JP2007054932A - Scrap cutting work bench - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scrap cutting work bench, inhibiting scraps from being released from a cutting and crushing blade in cutting, and always properly biting and holding scraps even if a processing yard is not wide. <P>SOLUTION: In this scrap cutting work bench, the scraps are cut by a scrap cutting and crushing machine equipped with a cutting and crushing blade operated to open and close at the end of a revolving and elevating working boom on a support frame. The work bench includes: first and second pedestals supporting the scrap in the laterally lying state at two points separated from each other on both sides in the axial direction of the scrap with the cutting part between them so that the scrap cutting region faces an opening and closing gap of cutting and crushing blade within a movable range of the boom; and a fixing means for keeping a predetermined relative positional relationship between the first and second pedestals and the scrap cutting and crushing machine during the cutting work. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a scrap cutting work table suitable for cutting a large scrap steel material of various kinds of waste materials such as a chassis of a scrap car, an I-beam of construction waste material, a steel sheet pile, and a pipe waste material.

  Conventionally, scrap scrapping work of scrap cars is done by dropping piled scrap cars to the ground one by one with a crane, carrying them sideways with a transport vehicle, cutting them to an appropriate size with a cutting torch, etc. at the workplace of a scrap factory, or The engine parts were being removed.

  On the other hand, for example, equipped with a pair of left and right working arms that can be opened and closed by power at the front or rear of a self-propelled vehicle equipped with a hydraulically operated boom having an opening and closing work penetrator at the tip and capable of turning and prone, Various work, such as a pair of opposed cups for holding the scrap object in a work arm so that it can be pivoted from both sides, and a pair of breaking tools for crushing or breaking the scrap object from both sides A dismantling machine with a hand attached is also known (see, for example, Patent Document 1). With such a dismantling machine, the efficiency of scrap dismantling work is dramatically improved, and the scrap collection by scrap material is also highly efficient. It is true that it has become possible.

  Also, in recent years, not only scrap cars, but also various other scrap objects, such as building waste such as reinforcing bars and window sashes, or pipe waste such as water supply pipes and water distribution pipes, cannot be processed in normal dismantling work, Various scrap objects are gathered in various places and waiting for dismantling. On the other hand, for the dismantling and cutting work of ships, steel frame buildings, plants, large vehicles, etc., we went to the site, cut steel materials etc., loaded them into trucks etc., and transported them as raw materials to steelworks etc. A cutting machine equipped with a large steel cutting nibler in a self-propelled vehicle has been developed (Kobelco Construction Machinery Co., Ltd. “Sherman (trade name)”).

  This cutting machine includes a hydraulically-operated boom mounted on a self-propelled vehicle so as to be turnable and prone, and a scrap-cutting nibler attached to the tip of the boom and opened and closed by remote operation. This cutting nibler is formed so that the rocker beam is connected to the left and right side plates and the front plate so that the plan view is U-shaped.When the rocker beam is turned and closed, an anvil is placed in the inner space of the rocker beam. It is configured to pass through. Further, the cutting blade attached to the rocker beam is divided into an outer peripheral blade and an inner peripheral blade, and the cutting edge of the outer peripheral blade is protruded from the cutting edge of the inner peripheral blade in the cutting direction.

Thereby, when cutting the scrap to be cut, it is possible to cut the portion of the scrap to be cut that is first cut with the outer peripheral blade and then overhangs from the anvil with the inner peripheral blade. That is, a rectangular portion in plan view can be cut from the end face of the scrap to be cut, but the width of the cut is the same as the width of the rocker beam and is considerably wider than the width of the anvil. Therefore, since the scrap to be cut can be cut continuously like cutting paper with a scissors, it is possible to reduce the labor, labor and time in the cutting work of the scrap to be cut such as a steel plate and improve the cutting work efficiency.
Japanese Patent Publication No. 3-78460

  However, with a scrap cutting machine equipped with such a large steel cutting nibler, it is possible to cut the scrap steel well with a large output, but the scrap steel material of the scrap to be cut becomes a blockage of the upper and lower cutting edges at the time of cutting. Depending on the situation, the cutting and crushing blade may escape and the cutting operation may not work.

