JP3873750B2 - Crushing press - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pressure-type crushing press device that crushes a member with a pair of press tables, and particularly needs to be crushed thoroughly until the cross-sectional shape is unspecified industrial waste or substantially flat. For example, it is suitable for crushing radioactive waste generated from facilities of nuclear power plants.
[0002]
[Prior art]
Industrial waste generated from various facilities has an unspecified cross-sectional shape, and some of the cross-sectional shapes are difficult to be crushed when they are set between the tables of the crushing press device in such a posture that they do not fall down.
[0003]
In addition, radioactive waste generated from nuclear power plant facilities is stored in a dedicated storage box. At that time, in order to efficiently put the radioactive waste in the storage box, the radioactive waste is substantially flattened with a pressure-type crushing press. Crushing is done until it becomes.
[0004]
Conventionally, when crushing and pressing a member that is difficult to crush, a hydraulic jack or the like is operated to crush while holding the article in a posture capable of crushing pressing between hands using a dedicated holding jig. The work was performed, and the person was stopped holding the member at an appropriate stage, or the holding jig was removed and the crushing press was continued.
[0005]
Moreover, in order to crush and press a member until it becomes flat efficiently, holding | maintenance in the attitude | position which can be crushed more easily was also performed. For example, as shown in FIG. 7 (1), when the square steel pipe 2 is crushed and pressed with a pair of press tables 3 and 4, the side surface 2 a of the square steel pipe 2 is not placed on the lower table 3. Instead, as shown in FIG. 7 (2), the chamfering press is performed by holding the crest 2b of the square steel pipe 2 on the lower table 3 by a manual or dedicated holding jig 26.
[0006]
[Problems to be solved by the invention]
However, this method has a problem that it is dangerous when performed manually. Also, when using a dedicated holding jig, the holding jig gets in the way during the crushing work, so it is necessary to remove the holding jig during the crushing work, and the crushing work must be interrupted. There wasn't.
[0007]
An object of the present invention is to provide a crushing press device that eliminates such a problem and does not require manual labor and does not require removal of a holding jig in the middle of a crushing operation. In particular, an object of the present invention is to provide a crushing press apparatus capable of coping with thorough volume reduction processing required when waste generated from a nuclear power plant or the like is stored in a dedicated storage box.
[0008]
[Means for Solving the Problems]
The present invention is provided with a posture holder that is mounted on at least one of a pair of press tables and maintains the mounting posture of the crushing member on the table, and this posture holder can be stored in a storage portion formed on the table. In addition, the crushing press device is configured to elastically support the posture holder so that the posture holder is retracted and accommodated in the accommodating portion as the crushing member presses , and the posture holder can be operated in a leg-opening direction in the closed leg direction. A crushing press device, which is formed by a pair of rotary arms that are urged and urged, and can be retracted and accommodated in the accommodating portion by pushing the rotary arm with the progress of pressing the crushing member. It is.
[0011]
[Action]
At the start of the crushing operation, the member to be crushed is held by a posture holder so as to be crushed efficiently, and placed on a lower table, for example.
In the case where the posture holding tool is formed by a pair of rotating arms, the pair of rotating arms are pushed open as the press progresses, and the legs are drawn into the accommodating portion formed in the lower table as the legs are opened. Be contained. When the press is completed, the pair of rotating arms are closed by the tension spring as the elastic support member and returned to the original position.
[0012]
In the case where the posture holder is formed by a plurality of expansions and contractions, the plurality of expansion and contraction arms are pushed down and stored in the storage portion formed in the lower table as the press progresses. When the pressing is completed, the plurality of telescopic arms are pushed up by the compression springs as the resilient members and return to their original positions.
[0013]
This eliminates the need for an operator and eliminates the need to remove the jig for holding the member to be crushed during the crushing operation, so that the crushing operation is interrupted and the member is crushed until it becomes substantially flat. be able to.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, a preferred embodiment of the present invention will be described with reference to the drawings. 1 and 2 are perspective views of the entire apparatus of the present invention . FIG. 1 shows a state before the crushing operation is performed, and FIG. 2 shows a state in which the crushing operation is completed. FIG. 3 is a front view of an essential part of the first embodiment of the apparatus according to the present invention. 4 is a view taken along arrows A to A in FIG. FIG. 5 is a view taken along arrows BB in FIG.
