EP0140301B1 - Method and device for enveloping packages or bundles in stretch-foil - Google Patents

Method and device for enveloping packages or bundles in stretch-foil Download PDF

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Publication number
EP0140301B1
EP0140301B1 EP84112608A EP84112608A EP0140301B1 EP 0140301 B1 EP0140301 B1 EP 0140301B1 EP 84112608 A EP84112608 A EP 84112608A EP 84112608 A EP84112608 A EP 84112608A EP 0140301 B1 EP0140301 B1 EP 0140301B1
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EP
European Patent Office
Prior art keywords
roll
objects
film
guiding device
wrapping
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Expired
Application number
EP84112608A
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German (de)
French (fr)
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EP0140301A1 (en
Inventor
Peter Silbernagel
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B HAGEMANN AND Co
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B HAGEMANN AND Co
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Priority to AT84112608T priority Critical patent/ATE28306T1/en
Publication of EP0140301A1 publication Critical patent/EP0140301A1/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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/008—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material by webs revolving around articles moved along the axis of revolution
    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/58—Applying two or more wrappers, e.g. in succession

Definitions

  • the invention relates to a device for wrapping objects with a helix of a re-shrinkable film that can be peeled off a supply roll, the device having a roll guide device that is equipped with a supply roll and encompasses the articles in a frame-like manner, through which the articles are moved supported and on which the supply roll during of wrapping is mounted on a fixed path around the objects so as to be movable at a distance from them.
  • Such a device is known from DE-A 2 303 590, FIGS. 1 and 2.
  • the known device is used for objects of various shapes, e.g. Wooden bundles, window and door frames, paper rolls, sleeves, pipes, shaped steel, newspapers, magazines, etc., by wrapping with packaging material to form a package unit.
  • a stationary rotating frame which only partially encompasses the objects to be encased.
  • two supply rolls run on sled-like devices in a swinging manner around the axis of the objects.
  • a wrapping tape is attached to the lower edges of the objects to be wrapped. The film is then pulled over the top of the objects and also attached to the opposite lower edge.
  • a disadvantage of this second embodiment is that the fastening of the film requires an additional stop device and that the device is therefore more expensive.
  • Another disadvantage is that no opposite, continuous helix can be wound.
  • a device of the type mentioned at the outset which is characterized in that a second supply roll equipped with a film is provided on the roll guide device, the rolls being arranged in opposite directions on the front and rear sides of a common rotary frame.
  • the items to be encased include parcels and containers in particular, these terms characterizing two different types of items to be encased: “package” is understood to mean a more or less closed, possibly bulky, but not falling apart structure, for example a carpet roll, while a “package” »A structure is to be understood that is stacked out of cardboard boxes, objects or the like, which can be knocked down from its base under the influence of light force, for example through the wrapping film itself, or move without a base, so that the « package »is no longer has the original shape to be encased.
  • the drawing shows in perspective a device for wrapping packages 1.
  • the device has a roller guide device 2, with which a tape of a wrapping film 3, 3 'can be pulled off two supply rolls 4, 4'.
  • the supply rolls 4, 4 ' are each mounted on a rotating rim 5, 5' with a flying axis.
  • Each of the two rings 5, 5 ' is provided with a ring gear on its outside.
  • the two rings 5, 5 ' are rotated in opposite directions via two drive pinions 6, 6' which rotate in opposite directions but are driven by the same motor. Viewed in the direction of conveyance, the ring 5 rotates clockwise and the ring 5 'counterclockwise.
  • Two conveyor belts 7 and 8 are arranged in front of and behind the guide device 2 equipped with the two rings 5, 5 '.
  • a bridging conveyor (not shown here) can also convey the package or a container through the rings 5, 5 '.
  • Such bridging conveyors are known from DE-OS 3 119 657. This also allows shorter objects to be transported, the bridging conveyor belt and the objects being wrapped in the film as the process progresses.
  • the guide device 2 is surrounded by a holding frame 10.
  • the guide device 2 with the rotating rings 5, 5 'and the associated drive device is held by a supporting wall 11 which extends between the periphery of the rings 5, 5' and which has support devices (not shown) for the rings 5, 5 '.
  • the means for rotating the rings 5, 5 'and for transporting the enveloping objects are known per se.
  • the film 3, 3 ' is a stretch film, that is to say a re-shrinking film, which is pulled under tension by one of the supply rolls 4, 4', the supply rolls 4, 4 'rotating in opposite directions during wrapping on a fixed track.
  • a distance is kept from package 1: Package 1 is transported during wrapping, so that there are two layers of wrapping foil lying one on top of the other with an opposite slope.
  • the tension and the circulation speed of the supply rolls can be varied; however, the two supply rolls preferably run synchronously and with the same tension. This also means that the two rings 5, 5 'run in opposite directions and synchronously with the supply rolls 4, 4', being offset by at least one film width in the conveying direction.
  • the winding axes of the supply rolls are inclined to the axis of rotation of the rings 5 or 5 'by an angle between 2 - 20 ° from the parallel orientation, namely the roll 4 away from the package and the roller 4' towards the package.
  • This inclination of the roller axles means that the film is applied to the package without any wrinkles and without the need for additional guide and guide rollers.
  • the film pre-tension which depends on the circumstances and the composition of the film material, to be different in the two films, for example the first winding film 4 'with a slightly lower winding tension and the subsequent film 4 with a somewhat higher winding tension to wrap.
  • different film widths for example initially narrow (roll 4 '), then wide (roll 4), can be provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Abstract