  In addition, this large steel cutting nibler is large and heavy in order to ensure its strength. Therefore, due to the limitations of the hydraulic motor and power unit, the tip of the hydraulic operation boom cannot be swiveled around the axis, and it is always hydraulic. This is a structure that can only turn in the same direction as the direction of the working boom. For this reason, when the cutting target scrap bites in an inappropriate direction, cutting fails or when cutting the cutting target scrap disposed obliquely with respect to the sandwiching direction, the scrap is rotated according to the clogging of the cutting edge. It could cause danger to the surroundings. For this reason, when cutting the scrap, since it is necessary to face the scrap in the opening / closing direction of the blade edge, it is necessary to move the scrap cutting machine body back and forth and to the left and right and to drive the turning stage. For this reason, a processing yard having a sufficient size is required for scrap cutting. In addition, the cut surface of the scrap to be cut may be slanted, and there may be a risk when the cut material is loaded on a truck or the like and transported on a public road or when it is processed as a recycled raw material at a receiving destination.

  The present invention prevents the scrap to be cut from escaping from a cutting and crushing blade such as a nibler for cutting a large steel material when cutting the scrap to be cut. An object of the present invention is to obtain a scrap cutting work table that can be held so as to be properly bitten.

A scrap cutting work table according to the invention described in claim 1 is a bar-shaped scrap cutting and crushing machine equipped with a cutting and crushing blade that is opened and closed by hydraulic operation at the tip of a hydraulically operated boom that can be turned and raised on a support frame. A cutting work table for cutting a scrap to be cut in a tubular or strip shape,
The scrap to be cut at two places separated from each other in the axial direction of the scrap with the cut target part in between so that the cut target part of the scrap to be cut faces the opening / closing gap of the cutting crushing blade within the movable range of the boom And first and second pedestals for supporting the first and second pedestals, and fixing means for maintaining the first and second pedestals in a predetermined relative positional relationship with the scrap cutting crusher at least during the cutting operation. It is characterized by comprising.

  A scrap cutting work table according to a second aspect of the present invention includes a pair of support arms to which the fixing means according to the first aspect is connected to a scrap cutting and crushing machine, and the first and second pedestals are the pair. It is provided in the opening-and-closing front-end | tip part side of this support arm.

  A scrap cutting work table according to the invention described in claim 3 is provided with stopper means for preventing the movement of the scrap to be cut due to the reaction force when the first and second pedestals according to claim 1 or 2 are cut. It is characterized by that.

  According to a fourth aspect of the present invention, there is provided a scrap cutting work table characterized in that the stopper means according to the third aspect includes a flange provided on the pedestal.

  The scrap cutting work table according to the invention described in claim 5 is characterized in that the stopper means according to claim 4 includes a clamp tool for preventing the cutting object scrap from jumping out from the collar portion during the cutting work. Is.

  The present invention prevents the cutting target scrap from escaping from the cutting and crushing blade when cutting the cutting target scrap. Moreover, even if it is not a wide processing yard, there exists an effect that it can hold | maintain so that a scrap may always become suitable biting in the case of a cutting | disconnection.

  In the present invention, a scrap to be cut in a rod-like, tubular, or strip-like shape by a scrap cutting and crushing machine equipped with a cutting and crushing blade that is opened and closed by hydraulic operation at the tip of a hydraulically operated boom that can be turned and raised on a support frame A cutting work table for cutting the scrap of the scrap with the cutting target portion in between so that the cutting target portion of the cutting target scrap faces the open / close gap of the cutting crushing blade within the movable range of the boom. First and second pedestals for supporting the scrap to be cut in a lying state at two locations separated on both sides in the axial direction, and a scrap cutting and crushing machine for each of the first and second pedestals at least during the cutting operation Fixing means for maintaining a predetermined relative positional relationship. Thereby, it is possible to prevent escape from the cutting and crushing blade at the time of cutting the scrap to be cut in the shape of a rod, tube, or strip.

  Here, the support frame refers to a fixed frame installed in a scrap processing yard in a fixed installation type scrap cutting and crushing machine, and a frame provided on the body of a self-propelled vehicle in a self-propelled scrap cutting and crushing machine. .

  Specifically, as the fixing means for the cutting work table of the present invention, the first and second pedestals should be kept in a predetermined relative positional relationship with the scrap cutting and crushing machine at least during the cutting work. That's fine. That is, the cutting work table may be installed in the scrap work yard as long as it faces the opening and closing gap of the cutting and crushing blade. Preferably, the cutting work table of the present invention is attached to the scrap cutting and crushing machine by a fixing means. It is better to be connected.

