JPH069789U - Cutting device for compression processor - Google Patents

Abstract

(57) [Summary] [Purpose] A casing that improves the compression operation of a metal dust compression machine that reduces the volume by compressing metal dust such as Dalai powder, chips and empty cans generated in machine factories. It is a simple and durable cutting device that cuts metal dust caught between the hopper and the hopper. [Structure] The cutting device 11 includes a fixed cutting blade 11a, a movable cutting blade 11b provided to face the fixed cutting blade 11a, and a pair of cutting blades. The fixed cutting blade 11a is the hopper 4 of the compression processor.
The movable cutting blade 11b is detachably attached to the edge of the front end of the opening at the lower end by a bolt as a fixing means, and the movable cutting blade 11b is detachably attached to the edge of the upper end of the compression plate 6 by a bolt. The fixed cutting blade 11a has an L-shaped cross section, and the movable cutting blade is formed as a rectangular cross section with symmetrical blade corners, and moves inside the casing when the compression plate 6 moves.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cutting device used in a compression processor for compressing metal dust.

[0002]

[Prior art]

 Generally, a compression processor for shrinking metal dust is provided with a hopper at an appropriate position of the casing, and a compression plate for compressing the metal dust input from the hopper is slid by a drive unit such as a hydraulic cylinder. It is configured to press freely, and the compressed metal dust is taken out from the opening / closing lid provided at the other end of the casing.

[0003]

[Problems to be solved by the device]

 However, in the conventional general compression processing machine described above, a cutting device that cuts metal dust that has been introduced into the hopper from the casing even if metal dust is connected from the casing to the hopper when the metal dust is compressed in the casing. Is not provided. Therefore, when the compression plate passes through the opening of the hopper, the metal dust connected to the hopper is caught and cannot move, or even if it can move, the force pressing the compression plate becomes large. However, there is a problem that it cannot be compressed efficiently.

The present invention has been made in consideration of the problems of the above-described conventional compression processing machine, and has a simple structure, low cost, and the cutting blades are detachable, and one blade has a square blade portion. It is an object of the present invention to provide an economical cutting device that can use all of the above.

[0005]

[Means for Solving the Problems]

 As a means for solving the above-mentioned problems, the present invention provides a hopper at an appropriate position of a casing, and a metal hopper is provided at the edge of the opening front end of the hopper of a metal dust compression processing machine for compressing metal dust introduced from the hopper with a compression plate. Fixed cutting blades and a pair of moving cutting blades provided on the upper edge of the compression plate so as to face the above-mentioned cutting blades. Both cutting blades are detachably attached to their respective edges by fixing means and moved. The cutting blade was configured as a cutting device for a compression processor, which had a rectangular cross-section with symmetrical corners.

[0006]

[Action]

 In the cutting device of the present invention configured as described above, when the compression plate is pressed by the compression processor to compress the metal dust, the metal dust introduced from the hopper is caught between the casing and the hopper. Alternatively, when connected as a linear strip, the metal dust is cut by the pressing force of the compression plate, so that the compression plate can easily be inserted into the casing.

Since the cutting blades are detachably fixed by the fixing means, they can be easily replaced when the blades are worn out due to wear. In particular, the moving cutting blade has the advantage that it can be used for an extremely long period of time because it can use all square blades.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an external perspective view of a cutting device according to an embodiment. As will be described later, this cutting device 11 is used in a metal dust compression processing machine, and cuts a lump of metal dust or an elongated connected portion when compressing the metal dust put in the hopper. Then, it is provided in order to operate the compression process efficiently.

The cutting device 11 comprises a pair of a fixed cutting blade 11a and a movable cutting blade 11b provided so as to face the fixed cutting blade 11a. The fixed cutting blade 11a is detachably fixed to the edge of the front end of the opening at the lower end of the hopper 4 by a bolt as a fixing means, and the moving cutting blade 11b is detachably attached to an upper edge of the compression plate 6 by a bolt as a fixing means. It is fixed and movable as the compression plate 6 moves.

FIG. 2 shows a state in which the compression plate 6 is moved forward and the pair of cutting blades 11a and 11b are engaged with each other. As described above, the meshing of the cutting blades 11a and 11b makes it possible to cut the lump of metal sandwiched between the cutting blades 11a and 11b and the metal dust on the elongated filaments.

The fixed cutting blade 11a is made of a postal material, and has a rectangular cross section as shown in the drawing, and is inserted from a slit provided at a boundary portion with a flange at a lower front end of the hopper 4 and attached by a bolt. To be done. The blade is cut at an inclination angle α = 0 to 10 ° as shown in FIG. Reference numeral 15 denotes a pillow member fixed to the casing side, to which a fixed cutting blade 11a is attached by a bolt 11c.

The moving cutting blade 11b is also made of a scraping material, and as shown in the drawing, the blade corners have a rectangular cross section that is completely opposite to each other. Therefore, any of the four corners of the rectangular cross section can be used by changing the mounting direction. 11d is a mounting bolt.

FIG. 3 shows an example of a metal dust compression processor equipped with the above cutting device. This compression processing machine is an example, and it goes without saying that it may be of any other formation.

