EP0363295A1 - Device for cutting and uniting a moving web on a mandrel in continuous-winding machines - Google Patents

Device for cutting and uniting a moving web on a mandrel in continuous-winding machines Download PDF

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Publication number
EP0363295A1
EP0363295A1 EP89440105A EP89440105A EP0363295A1 EP 0363295 A1 EP0363295 A1 EP 0363295A1 EP 89440105 A EP89440105 A EP 89440105A EP 89440105 A EP89440105 A EP 89440105A EP 0363295 A1 EP0363295 A1 EP 0363295A1
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EP
European Patent Office
Prior art keywords
arms
strip
cylinder
pivoting
knife
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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
EP89440105A
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German (de)
French (fr)
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EP0363295B1 (en
Inventor
André Steffen
Claude Kleitz
André Wolff
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Monomatic SA
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Monomatic SA
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Application filed by Monomatic SA filed Critical Monomatic SA
Publication of EP0363295A1 publication Critical patent/EP0363295A1/en
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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 the production of coils, in particular continuously, and relates to a device for connecting and cutting 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 carrying out 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.
  • the present invention aims to overcome these drawbacks.
  • a device for connecting and cutting a strip, in operation, on a new mandrel of a continuous winder characterized in that it is essentially constituted by a transverse knife mounted on a pair of arms pivoting under the action of at least one jack, said arms being mounted on a retractable connection device in the rest position, and by means of applying the strip end to the new mandrel.
  • 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 characterized in that it 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 simple axis line.
  • the arms 6 are mounted on a retractable connection device 8 in the rest position.
  • the device 4 includes a means 9 for applying the strip end to the new mandrel 2.
  • the retractable connection device 8 in the rest position is constituted by a pair of arms 10 pivotally mounted on the chassis of the machine. roll 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 a axis 15 of pivoting support arms 6 for receiving the transverse knife 5 and a cylinder 16 for deflecting the strip material 1, the axis of the latter extending in front of the axis 15 for supporting arms 6 in the direction for pivoting the arms 10 from the rest position of the device 8 to its service position.
  • the 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 levers 13 turned in the direction of pivoting of the latter, the actuation in the retracted position of the tabs 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 further provided with stops 17 for application against a corresponding stiffening crosspiece 14 in the knife's rest position.
  • connection device 8 The pivoting angle of the connection device 8 between its rest position and its service position and determined, in known manner, by the stroke of the piston rod of the jack 12 acting on the lever 13 integral with the axis 11 of pivoting arms 10.
  • the device according to the invention operates as follows:
  • 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 strip end is projected towards the new mandrel 2 and the brush 9, which sweeps the space behind the knife 5, presses said strip end 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 carry out a pivoting of the arms 6 in their starting position with application of their stop 17 against the stiffening crosspiece 14, the arrival in this position causing the actuation of the jack 12 bringing the connection device 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 connection device 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 strip cut on 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 device 8 ′ being carried out on an extension of the latter on the side opposite 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 pin 22 and connecting to the arm 10 ′ of the device 8 ′, by a cylinder 23 for applying the end of the strip cut on 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 cleats 26 each controlled by a pneumatic or electro-mechanical jack and guided in the arms 10 ′ of the device 8.
  • retractable cleats 26 each controlled by a pneumatic or electro-mechanical jack and guided in the arms 10 ′ of the device 8.
  • the arms 6 of the knife support 5 simultaneously lock in position of 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 device 8 ′ according to FIGS. 3 and 4 are identical to those of the device 8 according to FIGS. 1 and 2.
  • the operation of the device 8 ′ is also comparable to that of the device 8 with the exception of the direction of pivoting of the arms 10 ′ and of the complementary device 20.
  • FIG. 5 represents another alternative embodiment of the invention, in which the connection and cutting device consists of a transverse cylinder 27 provided with a tangential projecting knife 28, behind which extends, over part of the circumference of the cylinder 27, an application brush 29, the said cylinder 27 being, on the one hand, movably mounted in the direction of the strip 1 to be wound and cut, by means of pivoting arms 30 actuated by a connecting rod device -crank 31 or cam, and, on the other hand, actuated in rotation, according to a predetermined angular displacement controlled by sensors, by means of a brake motor known per se.
  • the connection and cutting device consists of a transverse cylinder 27 provided with a tangential projecting knife 28, behind which extends, over part of the circumference of the cylinder 27, an application brush 29, the said cylinder 27 being, on the one hand, movably mounted in the direction of the strip 1 to be wound and cut, by means of pivoting arms 30 actuated by a connecting rod device -crank 31 or cam, and, on
  • the drive of the connecting rod-crank device 31 or the axis of the cam is produced by means of a stepping motor, in synchronism with that of the cylinder 27, under the control of the position sensors assigned to the latter.
  • the position sensors, assigned to the cylinder 27 and controlling its rotation as well as its pivoting towards the strip to be cut, determine the exact position of the knife 28 of the cylinder 27, in the immediate vicinity of the strip to be cut, before its sudden rotation, simultaneously with the pivoting of the cylinder 27 in the direction of the new mandrel 2, so as to make a cut on the fly of the strip 1, almost tangentially to the mandrel 2, followed by an immediate application of the cut end of strip to the new mandrel 2 by means of the brush 29.
  • the sensors then detect the end of the brush 29 applied to the strip and control the stopping of the drive motor of the cylinder 27 and the lifting of the latter from the strip 1 to be wound.
  • the cylinder 27 is driven by means of an electromagnetic clutch interposed between said cylinder 27 and its drive motor and controlled by a tachometer as soon as a rotation speed corresponding to a speed is reached. tangential of the cylinder 27 at least equal to the speed of travel of the strip 1.
  • the drive motor of the cylinder 27 is first launched at high speed, then the electromagnetic clutch is controlled in order to carry out a drive abrupt of the cylinder 27 which is simultaneously approached the strip to be cut 2 with the knife 28 in the immediate vicinity of said strip to be cut, this knife 28 then making a cut on the fly followed immediately by application of the end of the new strip on the new mandrel 2 without forming a flap.
  • the sensors assigned to the positioning of the cylinder 27 carry out the disengaging and pivoting commands of the cylinder 27 away from the new mandrel 2 in order to avoid a second passage of the knife in the strip travel space 1.
  • 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 detrimental, in particular, in the case of winding of material in fragile strip.

