EP0557725B1 - Apparatus for winding flat flexible material - Google Patents

Apparatus for winding flat flexible material Download PDF

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Publication number
EP0557725B1
EP0557725B1 EP93101042A EP93101042A EP0557725B1 EP 0557725 B1 EP0557725 B1 EP 0557725B1 EP 93101042 A EP93101042 A EP 93101042A EP 93101042 A EP93101042 A EP 93101042A EP 0557725 B1 EP0557725 B1 EP 0557725B1
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EP
European Patent Office
Prior art keywords
winding
winding core
webs
conveying
axles
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
EP93101042A
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German (de)
French (fr)
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EP0557725A1 (en
Inventor
Louis Hulmann
Albert Jost
Peter Baumgartner
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VR Systems AG
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Von Roll Holding AG
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Publication date
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Publication of EP0557725A1 publication Critical patent/EP0557725A1/en
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    • 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
    • B65H18/04—Interior-supporting

Definitions

  • the invention relates to a device for winding flexible flat material according to the preamble of claim 1.
  • Devices of this type are used, for example, to wind up packaging material for volume reduction before disposal thereof, in particular packaging of paper rolls, as are found in the printing industry.
  • the winding core is designed as a drivable cylinder which is rotatably mounted on one side.
  • the packaging material is placed in a continuous axial slot and the winding core is rotated so that the material is wound onto it. It is then manually removed in the axial direction and disposed of. Under certain circumstances, the material wrap can lie very tightly around the winding core, making it difficult to pull off.
  • a known generic device which is used to wind up a label-carrying carrier tape, can be seen from EP-A-0 305 738.
  • the winding core comprises a sleeve which is plugged onto a fixed inner core and has a plurality of fingers parallel to its axis.
  • the sleeve can go to the end facing away from the anchoring of the core of the inner core are displaced so that the fingers resting on the same in the basic position protrude freely beyond the inner core and yield radially inward due to their elasticity, so that a winding lying on them can be pulled off relatively easily in the axial direction. After the winding has been removed, the sleeve is pushed back into its basic position.
  • Such a device is not suitable for all areas of application.
  • a large, tightly tightened wrap presses the sleeve firmly against the inner core, which makes it very difficult, if not impossible, to move it.
  • the winding core is also approximately twice as long, so that a large amount of space is required, especially where relatively long rolls have to be processed.
  • the sleeve must first be pushed back into the basic position before the device is ready for use again.
  • the invention is intended to remedy this.
  • the invention as characterized in the claims, creates a winding device in which the pulling off of the material roll is always possible regardless of the strength of the same.
  • the device is also space-saving, since the dimensions of the winding core do not change when the winding is removed and, since it is immediately ready for use again after the winding has been removed, can be used to a very high degree.
  • it offers the best prerequisites for a complete automation of the application and removal of coils, which for reasons of speeding up the process, saving labor and also calculating the time required, especially in the In view of the usually largely automated environment is desirable.
  • a feed 1 which consists approximately of pairs of driven rollers 2a, b and a guide roller 3
  • material 4 to be wound is fed to a winding core 5 and pushed through a continuous axial slot 6 therein.
  • the movement of the conveyor rollers 2a, b is controlled such that the front edge of the material web approximately reaches the end of the slot 6 and then the winding core 5 is set in rotation and the material 4 is wound thereon.
  • the device according to the invention comprises an anchor 8, which is screwed to a double-T support 9 and the winding core 5, which is rotatably mounted about a winding axis 10.
  • This consists of a base part 11, which essentially forms a fork with extensions 12a, b, c, d and U profiles 13a, b adjoining these.
