JP2002066791A - Compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rapid opening prevention mean for outlet door of a compressor. SOLUTION: This compressor has a double lock mechanism, that is, a first rock mechanism comprising a combination between a vertically sliding rock bar attached in the right end of a discharge door 4a and a section stop concavity installed in a main body side of the compressor, and a second rock mechanism comprising a combination between a push up rod 19 which is contained in the left side of the discharge door 4a and is always forced upward by a spring 19a, and a push in hole 20 which is made in the top of an exit mouth. In this lock mechanism, the first lock mechanism and the second lock mechanism are canceled in such order as when a control lever 22 is turned about 45 degrees counterclockwise, the rock bar is pushed up by a plate cam 23 and when the counter lever 22 is turned additional 45 degrees counterclockwise, the push up rod 19 is lowered by chains 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compression apparatus for compressing a processed product such as a PET bottle or cardboard waste into a bale.

[0002]

2. Description of the Related Art An apparatus for compressing a bale is provided with a discharge door for taking out a bale formed by compression.
This discharge door is provided with a lock mechanism to prevent it from opening due to the internal pressure acting during pressurization. However, when the bale is taken out, the bale still has a restoring force that tends to expand. If you remove, the discharge door will be opened at a stretch as if it were flipped. Therefore, in the conventional device, for example, when closing, the hook is loosely hooked on the bar, and the lever is strongly pulled by the lever operation to lock the bar. A mechanism for removing the hook from the bar is provided on the side of the apparatus to prevent the discharge door from opening suddenly. Also, as described in JP-A-8-309591,
In a fully automatic apparatus in which a compressor and an automatic binding machine are combined, a sliding discharge door is adopted so as not to interfere with the cylindrical passage, and the discharge door is required to cope with a large internal pressure. The opening and closing of the is automated.

[0003]

In the former device, since a lock mechanism is provided on the side surface (the side opposite to the hinge mounting side), other machines such as a binding machine are assembled on the surface. In addition, when opening and closing the discharge door, the door must be moved to the side to unlock and hang, and to the front to close and open. There is no problem because the latter device is fully automatic, but if only the compressor is used alone, it must be said that measures for preventing the discharge door from opening suddenly are insufficient.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a compression apparatus which is designed to prevent sudden opening of a discharge door. The compression apparatus has an input port and an output port. In the compressor for compressing and molding the processed material into a bale, a discharge door having first and second lock means is provided at the discharge port, and the first and second locks are rotated by turning an operation lever. This means that the means can be sequentially released. The first and second locking means are provided on a door side, and are provided on a main body side of the device, and a locking member that protrudes and disappears in a direction upward or downward from a door surface area. It is desirable to configure with a locking portion to be locked.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a compression apparatus according to the present invention, which is a compression packing apparatus in which a bundling machine is integrally assembled with the compression apparatus, will be described with reference to the drawings. 1, 2 and 3 show the whole of the compression packing apparatus as viewed from the front, side and top, respectively, and FIG. 4 shows a side view in which a part is shown in cross section. Reference numeral 1 denotes a compressor corresponding to the compression device of the present invention. A compression chamber 2 is formed inside the main body of the compressor 1 as shown in FIG. Is provided with a discharge port 4. In the input port 3,
A vertical opening type opening door 3a that opens forward with the lower edge as a fulcrum,
Further, the discharge port 4 is provided with a horizontally opening discharge door 4a that opens forward with the left edge as a fulcrum. When the door is closed, the door is fitted into the opening, and the front surface of the compressor 1 is flat. It is becoming. In the compression chamber 2, a press platen 6 which is raised and lowered while maintaining a horizontal posture by a press cylinder 5 and guide cylinders 5a, 5a provided upright on the compressor 1 is incorporated.

An extruder 7 is connected to the rear side of the compressor 1. The extruder 7 has an extruding cylinder 8 horizontally arranged at the center.
An extruding plate 9 attached to the tip of the piston rod 8a in a vertical posture is provided with a discharge port 4 from the rear wall position of the compression chamber 2.
It is incorporated so that it can move forward and backward between positions protruding outward,
A plurality of dogs 10a, 10a,... Attached to a guide rod 10 which is arranged in parallel with the piston rod 8a and moves forward and backward integrally with the pushing plate 9 is positioned at a position where the pushing plate 9 advances and retreats. The contact is detected by contacting the limit switch 11 attached to the main body.

