JP2002002614A - Compression-packing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compression-packing apparatus having the excellent compression efficiency even when the restoring property of a work is large. SOLUTION: This compression-packing apparatus comprises a compression chamber with the work thrown therein, a compression plate for compressing the work by being elevated/lowered in the compression chamber, a return preventive means which is protruded inward of the compression chamber, fixed thereto, locks the compressed work to prevent the work from being returned, a rope holding mechanism for holding a rope which is guided to a predetermined route in the compression chamber, binds and packs the compressed work, a locking mechanism for switching the rope holding mechanism into the locked condition and the unlocked condition, and an ejecting mechanism for ejecting the compressed and packed work. The return preventive means is freely switched to the return preventive position for preventing the return of the work compressed below the compression plate and the compression permissive position for permitting the compression by the compression plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of compressing an object to be processed by a compression plate that moves up and down in a compression chamber, and binding the object to be compressed by a string guided to a predetermined route in the compression chamber.
More specifically, the present invention relates to a compression packing apparatus that has a high efficiency of compression work.

[0002]

2. Description of the Related Art Conventionally, paper scraps such as cardboard, cloths,
2. Description of the Related Art A compression packing device is known as a device for reducing the volume of sponge waste, household waste, and other wastes (hereinafter referred to as "objects to be treated") to save storage space and reduce transportation costs. ing. This compression packing apparatus compresses an object to be processed by a compression plate that moves up and down in a compression chamber, binds the object to be compressed by a string guided to a predetermined route in the compression chamber, and forms a processing block in a packing block. The object is compressed and packed by repeating the cycle of dispensing the object. (See, for example, Japanese Utility Model Laid-Open No. 6-72808).

FIGS. 5 to 8 schematically show a compression packing apparatus disclosed in Japanese Utility Model Laid-Open No. 6-72808. 5 is an overall perspective view, FIG. 6 is a perspective view of a compression plate, FIG. 7 is a side sectional view of a compression chamber, and FIG. 8 is an explanatory view of a main part showing a guiding state of a binding string. The compression packing device 101 has a compression chamber 102 for charging and compressing the object D, and a compression plate 103 which moves up and down inside the compression chamber 102. As shown in FIG. 6, the compression plate 103 includes a plurality of front end guides 105 and a guide space 130 for guiding the plurality of binding cords 104 from the front end to the rear end of the compression plate 103, and the binding strap 104 includes the compression plate 103.
A guide bar 106 is provided on the rear end of the compression chamber 102 for guiding the binding cord 104 up and down (see FIG. 5). A guide 108 and a hook 109 for the binding cord 104 are provided on the rear end and the front end of the upper surface of the tilting plate 107 on the bottom wall of the compression chamber 102 (see FIG. 8).

The reel 1 at the upper end of the compression chamber 102
The binding string 104 pulled out from the top 10 is guided to the guide 108 at the rear end along the upper surface of the tilting plate 107, and then the guide slit 113 on the inner surface of the rear wall of the compression chamber 102 is moved upward from below. Be guided. Subsequently, the compression plate 103
The cord 104 locked to the hook-shaped end portion 106a at the rear end of the guide bar 106 is guided to the front end guide 105 through the guide space 130, and then rises up the front upper portion of the compression chamber 102 and moves to the upper end portion. (See FIG. 8).

The tilt plate 10 on the bottom wall of the compression chamber 102
7 is a shaft 107 at its front end as shown in FIG.
a is rotatably supported by the compression chamber 102 and has a rear end 1
07b is connected to the tilting mechanism 120 via a rotation shaft. The tilting mechanism 120 is provided on the inner surface on the rear side of the compression chamber 102,
A cylinder 121 mounted to be vertically movable;
21 and a rear portion 107b of the tilting plate 107 extending downward.
And a connection shaft 122 that engages with the connection shaft 122. The operation of the tilting mechanism 120 is linked to the rise of the compression plate 103 after the workpiece D is compressed. To perform this interlock, a compression plate 103 is provided at the upper end of the cylinder 121.
An engaging hole 123 into which the interlocking shaft 125 (see FIG. 6) can be inserted and removed is formed.