  • the U-profiles 13a, b are facing away from each other, ie open to the outside and spaced apart, so that they and the pairs of extensions 12a, b and 12c, d, to each of which a U-profile 13a or 13b connects, between them , Form slot 6 extending substantially in the direction of the winding axis 10.
  • the section of the base part 11 closest to the anchoring 8 is cylindrical.
  • a drive belt 14 runs over it.
  • a winding shaft 15 connects to the base part 11 and is rotatably mounted in the anchoring 8 by means of two ball bearings 16a, b.
  • An inductive sensor 17 for detecting a tab 18 anchored to the base part 11 of the winding core 5 is anchored on the double-T support 9.
  • the U-profiles 13a, b each carry a plurality of axles 21 connecting their side webs 20, on each of which there are two conveyor rollers 19 arranged next to one another, each of which projects over said side webs 20 with part of their circumferential surface.
  • the pairs of conveyor rollers 19 mounted in the U-profiles 13a, b each form two groups lying in a line, of which the ones attached in the U-profile 13a are connected by conveyor belts 22a, b, which each run over all conveyor rollers 19 of a group.
  • the winding core is shown interrupted, so that only two conveyor rollers 19 are shown for each group, however, depending on the length of the winding core 5 and the properties of the material 4, there may be significantly more.
  • the conveyor rollers 19 and the conveyor belts 22a, b are cyclical, i. H. along closed tracks are movable conveyors that are stationary or guided. They form surface parts of the winding core 5, which can be moved away from its anchoring 8 in the direction of the winding axis, while parts of the conveying means facing away from the surface of the winding core 5 run back.
  • conveyor rollers 19 are otherwise simply rotatably mounted, the conveyor rollers of the two groups initially connected to the anchoring 8 can be driven by means of conveyor belts 22a, b.
  • a winding shaft 15 is carried out coaxially through the winding shaft 15, which drives a shaft 25 via a bevel gear 24, on which sits a gearwheel 26 which, via a gearwheel 27, has a third, on the axis 21 of said pair of, on an intermediate shaft 28
  • Conveyor rollers 19 fixed gear 29 drives.
  • the front edge of a material web consisting of flexible flat material 4 is introduced into the slot 6 of the winding core 5 through a feed device.
  • the inductive sensor 17 monitors by detecting the tab 18 that the winding core 5 is in a position in which the slot 6 lies in the feed direction.
  • the winding core 5 is set in rotation via the drive belt 14, so that it is wound onto the same to form a material winding indicated in FIG. 3.
  • the conveyor shaft 23 is uncoupled from the drive unit (not shown) assigned to it during the winding process.
  • the end of the material web 4 is determined by the sensor 7, whereupon the winding process is ended and the winding core 5 is blocked.
  • the material roll then lies more or less firmly on the outer surface of the winding core 5.
  • With high rigidity of the material 4 its inner surface is approximately cylindrical, as indicated in Fig. 4, with lower rigidity it approaches a prism, the base of which approximates the convex envelope of the cross section of the winding core 5, or more precisely, its projection in the direction corresponds to the winding axis 10.
  • the bearing surface i.e. H. that part of the outer surface of the winding core 5 which the material roll touches is largely formed by conveyor rollers 19 and in particular conveyor belts 22a, b. If the material roll also rests on immovable parts of the winding core 5, this does not usually bother, it is crucial that the frictional engagement with the driven conveyor belts 22a, b predominates. Of course, it depends on the properties of the material, in particular the stiffness and elasticity already mentioned, how many conveyor rollers and belts are necessary and how they must be distributed. The arrangement shown is sufficient for a relatively stiff and inelastic material such as paper.
  • the conveyor shaft 23 is now coupled to a drive unit and set in rotation. Via the bevel gear 24 and the gear wheels 26, 27, 29, the axis 21, on which the conveyor rollers 19 closest to the anchoring 4 are seated, is set in rotation, so that the conveyor belts 22a, b fit into the position shown in FIG. 3 Move in the direction indicated by an arrow. Due to the frictional engagement with the conveyor belts 22a, b, on which it rests, the material roll is now conveyed out in the direction of the winding axis 10, the non-driven conveyor rollers 19 running freely.
  • the material roll can then be picked up by a conveying device in which it is compressed between rollers, for example for further volume reduction, and which transports it to a collecting container.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)