A bundling machine 12 is provided adjacent to the side of the discharge port 4 of the compressor 1, and a band guide 13 attached to the bundling machine 12 is positioned at a position just before the band 4 comes out of the discharge port 4. The band 15 unreeled from the reel 14
It is lowered right below from the upper part of the right side edge, and from there, it is guided upward from the lower part on the left side through the lower side, and the band outlet 13a
It is arranged along the circumference of the discharge port so as to be caught from the head. Bale pressing guides 16 are provided above and below the discharge port 4 from the inner peripheral edge thereof to the outside.

[0008] The discharge door 4a is equipped with a double lock mechanism comprising a first lock means and a second lock means. As shown in FIGS. 5 and 6, the lock mechanism includes, as first lock means, a vertically slidable lock bar 17 which is a lock member externally attached to the right end of the discharge door 4 a, and a main body of the compressor 1. A structure composed of a combination of locking recesses 18 and 18 ', which are locking portions provided on the side, has a push-up rod 19 which is a locking member incorporated on the left side of the discharge door 4a as a second locking means. , Each having a combination with an insertion hole 20 as a locking portion provided at the upper part of the discharge port 4. The locking recesses 18 and 18 ′ of the first locking means are provided vertically, respectively. The upper locking recess 18 is recessed inward and downward in a pocket-like shape at the upper part of the discharge port 4. Are formed, and the lower locking recess 18 ′ is formed.
Is formed in a groove shape to guard the lower side of the band guide 13. The locking bar 17 has upper locking rollers 21 and 2 on both sides of a boss 17a protruding from the upper side.
1 is mounted on the upper rocking roller 2
1, 21 are recesses 18a of the upper locking recesses 18.
The upper side is locked by fitting into the lock bar 17.
Lower rocking roller 2 attached to both lower sides of
The lower side is locked by pushing the 1 ', 21' into the groove-shaped lower locking recess 18 '. The second locking means is locked when the tip of the push-up rod 19 constantly urged upward by the spring 19a is inserted into the insertion hole 20. The insertion hole 20 is formed as a long hole having a margin in the door opening direction, and is locked in a rattling state by the second locking means alone, and when the internal pressure is received, the discharge door 4a is slightly opened. .

The two lock mechanisms are provided with one operating lever 2.
Locking or unlocking can be performed by rotating the 2. The operation lever 22 is attached to the left side of the lock bar 17 as a fulcrum, and is attached so as to be vertically rotatable along the door surface.
It is mounted at an eccentric position with respect to 2 ′ and is linked to the lock bar 17 via a plate cam 23.
The plate cam 23 and the push-up rod 19 are connected by a chain 24. The cam surface of the plate cam 23 is guided by a cam roller 25 and, together with the stopper pin 26, regulates the rotation range of the operation lever. The lock mechanism thus formed rotates the operation lever 22 approximately 45 degrees counterclockwise to push up the lock bar 17 as shown in FIG. Rollers 21 and 21 fall into dropping portion 18a
And the lower locking roller comes out of the lower locking concave portion 18 '. By further rotating the lock bar 17 by 45 degrees in the counterclockwise direction, the lock bar 17 is slightly pushed up as shown in FIG. 7B, and the push-up rod 19 is pushed from the insertion hole 20 by the pulling force of the chain 24. The first locking means and the second locking means, which are pulled down to the exit position, can be sequentially released.

FIG. 8 shows a hydraulic circuit, in which both the press cylinder 5 and the push cylinder 8 are operated by pressurized oil pumped from an oil tank 28 by an oil pump 27. The operation of the press cylinder 5 can be controlled by the operation valve 29, and the operation of the extrusion cylinder 8 can be controlled by the operation of the extrusion cylinder operation valve 30. The pressure oil supply path and the return path are connected to each other by two bypass paths 33 and 34 having relief valves 31 and 32, and the relief valve 31 provided in one of the bypass paths 33 is The relief valve 32, which operates at a set pressure (low pressure) and is provided in the other bypass passage 34, is operated at a maximum pressure (high pressure). An off valve 35 is attached. Therefore, by operating the shut-off valve 35,
The upper limit of the pressure oil sent to each of the cylinders 5 and 8 can be switched in two stages.

