EP0216085B1 - Device for the coreless winding of web sections severed from a web along cross-perforations - Google Patents

Device for the coreless winding of web sections severed from a web along cross-perforations Download PDF

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Publication number
EP0216085B1
EP0216085B1 EP86110647A EP86110647A EP0216085B1 EP 0216085 B1 EP0216085 B1 EP 0216085B1 EP 86110647 A EP86110647 A EP 86110647A EP 86110647 A EP86110647 A EP 86110647A EP 0216085 B1 EP0216085 B1 EP 0216085B1
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EP
European Patent Office
Prior art keywords
winding
web
frame
arms
pegs
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
EP86110647A
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German (de)
French (fr)
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EP0216085A1 (en
Inventor
Friedhelm Dipl.-Ing. Mundus
Hans-Ludwig Dipl.-Ing. Voss
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Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Publication of EP0216085A1 publication Critical patent/EP0216085A1/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
    • B65H19/2276—The web roll being driven by a winding mechanism of the coreless type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/06—Lateral-supporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2207—Changing the web roll in winding mechanisms or in connection with winding operations the web roll being driven by a winding mechanism of the centre or core drive type
    • B65H19/2215—Turret-type with two roll supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/231—Turret winders
    • B65H2408/2315—Turret winders specified by number of arms
    • B65H2408/23152—Turret winders specified by number of arms with two arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/184—Wound packages
    • B65H2701/1846—Parts concerned