[0015]
1 and 2, a pair of press tables 3 and 4 for placing the member 2 to be crushed are provided at the center of the crushing press apparatus 1. The lower table 3 is provided with a plurality of posture holders described later. Opposed to the upper surface of the lower table 3, the upper table 4 is installed by a hydraulic jack 5 so that the member 2 can be crushed. The hydraulic jack 5 is operated by a hydraulic pump 6 disposed in the vicinity of the crushing press device 1. On both sides of the lower table 3 and the upper table 4 are provided recesses 7 for raising and lowering the guides, and the recesses 7 are provided on the column 8 with guide rails provided vertically on the left and right sides of the crushing press device 1 in the vertical direction. It is slidably fitted to. A safety wall 9 is stretched around the upper table 3 and the lower table 4, and a gate 10 for taking in and out the crushing member 2 is attached to the front surface of the upper table 4 and the lower table 3. . FIG. 1 shows a state in which the gate 10 is opened and the crushing member 2 is supported by the posture holder 5a and placed on the lower table 3. FIG. 2 shows a state in which the crushing of the crushed member 2 is completed.
[0016]
Next, in the first embodiment of the present invention, as shown in FIGS. 3 to 5, a plurality of openings 11 are provided on the upper surface of the lower table 3 at a position where the member 2 to be crushed is placed. A mounting plate 13 extending downward in the table 1 is fixed to the front side edge 12 of each opening 11.
[0017]
The mounting plate 13 is provided with a posture holding jig for placing the crush member 2 on the lower table 3 in a fixed posture. The rotating arms 14a and 14b are attached so as to be able to open legs and are elastically urged in the direction of closing legs. The intermediate portions of the pair of rotating arms 14a and 14b are pivotally attached by pins 15a and 15b, and are supported so as to be able to open the legs on a plane perpendicular to the carrying-in direction of the member 2. The upper portions of the rotating arms 14a and 14b are curved in directions opposite to each other so that the member 2 can be easily held. And the bases 16a and 16b for hold | maintaining the member 2 are provided as a member holding part in the upper end part of the rotating arms 14a and 14b.
[0018]
Pins 18a and 18b for locking one ends of the tension springs 17a and 17b are attached to the lower ends of the rotary arms 14a and 14b. The other ends of the tension springs 17 a and 17 b are locked to pins 19 a and 19 b attached to the attachment plate 13. The tension springs 17a and 17b serve to elastically support the rotary arms 14a and 14b. When the member 2 is placed on the lower table 3 at the start of crushing, the base springs 16a and 16b are lowered. Positioned above the table 3, when the crushing is completed and the member 2 is compressed into a substantially flat shape, the rotating arms 14 a and 14 b are rotated so that they can be positioned below the upper surface of the lower table 3. The arms 14a and 14b are elastically supported. Therefore, as the pressed member 2 is pressed, the rotary arms 14a and 14b as posture holding tools are rotated against the tension springs 17a and 17b, and can be retracted and accommodated in the opening 11 as the accommodating portion. It is like that. The mounting plate 13 is provided with stoppers 20a and 20b for stopping the rotary arms 14a and 14b from being closed by the tension springs 17a and 17b.
[0019]
Next, the crushing operation by the above apparatus will be described. First, as shown in FIG. 3A , at the start of the crushing operation, the crushing member 2 is held by the rotary arms 14a and 14b and placed on the lower table 3 in such a posture that the crushing member 2 can be efficiently crushed. . The example of FIG. 3 (1) is a case where the square steel pipe 2 is compressed. The square steel pipe 2 is held on the lower table 3 while being held so that the crest 2 b of the square steel pipe 2 is inserted into the middle part of the rotating arms 14 a and 14 b. The square steel pipe 2 is placed and the posture is maintained. As the crushing operation proceeds, the rotary arms 14a and 14b gradually open while being pulled by the tension springs 17a and 17b. When the crushing operation is completed and the crushing member 2 is crushed into a substantially flat shape, the rotating arms 14a and 14b are drawn downward from the upper surface of the lower table 3 as shown in FIG. Be contained. When the crushed member 2 to be crushed is removed, the restoring arms of the tension springs 17a and 17b close the rotating arms 14a and 14b and return to the state shown in FIG .
