A production equipment and method for recycled rubber

Abstract

The present invention discloses a production device and method for recycled rubber, belonging to the technical field of recycled rubber production. A production device for recycled rubber includes a processing tank, and a feed inlet and a discharge outlet are respectively arranged at the upper and lower ends of the processing tank. The device further includes: two symmetrically arranged circular holes provided on the upper side wall of the processing tank, wherein a left roller shaft and a right roller shaft are respectively sleeved in the two circular holes, cutting teeth are fixedly arranged on the outer walls of the left roller shaft and the right roller shaft, and the two groups of cutting teeth are meshed with each other; a driving part arranged on the outer wall of the processing tank, wherein the driving part is used to drive the left roller shaft and the right roller shaft to rotate and drive the left roller shaft to reciprocate along its axis; The present invention significantly improves the efficiency and effect of the left roller shaft and the right roller shaft in crushing waste rubber, and indirectly improves the quality of recycled rubber.

Description

Technical Field

[0001] The present invention relates to the technical field of recycled rubber production, and particularly relates to a recycled rubber production device and method. Background Art

[0002] Rubber is ubiquitous in work and life. The rubber resources in our country are relatively scarce. Therefore, it is necessary to comprehensively utilize and produce recycled waste rubber and waste tires. In order to recycle waste rubber, generally, waste rubber crushing equipment is used to complete this task.

[0003] Currently, the commonly used rubber crusher is a roller-type rubber crusher, which has long strip-shaped grooves on its rollers. During the crushing process of rubber blocks, due to the certain elasticity and stretching characteristics of rubber itself, it will cause the rollers to be difficult to efficiently complete the crushing work of waste rubber, and even a large amount of incompletely crushed waste rubber will remain, which will affect the quality of recycled rubber powder. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is difficult to efficiently complete the crushing work of waste rubber, and to propose a recycled rubber production device and method.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A recycled rubber production device includes a processing box, and a feed inlet and a discharge outlet are respectively provided at the upper and lower ends of the processing box. The device further includes: two symmetrically arranged round holes provided on the upper side wall of the processing box. Among them, a left roller shaft and a right roller shaft are respectively sleeved in the two round holes. Cutting teeth are fixedly provided on the outer walls of the left roller shaft and the right roller shaft, and the two groups of cutting teeth are meshed with each other; a driving part is provided on the outer wall of the processing box. Among them, the driving part is used to drive the left roller shaft and the right roller shaft to rotate, and drive the left roller shaft to reciprocally slide along its axis.

[0007] In order to facilitate driving the left roller shaft and the right roller shaft to rotate, preferably, the driving part includes a motor fixedly installed on the outer wall of the processing box. The output shaft of the motor is fixedly installed with a first reciprocating lead screw, and the end of the first reciprocating lead screw is fixedly connected to the shaft end of the right roller shaft. Among them, first gears are fixedly installed at the shaft ends of the left roller shaft and the right roller shaft, and the two first gears are meshed with each other. A reciprocating push plate is threadedly connected to the outer wall of the first reciprocating lead screw, and the shaft end of the left roller shaft is rotatably connected to the reciprocating push plate.

[0008] For facilitating heat dissipation and flushing of the rotation of the left roller shaft and the right roller shaft, preferably, inner tubes are fixedly connected to the shaft ends of the left roller shaft and the right roller shaft. Liquid spraying holes extending to the outer walls of the left roller shaft and the right roller shaft are arranged on the outer walls of the inner tubes, and the liquid spraying holes are located in the tooth grooves of the cutting teeth. A water tank is fixedly installed on the outer wall of the processing box, and the input ends of the inner tubes extend into the water tank.

[0009] For facilitating pressurization of the water tank, preferably, a first telescopic airbag is installed between the reciprocating push plate and the outer wall of the processing box. A first air suction pipe and a first exhaust pipe are fixedly connected to the first telescopic airbag. One-way valves are fixedly installed in both the first air suction pipe and the first exhaust pipe, and the end of the first exhaust pipe extends into the water tank.

