EP0034183B1 - Tying up machine - Google Patents

Tying up machine Download PDF

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Publication number
EP0034183B1
EP0034183B1 EP80901849A EP80901849A EP0034183B1 EP 0034183 B1 EP0034183 B1 EP 0034183B1 EP 80901849 A EP80901849 A EP 80901849A EP 80901849 A EP80901849 A EP 80901849A EP 0034183 B1 EP0034183 B1 EP 0034183B1
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EP
European Patent Office
Prior art keywords
tying
frame
unit
conveyor belt
strapping
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
Application number
EP80901849A
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German (de)
French (fr)
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EP0034183A1 (en
Inventor
Gerd Mosca
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.)
Maschinenfabrik Gerd Mosca AG
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Maschinenfabrik Gerd Mosca AG
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Publication of EP0034183A1 publication Critical patent/EP0034183A1/en
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Publication of EP0034183B1 publication Critical patent/EP0034183B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools

Definitions

  • the invention relates to a strapping machine which is to be arranged between a conveyor belt feeding the packages to be strapped and a conveyor belt removing the strapped packages, having a frame and a strapping unit which has a guiding device which guides the strapping means around a package and a below the conveyor track in the Clasping plane arranged, which connects the loop ends of the strapping means together (z. B. GB-A-1 120 778).
  • Strapping machines of this type are known and they serve, in particular, to strap up newspaper or illustrated stacks. However, other packages can also be tied using plastic tape, cord or wire.
  • the closing device of the strapping unit is a welding device, with the aid of which the ends of the loop which is guided around the package are welded to one another. If cord is used for the tying, then the closing device is a knotting unit which knots the ends of the loop around the package. If wire is used for the strapping, the closing device can be a twisting device which twists or ties together the ends of the wire loop which is guided around the package.
  • the closing device is an embossing device which connects the ends of the steel band loop which is guided around the package by plastic deformation and, if appropriate, with the aid of a sheet metal locking clip.
  • the object of the invention is to provide a strapping machine in which it is not necessary to stop the packages for making the strapping.
  • the strapping unit in the conveying direction of the packages can be pushed back and forth in the frame and driven by a fixed to the frame, effective in both directions drive and that on both sides of the strapping level on the strapping unit at the level of the conveyor conveyor are arranged, which take over the packages to be strapped from the feeding conveyor belt and, after moving the strapping unit in the conveying direction, deliver the strapped package to the outgoing conveyor belt.
  • the packages can be fed to the strapping machine in closer succession.
  • the strapping unit is moved in the conveying direction at approximately the conveying speed of the feeding conveyor belt and the strapping is carried out at the same time.
  • the strapped package is delivered to the conveying conveyor belt and the strapping unit is pushed back to the feeding conveyor belt so that the next package can be picked up and strapped.
  • the strapping unit with the guiding device, the closing device and the conveying means are attached to a slide-like frame which is slidably mounted on a straight guide mounted in the frame.
  • the funding on the sliding strapping unit can be rollers that are provided with a backstop. These rollers can be freely rotating so that the packages are pushed onto the freely rotating rollers of the strapping unit by the feeding carrier tape.
  • the strapping position of the packages on the strapping unit can be determined by a stop. Since the rollers are provided with a backstop, the package is carried along by the strapping unit moving in the conveying direction and strapped in the process. If the strapping unit is suddenly braked at the end of the displacement path, the strapped package lying on the rollers rotating freely in the conveying direction can continue to move in the conveying direction due to its inertia until it is taken over by the conveying conveyor belt.
  • the conveying means of the strapping unit are formed by at least one endless conveyor belt which is aligned with the feeding conveyor belt via an infeed roller mounted on the frame and a first deflecting roller arranged on the strapping unit in front of the strapping level, then down around the closing device of the
  • the strapping unit is guided around at least one deflection roller mounted on the strapping unit, then upwards via a second reversing roller arranged in the flight of the conveyor behind the strapping plane and mounted on the strapping unit and in the flight of the conveyor via a run-off roller mounted on the frame and the empty run of the conveyor belt over at least a return roller mounted on the frame below the strapping unit is returned to the feed roller.
  • FIG. 1 and 2 show, 1 packages 2, z. B. stack of newspapers or the like of a strapping machine 3 and the strapped packages 2 'transported by a conveying belt 4.
  • the strapping machine 3 is composed of a frame 5 and a strapping unit 6 mounted therein in the direction of conveyance of the packages 2 and can be pushed back and forth with a guiding device 8 which guides the strapping means 7 around the package 2 and a visible from FIG. 3, the two ends of the Package 2 wrapping loop of the strapping means connecting fastening device 9.
  • the closing device is a welding unit. If cord or the like is used as the tying means, the closing device is a knotting unit. If wire is used as the strapping means, the closing device is a twisting device which twists the ends of the wire loop together.
  • the guide device 8 and the closing device 9 are located in the strapping plane. On both sides of the strapping level at the level of the conveyor track 6 conveying means 10 are arranged on the displaceable strapping unit, which take over the packages 2 to be strapped from the feeding conveyor belt 1 and, after shifting the strapping unit 6 in the conveying direction, delivers the strapped package 2 to the conveying conveyor belt 3.
  • the conveying means 10 is a conveyor belt 30, which has a first reversing roller 12, a first upper deflecting roller 13, a first lower deflecting roller 14, a second lower deflecting roller 15, a second upper deflecting roller 16, and a second reversing roller 17 via an infeed roller 11 , a run-off roller 18, a first return roller 19 and a second return roller 20 are guided such that the package 2 'located in the strapping position is carried on both sides of the strapping plane by the conveyor belt 30, but a gap 21 remains free between the two reversing rollers 12 and 17, through which the strapping means 7 is moved and brought into contact with the closing device 9.
  • One of the rollers 11 to 20 is designed as a drive roller.
  • Tensioning and guide rollers 22 and 23 can also be provided.
  • the discharge roller 18 is designed as a drive roller.
  • the roller 18 is driven via a chain 24 by an electric motor 25 attached to the frame 5 at a speed which corresponds to the conveying speed of the two conveyor belts 1 and 4.
  • the rollers 12 to 17 are mounted on a frame 26 which carries the strapping unit 6 with the guide device 8 and the closing device 9 and which is slidably mounted on a straight guide mounted in the frame 5, which is composed of two guide rods 27 fastened in the frame 26.
  • a pneumatic or hydraulic piston-cylinder unit 28 arranged parallel to the guide rods 27 in the frame 5, the piston rod 29 of which engages the frame 26, causes the strapping unit 6 to be pushed back and forth.
  • a motor-driven spindle drive can also be used .
  • the drive 28 moves the strapping unit in the conveying direction at a speed which corresponds to the conveying speed of the conveyor belts 1 and 4.
  • the conveyor belt 30 of the strapping unit 6 is also driven at the speed which corresponds to the conveyor speed of the conveyor belts 1 and 4. This has the effect that the packages 2 are taken over by the feeding conveyor belt 1 without delay or acceleration, transported further and strapped in the process, and the strapped package 2 is delivered to the discharging conveyor belt 4. Because during the movement of the strapping unit 6 or the frame 26 in the conveying direction the strapping unit 6 and the conveyor belt 30 have essentially the same speed, the conveyor belt 30 is stationary relative to the strapping unit 6, so that the strapping can be carried out despite the conveyor belt 30 continuing to run.
  • the guide device 8 has a guide frame which frames a rectangular passage 31 for the packages 2. Below the support level of the package 2 there is a trigger and shoot-in device 32 for the strapping means 7 in the strapping unit.
  • the guide frame has a guideway on the inner surface facing the package.
  • the strapping band 7 is shot into this guideway by means of the pull-off and shooting device, so that the beginning of the strapping means 7 is guided around the package 2 and the strapping means 7 forms a loop looping around the package 2, which is drawn in while holding the beginning of the band and then under Voltage is closed.
  • the closing and severing device 9 With the help of the closing and severing device 9, the beginning of the band is connected to the end of the loop, in particular welded, and the loop thus closed is separated from the band supply.
  • the guideway is formed by a driving belt 33, the conveying speed of which is equal to or greater than the speed at which the strapping means 7 is shot.
  • the driving belt 33 is an endless flat belt which is guided over guide rollers 34 and a drive pulley 35.
  • a rotatable ring US Pat. No. 2,339,395 can also be used in a known manner.
  • the reversing rollers 12 and 17 are at a greater distance from the constriction plane than the reversing rollers 12 'and 17' of the side guide belts 30 'because the closing and severing device 9 is accommodated between them.
  • the reversing rollers 12 'and 17' of the side conveyor belts 30 ' are arranged so close together that only a gap remains between them through which the strapping means 7 can be moved.
  • the lateral guide belts 30 ' have the advantage that the package 2 is well supported even in the surrounding position.
  • the middle guide band 30 has the advantage that soft and sagging material, e.g. B. newspapers, well supported in the middle.
  • newspaper stacks can be conveyed at a conveying speed of 0.3 m / sec and at intervals of approximately 0.3 m and thereby tied up.
  • the travel path or displacement path of the strapping unit 6 is approximately 0.3 m. While the displacement speed of the strapping unit 6 in the conveying direction is approximately 0.3 m / sec, the return speed is approximately 0.5 m / sec.
  • the conveyor speeds can be increased considerably and the distances between the packages 2 to be strapped can be shortened accordingly.
  • the packages 2 to be strapped can already be picked up by the conveyor belt 30, 30 'of the strapping machine, while the preceding package 2 is still in the strapping position or is being delivered to the removing conveyor belt 4.
  • the strapping process is triggered by a push button or by a photocell.
  • FIG. 6 shows an exemplary embodiment in which all the conveying means of the strapping unit are rollers 40, which run freely in the conveying direction and which are provided with backstops.
  • the feeding conveyor belt 1 pushes the packages 2 to be strapped into the strapping position.
  • the strapping process and the displacement of the strapping unit 6 in the conveying direction are then triggered by a pushbutton switch or a selenium cell or the like.
  • the strapped package 2 rolls due to the inertia forces on the conveying belt.
  • FIG. 7 shows a guide of the conveyor belt 30, in which fewer deflection rollers are used than in the embodiment according to FIGS. 1, 2 and 4.