As shown in FIG. 6, the interlocking shaft 125 is inserted through the reinforcing plate 112 of the compression plate 103 in the front-rear direction, and has an interlocking hook inserted into the engagement hole 123 of the cylinder 121 at the rear end portion. 126 are provided. On the other hand, an operation shaft 127 is connected to a front portion of the interlocking shaft 125. The operating shaft 127 has an intermediate portion provided with a bending member 131 of the compression plate 103 by a support pin 128.
, And an end extending from the supporting portion is bent toward the front of the door 111. Also, the support pin 1
A torsion spring 132 is attached to a portion supported by 28, and urges the interlocking shaft 125 to engage with the cylinder 121. Buffer roller 1 at the end of the extension
29, which is pressed by the inner surface of the door 111 when the door 111 is closed.
32 and the cylinder 1
21 is disengaged from the engagement hole 123.

When compressing and packing the object to be processed D using the compression and packing apparatus 101, first, the compression plate 103 is raised, and then the binding string 104 is guided and set as described above. Subsequently, the workpiece D is loaded into the compression chamber 102 from the loading door 111P, and the workpiece 103 is compressed by lowering the compression plate 103 with the front door 111 closed. Compression plate 1
03 descends to a certain height and stops, then the door 111
open. Subsequently, the lever 10 at the front end of the guide bar 106
6b, the locking state of the binding string 104 with respect to the hook-shaped end 106a of the rear end of the guide bar 106 at the rear end of the compression plate 103 is released, and the binding string 104 is released.
Is cut at an appropriate interval between the reel 110 and the front end of the compression plate 103 shown in FIG. Thereafter, when the cut end of the binding string 104 hanging from the front surface of the workpiece D and the other end removed from the hook fitting 109 are connected, the compression / packaging process is completed.

When the compression plate 103 is lifted with the door 111 opened after the compression / packing processing of the workpiece D is completed, the interlocking hook 126 of the interlocking shaft 125 and the engaging hole 123 of the cylinder 121 coincide with each other. These are engaged at the set positions. As a result, the tilting mechanism 120 is operated, and the rear side of the tilting plate 107 is lifted and tilted as shown in FIG. When the inclination exceeds a certain limit, the workpiece D is moved to the tilting plate 10.
The roller 7 is rolled or slid from above and discharged to the outside of the compression chamber 102. Thereafter, when the compression plate 103 continues to rise, the engagement between the interlocking shaft 125 and the engagement hole 123 of the cylinder 121 is established by an engagement release mechanism (not shown) provided at a predetermined position or by closing the door 111 once. The engagement is released, and the rear side of the tilting plate 107 and the tilting mechanism 120 are lowered.

[0009]

SUMMARY OF THE INVENTION
1 is as follows: (1) When compressing and packing an object D having a high resilience after compression such as an air cap, the object D is put into the input door 111P.
From above into the compression chamber 102, the compression plate 103 is lowered,
If the packing is performed with the compression plate 103 stopped at the lowest position, a package having a small size and a small bulk density can be manufactured. However, in order to manufacture a package having a certain size and a large bulk density (predetermined weight), it is necessary to repeat charging and compressing the object D in the compression chamber 102. Therefore, the compression plate 10
3, the workpiece D is compressed by lowering it, and then the compressed plate 103 is raised again without packing the compressed workpiece D to stop at the highest position, and the next workpiece D is charged. It is necessary to secure a large opening space. However, if the resilience of the object D is large, the return after the end of the compression is large, and the amount of the object D that can be additionally added becomes extremely small, and the compression work efficiency is deteriorated. There was a problem. (2) Further, when compressing and packing the object D having a large restoring property, a triangular return prevention protrusion 111a which is a return prevention means as shown in FIG. When used, when compression is performed, the compression can be performed by lowering the compression plate 103 along the guide surface which is a triangular slope from the top to the bottom of the workpiece D. However, when the compression plate 103 is raised again after the end of the compression, the compressed object D is locked at the bottom of the triangle to prevent return, but the compression plate 103 and the return prevention protrusion 111a are engaged. There is a natural limit to the space that can be entered, and the bottom cannot be protruded so much toward the rear wall. In addition, in the case of repeatedly supplying and compressing the object D to manufacture a package having a large bulk density (predetermined weight), if the amount of the compressed object D increases, the return prevention means may be warped. There is a problem that the triangular return prevention projection 111a hinders the compression work.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a compression packing apparatus which has a good compression work efficiency even for an object to be processed having a large restoring property.

