JP2943052B2 - Waste volume reduction 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 volume reducing machine for compressing containers such as PET bottles to reduce the volume.

[0002]

2. Description of the Related Art Conventionally, volume reduction processing of bulky waste materials such as PET bottles has been performed by using a waste volume reduction machine which compresses a large amount of the waste material and binds them into a block.

[0003] Generally, a waste volume reducing machine used for such volume reduction processing is roughly divided into three parts. That is, the first portion is a hopper portion that holds waste such as a PET bottle and discharges the waste in a predetermined amount, the second portion is a compression portion that compresses waste from the hopper portion, and the third portion is a compression portion. It is a packing unit that binds the collected waste.

FIG. 5 shows a schematic configuration of an example of such a waste volume reducing machine. In FIG. 5, a hopper 55 constituting a hopper section holds a large number of plastic bottles to be reduced in volume. The outlet of the hopper 55 is open to the compression chamber 51 described later,
5 is controlled so that a predetermined fixed amount of plastic bottles is introduced into the compression chamber 51.

The compression section includes a compression chamber 51 into which a plastic bottle is introduced from a hopper 55, a main cylinder 52 for reciprocating up and down to increase or decrease the volume of the compression chamber 51 and compress the internal plastic bottle, and a main cylinder 52. An outlet 51a for discharging the PET bottle compressed by 52 and an extrusion cylinder 53 for extruding the compressed PET bottle toward the outlet 51a are provided.

Therefore, when a certain amount of plastic bottles are introduced into the compression chamber 51 from the hopper 55, the main cylinder 5
2, the PET bottle is crushed to a thickness that allows it to pass the height of the outlet 51a, and in this state, the extruding cylinder 53 provided opposite the outlet 51a pushes the compressed PET bottle toward the packing unit. And extrude.

The packing portion is provided in communication with an outlet 51a of the compression chamber 51, and includes a binding machine 54 for binding a compressed PET bottle, and a gate opening / closing cylinder provided near the outlet 51a. 54b, and a bale holding cylinder 54a for binding provided near the binding position 54c.

The compressed PET bottle extruded from the extrusion cylinder 53 is extruded to a binding position 54c of a binding machine 54. A bale holding cylinder 54a for bundling is provided near the bundling position 54c, where the compressed PET bottle is pressed from above so as not to be restored, and is bound in that state.

The extruding cylinder 53 is set so as to extrude the PET bottles in the compressed state by a predetermined distance, so that the PET bottles in the compressed state of one block are separated by the predetermined distance by the binding machine. Each position is bound at several locations to obtain a waste bale as shown in FIG.

[0010]

However, in such a waste volume reducing machine, the waste is recovered to some extent when it is discharged from the compression chamber and moves to the binding position of the packing section. Extra weight must be applied so that the material is more compact than the final waste bundle.

For this reason, it is necessary to use a large-sized and costly cylinder as the main cylinder of the compression section, which causes an increase in the size and cost of the entire apparatus.

Further, since a cylinder is provided separately from the main cylinder in order to suppress the expansion of the waste discharged from the compression chamber, this also causes an increase in the size of the entire apparatus and an increase in cost.

Further, since the cylinder is used to suppress the expansion of the waste discharged from the compression chamber, a strong pressure is applied to a position where the cylinder is in contact with the surface of the compressed waste, As shown in FIG. 5, the veil of the obtained compressed waste has an uneven surface having a binding position as a concave portion. When the surface shape of the bale is uneven,
When piled up, problems such as instability and collapse easily occur.

Accordingly, an object of the present invention is to obtain a compact waste volume reduction device at lower cost than the conventional device. It is another object of the present invention to obtain a good waste volume reducing machine having a small bale finish shape of the obtained compressed waste.

[0015]

SUMMARY OF THE INVENTION In order to achieve the above object, a first aspect of the present invention is to bind a waste plastic bottle after compressing it.
A waste volume reduction equipped with a packing means that, Pettobo
Hopper means for holding and introducing the pressure into the compression chamber,
By moving downward from above in the compression chamber,
Main series with pressure plate for pressurizing and compressing PET bottles
And the compressed PET bottle to the outside of the compression chamber
Wherein a takeout provided under the side wall of the compression chamber, before for
Make a plastic bottle that is still compressed by the pressure plate.
To the outlet in the horizontal direction perpendicular to the direction of pressurizing the cylinder.
Communicates with the extrusion cylinder that pushes out and the outlet
And the pressure extruded by the extrusion cylinder
The compressed PET bottle is compressed until it reaches the packing means
And a passage member for holding the outlet.
A height-adjustable above the height of the cylinder, the passage
The material contacts the upper surface of the compressed PET bottle
Contact the upper surface and the lower surface of the compressed PET bottle
At least two opposing surfaces with the lower surface portion
It is proposed that the surface is adjustable corresponding to the height of the outlet .

