EP0281790B1 - Device for continuously winding or unwinding flat products on or from a roll - Google Patents

Device for continuously winding or unwinding flat products on or from a roll Download PDF

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Publication number
EP0281790B1
EP0281790B1 EP88102139A EP88102139A EP0281790B1 EP 0281790 B1 EP0281790 B1 EP 0281790B1 EP 88102139 A EP88102139 A EP 88102139A EP 88102139 A EP88102139 A EP 88102139A EP 0281790 B1 EP0281790 B1 EP 0281790B1
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EP
European Patent Office
Prior art keywords
winding
conveyor
reel
belt conveyor
hub
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
EP88102139A
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German (de)
French (fr)
Other versions
EP0281790A1 (en
Inventor
Walter Reist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferag AG
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Ferag AG
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Filing date
Publication date
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Priority to AT88102139T priority Critical patent/ATE59178T1/en
Publication of EP0281790A1 publication Critical patent/EP0281790A1/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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B65H16/103—Arrangements for effecting positive rotation of web roll in which power is applied to web-roll spindle
    • 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
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/006—Winding articles into rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/28—Feeding articles stored in rolled or folded bands
    • 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
    • B65H2301/419—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means
    • B65H2301/4192—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means for handling articles of limited length in shingled formation
    • B65H2301/41922—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means for handling articles of limited length in shingled formation and wound together with single belt like members
    • 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
    • B65H2701/19—Specific article or web
    • B65H2701/1932—Signatures, folded printed matter, newspapers or parts thereof and books