Definitions

  • the invention relates to a device for coreless winding of web sections according to the preamble of patent claim 1.
  • a device of this type known from DE-B-21 27 1208 the winding pins which project freely over the width of the material web in the winding position can be pivoted at the free ends in a winding head mounted levers, which are held, for example, by springs in their inner, pushed-together position and can be pivoted into their spread position by an axially displaceable mandrel with a conical end part which acts on corresponding guide surfaces of the levers.
  • a similar winding machine known from DE-B-24 00 016 also has winding pins which have to be pulled back and forth across the full width of the material web to be wound between winding heads and drive heads in order to be able to bring them into engagement with the material web to be wound up. Since the winding pins have a considerable length, they can be elastically compressed by the resiliently covered layers of the wound roll, so that they can still pinch the web lying between these winding pins when these are pulled off by the drive head that expands them.
  • the object of the invention is therefore to provide a device of the type specified at the outset with which the supply rolls can be wound with smaller axial displacement paths and radial spreading movements of the winding pins.
  • winding points or winding heads with winding pins are provided on both sides of the web, these need only execute short axial extension and retraction movements in order to reliably grasp and release the web, because angular axes guaranteeing good winding are already defined by the bilateral detection of only the edge regions of the web . Since the winding pins already have a sufficiently large transverse spacing relative to one another to ensure a trouble-free passage of the material web, they only have to make relatively small spreading movements after extending into their winding position, because there is sufficient loosening of the winding pins before pulling them out in the completely wound roll if these are returned to their unspread position.
  • the winding pins only need to perform a spreading movement which, after returning to their unspread position, is sufficient to loosen the winding pins in the finished roll winding and therefore only needs to be very small, while in the known device the winding pins travel over a larger radial distance, than it would be necessary for loosening per se to have to be spread in order to create such large distances between the winding pins that the path between them can pass without problems.
  • an only intermittently working winding device is known with only one winding station fixed to the frame, which consist of two opposite pairs of winding pins provided with a rotary drive, which can be pushed towards each other to capture a material web to be wound in sections without a core, so that the respective the two winding pins enclose the web between them, and which can be withdrawn beyond the side edge of the web to release a winding.
  • the winding pins are spread by an expanding wedge and by pulling back the expanding wedge, they spring back into their non-expanded position.
  • the known device is used for the intermittent unwinding of baffles which are separated from an endless web, in which the winding pins, which are displaceable towards and away from one another in a common plane, perform a pincer-like opening movement for grasping the web and a corresponding closing movement when they are retracted, so that the frictional engagement of the winding pins with the winding is reduced and the winding formed can be easily stripped from it.
  • the wrap still connected to the web then falls into a collecting trough.
  • pairs of clamping jaws which clamp the web are provided on both sides of the winding point and a separating knife between them.
  • the web clamped between the jaws is tightened by a tensioning device, so that the appropriately aligned and spread winding pins for gripping the web can be pushed towards each other again.
  • the known winding device does not allow winding and separation of a continuously fed web.
  • the web must not only be stopped to separate the respectively formed roll with a predetermined section length, it must also be clamped on both sides of the winding point by special clamping devices and cut through a special cutting device, which not only limits the winding performance, but also requires additional design effort.
  • the winding stations have support plates with bushes rotatably mounted in them and provided with the rotary drives, that the winding pins consist of angle levers which are pivotally mounted on a common transverse axis of a support piece which is rotatable at the front end of a support arm with the central axis of the bushing aligned piston rod of a pressure-medium piston-cylinder unit which is fixed to the frame is mounted such that the longer, the scissor-like legs of the bushing forming the winding pins are guided in a longitudinally displaceable manner and by springs in the direction of their unspread Position are applied and that the approximately right-angled shorter legs of the angle lever on opposite sides of the outward-facing end faces of the bushes against the end of the feed movement so that their longer legs penetrating the bushes are spread.
  • the support piece has a radial arm is provided, which cooperates with a control cam fixed to the frame when the piston rod is retracted and thereby rotates the longer legs in such a way that their central planes lying between their pivoting planes lie in the plane of the web to be grasped by them when they extend.
  • the support piece is expediently provided with two radial arms offset from one another by 180 °, which cooperate with a control cam which is fixed to the frame and concentrically surrounds the piston rod and which, starting from an apex, has two symmetrical, approximately elliptically curved, outwardly extending branches.
  • the winding stations are arranged in a turret-like manner in the machine frame in that the two support plates are designed in the form of circular disks and at least one is provided with external teeth which mesh with a drive pinion, and in that the support plates are provided with the winding stations offset by 180 °.
  • the winding stations can be changed by rotating the backing plates or turning them back and forth.
  • a central shaft which is provided with a rotary drive, is mounted in the support plates, which is in drive connection via clutch-brake combinations alternately with two parallel intermediate shafts mounted in the support plates, one of which via gear wheels , Belts or chains the rotary drive of the bushings of the winding stations is derived.
  • the guide rings are guided on the trusses of the frame so as to be displaceable and, for opposite adjustment, are provided with spindle nuts into which a spindle fixed to the frame is screwed, the central shaft and the drive elements being rotatably mounted on the support plates
  • Intermediate shafts which are designed as multi-spline shafts, are guided so as to be axially displaceable.
  • the side walls 1, 2 of the machine frame are connected to one another by a cross-beam 3, which forms a guide for support rings 4, 5 which are mounted on the cross-slide.
  • the support rings 4, 5 are additionally provided with spindle nuts 6, 7, into which the spindle 8 is screwed for opposing adjustment of the support rings 4, 5 with opposite threads.
  • the spindle 8 is rotatably but axially immovably mounted in the frame walls 1, 2 and provided with a handwheel 9.
  • the support rings 4, 5 are provided with mutually aligned annular inner edges 10, 11, on which rollers 12 provided with circumferential grooves run, which are mounted on the outer sides of circular disks 13, 14, the outer edges of which are provided with teeth 15.
  • the disc-shaped plates 13 are offset by 180 ° with mutually opposite winding heads 16, 17 and 18, 19.
  • the winding heads are of identical design, so that only the configuration of the winding head 16 is explained below with reference to FIG. 3.
  • the bearing ring 20 provided with a flange is held in a bore in the disk-shaped plate 13.
  • the bushing 21 is rotatably supported by two roller bearings.
  • the toothed belt pulley 22 is wedged onto the bushing 21 on the outside of the disk-shaped plate 13.
  • the bushing 21 serves to guide the scissor-like winding pins 23, 24 arranged axially displaceably therein.
  • the winding pins 23, 24 are formed by the longer legs of angle levers, which are pivoted about the common axis 25 in a forked end piece Z6 by small swivel angles. In the area of the bearing bores, shorter legs 27, 28 are connected to the legs forming the winding pins 23, 24, which carry rollers 29, 30 at the ends, by means of which they are supported on the outer side surface 31 of the toothed pulley 22.
  • the support piece 26 is rotatably supported by the roller bearing 33 in an axial bore 34 of the piston rod 35.
  • the associated pneumatic cylinders 36 are each firmly connected to the disk-shaped plates 13, 14 in a manner not shown.
  • the pneumatic cylinders 36 have flange plates at their outer ends, which are connected to the disk-shaped plates 13, 14 by means of stud bolts parallel to the pneumatic cylinders.
  • a pressure piece 38, 39 is supported on each of the scissor-type winding pins 23, 24.
  • the pressure pieces 38, 39 are acted upon by the compression springs 40, 41, which are clamped between them and the abutments 42, 43 connected to the bushing 21.
  • the spring-loaded pressure pieces 38, 39 seek to pivot the winding pins 23, 24 into their position pivoted in relation to one another. If the support member 26 is displaced in the direction of the bushing 21 by the piston rod 35, at the end of this feed movement the shorter legs 27, 28 connected to the winding pins 23, 24 meet the outer side surface 31 of the toothed pulley 22 via the rollers 29, 30 that the spreading pins 23, 24 are pivoted into their spread position shown in FIG. 3 by further advancement of the support piece 26.
  • guide slots are provided for the winding pins 23, 24, which hold them transversely to their pivoting planes at such a distance from one another that in their extended position, the web 46 to be wound up in sections runs smoothly between them can.
  • the fork 26 at the front end for supporting the winding pins 23, 24 has radially protruding arms 50, 51 which are offset by 180 ° and whose end regions cooperate with guide curves 52, 53 which are concentric on the end face of the piston rod 35 on the end face 6 facing the winding head 6 enclosing sleeve 54 are provided.
  • the guide curve consists of two branches 52, 53 starting from an upper vertex 55, which are arranged symmetrically to the vertex 55 and have an approximately elliptical course.
  • the motor 60 is flanged to the frame wall 2 to drive the winding heads 16 to 19.
  • the output shaft of the motor 60 is connected to a central splined shaft 62 via a toothed belt drive 61.
  • the splined shaft 62 passes through hubs 63, 64 of clutch-brake combinations 65, 66, which alternately couple the toothed pulleys 67, 68 to the splined shaft 62.
  • Parallel to the central spline shaft 62, spline intermediate shafts 70, 71 are provided, which pass through rotatably mounted hubs 72 to 75 in the disk-shaped plates 13, 14, on which toothed belt pulleys are fastened, which in the form shown in FIG. Z have endless toothed belts for the winding heads Drive 16 to 19.
  • the required switching current is supplied to the clutch-brake combinations 65, 66 via slip rings 77.
  • the central splined shaft 62 is provided, in a manner not shown, with an axial bore and a rotary feedthrough, from which the compressed air is fed to the pneumatic cylinders 36 through lines, also not shown.
  • the turret formed by the rotatable and axially adjustable disc-shaped plates 13, 14 with the winding heads 16 to 19 can be rotated via the geared motor 80, the drive pinion 81 of which meshes with the toothing of the disc 13.
  • the web 46 is guided in the manner shown in FIG. 1 via guide rolls 85, 86 to the winding point consisting, for example, of the winding heads 16, 17.
  • the fed web 46 runs between the winding pins 23, 24 of the winding heads 18, 19 which are arranged at a distance from one another. If a sufficiently long section with a predetermined number, for example, of garbage bags separated by transverse perforation lines, has been wound up, the clutch-brake combinations are switched over so that the winding heads 16, 17 are stopped and the winding heads 18, 19 of the other winding point between which the Material web runs through, start up. Through this start, the web is torn along a transverse perforation line, which is currently between the two winding stations, so that the finished wound roll can be stripped off by retracting the winding pins, while the following roll is wound in the other winding station.
  • the position of the winding positions is changed by rotating the disk-shaped plates 13, 14, so that the winding heads 16, 17 in FIG. 1 are then in the lower position.
  • the winding pins drawn in during the change of the winding positions are then extended again so that they grip the material web 46 passing between them and are in their standby position for the subsequent winding process.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum kernlosen Aufwickeln von Bahnabschnitten nach dem Oberbegriff des Patentanspruchs 1. Bei einer aus DE-B-21 27 128 bekannten Vorrichtung dieser Art sind die in der Wickelstellung über die Breite der Materialbahn frei auskragenden Wickelstifte an den freien Enden von schwenkbar in einem Wickelkopf gelagerten Hebeln befestigt, die beispielsweise durch Federn in ihrer inneren, zusammengeschobenen Stellung gehalten und durch einen axial verschieblichen Dorn mit kegeligem Endteil, das an entsprechenden Leitflächen der Hebel angreift, in ihre gespreizte Stellung verschwenkbar sind.The invention relates to a device for coreless winding of web sections according to the preamble of patent claim 1. In a device of this type known from DE-B-21 27 128, the winding pins which project freely over the width of the material web in the winding position can be pivoted at the free ends in a winding head mounted levers, which are held, for example, by springs in their inner, pushed-together position and can be pivoted into their spread position by an axially displaceable mandrel with a conical end part which acts on corresponding guide surfaces of the levers.