  As a preferred embodiment, the fixing means of the present invention includes a pair of support arms connected to the scrap cutting and crushing machine, and the first and second pedestals are provided on the opening / closing front end side of the pair of support arms. Things. That is, more preferably, a base for maintaining the level of the arms may be provided at the lower ends of the ends of the pair of support arms connected to the scrap cutting and crushing machine. The pair of support arms may be a pair of left and right that can be inserted with a cutting and crushing blade between them, for example, a plane having a U shape, a U shape, a V shape, or the like.

  Further, the pair of support arms may be capable of being opened and closed to the left and right. In this case, for example, a pair of cutting scissors blades and each of the pair of cutting scissors blades are arms of the pair of horizontal opening / closing arms. The blade blade pivot support shaft that is pivotally connected to the vehicle body at one end near the fulcrum, and the other end of each pair of cutting blades and the pair of horizontal open / close arms can be pivoted. A cutting rod provided with a pair of link levers to be connected may be provided at a position near the arm pivot fulcrum of the pair of horizontal opening and closing arms.

  In addition, a pair of opposed cups for holding the scrap object sandwiched from both sides according to the closing movement of the pair of horizontal opening / closing arms, and the covered electric wire to be scraped from the surroundings according to the closing movement of the pair of horizontal opening / closing arms. While holding the covered electric wire, the peeling tool that tears and peels the outer sheath of the covered electric wire in accordance with the pulling operation of the core wire of the covered electric wire with the hydraulic operation boom and the cutting and crushing blade, and a pair of horizontal opening and closing arms You may further provide a pair of break tool for crushing or fracture | rupturing a scrap target object from both sides according to a closing motion.

  As a more specific configuration of the scrap cutting work table, the scrap shaft is disposed with the cutting target portion in between so that the cutting target portion of the scrap to be cut faces the opening / closing gap of the cutting crushing blade within the movable range of the boom. The first and second pedestals may be provided to support the scrap to be cut in a lying state at two locations separated on both sides in the direction. Preferably, the first and second pedestals have reaction forces at the time of cutting. Stopper means for preventing the movement of the scrap to be cut by. Thereby, even if it is not a wide processing yard, it can finely adjust so that a scrap may not rotate at the time of cutting, and the cut surface of the scrap for cutting does not become slanting.

  This stopper means can adopt various shapes. For example, it is possible to stop the scrap to be cut or to keep the scrap fitted and to prevent movement in the front-rear direction at the time of cutting, but as a more preferable aspect, stopper means is provided on the pedestal Equipped with a buttock. Thereby, it is possible to prevent the scrap from moving in the front-rear direction during cutting with a simple structure. In addition, as for the collar part in this invention, the scrap which should be cut should just be hold | maintained at the hollow between the front and back ridgeline, and the hollow holding scrap was formed between the pair of front and rear projecting pieces projecting from the pedestal surface. A thing may be sufficient and the thing formed by shaving a base surface in concave shape may be used.

  The pair of front and rear projecting pieces projecting from the pedestal surface may be cylindrical, prismatic, conical, pyramidal, or tapered at the base of the scrap to be cut horizontally. It can take various shapes such as one provided with a portion on either the front or back side, or one that is bent so that the projected tip part covers the part to be cut.

  Furthermore, as a preferable aspect of the present invention, the stopper means includes a clamp that prevents the scrap to be cut from jumping out from the collar portion during the cutting operation.

  FIG. 1 is a side view showing the configuration of an embodiment of the scrap cutting work table of the present invention. FIG. 2 is a side view of a self-propelled scrap cutting crusher equipped with the scrap cutting work table shown in FIG. FIG. 3 is a plan view of the scrap cutting crusher shown in FIG. As shown in FIG. 2, a self-propelled vehicle 1 is equipped with a turning stage 2 driven by engine output or electric power supplied from an external power source, and a hydraulic pressure generator 5 is mounted behind the stage 2. ing.

  On the stage 2, an operation cabin 3 is provided on the left side of the front so as to face forward when traveling, and a hydraulically operated boom 6 is pivotally supported by a hoisting cylinder 7 at the center so as to be raised and lowered. 6 has the cutting crushing blade 4 at the front-end | tip. The boom 6 is folded up and folded at a predetermined angle when the vehicle 1 is conveyed by a trailer truck or the like.