Definitions

  • the present invention relates to a device according to the preamble of claim 1.
  • a device is known for example from CH-PS 559 691.
  • a further supply spool and guide rollers for a second winding belt are arranged above the conveyor belts arranged in a stationary manner and above the flat structures and below these the winding belt feeding or taking away the winding belt.
  • the two winding belts which are practically as wide as the flat structures, form a conveyor gap in which the flat structures are clamped and, together with the winding belts, fed to the driven winding core, and wound up together with the winding belts.
  • the length of the rocker-type conveyor belt arrangement is to be dimensioned to a comparatively significant value, with the result that the space requirement of the devices with a bearing point arranged at a constant height for the winding core is relatively large and direct drive of the conveyor belt arrangement is practically inevitable.
  • the device 10 shown in the drawing has a base 11 on which, on the one hand, two upright guide columns 12, 13 are anchored and, on the other hand, a conveyor belt arrangement 14, only shown schematically, is mounted.
  • the deflection roller 15 of the conveyor belt arrangement 14 connects to a conveyor 16, of which only the end or the beginning (depending on whether winding or unwinding) is shown in FIGS. 1 and 3.
  • a carriage or carriage 18 is mounted, which is displaceably guided by rollers 17 and from which the drive members for an essentially hollow cylindrical winding core 19 protrude.
  • These drive members comprise two drive wheels 20, 21 which drive the winding core 19 from the inside in a frictional engagement, and a freely rotatably mounted tensioning roller 22 which holds the winding core 19 in contact with the drive wheels 20, 21 EP OS 0161569 described in detail.
  • a differently designed drive for the winding core which does not necessarily have to be hollow cylindrical, can also be provided.
  • a nut piece 23 (FIG. 2) is anchored on the carriage 18 and is penetrated by a threaded spindle 24 parallel to the guide columns 12, 13.
  • the threaded spindle 24 is attached by means of a stationary motor 25, for example on the guide columns 12, 13, which is only indicated schematically drivable, so that the motor 25 of the carriage 18 can be moved and held practically continuously over the entire height of the guide columns 12, 13.
  • a motor 26 flanged to the carriage 18 is coupled to the drive wheel 21, while the drive wheel 20 is positively coupled to the drive wheel 21 via a chain drive 27.
  • the conveyor belt arrangement 14 is arranged in a frame 28, indicated only schematically in FIG. 1, which is pivotally mounted about the axis of the deflection roller 15 and carries a further deflection roller 29 at its end which appears on the right in FIG. 1.
  • the two deflection rollers 15 and 29 are freely rotatably supported and looped around by a pair of comparatively slack conveyor belts 30, 31 (FIG. 2).
  • a further deflecting roller 32 is freely rotatably mounted on the frame 28 in a manner not shown, which has a winding belt 34 pulled off a supply roller 33 or wound onto it and guided over the deflecting roller 29 brings to the height of the upper run of the conveyor belts 30, 31 and runs in the same direction with them.
  • the frame 28 and thus the conveyor belts 30, 31 and also the winding belt 34 are pushed upwards by means of a spring 35, for example a gas spring, so that the comparatively slack conveyor belts 30, 31 are pressed against the circumference of the winding W located on the winding core 19 and wrap it over a comparatively large arc length. If the winding W is driven via the winding core 19 in one or the other direction of rotation, the conveyor belts 30, 31 thus run along and the winding belt 34 is pulled off the supply roll 33 or wound onto it.
  • a spring 35 for example a gas spring
  • the supply roll 33 is positively coupled via a chain drive 36 to a torque-controlled machine 37, which will be returned in particular in connection with FIG. 3.
  • the device is suitable for producing coils of the most varied diameters, and in addition finished coils W, regardless of their diameter, can be raised by means of the threaded spindle 24 to such an extent that they can be pulled through from the side opposite the carriage 18 ( 2 from the right) transport vehicle (for example by a forklift) can be removed from the drive wheels 20, 21 and the tensioning roller 22 and transported to an intermediate storage location.
  • Fig. 1 the bottom and top positions of the winding core 19 can be seen with dash-dotted circles.
  • the direction of rotation of the winding W is indicated by the arrow 38 when winding and the arrow 39 indicates that when it is being unwound.
  • FIG. 3 largely corresponds to FIG. 1, but in this FIG. 3 a block diagram of the electrical circuit is superimposed.
  • the symbol M 1 corresponds to the motor 26, the symbol M 3 to the motor 25 and the symbol M 2 to the torque-controlled machine 37.
  • a transmitter 40 for example a tachometer generator, is coupled to the illustrated deflection roller of the conveyor 16, which generates a “target” signal relating to the speed and the conveying direction of the conveyor 16. This signal reaches a comparator and feed stage 42 via a line 41.
  • a transmitter 43 is also coupled to the deflection roller 32 for the winding tape 34, which generates an “actual” signal with respect to the actual peripheral speed and the direction of rotation of the winding W.
  • This actual signal is fed to the comparator and feed stage 42 via a line 44.
  • the motor 26 (M 1) can be a reversible DC machine or a frequency-controlled pole-changing asynchronous motor.
  • the conveyor belt arrangement 14 is assigned two buttons 46, 47, for example light barriers, which detect the momentary installation of the upper run of the conveyor belts 30, 31. If the button 47 responds, the motor 25 (M 3) of the threaded spindle 24 is switched on via the line 48 in the sense of lifting the carriage 18 (and thus the roll W) and remains switched on (when winding up) until the button 46 appeals. When the roll W is unwound, the buttons 46, 47 swap their roles. The motor 25 (M 3) can, however, also be switched on and off via a switch 49, which is only indicated schematically and bridges the buttons 46, 47. A reversible and pole-changing asynchronous machine has proven to be expedient for the motor 25 (M 3).
  • the motor 25 (M 3) is switched on when a finished roll has to be raised to the highest position for takeover by a transport vehicle (as mentioned) or when an empty roll core 19 has to be lowered so far that it touches the conveyor belt arrangement 14 .
  • the winding tape 34 is kept under as constant a tension as possible when winding the winding W. Therefore, the supply roll 33 is to be braked in accordance with its own diameter so that the winding tape receives the desired tension (and elongation) between the run-off point from the supply roll 33 and the run-up point on the roll W.
  • the braking torque to be exerted on the supply roll 33 is of course dependent on its current diameter. Therefore, the supply roll 33 is assigned a diameter sensor 50 which controls the torque-controlled machine 37 (M 2) via a control line 51 and a control stage 52.
  • This torque-controlled machine 37 (M 2) is expediently a torque-controlled servo DC machine which can be switched both as a motor (drive) and as a generator (brake).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Replacement Of Web Rolls (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Winding Of Webs (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)

Abstract

A driven and vertically adjustable winding core (19) and a supply reel (33) for dispensing or receiving a winding band (34) to be wound on or off with the flat products (Z) are provided as well as a conveyor (16) for supplying or removing the flat products (Z) to be wound on or off. Provided between the conveyor (16) and the winding core (19) is a conveyor belt arrangement (14) which feeds or guides away the flat products (Z) and the winding band (34). In order to reduce the space requirement of the device and to simplify its drive systems while still ensuring satisfactory winding-on or winding-off, the conveyor belt arrangement (14) is designed to rotate freely and partially loops around the winding core (19) or the roll (W) thereon with spring action, the driving elements (20, 21) for the winding core (19) protruding from a vertically guided, displaceable carriage which can be raised and lowered by means of a lifting drive (24, 25) controllable by the moment application of the conveyor belt arrangement (14). <IMAGE>

