JP3139718U - Waste rubber ring breaking device - Google Patents

Abstract

In a rubbing device for a waste rubber ring, there is provided a structure of a rotating blade for the purpose of improving breaking efficiency and preventing deterioration of the rotating blade and a fixed blade.
A main cutting edge piece or a sub cutting edge piece is fixed to a fixed blade having a plurality of concave portions, and a main cutting edge piece and a sub cutting edge piece on the outer periphery of a rotary blade, and a recess on a side surface. When passing through the concave portion of the blade, the waste rubber wheel is bitten by the rotary blade 6 and the fixed blade and enters the space between the concave portion and the rotary blade 6 in a compressed state. A part of the waste rubber ring that is slid in accordance with the movement in the opposite direction relative to, and that is slid and broken enters the recess 10 passing through the recess, and the opening of the recess 10 By swelling toward the bottom, by escaping from sliding and breaking, the power of the rotary blade 6 necessary for sliding, frictional force and frictional heat generated by sliding are reduced, and the breaking efficiency is improved. Improvement, prevention of deterioration of the rotary blade 6 and the fixed blade can be realized.
[Selection] Figure 1

Description

  The present invention relates to an apparatus for breaking a waste rubber ring.

  Conventionally, in order to reuse a waste tire, the waste tire is cut into several waste tire chips as a pretreatment process, and then is crushed and separated into rubber chips and wires by a crushing and separating device.

  By the way, in the pre-processing step of the waste tire, the waste tire is cut by the cutting unit after the holding arm and the support member are fixed to the device in cooperation with each other as in the device described in Japanese Patent Application Laid-Open No. 2003-094385. It becomes a waste tire chip.

Further, as a device for crushing and separating waste tire chips into rubber chips and wires, as described in JP 2007-038056 A, a wire between rotating blades or between a rotating blade and a fixed blade, that is, between crushing blades, is used. A gap slightly larger than the diameter of the is formed.
The waste tire chip is bitten by the crushing blades, and the rubber and the wire are crushed and separated by shearing and crushing only the rubber without cutting the wire.
JP 2003-094385 A JP 2007-038056 A

  However, in the processing step of the waste rubber wheel as described above, when the waste rubber wheel in the pre-processing step is cut into a waste rubber wheel chip, the waste described in JP-A-2003-094385 configured as described above is used. In the tire cutting device, a mechanism is provided separately for the step of fixing the waste rubber wheel to the device and the step of cutting. Therefore, a lot of labor and cost are required to operate and maintain the apparatus, and a space for installation is required.

  In the crushing and separating apparatus described in Japanese Patent Application Laid-Open No. 2007-038056, a crushing target is a waste rubber ring chip obtained by cutting a whole waste rubber ring. The power of the rotary blade necessary for biting and sliding the waste rubber ring and crushing it requires a larger force than in the case of crushing the waste rubber ring chip. Further, the frictional force and frictional heat generated when the rotary blade bites and slides the waste rubber wheel in cooperation with other crushing blades and crushes are also large.

  The present invention provides a rotating blade structure that prevents the deterioration of the rotating blade and the fixed blade for the device that breaks the waste rubber ring in the pretreatment process. The power of the rotary blade necessary for sliding and breaking, the friction force generated at this time, and the temperature rise of the rotary blade and fixed blade due to frictional heat are reduced, and the mechanism of the breaking device is simplified. The purpose is to reduce the labor and cost for operating and maintaining the equipment, to reduce the space for installation, and to improve the efficiency of crushing and separating the waste rubber ring in the post-treatment process into rubber and wire.

  In order to solve the above-mentioned problem, the present invention comprises a large and small hook-shaped cutting blade piece on the outer periphery, a rotary blade provided with a recess having a shape along the inner side with respect to the rotation direction of the rotary blade, A fixed blade that forms a concave portion of the rotary blade, and a large and small hook-shaped cutting blade piece of the rotary blade passes through the concave portion of the fixed blade, so that the waste rubber ring is relatively opposite to the rotary blade and the fixed blade. Squeezed into a gap that can be inserted by moving in the direction and into which the linear or belt-shaped metal part of the waste rubber ring formed between the rotary blade and the recessed portion of the fixed blade can be inserted. It is broken by moving. In addition, by passing the recess of the rotary blade through the recess, a part of the waste rubber wheel that is slid and broken in the gap enters the recess passing through the recess, It swells in the direction of the opening of the dent and slides away from breaking. The fixed blade has a plurality of stages, and the waste rubber ring is broken a plurality of times by providing a plurality of stages at positions where the recesses of the rotary blade and the large and small hook-shaped cutting pieces pass at intervals. All or a part of the fixed blade can be replaced with another rotary blade. The above-mentioned waste rubber wheel is made by bending a rubber and includes a metal member. The waste rubber ring includes a whole and one cut into a size that can be processed by the breaking device of the present invention. Specific examples are waste tires, waste rubber crawlers, and waste conveyor belts. The rubber crawler is a crawler belt with a metal core and a steel cord wrapped in an endless rubber, and the conveyor belt is integrally formed with rubber using a steel cord as a core wire. It is a thing.