Next, the operation of the compression packing apparatus thus formed will be described. Note that push buttons for operation described later are provided in a control box (not shown). First, by closing the discharge door 4a and pressing the reset button, the press cylinder operating valve 29 is operated to cause the press platen 6 to wait at the upper limit position. Is charged into the compression chamber 2 in a desired amount. Thereafter, when the input door 3a is closed and the compression button is pressed, the press cylinder valve 19 is operated, the press cylinder 5 is activated, and the input processed material is compressed at the set pressure by the press platen 6. When the press platen 6 reaches the lower limit position, the press plater 6 automatically returns to the upper limit position.
Again, a desired amount of the processed material is introduced. When this operation is repeated several times to increase the amount of the processed material, the compression force required to compress the processed material exceeds the set pressure, and the relief valve 31 is operated. As a result, the force becomes insufficient and the press platen 6 cannot be pushed down to the lower limit, so that the press platen 6 stops at a position where it does not reach the lower limit. When the finishing compression button is pressed, the shut-off valve 35 is closed, and a force exceeding the set pressure is applied to the press platen 6, and the processed material is further compressed, and the press plate 6 reaches the lower limit. Therefore, the pressure at which the relief valve 32 operates needs to ensure that the processed material is compressed by the press platen 6 even if the processed material is excessively filled, and that the press platen 6 has a sufficient value to reach the lower limit. Thus, the operation of compressing and forming the processed material on the bale 36 is completed.

To take out the bale 36, first, the discharge door 4a
Start by opening. When the operation 22 lever is rotated counterclockwise by about 45 degrees, the first locking means is released and the discharge door 4a is opened slightly, but the second locking means is in the locked state, so that it is not opened further. . Further, the operation lever 22
Is rotated approximately 45 degrees counterclockwise, the second locking means is released, and the discharge door 4a can be fully opened. As described above, the discharge door 4a is opened in two stages, and the force for expanding the bale 36 which has been compressed is released once the first locking means is released, thereby preventing the bale 36 from jumping out. At the same time, it prevents the discharge door 4a from opening suddenly.

After the discharge door 4a is opened, when the push button is pressed, the push cylinder valve 30 is operated to start the push cylinder 8, and the bale 36 formed by compression by the push plate 9 is pushed out by a predetermined amount. .
The pushing amount of the predetermined size can be adjusted by changing the position of the dog 10a attached to the guide rod 10. If you press the band send button here,
The band 15 is automatically sent out into the band guide 13, and the band outlet 13a is moved along the band guide 13.
Derived from When the band 15 pulled out from the band drawer 13a is applied to the upper side of the extruded bale 36 and the tip is inserted into the insertion opening of the binding machine 12, automatic binding is performed.

When the first bundling is completed, the push button is pushed again to push out the bale 36 by a predetermined size, and the above bundling operation is repeated.
6 is completely extruded from the outlet. In this way, the lock mechanism of the discharge door is provided on the door surface side, so that there is no obstruction on the side of the compressor, the binding machine can be assembled in close contact, and by attaching the binding machine, automatic binding Becomes possible and workability is improved. Further, since the discharge door is of a lateral opening type and the operation of the lock mechanism is performed by turning the operation lever, the operation can be performed with a light force and the operability is excellent.

In the present invention, the first and second locking means are such that both the locking members protrude and retreat from the area of the door surface either up or down, and the locking portion is provided on the main body side of the compressor. As long as the locking member is locked to the retractable portion of the lock member, for example, a combination of a rotating claw and a locking slit can be used. The present invention is not limited to the embodiment, for example, using a rack pinion or a link other than the chain.
Further, each locking means is provided on the door side and protrudes and disappears from the area of the door surface in any one of upper and lower directions, and a lock member provided on the main body side of the apparatus and locked by the protruding and retracting portion of the lock member. In addition to the locking portion, the locking portion is provided on the main body side of the apparatus, that is, a combination of a locking member that protrudes and disappears in the area of the door surface and a locking portion provided on the door side. Or a combination thereof. When one of the lock members in the first and second lock means is on the door side and one is on the main body side, the lock member on the side without the operation lever is operated between the door side and the main body side. It is necessary to provide an interlocking mechanism with the lever, but since the operation lever has a long handle, it is easy to interlock using the part that moves outside the area of the door surface during rotation.