[0010] For facilitating stirring and cleaning of the rubber powder, preferably, a middle roller shaft is rotatably connected to the inner bottom of the processing box. The middle roller shaft is connected to the right roller shaft through a chain drive. A plurality of telescopic rods distributed circumferentially are slidably connected to the outer wall of the middle roller shaft. Water passing holes are arranged on the lower outer wall of the processing box, and a water collecting cover for blocking the water passing holes is fixedly connected to the lower outer wall of the processing box. Among them, the telescopic rods are perpendicular to the axis of the middle roller shaft, the ends of the telescopic rods are fixedly connected to inner arc-shaped plates, pressing blocks are fixedly connected to the inner walls of the inner arc-shaped plates, and an opening and closing part for driving the telescopic rods to reciprocate slidably is arranged in the middle roller shaft.

[0011] For improving the cleaning effect of the rubber powder, preferably, the opening and closing part includes a sliding groove arranged in the middle roller shaft. A second reciprocating lead screw is rotatably connected in the sliding groove. A sliding table is threadedly connected to the outer wall of the second reciprocating lead screw, and the telescopic rod is fixedly connected to the sliding table. Among them, a transverse shaft is rotatably connected to the shaft end of the middle roller shaft. The transverse shaft and the second reciprocating lead screw are connected through two meshing second gears. A third gear is fixedly connected to the other end of the transverse shaft, and an annular gear meshingly connected to the third gear is fixedly connected to the outer wall of the processing box.

[0012] For preventing the rubber powder from getting stuck on the inner wall of the inner arc-shaped plate, preferably, a plurality of air holes are evenly distributed on the inner wall of the inner arc-shaped plate, and an air supply part for blowing air into the air holes is arranged in the sliding groove.

[0013] For automatically supplying air to the air holes, preferably, the air supply part includes a second telescopic airbag installed between the sliding table and the inner wall of the sliding groove. A second air suction pipe and a second exhaust pipe are fixedly connected to the second telescopic airbag. Among them, one-way valves are fixedly installed in both the second air suction pipe and the second exhaust pipe. The air holes are communicated with the second exhaust pipe, a transverse hole is arranged at the shaft end of the middle roller shaft, and the input end of the second air suction pipe extends into the transverse hole.

[0014] In order to automatically dredge the water passing holes, further, a guide rod is fixedly connected to the inner wall of the water collecting cover, and an outer arc-shaped plate is slidably connected to the guide rod. Among them, a plug rod facing the water passing holes is fixedly connected to the inner wall of the outer arc-shaped plate, and the outer arc-shaped plate is elastically connected to the inner wall of the water collecting cover through an elastic rope. Magnets that attract each other are fixedly installed in both the inner arc-shaped plate and the outer arc-shaped plate.

[0015] A method for producing recycled rubber, the operation steps are as follows:

[0016] Step 1: Continuously convey waste rubber into the processing box;

[0017] Step 2: Continuously rotate the left roller shaft and the right roller shaft, and make the left roller shaft slide reciprocally along the axis;

[0018] Step 3: Rinse the tooth grooves of the left roller shaft and the right roller shaft with cleaning liquid;

[0019] Step 4: Stir the pulverized rubber powder and the cleaning liquid;

[0020] Step 5: Make the rubber powder be reciprocally extruded;

[0021] Step 6: Stop supplying the cleaning liquid and drain the rubber powder.

[0022] Compared with the prior art, the present invention provides a recycled rubber production device, which has the following beneficial effects:

[0023] 1. In this recycled rubber production device, the first reciprocating lead screw drives the reciprocating push plate to slide reciprocally, and the reciprocating push plate will drive the left roller shaft to slide reciprocally along the axis. The cutting teeth on the left roller shaft and the right roller shaft will perform a reciprocating cutting action on the waste rubber, significantly improving the efficiency and effect of the left roller shaft and the right roller shaft in pulverizing the waste rubber, and indirectly improving the quality of the recycled rubber.

[0024] 2. In this recycled rubber production device, the first exhaust pipe pressurizes the water tank, and the cleaning liquid in the water tank will enter the inner pipe and finally spray out from the liquid spraying holes. On the one hand, it can flush out the rubber powder in the tooth grooves of the cutting teeth to prevent being blocked by the rubber powder. On the other hand, it can cool the cutting teeth to ensure its cutting efficiency. On the third hand, it can lubricate the cutting teeth to reduce the wear on the cutting teeth. When the first telescopic airbag is stretched, it will inhale air through the first air suction pipe.