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  • Replacement Of Web Rolls (AREA)

Abstract

The present invention relates to a device for joining and cutting a moving web on a new winding tube of a continuous-winding machine. Device characterised in that it essentially consists of a transverse blade (5) mounted on a pair of arms (6) pivoting under the action of at least one rapid-action jack (7), the said arms (6) being mounted on a joining device (8) which can be retracted into the rest position, and of a means (9) for applying the web end (1) onto the new winding tube (2). <IMAGE>

Description

La présente invention concerne le domaine des machines à enrouler des matières en bandes pour la réa­lisation de bobines, en particulier en continu, et a pour objet un dispositif de raccordement et de coupe d'une bande, en fonctionnement, sur un nouveau mandrin d'un enrouleur en continu.The present invention relates to the field of machines for winding materials into strips for the production of coils, in particular continuously, and relates to a device for connecting and cutting a strip, in operation, on a new mandrel. a continuous reel.

L'enroulement de bandes au moyen de machines à enrouler pose généralement le problème de l'application correcte de l'extrémité de la bande sur le mandrin après la coupe. A cet effet, il est possible de réaliser une application correcte de ladite extrémité par arrêt de la bande ou par freinage de sa vitesse de défilement. (Tou­tefois, un tel procédé est dommageable pour le rendement global de l'installation et la coupe à vitesse normale de fonctionnement avec application sur le nouveau man­drin s'impose pour des raisons économiques.The winding of strips by means of winding machines generally poses the problem of the correct application of the end of the strip to the mandrel after cutting. To this end, it is possible to apply the said end correctly by stopping the strip or by braking its running speed. (However, such a process is damaging to the overall performance of the installation and cutting at normal operating speed with application to the new mandrel is necessary for economic reasons.

A cet effet, il a été proposé une machine à enrouler pourvue d'un dispositif de coupe pivotant au­tour du mandrin de réception de l'extrémité de bande à enrouler et réalisant simultanément la coupe de ladite extrémité, qui se rabat sur ledit mandrin et est serrée par la bande s'enroulant sur ce dernier.For this purpose, 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 carrying out the cutting of said end, which folds over said mandrel and is tightened by the band winding on the latter.

Il existe également une machine à enrouler mettant en oeuvre un dispositif de coupe en deux élé­ments coopérant, dont l'un des éléments est un couteau et l'autre un cylindre muni d'une encoche longitudinale coopérant avec ledit couteau et appliquant l'extrémité de bande sur le nouveau mandrin.There is also 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.

On connaît, par ailleurs, également des moyens de coupe pénétrant dans le parcours de défilement de la bande et munis d'un dispositif destiné à appliquer l'extrémité de la bande sur le nouveau mandrin, tel qu'une brosse.Known, moreover, also cutting means penetrating the travel path of the strip and provided with a device intended to apply the end of the strip on the new mandrel, such as a brush.

Ces moyens de coupe et d'application connus permettent, certes, d'améliorer le rendement, notamment en permettant un moindre ralentissement de la vitesse de défilement de la bande lors de la coupe, en particulier dans le cas d'utilisation de brosses d'application. Tou­tefois, ces dispositifs deviennent inopérants en présen­ce des vitesses de défilement de plus en plus rapides mises en oeuvre sur les machines à enrouler actuelles, de sorte qu'il se forme généralement un rabat au début de l'enroulement sur le nouveau mandrin, rabat pouvant être préjudiciable à la formation de la bobine. En ou­tre, de tels rabats ne sont pas admissibles dans le cas d'enroulement de matières en bandes relativement fragi­les telles que des films de plaquage, de mica, ou analo­gues.These known cutting and application means certainly make it possible to improve the yield, in particular by allowing a slower slowing down of the running speed of the strip during cutting, in particular in the case of the use of brushes. application. However, these devices become inoperative in the presence of the increasingly rapid running speeds implemented on current winding machines, so that a flap is generally formed at the start of winding on the new mandrel, flap being able to be detrimental to the formation of the coil. Furthermore, such flaps are not permissible in the case of winding of relatively fragile strip materials such as plating films, mica, or the like.

La présente invention a pour but de pallier ces inconvénients.The present invention aims to overcome these drawbacks.

