EP0156012B1 - Method of enveloping stacked goods - Google Patents

Method of enveloping stacked goods Download PDF

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Publication number
EP0156012B1
EP0156012B1 EP84115167A EP84115167A EP0156012B1 EP 0156012 B1 EP0156012 B1 EP 0156012B1 EP 84115167 A EP84115167 A EP 84115167A EP 84115167 A EP84115167 A EP 84115167A EP 0156012 B1 EP0156012 B1 EP 0156012B1
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EP
European Patent Office
Prior art keywords
foil
goods
winding
way
film
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
EP84115167A
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German (de)
French (fr)
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EP0156012B2 (en
EP0156012A1 (en
Inventor
Helmut Schenke
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Individual
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Individual
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Publication date
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Priority to AT84115167T priority Critical patent/ATE29447T1/en
Publication of EP0156012A1 publication Critical patent/EP0156012A1/en
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Publication of EP0156012B1 publication Critical patent/EP0156012B1/en
Publication of EP0156012B2 publication Critical patent/EP0156012B2/en
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Expired - Lifetime legal-status Critical Current

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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
    • B65B11/58—Applying two or more wrappers, e.g. in succession
    • B65B11/585—Applying two or more wrappers, e.g. in succession to stacked articles, e.g. pallettised loads
    • 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
    • B65B11/02—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
    • B65B11/025—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders by webs revolving around stationary articles
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/14—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
    • B65B2210/20—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles the web dispenser being mounted on a rotary arm