[0025] 3. In this recycled rubber production device, the middle roller shaft drives the third gear to roll along the teeth of the annular gear, and the sliding table will drive the inner arc-shaped plate to slide reciprocally through the telescopic rod. Therefore, the effect of the inner arc-shaped plate in stirring the rubber powder and the cleaning liquid can be significantly improved, and thus the cleaning effect of the rubber powder is improved.

[0026] 4. When the inner arc-shaped plate is attached to the outer wall of the middle roller shaft, the inner arc-shaped plate and the pressing block will squeeze some rubber powder, so that the impurities stuck in the cracks of the rubber powder can be discharged, which can further improve the cleaning effect of the rubber powder and significantly improve the quality of the recycled rubber.

[0027] 5. By blowing air through the air holes towards the outer wall direction of the inner middle roller shaft, on the one hand, it can better clean the rubber powder, and on the other hand, it can prevent the rubber powder from getting stuck on the inner wall of the inner arc-shaped plate.

[0028] 6. When the inner arc-shaped plate approaches the inner wall of the treatment tank, the outer arc-shaped plate will slide along the outer wall of the guide rod until the outer arc-shaped plate drives the insertion rod to insert into the water passing hole, and the insertion rod can dredge the water passing hole to prevent foreign objects from blocking the water passing hole and affecting the cleaning effect of the rubber powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an axonometric structure diagram of a recycled rubber production device proposed by the present invention;

[0030] Figure 2 It is a partial axonometric structure diagram of a recycled rubber production device proposed by the present invention;

[0031] Figure 3 It is an axonometric structure diagram of the treatment tank of a recycled rubber production device proposed by the present invention;

[0032] Figure 4 It is a partial axonometric sectional structure diagram of a recycled rubber production device proposed by the present invention;

[0033] Figure 5 It is an axonometric structure diagram of the left roller shaft and the right roller shaft of a recycled rubber production device proposed by the present invention;

[0034] Figure 6 It is an axonometric structure diagram of the middle roller shaft of a recycled rubber production device proposed by the present invention;

[0035] Figure 7 It is a sectional structure diagram of the middle roller shaft of a recycled rubber production device proposed by the present invention;

[0036] Figure 8 It is an axonometric structure diagram of the second reciprocating lead screw of a recycled rubber production device proposed by the present invention;

[0037] Figure 9 It is an axonometric structure diagram of the water collecting cover of a recycled rubber production device proposed by the present invention.

[0038] In the figure: 1, processing box; 2, round hole; 3, right roller shaft; 4, left roller shaft; 5, cutting teeth; 6, motor; 7, first gear; 8, first reciprocating lead screw; 9, reciprocating push plate; 10, water tank; 11, liquid spraying hole; 12, inner tube; 13, first telescopic airbag; 14, first air suction pipe; 15, first exhaust pipe; 16, middle roller shaft; 17, telescopic rod; 18, inner arc plate; 19, pressing block; 20, chain drive; 21, chute; 22, second reciprocating lead screw; 23, sliding table; 24, horizontal shaft; 25, second gear; 26, third gear; 27, annular gear; 28, air hole; 29, second telescopic airbag; 30, second exhaust pipe; 31, second air suction pipe; 32, horizontal hole; 33, water collecting cover; 34, guide rod; 35, outer arc plate; 36, inserting rod; 37, elastic cord; 38, water passing hole. Detailed implementation manner

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0041] Embodiment 1:

[0042] Referring to Figures 1-9 , a recycled rubber production device includes a processing box 1 for processing waste rubber. The upper and lower ends of the processing box 1 are respectively provided with a feed inlet and a discharge outlet. A gate plate that can be opened and closed is installed in the feed inlet. It further includes: two symmetrically arranged round holes 2 provided on the upper side wall of the processing box 1. Among them, a left roller shaft 4 and a right roller shaft 3 are respectively sleeved in the two round holes 2. Cutting teeth 5 are fixedly provided on the outer walls of the left roller shaft 4 and the right roller shaft 3. The cutting teeth 5 are used for crushing waste rubber, and the two groups of cutting teeth 5 mesh with each other; a driving part is provided on the outer wall of the processing box 1. Among them, the driving part is used to drive the left roller shaft 4 and the right roller shaft 3 to rotate and drive the left roller shaft 4 to reciprocate along its axis.