Elle a, en effet, pour objet un dispositif de raccordement et de coupe d'une bande, en fonctionnement, sur un nouveau mandrin d'un enrouleur en continu, carac­térisé en ce qu'il est essentiellement constitué par un couteau transversal monté sur une paire de bras pivotant sous l'action d'au moins un vérin, lesdits bras étant montés sur un dispositif de raccordement escamotable en position de repos, et par un moyen d'application de l'extrémité de bande sur le nouveau mandrin.It has, in effect, a device for connecting and cutting a strip, in operation, on a new mandrel of a continuous winder, characterized in that it is essentially constituted by a transverse knife mounted on a pair of arms pivoting under the action of at least one jack, said arms being mounted on a retractable connection device in the rest position, and by means of applying the strip end to the new mandrel.

L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à des modes de réalisation préférés, donnés à titre d'exemple non limi­tatif, et expliqués avec référence aux dessins schémati­ques annexés, dans lesquels :

  • la figure 1 est une vue en élévation latérale d'une machine à enrouler muni d'un dispositif conforme à l'invention ;
  • la figure 2 est une vue en élévation latérale à plus grande échelle du dispositif conforme à l'inven­tion ;
  • la figure 3 est une vue analogue à celle de la figure 2 d'une variante de réalisation de l'invention ;
  • la figure 4 est une vue en élévation latérale, à plus grande échelle, du dispositif suivant la figure 3, et
  • la figure 5 est une vue partielle en coupe d'une autre variante de réalisation de l'invention.
The invention will be better understood from the following description, which relates to preferred embodiments, given by way of nonlimiting example, and explained with reference to the appended schematic drawings, in which:
  • Figure 1 is a side elevational view of a winding machine provided with a device according to the invention;
  • Figure 2 is a side elevational view on a larger scale of the device according to the invention;
  • Figure 3 is a view similar to that of Figure 2 of an alternative embodiment of the invention;
  • FIG. 4 is a side elevation view, on a larger scale, of the device according to FIG. 3, and
  • Figure 5 is a partial sectional view of another alternative embodiment of the invention.

La figure 1 des dessins annexés représente une machine à enrouler en continu une matière en bande 1 sur des mandrins 2. Après obtention d'une bobine 3 de diamè­tre désiré, la bande en défilement est coupée et son ex­trémité est appliquée sur un nouveau mandrin 2, pour la réalisation d'une nouvelle bobine 3, au moyen d'un dis­positif 4 de raccordement et de coupe d'une bande 1 pen­dant le fonctionnement de la machine à enrouler, confor­me à l'invention.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.

Comme le montre plus particulièrement, à titre d'exemple, la figure 2 des dessins annexés, ledit dispo­sitif 4 de raccordement et de coupe d'une bande 1, en fonctionnement, sur un nouveau mandrin 2 d'un enrouleur en continu, est caractérisé en ce qu'il est essentielle­ment constitué par un couteau transversal 5 qui est mon­té sur une paire de bras 6 pivotant sous l'action d'au moins un vérin 7 à action rapide, de préférence un vérin pneumatique. Ce vérin 7 est représenté sur le dessin par un simple trait d'axe. Les bras 6 sont montés sur un dispositif de raccordement 8 escamotable en position de repos.As shown more particularly, by way of example, FIG. 2 of the accompanying drawings, said device 4 for connecting and cutting a strip 1, in operation, on a new mandrel 2 of a continuous winder, is characterized in that it 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 simple axis line. The arms 6 are mounted on a retractable connection device 8 in the rest position.

En outre, le dispositif 4 comporte un moyen 9 d'application de l'extrémité de bande sur le nouveau mandrin 2.In addition, the device 4 includes a means 9 for applying the strip end to the new mandrel 2.

Le dispositif 8 de raccordement escamotable en position de repos est constitué par une paire de bras 10 montée à pivotement sur le châssis de la machine à en­ rouler au moyen d'un axe 11 et pivotable autour de cet axe 11 au moyen d'un vérin 12 agissant sur un levier 13 solidaire dudit axe 11, les bras 10 étant reliés entre eux au moyen de traverses de rigidification 14, d'un axe 15 de support pivotant des bras 6 de réception du cou­teau transversal 5 et d'un cylindre 16 de déviation de la matière en bande 1, l'axe de ce dernier s'étendant devant l'axe 15 de support des bras 6 en direction de pivotement des bras 10 de la position de repos du dispo­sitif 8 vers sa position de service.The retractable connection device 8 in the rest position is constituted by a pair of arms 10 pivotally mounted on the chassis of the machine. roll 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 a axis 15 of pivoting support arms 6 for receiving the transverse knife 5 and a cylinder 16 for deflecting the strip material 1, the axis of the latter extending in front of the axis 15 for supporting arms 6 in the direction for pivoting the arms 10 from the rest position of the device 8 to its service position.

Conformément à une autre caractéristique de l'invention, le dispositif 4 est pourvu d'un moyen 4′ de blocage en position de repos, sous forme de taquets es­camotables sous l'action de vérins ou d'électro-aimants et coopérant avec le bord des leviers 13 tourné en di­rection du pivotement de ces derniers, l'actionnement en position d'escamotage des taquets 4′ étant réalisé si­multanément à la commande d'actionnement en pivotement en position de service du dispositif de raccordement 8.According to another characteristic of the invention, the 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 levers 13 turned in the direction of pivoting of the latter, the actuation in the retracted position of the tabs 4 ′ being carried out simultaneously with the actuation command in pivoting in the service position of the connection device 8.