Definitions

  • the invention relates to a method for wrapping stacked goods with an expandable plastic film (stretch film).
  • a winding machine for carrying out such a method which has a support which is rotatably mounted at one end about a vertical axis of rotation, at the free end of which a support arm extends vertically downwards, which carries a winding device which is used to hold a roll of plastic film trained and is adjustably mounted in the longitudinal direction of its support arm.
  • the carrier is rotated about the vertical axis of rotation after the end of the film has been placed on the good, the film being rolled off the roll under tension and wound helically around the good due to the height adjustment of the winding device.
  • the goods must be stacked on a pallet in this known winding machine.
  • the invention has for its object to provide a method of the type mentioned, which allows to completely wrap the good.
  • This object is achieved in that the wrapping is carried out from the bottom up, in such a way that something is rolled back up to the top and from there, then a film is placed on the top of the material and with its by means of adjustable means in a frame Edges around the top of the goods, then again up to the top and then wrapped down and finally the wrapping film is cut off.
  • the material is covered on its underside by a film which is firmly wrapped with its edges in the lateral, helical wrapping. In this way, a pallet can be dispensed with.
  • a particularly expedient development of the method according to the invention consists in that the goods are stacked in method step b) in such a way that two parallel stages for the engagement of a forklift arise at the lower edges of the container.
  • the foil lying on the underside of the container adapts to the steps, so that the fork of a forklift can be moved laterally under the container.
  • a chain conveyor 1 which has a series of bases 2, 3, 4 one behind the other, the z. B. may be formed by extending the width of the chain conveyor 1 brackets.
  • the bases 2, 3, 4 serve to carry a bundle of stacked goods.
  • a winding machine 5 is provided, which has a roof 7 on a frame with four supports 6, on which a carrier 8 is rotatably mounted about a vertical axis 9.
  • a vertically downwardly extending support arm 10, 11 is fastened to each of the two ends of the carrier 8.
  • Each support arm 10, 11 carries a winding device 12, 13, which is designed to hold a roll of the film material and is mounted so as to be adjustable in the longitudinal direction of its support arm 10, 11.
  • the material 14 to be wrapped is swished between the supports 6.
  • the goods 14 are moved from the station B into the station C, ie into the winding machine 5.
  • station C the edge of the film 15 is pressed up from below with the aid of blowers 18 and pneumatically actuated stamps 19.
  • the goods 14 are then wrapped by the wrapping films (stretch films) on the wrapping devices 12, 13 in such a way that the two ends of the foils wound on the rolls of the winding devices 12, 13 are placed on the goods 14 or are held in the vicinity thereof, and then the carrier 8 with the support arms 10, 11 is turned counterclockwise (arrow 20 in FIG. 5) with the aid of a Motor 21 is driven on the roof 7, the winding devices 12, 13 moving in the longitudinal direction of the support arms (10, 11 from the bottom up and back until all the goods 14 are wrapped. Then the films are removed from the rolls of the winding devices 12, 13 from separately, e.g. B. welded, and attached to the good 14 and the wrapping process is finished.
  • the wrapping takes place on the underside of the goods 14 in such a way that the roll of the winding device 12 is wound so far down that the wrapping film is placed around the lower edge of the container while the winding device 13 is already moving upwards puts.
  • the number and height of the windings and their pitch are variable.
  • the direction of rotation of the carrier 8 depends on the conveying direction of the packaged goods and can also take place in a clockwise direction.
  • the helical wrapping of the material 14 is carried out by moving the winding devices 12, 13 upwards.
  • the winding device 12 does not wrap the material 14 all the way up, but only in the lower area.
  • the edge of the film 15, which is pressed upwards by the components 18, 19, is thereby wrapped tightly by the films of the winding devices 12, 13, so that the container is held firmly together by a film by means of a forklift.
  • the winding machine 5 on the carrier 8 has a frame with rails 22 in which rollers 23 can be adjusted from the fully drawn position to the position shown in dashed lines.
  • the rollers 23 guide a plastic film 26 guided by a supply roll 24 via a deflection roller 25 and cause this plastic film 26 to be placed on the top of the good 14.
  • the rollers 23 are adjusted in the direction of arrow 27 without being rotated. Accordingly, you pull the film 26 from the supply roll 24.
  • the film 26 protrudes somewhat from the rollers 23 on the right and hangs downward in the right, dashed end position of the rollers 23.
  • rollers 23 When the rollers 23 move back against the arrow 27, they lay down in their fully drawn position on the top of the goods 14, because the rollers 23 are rotated during the return movement so that the film 26 is no longer moved. If the rollers 23 are again in their starting position, the film 26 is separated near this position and then falls onto the good 14. It can also be blown onto the good 14 with the aid of compressed air.
  • the wrapping of the material 14 on the upper side takes place in the station C in such a way that the winding device 13 winds up to the very top and from there somewhat backward when the film 26 is not yet placed, to the extent that it is below the lower, is the hanging edge of the film 26 when it is placed.
  • the film 26 is then placed in the manner described and its edges placed around the top of the good 14. Finally, with the help of the winding device 13, it is wound again all the way to the top and then all the way down and then the wrapping film is cut off. This prevents water from entering the material 14 from above.

Abstract

1. Method of winding an elastic plastics foil (stretch-foil) around stacked goods (14), characterized in that the winding takes place from below upwards, in such a way that it proceeds right up to the top and back a little from there, then a foil (26) is applied on the upper side of the goods (14) with the aid of means (23) movably guided in a mount and is applied with its edges around the upper side of the goods (14), then the winding proceeds again up to the very top and subsequently downwardly and finally the winding foil is cut off.

Description

Die Erfindung betrifft ein Verfahren zum Umwickeln von gestapeltem Gut mit einer dehbaren Kunststoffolie (Stretchfolie).The invention relates to a method for wrapping stacked goods with an expandable plastic film (stretch film).