Description

Die vorliegende Erfindung betrifft eine Einrichtung gemäss dem Oberbegriff des Patentanspruches 1. Eine solche Einrichtung ist beispielsweise aus der CH-PS 559 691 bekannt. Bei dieser Einrichtung sind oberhalb der die Flächengebilde und unter diesen das Wickelband zu- bzw. wegführenden, ortsfest angeordneten Förderbandanordnung eine weitere Vorratsspule und Führungswalzen für ein zweites Wickelband angeordnet. Am Ende der Förderbandanordnung bilden die beiden praktisch ebenso breit wie die Flächengebilde bemessenen Wickelbänder einen Förderspalt, in welchem die Flächengebilde festgeklemmt und zusammen mit den Wickelbändern dem angetriebenen Wickelkern oberschlächtig zugeführt und zusammen mit den Wickelbändern aufgewickelt werden.The present invention relates to a device according to the preamble of claim 1. Such a device is known for example from CH-PS 559 691. In this device, a further supply spool and guide rollers for a second winding belt are arranged above the conveyor belts arranged in a stationary manner and above the flat structures and below these the winding belt feeding or taking away the winding belt. At the end of the conveyor belt arrangement, the two winding belts, which are practically as wide as the flat structures, form a conveyor gap in which the flat structures are clamped and, together with the winding belts, fed to the driven winding core, and wound up together with the winding belts.

Diese Lösung ist nicht nur wegen den zwei erforderlichen Wickelbänder nachteilig, sondern auch deshalb, weil die Länge des zwischen der Förderbandanordnung und dem Wickelkern bzw. dem Wickel vorhandenen, nur durch die beiden Wickelbänder gebildeten Förderspaltes begrenzt ist. Falls die Flächengebilde vergleichsweise schwer sind, besteht die Gefahr, dass das untere Wickelband im Bereich des genannten Förderspaltes infolge der unvermeidlichen Dehnung durchhängt, so dass das obere Wickelband den Kontakt mit den Flächengebilden verliert und diese damit namentlich bei höherer Fördergeschwindigkeit für einen geordneten Auf- bzw. Abwickelvorgang nicht mehr ausreichend geführt sind. Man könnte diesen Nachteil dadurch etwas lindern, dass insbesondere das untere Wickelband unter eine erhebliche Zugspannung gesetzt wird, die dessen Durchhängen vermindert. Dies bedeutet aber, dass beim Aufwickeln der Antrieb des Wickelkernes insbesondere bei grösser werdendem Wickeldurchmesser ein diese Zugspannung überwindendes Drehmoment, d.h. eine erheblich grössere Leistung bei gegebener Drehzahl aufzubringen hat.This solution is disadvantageous not only because of the two winding tapes required, but also because the length of the conveyor gap existing between the conveyor belt arrangement and the winding core or the winding and formed only by the two winding tapes is limited. If the fabrics are comparatively heavy, there is a risk that the lower winding belt will sag in the area of the mentioned conveyor gap as a result of the inevitable expansion, so that the upper winding belt loses contact with the fabrics and thus, in particular, at a higher conveying speed for an orderly opening and closing Unwinding are no longer adequately managed. This disadvantage could be alleviated somewhat in that the lower winding tape in particular is put under considerable tensile stress, which reduces its sagging. However, this means that when the drive of the winding core is wound up, especially when the winding diameter increases, a torque that overcomes this tensile stress, i.e. has to deliver a considerably higher output at a given speed.

Es ist daher als eine Aufgabe der Erfindung anzusehen, eine Einrichtung der eingangs genannten Art derart auszubilden, dass die vorstehend genannten Nachteile weitgehend vermieden werden.It is therefore an object of the invention to design a device of the type mentioned in the introduction in such a way that the disadvantages mentioned above are largely avoided.

Diese Aufgabe wird durch die vorgeschlagene Einrichtung dadurch gelöst, dass sie die im Kennzeichen des Patentanspruches 1 angegebenen Merkmale aufweist.This object is achieved by the proposed device in that it has the features specified in the characterizing part of patent claim 1.

Es ist zwar bei ähnlichen Einrichtungen bekannt, die Förderbandanordnung unterschlächtig an den Wickelkern bzw. an den darauf gebildeten Wickel heranzuführen bzw. von diesem wegzuführen. Bei diesen Einrichtungen ist jedoch die Lagerung des Wickelkernes auf konstanter Höhe angeordnet. Dies hat zur Konsequenz, dass die Förderbandanordnung als verschwenkbare Wippe auszubilden ist, die im Stande ist, den gesamten Durchmesserbereich von Wickelkern bis zu maximalem Wickeldurchmesser in der Art des Tonarmes eines Plattenspielers zu bestreichen, ohne dass die Neigung der Förderbandanordnung solche Werte annähme, die ein Rutschen der in freier Auflage zu- bzw. weggeführten Flächengebilde auf dem Förderband zur Folge hätten. Dementsprechend ist bei diesen vorbekannten Einrichtungen die Länge der wippenartigen Förderbandanordnung auf einen vergleichsweise bedeutenden Wert zu bemessen, mit der Folge, dass der Platzbedarf der Einrichtungen mit auf konstanter Höhe angeordneter Lagerstelle für den Wickelkern relativ gross ist und ein unmittelbarer Antrieb der Förderbandanordnung praktisch unumgänglich ist.With similar devices, it is known to lead the conveyor belt arrangement underneath the winding core or to the winding formed thereon or to lead away from it. In these devices, however, the storage of the winding core is arranged at a constant height. The consequence of this is that the conveyor belt arrangement is to be designed as a pivotable rocker which is able to cover the entire diameter range from the winding core up to the maximum winding diameter in the manner of a tonearm of a turntable, without the inclination of the conveyor belt arrangement assuming values which a Slipping of the sheet material fed in or out in the free circulation would result in the conveyor belt. Accordingly, in these previously known devices, the length of the rocker-type conveyor belt arrangement is to be dimensioned to a comparatively significant value, with the result that the space requirement of the devices with a bearing point arranged at a constant height for the winding core is relatively large and direct drive of the conveyor belt arrangement is practically inevitable.