  The cutting and crushing blade 4 includes a rocker beam 21 and an anvil 22, and the rocker beam 21 is formed so that the left and right side plates and the front ends of the side plates are connected by a front plate so that the plan view is U-shaped. . The anvil 22 is passed through the inner space of the rocker beam 21 when the rocker beam 21 is rotated, and the cutting blade 23 is attached along the front side of the left and right side plates and the front plate of the rocker beam 21. Has been.

  The cutting blade 23 is formed by dividing it into an outer peripheral blade 24 on the outer peripheral side and an inner peripheral blade 25 on the inner peripheral side, and is formed by protruding the cutting edge of the outer peripheral blade in the cutting direction from the cutting edge of the inner peripheral blade. When the rocker beam 21 is closed to cut the cutting target scrap, the cutting target scrap is cut first with the outer peripheral blade 24, and then the cutting target scrap protruding from the anvil 22 is cut with the inner peripheral blade 25. It is configured as follows.

  Further, a support block 8 is attached to the front portion of the vehicle 1 so as to be able to lie up and down by a horizontal pivot shaft 9, and the support block 8 is provided with a hydraulic piston cylinder protruding forward from the vehicle body 1. Driven by device 10. A pair of left and right horizontal open / close arms 12a and 12b that can be opened and closed by longitudinal arm pivot fulcrums 11a and 11b arranged close to each other are provided on the front surface of the support block 8 so as to protrude forward. The piston rod ends of the hydraulic piston cylinder devices 13a and 13b for driving the opening and closing movements of the horizontal opening and closing arms with the support block 8 are connected by the slide shafts 14a and 14b. The position is a force point at which the opening / closing operation force acts.

  The upper end portions of the pair of left and right horizontal open / close arms 12a and 12b are used as a work table. That is, the scrap to be cut is horizontally mounted on the upper ends of the horizontal opening / closing arms 12a and 12b, and the cutting blade composed of the rocker beam 21 and the anvil 22 of the cutting and crushing blade 4 is interposed between the pair of horizontal opening / closing arms 12a and 12b. It is made to enter, and the rocker beam 21 and the anvil 22 are hydraulically driven so as to close the scrap to be cut. Also, a base 33 is formed at the lower end of the pair of left and right horizontal open / close arms 12a and 12b to maintain the level of the arms.

  At the time of cutting, the scrap to be cut is placed in the recess between the front and rear ridge lines at the upper end of the pair of left and right horizontal opening / closing arms 12a and 12b as stopper means for preventing movement of the scrap to be cut due to the reaction force at the time of cutting. A hook 30 to be held is formed. The flange 30 is formed by a pair of front and rear projecting pieces 31 and 32 projecting from the upper surfaces of the horizontal opening / closing arms 12a and 12b, and a recess between the pair of projecting pieces 31 and 32. Since the scrap to be cut is horizontally mounted between the pair of front and rear projecting pieces 31 and 32 of each of the pair of horizontal opening and closing arms 12a and 12b, the scrap to be cut is front and rear when being cut by the cutting and crushing blade 4. Movement in the direction is prevented.

  Further, each of the front protruding pieces 31 covers the cutting target scrap held between the pair of protruding pieces 31 and 32 from above to prevent the cutting target scrap from jumping out from the collar portion during the cutting operation. A clamp tool 34 is provided. Specifically, the clamp tool 34 is prone about the fulcrum 36 by a hydraulic device 35 installed on the front side of the front protruding piece 31. After the scrap to be cut is held between the pair of projecting pieces 31 and 32, the clamp tool 34 is turned down to prevent the scrap to be cut from moving upward during cutting.

  About the collar part of a horizontal opening-and-closing arm front-end | tip part, various shapes can be employ | adopted according to the kind, material, etc. of scrap for cutting. 4 to 9 are side views of the tip of the horizontal opening / closing arm of another embodiment. 4 has a pair of protruding pieces 41 and 42 that do not have the clamp 35 shown in FIG. 3, and the opposed surfaces of the pair of protruding pieces 41 and 42 are not inclined. 5 has a pair of projecting pieces 51 and 52 that do not have the clamp 35 shown in FIG. 3, and the opposing surfaces of the pair of projecting pieces 51 and 52 are inclined.