Eine ähnliche, aus DE-B-24 00 016 bekannte Wickelmaschine weist ebenfalls Wickelstifte auf, die über die volle Breite der aufzuwickelnden Materialbahn zwischen Wickelköpfen und Antriebsköpfen vor- und zurückgezogen werden müssen, um diese in Eingriff mit der aufzuwikkeinden Materialbahn bringen zu können. Da die Wickelstifte eine beträchtliche ,Länge aufweisen, können sie von den federnd überdeckten Lagen der wickelten Rolle elastisch zusammengedrückt werden, so daß sie auch dann noch die zwischen diesen Wickelstiften liegende Bahn einklemmen können, wenn diese von dem diese spreizenden Antriebskopf abgezogen werden.A similar winding machine known from DE-B-24 00 016 also has winding pins which have to be pulled back and forth across the full width of the material web to be wound between winding heads and drive heads in order to be able to bring them into engagement with the material web to be wound up. Since the winding pins have a considerable length, they can be elastically compressed by the resiliently covered layers of the wound roll, so that they can still pinch the web lying between these winding pins when these are pulled off by the drive head that expands them.

Aufgabe der Erfindung ist es daher, eine Vorrichtung der eingangs angegebenen Art zu schaffen, mit der sich die Vorratsrollen mit geringeren axialen Verschiebewegen und radialen Spreizbewegungen der Wickelstifte wickeln lassen.The object of the invention is therefore to provide a device of the type specified at the outset with which the supply rolls can be wound with smaller axial displacement paths and radial spreading movements of the winding pins.

Erfindungsgemäß wird diese Aufgabe bei einer Vorrichtung der gattungsgemäßen Art durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst.According to the invention, this object is achieved in a device of the generic type by the characterizing features of patent claim 1.

Da beidseits der Bahn Wickelstellen oder Wikkelköpfe mit Wickelstiften vorgesehen sind, brauchen diese nur kurze axiale Ausfahr- und Rückzugsbewegungen auszuführen, um die Bahn sicher zu erfassen und freizugeben, weil bereits durch das beidseitige Erfassen nur der Randbereiche der Bahn eine gute Wicklung gewährleistende Winkelachsen definiert sind. Da die Wickelstifte relativ zueinander bereits einen ausreichend großen Querabstand aufweisen, um einen störungsfreien Durchlauf der Materialbahn sicherzustellen, müssen diese nach dem Ausfahren in ihre Wickelstellung nur relativ geringe Spreizbewegungen ausführen, weil eine ausreichende Lockerung der Wickelstifte vor dem Herausziehen in der fertiggewickelten Rolle erfolgt, wenn diese in ihre ungespreizte Stellung zurückgeführt werden. Bei der erfindungsgemäßen Vorrichtung brauchen die Wickelstifte nur eine Spreizbewegung auszuführen, die nach Rückführung in ihre ungespreizte Stellung zur Lockerung der Wickelstifte in dem fertigen Rollenwickel ausreicht und daher nur sehr gering zu sein braucht, während bei der bekannten Vorichtung die Wickelstifte über eine größere radiale Strecke, als sie an sich zur Lockerung erforderlich wäre, gespreizt werden zu müssen, um zwischen den Wickelstiften so große Abstände zu schaffen, daß die bahn zwischen diesen störungsfrei hindurchlaufen kann.Since winding points or winding heads with winding pins are provided on both sides of the web, these need only execute short axial extension and retraction movements in order to reliably grasp and release the web, because angular axes guaranteeing good winding are already defined by the bilateral detection of only the edge regions of the web . Since the winding pins already have a sufficiently large transverse spacing relative to one another to ensure a trouble-free passage of the material web, they only have to make relatively small spreading movements after extending into their winding position, because there is sufficient loosening of the winding pins before pulling them out in the completely wound roll if these are returned to their unspread position. In the device according to the invention, the winding pins only need to perform a spreading movement which, after returning to their unspread position, is sufficient to loosen the winding pins in the finished roll winding and therefore only needs to be very small, while in the known device the winding pins travel over a larger radial distance, than it would be necessary for loosening per se to have to be spread in order to create such large distances between the winding pins that the path between them can pass without problems.

