EP0708047B1 - Procédé et dispositif pour dérouler une bande - Google Patents

Procédé et dispositif pour dérouler une bande Download PDF

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Publication number
EP0708047B1
EP0708047B1 EP95116030A EP95116030A EP0708047B1 EP 0708047 B1 EP0708047 B1 EP 0708047B1 EP 95116030 A EP95116030 A EP 95116030A EP 95116030 A EP95116030 A EP 95116030A EP 0708047 B1 EP0708047 B1 EP 0708047B1
Authority
EP
European Patent Office
Prior art keywords
torque transmission
transmission element
winding
reel
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95116030A
Other languages
German (de)
English (en)
Other versions
EP0708047A1 (fr
Inventor
Claus August Bolza-Schünemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0708047A1 publication Critical patent/EP0708047A1/fr
Application granted granted Critical
Publication of EP0708047B1 publication Critical patent/EP0708047B1/fr
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
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • 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
    • B65H2301/4146—Winding involving particular drive arrangement
    • B65H2301/41464—Winding involving particular drive arrangement lateral drive arrangement, e.g. operating on the flange of the web roll

Definitions

  • the invention relates to and a device for Unwinding a web, especially one Paper web, for example in a winding roll changer a rotary printing press according to the preamble of Claim 1.
  • DE-A 42 34 344 discloses a device for Unwinding of a material web in a winding roll changer, the web on a winding core in the form of a Winding roll is wound and in ends of Expandable, rotatable cones for winding core Engage the take-up of the winding roll, the torques transfer the winding core and thus to the winding roll, and wherein at least one torque transmission element at times synchronous with the clamping cones is provided with an end face of the Coil on and coactively interacting is arranged adjustable, the Torque transmission element integral with the Clamping cone is arranged axially movable.
  • This device is in one Production machine for changing rolls in web form Material used. This becomes a core of the role of spindles recorded and act on the end face of the roll a disc arranged suction cups. These suction cups or the disc is torsionally rigid with a spindle connected.
  • a disadvantage of this device is that the edges of the Material web when the diameter falls below the Roll compared to a diameter of the disc can be damaged.
  • US-A 38 51 834 describes a device for Unwinding a web, the web on a Winding core is wound in the form of a winding roll and wherein a rotatable chuck for receiving the winding roll protrudes through the winding core and Torques on the winding core and thus on the Transfers winding roll, and being at least one Torque transmission element temporarily synchronized with the clamping device is provided all around, with one end face of the winding roll frictionally is arranged interactively on and off, wherein the torque transmission element regardless of and axially movable coaxially with the clamping device is arranged.
  • This device for light film rolls is not suitable for a relatively heavy winding roll in one Winding reel changer of a rotary printing machine.
  • DE 35 21 582 C2 is a device for Clamping winding cores known in the rotatable Clamping cones with tubular segment-shaped clamping elements are provided. These tensioning elements expand and thus clamp the winding core on the tensioning cones.
  • the disadvantage of this device is that the at today usual winding rolls with large diameters and large Large occurring moments of inertia Speed changes of the winding roll do not exceed the Clamping cones can be transferred.
  • the invention has for its object a Device for unwinding a web of goods with temporary acting on an end face of a winding roll To create torque transmission elements at damage to the web is prevented, too if a diameter of the winding roll is smaller than one Diameter of the torque transmission elements is.
  • the device according to the invention is in the drawing shown and is described in more detail below.