Process and apparatus for an orbital stretch wrapper to form two superimposed layers of opposite pitch on items or bundles. Shrinkable film is drawn off two separate supply rolls under tension simultaneously in opposing rotational directions. The rolls are placed successively along the length of a conveyor belt separated by at least one width of the film.

Description

Die Erfindung betrifft eine Vorrichtung zum Umwickeln von Gegenständen mit einer Wendel einer von einer Vorratsrolle abziehbaren, nachschrumpfenden Folie, wobei die Vorrichtung eine mit einer Vorratsrolle bestückte, die Gegenstände rahmenartig umfasssenden Rollenführeinrichtung aufweist, durch welche die Gegenstände gestützt hindurchbewegt werden und an welcher die Vorratsrolle während des Umwickelns auf einer festen Bahn um die Gegenstände in Abstand zu diesen bewegbar angebracht ist.The invention relates to a device for wrapping objects with a helix of a re-shrinkable film that can be peeled off a supply roll, the device having a roll guide device that is equipped with a supply roll and encompasses the articles in a frame-like manner, through which the articles are moved supported and on which the supply roll during of wrapping is mounted on a fixed path around the objects so as to be movable at a distance from them.

Eine solche Vorrichtung ist aus der DE-A 2 303 590, Fig. 1 und 2, bekannt. Die bekannte Vorrichtung dient dazu, Gegenstände der verschiedensten Form, z.B. Holzbündel, Fenster- und Türrahmen, Papierrollen, Hülsen, Rohre, Formstahl, Zeitungen, Zeitschriften usw., durch Umwickeln mit Verpackungsmaterial zu einer Paketeinheit zusammenzufügen.Such a device is known from DE-A 2 303 590, FIGS. 1 and 2. The known device is used for objects of various shapes, e.g. Wooden bundles, window and door frames, paper rolls, sleeves, pipes, shaped steel, newspapers, magazines, etc., by wrapping with packaging material to form a package unit.

Bei einer anderen, abweichenden Ausführungsform der genannten DE-A (Fig. 10 und 11) ist ein stationärer Rotationsrahmen vorgesehen, der die zu umhüllenden Gegenstände nur teilweise umfasst. In entgegengesetzten Richtungen laufen an schlittenartigen Vorrichtungen zwei Vorratsrollen pendelnd um die Achse der Gegenstände. Die Befestigung eines umhüllenden Wickelbandes erfolgt jeweils an den Unterkanten der zu wickelnden Gegenstände. Die Folie wird dann über den Scheitel der Gegenstände hinweggezogen und an der gegenüberliegenden Unterkante ebenfalls befestigt.In another, different embodiment of the aforementioned DE-A (FIGS. 10 and 11), a stationary rotating frame is provided which only partially encompasses the objects to be encased. In opposite directions, two supply rolls run on sled-like devices in a swinging manner around the axis of the objects. A wrapping tape is attached to the lower edges of the objects to be wrapped. The film is then pulled over the top of the objects and also attached to the opposite lower edge.