Dem ist bei der vorgeschlagenen Einrichtung nicht so, denn die Stelle, wo die Flächengebilde dem Wickel zugeführt bzw. vom Wickel weggeführt werden, liegt stets im Bereich des tiefsten Punktes des Wickels, d.h. auf einer praktisch konstanten Höhe. Die Förderbandanordnung ist nicht unmittelbar anzutreiben, weil sie mittelbar durch den Wickelkern bzw. den darauf befindlichen Wickel mitgenommen wird.This is not the case with the proposed device, because the point where the flat structures are fed to the roll or taken away from the roll is always in the region of the lowest point of the roll, i.e. at a practically constant height. The conveyor belt arrangement is not to be driven directly because it is indirectly carried along by the winding core or the winding located thereon.

Merkmale bevorzugter Ausführungsformen sind in den abhängigen Ansprüchen umschrieben.Features of preferred embodiments are described in the dependent claims.

Weitere Vorteile der vorgeschlagenen Einrichtung ergeben sich aus der anschliessenden, Beschreibung eines Ausführungsbeispieles anhand der Zeichnung. Es zeigt:

  • Fig. 1 eine schematische Ansicht einer Einrichtung,
  • Fig. 2 eine Ansicht aus Richtung des Pfeiles II der Figur 1, wobei die linke Hälfte etwa einem Schnitt A-A entspricht und
  • Fig. 3 eine schematische Darstellung der Antriebe der Fig. 1 und deren Steuerglieder.
Further advantages of the proposed device result from the subsequent description of an exemplary embodiment with reference to the drawing. It shows:
  • 1 is a schematic view of a device,
  • Fig. 2 is a view from the direction of arrow II of Figure 1, the left half corresponds approximately to a section AA and
  • Fig. 3 is a schematic representation of the drives of Fig. 1 and their control elements.

Die in der Zeichnung dargestellte Einrichtung 10 weist einen Sockel 11 auf, auf dem einerseits zwei aufrechtstehende Führungssäulen 12, 13 verankert sind und andererseits eine nur schematisch dargestellte Förderbandanordnung 14 montiert ist. Die Umlenkrolle 15 der Förderbandanordnung 14 schliesst an einen Förderer 16 an, von dem in den Fig. 1 und 3 nur das Ende bzw. der Anfang (je nachdem ob auf- bzw. abgewickelt wird) dargestellt ist.The device 10 shown in the drawing has a base 11 on which, on the one hand, two upright guide columns 12, 13 are anchored and, on the other hand, a conveyor belt arrangement 14, only shown schematically, is mounted. The deflection roller 15 of the conveyor belt arrangement 14 connects to a conveyor 16, of which only the end or the beginning (depending on whether winding or unwinding) is shown in FIGS. 1 and 3.

Zwischen den beiden Führungssäulen 12, 13 ist, über Rollen 17 verschiebbar geführt ein Schlitten oder Wagen 18 montiert, von dem die Antriebsglieder für einen im wesentlichen hohlzylindrischen Wickelkern 19 wegragen. Diese Antriebsglieder umfassen zwei den Wickelkern 19 von innen im Reibschluss antreibende Antriebsräder 20, 21 sowie eine den Wickelkern 19 in Kontakt mit den Antriebsrädern 20, 21 haltende, frei drehbar gelagerte Spannrolle 22. Diese Antriebsart für einen hohlzylindrischen Wickelkern - wie hier - ist beispielsweise in der EP OS 0161569 eingehend beschrieben. Es versteht sich jedoch, dass auch ein verschieden aufgebauter Antrieb für den Wickelkern, der nicht zwingend hohlzylindrisch zu sein hat, vorgesehen werden kann.Between the two guide columns 12, 13, a carriage or carriage 18 is mounted, which is displaceably guided by rollers 17 and from which the drive members for an essentially hollow cylindrical winding core 19 protrude. These drive members comprise two drive wheels 20, 21 which drive the winding core 19 from the inside in a frictional engagement, and a freely rotatably mounted tensioning roller 22 which holds the winding core 19 in contact with the drive wheels 20, 21 EP OS 0161569 described in detail. However, it goes without saying that a differently designed drive for the winding core, which does not necessarily have to be hollow cylindrical, can also be provided.