Abstract

A web of material, for example the packaging of a paper roll, can be wound by introducing its leading edge into an axial slit of a winding core (5) which is mounted in a stationary anchor (8) so as to be rotatable about a winding shaft (10) and by subsequent rotation thereof to form a reel of material. In order to facilitate the removal of the reel of material, the winding core (5) has a plurality of conveyor rollers (19) which are partly mounted in U-profiles (13a) and form groups lying in a line. Conveyor belts (22a,b) run via two of these groups. The conveyor rollers (19) and conveyor belts (22a,b) form the predominant part of the support surface of the reel of material on the winding core (5). The conveyor rollers, lying nearest to the anchor (8), of the last-mentioned groups can be driven via a conveyor shaft (23), a conical gearing (24) and gearwheels (26, 27, 29) and can set the conveyor belts (22a,b) in motion in such a manner that the reel of material connected to them in a frictionally locking manner is conveyed away towards the winding shaft (10), whereas the non-driven conveyor rollers on which said reel also lies co-rotate. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Aufwickeln von biegsamem flächigem Material gemäss dem Oberbegriff des Anspruchs 1.The invention relates to a device for winding flexible flat material according to the preamble of claim 1.

Derartige Vorrichtungen werden beispielsweise zum Aufwickeln von Verpackungsmaterial zur Volumenverkleinerung vor der Entsorgung desselben verwendet, insbesondere von Verpackungen von Papierrollen, wie sie in der Druckindustrie anfallen.Devices of this type are used, for example, to wind up packaging material for volume reduction before disposal thereof, in particular packaging of paper rolls, as are found in the printing industry.

Eine diesem Zweck dienende Vorrichtung ist etwa der Broschüre "Fördertechnik für Papierrollen in der Druckindustrie", Ausgabe 1990 der Von Roll AG, S. 8zu entnehmen. Der Wickelkern ist als einseitig drehbar gelagerter, antreibbarer Zylinder ausgebildet. Das Verpackungsmaterial wird in einen durchgehenden axialen Schlitz eingelegt und der Wickelkern in Drehung versetzt, sodass das Material auf ihn aufgewickelt wird. Anschliessend wird er manuell in axialer Richtung abgezogen und entsorgt. Unter Umständen kann sich der Materialwickel sehr fest um den Wickelkern legen, sodass das Abziehen Mühe bereitet.A device serving this purpose can be found, for example, in the brochure "Conveying technology for paper rolls in the printing industry", 1990 edition of Von Roll AG, p. 8. The winding core is designed as a drivable cylinder which is rotatably mounted on one side. The packaging material is placed in a continuous axial slot and the winding core is rotated so that the material is wound onto it. It is then manually removed in the axial direction and disposed of. Under certain circumstances, the material wrap can lie very tightly around the winding core, making it difficult to pull off.

Eine bekannte gattungsgemässe Vorrichtung, die dem Aufwickeln eines Etiketten tragenden Trägerbandes dient, ist aus der EP-A-0 305 738 ersichtlich. Der Wickelkern umfasst eine auf einen festen Innenkern aufgesteckte Hülse, die mehrere zu seiner Achse parallele Finger aufweist. Die Hülse kann zum der Verankerung des Kerns abgewandten Ende des Innenkerns hin verschoben werden, so dass die in der Grundstellung auf demselben aufliegenden Finger frei über den Innenkern hinausragen und aufgrund ihrer Elastizität radial nach innen nachgeben, sodass ein auf ihnen aufliegender Wickel verhältnismässig leicht in axialer Richtung abgezogen werden kann. Nach Abziehen des Wickels wird die Hülse wieder in ihre Grundstellung zurückgeschoben.A known generic device, which is used to wind up a label-carrying carrier tape, can be seen from EP-A-0 305 738. The winding core comprises a sleeve which is plugged onto a fixed inner core and has a plurality of fingers parallel to its axis. The sleeve can go to the end facing away from the anchoring of the core of the inner core are displaced so that the fingers resting on the same in the basic position protrude freely beyond the inner core and yield radially inward due to their elasticity, so that a winding lying on them can be pulled off relatively easily in the axial direction. After the winding has been removed, the sleeve is pushed back into its basic position.