Abstract

The machine for tying up parcels is arranged between a supplying carrier belt (1) and an evacuating carrier belt (4), and comprises a frame (5), a transport means (8) and a knotting device (6). The parcel is tied up by a bond (7) knotted underneath the parcel. To tie up the parcel during its travel, the knotting device is movable in the frame (5) and driven reciprocatingly by a motor (28); on both sides of the tying up surface, there is arranged a carrier belt (10) which receives the parcel at its arrival and, after tying up during the displacement of the knotting device, delivers the parcel to the evacuating belt (4).

Description

Die Erfindung bezieht sich auf eine Umschnürungsmaschine, die zwischen einem die zu umschnürenden Packstücke zuführenden Förderband und einem die umschnürten Packstücke abführenden Förderband anzuordnen ist, mit einem Gestell und einem Umschnürungsaggregat, das eine das Umschnürungsmittel um ein Packstück herumführende Führungsvorrichtung und eine unterhalb der Förderbahn in der Umschnürungsebene angeordnete, die Schlaufenenden des Umschnürungsmittels miteinander verbindende Schließvorrichtung aufweist (z. B. GB-A-1 120 778).The invention relates to a strapping machine which is to be arranged between a conveyor belt feeding the packages to be strapped and a conveyor belt removing the strapped packages, having a frame and a strapping unit which has a guiding device which guides the strapping means around a package and a below the conveyor track in the Clasping plane arranged, which connects the loop ends of the strapping means together (z. B. GB-A-1 120 778).

