EP0363295B1 - Vorrichtung zum Quertrennen und Verbinden einer laufenden Bahn mit einer neuen Hülse bei selbsttätigen Wickelmaschinen - Google Patents

Vorrichtung zum Quertrennen und Verbinden einer laufenden Bahn mit einer neuen Hülse bei selbsttätigen Wickelmaschinen Download PDF

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Publication number
EP0363295B1
EP0363295B1 EP19890440105 EP89440105A EP0363295B1 EP 0363295 B1 EP0363295 B1 EP 0363295B1 EP 19890440105 EP19890440105 EP 19890440105 EP 89440105 A EP89440105 A EP 89440105A EP 0363295 B1 EP0363295 B1 EP 0363295B1
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EP
European Patent Office
Prior art keywords
arms
support
knife
cutting
pivoting
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.)
Revoked
Application number
EP19890440105
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English (en)
French (fr)
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EP0363295A1 (de
Inventor
André Steffen
Claude Kleitz
André Wolff
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.)
Monomatic SA
Original Assignee
Monomatic SA
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Application filed by Monomatic SA filed Critical Monomatic SA
Publication of EP0363295A1 publication Critical patent/EP0363295A1/de
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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
    • 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
    • B65H2301/41894—Cutting knife moving on circular or acuate path, e.g. pivoting around winding roller

