JP2997799B2 - Waste filling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste filling machine provided with a processing chamber for performing processing such as compression and melting on waste.

[0002]

2. Description of the Related Art Conventionally, a predetermined amount of waste is applied to an apparatus for performing processing such as compression and dissolution on waste.
A hopper is provided for supplying a processing chamber for performing processing such as compression and melting, and a certain amount of waste supplied from this hopper is packed, for example, by compressing or dissolving it in a block. Processing such as shaping.

As an example of such an apparatus, a waste compressor for compressing waste and performing volume reduction processing will be briefly described below.

FIG. 4 is a schematic configuration diagram of a conventional waste compressor. Such a waste compressor includes a hopper 32 that holds waste such as a PET bottle and discharges the waste in a predetermined amount, and a processing unit 33 that compresses the waste from the hopper 32. , And three parts of a packing unit for binding the compressed waste.

[0005] The hopper 32 holds a large number of PET bottles to be reduced in volume. The outlet of the hopper 32 is
The hopper 32 is opened to the processing chamber 33, and the hopper 32 is controlled so as to introduce a predetermined fixed amount of plastic bottles into the processing chamber 33.

The processing chamber 33 is provided with an inlet for introducing the PET bottles from the hopper 32 and an outlet for discharging the compressed PET bottles.
A main cylinder 34 for increasing / decreasing the volume of the PET bottle and compressing the PET bottle inside, and an extrusion cylinder 35 for pushing the PET bottle in the compressed state toward the outlet are provided.

Therefore, when a certain amount of plastic bottles are introduced into the processing chamber 33 from the hopper 32, the main cylinder 34
Descends and crushes the PET bottle to a thickness that can pass through the height of the outlet, and in this state, the extrusion cylinder 35 provided opposite the outlet pushes the compressed PET bottle toward the packing unit.

The packing section is provided in communication with the outlet of the processing chamber, and includes a binding machine 36 for binding the compressed PET bottles.

As described above, in an apparatus for compressing and melting waste such as a waste volume reducer, the waste is introduced into the processing chamber by a predetermined amount from a hopper and compressed and melted in the processing chamber. It is configured to perform processing such as dissolution.

[0010]

However, in such a conventional apparatus, the hopper 32 is disposed at a higher position than the processing chamber 33, and the waste is dropped by its own weight, thereby causing the processing chamber 3 to drop.
3, the waste easily accumulates near the entrance of the processing chamber 33, and there is a problem that the waste supplied by the hopper cannot be filled into the processing chamber satisfactorily.

In order to solve such a problem, wastes from the hopper 32 are pushed into the processing through the entrance of the processing chamber 33 below the hopper 32, and a pushing door 37 for closing the entrance of the processing chamber 33, There is conventionally provided a waste filling machine provided with a dispensing device for removing waste between the entrance and the push door just before the push door 37 closes the entrance of the processing chamber. In such a waste filling machine,
Immediately before the push-in door starts the closing operation, the waste device removes waste present in the waste supply path between the processing chamber entrance and the push-in door, in other words, the space in which the push-in door moves during the closing operation. And push-in door 3
7 pushes waste accumulated near the entrance of the processing chamber 33 into the processing chamber. For this reason, there is no fear that the waste is caught between the entrance of the processing chamber 33 and the push-in door 37, and the push-in door 37 can be smoothly closed, and the waste is introduced into the processing chamber 33 with a high filling rate. be able to. However, it is desired that the waste be introduced into the processing chamber at a higher filling rate. That is, since the waste such as a PET bottle has a very small specific gravity, when the dispensing device 39 removes the waste in the waste supply path to the upper part of the hopper 32, a plurality of wastes 3
1 are stacked in a bridge shape above the hopper 32, and a cavity 38 may be formed between the inner wall of the hopper 32, the bridge-like lump of waste 31, and the dispensing device 39 above the dispensing device 39. In such a state, the payout device 39
Even when the hopper 32 descends from the upper part of the hopper 32, the bridge-like lump acts as an obstacle, so that the waste located further above does not fall from the upper part of the hopper 32. Therefore, when a series of operations of removing the waste of the dispensing device, closing and opening the entrance of the processing chamber of the push-in door 1 and repeating the operation of filling the continuously input waste are performed, It is conceivable that the filling rate of the resin cannot be increased.

The present invention has been made in view of the above points, and breaks a bridge-like lump formed in the upper part of a hopper, and satisfactorily removes the waste supplied by the hopper. A main object of the present invention is to provide a waste filling machine capable of filling waste.