Aus CH-A-487 781 ist eine nur intermittierend arbeitende Wickelvorrichtung mit nur einer gestellfesten Wickelstelle bekannt, die aus zwei gegenüberliegenden Paaren von mit einem Drehantrieb versehenen Wickelstiften bestehen, die zum Erfassen einer abschnittweise kernlos aufzuwickelnden Materialbahn aufeinander zu vorschiebbar sind, so daß die jeweils beiden Wickelstifte die Bahn zwischen sich einfassen, und die zur Freigabe eines Wickels über die Seitenkante der Bahn hinaus zurückziehbar sind. In ihrer ausgefahrenen Stellung werden die Wickelstifte durch einen Spreizkeil gespreizt und durch Zurückziehen des Spreizkeils federn sie in ihre ungespreizte Stellung zurück. Die bekannte Vorrichtung dient zum intermittierendenAutwickeln von Bafnabschnitten, die von einer endlosen Bahn abgetrennt werden, bei der die in einer gemeinsamen Ebene aufeinander zu und voneinander weg verschiebbaren Wickelstifte bei ihrem Vorschieben eine zangenartige Öffnungsbewegung zum Erfassen der Bahn und bei ihrem Zurückziehen eine entsprechende Schließbewegung ausführen, so daß der Reibschluß der Wikkelstifte mit dem Wickel verringert wird und sich der gebildete Wickel leicht von diesem abstreifen läßt. Der noch mit der Bahn verbundene Wickel fällt dann in eine Auffangwanne. Zum Abtrennen der Bahn von dem Wickel sind beidseits der Wickelstelle die Bahn festklemmende Klemmbakkenpaare und zwischen diesen ein Trennmesser vorgesehen. Vor dem Durchtrennen wird die zwischen den Backen festgeklemmte Bahn durch eine Spanneinrichtung gestrafft, so daß die entsprechend ausgerichteten und gespreizter Wickelstifte zum Erfassen der Bahn wieder aufeinander zu vorgeschoben werden können. Die bekannte Wickelvorrichtung ermögkicht keine Aufwickung und Trennung einer kontinuierlich zugeführten Bahn. Die Bahn muß nicht nur zum Abtrennen der jeweils gebildeten Wickel mit vorherbestimmter Abschnittlänge angehalten werden, sie muß auch beidseits der Wickelstelle durch besondere Klemmeinrichtungen festgeklemmt und durch eine besondere Schneideinrichtung durchtrennt werden, was nicht nur die Wickelleistung beschränkt, sondern auch einen zusätzlichen konstruktiven Aufwand bedingt.From CH-A-487 781 an only intermittently working winding device is known with only one winding station fixed to the frame, which consist of two opposite pairs of winding pins provided with a rotary drive, which can be pushed towards each other to capture a material web to be wound in sections without a core, so that the respective the two winding pins enclose the web between them, and which can be withdrawn beyond the side edge of the web to release a winding. In their extended position, the winding pins are spread by an expanding wedge and by pulling back the expanding wedge, they spring back into their non-expanded position. The known device is used for the intermittent unwinding of baffles which are separated from an endless web, in which the winding pins, which are displaceable towards and away from one another in a common plane, perform a pincer-like opening movement for grasping the web and a corresponding closing movement when they are retracted, so that the frictional engagement of the winding pins with the winding is reduced and the winding formed can be easily stripped from it. The wrap still connected to the web then falls into a collecting trough. In order to separate the web from the winding, pairs of clamping jaws which clamp the web are provided on both sides of the winding point and a separating knife between them. Before cutting, the web clamped between the jaws is tightened by a tensioning device, so that the appropriately aligned and spread winding pins for gripping the web can be pushed towards each other again. The known winding device does not allow winding and separation of a continuously fed web. The web must not only be stopped to separate the respectively formed roll with a predetermined section length, it must also be clamped on both sides of the winding point by special clamping devices and cut through a special cutting device, which not only limits the winding performance, but also requires additional design effort.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Wickelstellen Tragplatten mit in diesen drehbar gelagerten und mit den Drehantrieben versehenen Buchsen aufweisen, daß die Wickelstifte aus Winkelhebeln bestehen, die scherenartig auf einer gemeinsamen Querachse eines Tragstücks schwenkbar gelagert sind, das drehbar am vorderen Ende einer mit der Mittelachse der Buchse fluchtenden Kolbenstange einer gestellfest gehaltenen Druckmittelkolbenzylindereinheit gelagert ist, daß die längeren, die Wickelstifte bildenden scherenartigen Schenkel der Buchse längsverschieblich geführt und durch Federn in Richtung auf ihre ungespreizte Stellung beaufschlagt sind und daß sich die etwa rechtwinkelig abgewinkelten kürzeren Schenkel der Winkelhebel auf gegenüberliegenden Seiten der nach außen weisenden Stirnflächen der Buchsen gegen Ende der Vorschubbewegung derart abstützen, daß deren längeren, die Buchsen durchsetzenden Schenkel gespreizt werden.In a further embodiment of the invention it is provided that the winding stations have support plates with bushes rotatably mounted in them and provided with the rotary drives, that the winding pins consist of angle levers which are pivotally mounted on a common transverse axis of a support piece which is rotatable at the front end of a support arm with the central axis of the bushing aligned piston rod of a pressure-medium piston-cylinder unit which is fixed to the frame is mounted such that the longer, the scissor-like legs of the bushing forming the winding pins are guided in a longitudinally displaceable manner and by springs in the direction of their unspread Position are applied and that the approximately right-angled shorter legs of the angle lever on opposite sides of the outward-facing end faces of the bushes against the end of the feed movement so that their longer legs penetrating the bushes are spread.

Um sicherzustellen, daß sich die Wickelstifte beim Vorschieben aus ihrer zurückgezogenen Stellung in einer Lage befinden, in der sie die zu der anderen Wickelstelle laufende Bahn störungsfrei gabelartig zwischen sich einzufassen vermögen, ist in weiterer Ausgestaltung der Erfindung vorgesehen, daß das Tragstück mit einem radialen Arm versehen ist, der beim Einfahren der Kolbenstange mit einer gestellfesten Steuerkurve zusammenwirkt und dadurch die längeren Schenkel derart dreht, daß deren zwischen deren Schwenkebene liegenden Mittelebenen in der Ebene der von diesen beim Ausfahren einzufassendenBahn liegt.In order to ensure that the winding pins are in a position when they are pushed forward from their retracted position in which they are able to enclose the web running to the other winding point in a fork-like manner between them, in a further embodiment of the invention it is provided that the support piece has a radial arm is provided, which cooperates with a control cam fixed to the frame when the piston rod is retracted and thereby rotates the longer legs in such a way that their central planes lying between their pivoting planes lie in the plane of the web to be grasped by them when they extend.

Zweckmäßigerweise ist das Tragstück mit zwei um 180° zueinander versetzten radialen Armen versehen, die mit einer gestellfest gehaltenen, die Kolbenstange konzentrisch einfassenden Steuerkurve zusammenwirken, die ausgehend von einem Scheitelpunkt zwei symmetrische, etwa elliptisch gekrümmte, nach außen verlaufende Äste besitzt.The support piece is expediently provided with two radial arms offset from one another by 180 °, which cooperate with a control cam which is fixed to the frame and concentrically surrounds the piston rod and which, starting from an apex, has two symmetrical, approximately elliptically curved, outwardly extending branches.