Am Wagen 18 ist ein Mutterstück 23 (Fig. 2) verankert, das durch eine zu den Führungssäulen 12, 13 parallele Gewindespindel 24 durchsetzt ist. Die Gewindespindel 24 ist mittels eines ortsfest, beispielsweise an den Führungssäulen 12, 13, montierten, nur schematisch angegebenen Motors 25 antreibbar, so dass sich über den Motor 25 der Wagen 18 über die gesamte Höhe der Führungssäulen 12, 13 praktisch stufenlos verschieben und festhalten lässt.A nut piece 23 (FIG. 2) is anchored on the carriage 18 and is penetrated by a threaded spindle 24 parallel to the guide columns 12, 13. The threaded spindle 24 is attached by means of a stationary motor 25, for example on the guide columns 12, 13, which is only indicated schematically drivable, so that the motor 25 of the carriage 18 can be moved and held practically continuously over the entire height of the guide columns 12, 13.

An das Antriebsrad 21 ist ein am Wagen 18 angeflanschter Motor 26 gekuppelt, während das Antriebsrad 20 über einen Kettentrieb 27 formschlüssig an das Antriebsrad 21 gekoppelt ist.A motor 26 flanged to the carriage 18 is coupled to the drive wheel 21, while the drive wheel 20 is positively coupled to the drive wheel 21 via a chain drive 27.

Die Förderbandanordnung 14 ist in einem nur schematisch in Fig. 1 angedeuteten Rahmen 28 angeordnet, der schwenkbar um die Achse der Umlenkrolle 15 gelagert ist und an seinem in Fig. 1 rechts erscheinenden Ende eine weitere Umlenkrolle 29 trägt. Die beiden Umlenkrollen 15 und 29 sind frei drehbar gelagert und von einem Paar vergleichsweise schlaffen Förderbändern 30, 31 (Fig. 2) umschlungen. Zwischen den Umlenkrollen 15 und 29 sowie zwischen den Förderbändern 30, 31 ist auf nicht näher dargestellte Weise am Rahmen 28 eine weitere Umlenkrolle 32 frei drehbar gelagert, die ein von einer Vorratsrolle 33 abgezogenes bzw. auf diese aufzuspulendes und über die Umlenkrolle 29 geführtes Wickelband 34 auf die Höhe des oberen Trums der Förderbänder 30, 31 bringt und gleichsinnig mit diesen laufen lässt.The conveyor belt arrangement 14 is arranged in a frame 28, indicated only schematically in FIG. 1, which is pivotally mounted about the axis of the deflection roller 15 and carries a further deflection roller 29 at its end which appears on the right in FIG. 1. The two deflection rollers 15 and 29 are freely rotatably supported and looped around by a pair of comparatively slack conveyor belts 30, 31 (FIG. 2). Between the deflecting rollers 15 and 29 and between the conveyor belts 30, 31, a further deflecting roller 32 is freely rotatably mounted on the frame 28 in a manner not shown, which has a winding belt 34 pulled off a supply roller 33 or wound onto it and guided over the deflecting roller 29 brings to the height of the upper run of the conveyor belts 30, 31 and runs in the same direction with them.

Der Rahmen 28 und damit die Förderbänder 30, 31 sowie auch das Wickelband 34 sind mittels einer Feder 35, beispielsweise einer Gasfeder nach oben gedrängt, sodass die vergleichsweise schlaffen Förderbänder 30, 31 gegen den Umfang des auf den Wickelkern 19 befindlichen Wickels W gedrängt werden und diesen über eine vergleichsweise grosse Bogenlänge umschlingen. Wird der Wickel W über den Wickelkern 19 in der einen oder anderen Drehrichtung angetrieben, laufen somit die Förderbänder 30, 31 mit und das Wickelband 34 wird von der Vorratsrolle 33 abgezogen bzw. auf diese aufgespult.The frame 28 and thus the conveyor belts 30, 31 and also the winding belt 34 are pushed upwards by means of a spring 35, for example a gas spring, so that the comparatively slack conveyor belts 30, 31 are pressed against the circumference of the winding W located on the winding core 19 and wrap it over a comparatively large arc length. If the winding W is driven via the winding core 19 in one or the other direction of rotation, the conveyor belts 30, 31 thus run along and the winding belt 34 is pulled off the supply roll 33 or wound onto it.