  • a device for unwinding a material web 1, especially a paper web is for example in a winding reel changer of a rotary printing machine integrated.
  • a shaft 4 is mounted in side frames 2, 3 of the winding roll changer of a rotary printing press, on which a right and left bearing arm 6, 7 are fastened. These bearing arms 6, 7 are axially displaceable on the shaft 4, but arranged in a rotationally fixed manner by a distance a, z. B. 2.5 m, the bearing arms of a width b, z. B. 2 m, the web 1, ie to adapt a winding roll 8 and to determine a position of the winding roll 8 with respect to a central axis 9 of the rotary printing press.
  • the shaft 4 can be pivoted by means of drives (not shown) in order to bring the winding roll 8 into different positions required for changing the winding rolls.
  • the left bearing arm 6 has a first bearing, for example in a bore 12 lying concentrically to an axis of rotation 11 of the winding roller 8.
  • B. needle bearing 13 which receives a tubular hollow shaft 14 rotatable and axially displaceable.
  • Actuating devices 16 act on this hollow shaft 14, which can move the hollow shaft 14 axially, even with simultaneous rotation of the hollow shaft 14.
  • the end 17 of the hollow shaft 14 facing away from the winding roll 8 is provided with a circumferential annular collar 18 which is perpendicular to the axis of rotation 11 and which comprises a non-rotating forked ring 19 or one or more fork segments, as seen in section.
  • Axial bearings can be arranged between the collar 18 and the fork-shaped ring 19, for example on both sides 21, 22 of the collar 18.
  • a fork segment are formed such that cam rollers act on both sides of the collar, the bolts of which are connected in parallel via a coupling.
  • One or more positioning drives are arranged parallel and concentric to the axis of rotation 11.
  • single-acting, spring-loaded pneumatic cylinders 23 are used as positioning drives.
  • Other known positioning drives such as e.g. As hydraulic cylinders, spindle drives, linear drives, etc.
  • This disk 26 is provided on its two plane sides 27, 28 with friction linings 29, so that the friction linings 29 are connected to the hollow shaft 14 in a torsionally rigid manner.
  • These friction linings 29 can be in the form of annular disks with an outer diameter d1, e.g. B. 700 mm, which are simply integrally connected to the disk 26 of the hollow shaft 14.
  • d1 outer diameter
  • d1 outer diameter
  • the disc 26 of the hollow shaft 14 can also be used only as narrow disk can be executed, for example is connected to the hollow shaft 14 by means of spokes, or z. B. from individual provided with friction linings 29, plates attached to support arms.
  • This Support arms can be designed such that they can be pivoted the plates on and off the end face of the winding roll can be switched off.
  • a second storage for. B. needle bearing 31, which receives a shaft 32 concentrically rotatable about the axis of rotation 11 and axially displaceable.
  • the shaft 32 is provided with an adjusting device 33, which can move the shaft 32 axially, even when the hollow shaft 14 rotates.
  • This actuator 33 can adequately the actuator 16 of the hollow shaft 14, z. B. with pneumatic cylinders 34 to be executed.
  • An end 36 of the shaft 32 facing away from the winding roll 8 is connected by means of a coupling 37 which transmits torques and at least compensates for axial displacement of the shaft 32, e.g. B. spline connection with a braking device 38, for. B. disc brake, with a drive 39, z. B. three-phase motor, and with a speed sensor 41, z. B. incremental encoder coupled.
  • An end 42 of the shaft 32 facing the winding roll 8 is with a known cone 43 for Recording of a tubular winding core 44 of the Provide winding roll 8.
  • This clamping cone 43 can for example pneumatically operated, expanding Have jaws.
  • the hollow shaft 14 and the shaft 32 are by means of a switchable, torsionally rigid coupling 46 connected. in the present example is this clutch 46 as switchable spline connection.
  • a yourself axially extending area of the shaft 32 is as Splined shaft 47 and profiled in the hollow shaft 14 Wedge hub 48 rigidly attached.
  • the respective wedges 49 from Spline shaft 47 and spline hub 48 are at both ends 51, 52 tapering, e.g. B. in the axial direction arrow-shaped, formed. But z. Belly known, radially acting friction clutches used become.