Eine derartige Vorrichtung ist nicht für alle Einsatzbereiche geeignet. So drückt ein grosser, fest angezogener Wickel die Hülse fest an den Innenkern, was ein Verschieben derselben sehr erschweren, wenn nicht verunmöglichen dürfte. Durch das Verschieben der Hülse vor dem Abziehen des Wickels verlängert sich ausserdem der Wickelkern etwa auf das Doppelte, so dass, vor allem wo Wickel verhältnismässig grosser Länge bearbeitet werden müssen, ein hoher Platzbedarf entsteht. Und schliesslich muss die Hülse erst in die Grundstellung zurückgeschoben werden, bevor die Vorrichtung wieder einsatzbereit ist.Such a device is not suitable for all areas of application. A large, tightly tightened wrap presses the sleeve firmly against the inner core, which makes it very difficult, if not impossible, to move it. By moving the sleeve before pulling out the roll, the winding core is also approximately twice as long, so that a large amount of space is required, especially where relatively long rolls have to be processed. And finally, the sleeve must first be pushed back into the basic position before the device is ready for use again.

Hier soll durch die Erfindung Abhilfe geschaffen werden. Durch die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, wird eine Aufwickelvorrichtung geschaffen, bei der das Abziehen des Materialwickels unabhängig von der Festigkeit desselben immer problemlos möglich ist. Die Vorrichtung ist ausserdem platzsparend, da der Wickelkern sich beim Abziehen des Wickels in seinen Abmessungen nicht verändert und kann, da sie nach dem Abziehen des Wickels sofort wieder einsatzbereit ist, sehr hoch ausgelastet werden. Ausserdem bietet sie beste Voraussetzungen für eine vollständige Automatisierung des Anlegens und Abziehens von Wickeln, was aus Gründen der Beschleunigung des Ablaufs, der Arbeitsersparnis und auch der Kalkulierbarkeit des Zeitaufwands insbesondere im Hinblick auf das gewöhnlich weitgehend automatisierte Umfeld erwünscht ist.The invention is intended to remedy this. The invention, as characterized in the claims, creates a winding device in which the pulling off of the material roll is always possible regardless of the strength of the same. The device is also space-saving, since the dimensions of the winding core do not change when the winding is removed and, since it is immediately ready for use again after the winding has been removed, can be used to a very high degree. In addition, it offers the best prerequisites for a complete automation of the application and removal of coils, which for reasons of speeding up the process, saving labor and also calculating the time required, especially in the In view of the usually largely automated environment is desirable.

Im folgenden wird die Erfindung anhand von Zeichnungen, welche ein Ausführungsbeispiel darstellen, näher erläutert. Es zeigen

Fig. 1
in schematischer Darstellung eine Aufwickelvorrichtung mit Zuführung,
Fig. 2
eine teilweise geschnittene Seitenansicht einer erfindungsgemässen Vorrichtung,
Fig. 3
eine Draufsicht auf eine erfindungsgemässe Vorrichtung und
Fig. 4
eine Frontansicht der erfindungsgemässen Vorrichtung gemäss IV-IV in Fig. 3.
The invention is explained in more detail below with reference to drawings which represent an exemplary embodiment. Show it
Fig. 1
in a schematic representation of a winding device with feed,
Fig. 2
2 shows a partially sectioned side view of a device according to the invention,
Fig. 3
a plan view of an inventive device and
Fig. 4
3 shows a front view of the device according to the invention according to IV-IV in FIG. 3.

In Fig. 1 ist die prinzipielle Funktionsweise gattungsgemässer Aufwickelvorrichtungen schematisch dargestellt. Ueber eine Zuführung 1, welche etwa aus Paaren von angetriebenen Rollen 2a,b und einer Führungsrolle 3 besteht, wird aufzuwickelndes Material 4 einem Wickelkern 5 zugeführt und durch einen durchgehenden axialen Schlitz 6 in demselben gestossen. Dabei wird, ausgehend vom Signal eines Sensors 7, die Bewegung der Förderrollen 2a,b so gesteuert, dass die Vorderkante der Materialbahn etwa das Ende des Schlitzes 6 erreicht und dann der Wickelkern 5 in Rotation versetzt und das Material 4 auf denselben gewickelt.In Fig. 1, the principle of operation of generic winding devices is shown schematically. Via a feed 1, which consists approximately of pairs of driven rollers 2a, b and a guide roller 3, material 4 to be wound is fed to a winding core 5 and pushed through a continuous axial slot 6 therein. Based on the signal from a sensor 7, the movement of the conveyor rollers 2a, b is controlled such that the front edge of the material web approximately reaches the end of the slot 6 and then the winding core 5 is set in rotation and the material 4 is wound thereon.

