JP6865092B2 - Recycled tire grinding equipment - Google Patents

Description

The present invention relates to a recycle tire cutting device used for cutting a worn outer peripheral portion of a used tire such as a waste tire.

Conventionally, in tire recycling factories that recycle used tires of large vehicles such as buses and trucks, a remanufacturing tire cutting device has been used in order to cut off a worn outer peripheral portion of the used tire.

The regeneration tire cutting device holds a wheel on which the regeneration tire is mounted, and rotates the regeneration tire together with the wheel around a horizontal rotation axis, and rotates in a rotation direction predetermined by the rotation drive unit. It includes a cutting portion having a fixed blade for cutting the outer peripheral portion of the regenerated tire, and a support structure portion that movably supports the cut portion along the outer peripheral portion of the regenerated tire.

The support structure portion is for moving the fixed blade along the first moving axis parallel to the rotating axis of the rotation driving unit and the second moving axis perpendicular to the first moving axis on the horizontal plane including the first moving axis. , The feed shaft realized by the ball screw mechanism or the like is rotated by the rotation operation of the operation handle by the operator, whereby the fixed blade is moved in the direction parallel to the first moving axis and the direction parallel to the second moving axis. Therefore, the cutting edge of the fixed blade is moved along a cutting path corresponding to the size of the regenerated tire, and the worn outer peripheral portion of the regenerated tire can be cut and removed (for example, a patent). See Document 1).

Japanese Unexamined Patent Publication No. 2007-326275

In the above-mentioned conventional technique, since the fixed blade is moved by the operation of the operator, it takes a long time to cut the outer peripheral portion of one remanufactured tire, and the efficiency of the cutting work of the outer peripheral portion of the regenerated tire is efficient. Has the problem of being bad.

An object of the present invention is to provide a regenerated tire cutting device capable of improving the efficiency of the work of cutting the outer peripheral portion of the regenerated tire.

The present invention includes a rotation drive unit that holds a regeneration tire and rotates the regeneration tire in a predetermined rotation direction around a horizontal rotation axis.
A tire cutting portion having a cutting blade that cuts the outer peripheral portion of a regenerated tire rotated by the rotary drive portion .
A peeling cutting portion having a fixed blade having a cutting edge facing the upstream side in the rotation direction of the remanufacturing tire.
Tire cutting having a rasp cutting portion having a plurality of rotary blades that are separated from the fixed blade on the upstream side in the rotational direction and are rotationally driven around the rotary axis perpendicular to the horizontal plane on a horizontal plane including the rotary axis. Department and
A displacement drive unit that moves the tire cutting portion along a second moving axis perpendicular to the first moving axis on a horizontal plane including a first moving axis parallel to the horizontal rotation axis and the first moving axis. ,
A control unit that controls the displacement drive unit so that the cutting blade moves along a predetermined cutting path.
With a suction source
The rotary blade has an opening facing a grinding position for grinding a tire for regeneration, is arranged so as to cover the rotary blade, and includes a rust cover body that moves together with the rotary blade.
The regenerated tire cutting device is characterized in that the rasp debris generated by grinding with the rotary blade is guided into the inside of the rasp cover from the opening and collected in a predetermined collection container.

Further, the present invention is characterized in that the tire cutting portion includes a peeling waste carry-out portion for carrying out peeling waste of a recycled tire generated by cutting by the peeling cutting portion.

Further, the present invention is characterized in that the tire cutting portion includes a rust scrap carry-out portion that carries out the rust scrap of the regenerated tire generated by cutting by the rust cutting portion.

According to the present invention, the regeneration tire is held by the rotation drive unit, and the regeneration tire is rotationally driven by the rotation drive unit in a predetermined rotation direction around a horizontal rotation axis. The tire cutting portion is moved by the displacement drive portion along the second moving axis perpendicular to the first moving axis on the horizontal plane including the first moving axis parallel to the horizontal rotation axis and the first moving axis. The control unit controls the displacement drive unit to move along the first moving axis and the second moving axis so that the cutting blade moves along a predetermined cutting path, and the outer peripheral portion of the remanufactured tire is a tire. The fixed blade of the cutting portion cuts along a predetermined cutting path, and the worn outer peripheral portion of the remanufactured tire is cut off. This improves the efficiency of the work of cutting the outer peripheral portion of the recycled tire along a predetermined cutting path, and accurately and continuously cuts the outer peripheral portion of the recycled tire due to wear and deterioration. And can be removed, and the efficiency of the work of cutting the outer peripheral portion of the remanufactured tire can be remarkably improved as compared with the conventional technique.