Nach einer erfinderischen Weiterbildung sind die Wickelstellen dadurch revolverartig in dem Maschinengestell angeordnet, daß die beiden Tragplatten kreisscheibenförmig ausgebildet sind und mindestens eine mit einer Außenverzahnung versehen ist, die mit einem Antriebsritzel kämmt, und daß die Tragplatten um 180° versetzt mit den Wickelstellen versehen sind. Ein Wechsel der Wickelstellen läßt sich durch Drehen oder Hin- und Herdrehen der Tragplatten bewerkstelligen.According to an inventive development, the winding stations are arranged in a turret-like manner in the machine frame in that the two support plates are designed in the form of circular disks and at least one is provided with external teeth which mesh with a drive pinion, and in that the support plates are provided with the winding stations offset by 180 °. The winding stations can be changed by rotating the backing plates or turning them back and forth.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß in den Tragplatten eine zentrale, mit einem Drehantrieb versehene Welle gelagert ist, die über Kupplungs-Brems-Kombinationen wechselweise mit zwei zu dieser parallelen, in den Tragplatten gelagerten Zwischenwellen in Antriebsverbindung steht, von denen über Zahnräder, Riemen oder Ketten der Drehantrieb der Buchsen der Wickelstellen abgeleitet ist.In a further embodiment of the invention it is provided that a central shaft, which is provided with a rotary drive, is mounted in the support plates, which is in drive connection via clutch-brake combinations alternately with two parallel intermediate shafts mounted in the support plates, one of which via gear wheels , Belts or chains the rotary drive of the bushings of the winding stations is derived.

Um die Wickelvorrichtung auf unterschiedliche Formate einstellen zu können, sind die Führungsringe auf Traversen des Gestells querverschieblich geführt und zur gegensinnigen Verstellung relativ zueinander mit Spindelmuttern versehen, in die eine gestellfeste Spindel eingeschraubt ist, wobei in an den Tragplatten drehbar gelagerten Antriebselementen die zentrale Welle und die Zwischenwellen, die als Vielkeilwellen ausgebildet sind, axial verschieblich geführt sind.In order to be able to adjust the winding device to different formats, the guide rings are guided on the trusses of the frame so as to be displaceable and, for opposite adjustment, are provided with spindle nuts into which a spindle fixed to the frame is screwed, the central shaft and the drive elements being rotatably mounted on the support plates Intermediate shafts, which are designed as multi-spline shafts, are guided so as to be axially displaceable.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

  • Fig. 1 eine Seitenansicht der Wickelvorrichtung,
  • Fig. 2 eine Draufsicht auf die Wickelvorrichtung nach Fig. 1,
  • Fig. 3 einen Schnitt durch einen Wickelkopf einer Wickelstelle in vergrößerter Darstellung und
  • Fig. 4 einen Schnitt durch die Kolbenstange und das Tragstück längs der Linie IV-IV in Fig. 3.
An embodiment of the invention is explained below with reference to the drawing. In this shows
  • 1 is a side view of the winding device,
  • 2 is a plan view of the winding device of FIG. 1,
  • Fig. 3 shows a section through a winding head of a winding station in an enlarged view and
  • 4 shows a section through the piston rod and the support piece along the line IV-IV in FIG. 3.

Die Seitenwände 1, 2 des Maschinengestells sind durch eine Quertraverse 3 miteinander verbunden, die eine Führung für auf dieser querverschieblich gelagerte Tragringe 4, 5 bildet. Die Tragringe 4, 5 sind zusätzlich mit Spindelmuttern 6, 7 versehen, in die zur gegensinnigen Verstellung der Tragringe 4, 5 mit gegenläufigen Gewinden die Spindel 8 eingeschraubt ist. Die Spindel 8 ist in den Gestellwänden 1, 2 drehbar aber axial unverschieblich gelagert und mit einem Handrad 9 versehen.The side walls 1, 2 of the machine frame are connected to one another by a cross-beam 3, which forms a guide for support rings 4, 5 which are mounted on the cross-slide. The support rings 4, 5 are additionally provided with spindle nuts 6, 7, into which the spindle 8 is screwed for opposing adjustment of the support rings 4, 5 with opposite threads. The spindle 8 is rotatably but axially immovably mounted in the frame walls 1, 2 and provided with a handwheel 9.

Die Tragringe 4, 5 sind mit miteinander fluchtenden kreisringförmigen inneren Rändern 10, 11 versehen, auf denen mit Umfangsnuten versehene Rollen 12 laufen, die an den Außenseiten von kreisförmigen Scheiben 13, 14 gelagert sind, deren äußeren Ränder mit Verzahnungen 15 versehen sind. Die scheibenförmigen Platten 13 sind um 180° versetzt mit einander gegenüberliegenden Wickelköpfen 16, 17 und 18, 19 versehen. Die Wickelköpfe sind identisch ausgebildet, so daß nachstehend anhand der Fig. 3 nur die Ausgestaltung des Wickelkopfes 16 erläutert wird.The support rings 4, 5 are provided with mutually aligned annular inner edges 10, 11, on which rollers 12 provided with circumferential grooves run, which are mounted on the outer sides of circular disks 13, 14, the outer edges of which are provided with teeth 15. The disc-shaped plates 13 are offset by 180 ° with mutually opposite winding heads 16, 17 and 18, 19. The winding heads are of identical design, so that only the configuration of the winding head 16 is explained below with reference to FIG. 3.

In einer Bohrung der scheibenförmigen Platte 13 ist der mit einem Flansch versehene Lagerring 20 gehaltert. In diesem Lagerring ist über zwei Wälzlager die Buchse 21 drehbar gelagert. Auf die Buchse 21 ist auf der Außenseite der scheibenförmigen Platte 13 die Zahnriemenscheibe 22 aufgekeilt. Die Buchse 21 dient der Führung der in dieser axial verschieblich angeordneten scherenartigen Wickelstifte 23, 24.The bearing ring 20 provided with a flange is held in a bore in the disk-shaped plate 13. In this bearing ring, the bushing 21 is rotatably supported by two roller bearings. The toothed belt pulley 22 is wedged onto the bushing 21 on the outside of the disk-shaped plate 13. The bushing 21 serves to guide the scissor-like winding pins 23, 24 arranged axially displaceably therein.