Im einzelnen umfasst die erfindungsgemässe Vorrichtung eine Verankerung 8, welche mit einem Doppel-T-Träger 9 verschraubt ist und den um eine Wickelachse 10 drehbar gelagerten Wickelkern 5. Dieser besteht aus einem Basisteil 11, welcher im wesentlichen eine Gabel bildet mit Fortsätzen 12a,b,c,d sowie an diese anschliessenden U-Profilen 13a,b. Die U-Profile 13a,b sind voneinander abgewandt, d. h. nach aussen offen und beabstandet, sodass sie und die Paare von Fortsätzen 12a,b und 12c,d, an welche jeweils ein U-Profil 13a bzw. 13b anschliesst, zwischen sich den durchgehenden, sich wesentlich in Richtung der Wickelachse 10 erstreckenden Schlitz 6 bilden.In detail, the device according to the invention comprises an anchor 8, which is screwed to a double-T support 9 and the winding core 5, which is rotatably mounted about a winding axis 10. This consists of a base part 11, which essentially forms a fork with extensions 12a, b, c, d and U profiles 13a, b adjoining these. The U-profiles 13a, b are facing away from each other, ie open to the outside and spaced apart, so that they and the pairs of extensions 12a, b and 12c, d, to each of which a U-profile 13a or 13b connects, between them , Form slot 6 extending substantially in the direction of the winding axis 10.

Der der Verankerung 8 am nächsten liegende Abschnitt des Basisteils 11 ist zylindrisch ausgebildet. Ueber ihn läuft ein Treibriemen 14. An den Basisteil 11 schliesst eine Wickelwelle 15 an, welche in der Verankerung 8 mittels zweier Kugellager 16a,b drehbar gelagert ist.The section of the base part 11 closest to the anchoring 8 is cylindrical. A drive belt 14 runs over it. A winding shaft 15 connects to the base part 11 and is rotatably mounted in the anchoring 8 by means of two ball bearings 16a, b.

Am Doppel-T-Träger 9 ist ein induktiver Sensor 17 zur Detektion einer am Basisteil 11 des Wickelkerns 5 verankerten Lasche 18 verankert.An inductive sensor 17 for detecting a tab 18 anchored to the base part 11 of the winding core 5 is anchored on the double-T support 9.

Am Wickelkern sind mehrere Förderrollen 19 befestigt. Insbesondere tragen die U-Profile 13a,b jeweils mehrere ihre Seitenstege 20 verbindende Achsen 21, an deren jeder zwei nebeneinander angeordnete Förderrollen 19 sitzen, welche besagte Seitenstege 20 jeweils mit einem Teil ihrer Umfangsfläche überragen. Die in den U-Profilen 13a,b montierten Paare von Förderrollen 19 bilden jeweils zwei in einer Linie liegende Gruppen, von denen die im U-Profil 13a angebrachten durch Förderriemen 22a,b verbunden sind, welche jeweils über alle Förderrollen 19 einer Gruppe laufen. In Fig. 2, 3 ist der Wickelkern unterbrochen dargestellt, sodass jeweils pro Gruppe nur zwei Förderrollen 19 dargestellt sind, es können jedoch, je nach Länge des Wickelkerns 5 und den Eigenschaften des Materials 4 auch wesentlich mehr sein. Aussen an den Seitenstegen 20 sind weitere, kleinere Förderrollen 19 angebracht, deren Achsen gegenüber denen der in den U-Profilen 13a,b montierten Förderrollen 19 geneigt sind.Several conveyor rollers 19 are attached to the winding core. In particular, the U-profiles 13a, b each carry a plurality of axles 21 connecting their side webs 20, on each of which there are two conveyor rollers 19 arranged next to one another, each of which projects over said side webs 20 with part of their circumferential surface. The pairs of conveyor rollers 19 mounted in the U-profiles 13a, b each form two groups lying in a line, of which the ones attached in the U-profile 13a are connected by conveyor belts 22a, b, which each run over all conveyor rollers 19 of a group. 2, 3, the winding core is shown interrupted, so that only two conveyor rollers 19 are shown for each group, however, depending on the length of the winding core 5 and the properties of the material 4, there may be significantly more. On the outside of the side webs 20, further, smaller conveyor rollers 19 are attached Axes are inclined relative to those of the conveyor rollers 19 mounted in the U-profiles 13a, b.