[0043] During use, continuously throw waste rubber into the inner top of the treatment box 1, and then drive the left roller shaft 4 and the right roller shaft 3 to rotate through the driving part. Then, the left roller shaft 4 and the right roller shaft 3 can complete the crushing work of waste rubber through the cutting teeth 5 on the outer wall. Moreover, the rotating left roller shaft 4 will also slide reciprocally along the axis. The cutting teeth 5 on the left roller shaft 4 and the right roller shaft 3 will perform a reciprocating cutting action on the waste rubber, significantly improving the efficiency and effect of the left roller shaft 4 and the right roller shaft 3 in crushing waste rubber, and indirectly improving the quality of recycled rubber.

[0044] Embodiment Two:

[0045] Refer to Figures 1-5 , which is basically the same as Embodiment One. Furthermore, the specific implementation scheme of the driving part is specifically disclosed.

[0046] The above-mentioned driving part includes a motor 6 fixedly installed on the outer wall of the treatment box 1. The output shaft of the motor 6 is fixedly installed with a first reciprocating lead screw 8. The end of the first reciprocating lead screw 8 is fixedly connected to the shaft end of the right roller shaft 3. Among them, first gears 7 are fixedly installed at the shaft ends of the left roller shaft 4 and the right roller shaft 3, and the two first gears 7 are meshed and connected. A reciprocating push plate 9 is threadedly connected to the outer wall of the first reciprocating lead screw 8, and the shaft end of the left roller shaft 4 is rotatably connected to the reciprocating push plate 9.

[0047] Specifically, during use, the motor 6 will drive the right roller shaft 3 to rotate through the first reciprocating lead screw 8. The right roller shaft 3 will drive the left roller shaft 4 to rotate through two meshing first gears 7. Then, the left roller shaft 4 and the right roller shaft 3 can complete the crushing work of waste rubber through the cutting teeth 5 on the outer wall. During the rotation of the first reciprocating lead screw 8, the first reciprocating lead screw 8 will drive the reciprocating push plate 9 to slide reciprocally, and the reciprocating push plate 9 will drive the left roller shaft 4 to slide reciprocally along the axis. The cutting teeth 5 on the left roller shaft 4 and the right roller shaft 3 will perform a reciprocating cutting action on the waste rubber, significantly improving the efficiency and effect of the left roller shaft 4 and the right roller shaft 3 in crushing waste rubber, and indirectly improving the quality of recycled rubber.

[0048] Embodiment Three:

[0049] Refer to Figures 1-5 , which is basically the same as Embodiment Two. Furthermore, the specific implementation scheme for cooling and flushing the left roller shaft 4 and the right roller shaft 3 is specifically added.

[0050] Both ends of the left roller shaft 4 and the right roller shaft 3 are fixedly connected with inner pipes 12. The outer wall of the inner pipe 12 is provided with liquid spraying holes 11 extending to the outer walls of the left roller shaft 4 and the right roller shaft 3, and the liquid spraying holes 11 are located in the tooth grooves of the cutting teeth 5. A water tank 10 for storing cleaning liquid is fixedly installed on the outer wall of the treatment tank 1, and the input end of the inner pipe 12 extends into the water tank 10; A first telescopic airbag 13 is installed between the reciprocating push plate 9 and the outer wall of the treatment tank 1. A first air suction pipe 14 and a first exhaust pipe 15 are fixedly connected to the first telescopic airbag 13. Check valves are fixedly installed in both the first air suction pipe 14 and the first exhaust pipe 15, and the end of the first exhaust pipe 15 extends into the water tank 10.

[0051] When the reciprocating push plate 9 reciprocates, the reciprocating push plate 9 will also indirectly stretch and compress the first telescopic airbag 13. When the first telescopic airbag 13 is compressed, it will pressurize the water tank 10 through the first exhaust pipe 15. The cleaning liquid in the water tank 10 will enter the inner pipe 12 and finally spray out from the liquid spraying holes 11. On the one hand, it can flush out the rubber powder in the tooth grooves of the cutting teeth 5 to prevent blockage by the rubber powder. On the other hand, it can cool the cutting teeth 5 to ensure their cutting efficiency. On the third hand, it can lubricate the cutting teeth 5 to reduce the wear on the cutting teeth 5. When the first telescopic airbag 13 is stretched, it will suck air through the first air suction pipe 14.