Die Wickelstifte 23, 24 sind durch die längeren Schenkel von Winkelhebeln gebildet, die um die gemeinsame Achse 25 in einem endseitig gegabelten Tragstück Z6 um kleine Schwenkwinkel schwenkbar gelagert sind. Im Bereich der Lagerbohrungen sind mit den die Wickelstifte 23, 24 bildenden Schenkeln kürzere Schenkel 27, 28 verbunden, die endseitig Rollen 29, 30 tragen, über die sich diese auf der äußeren Seitenfläche 31 der verzahnten Riemenscheibe 22 abstützen.The winding pins 23, 24 are formed by the longer legs of angle levers, which are pivoted about the common axis 25 in a forked end piece Z6 by small swivel angles. In the area of the bearing bores, shorter legs 27, 28 are connected to the legs forming the winding pins 23, 24, which carry rollers 29, 30 at the ends, by means of which they are supported on the outer side surface 31 of the toothed pulley 22.

Das Tragstück 26 ist durch das Wälzlager 33 in einer axialen Bohrung 34 der Kolbenstange 35 drehbar gelagert.The support piece 26 is rotatably supported by the roller bearing 33 in an axial bore 34 of the piston rod 35.

Die zugehörigen Pneumatikzylinder 36 sind in nicht dargestellter Weise jeweils fest mit den scheibenförmigen Platten 13, 14 verbunden. Hierzu weisen die Pneumatikzylinder 36 an ihren äußeren Enden Flanschplatten auf, die durch zu den Pneumatikzylindern parallele Stehbolzen mit den scheibenförmigen Platten 13, 14 verbunden sind.The associated pneumatic cylinders 36 are each firmly connected to the disk-shaped plates 13, 14 in a manner not shown. For this purpose, the pneumatic cylinders 36 have flange plates at their outer ends, which are connected to the disk-shaped plates 13, 14 by means of stud bolts parallel to the pneumatic cylinders.

Durch Ein- und Ausfahren der Kolbenstange 35 werden die Wickelstifte 23, 24 über die Vorderseite der Buchse 21 hinausgeschoben und in deren Bereich zurückgezogen. Da das Tragstück 26 in der Kolbenstange 35 drehbar gelagert ist, kann sich dieses mit der Buchse 21 drehen.By retracting and extending the piston rod 35, the winding pins 23, 24 are pushed out over the front of the bushing 21 and withdrawn into the area thereof. Since the support piece 26 is rotatably mounted in the piston rod 35, this can rotate with the socket 21.

Auf jeden der scherenartig gelagerten Wickelstifte 23, 24 stützt sich ein Druckstück 38, 39 ab. Die Druckstücke 38, 39 sind von den Druckfedern 40, 41 beaufschlagt, die zwischen diesen und den mit der Buchse 21 verbundenen Widerlagern 42, 43 eingespannt sind. Die federbelasteten Druckstücke 38, 39 trachten, die Wickelstifte 23, 24 in ihre relativ zueinander eingeschwenkte Stellung zu verschwenken. Wird durch die Kolbenstange 35 das Tragstück 26 in Richtung der Buchse 21 verschoben, stoßen am Ende dieser Vorschubbewegung die kürzeren mit den Wickelstiften 23, 24 verbundenen Schenkel 27, 28 über die Rollen 29, 30 auf die äußere Seitenfläche 31 der verzahnten Riemenscheibe 22, so daß die Spreizstifte 23, 24 durch weiteren Vorschub des Tragstücks 26 in ihre aus Fig. 3 ersichtliche gespreizte Stellung verschwenkt werden.A pressure piece 38, 39 is supported on each of the scissor-type winding pins 23, 24. The pressure pieces 38, 39 are acted upon by the compression springs 40, 41, which are clamped between them and the abutments 42, 43 connected to the bushing 21. The spring-loaded pressure pieces 38, 39 seek to pivot the winding pins 23, 24 into their position pivoted in relation to one another. If the support member 26 is displaced in the direction of the bushing 21 by the piston rod 35, at the end of this feed movement the shorter legs 27, 28 connected to the winding pins 23, 24 meet the outer side surface 31 of the toothed pulley 22 via the rollers 29, 30 that the spreading pins 23, 24 are pivoted into their spread position shown in FIG. 3 by further advancement of the support piece 26.

In der Halte- und Führungsplatte für die Druckstücke 38,39 sind Führungsschlitze für die Wickelstifte 23, 24 vorgesehen, die diese quer zu ihren Schwenkebenen in einem so großen Abstand voneinander halten, daß in deren ausgefahrenen Stellung die abschnittweise aufzuwickelnde Bahn 46 störungsfrei zwischen diesen hindurchlaufen kann.In the holding and guide plate for the pressure pieces 38, 39, guide slots are provided for the winding pins 23, 24, which hold them transversely to their pivoting planes at such a distance from one another that in their extended position, the web 46 to be wound up in sections runs smoothly between them can.

Das am vorderen Ende zur Lagerung der Wikkelstifte 23, 24 gegabelte Tragstück 26 weist um 180° versetzte, radial abstehende Arme 50, 51 auf, deren Endbereiche mit Führungskurven 52, 53 zusammenwirken, die an der dem Wickelkopf 6 zugewandten Stirnseite einer die Kolbenstange 35 konzentrisch einfassenden Hülse 54 vorgesehen sind. Wie aus Fig. 4 ersichtlich ist, besteht die Führungskurve aus zwei von einem oberen Scheitelpunkt 55 ausgehenden Ästen 52, 53, die symmetrisch zu dem Scheitelpunkt 55 angeordnet sind und einen etwa elliptischen Verlauf aufweisen. Stößt beim Zurückziehen der Kolbenstange 35 einer der radialen Arme 50, 51 auf einen der Äste 52, 53 der Führungskurve, gleitet dieser unter Drehung des Tragstücks 26 so lange auf diesem Ast ab, bis auch der gegenüberliegende Arm 50 oder 51 auf den gegenüberliegenden Ast 52, 53 der Führungskurve zur Anlage kommt. In dieser Lage ist eineweitere Rückzugsbewegung blockiert und die Wickelstifte 23, 24 sind derart zu der von diesen einzufassenden Materialbahn ausgerichtet, daß sie diese bei ihrem erneuten Vorschieben zwischen sich einfassen.The fork 26 at the front end for supporting the winding pins 23, 24 has radially protruding arms 50, 51 which are offset by 180 ° and whose end regions cooperate with guide curves 52, 53 which are concentric on the end face of the piston rod 35 on the end face 6 facing the winding head 6 enclosing sleeve 54 are provided. As can be seen from FIG. 4, the guide curve consists of two branches 52, 53 starting from an upper vertex 55, which are arranged symmetrically to the vertex 55 and have an approximately elliptical course. If one of the radial arms 50, 51 strikes one of the branches 52, 53 of the guide curve when the piston rod 35 is pulled back, the latter slides on this branch while rotating the support member 26 until the opposite arm 50 or 51 also hits the opposite branch 52 , 53 the guide curve comes to rest. In this position, a further retraction movement is blocked and the winding pins 23, 24 are aligned with the material web to be gripped by them in such a way that they grip them between them when they are pushed forward again.