Further, according to the present invention, since the tire cutting portion includes a peeling cutting portion having a fixed blade having a cutting edge facing upstream in the rotation direction of the regenerated tire, it is possible to shorten the time for cutting the outer peripheral portion of the regenerated tire. Can be done.

Further, according to the present invention, a plurality of rotary blades in which the tire cutting portion is rotationally driven around a rotary axis perpendicular to the horizontal plane on a horizontal plane including the rotation axis and separated from the fixed blade in the rotation direction. Since the lasp cutting portion is included, an unnecessary portion can be further cut from the outer peripheral portion of the regenerated tire after cutting by the peeling cutting portion, and a regenerated tire in which the unnecessary portion is removed can be obtained with high accuracy. ..

Further, according to the present invention, since the tire cutting portion includes the peeling waste carry-out portion for carrying out the peeling waste of the recycled tire generated by the cutting by the peeling cutting portion, the peeling waste may be accumulated around the peeling cutting portion. It is possible to improve the efficiency of the peeling cutting work because it is not necessary to stop the operation of the peeling cutting portion in order to prevent and remove the peeling debris.

Further, according to the present invention, since the tire cutting portion includes a rusting waste carrying-out portion for carrying out the rusting waste of the recycled tire generated by cutting by the rusting cutting portion, the rusting waste may be accumulated around the rusting cutting portion. This is prevented, and it is not necessary to stop the operation of the rasp cutting portion in order to remove the rasp debris, and the efficiency of the rasp cutting work can be improved.

It is a left side view which shows the appearance of the regenerated tire cutting apparatus 1 of one Embodiment of this invention. It is a top view of the tire cutting apparatus 1 for regeneration. It is a front view which looked at the tire cutting apparatus 1 for regeneration from the right side of FIG. It is the left side view which enlarged the vicinity of the peeling cutting part 8 and the rust cutting part 10. FIG. 5 is a plan view of the peeling cutting portion 8 as viewed from above in FIG. It is a rear view which looked at the peeling cutting part 8 and the rust cutting part 10 from the left side of FIG. It is a side view which shows the peeling cutting part 8. FIG. 5 is a plan view of the peeling cutting portion 8 as viewed from above in FIG. 7. It is an enlarged view of the fixed blade 7 and its vicinity. It is a side view which shows the rust cutting part 10. It is a front view which looked at the rust cutting part 10 from the right side of FIG. It is sectional drawing which looked at the carry-out path of the raspe waste of the raspe cutting part 10 from above. FIG. 5 is a cross-sectional view of a state in which the rust cutting portion 10 faces one of the shoulder portions of the regeneration tire T as viewed from above. It is sectional drawing which looked at the state which the rust cutting part 10 was facing the other shoulder part of the regeneration tire T from above.

FIG. 1 is a left side view showing the appearance of the regenerated tire cutting device 1 according to the embodiment of the present invention, FIG. 2 is a plan view of the regenerated tire cutting device 1, and FIG. 3 is a regenerated tire cutting device 1. Is a front view seen from the right side of FIG. The regeneration tire cutting device 1 of the present embodiment has a rotation drive unit 2 that holds the regeneration tire T and rotates the regeneration tire T around a horizontal rotation axis L0 in a predetermined rotation direction A, and a rotation drive unit. The tire cutting portion 3 having the fixed blade 7 and the rotary blade 9 which are the cutting blades for cutting the outer peripheral portion T1 of the regeneration tire T rotated by 2, and the tire cutting portion 3 are arranged parallel to the horizontal rotation axis L0. 1 Cutting in which a displacement drive unit 4 for moving along a second moving axis L2 perpendicular to the first moving axis L1 on a horizontal plane including the moving axis L1 and the first moving axis L1, and a fixed blade 7 and a rotary blade 9 are predetermined. It includes a control unit 5 that controls the displacement drive unit 4 so as to move along the path. The control unit 5 is realized by a computer capable of executing a program for operating the tire cutting device 1 for regeneration.

In the present embodiment, the regeneration tire T is a used tire used by being mounted on a wheel having an outer diameter of 17.5 inches to 22.5 inches among the tires of large vehicles such as buses, trucks and large special automobiles. A tire that can be regenerated by vulcanization. The outer peripheral portion T1 of the remanufactured tire T is a region extending from the tread portion through the shoulder portions on both sides to a part of the sidewall portion, and refers to an outer surface portion that can be cut off including a worn portion.