Nachteilig bei dieser zweiten Ausführungsform ist, dass das Befestigen der Folie eine zusätzliche Anschlagvorrichtung erfordert und dass sich damit die Vorrichtung verteuert. Nachteilig ist weiterhin, dass keine gegenläufigen, durchgehenden Wendel gewickelt werden können.A disadvantage of this second embodiment is that the fastening of the film requires an additional stop device and that the device is therefore more expensive. Another disadvantage is that no opposite, continuous helix can be wound.

Zusätzlich nachteilig ist bei der vorgenannten Ausführungsform die Verwendung zweier separater Fahrmotoren für die die Rollen tragenden Schlitten, da hierdurch ein synchroner Lauf kaum oder doch nur mit relativ hohem technischen Aufwand erreichbar ist. Durch diese mitlaufenden Motoren werden zudem die bwegten Massen ungünstig vergrössert, so dass die tragenden Teile der Rollenführeinrichtung sehr starken Belastungen unterliegen. Bei der bekannten Vorrichtung ist es offensichtlich erforderlich, die Rollen an Schlitten zu befestigen, da die beim Hin- und Hergehen sich ergebenden erheblichen Massenkräfte in der Schlittenführung aufgefangen werden müssen. Eine hohe Wickelgeschwindigkeit ist deshalb nicht realisierbar, wodurch der Vorrichtung eine ungenügende Wirtschaftlichkeit anhaftet.In addition, the use of two separate traction motors for the carriages carrying the rollers is disadvantageous in the aforementioned embodiment, since as a result synchronous running can hardly be achieved or can only be achieved with a relatively high technical outlay. These moving motors also unfavorably increase the masses that are transported, so that the load-bearing parts of the roller guide device are subject to very high loads. In the known device, it is obviously necessary to fasten the rollers to the sled, since the considerable inertia forces which arise during the to-and-fro movement have to be absorbed in the sled guide. A high winding speed is therefore not feasible, as a result of which the device suffers from insufficient economy.

Es stellt sich demgegenüber die Aufgabe, eine Vorrichtung der eingangs genannten Art zu schaffen, bei der eine besonders kompakte Bauweise für den Antrieb möglich ist und bei welcher die sich durch die bewegten Massen ergebenden Fliehkraft- und Trägheitskomponenten möglichst klein sind und sich gegenseitig kompensieren. Die Vorrichtung soll insbesondere zum schnellen Wickeln von vorgestreckten, nachschrumpfenden Folien, sogenannten Stretchfolien, verwendet werden. Hierbei sind besonders schwere (und unter Zugspannung stehende) Vorratsrollen zu bewegen.In contrast, there is the task of creating a device of the type mentioned, in which a particularly compact design for the drive is possible and in which the centrifugal and inertial components resulting from the moving masses are as small as possible and compensate each other. The device is to be used in particular for the rapid winding of pre-stretched, post-shrink films, so-called stretch films. Particularly heavy (and under tension) supply rolls are to be moved.

Diese Aufgabe wird gelöst bei einer Vorrichtung der eingangs genannten Art, die dadurch gekennzeichnet ist, dass an der Rollenführeinrichtung eine zweite mit einer Folie bestückte Vorratsrolle vorgesehen ist, wobei die Rollen auf der Vorder- und Rückseite eines gemeinsamen Rotationsrahmens gegenläufig rotierbar angeordnet sind.This object is achieved in a device of the type mentioned at the outset, which is characterized in that a second supply roll equipped with a film is provided on the roll guide device, the rolls being arranged in opposite directions on the front and rear sides of a common rotary frame.