  According to the present invention, by providing a recess on the side surface of the rotary blade, a part of the waste rubber ring that is slid and broken by the movement of the rotary blade and the fixed blade in the opposite direction is rotated. By entering into the dent of the blade and escaping from sliding and breaking, the power of the rotary blade necessary for sliding and breaking, and the frictional force and frictional heat generated by sliding are reduced, Waste rubber is provided by preventing deterioration of the rotary blade and fixed blade, and by providing a plurality of stages of the fixed blade at positions where the recess of the rotary blade and the large and small hook-shaped cutting pieces pass, respectively. The ring can be broken several times to improve the breaking efficiency.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. Note that the embodiments described below do not limit the contents of the present invention described in the claims of utility model registration. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  1 and 2 are a sectional view and a perspective view showing Embodiment 1 of the present invention, and FIG. 3 is a perspective view of a rotary blade according to the present invention. In the figure, reference numeral 1 denotes a rectangular box-like casing, and an inlet 2 and an outlet 3 are formed at the upper end and the lower end of the casing 1, respectively. And the inner side fixed blade 4 and the bottom fixed blade 5 in which the some recessed part 4a was formed are installed in the inner surface part and bottom part of the casing 1. As shown in FIG. Note that the upper end portion of the fixed blade 5 is inclined so as to descend from the inner wall side of the casing 1 toward the other end side, and the degree of inclination of the inclination can be appropriately changed.

  The configuration of the rotary blade 6 will be described with reference to FIGS. On the outer periphery of the disk-shaped rotary blade 6 rotated by the rotary shaft 7, a large hook-shaped main cutting piece 8 is provided on the outer peripheral side so as to face the rotation direction at the time of fracture (the arrow direction in FIG. 1). Yes. The main cutting blade piece 8 has a protruding height to the outer peripheral side that decreases toward the rear side with respect to the rotational direction. A plurality of main cutting blade pieces 8 are annularly provided on the outer circumference of the rotary blade 6, and compared to the main cutting blade piece 8 on the rear side of the main cutting blade piece 8 on the rotational direction side. A small hook-shaped sub-cutting piece 9 is adjacent. Further, the sub-cutting blade piece 9 has a lower protrusion height toward the outer peripheral side in the rear side with respect to the rotational direction, like the main cutting edge 8. However, the ratio is smaller than that of the main cutting edge piece 8.

  In addition, dents 10 are respectively formed on both side surfaces (upper and lower surfaces in FIG. 3) between the main cutting blade piece 8 and the auxiliary cutting blade piece 9 on the rear side with respect to the rotation direction. The depression 10 is substantially U-shaped in a side view (when viewed from the top and bottom in FIG. 3), and has an opening 10a on the outer periphery of the rotary blade, and gradually along the rotation direction (arrow direction in FIG. 1). And is closed at the closing portion 10b so as to be inclined toward the inner peripheral side. The depth of the recess 10 is 14 to 16% with respect to the thickness of the rotary blade 6, and the width of the opening 10 a is 20 of the distance from the cutting edge 8 a of the main cutting edge piece 8 to the cutting edge 9 a of the auxiliary cutting edge piece 9. It is preferable that the width is gradually narrowed as it approaches the closing part 10b, and the closing part 10b is located in the vicinity of the extension line from the cutting edge 8a to the cutting edge 8b.

  The rotary blade 6 formed as described above is attached to the rotary shaft 7 with a phase shifted, and the rotary blade 6 attached on the rotary shaft 7 has a constant interval on the shaft. By attaching the disk 11 to the rotary shaft 7 between the rotary blades 6, each rotary blade 6 is formed so as to pass through the recessed portion 4 a of the inner fixed blade 4 and the bottom fixed blade 5. Further, a gap is formed between the recessed portion 4a of the fixed blades 4 and 5 and the rotary blade 6 so that a linear or belt-shaped metal part of the waste tire can enter. The rotating shaft 7 is provided so that it can be rotated reversely in the forward direction (in the direction of the arrow in FIG. 1) with the respective fixed blades 4 and 5 by the driving device.