The illustrated metal dust compression processor is shown as a main longitudinal sectional view including a partial side view. As shown in the figure, this metal dust compressing machine 1 comprises a double casing having an outer casing 2 and an inner casing 3. The outer casing 2 is a casing having a rectangular cross section over the entire length, and the inner casing 3 is approximately half the length of the outer casing 2 and is slidably inserted into the left half of the outer casing 2 shown in the figure. (The state shown in the figure is the normal position), and the right end is cut diagonally.

A hopper 4 is fixedly provided to the inner casing 3 near the front end of the central portion of the outer casing 2 (on the left side in the center of the figure), and metal dust is introduced from an opening penetrating the outer casing 2 and the inner casing 3. It is configured to be able to.

An opening / closing lid 5 is attached to the left end opening of the outer casing 2, and the compressed metal dust can be taken out by using the opening / closing lid 5.

A compression plate 6 that slidably moves in the inner casing 3 and a guide block 7 formed integrally with the compression plate 6 are fitted and inserted near the right end of the inner casing 3 (near the center of the outer casing 2). The compression plate 6 moves in the inner casing 3 for the compression of metal dust by the forward / backward movement of the cylinder 8 connected thereto. The cylinder 8 is driven by a hydraulic pump 9 (hydraulic pipes, control valves, etc. are not shown).

A lock mechanism 10 for locking the inner casing 3 with respect to the outer casing 2 at the normal position shown in the figure is provided near the lower right end of the inner casing 3. When the open / close lid 5 is opened and the compressed metal dust is taken out, the lock is released by depressing the foot pedal of the lock mechanism 10 before the open / close lid 5 is suddenly opened by the internal pressure generated by the compression of the metal dust. You can

In FIG. 3, the right side of the reinforcing flange 12 of the outer casing 2 is shown as a cross section, and the left side is shown as a side surface. Reference numeral 13 is a moving roller.

The compression plate 6 and the guide block 7 integrally attached thereto are shown in a perspective view in FIG. 4 and a sectional view in FIG. As can be seen from FIG. 4, the guide block 7 has a shape in which a square shoe is inverted, and includes a side plate 7a, a top plate 7b, and a bottom plate 7c, and the compression plate 6 is attached to the front end thereof. A cross-shaped reinforcing rib 6a and an annular member 6b are attached to the center of the rear surface (inside the guide block 7) of the compression plate 6, and the rod end 8a of the cylinder 8 is screwed into the annular member 6b. There is. The other end of the cylinder 8 is fixed to the lateral frame 8b of the outer casing. The compression plate 6 is inclined at an inclination angle α of 10 to 15 ° as shown.

FIG. 5 shows an external perspective view of the opening / closing lid 5. This opening / closing lid 5 is a hinge arm in which a lid plate 5a that closes the opening 2c at the front end of the outer casing 2 is reinforced by a cross-shaped rib 5b, and a handle 5c is provided on a lower horizontal hinge (not shown). It consists of one fixed at 5e '. When closing the cover plate 5a, a hinge arm 5e having a U-shaped cross section supported by a rotary hinge 5d mounted on three sides of the front end of the outer casing 2 is meshed with each other, and a small hole provided at the tip of the rib 5b. Insert the wedge 5f into and fix it. The hinge arm 5e 'is divided into two parts so that the tips of the ribs 5b can be fitted to each other.

Details of the lock / engagement mechanism 10 are shown in FIGS. 6 and 7. As shown in the figure, the lock / engagement mechanism 10 includes a lock member provided with a protrusion 16 at a predetermined position of a lever 17 and a vertical rod 18 vertically moved by a vertical rod 18 provided near the center of the lever 17 of the lock member. And an engaging portion including the flap 19.

The lock member has one end of a lever 17 provided with the protrusion 16 and the vertical rod 18 attached to the bottom and back surfaces of the outer casing 2 through a hinge 17a in a transverse shape, and protrudes through the support frame 20. The end is elastically supported by a spring 21 attached to the outer casing 2, and a foot pedal 22 is attached to the end. Reference numeral 18a is an arm for attaching the vertical rod 18 to the lever 17.

The engaging portion is formed by attaching the flap 19 to a hinge lever 24 that rotatably supports the flap 19 around the hinge 23.

Normally, since the inner casing 3 is locked with respect to the outer casing 2 at the position shown in FIG. 1, the lock member is supported horizontally by the spring 21, and the protrusion 16 is provided on the bottom surface of the double casing. It is made to penetrate into the recessed portion 16a provided in the. When the inner casing 3 is retracted with respect to the outer casing 2 by a predetermined distance in order to release the internal compression of metal dust (up to the position indicated by the alternate long and short dash line in FIG. 7), the pedal 22 is stepped on with a foot. When the engagement is released and the flap 19 is lowered by its own weight and fitted between the side plate 7a of the guide block 7 and the lateral plates 3a extending to the left and right of the inner casing, the cylinder 8 is operated rearward to move the guide block 7 This is performed by retracting and transmitting the rearward driving force to the inner casing 3 via the flap 19.

