DE1511648A1 - Method and device for securing the load on pallets - Google Patents

Description

Henkel & Cie GmbH Düsseldorf, December 12, 1966

Patent department. Henkelst ^ 67 151 1648

Boron / st

Patent and utility model auxiliary application D 3323 and D 3323 a

"Method and device; for securing the load on pallets"

The invention relates to a method and a device for Securing the load on pallets using shrinkable plastic pollen.

When shipping goods in smaller or larger containers are packaged, as well as piece goods, one uses a large number of standardized load carriers, which also include pallets to be named. The pallets loaded with goods can be transported and handled relatively easily, whereby one looks different mechanical means such as forklifts, taxiways and the like. To secure those stacked on pallets Goods have now been put around tapes, cords or even wire around the stacks of goods to prevent individual parts from slipping of the stack of goods or even their collapse and caused by this To avoid damage or transport disruptions. These.known Securing the stack of goods on pallets, however, has not proven effective in practice in many cases. Other than that, easy possible complete failure of a lacing and the associated damage to the packaged goods can be

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with the known cargo securing devices do not avoid that individual parts of the stack of goods in the event of vibrations during the Move each other's transports. This causes difficulties even without the stack of goods falling apart completely when handling loaded pallets standing next to one another, as the stacks become one inside the other as a result of the shifts can get caught.

This is where the invention comes in, which is based on the problem of handling loaded pallets to eliminate.

The solution to the above problem consists in a method for securing the load on pallets, which is characterized is that the side surfaces of the goods stacked on the pallet are wrapped with a shrinkable plastic film, connects the ends together and heat-treats the film to shrink.

In this way, the mostly cuboid stack shape of the goods to be transported on pallets certainly remains _; preserved in the event of relatively strong vibrations.

The stresses that occur in the film as a result of the shrinkage cause sufficient forces, which also include minor differences

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prevent movements of the cargo stack. In addition, diminished the smooth slide in strong hatred the friction of side by side parked loaded pallets. This makes pulling out a single loaded pallet much easier, since the possibility of dragging the stack of goods from neighboring pallets is practically completely prevented.

As shrink films are suitable for the implementation of the invention Process conventional pre-spoken foils made of ■ 'HD polyethylene, PVC or polyester,

It is useful that the shrink film the stack of goods on his upper end upwards and some downwards at its lower end Towering over centimeters. This is during the shrinking process on the one hand, a stapling of the stack of goods with »the pallet and on the other hand, a secure holding of the upper layer of the stack is achieved by the overlapping of the film.

The connection of the generally perpendicular film ends for the purpose of completely covering the stack of goods, it is expediently done in a known manner by means of a welded, mowed or sealed seam. It does not matter at which point on the side surfaces of the stack of goods the connecting seam of the film ends is attached. For the automated, cyclical execution of the Method, however, it is convenient that one using

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a two-part film, the connecting seams near the two vertical edges of a side surface of the stack of goods attaches. This also makes it possible, for example, to machine pallets of different sizes on their vertical ones To cover side surfaces with foils.

To carry out the latter method, the invention has Device proven, which is characterized by the following features:

a) The pallet conveyor belt runs along a stop wall.

b) On both sides of the conveyor belt there is a film supply roll that can be rotated vertically about its axis.

c) A film welding and cutting station is on a slide mounted, which is displaceable essentially transversely to the direction of movement of the pallet conveyor belt.

d) A film shrinking station is located in the direction of movement

· Behind the welding and cutting station.

The mode of operation of the device according to the invention is shown in the figure 1 emerged. Figures 2-5 show some possibilities of cladding pallets according to the invention, which with a Stacks of goods are loaded, the vertical connecting seams of the foils are arranged at different but arbitrary locations.

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On a conveyor belt 1, which is in front of a stop wall 4 is attached, move in the direction of the arrow with stacks of goods loaded pallets 2 + 3, which are different in size could be. A bracket 5 that can be moved to the side is locked one pallet each in the device, of the two film supply rolls 6 +7 rotatable about their axis, which on both sides of the conveyor belt 1 are set up, foils are unwound and thus the vertical sides of each straight locked stack of goods disguised. To do this, the film coming from the roll 6 is guided along the stop wall 4 so that, it covers the side of the stack of goods facing the stop wall 4. The film coming from the roll 7 is then Foil welding and cutting station mounted on a slide 8 around the other, in the present case vertical, sides of the stack of goods and finally against the one from the roll 6 coming film pressed, which rests against the stop wall 4. Here the vertical seam is formed in such a way that that after the stack of goods 2 has been separated by the knife 9j connected to the welding station 8, the foils 6 + 7 for the following Gutstapel 3 are also connected by this seam. Of course, it would also be possible to have two parallel vertical seams to be arranged close to each other and then to separate them with the knife. The final seam of the just wrapped stack of goods and become the first seam of the next good stack to be wrapped So made in one work gear.

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Mach release of the lock by the bracket 5 is now the covered pallet 2 is moved by the conveyor belt 1 to the shrinking station, not shown, where the film is known Way is caused to shrink by the action of heat. ' The shrinking process can be continuous or discontinuous be performed.

.After moving the welding station 8 back into its starting position can move the next loaded pallet 3 into the device, with the foils 6 + 7, which are described in the above Way are connected by a seam, unwinding from their supply rolls, pulls with them.

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Claims (5)

1511848 claims 1. Method for securing the load on pallets, characterized in that that the side surfaces of the goods stacked on the pallet with a shrinkable plastic film wraps around, connects the ends and the film shrinks through heat treatment. 2. The method according to claim 1, characterized in that the Foil protrudes above and below the stack of goods. 3. The method according to claims 1 / and 2, characterized in that that the film ends by a weld, sewn or Sealed seam connects. k. Process according to Claims 1 - 3, characterized in »that using; a two-part film attaches the connecting seams near the two vertical edges of a side surface of the stack of goods. 5. Device for performing the method according to claims 1 - M- characterized by the following features: a) The pallet conveyor belt (1) runs on a stop wall (4) along. b) One is vertical on both sides of the conveyor belt Cl) Set up rotatable film supply roll (6 or 7) around its axis. 009821/0363 c) A foil welding and cutting station is on one Slide mounted, which can be moved essentially transversely to the direction of movement of the pallet conveyor belt (1) is. d) A pile shrinking station is located behind the welding and cutting station in the direction of movement. (Dr. Haas) Gen.-Vollm. 8/1966 0 0 9 8 2 1/0 36 3