Unter die einzuhüllenden Gegenstände fallen insbesondere Packstücke und Gebinde, wobei diese Begriffe zwei unterschiedliche Arten von einzuhüllenden Gegenständen charakterisieren: Unter «Packstück» wird ein mehr oder weniger geschlossenes, möglicherweise sperriges, aber nicht auseinanderfallendes Gebilde verstanden, beispielsweise eine Teppichrolle, während unter einem «Gebinde» ein Gebilde verstanden werden soll, das aus Kartons, Gegenständen oder dergleichen aufgestapelt ist, die bei leichterer Krafteinwirkung, beispielsweise durch die Wickelfolie selbst, von ihrer Unterlage herabgestossen werden können, oder sich ohne Unterlage verschieben, so dass das «Gebinde» damit nicht mehr die ursprüngliche, zu umhüllenden Form aufweist.The items to be encased include parcels and containers in particular, these terms characterizing two different types of items to be encased: “package” is understood to mean a more or less closed, possibly bulky, but not falling apart structure, for example a carpet roll, while a “package” »A structure is to be understood that is stacked out of cardboard boxes, objects or the like, which can be knocked down from its base under the influence of light force, for example through the wrapping film itself, or move without a base, so that the« package »is no longer has the original shape to be encased.

Es zeigt sich, dass insbesondere das Einhüllen von Gebinden grosse Schwierigkeiten bereitet, da beispielsweise aufeinandergestapelte, leichte Kartonverpackungen, die mit Plastikgegenständen gefüllt sind, dazu tendieren, beim Umwickeln mit einer vorgespannten Stretchfolie aus dem Gebinde herausgedrückt und verschoben zu werden.It turns out that wrapping containers in particular is very difficult since, for example, stacked, light cardboard packaging that is filled with plastic objects tend to be pushed out of the container and shifted when wrapped with a pre-tensioned stretch film.

Durch das gegenläufige Umhüllen durch hintereinandergeschaltete Vorratsrollen wird eine vorhandene Torsionsspannung aufgehoben; sie ist praktisch nur auf einer kurzen Wegstrecke überhaupt wirksam. Damit ist es möglich, beispielsweise ein Gebinde von 3 x 3 kg Waschpulverkartons in der eingangs genannten Art in einer Stretchfolie einzuhüllen. Erst die um 360° umlaufende Bewegung der Vorratsrollen, die vorzugsweise an Rollenführkränzen fliegend aufzuhängen sind, erlaubt einen kompakten und hochbelastbaren Antrieb, wodurch die beim beschriebenen Stand der Technik vorhandenen Nachteile überwunden werden.Existing torsional tension is eliminated by the opposite wrapping by series-connected supply rolls; it is practically only effective over a short distance. This makes it possible, for example, to wrap a container of 3 x 3 kg of washing powder cartons in the aforementioned manner in a stretch film. Only the 360 ° rotating movement of the supply rolls, which should preferably be suspended from the roller guide rings, allows a compact and heavy-duty drive, which overcomes the disadvantages of the prior art described.

Ein Ausführungsbeispiel der erfindungsgemässen Vorrichtung ist in der Zeichnung dargestellt.An embodiment of the device according to the invention is shown in the drawing.

Die Zeichnung zeigt perspektivisch eine Vorrichtung zum Umhüllen von Packstücken 1. Die Vorrichtung weist eine Rollen-Führeinrichtung 2 auf, mit der von zwei Vorratsrollen 4, 4' je ein Band einer Wickelfolie 3, 3' abgezogen werden kann. Die Vorratsrollen 4, 4' sind mit einer fliegenden Achse je auf einem rotierenden Kranz 5, 5' montiert. Jeder der beiden Kränze 5, 5' ist auf seiner Aussenseite mit einem Zahnkranz versehen. Über zwei Antriebsritzel 6, 6', die gegenläufig rotieren, jedoch von demselben Motor angetrieben sind, werden die beiden Kränze 5, 5' gegensinnig in Drehung versetzt. In Förderrichtung gesehen rotiert der Kranz 5 im Uhrzeigersinn und der Kranz 5' im Gegenuhrzeigersinn.The drawing shows in perspective a device for wrapping packages 1. The device has a roller guide device 2, with which a tape of a wrapping film 3, 3 'can be pulled off two supply rolls 4, 4'. The supply rolls 4, 4 'are each mounted on a rotating rim 5, 5' with a flying axis. Each of the two rings 5, 5 'is provided with a ring gear on its outside. The two rings 5, 5 'are rotated in opposite directions via two drive pinions 6, 6' which rotate in opposite directions but are driven by the same motor. Viewed in the direction of conveyance, the ring 5 rotates clockwise and the ring 5 'counterclockwise.