[0052] Embodiment 4:

[0053] Refer to Figures 1-9 , which is basically the same as Embodiment 3. Furthermore, a specific implementation scheme for stirring the rubber powder and the cleaning liquid is specifically added.

[0054] The inner bottom of the above-mentioned treatment tank 1 is rotatably connected with a middle roller shaft 16. The middle roller shaft 16 is connected to the right roller shaft 3 through a chain drive 20. A plurality of circumferentially distributed telescopic rods 17 are slidably connected to the outer wall of the middle roller shaft 16. The number of the telescopic rods 17 is 4 - 8, and the preferred number in this application is 6. A water passing hole 38 is provided on the lower outer wall of the treatment tank 1. A water collecting cover 33 for blocking the water passing hole 38 is fixedly connected to the lower outer wall of the treatment tank 1. Among them, the telescopic rod 17 is perpendicular to the axis of the middle roller shaft 16, and the end of the telescopic rod 17 is fixedly connected with an inner arc-shaped plate 18, and a pressing block 19 is fixedly connected to the inner wall of the inner arc-shaped plate 18.

[0055] Specifically, after the waste rubber is crushed, the rubber powder and the cleaning liquid will fall to the inner bottom of the treatment tank 1. At this time, the right roller shaft 3 will drive the middle roller shaft 16 to rotate through the chain drive 20, and the middle roller shaft 16 will drive the inner arc-shaped plate 18 to stir the rubber powder and the cleaning liquid in the treatment tank 1 through the telescopic rod 17, thereby completing the efficient cleaning work of the rubber powder. When the drain pipe on the water collecting cover 33 is opened, the sewage generated by the cleaning will enter the water collecting cover 33 through the water passing hole 38 and then be discharged from the drain pipe of the water collecting cover 33.

[0056] A clamping and opening part for driving the telescopic rod 17 to reciprocate and slide is arranged in the middle roller shaft 16. The clamping and opening part includes a chute 21 arranged in the middle roller shaft 16. A second reciprocating lead screw 22 is rotatably connected in the chute 21. A slide table 23 is threadedly connected to the outer wall of the second reciprocating lead screw 22. The telescopic rod 17 is fixedly connected to the slide table 23. Among them, a cross shaft 24 is rotatably connected to the shaft end of the middle roller shaft 16. The cross shaft 24 and the second reciprocating lead screw 22 are connected by two meshing second gears 25. A third gear 26 is fixedly connected to the other end of the cross shaft 24. An annular gear 27 meshing with the third gear 26 is fixedly connected to the outer wall of the processing box 1.

[0057] During the rotation of the middle roller shaft 16, the middle roller shaft 16 will drive the third gear 26 to roll along the teeth of the annular gear 27. The third gear 26 will drive the cross shaft 24 to rotate. The cross shaft 24 will drive the second reciprocating lead screw 22 to rotate through two meshing second gears 25. The second reciprocating lead screw 22 will drive the slide table 23 to reciprocate and slide in the chute 21. The slide table 23 will drive the inner arc-shaped plate 18 to reciprocate and slide through the telescopic rod 17. Therefore, the effect of the inner arc-shaped plate 18 stirring the rubber powder and the cleaning liquid can be significantly improved, and then the cleaning effect of the rubber powder is improved. When the inner arc-shaped plate 18 fits against the outer wall of the middle roller shaft 16, the inner arc-shaped plate 18 and the pressing block 19 will squeeze part of the rubber powder, so that the impurities stuck in the cracks of the rubber powder can be discharged, and the cleaning effect of the rubber powder can be further improved, and the quality of the recycled rubber is significantly improved.