The tire cutting portion 3 has a peeling cutting portion 8 having a fixed blade 7 having a cutting edge 6 facing the rotation direction A upstream side of the regeneration tire T, and a rotation axis L0 that is separated from the fixed blade 7 on the rotation direction A upstream side. On the horizontal plane including, the rust cutting portion 10 having a plurality of rotary blades 9 rotationally driven around the rotation axis L3 perpendicular to the horizontal plane, and the peeling waste of the regenerated tire T generated by cutting by the peeling cutting portion 8. It includes a peeling waste carry-out unit 11 to be carried out, and a rasp waste carry-out part 12 to carry out the rasp waste of the remanufactured tire T generated by cutting by the rasp cutting unit 10. The peeling debris is a strip-shaped section produced by cutting the regenerated tire T, and the rasp debris is a chip-shaped section produced by grinding the regenerated tire T, a fine powder, or the like.

FIG. 4 is an enlarged left side view of the vicinity of the peeling cutting portion 8 and the rust cutting portion 10, FIG. 5 is a plan view of the peeling cutting portion 8 as viewed from above of FIG. 4, and FIG. It is a rear view which looked at the rust cutting part 10 from the left side of FIG. The peeling cutting portion 8 has a cylindrical fixed blade 7, a fixed blade holder 14 to which the fixed blade 7 is detachably mounted, and a bracket 15 to which the fixed blade holder 14 is fixed. The bracket 15 is fixed to the wall portion of the moving frame body 16 of the peeling cutting portion 8 facing the regeneration tire T mounted on the rotary drive portion 2.

FIG. 7 is a side view showing the peeling cutting portion 8, FIG. 8 is a plan view of the peeling cutting portion 8 as viewed from above of FIG. 7, and FIG. 9 is an enlarged view of the fixed blade 7 and its vicinity. The fixed blade 7 is made of a short cylindrical metal, for example, high carbon bearing steel (SUJ), and is downstream of the rotation direction A by an angle θ1 from the horizontal plane with the rotation axis L0 as the central axis with respect to the horizontal plane including the rotation axis L0. It has an axis L4 perpendicular to a virtual one plane inclined to. Such an angle θ1 is set so that the axis L4 is tangential to the outer peripheral surface of the regeneration tire T mounted on the rotation drive unit 2 on the downstream side of the rotation direction A from the horizontal plane including the rotation axis L0. .. In such a fixed blade 7, a cutting blade having the above-mentioned cutting edge 6 at one end in the L4 direction of the axis facing upward is formed in an annular shape with the fixed blade 7 attached to the fixed blade holder 14. ..

The displacement drive unit 4 moves the fixed blade 7 together with the fixed blade holder 14 and the bracket 15 in the forward direction X1 and the backward direction X2 parallel to the first moving axis L1 and in one direction Y1 parallel to the second moving axis L2. It also has a fixed blade displacement drive unit 41a that moves in the other direction Y2, and a rotary blade displacement drive unit 41b that moves the rotary blade 9 in the forward direction X1 and the backward direction X2 and moves them in one direction Y1 and the other direction Y2. ..

The fixed blade displacement drive unit 41a is supported by a rectangular frame 42a in a plan view, a pair of guide shafts 43a whose ends are fixed to the frame 42a and parallel to each other, and guide shafts 43a so as to be movable in the arrow X1 and X2 directions. It has a first moving body 44a to be formed, a screw shaft 45a arranged between the guide shafts 43a in parallel with the guide shaft 43a, and a pulley 46a fixed to one end in the axial direction of the screw shaft 45a.

A belt 47a is wound around the pulley 46a, the belt 47a is also wound around the other pulley 48a, and the pulley 48a is fixed to the output shaft of the motor M3a. When the motor M3a is rotationally driven, a rotational force is transmitted to the screw shaft 45a via the pulley 48a, the belt 47a, and the pulley 46a, the frame 42a moves in the direction of the arrows X1 and X2 with respect to the moving body 44an, and the frame 42a The fixed blade 6 provided in the above is configured to move in the same direction to move the cutting position of the regeneration tire T.

The rotary blade displacement drive unit 41b is configured in the same manner as the fixed blade displacement drive unit 41a described above, and a subscript b is added to the same number in the corresponding portion to avoid duplication and the description thereof will be omitted.