Zum Antrieb der Wickelköpfe 16 bis 19 ist an die Gestellwand 2 der Motor 60 angeflanscht. Die Abtriebswelle des Motors 60 steht über einen Zahnriementrieb 61 mit einer zentralen Vielkeilwelle 62 in Antriebsverbindung. Die Vielkeilwelle 62 durchsetzt Naben 63, 64 von Kupplungs-Brems-Kombinationen 65, 66, die wechselweise die verzahnten Riemenscheiben 67, 68 an die Vielkeilwelle 62 ankuppeln. Parallel zu der zentralen Vielkeilwelle 62 sind Vielkeilzwischenwellen 70, 71 vorgesehen, die in den scheibenförmigen Platten 13, 14 drehbar gelagerte Naben 72 bis 75 durchsetzen, auf denen verzahnte Riemenscheiben befestigt sind, die in der aus Fig. Z ersichtlichen Form über endlose Zahnriemen die Wickelköpfe 16 bis 19 antreiben.The motor 60 is flanged to the frame wall 2 to drive the winding heads 16 to 19. The output shaft of the motor 60 is connected to a central splined shaft 62 via a toothed belt drive 61. The splined shaft 62 passes through hubs 63, 64 of clutch-brake combinations 65, 66, which alternately couple the toothed pulleys 67, 68 to the splined shaft 62. Parallel to the central spline shaft 62, spline intermediate shafts 70, 71 are provided, which pass through rotatably mounted hubs 72 to 75 in the disk-shaped plates 13, 14, on which toothed belt pulleys are fastened, which in the form shown in FIG. Z have endless toothed belts for the winding heads Drive 16 to 19.

Den Kupplungs-Brems-Kombinationen 65, 66 wird über Schleifringe 77 der erforderliche Schaltstrom zugeführt.The required switching current is supplied to the clutch-brake combinations 65, 66 via slip rings 77.

Um den Pneumatikzylindern 36 die erforderliche Druckluft zuführen zu können, ist die zentrale Vielkeilwelle 62 in nicht dargestellter Weise mit einer axialen Bohrung und einer Drehdurchführung versehen, von der die Druckluft durch ebenfalls nicht dargestellte Leitungen den Pneumatikzylindern 36 zugeführt wird.In order to be able to supply the required compressed air to the pneumatic cylinders 36, the central splined shaft 62 is provided, in a manner not shown, with an axial bore and a rotary feedthrough, from which the compressed air is fed to the pneumatic cylinders 36 through lines, also not shown.

Der durch die drehbaren und in axialer Rüchtune verstellbaren scheibenförmigen Platten 13, 14 gebildete Revolver mit den Wickelköpfen 16 bis 19 ist über den Getriebemotor 80, dessen Antriebsritzel 81 mit der Verzahnung der Scheibe 13 kämmt, verdrehbar.The turret formed by the rotatable and axially adjustable disc-shaped plates 13, 14 with the winding heads 16 to 19 can be rotated via the geared motor 80, the drive pinion 81 of which meshes with the toothing of the disc 13.

Zur Bildung der Wickelrollen wird die Bahn 46 in der aus Fig. 1 ersichtlichen Weise über Leitrollen 85, 86 zu der beispielsweise aus den Wickelköpfen 16, 17 bestehenden Wickelstelle geleitet. Dabei läuft die zugeführte Bahn 46 zwischen den im Abstand voneinander angeordneten Wickelstiften 23, 24 der Wickelköpfe 18, 19 hindurch. Ist ein genügend langer Abschnitt mit einer vorbestimmten Anzahl beispielsweise von durch Querperforationslinien voneinander getrennten Müllsäcken aufgewickelt worden, werden die Kupplungs-Brems-Kombinationen umgeschaltet, so daß die Wickelköpfe 16, 17 gestoppt werden und die Wickelköpfe 18, 19 der anderen Wickelstelle, zwischen denen die Materialbahn hindurchläuft, anlaufen. Durch diesen Anlauf wird die Bahn längs einer Querperforationslinie, die sich gerade zwischen den beiden Wickelstationen befindet, durchgerissen, so daß die fertig gewickelte Rolle durch Einfahren der Wickelstifte abgestriffen werden kann, während in der anderen Wickelstelle die folgende Rolle gewickelt wird.To form the winding rolls, the web 46 is guided in the manner shown in FIG. 1 via guide rolls 85, 86 to the winding point consisting, for example, of the winding heads 16, 17. The fed web 46 runs between the winding pins 23, 24 of the winding heads 18, 19 which are arranged at a distance from one another. If a sufficiently long section with a predetermined number, for example, of garbage bags separated by transverse perforation lines, has been wound up, the clutch-brake combinations are switched over so that the winding heads 16, 17 are stopped and the winding heads 18, 19 of the other winding point between which the Material web runs through, start up. Through this start, the web is torn along a transverse perforation line, which is currently between the two winding stations, so that the finished wound roll can be stripped off by retracting the winding pins, while the following roll is wound in the other winding station.