[0011]

According to a first aspect of the present invention, there is provided a compression packing apparatus according to the present invention.
A compression chamber into which the object is charged, a compression plate that compresses the object by moving up and down in the compression chamber, and the object compressed and protruded inward of the compression chamber. Return preventing means for locking and preventing the return thereof, a string holding mechanism for holding a string guided by a predetermined route in the compression chamber and binding and packing the object to be processed after compression, and the string In a compression packing device including a lock mechanism that switches a holding mechanism between a locked state and an unlocked state, and an eject mechanism that discharges the object to be processed after the compression packing, the return prevention unit may be configured to compress below the compression plate. The present invention is characterized in that it is configured to be switchable between a return preventing position for preventing return of the processed object and a compression permission position for permitting compression by the compression plate.

The compression chamber into which the object to be processed is charged, the compression plate for compressing the object to be processed by moving up and down in the compression chamber, and the compression chamber protruding inward from the compression chamber and fixed. Return preventing means for locking the processed object and preventing return thereof, and a string for holding a string guided by a predetermined route in the compression chamber to bind and pack the processed object after compression In a compression packing apparatus including a holding mechanism, a lock mechanism for switching the string holding mechanism between a locked state and an unlocked state, and an eject mechanism for discharging the object to be processed after the compression packing, the return preventing unit includes: By being configured to be switchable between a return preventing position for preventing return of the object compressed below the compression plate and a compression permission position for permitting compression by the compression plate, the object to be processed before packing is formed. Thing Since the opening space to add-on an object to be processed when it is necessary to repeat the contraction and the input made large, it is possible to perform the compression work of the restoration of the large object to be processed efficiently.

According to a second aspect of the present invention, there is provided a compression packing device according to the present invention, wherein the return preventing means is configured to be able to freely move in and out facing the inside of the compression chamber. It is a compression packing device as described in the above.

In this way, the return preventing means is configured to face the inside of the compression chamber so as to be able to come and go, so that the object to be processed compressed in the compression chamber can be reliably prevented from returning, and A large opening space can be provided for additionally charging the workpiece. As a result, it is possible to efficiently perform the work of compressing the object to be processed having high restorability.

According to a third aspect of the present invention, there is provided a compression packing apparatus according to the present invention, wherein the return preventing means is rotatable facing the inside of the compression chamber. 2. The compression packing device according to item 1.

As described above, the return preventing means is configured to be rotatable facing the inside of the compression chamber, so that the object to be processed compressed in the compression chamber can be reliably prevented from returning, and In addition, a large opening space can be provided for additionally charging the workpiece. As a result, it is possible to efficiently perform the work of compressing the object to be processed having high restorability. Further, the mounting space around the compression packing device can be made smaller than that of the compression packing device according to the second aspect.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a compression packing device according to the present invention will be described below with reference to the accompanying drawings. FIG.
FIG. 2 is an overall perspective view showing a first embodiment of the compression packing device according to the present invention. FIG. 2 is a longitudinal sectional view showing the structure of the return preventing means of the first embodiment of the compression packing device according to the present invention. Is
FIG. 4 is a schematic diagram for explaining an operation cycle of the return prevention means of the first embodiment of the compression packaging device according to the present invention,
It is a figure for explaining return prevention means of a 2nd embodiment of a compression packing device concerning the present invention. The compression packing apparatus 1 according to the first embodiment is a conventional compression packing apparatus in which return prevention means 2A and 2B are newly provided. Therefore, the same components as those of the prior art will be denoted by the same reference numerals and will be described with reference to the previously described drawings, and different components will be described in detail. As shown in FIG. 1, the compression packing device 1 according to the first embodiment is a hollow casing having a rectangular shape, and a compression chamber 102 into which an object to be processed D is charged and a vertical movement in the compression chamber 102. Plate 10 for compressing the object D to be processed
3, return-preventing means 2A, 2B provided in the compression chamber 102 on the rear wall and the door 111 so as to be opposed to the horizontal direction. A string holding mechanism for holding a string for bundling and packing, a lock mechanism for switching the string holding mechanism between a locked state and an unlocked state, and the compression plate 103 being activated by being raised in the compression chamber 102. And an eject mechanism having a tilting plate 107 for discharging the object D after compression and packing.