Zu diesem Zweck ist die Vorratsrolle 33 über einen Kettentrieb 36 formschlüssig an eine momentgesteuerte Maschine 37 gekoppelt, auf die insbesondere in Zusammenhang mit Fig. 3 zurückzukommen sein wird. Aus der vorstehenden Beschreibung ergibt sich, dass die Einrichtung zur Herstellung von Wickeln verschiedenster Durchmesser geeignet ist, wobei ausserdem fertige Wickel W unabhängig von ihrem Durchmesser mittels der Gewindespindel 24 soweit angehoben werden können, dass sie durch ein von der dem Wagen 18 gegenüberliegenden Seite her (in Fig. 2 von rechts her) zufahrenden Transportfahrzeug (beispielsweise durch ein Hubstapler) von den Antriebsrädern 20, 21 und der Spannrolle 22 entnommen und zu einer Zwischenlagerstelle transportiert werden können. In Fig. 1 ist mit strichpunktierten Kreisen die unterste und die oberste Stellung des Wickelkernes 19 zu erkennen. Mit dem Pfeil 38 ist die Drehrichtung des Wickels W beim Aufwickeln angedeutet und mit dem Pfeil 39 jene beim Abwickeln.For this purpose, the supply roll 33 is positively coupled via a chain drive 36 to a torque-controlled machine 37, which will be returned in particular in connection with FIG. 3. It follows from the above description that the device is suitable for producing coils of the most varied diameters, and in addition finished coils W, regardless of their diameter, can be raised by means of the threaded spindle 24 to such an extent that they can be pulled through from the side opposite the carriage 18 ( 2 from the right) transport vehicle (for example by a forklift) can be removed from the drive wheels 20, 21 and the tensioning roller 22 and transported to an intermediate storage location. In Fig. 1 the bottom and top positions of the winding core 19 can be seen with dash-dotted circles. The direction of rotation of the winding W is indicated by the arrow 38 when winding and the arrow 39 indicates that when it is being unwound.

Die Fig. 3 entspricht weitgehend der Fig. 1, jedoch ist in dieser Fig. 3 ein Blockschema der elektrischen Schaltung überlagert. In dieser Figur entspricht dem Motor 26 das Symbol M 1, dem Motor 25 das Symbol M 3 und der momentgesteuerten Maschine 37 das Symbol M 2.FIG. 3 largely corresponds to FIG. 1, but in this FIG. 3 a block diagram of the electrical circuit is superimposed. In this figure, the symbol M 1 corresponds to the motor 26, the symbol M 3 to the motor 25 and the symbol M 2 to the torque-controlled machine 37.

An die dargestellte Umlenkrolle des Förderers 16 ist ein Geber 40, beispielsweise ein Tachogenerator gekoppelt, der ein "Soll"-Signal betreffend die Geschwindigkeit und die Förderrichtung des Förderers 16 erzeugt. Dieses Signal gelangt über eine Leitung 41 an eine Vergleicher- und Speisestufe 42.A transmitter 40, for example a tachometer generator, is coupled to the illustrated deflection roller of the conveyor 16, which generates a “target” signal relating to the speed and the conveying direction of the conveyor 16. This signal reaches a comparator and feed stage 42 via a line 41.