Umschnürungsmaschinen dieser Art sind bekannt und sie dienen dazu, insbesondere Zeitungsstapel oder Illustriertenstapel zu umschnüren. Es können aber auch andere Packstücke mittels Kunststoffband, Kordel oder Draht umschnürt werden. Wird für die Umschnürung Kunststoffband benutzt, dann ist die Schließvorrichtung des Umschnürungsaggregates eine Schweißvorrichtung, mit deren Hilfe die Enden der um das Packstück herumgeführten Schlinge miteinander verschweißt werden. Wird für die Umschnürung Kordel benutzt, dann ist die Schließvorrichtung ein Knoteraggregat, welches die Enden der um das Packstück herumgeführten Schlinge miteinander verknotet. Wird für die Umschnürung Draht benutzt, dann kann die Schließvorrichtung eine Verdrillvorrichtung sein, welche die Enden der um das Packstück herumgeführten Drahtschlaufe miteinander verdrillt bzw. verrödelt. Wird für die Umschnürung ein Stahlband benutzt, dann ist die Schließvorrichtung eine Prägevorrichtung, welche die Enden der um das Packstück herumgeführten Stahlbandschlaufe durch plastische Verformung und gegebenenfalls mit Hilfe einer Verschlußklammer aus Blech miteinander verbindet.Strapping machines of this type are known and they serve, in particular, to strap up newspaper or illustrated stacks. However, other packages can also be tied using plastic tape, cord or wire. If plastic strapping is used for the strapping, the closing device of the strapping unit is a welding device, with the aid of which the ends of the loop which is guided around the package are welded to one another. If cord is used for the tying, then the closing device is a knotting unit which knots the ends of the loop around the package. If wire is used for the strapping, the closing device can be a twisting device which twists or ties together the ends of the wire loop which is guided around the package. If a steel band is used for the strapping, the closing device is an embossing device which connects the ends of the steel band loop which is guided around the package by plastic deformation and, if appropriate, with the aid of a sheet metal locking clip.

Bei den bisherigen Umschnürungsmaschinen mußten die Packstücke, die von einem Förderband zugeführt wurden, angehalten werden, in Umschnürungsposition gebracht werden und nach der Umschnürung wieder auf ein abführendes Förderband geschoben werden. Durch das Abbremsen der Packstücke, das Umschnüren der Packstücke und das Wiederbeschleunigen der Packstücke treten bei der Förderung der Packstücke erhebliche Verzögerungen ein. Die Förderbänder können nur so viele Packstücke pro Zeiteinheit fördern, wie die Umschnürungsmaschine in der Lage ist, pro Zeiteinheit Umschnürungen vorzunehmen. Dadurch müssen die Abstände der Packstücke auf dem zuführenden Förderband relativ groß sein.In the previous strapping machines, the packages that were fed from a conveyor belt had to be stopped, brought into the strapping position and pushed back onto a conveying conveyor belt after the strapping. By braking the packages, tying the packages and re-accelerating the packages, there are considerable delays in the delivery of the packages. The conveyor belts can only convey as many packages per unit of time as the strapping machine is capable of strapping per unit of time. As a result, the distances between the packages on the feeding conveyor belt must be relatively large.

Aufgabe der Erfindung ist es, eine Umschnürungsmaschine zu schaffen, bei der es nicht notwendig ist, die Packstücke zur Vornahme der Umschnürung anzuhalten.The object of the invention is to provide a strapping machine in which it is not necessary to stop the packages for making the strapping.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Umschnürungsaggregat in Förderrichtung der Packstücke vor- und zurückschiebbar im Gestell gelagert und von einem, am Gestell befestigten, in beiden Richtungen wirksamen Antrieb antreibbar ist und daß zu beiden Seiten der Umschnürungsebene am Umschnürungsaggregat in Höhe der Förderbahn Fördermittel angeordnet sind, welche die zu umschnürenden Packstücke vom zuführenden Förderband übernehmen und nach Verschieben des Umschnürungsaggregates in Förderrichtung das umschnürte Packstück an das abführende Förderband abgeben.This object is achieved in that the strapping unit in the conveying direction of the packages can be pushed back and forth in the frame and driven by a fixed to the frame, effective in both directions drive and that on both sides of the strapping level on the strapping unit at the level of the conveyor conveyor are arranged, which take over the packages to be strapped from the feeding conveyor belt and, after moving the strapping unit in the conveying direction, deliver the strapped package to the outgoing conveyor belt.

Bei dieser Umschnürungsmaschine können die Packstücke in dichterer Folge der Umschnürungsmaschine zugeführt werden. Sobald ein Packstück in Umschnürungsposition steht, wird das Umschnürungsaggregat etwa mit der Fördergeschwindigkeit des zuführenden Förderbandes in Förderrichtung bewegt und dabei gleichzeitig die Umschnürung vorgenommen. Am Ende des Verschiebeweges des Urrischnürungsaggregates wird das umschnürte Packstück an das abführende Förderband abgegeben und das Umschnürungsaggregat wird zum zuführenden Förderband zurückgeschoben, damit das nächste Packstück aufgenommen und umschnürt werden kann.With this strapping machine, the packages can be fed to the strapping machine in closer succession. As soon as a package is in the strapping position, the strapping unit is moved in the conveying direction at approximately the conveying speed of the feeding conveyor belt and the strapping is carried out at the same time. At the end of the displacement path of the primary lacing unit, the strapped package is delivered to the conveying conveyor belt and the strapping unit is pushed back to the feeding conveyor belt so that the next package can be picked up and strapped.

Das Umschnürungsaggregat mit der Führungsvorrichtung, der Schließvorrichtung und den Fördermitteln sind an einen schlittenartigen Rahmen angebracht, der auf einer im Gestell angebrachten Geradführung verschiebbar gelagert ist. Die Fördermittel am verschiebbaren Umschnürungsaggregat können Rollen sein, die mit einer Rücklaufsperre versehen sind. Diese Rollen können freidrehend sein, so daß die Packstücke vom zuführenden Trägerband auf die freidrehenden Rollen des Umschnürungsaggregates aufgeschoben werden. Durch einen Anschlag kann die Umschnürungsposition der Packstücke auf dem Umschnürungsaggregat festgelegt werden. Da die Rollen mit einer Rücklaufsperre versehen sind, wird das Packstück von dem sich in Förderrichtung bewegenden Umschnürungsaggregat mitgenommen und dabei umschnürt. Wenn das Umschnürungsaggregat am Ende des Verschiebungsweges plötzlich abgebremst wird, kann das umschnürte und auf den in Förderrichtung freidrehenden Rollen liegende Packstück aufgrund seiner Massenträgheit in Förderrichtung weiterwandern, bis es von dem abführenden Förderband übernommen wird.The strapping unit with the guiding device, the closing device and the conveying means are attached to a slide-like frame which is slidably mounted on a straight guide mounted in the frame. The funding on the sliding strapping unit can be rollers that are provided with a backstop. These rollers can be freely rotating so that the packages are pushed onto the freely rotating rollers of the strapping unit by the feeding carrier tape. The strapping position of the packages on the strapping unit can be determined by a stop. Since the rollers are provided with a backstop, the package is carried along by the strapping unit moving in the conveying direction and strapped in the process. If the strapping unit is suddenly braked at the end of the displacement path, the strapped package lying on the rollers rotating freely in the conveying direction can continue to move in the conveying direction due to its inertia until it is taken over by the conveying conveyor belt.