As shown in FIG. 1, the compression chamber 102 is a rectangular hollow housing, and is a room in which the workpiece D is loaded by opening the loading door 111P and compression and packing are performed. A slit portion 113 is provided on the rear wall of the compression chamber 102, and the binding string 104 is guided.

As shown in FIG. 6, the compression plate 103 is a substantially rectangular plate member, and a piston P of the hydraulic cylinder OC is provided at the center of the upper surface of the reinforcing plate 112 of the compression plate 103 as shown in FIG. The compression plate 103 moves up and down in the compression chamber 102 together with the piston P by the operation of the hydraulic cylinder OC. The compression plate 103 is provided in the compression chamber 1.
This is a plate member that compresses the workpiece D while sandwiching it between the tilting plate 107 provided at the bottom of the compression chamber 102 when the piston P descends in the piston 02. As shown in FIG. 6, a plurality of bending members 131 are provided on the lower surface of the compression plate 103 in the front-rear direction, and the binding string 104 is guided between them.
Although the hydraulic cylinder OC is provided in the compression chamber 102 in FIG. 1, the hydraulic cylinder OC is provided on the back surface of the compression packing device 1, and the compression chamber 1 is externally provided via a joint.
Alternatively, the compression plate 103 in 02 may be moved up and down.

The string holding mechanism holds the binding string 104. As shown in FIG. 8, the string holding mechanism is provided on a reel 110 provided above the compression chamber 102 and on a compression plate 103.
A plurality of front end guides 105 and guide spaces 130 (see FIG. 6) for guiding the binding strap 104 from the front end to the rear end of the compression plate 103, and the binding strap 104 is locked and held at the rear end of the compression plate 103.
A lock mechanism for releasing, and a guide slit 11 provided on the inner surface of the rear wall of the compression chamber 102 for guiding the binding string 104 up and down.
3 and a tilting plate 107 provided on the bottom wall of the compression chamber 102
The main part is composed of a guide 108 and a hook fitting 109 provided at the rear end portion and the front end portion of the upper surface. With this configuration, after the workpiece D is sandwiched between the tilting plate 107 provided at the bottom of the compression chamber 102 and the compression plate 103 and compressed, the compressed workpiece D is bound for binding. The packing can be suitably performed by the string 104.

The locking mechanism includes a compression plate 1 as shown in FIG.
03, a lever 106b provided at the front end of the guide bar 106;
And a hook-shaped end portion 106a at which the binding cord 104 is locked / released at the rear end of the end portion 06.

The main part of the eject mechanism is formed by the tilt plate 107 and the tilt mechanism 120. The tilting plate 107 is
As shown in FIG. 7, a shaft 107a at the front end is rotatably supported in the compression chamber 102, and the rear end is connected to the tilting mechanism 120 via a rotating shaft. The tilting mechanism 120 includes a cylindrical body 121 movably mounted on a rear inner surface of the compression chamber 102 and a connecting shaft 122 extending downward from the cylindrical body 121 and engaging with a rear portion 107 b of the tilting plate 107. And formed from As shown in FIG. 7, an engagement hole 123 into which the interlocking shaft 125 of the compression plate 103 is removably inserted is formed at an upper end portion of the cylindrical body 121. The eject mechanism does not use the tilting plate 107 and the tilting mechanism 120, and is provided at a lower portion of the back surface of the compression chamber 102.
A pusher composed of a cylinder, a piston, and an extruding plate (not shown) may be provided, and the compression-packing device 1 may be pushed out from the rear side to the front side to discharge the object D into a packing block.