Es ist eine Wickelmaschine zur Durchführung eines solchen Verfahrens bekannt, die einen an seinem einen Ende um eine vertikale Drehachse drehbar gelagerten Träger aufweist, an dessen freiem Ende sich ein Tragarm vertikal nach unten erstreckt, welcher eine Wickelvorrichtung trägt, die zur Aufnahme einer Rolle der Kunstostoffolie ausgebildet und in Längsrichtung ihres Tragarmes verstellbar gelagert ist. Zum Umwickeln des Gutes wird dabei der Träger nach dem Anlegen des Endes der Folie an das Gut um die vertikale Drehachse gedreht, wobei die Folie unter Spannung von der Rolle abgerollt und aufgrund der Höhenverstellung der Wickelvorrichtung schraubenförmig um das Gut herumgewickelt wird. Das Gut muß bei dieser bekannten Wickelmaschine auf einer Palette gestapelt werden.A winding machine for carrying out such a method is known, which has a support which is rotatably mounted at one end about a vertical axis of rotation, at the free end of which a support arm extends vertically downwards, which carries a winding device which is used to hold a roll of plastic film trained and is adjustably mounted in the longitudinal direction of its support arm. To wrap the good, the carrier is rotated about the vertical axis of rotation after the end of the film has been placed on the good, the film being rolled off the roll under tension and wound helically around the good due to the height adjustment of the winding device. The goods must be stacked on a pallet in this known winding machine.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs gennanten Art zu schaffen, das es erlaubt, das Gut vollständig zu umwickeln.The invention has for its object to provide a method of the type mentioned, which allows to completely wrap the good.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß das Umwickeln von unten nach oben erfolgt, derart, daß bis ganz nach oben und von dort etwas zurückgewickelt, anschlißend mit Hilfe von in einem Gestell verstellbar geführten Mitteln eine Folie auf die Oberseite des Gutes aufgelegt und mit ihren Rändern um die Oberseite des Gutes gelegt, dann erneut bis ganz nach oben und anschließend bis nach unten gewickelt und schließlich die Wickelfolie abgeschnitten wird.This object is achieved in that the wrapping is carried out from the bottom up, in such a way that something is rolled back up to the top and from there, then a film is placed on the top of the material and with its by means of adjustable means in a frame Edges around the top of the goods, then again up to the top and then wrapped down and finally the wrapping film is cut off.

In einer Weiterbildung der Erfindung wird das Gut auf seiner Unterseite von einer Folie abgedeckt, die mit ihren Rändern fest in die seitliche, schraubenförmige Umwicklung eingewickelt wird. Auf diese Weise kann auf eine Palette verzichtet werden.In a further development of the invention, the material is covered on its underside by a film which is firmly wrapped with its edges in the lateral, helical wrapping. In this way, a pallet can be dispensed with.

Eine besonders zweckmäßige Weiterbildung des erfindungsgemäßen Verfahrens besteht darin, daß das Gut im Verfahrensschritt b) derart gestapelt wird, daß zwei parallele Stufen für das Eingreifen eines Gabelstaplers an den unteren Rändern des Gebindes entstehen. Die auf der Unterseite des Gebindes liegende Folie paßt sich dabei den Stufen an, so daß die Gabel eines Gabelstaplers seitlich unter das Gebinde gefahren werden kann.A particularly expedient development of the method according to the invention consists in that the goods are stacked in method step b) in such a way that two parallel stages for the engagement of a forklift arise at the lower edges of the container. The foil lying on the underside of the container adapts to the steps, so that the fork of a forklift can be moved laterally under the container.

Die Erfindung ist nachfolgend anhand der Zeichnung näher erläutert. Es zeigen :

  • Figur 1 eine Seitenansicht einer Umwicklungsanlage zur Erläuterung des erfindungsgemäsen Verfahrens,
  • Figuren 2 und 3 Einzelheiten zur Erläuterung der Figur 1,
  • Figur 4 eine Ansicht der Wickelmaschine gemäß Figur 1 aus einer von Figur 1 abweichenden Richtung, und
  • Figur 5 eine Ansicht der Wickelmaschine gemäß Figur 4 von oben.
The invention is explained below with reference to the drawing. Show it :
  • FIG. 1 shows a side view of a wrapping system to explain the method according to the invention,
  • Figures 2 and 3 details to explain Figure 1,
  • 4 shows a view of the winding machine according to FIG. 1 from a direction deviating from FIG. 1, and
  • 5 shows a view of the winding machine according to FIG. 4 from above.

