JPS636403B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a compressing and packing apparatus for compressing used paper such as old newspapers, old magazines, and cardboard boxes and binding the compressed paper with bands.

(Prior Art) In recent years, various compression packaging devices for collecting waste products have been proposed in order to achieve the purpose of resource conservation.
As part of this effort, the present applicant previously proposed a compression packaging device for waste paper, etc. (Japanese Utility Model Application Publication No. 54-97359), which has been successfully implemented.

This configuration consists of a rotating blade that separates binding strings for waste paper, etc., in the middle of a hopper for supplying waste paper, etc., a storage means consisting of an opening/closing lid that arranges and stores waste paper, etc. in a fixed amount in a passageway of a compression chamber, and the above-mentioned storage means. a compression means for compressing waste paper, etc. in the passageway using a pressing plate;
It consists of a binding device for binding the waste paper compressed in the compression chamber with a polypropylene band. Instead of conventionally binding waste paper with expensive iron wire, this technology uses polypropylene resin binding bands to enable automatic packaging, improving efficiency and reducing costs. Ta.

(Problems to be Solved by the Invention) However, in the above proposal, firstly, there is the generation of vibration and noise during operation caused by the driving means, and secondly, when the waste paper etc. fed from the hopper is piled up, The density is higher at the bottom, and the restoring force after compression is greater, causing the packaged product to deform after packaging, making it impossible to create a uniform product shape. Third, during compression, waste paper may get caught between the wall of the compression chamber and the press plate, preventing the press plate from operating smoothly.Fourth, the opening/closing lid at the bottom of the hopper has two identical shapes. There are problems such as waste paper sometimes getting caught in the joints.

(Means for Solving the Problems) Therefore, the present invention is characterized in that a corrugated shape 1a is formed on the inner surface of both side walls of the charging chamber 1 equipped with the hopper 2 above, to prevent waste paper from getting caught. At the bottom of the hopper 2, the outer surface is an arcuate surface, and the inner surface of one of the lids has a curved surface that can be joined to the outer surface of the other lid.
A lid for opening and closing the loading chamber consisting of a lid part 3 and a second lid part 4 is provided, and one side of the loading chamber 1 is movable by a driving means 8, and the shape of the front surface 7a extends downward. A tilted compression plate 7 is provided; this compression plate 7 is operably connected to a drive means 8 controlled by a relief circuit 10 and a blow circuit 11; the other side of the charging chamber 1; is equipped with a compression chamber 37 having a corrugated shape formed on the inner surface of both side walls to prevent waste paper from getting caught, and this compression chamber has a sliding door 38 that faces the compression plate 7 and moves inside the compression chamber. Furthermore, the compression chamber 37 is equipped with a binding device 41 for packing compressed waste paper or the like with a band.

(Function) In the present invention, the first lid part 3 and the second lid part 4 are kept closed, and waste paper, etc. is inputted from the hopper 2, and when a predetermined amount of waste paper, etc. has accumulated on the lid, both lid parts are opened. Drop waste paper, etc. into the input chamber 1. Both lids 3,
4 closes again to shut off the inside and outside of the charging chamber 1. Next, the drive means 8 is operated by the relief circuit 10 and the blow circuit 11, and the compression plate 7 is moved forward, and the charging chamber 1 is moved forward.
The waste paper and the like are moved into the compression chamber 37 by crossing the inside. At this time, the waste paper is compressed more strongly in the lower part, and because of the groove 1a, it moves without being caught between the input chamber side wall and the compression plate 7.
It works together with the sliding door 38 to compress waste paper and the like. When a predetermined amount of compressed waste paper and the like accumulated in the compression chamber 37 is reached, the binding device 41 is activated to bind the waste paper and the like.

(Example) Examples of the present invention will be described below with reference to the drawings.

As shown in the first and second figures, a used paper input chamber 1 is provided in the center of the apparatus, and a hopper 2 is provided above it. The bottom of this hopper 2 has 3rd and 4th
As shown in the figure, a lid for opening and closing the loading chamber 1 is provided, which includes a first lid part 3 and a second lid part 4. In other words, the lid has a first lid part 3 which is pivotally supported on the left side by a shaft 5.
and a second lid part 4 whose right side is pivotally supported by a shaft 5a, and the shafts 5, 5a are rotatable together with both lid parts, and this opening/closing drive is as follows:
Hydraulic cylinders 6, 6 provided outside the charging chamber 1
It is done by a.

Further, as shown in the second figure, a compression plate 7 is disposed on the left side of the charging chamber 1, and this compression plate 7 is connected to a ram 9 of a cylinder 8 constituting a driving means.
It is movable within the charging chamber 1. The front surface 7a of the compression plate 7 is an inclined surface whose downward portion is gradually advanced as shown in FIG.

The driving means for the compression plate 7 is provided with control means using a relief circuit 10 shown in the fifth figure and a blow circuit 11 shown in the sixth figure. That is, relief circuit 1
0 has oil passages 13 and 14 connected to hydraulic pumps 12 and 12a, and one oil passage 13 has a shockless valve 15 incorporated therein. An oil passage 16 branched from the oil passage 13 is led to the shockless valve 15 and connected to a relief valve 17, and an outlet pipe of this relief valve communicates with a tank 18. In addition, the shotless valve 15 has switching valves 19 and 1 for regulating the relief valve 17.
9a is incorporated.

The blow circuit 11 has oil passages 20 and 20a connected to a closed center type switching valve 21, and can selectively communicate with oil passages 22 and 22a. One oil passage 20 is the oil passage 1 of the relief circuit 10.
3, and the other oil passage 20a is led to a tank (not shown). An oil passage 20 and an oil passage 20a connected to the switching valve 21 are connected to the suction side (left side) and the discharge side (right side) of the cylinder 8, respectively. A shockless valve 23 is built into the oil passage 22, and a switching valve 24 is connected to this. Also, a relief valve 27 regulated by a switching valve 26 is provided in the oil passage 22a.
is built in, and this relief valve is connected to tank 2.
It leads to 8. A speed increasing circuit 29 is provided between the oil passages 22 and 22a to send the pressure oil discharged from the discharge side of the cylinder 8 from the oil passage 22a to the oil passage 22 and supply it again to the suction side of the cylinder 8. There is.

Further, an air cylinder 31 for supplying compressed air to the pressure accumulator 30 is provided in parallel with the cylinder 8 . The configuration of this air circuit is such that a cylinder ram 32 is connected to a compression plate 7 as shown in FIG.
Compressed air is stored in the pressure accumulator 30 by utilizing the reciprocating motion of the compression plate. An air supply line 33 is connected to the cylinder 31, and a valve 34 and a check valve 35 are provided to the air supply line 33. This compressed air is used for cleaning the charging chamber 1 and the compression chamber 7.

As shown in the second figure, a compression chamber 37 in which a compression plate 7 is movable is connected to the right side of the charging chamber 1. The right opening end of the compression chamber 37 can be opened and closed by the operation of rams 40, 40 of cylinders 39, 39, which are provided on the compression chamber, facing the compression plate 7, as shown in FIG. A sliding door 38 is provided for the purpose of Further, as shown in the fourth diagram, on the inner surfaces of both side walls of the compression chamber 37 and the charging chamber 1,
In order to prevent waste paper from getting caught between the inner surface of the side wall and the compression plate 7, a plurality of horizontal grooves 1a are formed.

A binding device 41 for packing compressed waste paper is provided around the compression chamber 37. The structure of this binding device 41 is also disclosed in the above-mentioned prior art, but as shown in the second figure, the compression chamber 37
Three slots 37a through which cable ties can pass horizontally are provided on both side walls of the door, and a guide passage 37b is provided at the left end of these slots 37a. Groove hole 37a...
A slot 38a is provided for the passage of a cable tie, which corresponds to the above. This slot 38a... has a guide passage 3.
8b... are arranged in series.

Furthermore, as shown in the second and seventh figures, the compression plate 7 is provided with slots 7b which are bored from the front surface and have a shape that matches and can correspond to the slots 37a of the compression chamber 37. Elongated guide passages 7C that can communicate with the guide passages 37b of the compression chamber 37 are provided in series with these slot holes 7b.

Further, as shown in the first and ninth figures, an H-shaped band insertion guide 42 is inserted in a direction perpendicular to the compression chamber 37.
... and a known binding machine 43 are provided in pairs, respectively. Legs 4 at both ends of band insertion guide 42
2a, 42b are slightly guide passages 37b..., 38
b..., and this band insertion guide 42 is driven by a cylinder 44 provided at the upper part of the compression chamber 37, and is inserted into both legs 42a.
...42b... can be freely inserted through the guide passages 37b, 38a.

Next, the operation of the present invention will be explained.

First, waste paper transported by a belt conveyor (not shown) is supplied to the hopper 2. At this time, both lids 3 and 4 are closed, so the waste paper is transported into the hopper 2 by these lids. stagnate. Next, the cylinders 7 and 7a are operated to open both lids 3 and 4, the waste paper is dropped into the input chamber 1, and both lids are closed again. Inside the input chamber 1, a compression plate 7 is moved by a drive cylinder 8, compressing the waste paper and moving it into the compression chamber 37. The control of cylinder 8 is the fifth
In the figure, the oil passage 13 of the hydraulic pump 12 is the oil passage 2 in Figure 6.
0, vibration and noise are absorbed by the shockless valve 15, and a shockless valve 23 is provided between the oil passage 22 and the cylinder 8 via the directional switching valve 21 to absorb vibration and noise. It's easing. Oil passage 2 on the compression side (right side) of cylinder 8
A speed increasing circuit 29 is provided between the oil passage 22a on the return side (left side) and the oil passage 22a on the return side (left side) as a circuit connecting the two, thereby improving the operational efficiency of the compression plate 7.

When the compression plate 7 and the sliding door 38 compress the waste paper in the compression chamber 37 and the compression plate retreats, both lids 3 and 4 are opened again and the next waste paper is supplied. and compress waste paper. At this time, since the front surface 7a of the compression plate 7 is formed with an inclined surface with the lower part protruding, the lower part is compressed more strongly. When the compressed waste paper reaches a predetermined amount, the binding device 41 is activated to bind the compressed waste paper.

The operation of the binding device 41 is based on the band insertion guide 42.
is advanced into the compression chamber 37 by operating the cylinder 44. At this time, one leg 42a of the band insertion guide 42 is inserted into the guide passage 7a of the compression plate 7, and the other leg 42b is inserted into the guide passage 7a of the sliding door 38. Here, the polypropylene band sent out from the binding machine 43 passes through the band insertion guide 42 with force, and the end of the band returns to the binding machine 43. After that, when the waste paper is tightened by the binding machine 43, the band slips out from the band insertion guide 42, and further slips out from the compression plate 7, the side wall of the compression chamber 37, and the slots 7b and 38a of the slide door 38, and the compressed waste paper wrapped around it. Finally, after the overlapping parts of the band are welded, the ends of the band are cut to complete the packaging of the waste paper.

(Effects of the Invention) As described above, according to the present invention, firstly, by employing a relief circuit and a blow circuit as the driving means of the compression plate, vibration and noise during work can be reduced, and secondly, vibration and noise during work can be reduced. The slope of the plate allows the lower part to be strongly compressed, making it possible to make the shape of packed waste paper and other products uniform.Thirdly, by creating a corrugated shape on the inner surface of the input chamber and the compression chamber, the waste paper can be easily compressed. This prevents the compressor from getting caught, contributing to improved work efficiency.Fourth, since the two lids are closed during compression, it contributes to preventing environmental pollution due to the generation of dust, which has significant effects. be.

[Brief explanation of the drawing]

Fig. 1 is a plan view, Fig. 2 is a sectional view taken along the line of Fig. 1, Fig. 3 is a side view for explaining the relationship between the charging chamber, the lid, and the hopper, and Fig. 4 is an enlarged sectional view of the same as above.
5 and 6 are circuit diagrams of the relief circuit and the blow circuit, FIG. 7 is an enlarged sectional view of the compression plate, FIG. 8 is a circuit diagram of the pressure accumulator, and FIG. 9 is a side view of the binding device. DESCRIPTION OF SYMBOLS 1... Loading chamber, 1a... Groove, 2... Hopper, 3... First lid part, 4... Second lid part, 7... Compression plate, 7a... Front surface, 8... Driving means, 10... Relief circuit, 11
...Blow circuit, 38...Sliding door, 41...Binding device.

Claims (1)

[Scope of Claims] 1. A charging chamber 1 for waste paper, etc., in which a plurality of wave-shaped grooves 1a are formed on the inner surfaces of both side walls; a hopper 2 for charging waste paper, etc. into the charging chamber; A lid consisting of a rotatable first lid part 3 and a second lid part 4 for opening and closing the bottom, and a lid provided on one side of the loading chamber 1 and movable within the loading chamber by a drive means 8. , a compression plate 7 which is inclined with the lower part of the front surface 7a extended.
and a relief circuit 10 and a blow circuit 11 for controlling the driving means 8, which are connected to the other side of the charging chamber 1, and have inner surfaces of both side walls formed in a corrugated shape, and are opposed to the compression plate 7. A compression packing device for waste paper, etc., comprising: a compression chamber 37 provided with a sliding door 38; and a binding device 41 for packing waste paper compressed in the compression chamber.