[0013]

To achieve the above object, the invention according to claim 1 is directed to a waste filling machine for filling waste into a processing chamber such as a volume reducing compressor through a hopper. A push door provided at a lower portion of the hopper before the entrance of the processing chamber, for pushing waste from the hopper into the processing chamber, and closing the entrance;
A dispenser for removing waste between the entrance and the push door immediately before the push door closes the entrance of the processing chamber, wherein the discharge device removes the waste. The present invention provides a waste filling machine characterized by having a projection protruding from the upper part of the hopper.

According to the present invention, since the dispensing device is provided with a projection projecting upward from the hopper, when the dispensing device removes waste, the waste is stacked in a bridge-like manner on the upper portion of the hopper, and is disposed above the dispensing device. Even if a cavity is formed, the lump of waste can be destroyed by the projection. For this reason, it is possible to prevent the bridge-like lump of waste from becoming an obstacle, and preventing waste from being introduced into the processing chamber from the upper part of the hopper. Therefore, even when a series of operations of removing the waste, closing and opening the entrance of the processing chamber of the push-in door are repeated, the filling rate of the waste into the processing chamber can be reduced even when performing the filling operation of the continuously input waste. Can be higher.

The structure of the projecting portion of the dispensing device is not particularly limited as long as it protrudes to the upper part of the hopper when the dispensing device removes waste and breaks up a lump of waste stacked in a bridge shape. Instead, it can be configured freely according to conditions such as the size of the hopper. For example, in order to simplify the structure of the dispensing device, the protrusion may be formed in a bar shape, a flat plate shape, or a square shape. Also,
In order to destroy the bridge-like waste mass more efficiently,
A plurality of protrusions may be provided on the dispensing device. In addition, the protrusion may be configured to be stored inside the dispensing device during normal times, and to automatically protrude to the upper part of the hopper when waste is removed.

A preferred embodiment of the waste filling apparatus according to the present invention is as described in claim 2. In the waste filling apparatus according to claim 1, the dispensing device is rotatable in the hopper. With a payout plate attached to the
The dispensing plate is disposed above the entrance when the push-in door fully opens the entrance, and rotates between the entrance and the push-in door immediately before the push-in door closes the entrance. The waste filling machine according to claim 1, wherein the waste filling machine is disposed at an upper portion, and the protrusion is provided on an upper surface of the dispensing plate on a hopper side.

In the present invention, the protrusion is provided on the upper surface of the dispensing plate on the hopper side. Therefore, even when the dispensing plate rotates and moves to the upper portion of the hopper, and the waste is stacked in a bridge shape on the upper portion of the hopper, the projections of the dispensing plate can break the bridge-like lump of waste. it can.
Therefore, even when the dispensing plate is lowered to the upper part of the entrance of the processing chamber, it is possible to prevent the waste from falling from the upper part of the hopper due to the obstruction of the bridge-like lump. For this reason, even when a series of operations of removing the waste, closing and opening the entrance of the processing chamber of the push-in door and repeating the operation of filling the continuously input waste, the waste is filled into the processing chamber. Rate can be increased.

The configuration of the projecting portion is not particularly limited as long as it is provided on the upper surface of the dispensing plate on the hopper side and breaks up a lump of waste stacked in a bridge shape. For example, in order to simplify the structure of the dispensing plate, the protrusion may be formed in a bar shape, a flat plate shape, or a square shape. Further, in order to more efficiently destroy the bridge-like lump of waste, a plurality of protrusions may be provided on the upper surface of the dispensing plate on the hopper side.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a waste compressor as one embodiment according to the present invention. Hopper 2 that supplies plastic bottles as waste
And a compression unit 10 for compressing and reducing the volume of the plastic bottle, and a binding machine 6 for binding the compressed plastic bottle.

The hopper 2 holds a large number of PET bottles to be reduced in volume. The discharge port of the hopper 2 is open to the compression chamber 3, and the hopper 2 is controlled so as to introduce a predetermined fixed amount of plastic bottles into the compression chamber 3.

A push door 1 is provided inside the hopper 2 along the entrance of the compression chamber 3.
Rotates around an axis provided along the compression chamber 3 after a certain amount of plastic bottles are supplied from the hopper 2,
After the PET bottle on the hopper 2 side near the entrance of the compression chamber 3 is pushed into the compression chamber 3, the entrance of the compression chamber 3 is closed. In the hopper 2, a payout plate 8, a shaft 7, and a support 9 constituting a payout device are provided.
The dispensing plate 8 is mounted so as to be rotatable about the rotation shaft 7 and is controlled so as to rotate from the upper portion of the inlet of the compression chamber 3 to the upper portion of the hopper immediately before the push-in door 1 starts the closing operation.