Definitions

  • the present invention relates to the field of machines for winding materials into strips for making coils, in particular continuously, and relates to a device for cutting and connecting a strip, in operation, on a new mandrel. a continuous reel.
  • a winding machine has been proposed provided with a cutting device pivoting around the mandrel for receiving the end of the strip to be wound and simultaneously performing the cutting of said end, which folds over said mandrel and is tightened by the band winding on the latter.
  • a winding machine implementing a cutting device into two cooperating elements, one of the elements of which is a knife and the other a cylinder provided with a longitudinal notch cooperating with said knife and applying the end of strip on the new mandrel.
  • a device for changing rollers and transverse cutting of fast-running strips in multiple winding machines has means for cutting on the fly and means for applying the end of the strip to the new mandrel and a transverse knife mounted on a pair of first arms pivoting under the action of at least one jack, said first arms being mounted on a pivotable support between a rest position and a knife operating position, the pivotable support being constituted by a pair of second arms pivotally mounted on the chassis of the winding machine by means of an axis and driven around this axis by means of a jack acting on a lever secured to said axis, the second arms being connected to each other by means of stiffening crosspieces, a pivoting support axis of the first arms and a cylinder of deflection of the strip material, the axis of the latter extending in front of the support axis of the first arms in the direction of pivoting of the second arms from said rest position to said service position.
  • the transverse knife is a rotary knife mounted on the ends of the first arms and is provided with an application means in the form of a brush extending with a slight inclination behind said knife.
  • the latter performs the cut following the drive of its support cylinder by contact with the moving strip, without prior drive of said support cylinder. There is therefore no prior tangential acceleration, so that the cutting of the strip is necessarily carried out only at a lower speed and that a loop formation is inevitable.
  • US-A-3,704,835 implements a retractable rotary knife triggered after acceleration of its support cylinder by contact with the finishing strip.
  • the device according to this document does not provide any means of applying the strip to the new mandrel, so that an effective application, without loop formation, of the start of the strip is not ensured, which is particularly detrimental in the case of fragile material winding.
  • FR-A-2 210 996 describes a connection device constituted by two separate arms closing in the manner of scissors, one of these arms being solely intended to surround the new mandrel for the production of the new coil and the other carrying the knife.
  • the two arms are actuated individually and the cut is carried out practically when stationary, a crease formation which can only be avoided with relatively slow operation.
  • the present invention aims to overcome these drawbacks.
  • a device for cutting and connecting a strip, in operation, on a new mandrel of a continuous winder comprising a means of cutting on the fly and a means of applying the end of the strip on the new mandrel, the cutting means consisting of a transverse knife mounted on a pair of first arms pivoting under the action of at least one jack for said cutting on the fly, said first arms being mounted on a pivotable support between a rest position and a knife operating position, the pivotable support consisting of a pair of second arms pivotally mounted on the chassis of the winding machine by means of an axis and driven around of this axis by means of a jack acting on a lever integral with said axis, the second arms being connected to each other by means of stiffening crosspieces, of a pivoting support axis of the first arms and of a deflection cylinder of the strip material, the axis of the latter extending in front of the support axis of the first arms in the pivoting
  • Figure 1 of the accompanying drawings shows a machine for continuously winding a strip material 1 on mandrels 2. After obtaining a reel 3 of desired diameter, the running strip is cut and its end is applied to a new mandrel 2 , for the production of a new coil 3, by means of a device 4 for connecting and cutting a strip 1 during the operation of the winding machine, according to the invention.
  • said device 4 for connecting and cutting a strip 1, in operation, on a new mandrel 2 of a continuous winder is essentially constituted by a transverse knife 5 which is mounted on a pair of arms 6 pivoting under the action of at least one fast-acting cylinder 7, preferably a pneumatic cylinder.
  • This cylinder 7 is shown in the drawing by a single axis line.
  • the arms 6 are mounted on a pivotable support 8 retractable in the rest position.
  • connection device 4 comprises means 9 for applying the end of the strip to the new mandrel 2.
  • the support 8 retractable in the rest position consists of a pair of arms 10 pivotally mounted on the chassis of the winding machine by means of an axis 11 and pivotable about this axis 11 by means of a jack 12 acting on a lever 13 integral with said axis 11, the arms 10 being interconnected by means of stiffening crosspieces 14, of an axis 15 of the pivoting support of the arms 6 for receiving the transverse knife 5 and of a cylinder 16 for deflecting the strip material 1, the axis of the latter extending in front of the axis 15 of the support for the arms 6 in the direction of pivoting of the arms 10 from the rest position of the device 8 to its service position.
  • connection device 4 is provided with a means 4 'for locking in the rest position, in the form of retractable lugs under the action of jacks or electromagnets and cooperating with the edge of the levers 13 turned in the direction of the pivoting of the latter, the actuation in the retracted position of the cleats 4 'being carried out simultaneously with the actuation command in pivoting in the service position of the connection device 8.
  • the transverse knife 5 is mounted on the ends of the arms 6, with an inclination relative to the latter and is surmounted by the means 9 for applying the strip end to the new mandrel 2, which is formed in the form of a brush extending substantially at right angles to the knife 5, the arms 6 being provided, moreover, with stops 17 for application against a corresponding stiffening crosspiece 14 in the knife's rest position.
  • the pivoting angle of the retractable support 8 between its rest position and its operating position is determined, in known manner, by the stroke of the piston rod of the jack 12 acting on the lever 13 secured to the pivot axis 11 arms 10.
  • the device according to the invention operates as follows: At the end of winding of a reel 3 on a mandrel 2, said mandrel 2 with the reel 3 pivots towards an unloading position of the reel 3 and the pivotable support 8 is moved into its working position by action of the jack 12 on the lever 13, after retracting the tabs 4 ′ during the pivoting command, which has the effect of applying the cylinder 16 for deflecting the material in strip 1 on said strip 1 and thus bringing the latter closer to the new mandrel 2 which is arranged at 180 ° to the mandrel of the full reel.
  • the jack 7 is then actuated and causes a rapid pivoting of the arms 6 around their support axis 15 having the effect of very quickly moving the knife 5 through the running plane of the strip 1 and cutting the latter on the fly, so that the cut end of the strip is projected in the direction of the new mandrel 2 and the brush 9, which sweeps the space behind the knife 5, presses the said end of strip 1 on said mandrel 2 by sliding on the latter, so that said end is fully applied to said mandrel 2 without forming a flap.
  • the jack 7 is actuated in the opposite direction in order to pivot the arms 6 into their starting position with application of their stop 17 against the stiffening cross member 14, the arrival in this position causing the actuation of the jack 12 bringing the retractable support 8 in its starting position ready for a new strip cutting operation after partial rotation of the spool during winding and presentation, in the connection position, of a new empty mandrel 2.
  • FIGS 3 and 4 of the accompanying drawings show an alternative embodiment of the invention, in which the retractable support 8 ′ in the rest position is provided, at the opposite end of its pivot axis 18, with a deflection cylinder 19 and with a complementary device 20 for applying the start of the cut strip to the new mandrel 2 cooperating, during the cutting movement on the fly of the transverse knife 5, with the arms 6 of the latter, the pivoting actuation of the arms 10 ′ of the support 8 ′ being carried out on an extension of the latter on the side opposite to the deflection cylinder 19 by means of at least one cylinder 12 ′.
  • the complementary device 20 for applying the start of the strip is in the form of a pivoting element constituted by two lateral cheeks 21 connected to each other by a pivot axis 22 and connecting to the arm 10 ′ of the support 8 ′, by a cylinder 23 for applying the strip end cut to the new mandrel 2 and by rollers 24 bearing on a corresponding face of the arms 6 for supporting the transverse knife 5, the cheeks 21 being each loaded individually, on the opposite side to the rollers 24 by a corresponding jack 25 or, together, by means of a connecting pin, by a single jack.
  • the arms 6 for supporting the knife 5 are held, in the retracted position of the latter, before an operation cutting, by means of retractable tabs 26 each controlled by a pneumatic or electro-mechanical jack and guided in the arms 10 ′ of the support 8. In the rest position, the arms 6 of the knife support 5 simultaneously lock in position rest of the complementary device 20 for applying the cut end of the strip to the new mandrel 2.
  • FIGS. 3 and 4 makes it possible to further improve the application of the cut end of the strip to the new mandrel, without formation of the flap and to guarantee a secure winding, under tension, of the start of the strip. Indeed, due to the application under pressure of the band 1 to be wound on the mandrel 2 by the cylinder 23, the existing traction on the band to be wound 1 is annihilated, so that an exhaust from said end under said traction is made impossible.
  • the other constituent parts of the support 8 ′ according to FIGS. 3 and 4 are identical to those of the support 8 according to FIGS. 1 and 2.
  • the operation of the support 8 ′ is also comparable to that of the support 8 with the exception of the direction of pivoting of the arms 10 ′ and of the complementary device 20.
  • the invention it is possible to produce a device for connecting and cutting a strip, in operation, on a new mandrel of a continuous winder, making it possible to ensure correct application of the end of the new strip on the new mandrel, without forming a flap which would be harmful, in particular, in the case of winding of material in fragile strip.

