend im Walzenmantel 35 angeordnet sind. Das Muster und die Anordnung der Durchtrittsbohrungen 43 und 44 können jedoch in Abhängigkeit von dem jeweiligen Anwendungsfall gegenüber dem in Fig. 5 zeichnerisch dargestellten Beispiel verändert werden. Die nur über die Durchtrittsbohrungen 43 bzw. 44 mit der Umgebung in Verbindung stehenden, im übrigen abgedichtet ausgebildeten Druckräume 41 und 42 sind mit der äußeren Druckmediumquelle wahlweise verbindbar.The separating body 40 is formed symmetrically on both sides of the diameter plane 50, so that the two pressure spaces 41 and 42 are in turn correspondingly symmetrical, their through bores 43 and 44 being arranged diametrically opposite one another in the roller jacket 35. The pattern and the arrangement of the through bores 43 and 44 can, however, be changed depending on the respective application compared to the example shown in FIG. 5. The pressure chambers 41 and 42, which are only connected to the environment via the through bores 43 and 44 and are otherwise sealed, can optionally be connected to the external pressure medium source.

Bei dem in den Fig. 4 und 5 dargestellten Beispiel ist eine Zuführleitung 51 an die dem Druckraum 41 zugewandte Wand 52 der Zuführkammer 47 angelegt, wobei durch eine entsprechende Öffnung in der Wand 52 der Druckraum 41 mit dem Druckmedium verbunden wird, während der andere Druckraum 42 vom Druckmedium abgeschlossen ist. Soll andererseits der Druckraum 42 mit Druckmedium verbunden werden, so wird die Zuleitung 51, nach Lösen ihrer Verbindung mit der Wand 52, um 180° verschwenkt und an die der Wand 52 gegenüberliegende Wand 53 angelegt und mit dieser verbunden, wobei dann über eine entsprechende Öffnung in der Wand 53 der Druckraum 42 mit dem Druckmedium verbunden wird, während der Druckraum 41 kein Druckmedium erhält, d.h. keinem Unterdruck oder Überdruck ausgesetzt wird.In the example shown in FIGS. 4 and 5, a feed line 51 is applied to the wall 52 of the feed chamber 47 facing the pressure chamber 41, the pressure chamber 41 being connected to the pressure medium through a corresponding opening in the wall 52, while the other pressure chamber 42 is completed by the print medium. If, on the other hand, the pressure chamber 42 is to be connected to pressure medium, the supply line 51, after releasing its connection to the wall 52, is pivoted through 180 ° and placed against the wall 53 opposite the wall 52 and connected to it, then via a corresponding opening in the wall 53, the pressure chamber 42 is connected to the pressure medium, while the pressure chamber 41 receives no pressure medium, ie is not exposed to negative pressure or excess pressure.

Das Trennmesser 46 ist bei dem in den Figuren 4 und 5 veranschaulichten Ausführungsbeispiel von einer schmalen hochstehenden Schneidklinge 54 gebildet, die mit einem freien Schneidkantenendbereich durch den Durchtrittsschlitz 45 vorsteht, so daß sie den Walzenmantel 35, d.h. den Außenumfang 34 der Walze 19, geringfügig überragt. Zur Durchführung eines Trennschnittes durch die Materialbahn 21 ist die Schneidklinge 45 von einem Stirnende zum anderen Stirnende der Walze 19 linear entlang dem Durchtrittsschlitz 45 mit hoher Geschwindigkeit bewegbar. Dabei besitzt die Schneidklinge 54 in Längsrichtung des Durchtrittsschlitzes 45 einander gegenüberliegende Schneidkanten 55, und ein Trennschnitt durch die Materialbahn 21 kann bei jeder Bewegung der Schneidklinge 54 von Stirnende zu Stirnende der Walze 19 mit der jeweils vorauslaufenden Schneidkante 55 durchgeführt werden.The separating knife 46 is formed in the exemplary embodiment illustrated in FIGS. 4 and 5 by a narrow, upstanding cutting blade 54 which projects with a free cutting edge end region through the through-slot 45 so that it separates the roller jacket 35, i.e. slightly exceeds the outer circumference 34 of the roller 19. In order to carry out a separating cut through the material web 21, the cutting blade 45 can be moved linearly from end to end of the roller 19 along the passage slot 45 at high speed. In this case, the cutting blade 54 has cutting edges 55 lying opposite one another in the longitudinal direction of the passage slot 45, and a separating cut through the material web 21 can be carried out with each leading movement of the cutting blade 54 from end to end of the roller 19 with the respective leading cutting edge 55.

Die lineare Bewegung der Schneidklinge 54 entlang dem Durchtrittsschlitz 45 erfolgt mittels eines Druckmediumantriebs, der von einem doppeltwirkenden druckmediumbetätigten Arbeitszylinder 56 gebildet ist. Als Druckmedium zur Betätigung des Arbeitszylinders 56 kommt vorzugsweise Druckluft in Betracht. Der Zylinder 56 ist im Außenteil 49 des dreikammerigen Trennkörpers 40 auf einer Innenwand 57 mit seinen beiden endseitigen Anschlußteilen 58 und 59 abgestützt. Zwischen den beiden Anschlußteilen 58 und 59 erstreckt sich ein Verbindungsrohr 60. Die Schneidklinge 54 ist von einem kolbenstangenlosen Kolben (nicht dargestellt) abgestützt und mit diesem über einen schmalen Zwischensteg 61 verbunden, der mit engem Bewegungsspiel in einem dem Durchtrittsschlitz 45 im Walzenmantel 35 gegenüberliegenden Führungsschlitz des Verbindungsrohrs 60 des Arbeitszylinders 56 geführt ist. Der Arbeitszylinder 56 erstreckt sich im wesentlichen über die gesamte axiale Länge der Walze 19, wobei für das Verbindungsrohr 60 und den in diesem geführten Kolben ein ineinanderpassendes Rund- oder Polygonprofil, beispielsweise das aus Fig. 5 ersichtliche Rechteckprofil vorgesehen ist.The linear movement of the cutting blade 54 along the passage slot 45 takes place by means of a pressure medium drive, which is formed by a double-acting pressure medium-operated working cylinder 56. Compressed air is preferably used as the pressure medium for actuating the working cylinder 56. The cylinder 56 is supported in the outer part 49 of the three-chamber separating body 40 on an inner wall 57 with its two end-side connection parts 58 and 59. A connecting tube 60 extends between the two connecting parts 58 and 59. The cutting blade 54 is supported by a rodless piston (not shown) and connected to the latter via a narrow intermediate web 61, which with tight movement play in a guide slot opposite the passage slot 45 in the roller jacket 35 of the connecting tube 60 of the working cylinder 56 is guided. The working cylinder 56 extends essentially over the entire axial length of the roller 19, with a fitting for the connecting tube 60 and the piston guided therein Round or polygonal profile, for example the rectangular profile shown in FIG. 5 is provided.