Here, an enlarged view of the push-in door 1 and the dispensing plate 8 is shown in FIG. 2, and a plan view of the dispensing plate 8 is shown in FIG.
The push-in door 1 includes a substantially fan-shaped pillar member, a rotating shaft 24 serving as a rotation center thereof, and an auxiliary member 24a attached to the rotating shaft 24 and provided integrally with the substantially fan-shaped pillar member. In addition, the fan-shaped column member has one side plane 21 (here, “side plane” means a plane surface among the side surfaces of the substantially fan-shaped column member. Hereinafter, the side surface of the substantially fan-shaped column member will be described. Are referred to as “side planes”).

The dispensing plate 8 is formed of a substantially L-shaped plate member. One end of the dispensing plate 8 is attached to the rotating shaft 7 of a support 9 attached to the upper part of the hopper 2,
The other end is inserted above the inlet 25 of the compression chamber 3. For this reason, the payout plate 8 is rotatable when the rotating shaft 7 rotates. On the upper surface of the dispensing plate 8 on the hopper side, two projections 13 each having a substantially prismatic shape and formed of the same member as the dispensing plate 8 are provided at positions parallel to each other. For this reason, when the dispensing plate 8 rotates to the upper part of the hopper 2, the protrusion 13 also moves to the upper part of the hopper accordingly, and breaks the lump of the stacked PET bottles.

The shapes, materials and quantities of the payout plate 8 and the projections 13 are not limited to those described above, and can be freely configured according to the size of the hopper 2.

The compression section 10 includes a compression chamber 3 which constitutes a processing chamber having an inlet for introducing the PET bottle from the hopper 2 and an outlet for discharging the compressed PET bottle, and a compression chamber which reciprocates up and down. A main cylinder 4 for increasing or decreasing the volume of 3 and compressing the plastic bottle inside, and an extrusion cylinder 5 for pushing out the compressed plastic bottle toward the outlet.
Are provided.

In the waste compressor configured as described above, the processing of reducing the volume of the PET bottle is performed as follows.

The PET bottle held in the hopper 2 falls by its own weight, and is introduced into the compression chamber 3 from the outlet of the hopper 2 and further from the inlet of the compression chamber 3. At this time,
The PET bottle passes through a waste supply path 27 between the entrance of the compression chamber 3 and the pushing door. Also, the payout plate 8
Because it is inserted into the upper part 8a of the inlet 25 of the compression chamber 3,
The introduction of the PET bottle into the compression chamber 3 is not hindered by the dispensing plate.

When a certain amount of plastic bottles are introduced from the hopper 2 into the compression chamber 3, the rotating shaft 7 rotates about π / 2 in a counterclockwise direction in FIG. For this reason, the dispensing plate 8 circles the waste supply path 27 between the compression chamber entrance and the push-in door 1 along the dotted line shown in FIG. Rotate in an arc,
Move to position 8b above hopper. Therefore, by the rotation of the dispensing plate 8, all the PET bottles existing in the waste supply path 27 are removed above the position 8b. At this time, the protrusion 13 is
Is provided on the upper surface on the hopper side, so that even if the PET bottles are stacked in a bridge shape on the upper portion of the hopper, the lump of the PET bottles is destroyed by the projections 13.

Next, with the dispensing plate 8 moved to the upper part of the hopper 2, the push-in door 1 rotates about the rotation shaft 24. For this reason, the pushing door 1 moves along the waste supply path 27 between the entrance of the compression chamber 3 and the pushing door 1, and the PET bottles protruding from the compression chamber 3 to the hopper 2 side are put into the compression chamber 3. Push in. That is, when the rotation shaft 24 rotates π / 4 in the direction toward the compression chamber 3 (counterclockwise in FIG. 2), the auxiliary member 24a provided integrally with the rotation shaft 24 forms a substantially fan-shaped column member. It pushes in the direction which goes to the compression chamber 3 side from the other side plane 22 side. For this reason, the substantially fan-shaped column member rotates toward the compression chamber 3 side, and the side plane 21 of the substantially fan-shaped column member is located between the entrance of the compression chamber 3 and the push-in door 1 as shown by the dotted line in FIG. And fits into the inlet 25 of the compression chamber 3 through the waste supply path. As a result, the substantially fan-shaped column member pushes the plastic bottle remaining in the vicinity of the compression chamber inlet 25 into the compression chamber 3 to close the inlet 25 of the compression chamber 3, and supplies the waste material at the lower part of the hopper 2 by the upper curved surface 23. The route will be closed.

As described above, the dispensing plate 8 moves the push door 1 to the compression chamber 3 with the PET bottle existing in the waste supply path 27 between the entrance of the compression chamber and the push door 1 removed to the upper part of the hopper. Since the entrance is closed, there is no fear that the PET bottle is caught between the entrance of the compression chamber 3 and the push-in door 1, the push-in door 1 can be smoothly closed, and the PET bottle can be inserted into the compression chamber 3. The filling rate can be higher.