Landscapes

  • Replacement Of Web Rolls (AREA)

Claims (3)

  1. Vorrichtung zum Quertrennen und zum Verbinden eines Bandes (1) mit einem neuen Wickelkörper (2) während des Betriebes einer kontinuierlichen Wickelmaschine, die ein Schwungschneidemittel (5) und ein Aufbringungsmittel (9) für das äußerste Ende des Bandes (1) auf dem neuen Wickelkörper (2) aufweist, wobei das Schneidemittel von einem Quermesser (5) gebildet wird, das auf einem Paar erster Arme (6) befestigt ist, die unter der Einwirkung mindestens einer Hebevorrichtung (7) im Hinblick auf besagten Schwungschnitt verschwenkbar sind, wobei besagte erste Arme (6) auf einer Halterung (8, 8') montiert sind, die zwischen einer Ruheposition und einer Arbeitsposition des Messers (5) verschwenkbar ist, wobei die verschwenkbare Halterung (8, 8') von einem Paar zweiter Arme (10) gebildet wird, die mittels einer Achse (11, 18) verschwenkbar auf dem Rahmen der Wickelmaschine montiert sind, und die mittels einer Hebevorrichtung (12, 12') um diese Achse (11, 18) herum angetrieben werden, wobei die Hebevorrichtung (12, 12') auf einen drehfest mit der besagten Achse (11, 18) verbundenen Hebel (13) einwirkt, wobei die zweiten Arme (10) mittels Versteifungsstegen (14), mittels einer Tragachse (15), die die ersten Arme (6) schwenkbar lagert, und mittels eines Ablenkungszylinders (16) für das Bandmaterial (1) miteinander verbunden sind, wobei sich die Achse dieses letzteren in der Drehrichtung der zweiten Arme (10) von der besagten Ruheposition zur besagten Arbeitsposition vor der Tragachse (15) der ersten Arme (6) erstreckt, wobei das Quermesser (5) auf den äußersten Enden der ersten Arme (6) montiert ist und durch das Aufbringungsmittel (9) überragt wird, das sich ungefähr rechtwinklig zum Messer (5) erstreckt, wobei die Hebevorrichtung (7) eine Schnellhebevorrichtung ist, die auf den zweiten Armen (20) montiert ist, wobei ein Sperrmittel (4') der verschwenkbaren Halterung (8, 8') in der Form von unter der Einwirkung von Hebevorrichtungen oder von Elektromagneten einziehbaren Anschlägen vorgesehen ist, wobei die Betätigung in die eingezogene Position der Anschläge (4') gleichzeitig mit der Steuerungsbetätigung zum Schwenken der schwenkbaren Halterung in die Arbeitsposition durchgeführt wird, und wobei die ersten Arme (6) unter anderem mit Angriffsanschlägen (17) gegen einen ihnen in einer Ruheposition des Messers entsprechenden Versteifungssteg (14) versehen sind.
  2. Vorrichtung gemäß Anspruch 1,
    dadurch gekennzeichnet, daß die schwenkbare Halterung (8') an seinem äußersten, seiner Schwenkachse (18) gegenüberliegenden Ende mit einem Umlenkzylinder (19) und mit einer zusätzlichen Aufbringungsvorrichtung (20) für den Anfang des abgetrennten Bandes auf den neuen Wickelkörper (2) versehen ist, die während der Schwungschneidebewegung des Quermessers (5) mit den ersten Armen (6) dieses letzteren zusammenwirkt, und dadurch, daß die zusätzliche Aufbringungsvorrichtung (20) für den Anfang des Bandes in der Form eines sich drehenden Elements erscheint, das durch zwei Seitenbacken (21) gebildet wird, die durch eine Dreh- und Verbindungsachse (22) zu den zweiten Armen (10') der schwenkbaren Halterung (8'), durch einen Aufbringungszylinder (23) für das äußerste Ende des abgetrennten Bandes auf den neuen Wickelkörper (2) und durch Andrückrollen (24) miteinander verbunden sind, die auf eine entsprechende Fläche der ersten Tragarme (6) des Quermessers (5) drücken, wobei die Backen (21) von der den Andrückrollen (24) gegenüberliegenden Seite jede individuell durch eine entsprechende Hebevorrichtung (25) oder alle zusammen über eine Verbindungsachse durch eine einzige Hebevorrichtung belastet werden.
  3. Vorrichtung gemäß Anspruch 2,
    dadurch gekennzeichnet, daß die ersten Tragarme (6) des Messers (5) in der zurückgezogenen Position des letzteren vor einer Trennoperation mittels einziehbarer Anschläge (26), von denen jeder durch eine pneumatische oder elektro-mechanische Hebevorrichtung betätigt wird und die in dem zweiten Arm der schwenkbaren Halterung (8') geführt werden, gehalten werden.
EP19890440105 1988-10-05 1989-10-03 Vorrichtung zum Quertrennen und Verbinden einer laufenden Bahn mit einer neuen Hülse bei selbsttätigen Wickelmaschinen Revoked EP0363295B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8813379 1988-10-05
FR8813379A FR2637276B1 (fr) 1988-10-05 1988-10-05 Dispositif de raccordement et de coupe d'une bande, en fonctionnement, sur un nouveau mandrin d'un enrouleur en continu