Le couteau transversal 5 est monté sur les ex­trémités des bras 6, avec une inclinaison par rapport à ces dernières et est surmonté par le moyen 9 d'applica­tion de l'extrémité de bande sur le nouveau mandrin 2, qui est constitué sous forme d'une brosse s'étendant sensiblement à angle droit par rapport au couteau 5, les bras 6 étant munis, en outre, de butées 17 d'application contre une traverse de rigidification 14 correspondante en position de repos du couteau.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 further provided with stops 17 for application against a corresponding stiffening crosspiece 14 in the knife's rest position.

L'angle de pivotement du dispositif de raccor­dement 8 entre sa position de repos et sa position de service et déterminé, de manière connue, par la course de la tige de piston du vérin 12 agissant sur le levier 13 solidaire de l'axe 11 de pivotement des bras 10.The pivoting angle of the connection device 8 between its rest position and its service position and determined, in known manner, by the stroke of the piston rod of the jack 12 acting on the lever 13 integral with the axis 11 of pivoting arms 10.

De même, le pivotement des bras 6 portant le couteau 5 et la brosse 9 formant le moyen d'application de l'extrémité de bande sur le nouveau mandrin 2 est également déterminé par la course de la tige de piston du vérin 7.Similarly, the pivoting of the arms 6 carrying the knife 5 and the brush 9 forming the means for applying the strip end to the new mandrel 2 is also determined by the stroke of the piston rod cylinder 7.

Le dispositif conforme à l'invention fonction­ne de la manière suivante :The device according to the invention operates as follows:

En fin d'enroulement d'une bobine 3 sur un mandrin 2, ledit mandrin 2 avec la bobine 3 pivote vers une position de déchargement de la bobine 3 et le dispo­sitif de raccordement 8 est déplacé dans sa position de travail par action du vérin 12 sur le levier 13, après escamotage des taquets 4′ lors de la commande de pivote­ment, ce qui a pour effet d'appliquer le cylindre 16 de déviation de la matière en bande 1 sur ladite bande 1 et ainsi de rapprocher cette dernière du nouveau mandrin 2 qui est disposé à 180 ° par rapport au mandrin de la bo­bine pleine.At the end of winding 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 connection device 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 ° relative to the mandrel of the full reel.

Le vérin 7 est alors actionné et provoque un pivotement rapide des bras 6 autour de leur axe de sup­port 15 ayant pour effet de déplacer très rapidement le couteau 5 à travers le plan de défilement de la bande 1 et de couper cette dernière à la volée, de sorte que l'extrémité de bande coupée est projetée en direction du nouveau mandrin 2 et la brosse 9, qui balaye l'espace derrière le couteau 5, appuie ladite extrémité de bande 1 sur ledit mandrin 2 en glissant sur ce dernier, de sorte que ladite extrémité est entièrement appliquée sur ledit mandrin 2 sans formation d'un rabat. Ensuite, le vérin 7 est actionné en sens inverse afin de réaliser un pivotement des bras 6 dans leur position de départ avec application de leur butée 17 contre la traverse de rigi­dification 14, l'arrivée dans cette position provoquant l'actionnement du vérin 12 ramenant le dispositif de raccordement 8 dans sa position de départ prêt pour une nouvelle opération de coupe de bande après rotation par­tielle de la bobine en cours d'enroulement et présenta­tion, en position de raccordement, d'un nouveau mandrin vide 2.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 strip end is projected towards the new mandrel 2 and the brush 9, which sweeps the space behind the knife 5, presses said strip end 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. Then, the jack 7 is actuated in the opposite direction in order to carry out a pivoting of the arms 6 in their starting position with application of their stop 17 against the stiffening crosspiece 14, the arrival in this position causing the actuation of the jack 12 bringing the connection device 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.

Les figures 3 et 4 des dessins annexés repré­sentent une variante de réalisation de l'invention, dans laquelle le dispositif 8′ de raccordement escamotable en position de repos est muni, à l'extrémité opposée de son axe de pivotement 18, d'un cylindre de déviation 19 et d'un dispositif complémentaire 20 d'application du début de bande coupée sur le nouveau mandrin 2 coopérant, pen­dant le mouvement de coupe à la volée du couteau trans­versal 5, avec les bras 6 de ce dernier, l'actionnement en pivotement des bras 10′ du dispositif 8′ étant réali­sé sur un prolongement de ces derniers du côté opposé au cylindre de déviation 19 au moyen d'au moins un vérin 12′ .Figures 3 and 4 of the accompanying drawings show an alternative embodiment of the invention, in which the retractable connection device 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 strip cut on 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 device 8 ′ being carried out on an extension of the latter on the side opposite the deflection cylinder 19 by means of at least one cylinder 12 ′.

Le dispositif complémentaire 20 d'application du début de bande se présente sous la forme d'un élément pivotant constitué par deux joues latérales 21 reliées entre elles par un axe 22 de pivotement et de liaison au bras 10′ du dispositif 8′, par un cylindre 23 d'applica­tion de l'extrémité de bande coupée sur le nouveau man­drin 2 et par des galets 24 d'appui sur une face corres­pondante des bras 6 de support du couteau transversal 5, les joues 21 étant chargées chacune individuellement, du côté opposé aux galets 24 par un vérin 25 correspondant ou, ensemble, par l'intermédiaire d'un axe de liaison, par un vérin unique.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 pin 22 and connecting to the arm 10 ′ of the device 8 ′, by a cylinder 23 for applying the end of the strip cut on 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.