In der Figur 1 ist ein Kettenförderer 1 dargestellt, der hintereinander eine Reihe von Sockeln 2, 3, 4 aufweist, die z. B. von sich über die Breite des Kettenförderers 1 erstreckenden Bügeln gebildet sein können. Die Sockel 2, 3, 4 dienen zum Tragen eines Gebindes aus gestapeltem Gut. Für die Umwicklung dieses Gutes mit einer Kunststoffolie ist eine Wickelmaschine 5 vorgesehen, die an einem Gestell mit vier Stützen 6 ein Dach 7 aufweist, an dem ein Träger 8 um eine vertikale Achse 9 drehbar gelagert ist. An den beiden Enden des Trägers 8 ist je eine sich vertikal nach unten erstreckender Tragarm 10, 11 besfestigt. Jeder Tragarm 10, 11 trägt eine Wickelvorrichtung 12, 13, welche zur Aufnahme einer Rolle des Folienmaterials ausgebildet und in Längsrichtung ihres Tragarmes 10, 11 motorisch verstellbar gelagert ist. Das zu umwickelnde Gut 14 steht swischen den Stützen 6.In the figure 1, a chain conveyor 1 is shown, which has a series of bases 2, 3, 4 one behind the other, the z. B. may be formed by extending the width of the chain conveyor 1 brackets. The bases 2, 3, 4 serve to carry a bundle of stacked goods. For the wrapping of this material with a plastic film, a winding machine 5 is provided, which has a roof 7 on a frame with four supports 6, on which a carrier 8 is rotatably mounted about a vertical axis 9. A vertically downwardly extending support arm 10, 11 is fastened to each of the two ends of the carrier 8. Each support arm 10, 11 carries a winding device 12, 13, which is designed to hold a roll of the film material and is mounted so as to be adjustable in the longitudinal direction of its support arm 10, 11. The material 14 to be wrapped is swished between the supports 6.

Die Umwicklung des Gutes 14 erfolgt in folgender Weise :

  • Zunächst wird in der Station A auf dem Sockel 2 eine Kunststoffolie 15 aufgelegt, die über den Sockel 2 übersteht. Zur Verstärkung kann vor dem Stapeln des Gutes auch noch eine Platte, z. B. eine Pappplatte 16 auf die Folie 15 aufgelegt werden. Anschließend wird der Sockel 2 mit der Folie 15 und gegebenenfalls der Pappplatte 16 die die Station B bewegt, in der das Gut 14 auf der Folie 15 bzw. der Pappplatte 16 gestapelt wird. Das Gut kann dabei beispielsweise von Säcken, Steinen, Kartons oder dergleichen gebildet sein. Die Stapelung des Gutes 14 erfolgt gemäß den Figuren 2 und 3 derart, daß zwei parallele Stufen 17 für das Eingreifen eines Gabelstaplers an den unteren Rändern des Gebindes entstehen. Die Figur 2 zeigt dabei eine Ansicht des Gutes auf dem Sockel 2 in der Station B in Richtung des Kettenförderers 1, während die Figur 3 eine perspecktivische Darstellung des gestapelten Gutes 14 zeigt.
The wrapping of the goods 14 takes place in the following way:
  • First, a plastic film 15 is placed on the base 2 in the station A, which protrudes beyond the base 2. For reinforcement, a plate, e.g. B. a cardboard plate 16 are placed on the film 15. Subsequently, the base 2 with the film 15 and optionally the cardboard plate 16 which moves the station B, in which the goods 14 are stacked on the film 15 or the cardboard plate 16. The goods can be formed, for example, from sacks, stones, boxes or the like. The goods 14 are stacked according to FIGS. 2 and 3 in such a way that two parallel steps 17 are created for the engagement of a forklift at the lower edges of the container. 2 shows a view of the goods on the base 2 in station B in the direction of the chain conveyor 1, while FIG. 3 shows a perspective view of the stacked goods 14.