Die Förderrollen 19 und die Förderriemen 22a,b stellen zyklisch, d. h. längs geschlossener Bahnen bewegliche Fördermittel dar, die stationär gelagert bzw. geführt sind. Sie bilden Oberflächenteile des Wickelkerns 5, die in Richtung der Wickelachse von seiner Verankerung 8 weg bewegbar sind, während von der Oberfläche des Wickelkerns 5 abgewandte Teile der Fördermittel zurücklaufen.The conveyor rollers 19 and the conveyor belts 22a, b are cyclical, i. H. along closed tracks are movable conveyors that are stationary or guided. They form surface parts of the winding core 5, which can be moved away from its anchoring 8 in the direction of the winding axis, while parts of the conveying means facing away from the surface of the winding core 5 run back.

Während die Förderrollen 19 sonst einfach drehbar gelagert sind, sind die der Verankerung 8 zunächst liegenden Förderrollen der beiden mittels Förderriemen 22a,b verbundenen Gruppen antreibbar. Und zwar ist durch die Wickelwelle 15 koaxial eine Förderwelle 23 durchgeführt, welche über ein Kegelgetriebe 24 eine Welle 25 antreibt, auf der ein Zahnrad 26 sitzt, das über ein Zahnrad 27 auf einer Zwischenwelle 28 ein drittes, auf der Achse 21 des besagten Paares von Förderrollen 19 befestigtes Zahnrad 29 treibt.While the conveyor rollers 19 are otherwise simply rotatably mounted, the conveyor rollers of the two groups initially connected to the anchoring 8 can be driven by means of conveyor belts 22a, b. Namely, a winding shaft 15 is carried out coaxially through the winding shaft 15, which drives a shaft 25 via a bevel gear 24, on which sits a gearwheel 26 which, via a gearwheel 27, has a third, on the axis 21 of said pair of, on an intermediate shaft 28 Conveyor rollers 19 fixed gear 29 drives.

Im folgenden wird nun die Funktion der beschriebenen Vorrichtung erläutert.The function of the device described will now be explained below.

Wie bereits im Zusammenhang mit Fig. 1 geschildert, wird die Vorderkante einer aus biegsamem flächigem Material 4 bestehenden Materialbahn durch eine Zuführeinrichtung in den Schlitz 6 des Wickelkerns 5 eingeführt. Dabei überwacht der induktive Sensor 17 durch Detektion der Lasche 18, dass sich der Wickelkern 5 in einer Lage befindet, in welcher der Schlitz 6 in der Zuführrichtung liegt. Sobald die Materialbahn in den Schlitz 6 eingeführt ist, wird der Wickelkern 5 über den Treibriemen 14 in Drehung versetzt, sodass sie auf denselben zu einem in Fig. 3 angedeuteten Materialwickel aufgewickelt wird. Die Förderwelle 23 ist während des Wickelvorgangs von der ihr zugeordneten Antriebseinheit (nicht dargestellt) abgekuppelt.As already described in connection with FIG. 1, the front edge of a material web consisting of flexible flat material 4 is introduced into the slot 6 of the winding core 5 through a feed device. The inductive sensor 17 monitors by detecting the tab 18 that the winding core 5 is in a position in which the slot 6 lies in the feed direction. As soon as the material web has been introduced into the slot 6, the winding core 5 is set in rotation via the drive belt 14, so that it is wound onto the same to form a material winding indicated in FIG. 3. The conveyor shaft 23 is uncoupled from the drive unit (not shown) assigned to it during the winding process.