Ainsi, il est possible de réaliser, d'une part, un appui de l'extrémité coupée de la bande sur le nouveau mandrin 2 favorisant un collage efficace de la­dite extrémité sur ledit mandrin, grâce au cylindre d'application 23, et, d'autre part, de garantir un bas­culement synchronisé du couteau 5 et dudit cylindre 23 vers le mandrin 2 ainsi que de donner une impulsion com­plémentaire de pivotement pour une coupe à la volée par le couteau 5, grâce à la prévision des galets 24 faisant coopérer le dispositif 20 avec les bras 6 de support du couteau 5.Thus, it is possible, on the one hand, to support the cut end of the strip on the new mandrel 2 promoting effective bonding of said end on said mandrel, thanks to the application cylinder 23, and, d on the other hand, to guarantee a synchronized tilting of the knife 5 and of said cylinder 23 towards the mandrel 2 as well as to give an additional pivoting impulse for a cut on the fly by the knife 5, thanks to the provision of rollers 24 making the device 20 with the arms 6 for supporting the knife 5.

Selon une autre caractéristique de l'inven­tion, les bras 6 de support du couteau 5 sont maintenus, en position rétractée de ce dernier, avant une opération de coupe, au moyen de taquets escamotables 26 commandés chacun par un vérin pneumatique ou électro-mécanique et guidés dans les bras 10′ du dispositif 8. Dans la posi­tion de repos, les bras 6 de support du couteau 5 réali­sent simultanément le blocage en position de repos du dispositif complémentaire 20 d'application de l'extrémi­té de bande coupée sur le nouveau mandrin 2.According to another characteristic of the invention, 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 cleats 26 each controlled by a pneumatic or electro-mechanical jack and guided in the arms 10 ′ of the device 8. In the rest position, the arms 6 of the knife support 5 simultaneously lock in position of rest of the complementary device 20 for applying the cut end of the strip to the new mandrel 2.

Le mode de réalisation suivant les figures 3 et 4 permet d'améliorer encore l'application de l'extré­mité coupée de bande sur le nouveau mandrin, sans forma­tion de rabat et de garantir un enroulement sûr, sous-­tension, du début de bande. En effet, du fait de l'ap­plication sous pression de la bande 1 à enrouler sur le mandrin 2 par le cylindre 23, la traction existante sur la bande à enrouler 1 est annihilée, de sorte qu'un échappement de ladite extrémité sous ladite traction est rendu impossible.The embodiment according to 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.

Les autres parties constituantes du dispositif 8′ selon les figures 3 et 4 sont identiques à celles du dispositif 8 selon les figures 1 et 2. Le fonctionnement du dispositif 8′ est également comparable à celui du dispositif 8 à l'exception de la direction de pivotement des bras 10′ et du dispositif complémentaire 20.The other constituent parts of the device 8 ′ according to FIGS. 3 and 4 are identical to those of the device 8 according to FIGS. 1 and 2. The operation of the device 8 ′ is also comparable to that of the device 8 with the exception of the direction of pivoting of the arms 10 ′ and of the complementary device 20.

La figure 5 représente une autre variante de réalisation de l'invention, dans laquelle le dispositif de raccordement et de coupe est constitué par un cylin­dre transversal 27 muni d'un couteau saillant tangentiel 28, derrière lequel s'étend, sur une partie de la cir­conférence du cylindre 27, une brosse d'application 29, ledit cylindre 27 étant, d'une part, monté de manière déplaçable en direction de la bande 1 à enrouler et à couper, au moyen de bras pivotants 30 actionnés par un dispositif à bielle-manivelle 31 ou à came, et, d'autre part, actionné en rotation, suivant un déplacement angu­laire prédéterminé contrôlé par des capteurs, au moyen d'un moteur frein connu en soi.FIG. 5 represents another alternative embodiment of the invention, in which the connection and cutting device consists of a transverse cylinder 27 provided with a tangential projecting knife 28, behind which extends, over part of the circumference of the cylinder 27, an application brush 29, the said cylinder 27 being, on the one hand, movably mounted in the direction of the strip 1 to be wound and cut, by means of pivoting arms 30 actuated by a connecting rod device -crank 31 or cam, and, on the other hand, actuated in rotation, according to a predetermined angular displacement controlled by sensors, by means of a brake motor known per se.

L'entraînement du dispositif bielle-manivelle 31 ou de l'axe de la came est réalisé au moyen d'un mo­teur pas à pas, en synchronisme avec celui du cylindre 27, sous le contrôle des capteurs de position affectés à ce dernier. Les capteurs de position, affectés au cylin­dre 27 et commandant sa rotation ainsi que son pivote­ment en direction de la bande à couper, déterminent la position exacte du couteau 28 du cylindre 27, à proximi­té immédiate de la bande à couper, avant sa rotation brusque, simultanément au pivotement du cylindre 27 en direction du nouveau mandrin 2, de manière à réaliser une coupe à la volée de la bande 1, quasiment tangen­tiellement au mandrin 2, suivie d'une application immé­diate de l'extrémité de bande coupée sur le nouveau man­drin 2 au moyen de la brosse 29. Les capteurs détectent alors la fin de la brosse 29 appliquée sur la bande et commandent l'arrêt du moteur d'entraînement du cylindre 27 et le soulèvement de ce dernier de la bande 1 à en­rouler.The drive of the connecting rod-crank device 31 or the axis of the cam is produced by means of a stepping motor, in synchronism with that of the cylinder 27, under the control of the position sensors assigned to the latter. The position sensors, assigned to the cylinder 27 and controlling its rotation as well as its pivoting towards the strip to be cut, determine the exact position of the knife 28 of the cylinder 27, in the immediate vicinity of the strip to be cut, before its sudden rotation, simultaneously with the pivoting of the cylinder 27 in the direction of the new mandrel 2, so as to make a cut on the fly of the strip 1, almost tangentially to the mandrel 2, followed by an immediate application of the cut end of strip to the new mandrel 2 by means of the brush 29. The sensors then detect the end of the brush 29 applied to the strip and control the stopping of the drive motor of the cylinder 27 and the lifting of the latter from the strip 1 to be wound.