Next, a first embodiment of the return preventing means according to the present invention will be described with reference to FIGS. The return prevention means 2A, 2B of the first embodiment according to the present invention
The main part is composed of two horizontally opposed hydraulic actuators, which are mounted one by one on the rear wall and the door 111 so as to be horizontally opposed as shown in FIG. Less than,
Since the two return prevention units 2A and 2B have the same structure, the structure of only one return prevention unit 2B will be described with reference to FIG. The return preventing means 2B includes a hydraulic actuator formed of a hydraulic cylinder 2B1, a piston 2B2 provided in the hydraulic cylinder 2B1, a piston rod 2B3 that reciprocates linearly with the piston 2B2, and a piston rod 2B3. And a bar (or plate) 2B4 attached to the tip. The return prevention means 2A and 2B used in the compression packing device 1 according to the present invention are provided on the rear wall and the door 111 in FIG.
Although they are mounted so as to face each other in the horizontal direction, they may be provided so as to face the side walls one by one in the horizontal direction. Further, a plurality of return prevention means 2A and 2B may be provided so as to oppose in the horizontal direction as necessary.

The return preventing means 2B operates as follows. The hydraulic cylinder 2B of FIG.
When the oil is supplied to the A port of No. 1, the piston 2B2 is pushed and the oil in the chamber on the discharge side is discharged through the B port.
At this time, a propulsive force is generated in the piston 2B2, the piston rod 2B3 retreats, and the bar 2B4 provided at the tip of the piston rod 2B3 moves outside the compression chamber 102. When the oil flow path is switched and oil is supplied from the B port of the hydraulic cylinder 2B1 to the hydraulic cylinder 2B1, a reverse propulsion force is similarly generated in the piston 2B2, the piston rod 2B3 moves forward, and the distal end of the piston rod 2B3. Moves to the inside of the compression chamber 102. By switching the oil flow path in this way, the bar (or plate) 2B4 attached to the piston rod 2B3 can be moved horizontally (extendably and retractably). The bar 2B4 is provided so as to protrude inward in the horizontal direction by a length of, for example, 150 mm to 200 mm from the inner wall surface of the door 111 of the compression packaging device 1. The length can be changed as appropriate. If a plate material is used instead of the bar 2B4, the contact area between the compressed workpiece D and the plate material increases, and the workpiece D can be reliably pressed against the tilting plate 107, so that the return can be more suitably prevented. In the present embodiment, oil energy is used as a drive source of the actuator, but air, electricity, or the like can also be used depending on restrictions on the installation location of the compression packaging device 1.

Next, the working cycles (a) to (f) of the compression packing apparatus 1 provided with the return preventing means 2A, 2B according to the present invention will be described with reference to the schematic diagram of FIG. (A) The loading door 111P is opened and the workpiece D is loaded into the compression chamber 102. (B) Close the input door 111P. The object to be processed D is compressed by lowering the compression plate 103. At this time, since the door 111 is closed, the buffer roller 129 shown in FIG.
Since the engagement between the interlocking shaft 125 and the engagement hole 123 of the cylindrical body 121 is released by overcoming the urging force of the torsion spring 132, the compression plate 103 can be lowered. (C) The lowering of the compression plate 103 is stopped at a predetermined position, and the bar (or plate) 2A4 of the return preventing means 2A, 2B provided at the lower part of the compression chamber 102 near the bottom surface of the compression plate 103. , 2B4 to the rear wall of the compression chamber 102 and the door 11
1 and project in the horizontal direction toward the inside of the compression chamber 102. The upper end of the workpiece D after compression is fixed with the bars (or plates) 2A4 and 2B4 at the upper end, and the tilting plate 107 at the lower end. (D) The compression plate 103 is raised and stopped at the upper limit position. The loading door 111P is opened, and the workpiece D is additionally loaded into the compression chamber 102. (E) Close the input door 111P. 2A of return prevention means,
The 2B bars 2A4 and 2B4 are withdrawn from the compression chamber 102. (F) The compression plate 103 is lowered again to compress the workpiece D and stop at a predetermined position. The above operations (a) to (f) are repeated, and when the weight reaches a predetermined value, the front door 111 is opened in the state of (f), and the lever 106b at the front end of the guide lever 106 in FIG. At the rear end of the guide bar 106 at the rear end of the guide bar 106, the locking state of the binding string 104 with respect to the hook-shaped end 106a is released, and the binding string 104 is connected between the reel 110 and the front end of the compression plate 103 shown in FIG. Cut at appropriate intervals between. Thereafter, the cut end of the binding string 104 hanging from the front surface of the workpiece D and the hook fitting 109
The compressed object D is packed by tying the other end removed therefrom. When the compression plate 103 is raised with the door 111 opened, the interlocking hook 126 of the interlocking shaft 125 and the cylinder 12
These engage with each other at a position where the first engagement hole 123 coincides with the first engagement hole 123. As a result, the tilting mechanism 120 is operated, and the rear side of the tilting plate 107 is lifted and tilted as shown in FIG. When the inclination exceeds a certain limit, the workpiece D rolls or slides on the inclined plate 107 and is discharged to the outside of the compression chamber 102. In this way, it is possible to take out the blocked packaged product from the compression packaging device 1. The operations (a) to (f) may be performed by manual operation such as button operation or may be performed automatically by a sequencer or the like.