Vor und hinter der mit den beiden Kränzen 5, 5' ausgestatteten Führeinrichtung 2 sind zwei Förderbänder 7 und 8 angeordnet. In bestimmten Fällen kann auch ein Überbrückungsförderer (hier nicht dargestellt) das Packstück oder ein Gebinde durch die Kränze 5, 5' hindurchfördern. Derartige Überbrückungsförderer sind aus der DE-OS 3 119 657 bekannt. Damit können auch kürzere Gegenstände transportiert werden, wobei während des Fortschreitens das Überbrückungsförderband und die Gegenstände in die Folie eingewickelt werden.Two conveyor belts 7 and 8 are arranged in front of and behind the guide device 2 equipped with the two rings 5, 5 '. In certain cases a bridging conveyor (not shown here) can also convey the package or a container through the rings 5, 5 '. Such bridging conveyors are known from DE-OS 3 119 657. This also allows shorter objects to be transported, the bridging conveyor belt and the objects being wrapped in the film as the process progresses.

Die Führeinrichtung 2 ist von einem Haltegestell 10 umgeben. Die Führeinrichtung 2 mit den rotierenden Kränzen 5, 5' und der dazugehörenden Antriebsvorrichtung wird von einer Tragwand 11 gehalten, die zwischen die Peripherie der Kränze 5, 5' reicht und die über (nicht dargestellte) Stützvorrichtungen für die Kränze 5, 5' verfügt.The guide device 2 is surrounded by a holding frame 10. The guide device 2 with the rotating rings 5, 5 'and the associated drive device is held by a supporting wall 11 which extends between the periphery of the rings 5, 5' and which has support devices (not shown) for the rings 5, 5 '.

Die Mittel, um die Kränze 5, 5' rotieren zu lassen und die umhüllenden Gegenstände zu transportieren, sind an sich bekannt. Bei der Folie 3, 3' handelt es sich um Stretchfolie, also um eine nachschrumpfende Folie, die unter Zugspannung von einer der Vorratsrollen 4, 4' angezogen wird, wobei die Vorratsrollen 4, 4' während des Umwickelns auf einer festen Bahn gegenläufig rotieren. Vom Packstück 1 wird dabei Abstand gehalten: Das Packstück 1 wird während des Umhüllens transportiert, so dass sich wendelartig zwei mit gegenläufiger Steigung aufeinanderliegende Wickelfolien-Lagen ergeben. Die Zugspannung und die Umlaufgeschwindigkeit der Vorratsrollen können variiert werden; vorzugsweise laufen jedoch die beiden Vorratsrollen synchron und mit gleicher Spannung. Das bedeutet auch, dass die beiden Kränze 5, 5' mit den Vorratsrollen 4, 4' gegenläufig und synchron laufen, wobei sie in Förderrichtung um wenigstens eine Folienbreite versetzt sind.The means for rotating the rings 5, 5 'and for transporting the enveloping objects are known per se. The film 3, 3 'is a stretch film, that is to say a re-shrinking film, which is pulled under tension by one of the supply rolls 4, 4', the supply rolls 4, 4 'rotating in opposite directions during wrapping on a fixed track. A distance is kept from package 1: Package 1 is transported during wrapping, so that there are two layers of wrapping foil lying one on top of the other with an opposite slope. The tension and the circulation speed of the supply rolls can be varied; however, the two supply rolls preferably run synchronously and with the same tension. This also means that the two rings 5, 5 'run in opposite directions and synchronously with the supply rolls 4, 4', being offset by at least one film width in the conveying direction.

Die Wickelachsen der Vorratsrollen sind zur Rotationsachse der Kränze 5 bzw. 5' um einen Winkel zwischen 2 - 20° aus der parallelen Ausrichtung geneigt, und zwar die Rolle 4 vom Packstück weg und die Rolle 4' zum Packstück hin. Diese Schrägstellung der Rollenachsen bewirkt, dass sich die Folie praktisch faltenfrei und ohne Notwendigkeit weiterer Führungs- und Leitrollen glatt an das Packstück anlegt.The winding axes of the supply rolls are inclined to the axis of rotation of the rings 5 or 5 'by an angle between 2 - 20 ° from the parallel orientation, namely the roll 4 away from the package and the roller 4' towards the package. This inclination of the roller axles means that the film is applied to the package without any wrinkles and without the need for additional guide and guide rollers.