Durch den Sensor 7 wird das Ende der Materialbahn 4 festgestellt, worauf der Wickelvorgang beendet und der Wickelkern 5 blockiert wird. Der Materialwickel liegt dann mehr oder minder fest an der Aussenfläche des Wickelkerns 5 an. Bei hoher Steifigkeit des Materials 4 ist seine Innenfläche annähernd zylindrisch, wie in Fig. 4 angedeutet, bei geringerer Steifigkeit nähert sie sich einem Prisma an, dessen Grundfläche annähernd der konvexen Hülle des Querschnitts des Wickelkerns 5, oder, genauer gesagt, seiner Projektion in Richtung der Wickelachse 10 entspricht.The end of the material web 4 is determined by the sensor 7, whereupon the winding process is ended and the winding core 5 is blocked. The material roll then lies more or less firmly on the outer surface of the winding core 5. With high rigidity of the material 4, its inner surface is approximately cylindrical, as indicated in Fig. 4, with lower rigidity it approaches a prism, the base of which approximates the convex envelope of the cross section of the winding core 5, or more precisely, its projection in the direction corresponds to the winding axis 10.

In jedem Fall wird die Auflagefläche, d. h. jener Teil der Aussenfläche des Wickelkerns 5, den der Materialwickel berührt, zu einem guten Teil durch Förderrollen 19 und insbesondere Förderriemen 22a,b gebildet. Wenn der Materialwickel auch auf unbeweglichen Teilen des Wickelkerns 5 aufliegt, so stört das gewöhnlich nicht, entscheidend ist, dass der Reibschluss mit den angetriebenen Förderriemen 22a,b überwiegt. Es hängt natürlich von den Eigenschaften des Materials, insbesondere der schon erwähnten Steifigkeit und der Elastizität ab, wieviele Förderrollen und -riemen nötig sind und wie sie verteilt sein müssen. Bei einem verhältnismässig steifen und unelastischen Material wie Papier genügt die gezeigte Anordnung.In any case, the bearing surface, i.e. H. that part of the outer surface of the winding core 5 which the material roll touches is largely formed by conveyor rollers 19 and in particular conveyor belts 22a, b. If the material roll also rests on immovable parts of the winding core 5, this does not usually bother, it is crucial that the frictional engagement with the driven conveyor belts 22a, b predominates. Of course, it depends on the properties of the material, in particular the stiffness and elasticity already mentioned, how many conveyor rollers and belts are necessary and how they must be distributed. The arrangement shown is sufficient for a relatively stiff and inelastic material such as paper.

Zum Ausfördern des Materialwickels wird nun die Förderwelle 23 an eine Antriebseinheit angekuppelt und in Drehung versetzt. Ueber das Kegelgetriebe 24 und die Zahnräder 26, 27, 29 wird die Achse 21, auf der die der Verankerung 4 nächstliegenden Förderrollen 19 sitzen, in Rotation versetzt, sodass die Förderriemen 22a,b sich in die in Fig. 3 durch einen Pfeil angedeutete Richtung bewegen. Durch den Reibschluss mit den Förderriemen 22a,b, auf denen er aufliegt, wird nun der Materialwickel in Richtung der Wickelachse 10 ausgefördert, wobei die nicht angetriebenen Förderrollen 19 frei mitlaufen.To convey the material roll out, the conveyor shaft 23 is now coupled to a drive unit and set in rotation. Via the bevel gear 24 and the gear wheels 26, 27, 29, the axis 21, on which the conveyor rollers 19 closest to the anchoring 4 are seated, is set in rotation, so that the conveyor belts 22a, b fit into the position shown in FIG. 3 Move in the direction indicated by an arrow. Due to the frictional engagement with the conveyor belts 22a, b, on which it rests, the material roll is now conveyed out in the direction of the winding axis 10, the non-driven conveyor rollers 19 running freely.