  • the right bearing arm 7 is a mirror image of the described left bearing arm 6. However, the drive 39 and the speed sensor 41 can be omitted here.
  • a sensor 53 for. B. an optoelectric reflection button, for detecting a certain limit diameter dG, z. B. 800 mm, the winding roll 8 attached.
  • the mode of operation of the device according to the invention is described with the help of the left bearing arm 6 with its elements;
  • the shaft 32 with its clamping cone 43 and the hollow shaft 14 with its disk 26 provided with friction linings 29 are in their position remote from the winding rollers, ie the pneumatic cylinders 34 are extended.
  • the winding roll 8 is placed between the bearing arms 6, 7 in such a way that the winding core 44 is approximately aligned with the tensioning cone 43.
  • the pneumatic cylinder 34 of the adjusting device 33 By pulling the pneumatic cylinder 34 of the adjusting device 33, the tensioning cone 43 is pushed into the winding core 44.
  • the jaws of the clamping cone 43 then expand by means not shown.
  • the winding core 44 or the winding roll 8 is hereby connected to the tensioning cone 43 in a frictional or positive manner.
  • the speed of the shaft 32 is then queried by means of the speed sensor 41 and the limit diameter dG of the winding roll 8 by means of the sensor 53. If the shaft 32, ie the winding roller 8, and an actually existing diameter d2 of the winding roller 8 corresponds at least to the limit diameter dG, the release for the axial displacement of the hollow shaft 14 in the direction of the winding roller 8 takes place. By venting the pneumatic cylinders 23, the hollow shaft 14 becomes in the direction Spool 8 moved, shortly after the friction linings 29 are released from the bearing arms 6, 7, the spline shaft 47 meets the spline hub 48.
  • Trowel 49 and grooves 54 of the spline shaft 47 are not aligned with the spline hub 48 by the tapered ends 51, 52 of the trowel 49 produces a slight rotation of the hollow shaft 14 so that the spline shaft 47 and spline hub 48 slide into one another as the axial movement of the hollow shaft 14 progresses.
  • Hollow shaft 14 and shaft 32 are thus connected to one another in a torsionally rigid manner and are thus rotating synchronously.
  • the hollow shaft 14 is axially displaced by the pneumatic cylinders 23 until the friction linings 29 are pressed against an end face 56 of the winding roll 8. There is now a frictional connection between the friction linings 29 and the winding roller 8, which can transmit torques. Is z. B.
  • the winding roll 8 in work function the web 1 is unwound at a uniform peripheral speed at a constant production speed.
  • the actual diameter d2 of the winding roll 8 decreases and the speed increases. This is carried out via the speed-controlled drive 39. If a quick stop of the winding roll 8 is now necessary, a braking torque is transmitted to the shaft 32 via the braking device 38. As long as the friction linings 29 cooperate with the end face 56 of the winding roller 8, ie as long as the diameter d2 of the winding roller 8 is greater than the limit diameter dG, the braking torque is branched at the clutch 46.
  • the clutch 46 transmits part of the braking torque to the hollow shaft 14, which in turn is transmitted to the winding roller 8 by means of the friction linings 29. Overloading of the winding core 44 is thus excluded. If a quick stop is not required, after reaching the limit diameter dG of the winding roll 8, the pneumatic cylinders 23 are vented by a signal from the sensor 53, and the hollow shaft 14 is displaced axially away from the winding roll 8 by spring force.
  • the coupling 46 decouples the shaft 32 from the hollow shaft 14 before the friction linings 29 reach the bearing arm 6, and the hollow shaft 14 is freely rotatable.
  • the friction linings 29 are pressed against the bearing arm 6 by further displacement of the hollow shaft 14. As a result, the rotational movement of the hollow shaft 14 is braked and stopped. If there is a quick stop, the significantly reduced mass of the winding roll 8 is stopped by a braking torque, which is only transmitted by the tensioning cones 43.