Selon une caractéristique de l'invention, le cylindre 27 est entraîné au moyen d'un embrayage électro-magnétique interposé entre ledit cylindre 27 et son moteur d'entraînement et commandé par un tachymètre dès atteinte d'une vitesse de rotation correspondant à une vitesse tangentielle du cylindre 27 au moins égale à la vitesse de défilement de la bande 1. Ainsi, le moteur d'entraînement du cylindre 27 est d'abord lancé à grande vitesse, puis l'embrayage électro-magnétique est comman­dé afin de réaliser un entraînement brusque du cylindre 27 qui est approché simultanément de la bande à couper 2 avec le couteau 28 à proximité immédiate de ladite bande à couper, ce couteau 28 réalisant alors une coupe à la volée suivie immédiatement d'une application de l'extré­mité de la nouvelle bande sur le nouveau mandrin 2 sans formation d'un rabat. Les capteurs affectés au position­nement du cylindre 27 réalisent les commandes de dé­brayage et de pivotement du cylindre 27 à l'écart du nouveau mandrin 2 afin d'éviter un deuxième passage du couteau dans l'espace de défilement de la bande 1.According to a characteristic of the invention, the cylinder 27 is driven by means of an electromagnetic clutch interposed between said cylinder 27 and its drive motor and controlled by a tachometer as soon as a rotation speed corresponding to a speed is reached. tangential of the cylinder 27 at least equal to the speed of travel of the strip 1. Thus, the drive motor of the cylinder 27 is first launched at high speed, then the electromagnetic clutch is controlled in order to carry out a drive abrupt of the cylinder 27 which is simultaneously approached the strip to be cut 2 with the knife 28 in the immediate vicinity of said strip to be cut, this knife 28 then making a cut on the fly followed immediately by application of the end of the new strip on the new mandrel 2 without forming a flap. The sensors assigned to the positioning of the cylinder 27 carry out the disengaging and pivoting commands of the cylinder 27 away from the new mandrel 2 in order to avoid a second passage of the knife in the strip travel space 1.

Grâce à l'invention, il est possible de réali­ser un dispositif de raccordement et de coupe d'une ban­de, en fonctionnement, sur un nouveau mandrin d'un en­rouleur en continu, permettant d'assurer une application correcte de l'extrémité de la nouvelle bande sur le nou­veau mandrin, sans formation d'un rabat qui serait pré­judiciable, notamment, dans le cas d'enroulement de ma­tière en bande fragile.Thanks to 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 detrimental, in particular, in the case of winding of material in fragile strip.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés aux des­sins annexés. Des modifications restent possibles, no­tamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (11)