[0016]

[0017]

[0018]

According to the first aspect of the present invention, the waste volume reducing machine includes a hopper means for holding a large number of wastes such as plastic bottles to be reduced in volume, a compression chamber, a main cylinder, an outlet, and an extrusion cylinder.
Compression means for receiving and compressing the waste from the hopper means , packing means for binding the compressed waste discharged from the compression means, and the compression means between the compression means and the packing means. And a passage member for conveying the waste compressed by the above to the packing means, and the outlet is
The height can be adjusted above the height of the extrusion cylinder.
The road member contacts the upper surface of the compressed PET bottle.
Upper surface to be compressed and lower surface of the compressed PET bottle
And at least two opposing surfaces with the lower surface contacting the
Is adjustable in accordance with the height of the outlet .

That is, wastes such as PET bottles are introduced into the compression means by the hopper means in predetermined amounts.
Here, it is compressed into a block shape. Thereafter, the block-shaped waste is discharged by the compression means and bound by the packing means.

At this time, a passage member including at least two surfaces of an upper surface facing the upper surface and a lower surface facing the lower surface of the compressed waste is provided between the compression means and the packing means. Thus, the block-like waste compressed in the compression section is restrained in the vertical direction by the upper surface and the lower surface of the passage member, and is conveyed to the packing means and bound.

Therefore, since it is not necessary to take into account that the waste expands due to the restoring force, it is not necessary to apply an extra load to the waste in the compression means. Can be. Therefore, it is possible to make the waste volume reduction device smaller and less costly than the conventional waste volume reduction device.

In addition, since the passage member including at least two surfaces serves to suppress the restoration of the compressed waste, it is not necessary to provide a special holding cylinder, so that the cost is reduced and the size is reduced. Waste volume reduction machine.

In addition, since the restoring force of the compressed waste in the compression section is suppressed by the two faces provided opposite to each other, the entire upper surface and the lower surface of the compressed waste can be reduced. , A uniform pressure is applied to the compressed waste, and the surface of the compressed waste has less unevenness and is good.

In particular, according to the present invention, the passage member is provided with a compression member.
And the upper part that contacts the upper surface of the plastic bottle
And the lower surface that contacts the lower surface of the
At least two opposing surfaces, the upper surface of which is
It is assumed that it can be adjusted according to the height .

Accordingly, as described above, a compact waste volume reduction machine can be obtained in which the surface of the obtained compressed waste is good with little unevenness and low cost, and the amount of waste to be compressed is reduced. It is possible to obtain a waste volume reducer capable of freely adjusting the height of the block of compressed waste according to the shape and shape of the waste.

[0026]

[0027]

[0028]

[0029]

[0030]

FIG. 1 is a schematic explanatory view showing an example of the configuration of the present invention. In FIG. 1, a hopper 5 constituting a hopper portion holds a large number of plastic bottles to be reduced in volume. The discharge port of the hopper 5 is opened to the compression chamber 1 described later, and the hopper 5 is controlled so as to introduce a predetermined fixed amount of plastic bottles into the compression chamber 1.

The compression section has a compression chamber 1 into which a plastic bottle is introduced from a hopper 5 and a compression chamber 1 which reciprocates up and down.
The main cylinder 2 for increasing and decreasing the volume of the PET bottle and compressing the PET bottle inside, an outlet for discharging the PET bottle compressed by the main cylinder 2, and the PET bottle in a compressed state are extruded toward the opposite outlet . Extrusion cylinder 3
Are provided.

Therefore, when a certain amount of plastic bottles are introduced into the compression chamber 1 from the hopper 5, the main cylinder 2 descends and the pressure plate 2a crushes the plastic bottles to a thickness that allows the plastic bottles to pass through the outlet. .

At this time, among the PET bottles in the compression chamber 1 that are in a tightly closed state, the air in the bottles is not compressed easily because only the air in the bottles is compressed, and an excessively large pressure is applied to crush the bottles. Therefore, a punching mechanism is provided in the pressing plate 2a.

This perforating mechanism is for perforating a waste container, such as a plastic bottle, which is hermetically sealed by a perforated member such as a needle projecting into the compression chamber 1. As a mechanism, a mechanism in which a plurality of needle members are provided on the pressurizing plate 2a and a plastic bottle in the compression chamber 1 is pierced every time the main cylinder 2 descends, but in this embodiment, the main cylinder 2 is predetermined. It is constructed so that it appears only when a force greater than the reference pressure is applied and drills waste.

More specifically, as shown in FIG.
A pressing wall portion 41 provided on the compression chamber 1 for pressing the pressing plate 2a against a waste, and a base 42 provided on the main cylinder side and fixing a compression spring member 42x and a plurality of needle members 42y.
When the main cylinder 2 applies a pressure greater than a predetermined reference pressure, the compression spring member 42x provided on the base 42 bends, and the needle member 42y passes through the pressing wall toward the compression chamber 1 side. To appear.