[0058] A plurality of air holes 28 are evenly distributed on the inner wall of the inner arc-shaped plate 18. The number of the air holes 28 is 20 - 50. The preferred number in this application is 36. An air supply part for blowing air into the air holes 28 is arranged in the chute 21. The air supply part includes a second telescopic airbag 29 installed between the slide table 23 and the inner wall of the chute 21. A second air suction pipe 31 and a second air discharge pipe 30 are fixedly connected to the second telescopic airbag 29. Among them, one-way valves are fixedly installed in both the second air suction pipe 31 and the second air discharge pipe 30. The air holes 28 are communicated with the second air discharge pipe 30. A transverse hole 32 is arranged at the shaft end of the middle roller shaft 16. The input end of the second air suction pipe 31 extends into the transverse hole 32.

[0059] Specifically, during the reciprocating sliding of the slide table 23, the slide table 23 will indirectly stretch and compress the second telescopic airbag 29. When the second telescopic airbag 29 is compressed, it will blow air into the air holes 28 through the second air discharge pipe 30, and the air holes 28 will blow air towards the outer wall direction of the middle roller shaft 16. On the one hand, it can better clean the rubber powder, and on the other hand, it can prevent the rubber powder from getting stuck on the inner wall of the inner arc-shaped plate 18. When the second telescopic airbag 29 is stretched, it will suck air from the transverse hole 32 through the second air suction pipe 31, and the transverse hole 32 will suck in external air.

[0060] Example 5:

[0061] Refer to Figure 9 , which is basically the same as Example 4. Furthermore, a specific implementation plan for dredging the water passing hole 38 is specifically added.

[0062] A guide rod 34 is fixedly connected to the inner wall of the water collecting cover 33. An outer arc-shaped plate 35 is slidably connected to the guide rod 34. Among them, a plug rod 36 facing the water passing hole 38 is fixedly connected to the inner wall of the outer arc-shaped plate 35. The outer arc-shaped plate 35 is elastically connected to the inner wall of the water collecting cover 33 through an elastic cord 37. Magnets that attract each other are fixedly installed in both the inner arc-shaped plate 18 and the outer arc-shaped plate 35.

[0063] When the inner arc-shaped plate 18 approaches the inner wall of the processing box 1, the magnets on the inner arc-shaped plate 18 and the outer arc-shaped plate 35 will attract each other, and the outer arc-shaped plate 35 will slide along the outer wall of the guide rod 34 until the outer arc-shaped plate 35 drives the plug rod 36 to insert into the water passing hole 38. The plug rod 36 can then dredge the water passing hole 38 to prevent foreign objects from blocking the water passing hole 38 and affecting the cleaning effect of the rubber powder. When the inner arc-shaped plate 18 moves away from the inner wall of the processing box 1, the elastic cord 37 will pull the outer arc-shaped plate 35 to slide back towards the inner wall of the water collecting cover 33.

[0064] A method for producing recycled rubber has the following operating steps:

[0065] Step 1: Continuously convey waste rubber into the processing box 1;

[0066] Step 2: Continuously rotate the left roller shaft 4 and the right roller shaft 3, and make the left roller shaft 4 slide reciprocally along its axis;

[0067] Step 3: Flush the tooth grooves of the left roller shaft 4 and the right roller shaft 3 with cleaning liquid;

[0068] Step 4: Stir the rubber powder after crushing and the cleaning liquid;

[0069] Step 5: Make the rubber powder be subjected to reciprocating extrusion;

[0070] Step 6: Stop supplying the cleaning liquid and drain the rubber powder.

[0071] When this recycled rubber production equipment is in use, waste rubber is continuously thrown into the inner top of the processing box 1, and the motor 6 is started. The motor 6 will drive the right roller shaft 3 to rotate through the first reciprocating lead screw 8. The right roller shaft 3 will drive the left roller shaft 4 to rotate through two meshing first gears 7. Thus, the left roller shaft 4 and the right roller shaft 3 can complete the crushing work of waste rubber through the cutting teeth 5 on the outer wall. During the rotation of the first reciprocating lead screw 8, the first reciprocating lead screw 8 will drive the reciprocating push plate 9 to slide reciprocally. The reciprocating push plate 9 will drive the left roller shaft 4 to slide reciprocally along the axis. The cutting teeth 5 on the left roller shaft 4 and the right roller shaft 3 will perform a reciprocating cutting action on the waste rubber, significantly improving the efficiency and effect of the left roller shaft 4 and the right roller shaft 3 in crushing waste rubber, and indirectly improving the quality of recycled rubber.