1. Dispositif de raccordement et de coupe d'une bande (1), en fonctionnement, sur un nouveau man­drin (2) d'un enrouleur en continu, caractérisé en ce qu'il est essentiellement constitué par un moyen de cou­pe à la volée et par un moyen d'application de l'extré­mité de la bande (1) sur des nouveaux mandrins (2).1. Device for connecting and cutting a strip (1), in operation, on a new mandrel (2) of a continuous winder, characterized in that it is essentially constituted by a cutting means on the fly and by a means for applying the end of the strip (1) to new mandrels (2). 2. Dispositif, suivant la revendication 1, ca­ractérisé en ce qu'il est constitué par un couteau transversal (5) monté sur une paire de bras (6) pivotant sous l'action d'au moins un vérin (7) à action rapide, lesdits bras (6) étant montés sur un dispositif de rac­cordement (8, 8′) escamotable en position de repos, et par un moyen (9) d'application de l'extrémité de bande (1) sur le nouveau mandrin (2).2. Device according to claim 1, characterized in that it is constituted by a transverse knife (5) mounted on a pair of arms (6) pivoting under the action of at least one jack (7) with rapid action , said arms (6) being mounted on a retractable connection device (8, 8 ′) in the rest position, and by means (9) for applying the strip end (1) to the new mandrel (2 ). 3. Dispositif, suivant la revendication 2, ca­ractérisé en ce que le dispositif (8) de raccordement escamotable en position de repos est constitué par une paire de bras (10) montée à pivotement sur le châssis de la machine à enrouler au moyen d'un axe (11) et pivota­ble autour de cet axe (11) au moyen d'un vérin (12) agissant sur un levier (13) solidaire dudit axe (11), les bras (10) étant reliés entre eux au moyen de traver­ses de rigidification (14), d'un axe (15) de support pi­votant des bras (6) de réception du couteau transversal (5) et d'un cylindre (16) de déviation de la matière en bande (1), l'axe de ce dernier s'étendant devant l'axe (15) de support des bras (6) en direction de pivotement des bras (10) de la position de repos du dispositif (8) vers sa position de service.3. Device according to claim 2, characterized in that the device (8) retractable connection 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 crosspieces stiffening (14), an axis (15) pivoting support arms (6) for receiving the transverse knife (5) and a cylinder (16) for deflecting the strip material (1), the axis of the latter extending in front of the arm support axis (15) (6) in the direction of pivoting of the arms (10) from the rest position of the device (8) towards its service position. 4. Dispositif, suivant l'une quelconque des revendications 2 et 3, caractérisé en ce que le disposi­tif (4) est pourvu d'un moyen (4′) de blocage en posi­ tion de repos, sous forme de taquets escamotables sous l'action de vérins ou d'électro-aimants et coopérant avec le bord des leviers (13) tourné en direction du pi­votement de ces derniers, l'actionnement en position d'escamotage des taquets (4′) étant réalisé simultané­ment à la commande d'actionnement en pivotement en posi­tion de service du dispositif de raccordement (8).4. Device according to any one of claims 2 and 3, characterized in that the device (4) is provided with a means (4 ′) for locking in posi rest position, in the form of retractable cleats under the action of jacks or electromagnets and cooperating with the edge of the levers (13) turned in the direction of pivoting of the latter, actuation in the retracted position of the cleats (4 ′) being produced simultaneously with the pivoting actuation command in the service position of the connection device (8). 5. Dispositif, suivant la revendication 2, ca­ractérisé en ce que le couteau transversal (5) est monté sur les extrémités des bras (6), avec une inclinaison par rapport à ces dernières et est surmonté par le moyen (9) d'application de l'extrémité de bande sur le nouveau mandrin (2), qui est constitué sous forme d'une brosse s'étendant sensiblement à angle droit par rapport au couteau (5), les bras (6) étant munis, en outre, de bu­tées (17) d'application contre une traverse de rigidifi­cation (14) correspondante en position de repos du cou­teau.5. Device according to claim 2, characterized in that the transverse knife (5) is mounted on the ends of the arms (6), with an inclination relative to the latter and is overcome by the application means (9) of the strip end on the new mandrel (2), which is in the form of a brush extending substantially at right angles to the knife (5), the arms (6) being further provided with abutments (17) for application against a corresponding stiffening crosspiece (14) in the knife's rest position. 6. Dispositif, suivant la revendication 2, ca­ractérisé en ce que le dispositif (8′) de raccordement escamotable en position de repos est muni, à l'extrémité opposée de son axe de pivotement (18), d'un cylindre de déviation (19) et d'un dispositif complémentaire (20) d'application du début de bande coupée sur le nouveau mandrin (2) coopérant, pendant le mouvement de coupe à la volée du couteau transversal (5), avec les bras (6) de ce dernier, l'actionnement en pivotement des bras (10′) du dispositif (8′) étant réalisé sur un prolonge­ment de ces derniers du côté opposé au cylindre de dé­viation (19) au moyen d'au moins un vérin (12′).6. Device according to claim 2, characterized in that the device (8 ′) retractable connection in the rest position is provided, at the opposite end of its pivot axis (18), with a deflection cylinder ( 19) and of 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 device (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 jack (12 ′) . 7. Dispositif, suivant la revendication 6, ca­ractérisé en ce que le dispositif complémentaire (20) d'application du début de bande se présente sous la for­me d'un élément pivotant constitué par deux joues laté­rales (21) reliées entre elles par un axe (22) de pivo­tement et de liaison au bras (10′) du dispositif (8′), par un cylindre (23) d'application de l'extrémité de bande coupée sur le nouveau mandrin (2) et par des ga­lets (24) d'appui sur une face correspondante des bras (6) de support du couteau transversal (5), les joues (21) étant chargées chacune individuellement, du côté opposé aux galets (24) par un vérin (25) correspondant ou, ensemble, par l'intermédiaire d'un axe de liaison, par un vérin unique.7. Device according to claim 6, characterized in that 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 together by an axis (22) pivoting and connecting to the arm (10 ′) of the device (8 ′), by a cylinder (23) for applying the end of strip cut on 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, via a connecting pin, by a single jack. 8. Dispositif, suivant l'une quelconque des revendications 6 et 7, caractérisé en ce que les bras (6) de support du couteau (5) sont maintenus, en posi­tion rétractée de ce dernier, avant une opération de coupe, au moyen de taquets escamotables (26) commandés chacun par un vérin pneumatique ou électro-mécanique et guidés dans les bras (10′) du dispositif (8).8. Device according to any one of claims 6 and 7, characterized in that the arms (6) for supporting the knife (5) are held, in the retracted position of the latter, before a cutting operation, by means of retractable cleats (26) each controlled by a pneumatic or electro-mechanical cylinder and guided in the arms (10 ′) of the device (8). 9. Dispositif, suivant la revendication 1, ca­ractérisé en ce que le moyen de coupe à la volée est constitué par un cylindre transversal (27) muni d'un couteau saillant tangentiel (28), derrière lequel s'étend, sur une partie de la circonférence du cylindre (27), le moyen d'application de l'extrémité de la bande (1) sur des nouveaux mandrins (2) sous forme d'une bros­se d'application (29), ledit cylindre (27) étant, d'une part, monté de manière déplaçable en direction de la bande (1) à enrouler et à couper, au moyen de bras pivotants (30) actionnés par un dispositif à bielle-manivelle (31) ou à came, et, d'autre part, actionné en rotation, suivant un déplacement angulaire prédéterminé contrôlé par des capteurs, au moyen d'un moteur frein connu en soi.9. Device according to claim 1, characterized in that the cutting means on the fly consists of a transverse cylinder (27) provided with a tangential projecting knife (28), behind which extends, over a part of the circumference of the cylinder (27), the means for applying the end of the strip (1) to new mandrels (2) in the form of an application brush (29), said cylinder (27) being, on the one hand, mounted movably in the direction of the strip (1) to be wound and cut, by means of pivoting arms (30) actuated by a rod-crank (31) or cam device, and, on the other hand, actuated in rotation, according to a predetermined angular displacement controlled by sensors, by means of a brake motor known per se. 10. Dispositif, suivant la revendication 9, caractérisé en ce que l'entraînement du dispositif bielle-manivelle (31) ou de l'axe de la came est réalisé au moyen d'un moteur pas à pas, en synchronisme avec ce­lui du cylindre (27), sous le contrôle des capteurs de position affectés à ce dernier.10. Device according to claim 9, characterized in that the driving of the connecting rod-crank device (31) or of the axis of the cam is carried out by means of a stepping motor, in synchronism with that of the cylinder (27), under the control of the position sensors assigned to the latter. 11. Dispositif, suivant la revendication 9, caractérisé en ce que le cylindre (27) est entraîné au moyen d'un embrayage électro-magnétique interposé entre ledit cylindre (27) et son moteur d'entraînement et com­mandé par un tachymètre dès atteinte d'une vitesse de rotation correspondant à une vitesse tangentielle du cylindre (27) au moins égale à la vitesse de défilement de la bande (1).11. Device according to claim 9, characterized in that the cylinder (27) is driven to by means of an electromagnetic clutch interposed between said cylinder (27) and its drive motor and controlled by a tachometer as soon as a speed of rotation corresponds to a tangential speed of the cylinder (27) at least equal to the speed strip travel (1).
EP19890440105 1988-10-05 1989-10-03 Device for cutting and uniting a moving web on a mandrel in continuous-winding machines Revoked EP0363295B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8813379A FR2637276B1 (en) 1988-10-05 1988-10-05 DEVICE FOR CONNECTING AND CUTTING A STRIP, IN OPERATION, ON A NEW MANDREL OF A CONTINUOUS REEL
FR8813379 1988-10-05