Von der Station B wird das Gut 14 in die Station C, d. h. in die Wickelmaschine 5 bewegt. In der Station C erfolgt ein Hochdrücken des Randes der Folie 15 von unten mit Hilfe von Gebläsen 18 und von pneumatisch betätigten Stempeln 19. Anschließend erfolgt die Umwicklung des Gutes 14 durch diie Wickelfolien (Stretchfolien) auf den Wiceklvorrichtungen 12, 13 in der Weise, daß die beiden Enden der auf den Rollen der Wickelvorrichtungen 12,13 aufgewickelten Folien an das Gut 14 angelegt oder in dessen Nähe gehaltert werden und daß dann der Träger 8 mit den Tragarmen 10, 11 entgegen dem Uhrzeigersinn (Pfeil 20 in Figur 5) mit Hilfe eines Motor 21 am Dach 7 angetrieben wird, wobei sich die Wickelvorrichtungen 12, 13 in Längsrichtung der Tragarme (10, 11 von unten nach oben und zurück bewegen, bis das gesamte Gut 14 umwickelt ist. Dann werden die Folien von den Rollen der Wickelvorrichtungen 12, 13 abgetrennt, z. B. abgeschweißt, und am Gut 14 befestigt und der Umwicklungsvorgang ist beendet.The goods 14 are moved from the station B into the station C, ie into the winding machine 5. In station C, the edge of the film 15 is pressed up from below with the aid of blowers 18 and pneumatically actuated stamps 19. The goods 14 are then wrapped by the wrapping films (stretch films) on the wrapping devices 12, 13 in such a way that the two ends of the foils wound on the rolls of the winding devices 12, 13 are placed on the goods 14 or are held in the vicinity thereof, and then the carrier 8 with the support arms 10, 11 is turned counterclockwise (arrow 20 in FIG. 5) with the aid of a Motor 21 is driven on the roof 7, the winding devices 12, 13 moving in the longitudinal direction of the support arms (10, 11 from the bottom up and back until all the goods 14 are wrapped. Then the films are removed from the rolls of the winding devices 12, 13 from separately, e.g. B. welded, and attached to the good 14 and the wrapping process is finished.

Die Umwicklung erfolgt dabei auf der Unterseite des Gutes 14 in der Weise, daß mit der Rolle der Wickelvorrichtung 12 so weit nach unten gewickelt wird, daß sich die Wickelfolie um den unteren Rand des Gebindes legt, während sich die Wickelvorrichtung 13 schon nach oben in Bewegung setzt. Die Anzahl und Höhe der Wicklungen sowie deren Steigung sind variabel. Die Drehrichtung des Trägers 8 hängt von der Förderrichtung des Packgutes ab und kann auch im Uhrzeigersinn erfolgen. Anschließend erfolgt dann erst die schraubenförmige Umwicklung des Gutes 14 durch Bewegung der Wickelvorrichtungen 12, 13 nach oben. Die Wickelvorrichtung 12 umwickelt das Gut 14 dabei nicht bis ganz nach oben, sondern nur im unteren Bereich. Der Rand der Folie 15, der durch die Komponenten 18, 19 nach oben gedrückt wird, wird dabei durch die Folien der Wickelvorrichtungen 12, 13 fest mit umwickelt, so daß das Gebinde beim Transport mit Hilfe eines Gabelstaplers durch die Folien fest zusammengehalten wird.The wrapping takes place on the underside of the goods 14 in such a way that the roll of the winding device 12 is wound so far down that the wrapping film is placed around the lower edge of the container while the winding device 13 is already moving upwards puts. The number and height of the windings and their pitch are variable. The direction of rotation of the carrier 8 depends on the conveying direction of the packaged goods and can also take place in a clockwise direction. Then the helical wrapping of the material 14 is carried out by moving the winding devices 12, 13 upwards. The winding device 12 does not wrap the material 14 all the way up, but only in the lower area. The edge of the film 15, which is pressed upwards by the components 18, 19, is thereby wrapped tightly by the films of the winding devices 12, 13, so that the container is held firmly together by a film by means of a forklift.