As described above, when it is necessary to repeat the compression and charging of the object D before packing, when the compression plate 103 after the compression of the object D is lifted, it comes close to the bottom surface of the compression plate 103. Then, the bars (or plates) 2A4 and 2B4 of the return preventing means 2A and 2B are connected to the rear wall of the compression chamber 102 and the door 111.
From the horizontal direction toward the inside of the compression chamber 102, and the upper end of the workpiece D is placed on the bar (or plate) 2A.
4, 2B4, and the lower end thereof is sandwiched and fixed by the tilting plate 107, so that the compressed workpiece D can be reliably prevented from returning. As a result, a large opening space can be secured when the workpiece D is additionally charged. Further, when the compression plate 103 is raised and stopped at the upper limit position, and the workpiece D is additionally supplied from the input door 111P and recompressed by the compression plate 103, the bar (or the plate material) of the return preventing means 2A, 2B is required. 2) The space volume in the compression chamber 102 can be effectively used by retracting the 2A4 and 2B4 from the compression chamber 102.

As described above, when the compression plate re-rises, the processing object having a large restoring property can be provided by adding a means for preventing the processing object from being returned to the inside of the compression chamber so as to be able to move in and out in advance. It is possible to provide a compression packing device capable of efficiently performing an operation of compressing an object. Further, the return of the workpiece can be more reliably prevented as compared with the case of using the triangular return prevention projection which is the conventional return prevention means.

The compression packing apparatus of the second embodiment according to the present invention differs from the compression packing apparatus of the first embodiment only in the return preventing means. Only the configuration and operation will be described with reference to FIG. Note that the entire work cycle of the compression packing apparatus 1 'of the second embodiment is substantially the same as that of the compression packing apparatus 1 of the first embodiment, and a description thereof will be omitted. As shown in FIG. 4, the return prevention means 3A of the second embodiment has one end thereof compressed and packed.
Hydraulic cylinder OC having the other end fixed vertically to the piston rod 3A3 so that the piston rod 3A3 can expand and contract upward.
1 and a lever LV whose center is rotatably supported and has a V-shape in which an oblong hole LV1 is formed in the right half, and as the piston rod 3A3 of the hydraulic cylinder OC1 expands and contracts up and down. Then, the circular projection C provided at the distal end of the piston rod 3A3 slides along the inner circumference of the oblong hole LV1, and the lever LV rotates about the center as a fulcrum and is compressed. A return prevention mechanism formed so that the upper end of the workpiece D can be pressed by the left end of the lever LV, and the lever LV can be freely inserted into and removed from the outside of the door 111 'when the lever LV rotates. And a notch 103 'on the side of the door 111' so that the left end of the lever LV can freely enter and exit from the upper surface when the lever LV rotates.
The main part is composed of the compression plate 103 'having L.