Publications (2)

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

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EP19890440105 Revoked EP0363295B1 (en) 1988-10-05 1989-10-03 Device for cutting and uniting a moving web on a mandrel in continuous-winding machines

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EP (1) EP0363295B1 (en)
DE (1) DE68916895T2 (en)
FR (1) FR2637276B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0385082A2 (en) * 1989-02-28 1990-09-05 WindmÀ¶ller & Hölscher Device for winding webs onto core tubes provided with an adhesive coating
EP0460395A1 (en) * 1990-06-08 1991-12-11 Valmet Paper Machinery Inc. Cutting device for a web winder
EP0618163A2 (en) * 1993-04-02 1994-10-05 BASF Magnetics GmbH Web cutting and attaching device in winders

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FR2213897A1 (en) * 1973-01-11 1974-08-09 Weser Lenze Kg Stahl Maschf
DE2418409A1 (en) * 1974-04-17 1975-10-30 Weser Lenze Stahlkontor Web winding machine roll change-over system - has cutting strip tensioned when full roll is swung down
US4530265A (en) * 1982-11-03 1985-07-23 Worldwide Converting Machinery, Inc. Rotary cutoff knife

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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
FR2210996A5 (en) * 1972-12-13 1974-07-12 Agfa Gevaert
FR2213897A1 (en) * 1973-01-11 1974-08-09 Weser Lenze Kg Stahl Maschf
DE2418409A1 (en) * 1974-04-17 1975-10-30 Weser Lenze Stahlkontor Web winding machine roll change-over system - has cutting strip tensioned when full roll is swung down
US4530265A (en) * 1982-11-03 1985-07-23 Worldwide Converting Machinery, Inc. Rotary cutoff knife

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0385082A2 (en) * 1989-02-28 1990-09-05 WindmÀ¶ller & Hölscher Device for winding webs onto core tubes provided with an adhesive coating
EP0385082B1 (en) * 1989-02-28 1994-12-14 WindmÀ¶ller & Hölscher Device for winding webs onto core tubes provided with an adhesive coating
EP0460395A1 (en) * 1990-06-08 1991-12-11 Valmet Paper Machinery Inc. Cutting device for a web winder
EP0618163A2 (en) * 1993-04-02 1994-10-05 BASF Magnetics GmbH Web cutting and attaching device in winders
EP0618163A3 (en) * 1993-04-02 1995-01-25 Basf Magnetics Gmbh Web cutting and attaching device in winders.
US5520352A (en) * 1993-04-02 1996-05-28 Basf Magnetics Gmbh Separating and applying apparatus for material webs on winding machines
KR100310513B1 (en) * 1993-04-02 2001-12-28 프리드리히 베케비츠 Devices for cutting and bonding material webs on winding machines

Also Published As

Publication number Publication date
FR2637276A1 (en) 1990-04-06
DE68916895T2 (en) 1995-01-05
EP0363295B1 (en) 1994-07-20
FR2637276B1 (en) 1991-08-09
DE68916895D1 (en) 1994-08-25

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