Aus den Figuren 1 und 4 geht hervor, daß die Wickelmaschine 5 am Träger 8 ein Gestell mit Schienen 22 aufweist, in denen Rollen 23 aus der voll ausgezogen gezeichneten Stellung in die gestrichelt gezeichnete Stellung verstellbar sind. Die Rollen 23 führen eine von einer Vorratsrolle 24 über eine Umlenkrolle 25 geführte Kunststoffolie 26 und bewirken, daß diese Kunststoffolie 26 auf der Oberseite des Gutes 14 aufgelegt wird. Hierzu werden die Rollen 23 in Richtung des Pfeiles 27 verstellt, ohne daß sie gedreht werden. Sie ziehen demgemäß die Folie 26 von der Vorratsrolle 24 ab. Die Folie 26 steht dabei rechts etwas aus den Rollen 23 heraus und hängt in der rechten, gestrichelt gezeichneten Endstellung der Rollen 23 nach unten. Sie legt sich bei Zurückbewegung der Rollen 23 entgegen dem Pfeil 27 in ihre voll gezeichnete Stellung auf der Oberseite des Gutes 14 auf, denn die Rollen 23 werden bei der Zurückbewegung so gedreht, daß die Folie 26 dabei nicht mehr bewegt wird. Befinden sich die rollen 23 wieder in ihrer Ausgangsstellung, so wird die Folie 26 nahe dieser Stellung abgetrennt und fällt dann auf das Gut 14. Sie kann auch mit Hilfe von Druckluft an das Gut 14 angeblasen werden.It can be seen from FIGS. 1 and 4 that the winding machine 5 on the carrier 8 has a frame with rails 22 in which rollers 23 can be adjusted from the fully drawn position to the position shown in dashed lines. The rollers 23 guide a plastic film 26 guided by a supply roll 24 via a deflection roller 25 and cause this plastic film 26 to be placed on the top of the good 14. For this purpose, the rollers 23 are adjusted in the direction of arrow 27 without being rotated. Accordingly, you pull the film 26 from the supply roll 24. The film 26 protrudes somewhat from the rollers 23 on the right and hangs downward in the right, dashed end position of the rollers 23. When the rollers 23 move back against the arrow 27, they lay down in their fully drawn position on the top of the goods 14, because the rollers 23 are rotated during the return movement so that the film 26 is no longer moved. If the rollers 23 are again in their starting position, the film 26 is separated near this position and then falls onto the good 14. It can also be blown onto the good 14 with the aid of compressed air.

Die Umwicklung des Gutes 14 auf der Oberseite erfolgt in der Station C in der Weise, daß die Wickelvorrichtung 13 bei zunächst noch nicht aufgelegter Folie 26 bis ganz nach oben und von dort etwas zurück wickelt, und zwar so weit, daß sie unterhalb des unteren, nach unten hängenden Randes der Folie 26 steht, wenn diese aufgelegt ist. Anschließend wird dann die Folie 26 in der geschilderten Weise aufgelegt und mit ihren Rändern um die Oberseite des Gutes 14 gelegt. Schließlich wird mit Hilfe der Wikkelvorrichtung 13 erneut bis ganz nach oben und anschließend bis nach unten gewickelt und dann die Wickelfolie abgeschnitten. Dadurch wird verhindert, daß Wasser von oben in das Gut 14 eindringen kann.The wrapping of the material 14 on the upper side takes place in the station C in such a way that the winding device 13 winds up to the very top and from there somewhat backward when the film 26 is not yet placed, to the extent that it is below the lower, is the hanging edge of the film 26 when it is placed. The film 26 is then placed in the manner described and its edges placed around the top of the good 14. Finally, with the help of the winding device 13, it is wound again all the way to the top and then all the way down and then the wrapping film is cut off. This prevents water from entering the material 14 from above.