[0016]

According to the first aspect of the present invention, a discharge door having first and second lock means is provided at the discharge port, and the first and second lock means are rotated by turning an operation lever. Can be sequentially released, so that the discharge door can be prevented from suddenly opening due to the influence of the internal pressure, and since the opening and closing operation can be manually performed, a power source is unnecessary and the structure is simplified. In addition, the first and second locking means can be sequentially unlocked only by turning the operation lever, so that the operation can be turned with a small force, and it is not necessary to move each place, so that operability is improved. Is also excellent. Furthermore, according to the invention of claim 2, the first and second locking means include a locking member that is protruded and retracted in any one of upper and lower directions from a region of the door surface on both door surfaces,
It is provided on the main body side of the compressor and includes a locking portion that is locked to the projecting portion of the lock member. Therefore, there is no obstruction on the side of the device, and the periphery of the discharge door is also opened. Therefore, it is perfect to arrange a band guide around the discharge door and attach a binding machine to the side.

[Brief description of the drawings]

FIG. 1 is an explanatory view of the entire apparatus as a compression packing apparatus in which a binding machine is integrally assembled with a compression apparatus according to the present invention as viewed from the front side.

FIG. 2 is an explanatory view of the entire apparatus as a compression packing apparatus in which a binding machine is integrally assembled with the compression apparatus according to the present invention, as viewed from the side.

FIG. 3 is an explanatory view of an entire apparatus as a compression packing apparatus in which a binding machine is integrally assembled with a compression apparatus according to the present invention, as viewed from above.

FIG. 4 is an explanatory diagram showing a cross section of a part of the compression packing device.

FIG. 5 is an explanatory view of the lock mechanism as viewed from the front.

FIG. 6 is an explanatory diagram showing a structure of a first lock unit.

FIG. 7 is an explanatory diagram of the operation of the first locking means.

FIG. 8 is an explanatory diagram of a hydraulic circuit.

[Explanation of symbols]

1 ··· Compressor, 2 ·· Compression chamber, 3 ··· Inlet, 3a ···
Inlet door, 4 outlet, 4a outlet door, 5 press cylinder, 5a guide cylinder, 6 press board,
7. Extruder, 8. Extruder cylinder, 8a
Piston rod, 9. Extruded plate, 10 Guide rod, 10a dog, 11 Limit switch,
12. Bundling machine, 13 band guide, 13a band outlet, 14 band reel, 15 band, 16 bale holding guide, 17 rock bar, 18, 18 ' Stop recess, 19 ··· push-up rod, 19a · · · spring, 20 · · · insertion hole, 21
..The upper rocking roller, 21 '.. the lower rocking roller, 22..the operating lever, 22' .. the rotating shaft, 23 ..
Plate cam, 24 chain, 25 cam roller, 26
Stopper pin, 27. Oil pump, 28. Oil tank, 29. Press cylinder operating valve, 30.
・ Extrusion cylinder operating valve, 31 ・ ・ Relief valve (for low pressure, 32 ・ ・ Relief valve (for high pressure) 3
3, 34 bypass passage, 35 shutoff valve, 36 bale.

Claims (2)

[Claims] 1. A compressor having an input port and an output port, and for compressing and molding a processed material input from the input port into a bale, wherein the output port has first and second locking means. A compressor provided with a discharge door, wherein the first and second locking means can be sequentially released by turning an operation lever. 2. A lock member provided on a door side and protruding and retracting in an upward or downward direction from an area of a door surface, and a lock member provided on a main body side of the apparatus, The compression packing device according to claim 1, further comprising a locking portion that is locked to the retractable portion.