An die Umlenkrolle 32 für das Wickelband 34 ist ebenfalls ein Geber 43 gekoppelt, der ein "Ist"-Signal bezüglich tatsächliche Umfangsgeschwindigkeit und Umlaufrichtung des Wickels W erzeugt. Dieses Ist-Signal ist über eine Leitung 44 der Vergleicher- und Speisestufe 42 zugeleitet. Nach Massgabe des in der Stufe 42 festgestellten Differenzsignals steuert diese über eine Speiseleitung 45 den Motor 26 (M 1) derart, dass die Drehzahl, mit der dieser den Wickelkern 19 antreibt zu einer Umfangsgeschwindigkeit des Wickels W führt, die bezüglich Richtung und Geschwindigkeit jener des Förderers 16 entspricht. Zu diesem Zweck kann der Motor 26 (M 1) eine reversierbare Gleichstrommaschine oder ein frequenzgesteuerter polumschaltbarer Asynchronmotor sein. Der Förderbandanordnung 14 sind zwei Taster 46, 47, beispielsweise Lichtschranken, zugeordnet, die die Momentanlage des oberen Trums der Förderbänder 30, 31 erfassen. Spricht der Taster 47 an, wird der Motor 25 (M 3) der Gewindespindel 24 über die Leitung 48 im Sinne des Anhebens des Wagens 18 (und damit des Wickels W) eingeschaltet und bleibt (beim Aufwickeln) so lange eingeschaltet, bis der Taster 46 anspricht. Beim Abwickeln des Wickels W vertauschen die Taster 46, 47 ihre Rolle. Der Motor 25 (M 3) kann aber auch über einen nur schematisch angedeuteten Schalter 49, der die Taster 46, 47 überbrückt, ein- und ausgeschaltet werden. Als zweckmässig hat sich für den Motor 25 (M 3) eine reversierbare und polumschaltbare Asynchronmaschine erwiesen. Ueber den Schalter 49 wird der Motor 25 (M 3) dann eingeschaltet, wenn ein fertiger Wickel in die höchste Lage zur Uebernahme durch ein Transportfahrzeug (wie erwähnt) anzuheben ist oder wenn ein leerer Wickelkern 19 soweit abzusenken ist, dass er die Förderbandanordnung 14 berührt.A transmitter 43 is also coupled to the deflection roller 32 for the winding tape 34, which generates an “actual” signal with respect to the actual peripheral speed and the direction of rotation of the winding W. This actual signal is fed to the comparator and feed stage 42 via a line 44. In accordance with the difference signal determined in the stage 42, this controls the motor 26 (M 1) via a feed line 45 in such a way that the rotational speed at which it drives the winding core 19 leads to a peripheral speed of the winding W, which with respect to the direction and speed of that of the Conveyor 16 corresponds. For this purpose, the motor 26 (M 1) can be a reversible DC machine or a frequency-controlled pole-changing asynchronous motor. The conveyor belt arrangement 14 is assigned two buttons 46, 47, for example light barriers, which detect the momentary installation of the upper run of the conveyor belts 30, 31. If the button 47 responds, the motor 25 (M 3) of the threaded spindle 24 is switched on via the line 48 in the sense of lifting the carriage 18 (and thus the roll W) and remains switched on (when winding up) until the button 46 appeals. When the roll W is unwound, the buttons 46, 47 swap their roles. The motor 25 (M 3) can, however, also be switched on and off via a switch 49, which is only indicated schematically and bridges the buttons 46, 47. A reversible and pole-changing asynchronous machine has proven to be expedient for the motor 25 (M 3). Via the switch 49, the motor 25 (M 3) is switched on when a finished roll has to be raised to the highest position for takeover by a transport vehicle (as mentioned) or when an empty roll core 19 has to be lowered so far that it touches the conveyor belt arrangement 14 .

Das Wickelband 34 wird beim aufwickeln des Wickels W unter einer möglichst konstanten Spannung gehalten. Daher ist die Vorratsrolle 33 nach Massgabe ihres eigenen Durchmessers so zu bremsen, dass das Wickelband zwischen dem Ablaufpunkt von der Vorratsrolle 33 und dem Auflaufpunkt auf den Wickel W die gewünschte Zugspannung (und Dehnung) erhält. Das auf die Vorratsrolle 33 auszuübende Bremsmoment ist natürlich von ihrem momentanen Durchmesser abhängig. Daher ist der Vorratsrolle 33 ein Durchmesserfühler 50 zugeordnet, der über eine Steuerleitung 51 und eine Steuerstufe 52 die momentgesteuerte Maschine 37 (M 2) ansteuert. Diese momentgesteuerte Maschine 37 (M 2) ist zweckmässig eine sowohl als Motor (Antrieb) als auch als Generator (Bremse) schaltbare momentgesteuerte, ServoGleichstrommaschine.The winding tape 34 is kept under as constant a tension as possible when winding the winding W. Therefore, the supply roll 33 is to be braked in accordance with its own diameter so that the winding tape receives the desired tension (and elongation) between the run-off point from the supply roll 33 and the run-up point on the roll W. The braking torque to be exerted on the supply roll 33 is of course dependent on its current diameter. Therefore, the supply roll 33 is assigned a diameter sensor 50 which controls the torque-controlled machine 37 (M 2) via a control line 51 and a control stage 52. This torque-controlled machine 37 (M 2) is expediently a torque-controlled servo DC machine which can be switched both as a motor (drive) and as a generator (brake).

Beim Abwickeln des Wickels W (Pfeil 39) wird die Drehrichtung der Maschine 37 (M 2) umgekehrt, so dass sie - gegebenenfalls über eine Rutschkupplung (nicht dargestellt) - die Vorratsrolle 33 etwa so antreibt, wie die aufnehmende Spule einer Magnetbandkassette, wodurch das freiwerdende Wickelband 34 wieder satt auf die Vorratsrolle 33 gelangt, während die Flächengebilde Z über die Förderbandanordnung 14 auf den Förderer 16 gelangen.When unwinding the winding W (arrow 39), the direction of rotation of the machine 37 (M 2) is reversed, so that it - possibly via a slip clutch (not shown) - the supply roll 33 approximately like this drives, like the receiving spool of a magnetic tape cassette, whereby the released wrapping tape 34 again gets full on the supply roll 33, while the flat structures Z reach the conveyor 16 via the conveyor belt arrangement 14.

