A device for handling piece-formed packing material.

(54) DESCRIPTION Empty and fill device for piece-shaped plastic packaging material (56) PUBLICATIONS REFERRED TO: US A 3,708,208 (302-28), US A 1,471,927 (302-17),

GB A 1 329 555 (B65G 53/04).

(57) SUMMARY:

Apparatus for handling piece-shaped packaging material, comprising a storage container (4) for the packaging material, which at its underside is provided with a closable outlet (13) connected to a hose (6) for dispensing material, and at its upper part with an inlet (3), which is connectable to a hose (6) for feeding material, and there may be applied in the inlet (3) an air stream capable of lifting and carrying packaging material in the direction of the storage container (4), the inlet (3) and the outlet (13) via a common valve housing (5) with shut-off means (9 and 12, respectively). ) are connectable to said hose (6), which is common for both input and output.

PRV 328 ALLF 138 9 132 AA

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The numbers in brackets indicate international identification code, INID code. Letters in clamps indicate international document code.

46ό 506

Background of the invention

For packaging of fragile goods, light, piece-shaped packaging material of plastic, so-called chips, which are allowed to surround the fragile goods in a carton or the like, is used in the transport area.

Handling of this material entails inconvenience when the chips are used in large quantity and volume, and to handle the handling manually is a cumbersome task.

US-A-3,708,208 discloses a distribution system with a storage container having a bottom outlet, to which is connected a pipeline into which an air stream transports light material from the container. No re-transport of material takes place as described in this publication.

US-A-1,471,927 discloses a conveyor for charcoal or the like consisting of a container having a bottom hole, a duct connected to the bottom hole in which an air stream is pressed, which transports the carbon bits out of the duct. To the upper part of the container is connected partly a suction line from a fan which generates the air flow in the discharge duct, and partly an inlet to a pipeline through which carbon pieces can be sucked into the container. The delivery and removal of the handled material takes place with two different pipelines, which would constitute a considerable disadvantage for a light goods handling device of the kind to which the present invention relates.

The object and the main features of the invention

According to the present invention, there is now proposed a handling device comprising a storage container for the packaging material, which is provided at its underside with a

6 ό ο U o closable outlet, which is connected to a hose for discharge of material, and at its upper part with an inlet, which is connectable to a hose for feeding of material, and where an inlet can be applied to the inlet with a capacity for lifting and carry packaging material in the direction of the storage container with the aid of which both filling and emptying and collection of chips can be done in a very labor-saving and easy way, and this has been achieved by connecting the inlet and outlet via a common valve housing with shut-off means with said hose, which is common to both inlet and outlet.

Description of the drawing

The invention will be described in more detail below with reference to an embodiment shown in the accompanying drawings.

Fig. 1 is a perspective view of the device according to the invention.

Fig. 2 is a schematic sectional view of the main parts of the device of Fig. 1 on a larger scale; and

Fig. 3 schematically shows on a larger scale a detailed solution in the device according to the invention.

Description of embodiments

In Fig. 1 is shown a device for the purpose comprising a motor housing 2 mounted on a bracket 1 with pipe duct 3, which communicates with a storage bag 4 for chips and via a valve housing 5, to which the storage bag 4 is also connected, with a hose 6 for dispensing or sucking up of chips.

Fig. 2 is a schematic cross-section through the device, which shows that the motor housing 2 contains a fan motor 7 which delivers an air flow in the direction of arrow A.

6 Ο ο ϋ ϋ

In the valve housing 5 there is a first valve 9 which, in a shown position, closes the end of a pipe nozzle 8, which communicates with the motor housing 2. via a junction box 10. In this position, air passes from the junction box through a gap 11 between the tube 3 and the upper end of the tube. the bounce 8, which projects into the lower end of the tube 3. Because the bag's material is sparse, the air which is passed through the tube 3 into the bag 4 will directly exit through the small openings of the bag.

If the valve 9 is opened to the position shown by dashed lines in Fig. 3, air flowing through the gap 11 into the pipe 3 will co-eject air from the valve housing and the associated hose 6, and when the hose end in a carton is brought down between light chips are sucked up via the hose 6, valve housing 5, pipe nozzle 8, pipe 3 and inserted into the bag 4.

In the valve housing 5 there is an additional valve 12 which, in the shown position, closes a pipe nozzle 13, located below and in direct contact with the storage bag 4. When this valve is opened, chips in the bag 4 will by gravity fall through the valve housing 5 and down into the hose 6 , so that a map round can be filled in easily.

To reduce the risk that chips should remain in the hose 6 if this e.g. partly horizontal, a hose 14 is connected to the collection box 10, which extends through the valve housing 5 and down into the hose 6, where it emits a small flow of air.

In Fig. 3 it is shown how the pivot joint for valve 9 is formed with an eccentric disc 15 arranged to throttle the air flow through the hose 14 when the valve 9 is opened, so that the suction of chips is not prevented by this flow of air.

The invention provides a simple and well-functioning device and by separating the fan motor from the material transport, the risk of clogging of the motor part is eliminated.

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The invention is not limited to the embodiment shown in the drawings and in connection with the embodiment described without modifications being possible within the scope of the following claims.