  A scraper 12 is formed so as to be in sliding contact with the side surface of the rotary blade 6.

  In the waste rubber wheel breaking device having the above-described configuration, the waste tire supplied from the charging port 2 is transported along the forward rotation direction of the rotary blade 6, and the main cutting edge piece 8 or the auxiliary cutting edge piece 9 is fixed to the inner portion. By passing through the concave portion 4 a of the blade 4, the waste tire is engaged with the main cutting edge piece 8 or the auxiliary cutting edge piece 9 and the inner fixed blade 4, and the sliding between the rotary blade 6 and the inner fixed blade 4. It is broken into waste tire chips and wires with rubber by movement.

  At this time, the waste tire was compressed and deformed so as to enter the gap between the rotary blade 6 and the recessed portion 4a of the inner fixed blade 4 so that the linear or belt-like metal part of the waste tire could enter. In this state, the waste tire enters the gap and is slid and broken by the rotary blade 6 and the inner fixed blade 4. However, the waste tire expands in order to return to its original shape from the compressed and deformed state. The expansion force generated at this time acts as a pressing force on the rotary blade 6 and the inner fixed blade 4. This pressing force causes a frictional force that hinders sliding and an increase in frictional heat generated by sliding.

  Therefore, a part of the waste tire that is slid and broken while being compressed in the gap enters the recess 10 that passes through the recessed portion 4a of the inner fixed blade 4 as the rotary blade 6 rotates. A part of the waste tire that has entered the recess 10 expands into the opening 10a of the recess 10 to return to its original shape, hits the edge of the inner fixed blade 4, and the rotary blade 6 and the inner fixed blade 4 Is moved outward from the opening 10a on the outer periphery of the rotary blade 6 by the movement in the opposite direction. A part of the moved waste tire repeats the above process. Due to the cooperation of the rotary blade 6 and the inner fixed blade 4, the broken waste tire becomes a waste tire chip and a wire with rubber, and falls to the bottom fixed blade 5 in a disorderly manner.

  Since the waste tire chip and the rubber-equipped wire that have fallen in a disorderly manner move to the inside of the apparatus by an inclination formed so that the upper end portion of the bottom fixed blade 5 is lowered from the inner wall side of the casing 1 toward the other end side, Without collecting on the inner wall side, by the breakage in cooperation with the rotary blade 6 and the bottom fixed blade 5 in the same manner as described above, a waste tire chip that has become finer and a wire with rubber from which more adhered rubber has been omitted, It is carried out of the machine through the discharge port 3. During the breaking process, the adhering matter adhering to the rotary blade 6 is wiped off by the scraper 12 that is in sliding contact with both side surfaces of the rotary blade 6. Is moved to the inner surface side of the casing 1.

  FIG. 4 is a cross-sectional view showing a second embodiment of the present invention. 1-4, 6, 7, and 10 to 12 are the same as those in the first embodiment, and thus detailed description thereof is omitted. In the present embodiment, the fixed blade 5 of the first embodiment is replaced with an inner fixed blade 13 and a bottom fixed blade 14, and the upper ends of the fixed blades 13 and 14 are directed from the inner wall side of the casing 1 to the other end side. And has a plurality of concave portions 4a. Further, the inner fixed blades 4 and 13 and the bottom fixed blade 14 are arranged at intervals in the vertical direction at positions where the recess 10 of the rotary blade 6, the main cutting blade piece 8 and the sub cutting blade piece 9 pass.

  The present embodiment has the same waste tire breaking function as that of the first embodiment, and is provided with a plurality of fixed blades that form the rotary blade 6 and the plurality of recessed portions 4a at intervals in the vertical direction. The waste tire is broken a plurality of times by passing through the recessed portion 4a of the fixed blade provided with a plurality of stages of the rotary blades 6. In addition, the waste tire is broken at the upper end of the second and subsequent fixed blades (in FIG. 4, the inner fixed blade 13 and the bottom fixed blade 14) that are attached to the inner wall side and through which the rotary blade 6 passes. The waste tire tip and rubber wire that fall randomly on the part move to the inside of the device due to the inclination provided at the upper end, so it slides and breaks without collecting on the inner wall side and falls off randomly Go. About the inclination of the upper end part of the said fixed blades 13 and 14, the grade of inclination can be changed suitably.