Thereafter, the main cylinder 4 is lowered and the PET bottle is crushed by the pressure plate 4a to a thickness that can pass through the height of the outlet 11 of the compression chamber 3. Thereafter, the compressed PET bottle is discharged from the outlet 11 by the extrusion cylinder 5 provided opposite the outlet 11.

The outlet 11 of the compression chamber 3 communicates with the packing part, and the compressed PET bottles discharged from the outlet 11 are divided into a plurality of PET bottle blocks by the binding machine 6.
And bound by the binding machine 6.

When the PET bottle introduced into the compression chamber 3 is compressed and discharged by the pushing cylinder 5, the rotating shaft 24 is separated from the compression chamber 3 in order to introduce the untreated PET bottle again (FIG. 2). Clockwise at π
/ 4 rotation. On the rotating shaft 21, the auxiliary member 24a pulls the substantially fan-shaped column member from the other side flat surface 22 side.
2 and one side plane 21 also serves as one wall surface of the hopper 2 as shown by a solid line in FIG. That is, the upper curved surface 23 of the column member retreats from the waste supply path below the hopper 2 to release the waste supply path.

Thereafter, the dispensing plate 8 disposed at the position 8b above the hopper 2 rotates the rotating shaft 7 approximately π / 2 in the direction toward the inlet of the compression chamber 3 (clockwise in FIG. 2), and dispenses. One end of the plate 8 is inserted into the upper part of the inlet 25 of the compression chamber 3 and the rotation is stopped. That is, the waste supply path is released by the push-in door 1 and the dispensing plate 8
Retreats from the upper part of the hopper and moves to the upper part of the inlet 25 of the compression chamber 3. Here, in the upper part of the hopper, when the dispensing plate 8 rises, the protrusions 13 of the dispensing plate 8 have already broken the blocks stacked in a bridge shape. Therefore,
The PET bottle held at the top of the hopper falls again by its own weight, and waste can be introduced into the compression chamber 3.

Therefore, by repeatedly performing such an operation at regular intervals or at regular intervals, a predetermined amount of PET bottles can be filled into the compression chamber 3 and the waste filling rate can be increased. It is possible to do.

In the present embodiment, a waste compressor is described as an example. However, the present invention is not limited to this, and any apparatus having a configuration for introducing a target to be processed into a processing chamber by a predetermined amount can be used. , Can be applied to anything.

[0037]

As described above, according to the present invention, since the dispensing device is provided with the projection projecting from the upper part of the hopper, even if the waste is stacked in a bridge shape on the upper part of the hopper, the bridge of the waste is formed. It is possible to prevent the wastes from being introduced from the upper part of the hopper due to the obstruction of the lumps, and the filling rate of the wastes into the processing chamber can be further increased.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a waste compressor according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a push-in door and a dispensing device of the waste compressor according to one embodiment of the present invention.

FIG. 3 is a plan view of a discharge plate of the waste compressor according to the embodiment of the present invention.

FIG. 4 is a schematic configuration diagram of a conventional waste compressor.

[Explanation of symbols]

 1, 37: push-in door 2, 32: hopper 3: compression chamber 4, 34: main cylinder 4a: pressure plate 5, 35: extrusion cylinder 6, 36: binding machine 7: rotating shaft 8: payout plate 9: support 10 : Compression section 11: Compression chamber outlet 13, 39: Projection 21, 22: Side plane 23: Upper curved surface 24: Rotating shaft 24a: Auxiliary member 25: Compression chamber inlet 27: Waste supply path 29: Hopper discharge port 33: Processing room

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B30B 9/28 B30B 9/32

Claims (2)

(57) [Claims] 1. A waste filling machine for filling waste into a processing chamber such as a volume reducing compressor via a hopper, wherein the waste filling machine is provided at a lower portion of the hopper and before an entrance of the processing chamber, and is provided from the hopper. And a push door for closing the entrance while pushing the waste into the processing chamber, and provided between the entrance and the push door immediately before the push door closes the entrance of the processing chamber. A dispensing device that removes waste, wherein the dispensing device has a protrusion projecting above the hopper when removing waste. 2. The dispensing device further includes a dispensing plate rotatably mounted in the hopper, wherein the dispensing plate is disposed above the entrance when the push-in door fully opens the entrance. Immediately before the push door closes the entrance, the push door pivots between the entrance and the push door and is disposed above the hopper, and the protrusion is provided on a hopper-side upper surface of the dispensing plate. The waste filling machine according to claim 1, characterized in that: