JPH07251299A - Compactor and waste compressing method - Google Patents

Abstract

PURPOSE:To uniformly make the compression force, to miniaturize the device and needlessly make working to open a stopper of a PET bottle or to drill a spray can by connecting a scissor link and a piston cylinder. CONSTITUTION:An upper end of a telescopic body 24 which connects single bodies of sizer link 25 that two link members 25a are crossed and its crossing part is connected freely rotating in the up and down direction in a multi-stage is supported by a prescribed height on the upper side of the compression room, and together a compressing plate 32 is attached on the down end and the compression part 28 is made. Further, a cylinder part 22 of the compression cylinder and a piston rod 23 are joined with pivot and the compression part is composed. The waste is pre-compressed with the action of the compression cylinder and the extension of the telescopic body, a piercing mechanism separately installed is acted, the waste is pierced, the piercing members are pulled in after piercing with the compressing plate 32, then, the piston rod 23 is extended further and the waste is really compressed. Therefore, the compressing force is uniform and the device can be miniaturized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compactor for compressing and reducing the volume of waste such as synthetic resin containers for storing beverages such as juice and water, empty cans and various spray cans, and a method for compressing the waste.

[0002]

2. Description of the Related Art Conventionally, as a container for storing beverages,
In addition to paper packs, glass bottles have been used, but in recent years,
With the increase in size of containers, containers made of polyethylene terephthalate (PET), which have the advantage of being lightweight, so-called PET bottles have become the mainstream. Unlike glass containers, PET bottles are currently discarded as they are because they are not washed and reused after collection. Discarded PET bottles are separately collected from other wastes, and a certain amount of them are collectively compressed and then incinerated or discarded. On the other hand, spray cans used as containers for paints, lubricants, deodorants, insecticides, hair styling products, etc. are also discarded after being compressed, or melted and used again for the production of cans and other metal products. It's being used. A compression volume reducer, a so-called compactor, is used for the compression treatment of such PET bottles and spray cans. As shown in FIGS. 15 and 16, the compactor has a compression plate (42) attached to the lower end of an expansion / contraction frame (41) that expands and contracts by the rotation of a screw feed mechanism (39) driven by a motor (40). It is known that the waste in (43) is compressed (Japanese Utility Model Publication 58-111196, Japanese Utility Model Publication 55-336).
77, JP-A-55-26134). Further, it is known that a hydraulic cylinder or an air cylinder is fixed above a compression chamber and a waste is compressed by a compression plate attached to the tip of a piston.

[0003]

SUMMARY OF THE INVENTION A compactor using an extendable frame that moves up and down through the conventional screw feed mechanism is
There is a problem that the pressing force is not constant over the entire compression stroke. That is, the first part of the stroke is
Since the applied pressure is small and gradually increases as the expandable frame expands, uniform compression cannot be performed. Further, if the amount of waste to be compressed exceeds a certain amount, it may not be possible to compress. On the other hand, a compactor using a piston-cylinder has the advantage that the compression force is uniform, but has the disadvantage of increasing the size of the device because it requires a piston having a long compression stroke and a cylinder to accommodate it.

Further, in a plastic bottle, even if compressed, air in the plastic bottle is difficult to escape, which causes the compressed waste to become bulky. On the other hand, spray cans may explode if they are forced to compress residual gas. In order to eliminate these drawbacks, it is conceivable to open the plastic bottle stopper manually or to open a hole in the spray can, but in view of the fact that a large amount of waste must be treated in a short time, Not practical.

Further, the conventional compactor has a structure in which the waste is manually put into the compression chamber each time the compression process is performed, so that the work efficiency is poor.

Further, the conventional compactor has a limitation in processing capacity because it repeatedly performs the compression processing of waste in a single compression chamber.

Therefore, the object of the present invention is that the compression force is uniform and the size of the apparatus can be reduced. Further, it is not necessary to open the cap of the PET bottle or to open a hole in the spray can. It is an object of the present invention to provide a compactor and a waste compaction method capable of improving efficiency and treatment capacity.

[0008]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned conventional problems by organically connecting a scissor link and a piston cylinder and canceling out their defects. That is, the structure means that the upper end of an expandable body in which a single scissor link in which two link members are intersected and the intersection is rotatably connected is vertically connected in multiple stages is supported above the compression chamber at a predetermined height. The compression part having the compression plate on the bottom is attached to the lower end thereof, and the cylinder part of the compression cylinder and the piston rod are pivotally mounted between the intersecting parts of the upper and lower scissor links.

Further, a piercing mechanism for allowing the piercing member for piercing the waste to come in and out of the compression plate by a predetermined driving means is provided on the upper part of the compression plate.

Further, a waste accommodating chamber having an opening / closing gate for discharging the waste is provided above the compression chamber.

Further, the apparatus further comprises a plurality of compression chambers, the waste storage chambers corresponding to the respective compression chambers, and a compression unit having the expandable body, the compression plate, and the compression cylinder.
The compression unit is provided so as to be movable on each compression chamber.

The method of compressing waste which can solve the above-mentioned various problems is to operate the compression cylinder so that the piston rod and the cylinder part thereof expand and contract, and the expandable body expands. The compression plate pre-compresses the waste, the piercing mechanism operates and the piercing member pierces the pre-compressed waste and then retracts from the compression plate, and the piston rod further extends. The main purpose is to compress the pre-compressed waste.

[0013]

[Operation] When the compression cylinder operates and its piston rod expands, the scissor link to which the piston rod is attached receives a force that pushes it down in the direction of the compression chamber. In response to this, the piston rod tries to rise in the direction opposite to the extension direction of the piston rod, that is, to move upward in the compression chamber, so that the scissor link to which the cylinder is attached exerts a force to push it up in the compression chamber. Therefore, the entire stretchable body is stretched, and its stretching force is proportional to the stretching force of the piston rod and the cylinder part, and is stretched with a uniform stretching force from the start of stretching, so that the waste is evenly compressed from the start to the end. It can be compressed by pressing force. Moreover, since the compression cylinder itself moves up and down as the expandable body expands and contracts, the overall height of the device can be reduced.

Further, the piercing mechanism provided on the upper part of the compression plate is driven to project the piercing member from the compression plate, and the waste is pierced to remove residual air or gas from the waste, thereby compressing the waste. Can reduce the bulk of the generated waste,
When the piercing member is driven and the piercing member is retracted from the compression plate, the waste stuck in the piercing member can be removed by the compression plate.

Further, if a waste storage chamber having an opening / closing gate for discharging the waste is provided above the compression chamber, the waste can be easily put into the compression chamber at any time by opening / closing the gate. As a result, work efficiency is improved.

Furthermore, a plurality of compression chambers and a waste storage chamber corresponding to each compression chamber are provided, and a compression unit having the expandable body, the compression cylinder and the compression plate can be moved on each compression chamber. In this case, while the compression processing is being performed in one compression chamber, the waste can be put into the other compression chamber to prepare for compression, so that the work efficiency and the processing capacity can be improved. it can.

By operating the compression cylinder, the piston rod and the cylinder portion expand and contract, the expandable body expands, the compression plate precompresses the waste, and the piercing mechanism operates. The piercing member pierces the pre-compressed waste,
Residual air and gas in waste can be removed. Also,
Since the piercing member retracts from the compression plate after the piercing, the waste stuck in the piercing member can be removed by the compression plate. Further, after the pre-compression and the piercing, the piston rod further extends to main-compress the pre-compressed waste, so that the volume of the waste is further reduced.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of the compactor of the present invention,
2 is a front view, FIG. 3 is a right side view, and FIG. 4 is a rear view.
The compactor (1) is provided with a hydraulically driven compression unit (2) on the compression chambers (34), (34) arranged side by side, and a hopper (12), ( 12) are provided respectively. The compression unit (2) is, as shown in FIG. 5, a rail (17) having a U-shaped cross section provided on both compression chambers.
It is movably installed by accommodating a roller (17a) therein. Each hopper (12) is provided with a gate (13) for discharging the PET bottle into the compression chamber,
Each gate is opened through a control cable (14) as shown in FIG. 6 when a pedal (15) (shown in FIG. 2) provided at the lower center of the front of the compactor is stepped on. Each compression chamber (34) is provided with a door (9) which is opened and closed by an opening and closing lever (10) so that a compressed PET bottle can be taken out. (3) is the cover of the compression unit (2), (4) is the emergency stop switch, (5) is the compression switch, (6) is the packing switch, and (7) is the compression unit.
A cable holding member that holds a hydraulic cable or the like that connects (2) and the hydraulic unit (19) shown in FIG. 3, and is flexibly bent according to the movement of the compression unit (2), and (8) is a compression unit.
The (2) is a moving lever that is used as a handle when the rail is fixed to the rail (17), and (20) is a control panel. (11), ..., (11) on the door of Fig. 2 and the back of the compression chamber of Fig. 4
Is a slit formed for passing a string for packing the compressed waste from the door to the back side through the compression chamber.

Next, the structure of the compression unit (2) will be described.
8 to 12 are explanatory views of the inside of the compression unit (2).
As shown in Fig. 9, in the casing (2a) of the compression unit (2), a pair of opposing elastic bodies (24), (24) are rotatably supported by rollers (27) at their upper ends. , (27) are accommodated in a rail (2b) having a U-shaped cross section formed on the upper surface of the casing (2a), so that they are supported above the compression chamber (34) at a predetermined height. Each elastic body (24) is a plate-like link member (25a)
A scissor link (25) that is rotatably combined in an X-shape at its intersection, and the tip ends of the scissor links (25) are connected in two upper and lower stages
It is configured by rotatably supporting by. The upper ends of the opposing elastic rollers (27) are rotatably supported by connecting shafts (26). A compression cylinder (21) accommodating a piston rod (23) that expands and contracts in the compression direction is disposed in the cylinder part (22) between the expandable bodies (24) facing each other. Cylinder part (22)
Is fixed to the mounting frame (26a), and the mounting frame (26a) is pivotally supported by the shaft (25c) at the intersection (25b) of the upper scissor links. Also, the tip of the piston rod (23) should be
It is fixed to b), and the mounting frame (26b) is pivotally supported by the shaft (25e) at the intersection (25d) of each scissor link below.

A box-shaped compression part (28) having a compression plate (32) formed on the bottom surface for compressing a PET bottle at the lower end of each elastic body (24).
However, as shown in FIG. 12, the roller (27) at the lower end of each elastic body has a U-shaped cross section formed at the upper edge of the compression part (28).
It is mounted by being housed in (28a). A perforated plate (30) having a plurality of needles (31) vertically suspended in a grid pattern is provided in the compression section (28) so as to be vertically movable. Perforated plate
The (30) can be moved up and down by expanding and contracting the piston rods (33b) of the two punching cylinders (33) provided on the upper surface of the compression section (28). Each needle (31) is adapted to be projected from and retracted from the bottom surface of the compression plate (32) through a hole (32a) formed in the compression plate (32). As shown in the plan view of FIG. 11, since the punching cylinder (33) is provided diagonally to the compression section (28), the punching plate (when punching the PET bottle with the needle (31) ( 30) Two guide parts to equalize the force applied to
(29) is provided on another diagonal line. As shown in FIG. 12, the guide rod (29a) that constitutes the guide portion (29) is provided on the compression plate (32), the punching plate (30) and the upper surface (28) of the compression portion (28).
The guide rod (29a) is inserted into the pipe (29b) that is vertically installed through the hole (b) and is vertically installed on the hole plate (30). Accordingly, the pipe (29b) moves up and down along the guide rod (29a).

FIG. 13 is an explanatory diagram of a hydraulic circuit used in this compactor. Reference numeral (36) denotes a hydraulic pump, which includes a motor (36a), a pump unit (36b) driven by the motor (36a), and a pump unit (36c) for fast feed. Each pump is connected to the compression cylinder (21) via the oil passages (Y1) and (Y2) via the solenoid valve (37), and to the oil passages (Y3) and (Y4) via the solenoid valve (38). Via each of the perforating cylinders (33). (LS1) is a limit switch that detects the raised position of the cylinder (22), (LS2) is a limit switch that detects the lowered position, and (LS3) is the pipe of the guide (29).
Limit switch to detect the upper limit position of (29b), (LS4)
Is a limit switch for detecting the lower limit position of the pipe (29b), (LS5) and (LS6) is a limit switch for detecting the opening and closing of the door (9), and (LS7) is a limit switch for detecting the lowering position of the compression section (28). A switch, (PS1) is a pressure switch that detects the oil pressure in the compression cylinder (21) to detect the end of pre-compression, and (PS2) is a pressure switch that detects the oil pressure in the compression cylinder (21) and the end of main compression. The pressure switches for detecting are respectively shown.

Next, the operation of this compactor will be described with reference to the hydraulic circuit of FIG. 13 and the flow chart of FIG. It is assumed that the compression unit is located above the compression chamber on the left side of the drawings as shown in FIGS. 1 and 2, and the respective expansion and contraction bodies in the compression unit are in a contracted state as shown in FIG. First, the packing string is passed through each slit (11) of the door (9) through the compression chamber and into the slit (11) on the back surface. Turning the start switch (20a) of the control panel (20) shown in FIG. 4 to the start position activates the hydraulic circuit (step 1 (S1)), and depressing the left pedal (15) (S2) causes Gate of hopper (12)
(13) opens via control cable (14) (S
3), the plastic bottle in the hopper falls into the compression chamber (34) (S4). At this time, if the PET bottle does not stick to the gate or slip off from the slope of the hopper (12a in FIG. 6), stepping on the fall defect release pedal (16) shown in FIG. The push-up rod (18a) of the fall defect release mechanism (18) rotates around the fulcrum (18b) in the direction of the slope (12a), and the tip of the push-up rod (18a) protrudes from the hole formed in the slope. Push up the plastic bottle on the top to release the fall defect. After confirming that the PET bottle has reached a certain amount, press the compression switch (5) (S5), the hydraulic pump (36) will operate, and the solenoid valve (37) of the hydraulic circuit will open and operate. Oil is delivered to the compression cylinder (21) via the oil passage (Y1), and the piston rod (23) of the compression cylinder (21) starts extension.

At this time, the lower scissor links (25), (25)
Is rotatably supported by the tip end portion of the piston rod (23) via the mounting frame (26b), so that the piston rod (23) is pushed down toward the compression chamber. On the other hand, the cylinder part
(22) is pushed up by the reaction of the extension force of the piston rod (23), but the upper scissor link (25), (25)
Is rotatably supported by the cylinder part (22) through the mounting frame (26a), and thus is pushed up by the rise of the cylinder part (22). In this way, the lower scissor link is pushed down by the extension of the piston rod, and the upper scissor link is pushed up by the rise of the cylinder part, so that the entire expandable body is extended and the compression part (28) is lowered. At this time, the rollers (27), (27) attached to the upper ends of the elastic bodies (24) move while rotating toward the rail center in the rail (2b) formed on the upper part of the casing (2a). However, the rollers (27) and (27) attached to the lower ends of the elastic bodies (24) move while rotating toward the rail center in the rail (28a) formed at the upper part of the compression section (28). To do. In this way, the compression part (28) attached to the lower end of each scissor link descends inside the compression chamber (34) along its inner wall (34a), and the compression plate (32) pre-compresses the PET bottle. (S6).

The pressure force of this pre-compression is detected as a change in hydraulic pressure by the pressure switch (PS1) connected to the oil passage (Y1), and when the pressure value preset in the sequencer is reached, the solenoid valve (38) Is opened, and the hydraulic oil
It is delivered to the perforating cylinders (33), (33) via 3), and each piston rod (33b) is extended. As a result, the punching plate (30) descends, and the needles (31), ..., (31) suspended on the back surface of the punching plate are punched in the compression plate (32) (32
a), ..., (32a) penetrates and protrudes from the compression surface of the compression plate (S7), and the pre-compressed PET bottle is pierced (S).
8). This allows the residual air in the plastic bottle to be removed. Then, when the lower limit position of the pipe (29b) is detected by the limit switch (LS4), the descent is stopped, the descent is started, and the needle (31) is retracted into the compression plate (S9). At this time, the compressed product stuck in the needle falls in a form in which the needle is pulled out by the compression plate. Next, the hole punching cylinder (33) stops operation when the upper end of the pipe (29b) of the guide part (29) is detected by the limit switch (LS3) and the needle stops.
(31) returns to the original position. When the punching cylinder (33) is activated, the timer is activated, and if the limit switch (LS4) does not turn on after a certain period of time, the punching cylinder (33) contracts and the piston rod (33b) Since it returns to its original position, even if the needle hits hard waste, the needle will not bend or break, and work will not be stagnant.

Then, the compression cylinder (21) operates again, the piston rod (23) further extends, and the compression plate (32) performs the main compression of the pre-compressed PET bottle. This main compression force is used as the hydraulic pressure of the compression cylinder (21) by the pressure switch (PS
2), the compression is stopped when the preset pressure value is reached, the piston rod (23) contracts, the cylinder part (22) moves upward, and both expansion and contraction bodies (2
4) shrinks. Then, when the limit switch (LS1) for detecting the upper limit position of the cylinder portion detects the cylinder portion, the operation of the compression cylinder is stopped. The pump part (36c) for rapid feed operates at the same time as the pump part (36b) in order to quickly reach the upper end of the waste, but pre-compression or main compression is started and its addition When the pressure exceeds the set value, the relief valve closes and the working oil is returned to the tank.
b). It is also possible to simultaneously operate the compression cylinder and the punching cylinder to simultaneously perform precompression and piercing.

Next, the moving lever (8) is pulled up to the front to unlock it, and the moving lever (8) is grasped to compress the compression unit (2).
Is moved onto the compression chamber (34) on the right side of the drawing. Then, depress the pedal (15) on the right side to open the gate (13) of the hopper (12) on the right side, drop the plastic bottle into the compression chamber (34) on the right side, and press the compression switch (5) to perform the same compression as above. Do the process.
In this way, the compression process in the left and right compression chambers is regarded as one cycle, and is repeated for several cycles, for example, 4 to 5 cycles. Then, when the compressed PET bottles are accumulated, the lowest point position of the compression plate (32) at the time of compression becomes high, and the limit switch (LS2) is not turned on. When compression is performed in this state and the pressing force of the compression cylinder reaches a predetermined set value, this is detected by the sequencer, a predetermined buzzer sounds and the operator is notified of the packed state, and the compression cylinder (21 ) Rises and enters the packing standby state. Next, move the compression unit (2) once onto the compression chamber (34) on the opposite side, pass the packing string through the slit (11) on the door (9) through the slit (11) on the back side of the compression chamber, and compress again. Put the unit (2) back on the compression chamber. And packing switch
When you press (6), the compression cylinder (21) moves down and the compression plate
(32) does the main compression again and stops. Next, in the main compression state, the string passed through the slit first and the string passed after compression are knotted and packed, and the packing switch (6) is pressed to raise the compression cylinder (21), and the other Opening lever (10) after packing through the same packing process in the compression chamber
Open each door (9) by operating, and carry out the packed compressed product with a cart. As shown in FIGS. 2 and 7, since a plurality of return preventing claws (9c) are attached to the inner wall surface of each compression chamber (34), the compressed product (35a) is not removed after the compression plate is raised. Even if an attempt is made to restore the original volume, it is locked by the detent pawl to prevent expansion. Also, the return prevention claw (9c) is pressed down by the compression plate during compression,
It is housed in the cover (9a) with the mounting shaft (9d) as a fulcrum, and when the compression plate rises, it is returned to its original position by the spring (9b).

Thus, according to this compactor,
Since the structure expands and contracts the expandable body by the compression cylinder attached to the expandable body, it can be compressed with a constant pressing force from the beginning to the end of the expansion and contraction stroke, and the roller at the bottom of each expandable body where the pressing force acts. Is always symmetrical with respect to the extension direction of the piston rod, and the pressing force is evenly applied to the entire compression plate, so that uniform compression can be performed on the compression surface. Moreover, since the compression cylinder is attached between the two expandable bodies and moves up and down as the expandable body expands and contracts, the overall height of the compactor can be designed to be low. In addition, since pre-compression is performed before main compression and the needle is pierced into the PET bottle to remove residual air, manual work to open the stopper before compression is unnecessary, and the volume of the compressed product is further reduced. be able to. Further, since the compression chambers are arranged side by side and the compression unit can move on each compression chamber, the processing capacity is larger than that of a single compression chamber. Furthermore, since the stroke length and the storage width at the time of contraction can be easily changed only by changing the length of the link member of the scissor link, the size of the compression chamber can be easily changed.

In the above embodiments, the case of compressing a PET bottle has been described, but it can also be used for compressing other wastes such as spray cans that need to be perforated before compression. Of course, you can When compressing waste that does not require perforation,
It is also possible to stop the operation of the piercing cylinder and perform only compression by the compression plate without the needle protruding from the compression plate. Further, each cylinder can be driven by air instead of hydraulically. Furthermore, the number of compression chambers and hoppers can be three or more, or the compression unit can be driven by a motor.

[0029]

According to the present invention, waste can be compressed with a uniform pressure from the start to the end of compression. Moreover, since the compression cylinder is attached to the expandable body and moves up and down as the expandable body expands and contracts, a long stroke of the piston rod is not required, and the device can be downsized. Moreover, since the residual air and gas of the waste can be removed by the piercing mechanism, the volume of the compressed waste can be reduced, and the danger of explosion of the spray can and the like is eliminated. Further, by providing the hopper having the opening / closing gate on the compression chamber, it becomes easy to throw the waste into the compression chamber. Furthermore, by providing a plurality of compression chambers and the waste storage chamber corresponding to each compression chamber, and disposing the compression unit movably on each compression chamber, it is possible to improve the processing capacity.

[Brief description of drawings]

FIG. 1 is an external perspective view of a compactor according to the present invention.

FIG. 2 is a front explanatory view of the compactor according to the present invention.

FIG. 3 is a right side view of the compactor according to the present invention.

FIG. 4 is a back surface explanatory view of the compactor according to the present invention.

FIG. 5 is an explanatory diagram of a rail for moving the compression unit.

FIG. 6 is an explanatory diagram of an opening / closing gate of a hopper.

FIG. 7 is an explanatory diagram of a return prevention pawl.

FIG. 8 is an explanatory diagram of the inside of a compression unit.

FIG. 9 is an explanatory diagram showing a state in which the stretchable body is extended.

FIG. 10 is an explanatory diagram showing a state in which the stretchable body is contracted.

FIG. 11 is an explanatory plan view of a compression unit.

FIG. 12 is a left side view of the compression unit.

FIG. 13 is an explanatory diagram of a hydraulic circuit.

FIG. 14 is a flowchart showing a method of treating waste according to the present invention.

FIG. 15 is a front explanatory view of a conventional compactor.

FIG. 16 is a plan view of a conventional compactor.

[Explanation of symbols]

1 ... Compactor, 2 compression unit, 2a casing, 2b rail, 3 cover, 4 emergency stop switch, 5 compression switch, 6 packing switch, 7 cable holding Member, 8 ... Movement lever, 9 ...
.Doors, 9a ... Covers, 9b ... Return prevention claws, 9c ...
Spring, 10 ... Opening / closing lever, 11 ... Slit, 12 ...
・ Hopper, 12a ・ ・ Slope, 13 ・ ・ Gate, 14 ・
・ Control cable, 15 ・ ・ Pedal, 16 ・ ・ Failure release pedal, 17 ・ ・ Rail, 18 ・ ・ Fall release mechanism, 18a ・ ・ Pushing rod, 18b ・ ・ Support point, 1
9-hydraulic unit, 20-control panel, 20a-start switch, 21-compression cylinder, 22-cylinder part, 23-piston rod, 24-extendable body, 25
..Scissor links, 25a..Link members, 25b, 2
5d ··· intersection, 25c, 25e · · shaft, 26 · · connecting shaft, 26a, 26b · · mounting frame, 27 · · roller, 2
8 ··· Compressed part, 28a ··· Rail, 28b ··· Upper surface, 2
9 ... Guide part, 29a ... Guide rod, 29b ...
Pipe, 30 ... Hole punching plate, 31 ... Needle, 32 ... Compression plate, 33 ... Hole punching cylinder, 32a ... Hole, 33a
..Cylinders, 33b..Piston rods, 34 ..
Compression chamber, 34a ... inner wall, 35 ... PET bottle, 35
a..Compressed material, 36..hydraulic pump, 36a..motor, 36b, 36c..pump part, 37,38..solenoid valve, 39..screw feed mechanism, 40..motor, 41..expandable frame , 42 ... Compression plate, 43 ... Compression chamber, LS1 to LS7 ... Limit switch, PS1, P
S2 ... Pressure switch, Y1 to Y4 ... Oil passage.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location B30B 1/26 D B65F 1/10

Claims (5)

[Claims] 1. A compactor for compressing and reducing the volume of waste in a compression chamber by means of a compression plate, wherein a scissor link unit having two link members intersecting each other and rotatably connected at the intersecting portions is vertically extended in multiple stages. The upper end of the compression cylinder is supported at a predetermined height above the compression chamber, the compression plate is attached to the lower end of the compression chamber, and the cylinder part of the compression cylinder and the piston rod are pivotally mounted between the intersections of the upper and lower scissor links. Become a compactor. 2. The compactor according to claim 1, further comprising a piercing mechanism provided on an upper portion of the compression plate for allowing the piercing member for piercing the waste to come in and out of the compression plate by a predetermined driving means. 3. The compactor according to claim 1 or 2, wherein a waste storage chamber provided with an opening / closing gate for discharging waste is provided above the compression chamber. 4. A compression unit comprising a plurality of said compression chambers and said waste storage chamber corresponding to each compression chamber, wherein a compression unit having said expansion member, compression plate and compression cylinder is movable on each compression chamber. The compactor according to claim 1, 2 or 3, which is provided. 5. When the compression cylinder is operated, the piston rod and the cylinder portion of the compression cylinder are expanded and contracted, the expansion and contraction body is expanded, the compression plate precompresses waste, and the piercing mechanism is operated. The piercing member pierces the pre-compressed waste and then retracts from the compression plate, and the piston rod is further extended to main-compress the pre-compressed waste.