Anstelle der Verwendung von zwei Wickelvorrichtungen 12, 13 kann auch nur eine vorgesehen werden, wobei dann natürlich auch nur ein Tragarm 10, 11 erforderlich ist.Instead of using two winding devices 12, 13, only one can also be provided, in which case, of course, only one support arm 10, 11 is required.

Claims (6)

1. Method of winding an elastic plastics foil (stretch-foil) around stacked goods (14), characterized in that the winding takes place from below upwards, in such a way that it proceeds right up to the top and back a little from there, then a foil (26) is applied on the upper side of the goods (14) with the aid of means (23) movably guided in a mount and is applied with its edges around the upper side of the goods (14), then the winding proceeds again up to the very top and subsequently downwardly and finally the winding foil is cut off.
2. Method according to claim 1, characterized in that before winding the following steps are taken :
a) laying a plastics foil (15) on a stand (2) of a conveyor device (1), in such a way that it protrudes over the edge of the stand,
b) stacking the goods (14) on the foil (15),
c) pushing the foil edge up from below, so that it can subsequently be wrapped with them.
3. Method according to claim 2, characterized in that the pushing-up is carried out by a blower (18) and/or plunger (19).
4. Method according to claim 2 or 3, characterized in that a panel is laid on the foil (15) before stacking the goods (14).
5. Method according to one of claims 2 to 4, characterized in that the goods (14) in stage (b) of this method are stacked in such a way that two parallel steps (17) form on the lower edges of the bundle for the engagement of a fork-lift truck.
6. Method according to one of claims 2 to 5, characterized in that winding takes place so far down that the winding foil lies arround the lower edge of the bundle.
EP84115167A 1983-12-13 1984-12-11 Method of enveloping stacked goods Expired - Lifetime EP0156012B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84115167T ATE29447T1 (en) 1983-12-13 1984-12-11 METHOD OF WRAPPING STACKED GOODS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3344940 1983-12-13
DE19833344940 DE3344940A1 (en) 1983-12-13 1983-12-13 METHOD FOR WRAPPING STACKED GOODS

Publications (3)

Publication Number Publication Date
EP0156012A1 EP0156012A1 (en) 1985-10-02
EP0156012B1 true EP0156012B1 (en) 1987-09-09
EP0156012B2 EP0156012B2 (en) 1990-10-24

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EP84115167A Expired - Lifetime EP0156012B2 (en) 1983-12-13 1984-12-11 Method of enveloping stacked goods

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EP (1) EP0156012B2 (en)
AT (1) ATE29447T1 (en)
DE (2) DE3344940A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3606826A1 (en) * 1986-03-03 1987-09-10 Helmut Schenke Stretch-film wrapping device
US4905448A (en) * 1987-05-29 1990-03-06 Wrapmatic, Inc. Overhead stretch film wrap machines, including overhead stretch film wrap machines with film pre-stretch devices
DE3912852C2 (en) * 1988-04-20 1996-02-29 Beumer Maschf Bernhard Method and device for forming loading units using a web-shaped stretch film
US5364226A (en) * 1989-05-17 1994-11-15 A.C.X. Trading, Inc. Method of unloading non-palletized units of cargo
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Also Published As

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EP0156012B2 (en) 1990-10-24
EP0156012A1 (en) 1985-10-02
DE3465950D1 (en) 1987-10-15
ATE29447T1 (en) 1987-09-15
DE3344940A1 (en) 1985-06-20

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