Die Druckluftzufuhr zum Arbeitszylinder 56 erfolgt über eine an sich bekannte Dreheinführung 62 mit zwei Zuführkanälen, die über äußere Anschlüsse 63 und 64 mit einer Druckluftzuleitung in Verbindung stehen. Über einen Gewindezapfen 65 ist die Dreheinführung 62 mit einem stirnseitigen Lagerzapfen 66 der Walze 19 fest verschraubt. Der Lagerzapfen 66 hat in seinem Inneren zwei konzentrische Kanäle 67 und 68, die mit den beiden Druckluftkanälen der Dreheinführung 62 in Verbindung stehen. Vom Kanal 67 führt eine Leitung 69 zum Anschlußteil 58 des Arbeitszylinders 56, während vom Kanal 68 eine Leitung 70 zum Anschlußteil 59 des Arbeitszylinders 56 führt.The compressed air is supplied to the working cylinder 56 via a rotary inlet 62 known per se with two supply channels which are connected to a compressed air supply line via external connections 63 and 64. The rotary entry 62 is firmly screwed to a front bearing journal 66 of the roller 19 via a threaded journal 65. The bearing journal 66 has two concentric channels 67 and 68 in its interior, which are connected to the two compressed air channels of the rotary inlet 62. A line 69 leads from the channel 67 to the connecting part 58 of the working cylinder 56, while a line 70 leads from the channel 68 to the connecting part 59 of the working cylinder 56.

Die mit dem Zylinderkolben verbundene Messerklinge 54 ist in Fig. 4 in einer ihrer beiden Endpositionen nahe der Stirnwand 36 gezeigt, in der der Zylinderkolben an den Anschlußteil 58 angrenzt. Zur Duchführung eines Schneidvorgangs wird dem Anschlußteil 58 über die Leitung 69 Druckluft mit hohem Druck zugeführt, so daß sich die kolbengestützte Schneidklinge 54 schlagartig entlang dem Durchtrittsschlitz 45 zur Stirnwand 37 der Walze 19 hin bewegt und dabei, ohne ein Zusammenwirken mit einem Gegenmesser, einen im wesentlichen rechtwinkligen Trennschnitt durch die Materialbahn 21 ausführt. Die Endstellung der Messerklinge 54 nahe der Stirnwand 37 entspricht der in Fig. 4 gezeigten Stellung nahe der Stirnwand 36, d.h. der Zylinderkolben mit der Messerklinge 54 befindet sich kurz vor dem Anschlußteil 59, um bei Druckbeaufschlagung der Verbindungsleitung 70 und damit des Anschlußteils 59 wiederum schlagartig in entgegengesetzter Richtung entlang dem Durchtrittsschlitz 45 zur Ausführung eines Trennschnittes durch die Materialbahn 21 getrieben zu werden.The knife blade 54 connected to the cylinder piston is shown in FIG. 4 in one of its two end positions near the end wall 36, in which the cylinder piston adjoins the connecting part 58. To carry out a cutting process, the connecting part 58 is supplied with compressed air at high pressure via the line 69, so that the piston-supported cutting blade 54 moves suddenly along the passage slot 45 to the end wall 37 of the roller 19 and, without interacting with a counter knife, one in executes a substantially right-angled separating cut through the material web 21. The end position of the knife blade 54 near the end wall 37 corresponds to the position near the end wall 36 shown in Fig. 4, i.e. the cylinder piston with the knife blade 54 is located shortly in front of the connecting part 59, in order to be suddenly driven in the opposite direction along the passage slot 45 in order to perform a separating cut through the material web 21 when the connecting line 70 and thus the connecting part 59 are pressurized.

Der Lagerzapfen 66 dient im übrigen, ebenso wie ein weiterer Lagerzapfen 71 in der Stirnwand 37, in an sich bekannter Weise dem Drehantrieb der Walze 19. Dabei ist der Lagerzapfen 71 ebenfalls mit einer Dreheinführung versehen, die hier mit 72 bezeichnet ist. Im Gegensatz zur Dreheinführung 62 besitzt die Dreheinführung 72 nur einen zentralen Druckmediumkanal, der über einen äußeren Anschluß 73 mit einer Druckmediumzuleitung verbunden ist. Über einen hohlen Gewindezapfen 74 steht der zentrale Druckmediumkanal mit einem inneren Druckmediumkanal 75 des Lagerzapfens 71 in Verbindung, von dessen innerem Ende die Druckmediumleitung 51 für die Versorgung des Druckraums 41 oder 42 mit Luft als Druckmedium ausgeht. Der Druckmediumkanal 75 ist über die Dreheinführung 72 wahlweise mit einer äußeren Unterdruckquelle oder einer Überdruckquelle durch einen entsprechenden Umschaltungsvorgang im Zuleitungssystem verbindbar.The bearing journal 66 serves in the rest, just like a further bearing journal 71 in the end wall 37, in itself the rotary drive of the roller 19 in a known manner. The bearing journal 71 is also provided with a rotary lead-in, which is designated here by 72. In contrast to the rotary inlet 62, the rotary inlet 72 has only one central pressure medium channel which is connected to a pressure medium feed line via an outer connection 73. The central pressure medium channel is connected via a hollow threaded pin 74 to an inner pressure medium channel 75 of the bearing pin 71, from the inner end of which the pressure medium line 51 for supplying the pressure chamber 41 or 42 with air as the pressure medium starts. The pressure medium channel 75 can be connected via the rotary inlet 72 either to an external vacuum source or to an excess pressure source by means of a corresponding switchover process in the supply system.

Die Verbindung mit einer äußeren Unterdruckquelle bedeutet, daß durch die Durchtrittsbohrungen 43 oder 44 Luft aus der Umgebung angesaugt bzw. eine über den Durchtrittsbohrungen 43 oder 44 liegende Materialbahn in diesem Bereich an den Walzenumfang 34 angesaugt wird. Bei Umschaltung von der Unterdruckquelle auf die Überdruckquelle wird dem Druckmediumkanal 75 und damit über die Leitung 51 dem Druckraum 41 oder 42 Drucklauft mit einem solchen Überdruck zugeführt, daß die zuvor im Bereich der Durchtrittsbohrungen 43 oder 44 festgehaltene Materialbahn durch die auf die Durchtrittsbohrungen 43 bzw. 44 wirkende Druckluft vom Walzenumfang 34 abgestoßen wird, um, bei dem vorstehend beschriebenen Anwendungsfall, auf der Wickelhülse einer neuen Wickelwelle 13 im Zuge der Durchführung eines Rollenwechels festgelegt zu werden.The connection to an external vacuum source means that air is drawn in from the surroundings through the through bores 43 or 44, or a material web lying above the through bores 43 or 44 is sucked into the roller circumference 34 in this area. When switching from the negative pressure source to the positive pressure source, the pressure medium channel 75 and thus via line 51 is supplied to the pressure chamber 41 or 42 with a pressure such that the material web previously held in the area of the through bores 43 or 44 passes through the through bores 43 or 44 acting compressed air is expelled from the roller circumference 34 in order, in the application described above, to be fixed on the winding tube of a new winding shaft 13 in the course of performing a roll change.

Bei dem Ausführungsbeispiel einer als Gegenwalze eines Wicklers einsetzbaren Schneid- und Transportwalze 19 gemäß Fig. 6 werden, wie auch im Falle des nachfolgend noch zu beschreibenden weiteren Ausführungsbeispiels gemäß Fig. 7, für mit dem Ausführungsbeispiel gemäß den Figuren 4 und 5 gleiche bzw. übereinstimmende Bauteile die gleichen Bezugszeichen ohne nochmalige Beschreibung verwendet.In the exemplary embodiment of a cutting and transport roller 19 according to FIG. 6, which can be used as a counter roller of a winder, as in the case of the further exemplary embodiment according to FIG. 7 to be described below, for the exemplary embodiment according to FIGS. 4 and 5 same or corresponding components used the same reference numerals without a repeated description.

Bei dem Ausführungsbeispiel gemäß Fig. 6 ist das Trennmesser 46 von einer Schneidklinge 76 mit einer äußeren Schneidkante 77 gebildet, deren Länge im wesentlichen gleich der des Durchtrittsschlitzes 45 ist. Die Schneidkante 77, die nach Art eines Zackenmessers geformt ist, ist normalerweise, wie dies Fig. 6 veranschaulicht, innerhalb des Durchtrittsschlitzes 45 gehalten, ohne den Walzenumfang 34 zu überragen. Zur Durchführung eines Trennschnittes durch die Materialbahn 21 quer zu deren Laufrichtung wird die Schneidklinge 76 kurzzeitig mit hoher Geschwindigkeit in radialer Richtung des Walzendurchmessers aus dem Durchtrittsschlitz 45 heraus- und wieder zurückbewegt.6, the separating knife 46 is formed by a cutting blade 76 with an outer cutting edge 77, the length of which is substantially equal to that of the passage slot 45. The cutting edge 77, which is shaped in the manner of a serrated knife, is normally held within the through-slot 45, as illustrated in FIG. 6, without projecting beyond the roller circumference 34. In order to carry out a separating cut through the material web 21 transversely to its running direction, the cutting blade 76 is briefly moved out of the passage slot 45 and back again at high speed in the radial direction of the roller diameter.

Hierzu sind doppeltwirkende druckmediumbetriebene Hubzylinder 78, vorzugsweise Druckluftzylinder, in den beiden Endbereichen der Schneidklinge 76 vorgesehen, die an die jeweilige Walzenstirnwand 36 bzw. 37 angrenzen. Die Hubzylinder 78 sind jeweils auf der Innenwand 57 des Trennkörpers 40 abgestützt. Die Kolbenstange 79 des jeweiligen Hubzylinders 78 ist an der Innenseite der Schneidklinge 76 befestigt. Für den Vor- und Rückhub des Kolbens der Hubzylinder 78 sind in an sich bekannter Weise beidseits der Stirnseiten des Kolbens einmündende Druckmediumzuführleitungen 80 und 81 vorgesehen. Die Versorgung der Leitungen 80 und 81 erfolgt über eine Dreheinführung 62 und einem Lagerzapfen 66 gemäß Fig. 4, wie auch der andere, in Fig. 6 nicht zur Darstellung kommende Lagerzapfen dem Lagerzapfen 71 gemäß Fig. 4 entspricht.For this purpose, double-acting pressure medium-operated lifting cylinders 78, preferably compressed air cylinders, are provided in the two end regions of the cutting blade 76, which adjoin the respective end walls 36 and 37 of the rollers. The lifting cylinders 78 are each supported on the inner wall 57 of the separating body 40. The piston rod 79 of the respective lifting cylinder 78 is attached to the inside of the cutting blade 76. For the forward and return stroke of the piston of the lifting cylinders 78, pressure medium supply lines 80 and 81 which open out on both sides of the end faces of the piston are provided in a manner known per se. The supply of the lines 80 and 81 takes place via a rotary lead-in 62 and a bearing journal 66 according to FIG. 4, like the other bearing journal which is not shown in FIG. 6 corresponds to the bearing journal 71 according to FIG. 4.

Sofern ausschließlich thermoplastische Folien zur Verarbeitung kommen, kann die Schneidklinge 76 durch einen beheizbaren Widerstandsdraht mit entsprechender Halterung bei im übrigen gleicher Betätigungsweise, wie anhand der Fig. 6 erläutert, zur Durchführung eines Schmelzschnittes verwendet werden.If only thermoplastic foils are used for processing, the cutting blade 76 can be operated by a heatable resistance wire with a corresponding holder with the same method of operation as the one shown in FIG Fig. 6 explains, can be used to perform a fusion cut.

Bei dem Ausführungsbeispiel gemäß Fig. 7 ist das Trennmesser 46, das wiederum als Zackenmesserklinge 76 mit gezackter Schneidkante 78 ausgebildet ist, über ein im inneren Hohlraum der Walze 19 angebrachtes Parallelführungsgestänge 82 durch einen äußeren druckmediumbetriebenen Schubstangenantrieb 83 betätigbar.In the exemplary embodiment according to FIG. 7, the separating knife 46, which in turn is designed as a serrated knife blade 76 with a serrated cutting edge 78, can be actuated via a parallel guide linkage 82 attached in the inner cavity of the roller 19 by means of an outer push rod drive 83 operated by pressure medium.

Das Parallelführungsgestänge 82 umfaßt einen Lenker 84, der bei 85 an der Messerklinge 76 und bei 86 an einen Halter 87 angelenkt ist, der seinerseits auf der Innenwand 57 des Trennkörpers 40 befestigt ist. Der Lenker 84 ist durch die Innenwand 57 hindurchgeführt und an seinem inneren Ende mit einer Schubstange 88 des Schubstangenantriebs 83 verbunden. Hierzu besitzt die Schubstange 88 an ihrem inneren Ende einen Eingriffsbolzen 89 etwa in Höhe der Drehachse 20 der Walze 19, der in ein Langloch 90 des Lenkerarms 91 diesseits der Drehverbindung 86 eingreift. In Fig. 7 ist die Schneidklinge 76 in ihrer Ruhestellung gezeigt, in der sie mit ihrer Schneidkante 77 innerhalb des Durchtrittsschlitzes 45 liegt. An dem der Stirnwand 36 der Walze 19 zugewandten Ende der Schneidklinge 76 umfaßt das Parallelführungsgestänge 82 eine entsprechende Lenkeranordnung, mit Ausnahme des inneren Lenkerarms 91, in der in Fig. 7 gezeigten Ausrichtung des Lenkers 84.The parallel guide linkage 82 comprises a link 84, which is articulated at 85 on the knife blade 76 and at 86 to a holder 87, which in turn is fastened on the inner wall 57 of the separating body 40. The link 84 is guided through the inner wall 57 and connected at its inner end to a push rod 88 of the push rod drive 83. For this purpose, the push rod 88 has at its inner end an engagement pin 89 approximately at the level of the axis of rotation 20 of the roller 19, which engages in an elongated hole 90 of the link arm 91 on this side of the rotary connection 86. 7 shows the cutting blade 76 in its rest position, in which it lies with its cutting edge 77 within the passage slot 45. At the end of the cutting blade 76 facing the end wall 36 of the roller 19, the parallel guide linkage 82 comprises a corresponding link arrangement, with the exception of the inner link arm 91, in the orientation of the link 84 shown in FIG. 7.

Der Schubstangenantrieb 83 umfaßt ferner einen druckmediumbetriebenen Arbeitszylinder 92, vorzugsweise einen Pneumatikhubzylinder, dessen Kolbenstange 93 durch eine Kupplung 94 fest mit der Schubstange 88 verbunden ist. Die Schubstange 88 ist durch den stirnseitigen Lagerzapfen 95 der Walze 19 hindurchgeführt, der zu diesem Zweck zugleich als Führungsbuchse ausgebildet ist. Der andere, in Fig. 7 nicht zur Darstellung kommende Lagerzapfen ist entsprechend dem Lagerzapfen 71 nach Fig. 4 ausgebildet.The push rod drive 83 further comprises a pressure medium-operated working cylinder 92, preferably a pneumatic lifting cylinder, the piston rod 93 of which is fixedly connected to the push rod 88 by a coupling 94. The push rod 88 is passed through the end bearing journal 95 of the roller 19, which is at the same time designed as a guide bush for this purpose. The other bearing journal, which is not shown in FIG. 7, is designed corresponding to the bearing journal 71 according to FIG. 4.

Für ein kurzzeitiges Ausfahren des Trennmessers 46 in Richtung des Pfeils 96 wird die Schubstange 88 mittels des Hubzylinders 92 in Richtung des Pfeils 97 nach innen bewegt, wobei die Lenker 84 entsprechend dem Bewegungspfeil 98 um ihren Drehpunkt 86 verschwenken. Hierdurch wird die Schneidklinge 76 mit einer kombinierten Radial- und Axialbewegung mit hoher Geschwindigkeit aus dem Durchtrittsschlitz 45 heraus- und bei der Umsteuerung des Hubzylinders 92 wieder zurückbewegt. Durch diese Art der Herausbewegung der Schneidklinge 76 entsteht ein sog. ziehender Schnitt, der in Abhängigkeit von dem zu schneidenden Material vorteilhaft gegenüber anderen Ausführungsformen des Messers 46 sein kann.For a brief extension of the cutting knife 46 in the direction of arrow 96, the push rod 88 is moved inwards in the direction of arrow 97 by means of the lifting cylinder 92, the links 84 pivoting about their pivot point 86 in accordance with the movement arrow 98. As a result, the cutting blade 76 is moved out of the passage slot 45 with a combined radial and axial movement at high speed and moved back again when the lifting cylinder 92 is reversed. This type of movement of the cutting blade 76 creates a so-called pulling cut, which, depending on the material to be cut, can be advantageous compared to other embodiments of the knife 46.