The second moving bodies 50a and 50b are fixed to the lower surfaces of the first moving bodies 44a and 44b. Each of the second moving bodies 50a and 50b is movably supported by a pair of guide shafts 51a and 51b, and the screw shafts 52a and 52b are via two pulleys and belts whose rotational forces from the motors M4a and M4b are not shown. Is transmitted, and is rotationally driven in the rotational direction corresponding to the arrow Y1 and Y2 directions. By rotating the screw shafts 52a and 52b, the frames 42a and 42b are moved in the directions of the arrows Y1 and Y2, and the rotary blade 9 can be moved in the same direction.

The peeling waste generated by cutting the remanufacturing tire T by the fixed blade 7 is carried out of the device by the peeling waste carry-out unit 11 and collected.

FIG. 10 is a side view showing the rasp cutting portion 10, and FIG. 11 is a front view of the rasp cutting portion 10 as viewed from the right side of FIG. The rasp cutting portion 10 has a rotary blade 9 and a vertical rotary axis L5, and a rotary shaft 18 coaxially fixed to the lower end portion of the rotary blade 9 and a driven shaft 18 coaxially fixed to the upper end portion of the rotary shaft 18. An output in which the pulley 19, the main pulley 20 arranged adjacent to the driven pulley 19, the belt 21 wound and stretched between the driven pulley 19 and the driven pulley 20, and the driven pulley 20 are coaxially fixed. A rotary blade drive motor M1 having a shaft 22 is provided.

FIG. 12 is a cross-sectional view of the rusting debris carry-out path of the rust cutting portion 10 as viewed from above, and FIG. 13 is a cross-sectional view of the rust cutting portion 10 facing one shoulder portion of the remanufacturing tire T as viewed from above. FIG. 14 is a cross-sectional view of the state in which the rust cutting portion 10 faces the other shoulder portion of the remanufactured tire T as viewed from above. When the rotary blade 9 is rotationally driven in the forward rotation direction C1 by the rotary blade drive motor M1 as shown in FIG. 12, the rust cover body 25 is rotated by the cylinder Cy in the reverse rotation direction C2 opposite to the forward rotation direction C1. Then, it comes into contact with the vicinity of one shoulder portion of the regeneration tire T.

As the rasp cutting portion 10 moves in the other direction Y2 by the rotary blade displacement drive portion 41b, the rasp cover body 25 moves from one shoulder portion of the regeneration tire T in the same direction as the rotary blade 9 immediately before the tread portion. Grind to the other shoulder part. When grinding to the other shoulder portion, the rotation direction of the rotary blade 9 is reversed from the forward rotation direction C1 to the reverse rotation direction C2, and grinding is performed again from the other shoulder portion to one shoulder portion via the tread portion.

The rasp debris generated by such grinding by the rotary blade 9 is sucked from the opening facing the grinding position of the regenerated tire T of the rasp cover body 25, sucked by using a suction device such as a blower, and passed through a path such as a duct. , Collected in a predetermined collection container. Further, the fine grinding debris generated by grinding by the rotary blade 9 is carried out to the outside from the grinding debris collection port provided on the floor. A suction force from a suction source (not shown) is guided to such a grinding waste collection port, and dust and the like are forcibly collected to clean the work space.

The regenerated tire T whose outer peripheral portion including the portion worn due to deterioration, wear, etc. is cut off by the fixed blade 7 of the peeling cutting portion 8 described above is formed by the rotary blade 9 of the rasp cutting portion 10 moving in the arrow Y1 direction. In a plan view, the cutting is performed from the left shoulder portion through the tread portion to the right shoulder portion, where the rotation direction is reversed, and the cutting is performed again from the right shoulder portion through the tread portion to the left shoulder portion. Such cutting is achieved by the control unit 5 controlling the rotary blade displacement drive unit 41b and the motor M1 described above so that the rotary blade 7 moves along a crown alignment preset in the control unit 5. To.

As described above, according to the present embodiment, the regeneration tire T is held by the rotation drive unit 2, and the regeneration tire T is rotationally driven by the rotation drive unit 2 in a predetermined rotation direction A around the horizontal rotation axis L0. Will be done. The tire cutting unit 3 is moved by the displacement drive unit 4 along the first moving axis L1 parallel to the horizontal rotation axis L0 and the second moving axis L2 perpendicular to the first moving axis L1 on the horizontal plane.

The control unit 5 is controlled so that the displacement drive unit 4 moves along the first moving axis L1 and the second moving axis L2 so that the fixed blade 7 and the rotary blade 9 move along a predetermined cutting path. To. As a result, the outer peripheral portion T1 of the regenerated tire T is cut along a cutting path predetermined by the fixed blade 7 and the rotary blade 9 of the tire cutting portion 3, and the outer peripheral portion T1 of the regenerated tire T is cut off.