[0072] When the reciprocating push plate 9 slides reciprocally, the reciprocating push plate 9 will also indirectly stretch and compress the first telescopic airbag 13. When the first telescopic airbag 13 is compressed, it will pressurize the water tank 10 through the first exhaust pipe 15. The cleaning liquid in the water tank 10 will enter the inner pipe 12 and finally spray out from the liquid spraying holes 11. On the one hand, it can flush out the rubber powder in the tooth grooves of the cutting teeth 5 to prevent blockage by rubber powder. On the other hand, it can cool the cutting teeth 5 to ensure their cutting efficiency. On the third hand, it can lubricate the cutting teeth 5 to reduce the wear on the cutting teeth 5. When the first telescopic airbag 13 is stretched, it will inhale air through the first suction pipe 14.

[0073] After the waste rubber is crushed, the rubber powder and the cleaning liquid will fall to the inner bottom of the processing box 1. At this time, the right roller shaft 3 will drive the middle roller shaft 16 to rotate through the chain drive 20. The middle roller shaft 16 will drive the inner arc plate 18 to stir the rubber powder and the cleaning liquid in the processing box 1 through the telescopic rod 17, thus completing the efficient cleaning work of the rubber powder. When the drain pipe on the water collecting cover 33 is opened, the sewage generated by cleaning will enter the water collecting cover 33 through the water passing holes 38 and then be discharged from the drain pipe of the water collecting cover 33.

[0074] During the rotation of the middle roller shaft 16, the middle roller shaft 16 will drive the third gear 26 to roll along the teeth of the annular gear 27. The third gear 26 will drive the cross shaft 24 to rotate. The cross shaft 24 will drive the second reciprocating lead screw 22 to rotate through two meshing second gears 25. The second reciprocating lead screw 22 will drive the sliding table 23 to slide reciprocally in the sliding groove 21. The sliding table 23 will drive the inner arc plate 18 to slide reciprocally through the telescopic rod 17. Thus, the effect of the inner arc plate 18 in stirring the rubber powder and the cleaning liquid can be significantly improved, and further the cleaning effect of the rubber powder is improved. When the inner arc plate 18 fits onto the outer wall of the middle roller shaft 16, the inner arc plate 18 and the pressing block 19 will squeeze part of the rubber powder, so that the impurities stuck in the cracks of the rubber powder can be discharged, further improving the cleaning effect of the rubber powder and significantly improving the quality of recycled rubber.

[0075] As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A production device for recycled rubber, comprising a processing tank (1), wherein a feed inlet and a discharge outlet are respectively arranged at the upper and lower ends of the processing tank (1), and it is characterized in that, Further comprising: Two symmetrically arranged circular holes (2), provided on the upper side wall of the processing box (1), wherein, left and right roller shafts (4) and (3) are respectively sleeved in the two circular holes (2), cutting teeth (5) are fixedly provided on the outer walls of the left and right roller shafts (4) and (3), and the two groups of cutting teeth (5) mesh with each other; A driving part, provided on the outer wall of the processing box (1), wherein, the driving part is used to drive the left and right roller shafts (4) and (3) to rotate, and drive the left roller shaft (4) to reciprocate along its axis; The driving part includes a motor (6) fixedly installed on the outer wall of the processing box (1), a first reciprocating lead screw (8) is fixedly installed on the output shaft of the motor (6), and the end of the first reciprocating lead screw (8) is fixedly connected to the shaft end of the right roller shaft (3), wherein, first gears (7) are fixedly installed at the shaft ends of the left and right roller shafts (4) and (3), the two first gears (7) are meshed and connected, a reciprocating push plate (9) is threadedly connected to the outer wall of the first reciprocating lead screw (8), and the shaft end of the left roller shaft (4) is rotatably connected to the reciprocating push plate (9); A middle roller shaft (16) is rotatably connected to the inner bottom of the processing box (1), the middle roller shaft (16) is connected to the right roller shaft (3) through a chain drive (20), a plurality of circumferentially distributed telescopic rods (17) are slidably connected to the outer wall of the middle roller shaft (16), a water passing hole (38) is provided on the lower outer wall of the processing box (1), and a water collecting cover (33) for blocking the water passing hole (38) is fixedly connected to the lower outer wall of the processing box (1), wherein, the telescopic rod (17) is perpendicular to the axis of the middle roller shaft (16), an inner arc-shaped plate (18) is fixedly connected to the end of the telescopic rod (17), a pressing block (19) is fixedly connected to the inner wall of the inner arc-shaped plate (18), and an opening and closing part for driving the telescopic rod (17) to reciprocate is provided in the middle roller shaft (16).