The operation of the return preventing means according to the second embodiment will be described. (A) As in the first embodiment, the workpiece D is loaded into the compression chamber 102 'from a loading door (not shown). (B) The compression plate 103 'in the compression chamber 102' is lowered to compress the workpiece D. (C) The lowering of the compression plate 103 'is stopped at a predetermined position, and the return prevention means 3A provided outside the lower part of the door 111' of the compression packaging device 1 'is driven. (D) When the piston rod 3A3 of the hydraulic cylinder OC1 is extended upward, the circular projection C provided at the upper end of the piston rod 3A3 along the inner periphery of the oblong hole LV1 becomes the oblong hole L.
The lever LV, which slides along the inner circumference of V1 and has an L-shape in accordance with the piston rod 3A3 of the hydraulic cylinder OC1 extending upward, is the center, and the direction opposite to the direction in which the clock hand rotates as the fulcrum. To rotate. (E) The left half of the lever LV rotates in the direction opposite to the direction in which the clock hand rotates, passes through the slit S of the door 111 ', enters the compression chamber 102', and further compresses the compression plate 103 '. Through the notch 103'L. When the piston rod 3A3 of the hydraulic cylinder OC1 extends to the uppermost position, the upper end of the compressed workpiece D is pressed by the left end of the lever LV, and the lower end is received and sandwiched by the bottom plate in the compression chamber 102 '. Fix it.

(F) The compression plate 103 'is raised and stopped at the upper limit position. The charging door (not shown) is opened, and the workpiece D is additionally charged into the compression chamber 102 '. Close the input door. (G) The piston rod 3A3 of the hydraulic cylinder OC1 is lowered, and the lever LV of the return prevention means 3A is rotated in the direction in which the clock hand rotates, and is withdrawn from the inside of the compression chamber 102 'to the outside of the compression packing device 1'. Here, when the lever LV is rotated in the direction in which the hands of the clock rotates to retract, the left half of the lever LV passes through the notch 103'L of the compression plate 103 ', and further, the slit of the door 111'. After passing through S and retreating to the outside of the compression chamber 102 ', when the piston rod 3A3 is at the lowermost position, it is oriented vertically. (H) The compression plate 103 'is lowered again to recompress the workpiece D and stop at a predetermined position. The above operations (A) to (H) are repeated, and when a predetermined weight is reached, the front door 111 'is opened in the state of (H). Next, the compressed object D is packed with a tying strap, and the compressed packing material is discharged from the compression packing device 1 '. The operations (A) to (H) are
The operation may be performed by manual operation such as button operation, or may be performed automatically by a sequencer or the like. In FIG. 4, the return preventing means 3A of the compression packing device 1 'is located on the door 111' side.
Although only one unit is shown, a plurality of units may be provided as necessary.

As described above, before the compression plate 103 'is lifted, the left half of the U-shaped lever LV of the return prevention means 3A is brought close to the bottom surface of the compression plate 103' and the door 11 of the compression chamber 102 '.
1 ', the slit S is inserted through the notch of the compression plate 103', the upper end of the workpiece D is received by the left end of the left half of the lever LV, and the lower end of the workpiece D is received by the bottom plate. , The return of the compressed workpiece D can be reliably prevented. As a result, a large opening space can be secured when the workpiece D is additionally charged. Further, when the compression plate 103 'is raised and stopped at the upper limit position, and the workpiece D is additionally supplied from an input door (not shown) and recompressed by the compression plate 103', the return preventing means 3A
By retracting the lever LV from the compression chamber 102, the space volume in the compression chamber 102 can be effectively used. Also, since the hydraulic cylinder used in the return prevention means of the first embodiment is mounted so as to face in the horizontal direction, an installation space around the compression packing device is required, but in the second embodiment, Hydraulic cylinder O
Since C1 is provided in the vertical direction and the return preventing means 3A is provided only on the front side of the door 111 ', the mounting space around the compression packing device 1' can be made smaller than that of the compression packing device of the first embodiment. .

Thus, when the compression plate rises again,
Provided is a compression packing apparatus capable of efficiently performing a work of compressing an object to be processed with high resilience by adding a return prevention means for the object, which is configured to be rotatable facing the inside of the compression chamber in advance. Can be. In addition, the return of the workpiece can be prevented more reliably than in the case where the conventional triangular return prevention protrusion is used.