Claims (8)

1. A device continuously winding flat articles (Z), in particular printed items in overlapping array, to or from a reel (W) with a power-driven reel hub (19) adjustable in height, a feed roll (33) for a winding strip (34) wound on or off together with the flat articles (Z), a conveyor (16) to feed or remove the flat articles (Z) to be wound on or off, and a belt conveyor (14) arranged between the conveyor (16) and the reel hub (19) to lead in or away the flat articles (Z) and the winding strip (34), characterized in that the belt conveyor is designed as a freely revolving unit which partially wraps the reel hub (19), or the reel (W) on the hub, in undershot fashion, and under spring action, the drive elements (20, 21) for the reel hub (19) being mounted on a vertically guided travelling slide (18) which can be raised and lowered by means of lifting gear (24, 25) which can be governed by the present position of the belt conveyor (14).
2. A device according to Claim 1, characterized in that the belt conveyor (14) is mounted so as to be capable of pivoting about the return roller (15) nearer to the conveyor (16), and in that position sensors (46, 47), for example light barriers, are operatively associated with the belt conveyor (14) to detect its position and to switch the lifting gear (24, 25) on or off.
3. A device according to Claim 1 or 2, characterized in that the lifting gear has an essentially vertical threaded spindle (24), which can be driven by a motor (25), and which engages in a nut (23) secured to the slide (18).
4. A device according to one of Claims 1-3, characterized in that the drive elements (20, 21) for the reel hub (19) are coupled to a motor (26) flange connected to the slide (18).
5. A device according to Claim 3, characterized in that the motor (25) for the threaded spindle (24) is a reversible, pole-changeable asynchronous motor.
6. A device according to one of Claims 1-5, characterized in that the belt conveyor (14) has two conveyor belts (30, 31) laterally spaced apart, and in that a deflection roller (32) to guide the winding strip (34) to or from the reel is arranged in the region of the strands of the conveyor belts (30, 31) wrapping the reel hub (19) or the reel (W) on the hub and between the said conveyor belts.
7. A device according to Claim 2, characterized in that a switch (49) is provided for switching the lifting gear (24, 25) on and off independently of the actuation of the position sensors (46, 47).
8. A device according to Claim 6, characterized in that the deflection roller (32) for the winding strip (34) is freely rotatable.
EP88102139A 1987-03-06 1988-02-13 Device for continuously winding or unwinding flat products on or from a roll Expired - Lifetime EP0281790B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88102139T ATE59178T1 (en) 1987-03-06 1988-02-13 DEVICE FOR CONTINUOUS ROLLING OR UNWINDING OF FLAT STRUCTURES TO RESPECT. FROM ONE WRAP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH860/87A CH679993A5 (en) 1987-03-06 1987-03-06
CH860/87 1987-03-06

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP90110410A Division-Into EP0391453B1 (en) 1987-03-06 1988-02-13 Device for winding and unwinding printed products transported on a conveyor
EP90110410A Division EP0391453B1 (en) 1987-03-06 1988-02-13 Device for winding and unwinding printed products transported on a conveyor
EP90110410.9 Division-Into 1990-06-01

Publications (2)

Publication Number Publication Date
EP0281790A1 EP0281790A1 (en) 1988-09-14
EP0281790B1 true EP0281790B1 (en) 1990-12-19

Family

ID=4196869

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90110410A Expired - Lifetime EP0391453B1 (en) 1987-03-06 1988-02-13 Device for winding and unwinding printed products transported on a conveyor
EP88102139A Expired - Lifetime EP0281790B1 (en) 1987-03-06 1988-02-13 Device for continuously winding or unwinding flat products on or from a roll

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP90110410A Expired - Lifetime EP0391453B1 (en) 1987-03-06 1988-02-13 Device for winding and unwinding printed products transported on a conveyor

Country Status (10)

Country Link
US (1) US4898336A (en)
EP (2) EP0391453B1 (en)
JP (1) JP2525637B2 (en)
AT (2) ATE83214T1 (en)
AU (1) AU592038B2 (en)
CA (1) CA1306454C (en)
CH (1) CH679993A5 (en)
DE (2) DE3876635D1 (en)
FI (1) FI84335C (en)
SU (1) SU1563588A3 (en)

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Also Published As

Publication number Publication date
EP0281790A1 (en) 1988-09-14
DE3876635D1 (en) 1993-01-21
AU592038B2 (en) 1989-12-21
SU1563588A3 (en) 1990-05-07
FI881030A0 (en) 1988-03-04
DE3861293D1 (en) 1991-01-31
FI84335B (en) 1991-08-15
ATE83214T1 (en) 1992-12-15
CH679993A5 (en) 1992-05-29
ATE59178T1 (en) 1991-01-15
FI84335C (en) 1991-11-25
JP2525637B2 (en) 1996-08-21
EP0391453B1 (en) 1992-12-09
FI881030A (en) 1988-09-07
AU1260588A (en) 1988-09-08
JPS63235249A (en) 1988-09-30
EP0391453A1 (en) 1990-10-10
US4898336A (en) 1990-02-06
CA1306454C (en) 1992-08-18

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