Publications (2)

Publication Number Publication Date
EP0363295A1 EP0363295A1 (de) 1990-04-11
EP0363295B1 true EP0363295B1 (de) 1994-07-20

Family

ID=9370916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890440105 Revoked EP0363295B1 (de) 1988-10-05 1989-10-03 Vorrichtung zum Quertrennen und Verbinden einer laufenden Bahn mit einer neuen Hülse bei selbsttätigen Wickelmaschinen

Country Status (3)

Country Link
EP (1) EP0363295B1 (de)
DE (1) DE68916895T2 (de)
FR (1) FR2637276B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3906309A1 (de) * 1989-02-28 1990-08-30 Windmoeller & Hoelscher Vorrichtung zum aufwickeln von bahnen auf mit einem klebstoffauftrag versehene wickelhuelsen
FI94514C (fi) * 1990-06-08 1995-09-25 Valmet Paper Machinery Inc Katkaisulaite rainan rullauslaitetta varten
DE4310900A1 (de) * 1993-04-02 1994-10-06 Basf Magnetics Gmbh Trenn- und Anlegevorrichtung für Materialbahnen an Wickelmaschinen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383062A (en) * 1965-06-30 1968-05-14 Black Clawson Co Method and apparatus for continuously winding web material with constant tension
US3704835A (en) * 1971-07-13 1972-12-05 Arthur E Harley Roll changing system
GB1453933A (en) * 1972-12-13 1976-10-27 Agfa Gevaert Automatic winding and cutting apparatus for webs
DE2301193C2 (de) * 1973-01-11 1985-09-19 Maschinenfabrik Stahlkontor Weser Lenze KG, 3258 Aerzen Vorrichtung zum Wickelrollenwechsel und zum Quertrennen von schnellaufenden Bahnen
DE2418409A1 (de) * 1974-04-17 1975-10-30 Weser Lenze Stahlkontor Vorrichtung zum rollenwechsel und zum quertrennen von mit hoher geschwindigkeit laufenden bahnen bei mehrfach-wickelmaschinen
US4530265A (en) * 1982-11-03 1985-07-23 Worldwide Converting Machinery, Inc. Rotary cutoff knife

Also Published As

Publication number Publication date
DE68916895T2 (de) 1995-01-05
FR2637276A1 (fr) 1990-04-06
FR2637276B1 (fr) 1991-08-09
DE68916895D1 (de) 1994-08-25
EP0363295A1 (de) 1990-04-11

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