[0033]

As is clear from the configuration and operation described above, the following are obtained. According to the first aspect of the present invention, a compression chamber into which an object to be processed is charged, a compression plate that compresses the object to be processed by moving up and down in the compression chamber, and protruding inward of the compression chamber. Return-prevention means for locking and compressing the object to be fixed and preventing return thereof, and binding and packing the object to be compressed and guided in a predetermined route in the compression chamber; A string holding mechanism that holds a string, a lock mechanism that switches the string holding mechanism between a locked state and an unlocked state,
An ejection mechanism for discharging the object after the compression packing, in the compression packing device, the return prevention means,
By being configured to be switchable between a return preventing position for preventing return of the object to be processed compressed below the compression plate and a compression permission position for permitting compression by the compression plate, it is possible to prevent the object from being compressed before packing. When it is necessary to repeat the compression and charging of the processing object, the opening space for additionally charging the processing object can be increased, so that the compressing operation of the processing object with high resilience can be efficiently performed. As a result, it is possible to provide a compression packing device having a good compression work efficiency even for an object to be processed having a large restoring property. 2. According to the second aspect of the present invention, the return prevention means is configured to face the inside of the compression chamber so as to be able to move in and out, so that the object to be processed compressed in the compression chamber is reliably prevented from returning. And a large opening space for additionally charging the object to be processed can be obtained. As a result, it is possible to efficiently perform the work of compressing the object to be processed having high restorability. 3. According to the third aspect of the present invention, since the return preventing means is configured to be rotatable facing the inside of the compression chamber, it is possible to reliably prevent the workpiece compressed in the compression chamber from returning. In addition, a large opening space can be provided for additionally charging the object to be processed. As a result, it is possible to efficiently perform the work of compressing the object to be processed having high restorability.
Further, a space for mounting around the compression packing device is provided.
Can be smaller than the compression packing device described in (1).

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a first embodiment of a compression packing device according to the present invention.

FIG. 2 is a longitudinal sectional view for explaining a structure of a return preventing means of the first embodiment of the compression packing device according to the present invention.

FIG. 3 is a schematic diagram for explaining an operation cycle of a return preventing means of the first embodiment of the compression packing device according to the present invention.

FIG. 4 is a view for explaining a structure of a return preventing means of the second embodiment of the compression packing device according to the present invention.

FIG. 5 is an overall perspective view of a conventional compression packing device.

FIG. 6 is a perspective view of a conventional compression plate.

FIG. 7 is a side sectional view of a conventional compression chamber.

FIG. 8 is an explanatory view of a main part showing a guiding state of a binding string of a conventional compression packing device.

[Explanation of symbols]

 1, 1 'Compression packing device 2A, 2B Return prevention means 2B1 Hydraulic cylinder 2B2 Piston 2B3 Piston rod 2B4 Bar (or plate) 3A Return prevention means 3A3 Piston rod 102, 102' Compression chamber 103, 103 'Compression plate 103'L Notch 111, 111 'Door 111P Input door C Circular projection D Workpiece LV Lever LV1 Oval hole OC, OC1 Hydraulic cylinder P Piston S Slit

Claims (3)

[Claims] 1. A compression chamber into which an object to be processed is charged, a compression plate for compressing the object to be processed by moving up and down in the compression chamber; Return preventing means for locking and preventing return of the object to be processed, and string holding for guiding a line guided in a predetermined route in the compression chamber to bind and pack the object to be processed after compression A compression mechanism including a mechanism, a lock mechanism for switching the string holding mechanism between a locked state and an unlocked state, and an eject mechanism for discharging the object to be processed after the compression packing. A compression packing apparatus, which is configured to be freely switchable between a return preventing position for preventing return of the workpiece compressed below a plate and a compression permission position for permitting compression by the compression plate. 2. The compression packing apparatus according to claim 1, wherein the return prevention means is configured to be able to protrude and retract toward the inside of the compression chamber. 3. The compression packing apparatus according to claim 1, wherein the return preventing means is rotatable facing the inside of the compression chamber.