As a result, the efficiency of the work of cutting the outer peripheral portion T1 of the remanufactured tire T along a predetermined cutting path is improved, and the portion of the outer peripheral portion T1 of the regenerated tire T to be cut due to wear, deterioration, etc. It can be removed accurately and continuously, and the efficiency of the cutting work of the outer peripheral portion T1 of the remanufacturing tire T can be remarkably improved.

Further, since the tire cutting portion 3 includes the peeling cutting portion 8 having the fixed blade 7 having the cutting edge 6 facing the rotation direction A upstream side of the regenerating tire T, the time for cutting the outer peripheral portion T1 of the regenerating tire T is increased. Can be shortened.

Further, a plurality of rotary blades 9 in which the tire cutting portion 3 is rotationally driven around the rotary axis L5 perpendicular to the horizontal plane on the horizontal plane including the rotary axis L0 and separated from the fixed blade 7 on the upstream side in the rotation direction A. Since the rust cutting portion 10 having the above is included, an unnecessary portion can be further cut from the outer peripheral portion T1 of the regeneration tire T after cutting by the peeling cutting portion 8, and the unnecessary portion is removed with high accuracy. Can be obtained.

Further, since the tire cutting portion 3 includes the peeling waste carry-out portion 11 for carrying out the peeling waste of the recycled tire generated by the cutting by the peeling cutting portion 8, it is possible to prevent the peeling waste from accumulating around the peeling cutting portion 8. It is not necessary to stop the operation of the peeling cutting section 8 in order to remove the peeling debris, and the efficiency of the peeling cutting work can be improved.

Further, since the tire cutting portion 3 includes the rust scrap carrying-out portion 12 for carrying out the rust scrap of the recycled tire generated by the cutting by the rust cutting portion 10, it is possible to prevent the rust scrap from accumulating around the rust cutting portion 10. It is not necessary to stop the operation of the rust cutting unit 10 in order to remove the rub and the rust dust, and the efficiency of the rust cutting work can be improved.

1 Recycled tire cutting device 2 Rotating drive unit 3 Tire cutting unit 4 Displacement drive unit 5 Control unit 6 Cutting edge 7 Fixed blade 8 Peeling cutting unit 9 Rotary blade 10 Rasp cutting unit 11 Peeling waste carry-out part 12 Rasp waste carry-out part 14 Fixed blade Holder 15 Bracket 16 Moving frame A Rotating direction L0 Rotating axis L1 1st moving axis L2 2nd moving axis L3, L5 Rotating axis T Regeneration tire T1 Outer circumference

Claims (3)

A rotation drive unit that holds the regeneration tire and rotates the regeneration tire in a predetermined rotation direction around a horizontal rotation axis.
A tire cutting portion having a cutting blade that cuts the outer peripheral portion of a regenerated tire rotated by the rotary drive portion .
A peeling cutting portion having a fixed blade having a cutting edge facing the upstream side in the rotation direction of the regeneration tire, and a peeling cutting portion.
Tire cutting having a rasp cutting portion having a plurality of rotary blades that are separated from the fixed blade on the upstream side in the rotational direction and are rotationally driven around the rotary axis perpendicular to the horizontal plane on a horizontal plane including the rotary axis. Department and
A displacement drive unit that moves the tire cutting portion along a second moving axis perpendicular to the first moving axis on a horizontal plane including a first moving axis parallel to the horizontal rotation axis and the first moving axis. ,
A control unit that controls the displacement drive unit so that the cutting blade moves along a predetermined cutting path.
With a suction source
The rotary blade has an opening facing a grinding position for grinding a tire for regeneration, is arranged so as to cover the rotary blade, and includes a rust cover body that moves together with the rotary blade.
A regenerating tire cutting device characterized in that the rasp debris generated by grinding with the rotary blade is guided into the inside of the rasp cover from the opening and collected in a predetermined collection container. The regenerated tire cutting device according to claim 1 , wherein the tire cutting portion includes a peeling debris carrying-out portion for carrying out peeling debris of a regenerated tire generated by cutting by the peeling cutting portion. The regenerated tire cutting device according to claim 1 , wherein the tire cutting portion includes a rasp waste carrying out portion for carrying out the rasp waste of the regenerated tire generated by cutting by the rasp cutting portion.

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