When the inner casing 3 is returned to this normal position, the piston of the cylinder 8 is projected forward and the compression plate 6 is moved to the foremost end, and then the return lever 7d attached to the side plate 7a of the guide block 7 is used. The end of the inner casing 3 is pushed back, which returns the inner casing 3 to its original position.

In the compression processor of the embodiment configured as described above, the metal dust is compressed as follows.

Before throwing in the metal dust, after confirming that the inner casing 3 has been returned to the state shown in FIG. 3 in advance, the metal dust is thrown in from the hopper 4. When the metal dust is filled inward to some extent, the cylinder 8 is driven to move the compression plate 6 forward so that the metal dust is pushed forward and compressed. At this time, even if some of the metal dust is coming out of the double casing while being connected to the hopper 4, the cutting blade 11b above the compression plate 6 is cut by the action of the mating cutting blade 11a and is smoothly pushed.

When the metal dust is pushed in, the volume of the metal dust is compressed to a fraction and the volume is reduced. In this embodiment, the pressing force of the hydraulic cylinder 8 is, for example, about 20 tons against a metal aluminum can or an iron can, and about 50 tons against metal dust or chips commonly called Dalai powder. There is.

Since the volume is reduced when the metal dust is compressed by the pressing force, the compression plate 6 is returned to the original position again, and the metal dust is additionally charged. When the metal dust is compressed by the compression plate 6 several times in this way, the space near the front end is filled with the compressed metal dust due to the opening of the hopper 4 in the double casing. A full amount of metal dust weighs about 40 kg for Dalai powder and about 20 kg for aluminum cans, and has a capacity of 5-6 cups in a drum can.

If the opening / closing lid 5 is immediately opened when the metal dust compressed in this way is taken out, it is dangerous because the lid plate 5a is pushed by the internal pressure of the metal dust as described above. Therefore, first, before that, the inner casing 3 is slightly retracted with respect to the outer casing 2 from the position shown in FIG. Therefore, the foot pedal 22 is stepped on with the foot to push down the lever 17, and the protrusion 16 of the lever 17 is disengaged. At this time, at the same time, the vertical rod 18 attached to the lever 17 is also pushed down, so that the flap 19 is also lowered by its own weight, and as described above, the flap 19 is placed between the side plate 7a of the guide block and the lateral plate 3a of the inner casing. Mating. As a result, when the rod of the hydraulic cylinder 8 is retracted, the inner casing 3 can be retracted by a predetermined distance.

At this time, since the hopper 4 is integrally attached to the top of the opening of the inner casing 3, the hopper 4 also retracts together with the inner casing 3, but as can be seen from FIG. 3c and the thick plate at the top of the outer casing 2 and the flange at the position where the top plate 2a is attached can be retracted by a gap provided.

When the inner casing 3 is retracted as described above, the internal pressure applied to the lid plate 5a is released, so the lid plate 5 is opened in this state. As shown in FIG. 5, when the wedge 5f is pulled out, the hinge arm 5e can be opened by hand, and the three hinge arms 5e are opened as shown on the right side of the drawing. After that, when the handle 5c is manually operated and the lid plate 5a is tilted to the state shown by the alternate long and short dash line, the opening 2c of the double casing is opened. When the hydraulic cylinder 8 is pushed further, the metal dust easily protrudes from the opening 2c, and when the metal dust is pulled out by hand, the metal dust is taken out.

[Brief description of drawings]

FIG. 1 is an external perspective view of a cutting device according to an embodiment.

FIG. 2 is a view showing a cutting state by the above cutting device.

FIG. 3 is a main vertical cross-sectional view including a partial side view of a metal dust compression processor given as an example.

FIG. 4 is a view showing the mutual relationship of the configurations of the outer casing, the inner casing, and the hopper of the above.

FIG. 5 is an external perspective view of the opening / closing lid.

FIG. 6 is an enlarged sectional view of a lock / engagement mechanism.

FIG. 7 is a sectional view taken along line VII-VII in FIG.

[Explanation of symbols]

 1 Metallic Waste Compressor 2 Outer Casing 3 Inner Casing 4 Hopper 5 Open / Close Lid 6 Compression Plate 7 Guide Block 8 Hydraulic Cylinder 9 Hydraulic Pump 10 Lock / Engagement Mechanism 11 Cutting Blade 11a Fixed Cutting Blade 11b Moving Cutting Blade 14 Opening 15 Pillow Member 16 Protrusion 17 Lever 18 Vertical rod 19 Flap 22 Foot pedal 23 Hinge

Claims (1)

[Scope of utility model registration request] 1. A fixed cutting blade provided at an edge of a front end of an opening at a lower end of a hopper of a metal dust compressing machine, in which a hopper is provided at an appropriate position of a casing, and metal dust introduced from the hopper is compressed by a compression plate. It consists of a pair of moving cutting blades provided on the upper edge of the compression plate so as to face the above-mentioned cutting blades, both cutting blades being detachably attached to each edge by fixing means, and the moving cutting blades have their blade angles. A cutting device for a compression processor, characterized in that a section has a symmetrical rectangular cross section.