In Fig. 1 ist die Wickelvorrichtung im laufenden Wickelbetrieb dargestellt, wobei die zulaufende Materialbahn 21 unter Umschlingung der Umlenkrolle 27 über die Gegenwalze 19 der im Uhrzeigersinn umlaufenden Wickelrolle 24 zugeführt wird. In der Arbeitsstation I ist bereits eine neue Wickelwelle 13 eingesetzt worden.In Fig. 1, the winding device is shown in the ongoing winding operation, the incoming material web 21 is fed around the counter-roller 19 of the winding roller 24 rotating clockwise while wrapping the deflection roller 27. A new winding shaft 13 has already been inserted in work station I.

Die. Fig. 2 zeigt die im Uhrzeigerdrehsinn fertiggewickelte Wickelrolle 24, kurz bevor in der Arbeitsstation I ein neuer Bahnanfang auf die Wickelwelle 13 aufgewickelt wird. Der Rollenwechsel wird in der Weise eingeleitet, daß bei Erreichen eines bestimmten Wickeldurchmessers für die Wickelrolle 24 ein Steuersignal gegeben wird, durch das, beim Aufwickeln im Uhrzeigersinn, der Druckraum 42 von der äußeren Unterdruckquelle her einen Unterdruck aufbaut, so daß durch die Durchtrittsbohrungen 44 im Walzenmantel 35 die zulaufende Materialbahn 21 an den Walzenumfang 34 der Gegenwalze 19 angesaugt wird. Der Schneidvorgang mittels des Trennmessers 46 erfolgt durch entsprechende Antriebsansteuerung während der kontinuierlichen Zuführung der Materialbahn 21 zwischen der Umlenkwalze 27 und der neuen Wickelwelle 13. Die Umlenkwalze 28 befindet sich hierbei in ihrer Ruhestellung.The. FIG. 2 shows the winding roll 24 which has been completely wound clockwise just before a new start of the web is wound onto the winding shaft 13 in the work station I. The roll change is initiated in such a way that when a certain winding diameter is reached for the winding roll 24, a control signal is given, by which, when winding in a clockwise direction, the pressure chamber 42 builds up a vacuum from the external vacuum source, so that through the through bores 44 in Roll jacket 35, the incoming material web 21 is sucked onto the roll circumference 34 of the counter roll 19. The cutting process by means of the separating knife 46 is carried out by corresponding drive control during the continuous feeding of the material web 21 between the deflection roller 27 and the new winding shaft 13. The deflection roller 28 is in its rest position.

Das mittels des Trennmessers 46 schlagartig abgetrennte Bahnende wird über die Durchtrittsbohrungen 44 des Druckraums 42 aufgrund des herrschenden Unterdrucks weiterhin an den Walzenumfang 34 angepreßt und dadurch von dieser weitertransportiert, bis die nunmehr in Drehbewegung versetzte neue Wickelwelle 13 erreicht ist. Sobald das abgetrennte Bahnende die Kontaktlinie zwischen der Gegenwalze 19 und der auf die Wickelwelle 13 aufgeschobenen Wickelhülse erreicht, wird eine Umsteuerung in der Weise vorgenommen, daß der Druckraum 42 mit der äußeren Überdruckquelle verbunden wird, so daß der Druckraum 42 mit Überdruck bzw. Druckluft beaufschlagt wird. Dieses hat zur Folge, daß sich das Bahnende der Materialbahn 21 von der Gegenwalze 19 löst und als neuer Bahnanfang auf die beispielsweise mit Klebestreifen bestückte Wickelhülse der neuen Wickelwelle 13 übergeben wird.The end of the web cut off suddenly by means of the cutting knife 46 is further pressed against the roller circumference 34 via the through bores 44 of the pressure chamber 42 due to the negative pressure prevailing, and is thereby transported further by the latter until the new winding shaft 13, which is now set in rotation, is reached. As soon as the separated web end reaches the contact line between the counter roller 19 and the winding tube pushed onto the winding shaft 13, a reversal is carried out in such a way that the pressure chamber 42 is connected to the external source of excess pressure, so that the pressure chamber 42 is subjected to excess pressure or compressed air becomes. The consequence of this is that the web end of the material web 21 detaches from the counter roller 19 and is transferred as the new web start to the winding tube 13 of the new winding shaft 13, which is, for example, equipped with adhesive strips.

Abgesehen von den Drehrichtungen und dementsprechend der Zuführung der Materialbahn 21 über die Umlenkwalze 28 veranschaulicht die Fig. 3 einen Momentanzustand des Wickelvorgangs entsprechend Fig. 2. Der Rollenwechsel erfolgt hierbei im Prinzip in der gleichen Weise wie anhand der Fig. 2 beschrieben, wobei jedoch die Saugwirkung über die Durchtrittsbohrungen 43 des Druckraums 41 entsprechend der Drehrichtung der Gegenwalze 19 an deren Walzenumfang 34 angelegt wird und die Quertrennung mittels des Messers 46 zwischen der Umlenkwalze 28 und der Kontaktlinie zwischen der Gegenwalze 19 und der Wickelrolle 24 erfolgt. Das abgetrennte angesaugte Bahnende wird sodann in der beschriebenen Weise weitertransportiert und an die neue Wickelwelle 13 übergeben. Es schließen sich sodann die im Zusammenhang mit Fig. 2 erläuterten Vorgänge an.Apart from the directions of rotation and accordingly the feeding of the material web 21 via the deflecting roller 28, FIG. 3 illustrates a momentary state of the winding process according to FIG. 2. The reel change takes place in the same way in principle as described with reference to FIG. 2, but with the Suction is applied through the through-holes 43 of the pressure chamber 41 in accordance with the direction of rotation of the counter-roller 19 on its roller circumference 34 and the transverse separation takes place by means of the knife 46 between the deflection roller 28 and the contact line between the counter-roller 19 and the winding roller 24. The separated, drawn-in web end is then transported on in the manner described and transferred to the new winding shaft 13. The processes explained in connection with FIG. 2 then follow.