2. The production equipment for recycled rubber according to claim 1, characterized in that, Inner tubes (12) are fixedly connected to the shaft ends of the left and right roller shafts (4) and (3), liquid spraying holes (11) extending to the outer walls of the left and right roller shafts (4) and (3) are provided on the outer walls of the inner tubes (12), and the liquid spraying holes (11) are located in the tooth grooves of the cutting teeth (5), a water tank (10) is fixedly installed on the outer wall of the processing box (1), and the input ends of the inner tubes (12) extend into the water tank (10).

3. The production equipment for recycled rubber according to claim 2, wherein A first telescopic air bag (13) is installed between the reciprocating push plate (9) and the outer wall of the processing box (1), a first air suction pipe (14) and a first exhaust pipe (15) are fixedly connected to the first telescopic air bag (13), one-way valves are fixedly installed in the first air suction pipe (14) and the first exhaust pipe (15), and the end of the first exhaust pipe (15) extends into the water tank (10).

4. A production device for recycled rubber according to claim 1, characterized in that, The opening and closing part includes a chute (21) provided in the middle roller shaft (16), a second reciprocating lead screw (22) is rotatably connected in the chute (21), a sliding table (23) is threadedly connected to the outer wall of the second reciprocating lead screw (22), and the telescopic rod (17) is fixedly connected to the sliding table (23). Among them, a horizontal shaft (24) is rotatably connected to the shaft end of the middle roller shaft (16). The horizontal shaft (24) is connected to the second reciprocating lead screw (22) through two meshing second gears (25). A third gear (26) is fixedly connected to the other end of the horizontal shaft (24). An annular gear (27) meshing with the third gear (26) is fixedly connected to the outer wall of the processing box (1).

5. A production device for recycled rubber according to claim 4, characterized in that, A plurality of air holes (28) evenly distributed are provided on the inner wall of the inner arc-shaped plate (18). An air supply part for blowing air into the air holes (28) is provided in the sliding groove (21).

6. The production equipment for recycled rubber according to claim 5, characterized in that, The air supply part includes a second expansion airbag (29) installed between the sliding table (23) and the inner wall of the sliding groove (21). A second suction pipe (31) and a second exhaust pipe (30) are fixedly connected to the second expansion airbag (29). Among them, one-way valves are fixedly installed in both the second suction pipe (31) and the second exhaust pipe (30). The air holes (28) are communicated with the second exhaust pipe (30). A transverse hole (32) is provided at the shaft end of the middle roller shaft (16). The input end of the second suction pipe (31) extends into the transverse hole (32).

7. A production device for recycled rubber according to claim 4, characterized in that, Guide rods (34) are fixedly connected to the inner wall of the water collecting cover (33). An outer arc-shaped plate (35) is slidably connected to the guide rods (34). Among them, a plug rod (36) facing the water passing hole (38) is fixedly connected to the inner wall of the outer arc-shaped plate (35). The outer arc-shaped plate (35) is elastically connected to the inner wall of the water collecting cover (33) through an elastic rope (37). Magnets that attract each other are fixedly installed in both the inner arc-shaped plate (18) and the outer arc-shaped plate (35).

8. A method for producing recycled rubber, comprising a recycled rubber production device according to any one of claims 1-7, characterized in that, The operation steps are as follows: Step 1: Continuously convey waste rubber into the processing box (1). Step 2: Continuously rotate the left roller shaft (4) and the right roller shaft (3), and make the left roller shaft (4) reciprocate along the axis. Step 3: Flush the tooth grooves of the left roller shaft (4) and the right roller shaft (3) with cleaning liquid. Step 4: Stir the pulverized rubber powder and the cleaning liquid. Step 5: Make the rubber powder be subjected to reciprocating extrusion. Step 6: Stop supplying the cleaning liquid and drain the rubber powder.

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