[0020]
This eliminates the need for an operator and eliminates the need to remove the jig for holding the member to be crushed during the crushing operation, so that the crushing operation is interrupted and the member is crushed until it becomes substantially flat. be able to.
[0021]
Next, an embodiment similar to the apparatus of the present invention will be described with reference to FIGS. FIG. 6A shows a state before the crushing operation is performed, and FIG. 6B shows a state where the crushing operation is completed. In this embodiment, a plurality of telescopic arms 21a and 21b as posture holding tools, which are urged by the compression springs 22a and 22b, are accommodated on the lower side of the lower table 3. Upper portions of the telescopic arms 21 a and 21 b protrude above the lower table 3 from holes 23 a and 23 b provided in the lower table 3. Locking portions 24a and 24b for locking the compression springs 22a and 22b are provided at the lower ends of the telescopic arms 21a and 21b, and a stepped portion 25a for stopping the telescopic arms 21a and 21b from coming off at an intermediate portion. 25b is provided. In this embodiment, two telescopic arms are shown. However, if the number of telescopic arms is increased, the collapsed member 2 can be held more stably.
[0022]
Next, the crushing operation by the above apparatus will be described. As the crushing operation proceeds from the state shown in FIG. 6 (1), the compression springs 22a and 22b are compressed, and the telescopic arms 21a and 21b are gradually pushed down. When the crushing operation is completed and the member 2 to be crushed is crushed into a substantially flat shape, the telescopic arms 21a and 21b are drawn into the lower table 3 and housed as shown in FIG. Is done. When the crushed member 2 is removed, the telescopic arms 21a and 21b are pushed up by the restoring force of the compression springs 22a and 22b, and the state returns to the state shown in FIG.
[0023]
This eliminates the need for a worker and eliminates the need to remove the jig for holding the crushing member during the crushing operation, so that the crushing member becomes substantially flat without interrupting the crushing operation. Can be crushed.
[0024]
In the above embodiment, an example in which the lower table 3 is equipped with the posture holding member is shown. However, the upper table 4 may be equipped in some cases, and has a crushing table structure with a left and right sandwich type. It can also be applied to.
[0025]
【The invention's effect】
As described above, according to the present invention, it is possible to perform a crushing operation that does not require manual work and does not require removal of a jig in the middle of the crushing operation. In particular, it is possible to perform a crushing operation that can cope with a thorough volume reduction process that is required when waste generated from a nuclear power plant or the like is stored in a dedicated storage box.
[0026]
According to the present invention, workability can be improved and work costs can be greatly reduced, so that a great industrial effect can be achieved.
[Brief description of the drawings]
FIG. 1 is a perspective view of an apparatus according to the present invention, showing a state where a member to be crushed is carried in. FIG.
FIG. 2 is a perspective view of the device of the present invention, showing a state when crushing is completed.
FIG. 3 is an enlarged cross-sectional view of an essential part of an embodiment of the apparatus of the present invention. (1) shows the state at the start of crushing. (2) shows the state when crushing is completed.
4 is a cross-sectional view taken along the line AA in FIG.
5 is a cross-sectional view taken along the line BB in FIG.
FIG. 6 is an enlarged cross-sectional view of an essential part of an embodiment similar to the apparatus of the present invention. (1) shows the state at the start of crushing. (2) shows the state when crushing is completed.
FIG. 7 is an explanatory diagram of a conventional crushing operation.

Claims (1)

At least one of the pair of press tables is provided with a posture holder that maintains the mounting posture of the member to be crushed on the table, and the posture holder can be stored in a storage portion formed on the table, and A crushing press device that elastically supports the posture holder so that the posture holder is retracted and accommodated in the accommodating portion as the member presses , and the posture holder can be operated in a leg-opening manner and is elastically biased in the direction of the closed leg. A crushing press apparatus characterized in that it is formed by a pair of rotating arms formed and can be retracted and accommodated in the accommodating portion by pushing open the rotating arm as the pressing of the crushing member proceeds .

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