Es ist auch möglich, die Folien-Vorspannung, die sich nach den Gegebenheiten und der Zusammensetzung des Folienmaterials richtet, bei den beiden Folien verschieden stark auszubilden, beispielsweise die zuerst wickelnde Folie 4' mit etwas geringerer und die nachfolgende Folie 4 demgegenüber mit etwas höherer Wickelspannung wickeln zu lassen. Ausserdem können verschiedene Folienbreiten, beispielsweise zunächst schmal (Rolle 4'), dann breit (Rolle 4), vorgesehen sein.It is also possible to design the film pre-tension, which depends on the circumstances and the composition of the film material, to be different in the two films, for example the first winding film 4 'with a slightly lower winding tension and the subsequent film 4 with a somewhat higher winding tension to wrap. In addition, different film widths, for example initially narrow (roll 4 '), then wide (roll 4), can be provided.

Weiter ist möglich, die Kränze 5, 5' mit den Wickelrollen 3, 3', vorzugsweise über die Tragwand 11, die in zwei gegenüberliegenden Führungsleisten 14 geführt ist, mit Hilfe einer Kolben-ZylinderAnordnung 15 höhenverstellbar zu machen. Damit ergibt sich die Möglichkeit, den Wickelvorgang auf verschiedene Packstück-Höhen auszurichten. Auch eine Seitenverstellbarkeit kann vorgesehen sein, wenn dies bei häufigem Vorkommen besonders sperriger Güter wünschenswert sein sollte.It is also possible to make the rims 5, 5 'with the winding rollers 3, 3', preferably via the support wall 11, which is guided in two opposite guide rails 14, adjustable in height by means of a piston-cylinder arrangement 15. This results in the possibility of aligning the winding process to different package heights. Lateral adjustability can also be provided if this should be desirable in the case of frequent occurrence of particularly bulky goods.

Claims (3)

1. Apparatus for wrapping objects (1) with a helix of shrinkable film (3, 3') to be unwound from a supply roll (4, 4'), said apparatus comprising a roll guiding device (2) carrying a supply roll (4, 4') and embracing frame-like the objects, said objects (1) being conveyed through said roll guiding device, said supply roll (4, 4') is connected to said roll guiding device so as to be moved on a fixed orbit around the objects (1) at a certain distance, characterized by that a second supply roll (4, 4') supplied with film (3, 3') is connected to the roll guinding device (2), said roll (4, 4') positioned on the front and rear side of a common rotation frame (11) in opposite rotational directions.
2. Apparatus according to claim 1, characterized by that the roll guiding device (2) comprises two rotating rings (5, 5').
3. Apparatus according to claim 1, characterized by that the rotational frame (11) is adjustable regarding the height relative to the conveying plane of the objects (1).
EP84112608A 1983-10-29 1984-10-19 Method and device for enveloping packages or bundles in stretch-foil Expired EP0140301B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84112608T ATE28306T1 (en) 1983-10-29 1984-10-19 METHOD AND DEVICE FOR WRAPPING PACKAGES OR CONTAINERS IN STRETCH FILM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3339337 1983-10-29
DE19833339337 DE3339337A1 (en) 1983-10-29 1983-10-29 METHOD AND DEVICE FOR ENHANCING PACKAGE PIECES OR CONTAINERS IN SHRINK FILM

Publications (2)

Publication Number Publication Date
EP0140301A1 EP0140301A1 (en) 1985-05-08
EP0140301B1 true EP0140301B1 (en) 1987-07-15

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EP84112608A Expired EP0140301B1 (en) 1983-10-29 1984-10-19 Method and device for enveloping packages or bundles in stretch-foil

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US (1) US4723393A (en)
EP (1) EP0140301B1 (en)
AT (1) ATE28306T1 (en)
DE (1) DE3339337A1 (en)

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Also Published As

Publication number Publication date
EP0140301A1 (en) 1985-05-08
US4723393A (en) 1988-02-09
ATE28306T1 (en) 1987-08-15
DE3339337A1 (en) 1985-05-15
DE3339337C2 (en) 1992-05-07

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