Während der Entnahme der Wickelrolle 24 aus der Arbeitsstation II besteht ausreichend Zeit, einem Wickelwellenmagazin eine neue Wickelwelle 13 zu entnehmen, mit einer Wickelhülse, üblicherweise aus Pappe mit äußerem Klebestreifen, zu versehen und in der Arbeitsstation I in Position zu bringen, um sie zur Durchführung des Anwickelvorgangs rechtzeitig in der vorgegebenen Drehrichtung in Drehung zu versetzen. Die Verriegelung der Wickelwellen 12 und 13 in ihrem jeweiligen Führungsschlitz 10 des Schwenklagers 3 kann mit geeigneten Mitteln, die dem Fachmann auf diesem Gebiet ohne weiteres zur Verfügung stehen, zum Beispiel mittels einer Klauensicherung, durchgeführt werden.During the removal of the winding roll 24 from the work station II there is sufficient time to remove a new winding shaft 13 from a winding shaft magazine, to provide it with a winding tube, usually made of cardboard with an external adhesive strip, and in the work station I in Bring position in order to set them in rotation in the specified direction of rotation in order to carry out the winding process. The winding shafts 12 and 13 can be locked in their respective guide slots 10 of the pivot bearing 3 by suitable means which are readily available to the person skilled in the art in this field, for example by means of a claw safety device.

Der Rollenwechsel gestaltet sich schnell und problemlos einfach, da mit der erfindungsgemäßen Schneid- und Transportwalze als Gegenwalze 19 die Materialbahn 21, ohne ihren Zulauf zu unterbrechen, mit einem Minimum an Zeitaufwand quergetrennt und der neue Bahnanfang sicher auf die neue Wickelwelle 13 transportiert werden kann.The reel change is quick and easy, since with the cutting and transport roller according to the invention as the counter roller 19, the material web 21 can be cut without interrupting its inflow, with a minimum of time and the new web start can be safely transported to the new winding shaft 13.

Es versteht sich, daß die erfindungsgemäße Schneid- und Transportwalze 19 nicht nur als Gegenwalze mit einer Rollenwechseleinrichtung in einer Vorrichtung zum Aufwickeln von kontinuierlich zulaufenden Folien-, Papier- und dgl. Materialbahnen der vorstehend beschriebenen Art geeignet ist, sie eignet sich vielmehr auch in anderen Anwendungsfällen zur Erfüllung gleicher oder ähnlicher Aufgaben und insbesondere auch für einen Einsatz in anderen Wickelvorrichtungen, die insbesondere nicht mit einem eine Anwickelstation und eine Fertigwickelstation ausbildenden Schwenklager arbeiten, bei denen vielmehr nur eine Wickelstation vorgesehen ist, die zum An- und Fertigwickeln der jeweiligen Materialrolle dient.It goes without saying that the cutting and transport roller 19 according to the invention is not only suitable as a counter-roller with a roll changing device in a device for winding continuously tapering film, paper and similar material webs of the type described above, it is also suitable in others Applications for fulfilling the same or similar tasks and in particular also for use in other winding devices which, in particular, do not work with a swivel bearing forming a winding station and a finishing winding station, in which instead only one winding station is provided which serves to wind up and finish winding the respective material roll .

Claims (20)