Es ist aber auch möglich, die Fördermittel des Umschnürungsaggregates anzutreiben. Sofern diese Fördermittel Rollen sind, muß der Antrieb dieser Rollen so gesteuert werden, daß der Antrieb unterbrochen wird, sobald das Packstück in Umschnürungsstellung steht. Sobald das Umschnürungsaggregat sich in Nähe des abführenden Förderbandes befindet, können die Rollen wieder angetrieben werden, so daß das umschnürte Packstück an das abführende Förderband abgegeben werden kann.But it is also possible to drive the funding of the strapping unit. If these funds are roles, the drive of these roles must be controlled so that the drive is interrupted as soon as the package is in the strapping position. As soon as the strapping unit is in the vicinity of the removing conveyor belt, the rollers can be driven again so that the strapped package can be delivered to the removing conveyor belt.

Bei einer besonders vorteilhaften Ausführungsform der Erfindung werden die Fördermittel des Umschnürungsaggregates von mindestens einem endlosen Förderband gebildet, das in der Flucht des zuführenden Förderbandes über eine am Gestell gelagerte Einlaufrolle und eine am Umschnürungsaggregat vor der Umschnürungsebene angeordnete erste Umlenkrolle, dann nach unten um die Schließvorrichtung des Umschnürungsaggregates herum über mindestens eine am Umschnürungsaggregat gelagerte Umlenkrolle, dann nach oben über eine in der Flucht der Förderbahn hinter der Umschnürungsebene angeordnete und am Umschnürungsaggregat gelagerte zweite Umkehrrolle und in der Flucht der Förderbahn über eine am Gestell gelagerte Ablaufrolle geführt und das Leertrum des Förderbandes über mindestens eine am Gestell unterhalb des Umschnürungsaggregates gelagerte Rückführrolle zur Einlaufrolle zurückgeführt ist.In a particularly advantageous embodiment of the invention, the conveying means of the strapping unit are formed by at least one endless conveyor belt which is aligned with the feeding conveyor belt via an infeed roller mounted on the frame and a first deflecting roller arranged on the strapping unit in front of the strapping level, then down around the closing device of the The strapping unit is guided around at least one deflection roller mounted on the strapping unit, then upwards via a second reversing roller arranged in the flight of the conveyor behind the strapping plane and mounted on the strapping unit and in the flight of the conveyor via a run-off roller mounted on the frame and the empty run of the conveyor belt over at least a return roller mounted on the frame below the strapping unit is returned to the feed roller.

Weitere Merkmale der Erfindung ergeben sich aus den Patentansprüchen.Further features of the invention emerge from the patent claims.

In der folgenden Beschreibung wird die Umschnürungsmaschine nach der Erfindung unter Bezugnahme auf in den Zeichnungen dargestellte Ausführungsbeispiele näher erläutert. Die Zeichnungen zeigen in

  • Figur 1 eine Seitenansicht der Umschnürungsmaschine in einer Stellung vor Umschnürung eines Packstücks
  • Figur 2 eine Seitenansicht der Umschnürungsmaschine in einer Stellung nach Umschnürung des Packstücks
  • Figur 3 eine Querschnittansicht
  • Figur 4 eine Längsschnittansicht und
  • Figur 5 eine Draufsicht der Umschnürungsmaschine
  • Figuren 6 und 7 Seitenansichten von abgewandelten Umschnürungsmaschinen nach der Erfindung
In the following description, the strapping machine according to the invention is explained in more detail with reference to exemplary embodiments shown in the drawings. The drawings show in
  • Figure 1 is a side view of the strapping machine in a position before strapping a package
  • Figure 2 is a side view of the strapping machine in a position after strapping the package
  • Figure 3 is a cross-sectional view
  • Figure 4 is a longitudinal sectional view and
  • Figure 5 is a plan view of the strapping machine
  • Figures 6 and 7 side views of modified strapping machines according to the invention

Wie die Figuren 1 und 2 zeigen, werden von einem zuführenden Förderband 1 Packstücke 2, z. B. Zeitungsstapel oder dergleichen einer Umschnürungsmaschine 3 zugeführt und die umschnürten Packstücke 2' von einem abführenden Förderband 4 weitertransportiert. Die Umschnürungsmaschine 3 setzt sich zusammen aus einem Gestell 5 und einem darin in Förderrichtung der Packstücke 2 vor- und zurückschiebbar gelagerten Umschnürungsaggregat 6 mit einer das Umschnürungsmittel 7 um das Packstück 2 herumführenden Führungsvorrichtung 8 und einer aus Fig. 3 ersichtlichen, die beiden Enden der das Packstück 2 umschlingenden Schlaufe des Umschnürungsmittels miteinander verbindenden Schließvorrichtung 9.As Figures 1 and 2 show, 1 packages 2, z. B. stack of newspapers or the like of a strapping machine 3 and the strapped packages 2 'transported by a conveying belt 4. The strapping machine 3 is composed of a frame 5 and a strapping unit 6 mounted therein in the direction of conveyance of the packages 2 and can be pushed back and forth with a guiding device 8 which guides the strapping means 7 around the package 2 and a visible from FIG. 3, the two ends of the Package 2 wrapping loop of the strapping means connecting fastening device 9.

Wird als Umschnürungsmittel ein verschweißbares Kunststoffband benutzt, dann ist die Schließvorrichtung ein Schweißaggregat. Wird als Umschnürungsmittel Kordel oder dergleichen benutzt, dann ist die Schließvorrichtung ein Knoteraggregat. Wird als Umschnürungsmittel Draht benutzt, dann ist die Schließvorrichtung eine Verdrillvorrichtung, welche die Enden der Drahtschlaufe miteinander verdrillt. Die Führungsvorrichtung 8 und die Schließvorrichtung 9 befinden sich in der Umschnürungsebene. Zu beiden Seiten der Umschnürungsebene in Höhe der Förderbahn sind am verschiebbaren Umschnürungsaggregat 6 Fördermittel 10 angeordnet, welche die zu umschnürenden Packstücke 2 vom zuführenden Förderband 1 übernehmen und nach Verschieben des Umschnürungsaggregates 6 in Förderrichtung das umschnürte Packstück 2 an das abführende Förderband 3 abgibt.If a weldable plastic band is used as the strapping means, the closing device is a welding unit. If cord or the like is used as the tying means, the closing device is a knotting unit. If wire is used as the strapping means, the closing device is a twisting device which twists the ends of the wire loop together. The guide device 8 and the closing device 9 are located in the strapping plane. On both sides of the strapping level at the level of the conveyor track 6 conveying means 10 are arranged on the displaceable strapping unit, which take over the packages 2 to be strapped from the feeding conveyor belt 1 and, after shifting the strapping unit 6 in the conveying direction, delivers the strapped package 2 to the conveying conveyor belt 3.

Bei dem dargestellten Ausführungbeispiel ist das Fördermittel 10 ein Förderband 30, das über eine Einlaufrolle 11 eine erste Umkehrrolle 12, eine erste obere Umlenkrolle 13, eine erste untere Umlenkrolle 14, eine zweite untere Umlenkrolle 15, eine zweite obere Umlenkrolle 16, eine zweite Umkehrrolle 17, eine Ablaufrolle 18, eine erste Rückführrolle 19 und eine zweite Rückführrolle 20 so geführt ist, daß das in Umschnürungsstellung befindliche Packstück 2' zu beiden Seiten der Umschnürungsebene vom Förderband 30 getragen wird, aber zwischen den beiden Umkehrrollen 12 und 17 ein Spalt 21 freibleibt, durch den das Umschnürungsmittel 7 bewegt und in Kontakt mit der Schließvorrichtung 9 gebracht wird. Eine der Rollen 11 bis 20 ist als Antriebsrolle ausgebildet. Ferner können noch Spann- und Führungsrollen 22 und 23 vorgesehen sein. Beim dargestellten Ausführungsbeispiel ist die Abgaberolle 18 als Antriebsrolle ausgebildet. Die Rolle 18 wird über eine Kette 24 von einem am Gestell 5 befestigten Elektromotor 25 mit einer Geschwindigkeit angetrieben, welche der Fördergeschwindigkeit der beiden Förderbänder 1 und 4 entspricht.In the exemplary embodiment shown, the conveying means 10 is a conveyor belt 30, which has a first reversing roller 12, a first upper deflecting roller 13, a first lower deflecting roller 14, a second lower deflecting roller 15, a second upper deflecting roller 16, and a second reversing roller 17 via an infeed roller 11 , a run-off roller 18, a first return roller 19 and a second return roller 20 are guided such that the package 2 'located in the strapping position is carried on both sides of the strapping plane by the conveyor belt 30, but a gap 21 remains free between the two reversing rollers 12 and 17, through which the strapping means 7 is moved and brought into contact with the closing device 9. One of the rollers 11 to 20 is designed as a drive roller. Tensioning and guide rollers 22 and 23 can also be provided. In the illustrated embodiment, the discharge roller 18 is designed as a drive roller. The roller 18 is driven via a chain 24 by an electric motor 25 attached to the frame 5 at a speed which corresponds to the conveying speed of the two conveyor belts 1 and 4.

Wie insbesondere die Figuren 1, 2 und 4 zeigen, sind die Rollen 12 bis 17 an einem Rahmen 26 gelagert, der das Umschnürungsaggregat 6 mit der Führungsvorrichtung 8 und der Schließvorrichtung 9 trägt und der auf einer im Gestell 5 angebrachten Geradführung verschiebbar gelagert ist, die sich aus zwei im Rahmen 26 befestigten Führungsstangen 27 zusammensetzt. Eine parallel zu den Führungsstangen 27 im Gestell 5 angeordnete pneumatische oder hydraulische Kolben-Zylindereinheit 28, deren Kolbenstange 29 am Rahmen 26 angreift, bewirkt das Vor- und Zurückschieben des Umschnürungsaggregates 6. Anstelle einer Kolben-Zylindereinheit 28 kann auch ein motorisch antreibbarer Spindelantrieb benutzt werden. Der Antrieb 28 bewegt das Umschnürungsaggregat in Förderrichtung mit einer Geschwindigkeit, die der Fördergeschwindigkeit der Förderbänder 1 und 4 entspricht. Dabei wird auch das Förderband 30 des Umschnürungsaggregates 6 mit der Geschwindigkeit angetrieben, die der Fördergeschwindigkeit der Förderbänder 1 und 4 entspricht. Dadurch wird bewirkt, daß die Packstücke 2 ohne Verzögerung oder Beschleunigung vom zuführenden Förderband 1 übernommen, weitertransportiert und dabei umschnürt und das umschnürte Packstück 2 an das abführend Förderband 4 abgegeben werden. Weil bei der Bewegung des Umschnürungsaggregates 6 bzw. des Rahmens 26 in Förderrichtung das Umschnürungsaggregat 6 und das Förderband 30 im wesentlichen die gleiche Geschwindigkeit haben, steht das Förderband 30 relativ zum Umschnürungsaggregat 6 still, so daß trotz weiterlaufendem Förderband 30 die Umschnürung durchgeführt werden kann.As in particular Figures 1, 2 and 4 show, the rollers 12 to 17 are mounted on a frame 26 which carries the strapping unit 6 with the guide device 8 and the closing device 9 and which is slidably mounted on a straight guide mounted in the frame 5, which is composed of two guide rods 27 fastened in the frame 26. A pneumatic or hydraulic piston-cylinder unit 28 arranged parallel to the guide rods 27 in the frame 5, the piston rod 29 of which engages the frame 26, causes the strapping unit 6 to be pushed back and forth. Instead of a piston-cylinder unit 28, a motor-driven spindle drive can also be used . The drive 28 moves the strapping unit in the conveying direction at a speed which corresponds to the conveying speed of the conveyor belts 1 and 4. The conveyor belt 30 of the strapping unit 6 is also driven at the speed which corresponds to the conveyor speed of the conveyor belts 1 and 4. This has the effect that the packages 2 are taken over by the feeding conveyor belt 1 without delay or acceleration, transported further and strapped in the process, and the strapped package 2 is delivered to the discharging conveyor belt 4. Because during the movement of the strapping unit 6 or the frame 26 in the conveying direction the strapping unit 6 and the conveyor belt 30 have essentially the same speed, the conveyor belt 30 is stationary relative to the strapping unit 6, so that the strapping can be carried out despite the conveyor belt 30 continuing to run.

Wie insbesondere die Figur 3 zeigt, wird als Umschnürungsmittel 7 ein Kunststoffband benutzt, dessen Schlaufenenden von der Schließvorrichtung 9 miteinander verschweißt oder heißversiegelt werden. Die Schließvorrichtung 9 ist auch mit einer Abtrennvorrichtung versehen, welche die um das Packstück 2 gelegte Bandschlaufe vom Bandvorrat abtrennt. Die Führungsvorrichtung 8 weist beim dargestellten Ausführungsbeispiel einen Führungsrahmen auf, der einen rechteckförmigen Durchlaß 31 für die Packstücke 2 umrahmt. Unterhalb der Auflageebene des Packstücks 2 befindet sich im Umschnürungsaggregat eine Abzugs- und Einschießvorrichtung 32 für das Umschnürungsmittel 7. An der dem Packstück zugewandten Innenfläche weist der Führungsrahmen eine Führungsbahn auf. In diese Führungsbahn wird das Umschnürungsband 7 mittels der Abzieh- und Einschießvorrichtung eingeschossen, so daß der Anfang des Umschnürungsmittels 7 um das Packstück 2 herumgeführt wird und das Umschnürungsmittel 7 eine das Packstück 2 umschlingende Schlaufe bildet, die unter Festhalten des Bandanfangs zugezogen wird und dann unter Spannung geschlossen wird. Mit Hilfe der Schließ- und Abtrennvorrichtung 9 wird der Bandanfang mit dem Ende der Schlaufe verbunden, insbesondere verschweißt und die so geschlossene Schlaufe vom Bandvorrat abgetrennt.As FIG. 3 in particular shows, a plastic band is used as the strapping means 7, the loop ends of which are welded or heat-sealed by the locking device 9. The closing device 9 is also provided with a separating device which separates the band loop placed around the package 2 from the band supply. In the exemplary embodiment shown, the guide device 8 has a guide frame which frames a rectangular passage 31 for the packages 2. Below the support level of the package 2 there is a trigger and shoot-in device 32 for the strapping means 7 in the strapping unit. The guide frame has a guideway on the inner surface facing the package. The strapping band 7 is shot into this guideway by means of the pull-off and shooting device, so that the beginning of the strapping means 7 is guided around the package 2 and the strapping means 7 forms a loop looping around the package 2, which is drawn in while holding the beginning of the band and then under Voltage is closed. With the help of the closing and severing device 9, the beginning of the band is connected to the end of the loop, in particular welded, and the loop thus closed is separated from the band supply.

In den geradlinig verlaufenden Teilen der Führungsbahn wird die Führungsbahn von einem Mitnahmeband 33 gebildet, dessen Fördergeschwindigkeit gleich oder größer ist als die Geschwindigkeit, mit der das Umschnürungsmittel 7 eingeschossen wird. Das Mitnahmeband 33 ist ein endloser Flachriemen, der über Führungsrollen 34 und eine Antriebsscheibe 35 geführt ist. Anstelle einer rahmenartigen Führungsvorrichtung für das Umschnürungsmittel kann in bekannter Weise auch ein drehbarer Ring (US-A 23 39 395) verwendet werden.In the rectilinear parts of the guideway, the guideway is formed by a driving belt 33, the conveying speed of which is equal to or greater than the speed at which the strapping means 7 is shot. The driving belt 33 is an endless flat belt which is guided over guide rollers 34 and a drive pulley 35. Instead of a frame-like guide device for the strapping means, a rotatable ring (US Pat. No. 2,339,395) can also be used in a known manner.

Wie die Fig. 5 zeigt, können anstelle nur eines endlosen Förderbandes 30 auch drei Förderbänder 30, 30' vorgesehen sein, wobei das mittlere Förderband 30 beidseitig der Umschnürungsebene nicht so weit an die Umschnürungsebene heranreicht, wie die beiden seitlichen Förderbänder 30'. Die Umschnürungsebene verläuft in der Ebene des Mitnehmerbandes 33.As shown in FIG. 5, instead of only one endless conveyor belt 30, three conveyor belts 30, 30 'can also be provided, the middle conveyor belt 30 on both sides of the tying level not reaching as far as the tying level as the two lateral conveyor belts 30'. The strapping plane runs in the plane of the driving belt 33.

Bei dem mittleren Förderband 30 haben die Umkehrrollen 12 und 17 einen größeren Abstand von der Umschnürungsebene als die Umkehrrolle 12' und 17' der seitlichen Führungsbänder 30', weil zwischen ihnen die Schließ- und Abtrennvorrichtung 9 untergebracht ist. Die Umkehrrollen 12' und 17' der seitlichen Förderbänder 30' sind so nahe zusammen angeordnet, daß zwischen ihnen nur ein Spalt freibleibt, durch den das Umschnürungsmittel 7 bewegt werden kann. Die seitlichen Führungsbänder 30' haben den Vorteil, daß das Packstück 2 auch in Umsohnürungsposition gut unterstützt ist. Das mittlere Führungsband 30 hat den Vorteil, daß weiches und durchhängendes Material, z. B. Zeitungen, auch in der Mitte gut unterstützt ist.In the middle conveyor belt 30, the reversing rollers 12 and 17 are at a greater distance from the constriction plane than the reversing rollers 12 'and 17' of the side guide belts 30 'because the closing and severing device 9 is accommodated between them. The reversing rollers 12 'and 17' of the side conveyor belts 30 'are arranged so close together that only a gap remains between them through which the strapping means 7 can be moved. The lateral guide belts 30 'have the advantage that the package 2 is well supported even in the surrounding position. The middle guide band 30 has the advantage that soft and sagging material, e.g. B. newspapers, well supported in the middle.

Bei dem in den Figuren 3, 4 und 5 dargestellten Ausführungsbeispiel können Zeitungsstapel mit einer Fördergeschwindigkeit von 0,3 m/sec und in Abständen von etwa 0,3 m gefördert und dabei umschnürt werden. Der Fahrweg bzw. Verschiebeweg des Umschnürungsaggretates 6 beträgt etwa 0,3 m. Während die Verschiebegeschwindigkeit des Umschnürungsaggregates 6 in Förderrichtung etwa 0,3 m/sec beträgt, beträgt die Rücklaufgeschwindigkeit etwa 0,5 m/sec. Die Fördergeschwindigkeiten lassen sich noch erheblich steigern und entsprechend lassen sich auch noch die Abstände der zu umschnürenden Packstücke 2 verkürzen. Die zu umschnürenden Packstücke 2 können schon vom Förderband 30, 30' der Umschnürungsmaschine aufgenommen werden, während das vorhergehende Packstück 2 noch in Umschnürungsposition steht oder aber an das abführende Förderband 4 abgegeben wird. Der Umschnürungsvorgang wird von einem Tastschalter oder von einer Photozelle ausgelöst.In the exemplary embodiment shown in FIGS. 3, 4 and 5, newspaper stacks can be conveyed at a conveying speed of 0.3 m / sec and at intervals of approximately 0.3 m and thereby tied up. The travel path or displacement path of the strapping unit 6 is approximately 0.3 m. While the displacement speed of the strapping unit 6 in the conveying direction is approximately 0.3 m / sec, the return speed is approximately 0.5 m / sec. The conveyor speeds can be increased considerably and the distances between the packages 2 to be strapped can be shortened accordingly. The packages 2 to be strapped can already be picked up by the conveyor belt 30, 30 'of the strapping machine, while the preceding package 2 is still in the strapping position or is being delivered to the removing conveyor belt 4. The strapping process is triggered by a push button or by a photocell.

Fig. 6 zeigt ein Ausführungsbeispiel, bei dem alle Fördermittel des Umschnürungsaggregates Rollen 40 sind, die in Förderrichtung frei laufen und die mit Rücklaufsperren versehen sind. Das zuführende Förderband 1 schiebt die zu umschnürenden Packstücke 2 in die Umschnürungsposition. Es wird dann von einem Tastschalter oder von einer Selenzelle oder dergleichen der Umschnürungsvorgang und die Verschiebung des Umschnürungsaggregates 6 in Förderrichtung ausgelöst. Durch Abbremsen des Umschnürungsaggregates rollt infolge der Massenträgheitskräfte das umschnürte Packstück 2 auf das abführende Förderband. Zwischen den vor der Umschnürungsebene angeordneten Rollen 40 und den hinter der Umschnürungsebene angeordneten Rollen 40 befindet sich ein Spalt bzw. eine Lücke 21 zum Durchlaß des Umschnürungsmittels.6 shows an exemplary embodiment in which all the conveying means of the strapping unit are rollers 40, which run freely in the conveying direction and which are provided with backstops. The feeding conveyor belt 1 pushes the packages 2 to be strapped into the strapping position. The strapping process and the displacement of the strapping unit 6 in the conveying direction are then triggered by a pushbutton switch or a selenium cell or the like. By braking the strapping unit, the strapped package 2 rolls due to the inertia forces on the conveying belt. Between the rollers 40 arranged in front of the strapping plane and the rollers 40 arranged behind the strapping plane there is a gap or a gap 21 for the passage of the strapping means.

Fig. 7 zeigt eine Führung des Förderbandes 30, bei der weniger Umlenkrollen verwendet werden als bei der Ausführungsform nach den Fig. 1, 2 und 4.FIG. 7 shows a guide of the conveyor belt 30, in which fewer deflection rollers are used than in the embodiment according to FIGS. 1, 2 and 4.

Claims (10)

1. A parcel tying-up machine, which is to be placed between an input conveyor belt (1) for the parcels to be tied up an output conveyor belt (4) for the tied-up parcels, with a frame (5) and with a tying-up unit (6), which has a guide apparatus (8) for placing the tie round a parcel, and a tie-joiner (9), which is placed under the conveyor path in the tying-up plane and is designed for joining together the loop ends of the tie, characterized in that the tying-up unit (6) is supported so that it may be moved backwards and forwards in the frame (5) in the direction of transport of the parcels (2) and may be powered by a driving system (28), which is fixed to the frame (5) and takes effect in two directions of motion and in that on the two sides of the tying-up plane on the tying-up unit (6) at the level of the conveyor belt, conveying systems (10) are present for taking over the parcels (2) to be tied up from the input conveyor belt (1) and for handing over the parcel (2) after being tied up onto the output conveyor belt (3) after motion of the tying-up unit (6) in the direction of transport.
2. A tying-up machine as claimed in claim 1, characterized in that the tying-up unit (6) with the guide apparatus (8), the tie-joiner (9) and the conveyor systems (10) is placed on a frame (26), supported on a straight line guide (27) (placed in the frame 5) for backward and forward motion.
3. A tying-up machine as claimed in claim 2, characterized in that the straight line guide is made up of two guide rods (27) fixed in the frame (5) and which are round in cross-section.
4. A tying-up machine as claimed in anyone of claims 1 to 3, characterized in that the conveying systems (10) are rollers (40) able to be turned in the direction of transport of the parcels (2) and having free wheels for stopping them being turned backwards.
5. A tying-up machine as claimed in anyone of claims 1 to 3, characterized in that the conveying systems (10) are able to be moved with a peripheral speed which is the same as the transport speed of the input and output conveyor belts (1 and 4).
6. A tying-up machine as claimed in claim 5, characterized in that the transport systems (10) are formed by at least one endless conveyor belt (30) which is trained in line with the input conveyor belt (1) over an inlet roller (11), bearinged on the frame (5), and over a first direction-changing roller (12), placed at the tying-up unit (6) in front of the tying-up plane, and is then trained downwards round the tie-joiner (9) of the tying-up unit (6) over at least one direction-changing roller (13, 14, 15.16) bearinged on the tying-up unit (6) and is then trained upwards over a second direction-changing roller (17) placed in line with the line of transport after the tying-up plane and bearinged on the tying-up apparatus (6) and is trained in line with the transport path over a run- off roller (18), bearinged on the frame (5) and then the idle run off of the conveyor belt (30) is trained back over at least one guide-back roller (19, 20), bearinged on the frame (5) under the tying-up unit (6), for motion back to the inlet roller (11).
7. A tying-up machine as claimed in claim 6, characterized in that on the frame (26) of the tying-up unit (6) the first direction-changing roller (12) is bearinged near the top edge, turned towards the input conveyor belt (1), of the frame (26), a first top direction-changing roller (13) is bearinged near the lower edges, turned towards the input conveyor belt (1), of the frame (26), a first lower direction-changing roller (14) is bearinged near the lower edge, turned towards the output conveyor belt (4) of the frame (26), a second lower direction-changing roller (15) is bearinged near the top edge, turned towards the conveyor belt (4) of the frame (26), and a second top direction-changing roller (16) is placed to the back of the tying-up plane as the second direction-changing roller (17). 8. A tying-up machine as claimed in anyone of claims 1 to 7, characterized in that between the frame (5) and the movingly guided tying-up unit (6), at least one fluid-powered cylinder piston unit (28, 29) is placed.
9. A tying-up machine as claimed in anyone of claims 1 to 7, characterized in that between the frame (5) and the movingly guided tying unit (6) there is at least one electric motor powered leadscrew drive.
10. A tying-up machine as claimed in anyone of claims 1 to 9, characterized in that the movingly guided tying-up unit (6) has a middle conveyor belt (30) and two side conveyor belts (30') and the direction-changing rollers (12', 17') of the side conveyor belts (30') are nearer to the tying-up plane than the direction-changing rollers (12, 17) of the middle conveyor belt (30).
EP80901849A 1979-08-30 1981-03-09 Tying up machine Expired EP0034183B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2935028 1979-08-30
DE2935028A DE2935028C2 (en) 1979-08-30 1979-08-30 Strapping machine

Publications (2)

Publication Number Publication Date
EP0034183A1 EP0034183A1 (en) 1981-08-26
EP0034183B1 true EP0034183B1 (en) 1983-05-11

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EP80901849A Expired EP0034183B1 (en) 1979-08-30 1981-03-09 Tying up machine

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US (1) US4406219A (en)
EP (1) EP0034183B1 (en)
JP (1) JPH0335162B2 (en)
DE (1) DE2935028C2 (en)
WO (1) WO1981000548A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949519C2 (en) * 1979-12-08 1985-08-22 Hans Hugo 4020 Mettmann Büttner Machine for strapping packages
NL8105908A (en) * 1981-12-30 1983-07-18 Metaverpa Nv MECHANISM FOR TURNING AN OBJECT ABOUT A VERTICAL AXIS OVER A PARTICULAR ANGLE.
US4697510A (en) * 1986-12-22 1987-10-06 Cranston Machinery Co., Inc. Contamination deflector system for bale binding machines
DE3918674A1 (en) * 1989-06-08 1990-12-13 Buettner Kg Maschinenfabrik Gm MACHINE FOR RESTORING PACKAGES
DE4007264A1 (en) * 1990-03-08 1990-07-05 Smb Schwede Maschinenbau Gmbh Packing station for wrapping objects with diagonal cross strips
JP3761381B2 (en) * 2000-02-09 2006-03-29 山田機械工業株式会社 Unloading conveyor for bundling equipment
US6688215B1 (en) * 2002-10-18 2004-02-10 Illinois Tool Works, Inc. Stacker with integral strapper and modular head assembly

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Publication number Priority date Publication date Assignee Title
US2339395A (en) * 1939-01-16 1944-01-18 Harvey Herbert Tying machine
DE1223747B (en) * 1955-02-21 1966-08-25 Erapa Etablissement Fuer Ratio Device for tying packages with binding material
DE1209054B (en) * 1963-03-12 1966-01-13 Continental Gummi Werke Ag Conveyor device for workpieces
GB1120778A (en) * 1967-07-10 1968-07-24 Mid States Steel And Wire Comp Tying machine
JPS4821151B1 (en) * 1967-12-29 1973-06-26
GB1253050A (en) * 1968-12-19 1971-11-10
FR2010989A1 (en) * 1969-01-29 1970-02-27 Usinor
US3720158A (en) * 1971-10-18 1973-03-13 Signode Corp Bale strapping apparatus
DE2341614A1 (en) * 1973-08-17 1975-03-06 Moeller Manfred Film wrap packaging machine - has belt on table entrained by welder action then released during return
FR2391917A1 (en) * 1977-05-25 1978-12-22 Neogravure Adaptor for newspaper bundle tying machine - has presser foot holding bundle for first tying and rotating to permit second cross tying
GB2031368B (en) * 1978-09-20 1982-09-22 Anchor Building Products Ltd Tile packaging
US4292785A (en) * 1978-09-20 1981-10-06 Anchor Building Products Limited Tile packaging
DE2949519C2 (en) * 1979-12-08 1985-08-22 Hans Hugo 4020 Mettmann Büttner Machine for strapping packages

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Publication number Publication date
WO1981000548A1 (en) 1981-03-05
DE2935028A1 (en) 1981-03-12
JPS56501200A (en) 1981-08-27
EP0034183A1 (en) 1981-08-26
JPH0335162B2 (en) 1991-05-27
US4406219A (en) 1983-09-27
DE2935028C2 (en) 1986-10-23

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