Accordingly, when there is no waste in a sealed state in the compression chamber 1, the pressing force by the main cylinder can be about the predetermined reference pressure, so that the needle member 42y does not appear on the compression chamber 1 side. When there is waste in the chamber 1 in a sealed state, the pressing force of the main cylinder becomes larger than a predetermined reference pressure.
A hole is made in the sealed waste that is exposed to the side. Thus, a certain amount of plastic bottle can be compressed into a block with a relatively small force.

In this manner, the pressure plate 2a crushes the PET bottle, and the thickness at which the PET bottle can pass through the outlet is provided.
Until, when it is pressed ulcers, compressed plastic bottle take-out
By extrusion cylinder 3 provided opposite the mouth is extruded
Will be discharged from the outlet .

The outlet is in communication with the packing portion, and the compressed PET bottle block discharged from the outlet is connected to a binding position of the binding machine 4 for binding the compressed PET bottle. It is transported and bound to 4c. In this embodiment, taken
A tubular passage 6 is provided from the outlet to the binding position 4c of the binding machine 4, and the PET bottle compressed by the tubular passage 6 is guided to the binding position 4c of the binding machine 4. .

That is, the block of the PET bottle in the compressed state is pushed into the cylindrical passage 6 by the extrusion cylinder 3 and the restoring force in the vertical and horizontal directions is suppressed. Binding position 4c of machine 4
Extruded and bound.

Therefore, when the compressed PET bottle block is transported to the binding position 4c, no partial pressure is applied to its surface, and the bale shape of the obtained compressed waste is shown in FIG. It becomes a good thing with few such irregularities.

[0041] In the present embodiment, where a passage member, Fig.
The upper surface 31 and the lower surface 32 as shown in FIG.
33i.

In this case , the upper surface 3 of the column members 33a to 33i
It is also possible to change the thickness of the obtained compressed waste by changing the fixed position of 1 in accordance with the amount and type of the waste to be compressed.

As described above, the waste volume reducing machine of the present embodiment is obtained because the pressing force of the compressed waste in the compression section is reduced by using the two surfaces provided opposite to each other. The finished shape of the bale of compressed waste is also good with little unevenness.

Further, as means for suppressing the restoring force of the waste, a cylindrical passage or a passage having an upper surface and a lower surface fixed by a column member is used, so that the structure is simple, low cost, and the whole apparatus is not only reduced. As a result, the waste volume reduction device becomes smaller than before.

[0045]

As described above, according to the present invention, since the structure is simple and the waste can be compressed with a small force, it is possible to obtain a compact waste volume reduction apparatus at a lower cost than the conventional apparatus as a whole. Also, the finished shape of the veil of the obtained compressed waste can be made favorable with little unevenness.

Furthermore, by a simple operation of changing the height position of the upper surface, it is possible to change the size of the bale of the compressed waste obtained according to the amount and type of the waste to be compressed.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing a first embodiment of a waste volume reducing machine of the present invention.

FIG. 2 is a schematic view of a compressed waste obtained by the waste volume reducer of the present invention.

FIG. 3 is another explanatory view of a passage member used in the waste volume reducing machine of the present invention.

FIG. 4 is a schematic cross-sectional view of a pressure plate with a perforation mechanism provided in the waste volume reducing machine of the present invention.

FIG. 5 is a schematic explanatory view of a conventional waste volume reducing machine.

FIG. 6 is a schematic view of a compressed waste obtained by a conventional waste volume reducer.

[Explanation of symbols]

1, 51 Compression chamber 51a Outlet 2, 52 Main cylinder 2a Pressure plate 3, 53 Extrusion cylinder 4, 54 Binding machine 4c, 54c Binding position 5, 55 Hopper 6 Cylindrical passage 31 Upper surface 32 Lower surface 33a-33i Column member 41 Pressing Wall 42 Base 42x Compression spring member 42y Needle member 54a Bale holding cylinder for binding 54b Cylinder for opening and closing gate

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B30B 9/30 B30B 9/32 101 B65B 27/12

Claims (1)

(57) [Claims] 1. Bundling after compressing waste PET bottles
Hopper means for holding a plastic bottle and introducing it into a compression chamber.
And compression by moving downward from above in the compression chamber.
A main unit equipped with a pressure plate that pressurizes and compresses indoor PET bottles
Before discharging the compressed cylinder and the compressed PET bottle out of the compression chamber
An outlet provided on the lower side wall of the compression chamber and a plastic bottle compressed by the pressure plate are removed.
Take out the outlet in the transverse direction orthogonal to the in-cylinder pressure direction.
And an extrusion cylinder that extrudes toward the outlet, and is provided in communication with the outlet.
Therefore, the compressed PET bottle that is extruded is used as packing means.
A passage member for maintaining the compressed state until the pressure reaches a height of the extrusion cylinder.
It is possible that the passage member is provided on an upper surface of the compressed plastic bottle.
The upper surface part in contact with the surface and under the compressed PET bottle
At least two opposing surfaces with the lower surface in contact with the
The upper part can be adjusted according to the height of the outlet
Waste volume reduction machine, characterized in that it is.