Während des Wickelns einer Rolle wird durch Drehen der scheibenförmigen Platten 13, 14 die Lage der Wickelstellen gewechselt, so daß sich dann beispielsweise die Wickelköpfe 16,17 in Fig. 1 in der unteren Stellung befinden. Die während des Wechsels der Wickelstellen eingezogenen Wickelstifte werden sodann wieder ausgefahren, so daß sie die zwischen diesen hindurchlaufende Materialbahn 46 einfassen und sich in ihrer Bereitschaftsstellung für den folgenden Wickelvorgang befinden.During the winding of a roll, the position of the winding positions is changed by rotating the disk-shaped plates 13, 14, so that the winding heads 16, 17 in FIG. 1 are then in the lower position. The winding pins drawn in during the change of the winding positions are then extended again so that they grip the material web 46 passing between them and are in their standby position for the subsequent winding process.

Claims (11)

1. An apparatus for the coreless winding into stock rolls of web sections severable along cross perforation lines, from a continuously fed web (46) of material provided with cross perforations at a distance from each other, with two winding stations (16, 17; 18, 19), arranged in a machine frame and having rotatably mounted freely projecting winding pegs (23, 24) provided with a rotary drive, displaceable into their winding positions, where they are spread out in relation to each other, and retractable into their non-strad- died position, the web (46) being passed during winding on one winding station between the winding pegs of the other winding station, and the winding pegs being displaced, after the web has been switched over to the new winding station, from their retracted position into their position gripping the web between them, characterized in that each winding station (16, 17; 18, 19) has two winding pegs each (23, 24) on both sides of the web (46) which, lying opposite each other, are substantially aligned in pairs with each other and only grip the edge zones of the web (46), and which perform their straddling movements relative to each other in planes lying parallel to each other, and which have in the transverse direction of these planes at least one gap between them required for the trouble-free passing of the material web (46).
2. An apparatus according to Claim 1, characterized in that the winding stations (16, 17; 18, 19) have supporting plates (13, 14) with bushes (21) mounted for rotation therein and provided with the rotational drives (22), in that the winding pegs (23, 24) consist of bent levers pivotably mounted in a scissor-type arrangement on a common transverse pin (25) of a supporting member (26) mounted for rotation at the front end of a piston rod (35) aligned with the median axis of the bush (21) of a hydraulic piston-cylinder unit fixed to the frame, in that the longer scissor-type arms forming the winding pegs (23, 24) are carried in the bush (21) for longitudinal displacement, and are loaded by springs (40, 41) towards their non- straddled position, and in that the shorter arms (27, 28) of the angular levers, bent approximately at right angles, bear towards the end of the advancing movement on opposite sides of the outward front faces of the bushes in such a way that their longer arms passing through the bush (21) and forming the winding pegs (23, 24) are being spread out.
3. An apparatus according to Claim 2, characterized in that pressure plates (38, 39) supported on the longer arms (23, 24), are carried for transverse displacement on the inner front faces of the bushes (21), between which pressure plates and thrust bearings (42, 43) mounted on the bush (21) there are inserted compression springs (40, 41).
4. An apparatus according to Claim 2 or 3, characterized in that the shorter arms (27, 28) are supported on the outer front face (31) of a drive pulley (32) keyed to the bush (21).
5. An apparatus according to one of Claims 2 to 4, characterized in that the shorter arms carry bearing rollers (29, 30) at their free ends.
6. An apparatus according to one of Claims 2 to 5, characterized in that the supporting plate (26) is provided with a radial arm cooperating with a cam fixed to the frame as the piston rod (35) is being moved in, and thereby rotating the longer arms forming the winding pegs in such a way that their median planes lying between the pivoting planes lie in the plane of the web to be gripped by the arms as they are moving out.
7. An apparatus according to one of Claims 2 to 6, characterized in that the supporting plate (26) is provided with two radial arms (50, 51) offset by 180° with respect to each other, which cooperate with a cam that is held on the frame and concentrically surrounds the piston rod (35), which cam has, starting from an apex (55), two symmetrical branches (52, 53) curving approximately elliptically and extending outwards.
8. An apparatus according to one of Claims 2 to 7, characterized in that the two supporting plates (13, 14) have a circular disc design and are provided with at least one external tooth system (15) meshing with a drive pinion (81), and in that the supporting plates (13, 14) are provided with the winding stations (16,17; 18,19) in an arrangement offset at 180°.
9. An apparatus according to Claim 8, characterized in that in the supporting plates (13, 14) there is mounted a central shaft (62) provided with a rotary drive (60, 61) which shaft is placed alternately, via clutch-brake combinations, into a drive connection with two intermediate shafts mounted parallel to the shaft in the supporting plates (13,14), the rotary drive for the bushes (21) of the winding stations being derived from the intermediate shafts via gear wheels, belts or chains.
10. An apparatus according to Claim 8 or 9, characterized in that the disc-shaped supporting plates (13, 14) are provided with at least three lateral wheels (12) provided with peripheral grooves which wheels run in annular guideways of guide rings (4, 5) fixed to the frame.
11. An apparatus according to one of Claims 8 to 10, characterized in that the guide rings (4, 5) are carried on cross members (3) of the frame (1, 2) for transverse displacement and are provided, for their displacement in opposite directions with respect to each other, with spindle nuts (6, 7) into which there is screwed a spindle (8) fixed to the frame, and in that the central shaft (62) and the intermediate shafts (70, 71) designed as multiple splined shafts are carried for axial displacement in the drive elements mounted for rotation in the supporting plates (13, 14).
EP86110647A 1985-09-18 1986-08-01 Device for the coreless winding of web sections severed from a web along cross-perforations Expired - Lifetime EP0216085B1 (en)

Applications Claiming Priority (2)

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DE19853533321 DE3533321A1 (en) 1985-09-18 1985-09-18 DEVICE FOR CORELESS REWINDING OF TAPE SECTIONS TORN OFF A MATERIAL RAIL LONG A CROSS PERFORATION
DE3533321 1985-09-18

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EP0216085A1 EP0216085A1 (en) 1987-04-01
EP0216085B1 true EP0216085B1 (en) 1990-10-17

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EP (1) EP0216085B1 (en)
CA (1) CA1281697C (en)
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DK162515C (en) 1992-03-30
US4790491A (en) 1988-12-13
DK446286A (en) 1987-03-19
EP0216085A1 (en) 1987-04-01
DK446286D0 (en) 1986-09-17
CA1281697C (en) 1991-03-19
ES2001961A6 (en) 1991-03-16
DE3533321C2 (en) 1988-07-07
DE3533321A1 (en) 1987-03-26

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