Landscapes

  • Winding Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)
  • Rotary Presses (AREA)
  • Unwinding Webs (AREA)

Claims (9)

  1. Dispositif pour dérouler une bande de matière (1), en particulier une bande de papier, dans un changeur de bobine d'une machine à imprimer rotative, la bande de matière (1) étant enroulée en forme de bobine (8) sur un mandrin de bobinage (44), des cônes de serrage rotatifs expansibles (43) étant engagés dans des extrémités du mandrin de bobinage (44) pour supporter la bobine (8) et transmettant des couples de rotation au mandrin de bobinage (44) et donc à la bobine (8), et au moins un élément de transmission de couple (26) étant prévu pour tourner au moins temporairement de manière synchrone avec les cônes de serrage (43), ledit élément étant monté avec la possibilité d'être accolé et décollé en coopérant par friction avec une face frontale (56) de la bobine (8), le dispositif contenant le cône de serrage et l'élément de transmission de couple, caractérisé en ce que l'élément de transmission de couple (26) est disposé avec une possibilité de déplacement axial indépendamment du cône de serrage (43) et concentriquement à celui-ci.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'élément de transmission de couple (26) est disposé avec la possibilité d'être solidarisé en rotation au cône de serrage (43) et à en être désolidarisé à l'aide d'un moyen d'accouplement embrayable (46).
  3. Dispositif selon la revendication 2, caractérisé en ce que le moyen d'accouplement embrayable (46) est constitué d'un arbre cannelé (47) et d'un moyeu cannelé (48) pouvant coulisser axialement l'un par rapport à l'autre.
  4. Dispositif selon la revendication 1, caractérisé en ce que l'élément de transmission de couple (26) est conçu sous la forme d'un disque annulaire (26) concentrique à l'axe de rotation (11).
  5. Dispositif selon la revendication 1, caractérisé en ce que les éléments de transmission de couple prévus (26) sont des plaques segmentées fixées à des bras porteurs.
  6. Dispositif selon les revendications 1 et 5, caractérisé en ce que les éléments de transmission de couple (26) sont montés pivotants indépendamment du cône de serrage (43) à l'aide des bras porteurs.
  7. Dispositif selon la revendication 1, caractérisé en ce que la face plane (27) des éléments de transmission de couple (26) est revêtue de garnitures de friction (29).
  8. Dispositif selon les revendications 2 à 4, caractérisé en ce qu'une seconde face plane (28) du disque (26), située à l'opposé de la bobine (8) coopère indirectement ou directement avec un bras d'appui (6) du changeur de bobine lorsque le moyen d'accouplement (46) est libéré et que le disque (26) se trouve dans une position éloignée de la bobine.
  9. Dispositif selon la revendication 8, caractérisé en ce que la seconde face plane (28) du disque (26) est revêtue de garnitures de friction (29).
EP95116030A 1994-10-18 1995-10-11 Procédé et dispositif pour dérouler une bande Expired - Lifetime EP0708047B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4437147A DE4437147C1 (de) 1994-10-18 1994-10-18 Vorrichtung zum Abwickeln einer Warenbahn
DE4437147 1994-10-18

Publications (2)

Publication Number Publication Date
EP0708047A1 EP0708047A1 (fr) 1996-04-24
EP0708047B1 true EP0708047B1 (fr) 1999-01-20

Family

ID=6531022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95116030A Expired - Lifetime EP0708047B1 (fr) 1994-10-18 1995-10-11 Procédé et dispositif pour dérouler une bande

Country Status (4)

Country Link
US (1) US5860617A (fr)
EP (1) EP0708047B1 (fr)
JP (1) JPH08231085A (fr)
DE (2) DE4437147C1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6030496A (en) * 1997-04-16 2000-02-29 Kimberly-Clark Worldwide, Inc. Making a web
DE10024120B4 (de) * 2000-05-18 2005-08-25 Maschinenfabrik Wifag Rollenwechsler mit Motorbremse
US20070102564A1 (en) * 2003-12-01 2007-05-10 Anton Loffler Roll changer and method for carrying out a flying roll change
US8070660B2 (en) * 2005-09-06 2011-12-06 Seidel Gregg A Device for managing a retractable sheet
DE102011080732B4 (de) * 2011-08-10 2017-09-07 Koenig & Bauer Ag Verfahren zum Betreiben einer Rollenabspulvorrichtung
US11851298B2 (en) * 2021-05-28 2023-12-26 Renova S.R.L. Machine for producing cardboard

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1788648A (en) * 1927-08-25 1931-01-13 Wood Newspaper Mach Corp Paper-roll-controlling device
US1883222A (en) * 1931-01-12 1932-10-18 Wood Newspaper Mach Corp Paper roll braking device
US3019995A (en) * 1961-04-24 1962-02-06 Raymond H Eckert Cable applicator and rewind unit
US3851834A (en) * 1973-03-08 1974-12-03 Eastman Kodak Co Roll drive mechanism
CH666063A5 (de) * 1984-08-31 1988-06-30 Benninger Ag Maschf Wickelmaschine zum aufwickeln und/oder abwickeln bahnfoermig gefuehrten gutes.
DE3521582A1 (de) * 1985-06-15 1986-12-18 Jagenberg AG, 4000 Düsseldorf Vorrichtung zum aufspannen von rohrfoermigen wickelkernen, insbesondere von papierbahnen oder aehnliche werkstoffbahnen tragenden wickelkernen
IT1253272B (it) * 1991-10-10 1995-07-14 Gd Spa Dispositivo per la sostituzione di bobine di materiale in nastro in una macchina operatrice

Also Published As

Publication number Publication date
DE4437147C1 (de) 1996-05-23
EP0708047A1 (fr) 1996-04-24
DE59504893D1 (de) 1999-03-04
US5860617A (en) 1999-01-19
JPH08231085A (ja) 1996-09-10

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