Schneid- und Transportwalze für Materialbahnen, insbesondere Gegenwalze in einer Vorrichtung zum Aufwickeln von kontinuierlich zulaufenden Folien-, Papier- und dgl. Materialbahnen (21), dadurch gekennzeichnet, daß im inneren Hohlraum der Walze (19) ein Trennkörper (40) eingesetzt ist, der mit dem Walzenumfang (34) zumindest einen über Durchtrittsbohrungen (43;44) im Walzenmantel (35) mit der Umgebung in Verbindung stehenden, sich im wesentlichen über die gesamte axiale Walzenlänge erstreckenden Druckraum (41;42) begrenzt, und der Walzenumfang (34) außerhalb des Bereichs der Durchtrittsbohrungen (43,44) außerdem mit einem sich seinerseits im wesentlichen über die gesamte axiale Walzenlänge erstreckenden Durchtrittsschlitz (45) für ein im inneren Hohlraum der Walze (19) abgestütztes Trennmesser (46) versehen ist.Cutting and transport roller for material webs, in particular counter-roller in a device for winding continuously running film, paper and similar material webs (21), characterized in that a separating body (40) is inserted in the inner cavity of the roller (19), which delimits at least one pressure chamber (41; 42), which is connected to the surroundings via through bores (43; 44) in the roll shell (35) and extends essentially over the entire axial roll length, and the roll circumference (34 ) outside the area of the passage bores (43, 44) is also provided with a passage slot (45), which in turn extends essentially over the entire axial roll length, for a separating knife (46) supported in the inner cavity of the roll (19). Walze nach Anspruch 1, dadurch gekennzeichnet, daß der Trennkörper (40) als Hohlprofilkörper mit zumindest einer Zuführkammer (47) für ein von einer äußeren Druckmediumquelle zugeführtes Druckmedium und dessen Einspeisung in dem Druckraum (41;42) ausgebildet ist.Roller according to claim 1, characterized in that the separating body (40) is designed as a hollow profile body with at least one feed chamber (47) for a pressure medium supplied from an external pressure medium source and its feed into the pressure chamber (41; 42). Walze nach Anspruch 2, dadurch gekennzeichnet, daß der Hohlprofilkörper ein Mehrkammerprofil aufweist, wobei eine mittlere, die Walzenachse (20) umfassende Kammer die Zuführkammer (47) bildet und im Bereich zwischen dieser und dem Durchtrittsschlitz (45) das Trennmesser (46) abgestützt ist.Roller according to claim 2, characterized in that the hollow profile body has a multi-chamber profile, with a central chamber surrounding the roller axis (20) being the feed chamber (47) and the separating knife (46) is supported in the area between the latter and the passage slot (45). Walze nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sich der Trennkörper (40) diametral beidseits einer das Trennmesser (46) und dessen Durchtrittsschlitz (45) enthaltenden Durchmesserebene (50) durch den inneren Hohlraum der Walze (19) erstreckt und an seinen radialen Enden jeweils mit dem Innenmantel (38) der Walze (19) fest verbunden ist.Roller according to one of claims 1 to 3, characterized in that the separating body (40) extends diametrically on both sides of a diameter plane (50) containing the separating knife (46) and its passage slot (45) through the inner cavity of the roller (19) its radial ends are firmly connected to the inner jacket (38) of the roller (19). Walze nach Anspruch 4, dadurch gekennzeichnet, daß zwei Druckräume (41,42) mit Durchtrittsbohrungen (43,44) im Walzenmantel (35) beidseits des Trennkörpers (40) gebildet sind, die wahlweise mit der äußeren Druckmediumquelle verbindbar sind.Roller according to claim 4, characterized in that two pressure chambers (41, 42) are formed with through-bores (43, 44) in the roller shell (35) on both sides of the separating body (40), which can optionally be connected to the external pressure medium source. Walze nach Anspruch 5, dadurch gekennzeichnet, daß die Bereiche der Durchtrittsbohrungen (43,44) der beiden Druckräume (41,42) ihrerseits einander diametral gegenüberliegend im Walzenmantel (35) angeordnet sind.Roller according to claim 5, characterized in that the areas of the through bores (43, 44) of the two pressure chambers (41, 42) are in turn arranged diametrically opposite one another in the roller jacket (35). Walze nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Trennmesser (46) von einer schmalen hochstehenden Schneidklinge (54) gebildet ist, die mit einem freien Schneidkantenendbereich durch den Durchtrittsschlitz (45), den äußeren Walzenumfang (34) überragend, vorsteht und zur Durchführung eines Trennschnittes von einem Stirnende zum anderen Stirnende der Walze (19) linear entlang dem Durchtrittsschlitz (45) bewegbar ist.Roller according to one of claims 1 to 6, characterized in that the separating knife (46) is formed by a narrow, upstanding cutting blade (54) which projects with a free cutting edge end region through the passage slot (45), projecting beyond the outer circumference of the roller (34) and can be moved linearly along the passage slot (45) from one end to the other end of the roller (19) in order to carry out a separating cut. Walze nach Anspruch 7, dadurch gekennzeichnet, daß die Schneidklinge (54) in Längsrichtung des Durchtrittsschlitzes (45) einander gegenüberliegende Schneidkanten (55) aufweist zur Durchführung eines Trennschnittes bei jeder Bewegung der Schneidklinge (54) von Stirnende zu Stirnende der Walze (19) mit der jeweils vorauslaufenden Schneidkante (55).Roller according to claim 7, characterized in that the cutting blade (54) has mutually opposite cutting edges (55) in the longitudinal direction of the passage slot (45) for performing a separating cut with each movement of the cutting blade (54) from the front end Front end of the roller (19) with the respective leading cutting edge (55). Walze nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Schneidklinge (54) mittels eines Druckmediumantriebs entlang dem Durchtrittsschlitz (45) bewegbar ist.Roller according to claim 7 or 8, characterized in that the cutting blade (54) can be moved along the passage slot (45) by means of a pressure medium drive. Walze nach Anspruch 9, dadurch gekennzeichnet, daß der Druckmediumantrieb von einem doppeltwirkenden druckmediumbetätigten Arbeitszylinder (56) mit einem kolbenstangenlosen, die Schneidklinge (54) abstützenden Kolben gebildet ist, der sich im wesentlichen über die gesamte axiale Länge der Walze (19) erstreckt und Druckmediumanschlüsse (58,59) nahe den beiden Stirnenden der Walze (19) besitzt.Roller according to Claim 9, characterized in that the pressure medium drive is formed by a double-acting pressure medium-operated working cylinder (56) with a rodless piston which supports the cutting blade (54) and extends essentially over the entire axial length of the roller (19) and pressure medium connections (58,59) near the two ends of the roller (19). Walze nach Anspruch 10, dadurch gekennzeichnet, daß die Schneidklinge (54) mit dem Kolben über einen schmalen Zwischensteg (61) verbunden ist, der mit engem Bewegungsspiel in einem dem Durchtrittsschlitz (45) im Walzenmantel (35) gegenüberliegenden Führungsschlitz des Arbeitszylinders (56) geführt ist.Roller according to Claim 10, characterized in that the cutting blade (54) is connected to the piston via a narrow intermediate web (61) which, with a narrow play in a guide slot of the working cylinder (56) opposite the passage slot (45) in the roller jacket (35) is led. Walze nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Trennmesser (46) von einer Schneidklinge (76) mit einer äußeren Schneidkante (77) gebildet ist, deren Länge im wesentlichen gleich der des Durchtrittsschlitzes (45) ist, und daß die Schneidkante (77) normalerweise innerhalb des Durchtrittsschlitzes (45) gehalten und zur Durchführung für eines Trennschnittes kurzzeitig aus dem Durchtrittsschlitz (45) herausbewegbar ist.Roller according to one of Claims 1 to 6, characterized in that the cutting knife (46) is formed by a cutting blade (76) with an outer cutting edge (77), the length of which is substantially equal to that of the passage slot (45), and in that the The cutting edge (77) is normally held within the passage slot (45) and can be moved out of the passage slot (45) for a short time for a separating cut. Walze nach Anspruch 12, dadurch gekennzeichnet, daß die Schneidklinge (76) als Zackenmesserklinge ausgebildet ist.Roller according to claim 12, characterized in that the cutting blade (76) is designed as a serrated knife blade. Walze nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Trennmesser (46) von einem beheizbaren Widerstandsdraht gebildet ist, dessen Länge im wesentlichen gleich der des Durchtrittsschlitzes (45) ist, und daß der Widerstandsdraht normalerweise innerhalb des Durchtrittsschlitzes (45) gehalten und zur Durchführung eines Schmelzschnittes kurzzeitig aus dem Durchtrittsschlitz (45) herausbewegbar ist.Roller according to one of claims 1 to 6, characterized in that the separating knife (46) is heated by a Resistance wire is formed, the length of which is substantially equal to that of the passage slot (45), and that the resistance wire is normally held within the passage slot (45) and can be briefly moved out of the passage slot (45) in order to carry out a fusion cut. Walze nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, daß das Trennmesser (46) in radialer Richtung des Walzendurchmessers aus dem Durchtrittsschlitz (45) heraus- und wieder zurückbewegbar ist.Roll according to one of Claims 12 to 14, characterized in that the separating knife (46) can be moved out of the passage slot (45) and back again in the radial direction of the roll diameter. Walze nach Anspruch 15, dadurch gekennzeichnet, daß das Trennmesser (46) durch doppeltwirkende druckmediumbetriebene Hubzylinder (78) in an die jeweilige Walzenstirnwand (36,37) angrenzenden Bereichen betätigbar ist.Roller according to claim 15, characterized in that the separating knife (46) can be actuated by double-acting pressure medium-operated lifting cylinders (78) in areas adjacent to the respective roller end wall (36, 37). Walze nach Anspruch 1 bis 16, dadurch gekennzeichnet, daß sie für ihren Drehantrieb zwei stirnseitige Lagerzapfen (66,71) umfaßt, von denen ein Lagerzapfen (66) mit integrierten Druckmediumkanälen (67,68) für die Ansteuerung des oder der das Trennmesser (46) betätigenden Arbeitszylinder(s) (56;78) versehen ist.Roll according to Claims 1 to 16, characterized in that it comprises two end journals (66, 71) for its rotary drive, one of which has a bearing journal (66) with integrated pressure medium channels (67, 68) for controlling the separating knife (s) (46 ) actuating working cylinder (s) (56; 78) is provided. Walze nach Anspruch 12 oder 13, dadurch gekennzeichnet, daß das Trennmesser (46) über ein im inneren Hohlraum der Walze (19) angebrachtes Parallelführungsgestänge (82) mit einer kombinierten Radial- und Axialbewegung aus dem Durchtrittsschlitz (45) heraus- und wieder zurückbewegbar ist.Roller according to Claim 12 or 13, characterized in that the separating knife (46) can be moved out of the passage slot (45) and back again via a parallel guide linkage (82) which is attached to the inner cavity of the roller (19) and has a combined radial and axial movement . Walze nach Anspruch 18, dadurch gekennzeichnet, daß das Parallelführungsgestänge (82) durch einen äußeren druckmediumbetriebenen Schubstangenantrieb (83) betätigbar ist.Roll according to Claim 18, characterized in that the parallel guide linkage (82) can be actuated by an external push rod drive (83) operated by pressure medium. Walze nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet, daß von den beiden stirnseitigen Lagerzapfen (66,71) für den Drehantrieb der Walze (19) ein Lagerzapfen (71) mit einem integrierten Druckmediumkanal (75) für die Versorgung des Druckraums (41;42) mit einem Druckmedium versehen ist und daß der Druckmediumkanal (75) wahlweise mit einer äußeren Unterdruck- oder Überdruckquelle als Druckquelle verbindbar ist.Roller according to one of claims 1 to 19, characterized in that of the two front bearing journals (66,71) for the rotary drive of the roller (19) a bearing journal (71) with an integrated pressure medium channel (75) for supplying the pressure chamber (41; 42) with a pressure medium and that the pressure medium channel (75) optionally with a external negative or positive pressure source can be connected as a pressure source.
EP95111590A 1994-08-17 1995-07-24 Cutting and transport cylinder for webs Expired - Lifetime EP0698571B1 (en)