Der Materialwickel kann dann von einer Fördereinrichtung aufgenommen werden, in der er etwa zur weiteren Volumenverkleinerung zwischen Rollen zusammengedrückt wird und die ihn zu einem Sammelbehälter transportiert.The material roll can then be picked up by a conveying device in which it is compressed between rollers, for example for further volume reduction, and which transports it to a collecting container.

Claims (10)

  1. Apparatus for winding flexible flat material (4) onto a winding core (5), mounted in an anchorage (8) on one side so as to be rotatable about a winding axis (10), to form a material coil, having a supporting surface for the material coil on the winding core (5), which supporting surface is formed at least partially from surface parts which can be moved away from the anchorage (8) in the direction of the winding axis (10), characterized in that the surface parts can be moved within the supporting surface in that they belong to cyclically movable conveying means which are mounted or guided on the winding core (5) in a stationary manner.
  2. Apparatus according to Claim 1, characterized in that it has a plurality of conveying rollers (19) which can be rotated about axles (21) perpendicular to the winding axis (10).
  3. Apparatus according to Claim 1 or 2, characterized in that the conveying means consist at least partially of conveying rollers (19) which, in each case with a part of their circumferential surface, form a part of the supporting surface of the material coil.
  4. Apparatus according to Claim 2 or 3, characterized in that the conveying means consist at least partially of closed conveying belts (22a, 22b) which are each guided over a group of conveying rollers (19) which are successive in the direction of the winding axis (10).
  5. Apparatus according to one of Claims 2 to 4, characterized in that at least one conveying roller (19) can be driven.
  6. Apparatus according to Claims 4 and 5, characterized in that at least one driveable conveying roller (19) belongs to a group connected by a closed belt (22a; 22b).
  7. Apparatus according to one of Claims 1 to 6, characterized in that the winding core (5) has a continuous slot (6) extending parallel to the winding axis (10) for receiving the material (4) to be wound.
  8. Apparatus according to one of Claims 2 to 6, characterized in that the winding core (5) comprises two spaced-apart pairs, leaving a slot (6) between them, of webs directed parallel to the winding axis (10), and parallel axles (21) spaced apart in the longitudinal direction of the webs are mounted in each case between the webs of one pair, on which axles in each case at least one conveying roller (19) is mounted in such a way that on the outer side of the winding core (5) it projects with a part of its circumferential surface beyond the webs.
  9. Apparatus according to Claim 8, characterized in that the winding core (5) comprises two U-profiles (13a, 13b) spaced apart remote from one another, the lateral webs (20) of one U-profile (13a; 13b) in each case forming at least part of one of the pairs of webs directed parallel to the winding axis (10).
  10. Apparatus according to Claim 8 or 9, characterized in that further conveying rollers (19) are attached to the webs towards the outer side of the winding core (5), the axles of which further conveying rollers are inclined relative to the axles (21) of the conveying rollers (19) mounted between the webs.
EP93101042A 1992-02-28 1993-01-23 Apparatus for winding flat flexible material Expired - Lifetime EP0557725B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH63392 1992-02-28
CH633/92 1992-02-28

Publications (2)

Publication Number Publication Date
EP0557725A1 EP0557725A1 (en) 1993-09-01
EP0557725B1 true EP0557725B1 (en) 1996-09-25

Family

ID=4191565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93101042A Expired - Lifetime EP0557725B1 (en) 1992-02-28 1993-01-23 Apparatus for winding flat flexible material

Country Status (5)

Country Link
EP (1) EP0557725B1 (en)
AT (1) ATE143338T1 (en)
DE (1) DE59303912D1 (en)
DK (1) DK0557725T3 (en)
ES (1) ES2092144T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19515436C1 (en) * 1995-04-27 1996-10-24 Klaus Horstmann Mobile transporter for picking up and putting down heavy rolls, with chassis and vertical mast

Also Published As

Publication number Publication date
DE59303912D1 (en) 1996-10-31
EP0557725A1 (en) 1993-09-01
DK0557725T3 (en) 1996-11-25
ES2092144T3 (en) 1996-11-16
ATE143338T1 (en) 1996-10-15

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