  FIG. 5 is a cross-sectional view showing another embodiment of the present embodiment, and 1, 2, 4, 6, 7, 10 to 12 are the same as those of the present embodiment shown in FIG. Detailed explanation is omitted. The inner fixed blade 13 and the bottom fixed blade 14 that are attached to the inner wall side, are inclined so that the upper end portion is lowered from the inner wall side of the casing 1 toward the other end side, and are provided with a plurality of concave portions 4 a The fixed blade 15 is replaced with a bottom fixed blade 16 attached to the bottom. At the bottom of the casing 1, a discharge port 17 is provided between the open inner fixed blade 15 and the bottom fixed blade 16, and a discharge port 18 is provided on the other side. Is provided. The fixed blade 15 includes a plurality of concave portions 4a, and the upper end portion is inclined so as to descend from the inner wall side of the casing 1 toward the other end side, and the degree of the inclination can be changed as appropriate.

  Although illustration of this embodiment is omitted, all or a part of the fixed blade is replaced with another rotary blade. The rotary blade 6 and other rotary blades pass between adjacent rotary blades in both rotary blades while rotating in directions opposite to each other. The main cutting edge piece 8 and the auxiliary cutting edge piece 9 of the rotary blade 6 pass between the other rotary blades, and between the other rotary blades and the rotary blade 6 passing therethrough, a linear or belt-like shape of the waste tire. The gap is formed so that the metal parts can enter. The recess 10 of the rotary blade 6 moves in accordance with the rotation direction of the rotary blade 6, and the depth of the recess 10 is added to the gap at the portion where the recess 10 is located between the rotary blades through which the recess 10 passes. The width of becomes larger. Regarding the breakage of the waste tire, the explanation of the breakage of the waste tire of Example 1 is incorporated.

The present embodiment described above produces the following effects.
(1) By providing the depression 10 on the side surface of the rotary blade 6, the frictional force generated when the waste tire is slid by the rotary blade 6 and the fixed blade is reduced.
(2) By reducing the friction applied to the side surfaces of the rotary blade 6 and the fixed blade by the object to be broken, the frictional heat generated by the power and sliding of the rotary blade 6 necessary for sliding the object to be broken is reduced. In addition, since the plurality of fixed blades are provided at intervals, the object to be broken slides and breaks a plurality of times, so that it is possible to improve the breaking efficiency and prevent the rotary blade and the fixed blade from deteriorating.

  In addition, in the said Example, when implementing the aspect of this invention, it is a representative example of the technique employ | adopted by this inventor. These techniques are illustrative of preferred embodiments for practicing the present invention. In addition, in view of the disclosure of the present invention, those belonging to the present technical field can make many modifications and additions without departing from the spirit and intended gist of the present invention.

It is a partially expanded sectional view which shows Example 1 of the fracture | rupture apparatus which concerns on this invention. It is a partially expanded perspective view which shows Example 1 of the fracture | rupture apparatus based on this invention. It is a perspective view of a rotary blade. It is a partially expanded sectional view which shows Example 2 of the fracture | rupture apparatus based on this invention. 6 is a partially enlarged cross-sectional view of another example of the breaking device according to Embodiment 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Casing 2 ... Input port 3 ... Discharge port 4 ... Inner part fixed blade 4a ... Recessed part 5 ... Bottom fixed blade 6 ... Rotary blade 7 ... Rotary shaft DESCRIPTION OF SYMBOLS 8 ... Main cutting edge piece 8a ... Cutting edge 8b ... Cutting edge 9 ... Sub cutting edge piece 9a ... Cutting edge 10 ... Depression 10a ... Opening part 10b ... Closure part DESCRIPTION OF SYMBOLS 11 ... Disc 12 ... Scraper 13 ... Inside fixed blade 14 ... Bottom fixed blade 15 ... Inside fixed blade 16 ... Bottom fixed blade 17 ... Discharge port 18 ... Vent

Claims (2)

On the outer peripheral side of the rotary blade, large and small hook-shaped cutting blades projecting in the rotational direction are alternately provided in an annular shape in the circumferential direction, and the inner side gradually moves along the rotational direction of the rotary blade on the side surface. A rotary blade provided with a recess formed to tilt
A fixed blade that forms a plurality of concave portions, and
The fixed blade is provided in a plurality of stages, each at a position where the recess of the rotary blade and the large and small hook-shaped cutting blade pieces pass, with an interval in the vertical direction,
An apparatus for breaking a waste rubber ring, wherein the recess of the rotary blade and the large and small hook-shaped cutting blade pieces pass through the concave portion of the fixed blade. All or part of the fixed blade is replaced with another rotary blade,
2. The waste rubber ring breaking device according to claim 1, wherein the recess of the rotary blade and the large and small hook-shaped cutting blade pieces pass between the other rotary blades.

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