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DE9413238U 1994-08-17
DE9413238U DE9413238U1 (en) 1994-08-17 1994-08-17 Device for winding material webs with a cutting and transport roller

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EP0698571A2 true EP0698571A2 (en) 1996-02-28
EP0698571A3 EP0698571A3 (en) 1998-01-28
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EP (1) EP0698571B1 (en)
JP (1) JPH0867378A (en)
AT (1) ATE218492T1 (en)
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DE (2) DE9413238U1 (en)
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EP1190821A2 (en) * 2000-09-22 2002-03-27 Windmöller & Hölscher KG Oscillating single bladed knives and method of cutting with such knives
DE10047545A1 (en) * 2000-09-22 2002-05-02 Windmoeller & Hoelscher Cutting and transport roller with integrated cutting device with rotating cutting surfaces
US6766722B2 (en) 2000-09-22 2004-07-27 Windmoeller & Hoelscher Cutting and transport roller with integrated cutter with rotating cutting surfaces
EP1190821A3 (en) * 2000-09-22 2004-11-03 Windmöller & Hölscher KG Oscillating single bladed knives and method of cutting with such knives
DE10051372B4 (en) * 2000-10-17 2005-08-25 Windmöller & Hölscher Kg Knife slot cover on a cutting and transport roller
US7320269B2 (en) 2001-12-19 2008-01-22 Windmoeller & Hoelscher Kg Blade slit covering on a cutting and feed roller
EP1458529B1 (en) * 2001-12-19 2006-09-20 Windmöller & Hölscher KG Blade slit covering on a cutting and feed roller
DE10321778B4 (en) * 2003-05-14 2006-03-30 Windmöller & Hölscher Kg Cutting and transport roller in a winding device for winding webs of material
DE10321778A1 (en) * 2003-05-14 2005-01-05 Windmöller & Hölscher Kg Cutting and transport roller in a winding device for winding webs of material
EP3406770A1 (en) * 2017-05-24 2018-11-28 Trützschler GmbH & Co. KG Cutting device for a nonwoven fabric coiler
CN108928661A (en) * 2017-05-24 2018-12-04 特吕茨施勒有限及两合公司 The cutter device of web up- coiler and its method
CN108928661B (en) * 2017-05-24 2020-10-02 特吕茨施勒有限及两合公司 Cutting device for a web winding machine and method thereof
EP3409818B1 (en) * 2017-05-24 2021-07-07 Trützschler GmbH & Co. KG Cutting device for a nonwoven fabric winder and method for same

Also Published As

Publication number Publication date
DE59510223D1 (en) 2002-07-11
ES2177595T3 (en) 2002-12-16
ATE218492T1 (en) 2002-06-15
EP0698571A3 (en) 1998-01-28
CA2156201A1 (en) 1996-02-18
US5848761A (en) 1998-12-15
JPH0867378A (en) 1996-03-12
CA2156201C (en) 2002-10-22
DE9413238U1 (en) 1994-10-13
EP0698571B1 (en) 2002-06-05
DK0698571T3 (en) 2002-09-16

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