  6 has a pair of protruding pieces 61 and 62 that do not have the clamp tool 35 of FIG. 3, and a protrusion 64 protrudes from the front end of the protruding piece. 7 has a pair of protruding pieces 71 and 72 that do not have the clamp 35 shown in FIG. 3, the front surface of the pair of protruding pieces 51 and 52 is a concave curved surface, and the rear is inclined. Is. 8 has a pair of protruding pieces 81 and 82 that do not have the clamp 35 shown in FIG. 3, and the opposing surfaces of the pair of protruding pieces 51 and 52 are concave curved surfaces. 9 has a pair of projecting pieces 91.92 in which the front projecting piece 91 is bent toward the vehicle body side.

It is a side view which shows the structure of one Example of the scrap cutting worktable of this invention. FIG. 2 is a side view of a scrap cutting machine provided with the scrap cutting work table shown in FIG. It is a top view of the scrap cutting machine shown in FIG. It is a side view of the horizontal opening-and-closing arm front-end | tip part of another Example. It is a side view of the horizontal opening-and-closing arm front-end | tip part of another Example. It is a side view of the horizontal opening-and-closing arm front-end | tip part of another Example. It is a side view of the horizontal opening-and-closing arm front-end | tip part of another Example. It is a side view of the horizontal opening-and-closing arm front-end | tip part of another Example. It is a side view of the horizontal opening-and-closing arm front-end | tip part of another Example.

Explanation of symbols

1 ... Self-propelled vehicle,
2 ... swivel stage,
3 ... driving cabin,
4 Cutting and crushing blade,
5 ... hydraulic generator,
6 ... hydraulically operated boom,
7 ... undulating cylinder,
8: Support block,
9… Horizontal pivot,
10: Hydraulic piston cylinder device,
11a: Vertical arm pivot point,
11b: Vertical arm pivot point,
12a ... Horizontal open / close arm,
12b ... Horizontal open / close arm,
13a ... Hydraulic piston cylinder device,
13b ... Hydraulic piston cylinder device,
14a ... slide shaft,
14b ... the smooth shaft,
21 ... Rocker Beam,
22 ... anvil,
23: Cutting blade,
24 ... outer peripheral edge blade,
25 ... Inner peripheral edge,
30 ... buttocks,
31 ... projecting piece,
32 ... projecting piece,
33 ... the base,
34… Clamp tool,
35 ... hydraulic device,
36… fulcrum,
40 ... buttocks,
41 ... protruding piece,
42 ... projecting piece,
50 ... buttocks,
51 ... projecting piece,
52 ... projecting piece,
60 ... buttocks,
61 ... projecting piece,
62 ... projecting piece,
64 ... protrusions,
70… buttocks,
71 ... projecting piece,
72 ... projecting piece,
80… buttocks,
81 ... projecting piece,
82 ... projecting piece,
90… buttocks,
91 ... projecting piece,
92 ... projecting piece,

Claims (5)

For cutting scraps to be cut in a rod-like, tubular, or strip-like shape by a scrap-cutting crusher equipped with a cutting-breaking blade that opens and closes by hydraulic operation at the tip of a hydraulically-actuated boom that can turn and prone on a support frame Cutting work table,
The scrap to be cut at two places separated from each other in the axial direction of the scrap with the cut target part in between so that the cut target part of the scrap to be cut faces the opening / closing gap of the cutting crushing blade within the movable range of the boom And first and second pedestals for supporting the first and second pedestals, and fixing means for maintaining the first and second pedestals in a predetermined relative positional relationship with the scrap cutting crusher at least during the cutting operation. A scrap cutting work table characterized by comprising:   The fixing means includes a pair of support arms connected to the scrap cutting and crushing machine, and the first and second pedestals are provided on the open / close tip end side of the pair of support arms. Scrap cutting platform as described.   The scrap cutting work table according to claim 1 or 2, wherein the first and second pedestals are provided with stopper means for preventing movement of the scrap to be cut due to a reaction force at the time of cutting.   4. The scrap cutting work table according to claim 3, wherein the stopper means includes a flange provided on the pedestal. 5. The scrap cutting work table according to claim 4, wherein the stopper means includes a clamp tool that prevents the scrap to be cut from jumping out from the collar portion during the cutting work.

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