A rubber crushing device for rubber production

Abstract

The present invention provides a rubber crushing device for rubber production, which relates to the technical field of rubber crushing devices and comprises a crusher, wherein a feed trough is arranged above the crusher, a motor and an outer ring frame are arranged on the side wall of the feed trough, teeth are arranged inside the outer ring frame, the outer ring frame is fixed in the inner wall of the feed trough, the motor is fixed outside the side wall of the crusher, a transmission rod is fixedly installed on the end of the motor output shaft, the third gear rotates to drive the screw rod to rotate, the screw rod drives the sliding frame as a whole to move horizontally back and forth on the rotating guide rod, the movement of the sliding frame drives the upper and lower cutting knives to move, the two cutting knives move to cut the rubber strips wrapped around the surface, and the rubber strips entering the crusher at this time are more easily crushed by the crushing tool, and the phenomenon that the rubber strips are stuck in the crushing tool is effectively reduced, thereby greatly improving the crushing capacity of the device, and the crushed rubber particles will fall into the receiving box.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber crushing devices, and more specifically, particularly relates to a rubber crushing device used in rubber production. Background Art

[0002] During rubber production, the rubber will go through the process of crushing. At this time, a rubber crusher is needed. The rubber crusher is a common rubber processing equipment, which is mainly used to crush various waste rubber products (such as tires, rubber sheets, rubber tubes, etc.). The existing rubber crusher has the following disadvantages:

[0003] 1. When the existing rubber crushing equipment crushes the rubber strips, due to the small size of the rubber strips, they will be intertwined when entering the crusher. When the intertwined rubber strips touch the cutter, the cutter will be stuck. The cutter needs to be turned over and crushed again, resulting in reduced crushing efficiency and accelerated damage to the cutter.

[0004] 2. When the existing rubber crushing equipment crushes the rubber strips, since the existing rubber crushing equipment does not have a rubber pulling mechanism, when workers place a large number of rubber strips, they need to manually shake the rubber strips so that the rubber strips are as scattered as possible when they come into contact with the cutter. This operation is not only time-consuming and labor-intensive, but also cannot ensure that the rubber strips can be broken up.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a rubber crushing device for rubber production is provided, in order to achieve a more practical purpose. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a rubber crushing device for rubber production to solve the above problems.

[0007] A rubber crushing device for rubber production comprises a crusher, wherein a feed trough is arranged above the crusher, a motor and an outer ring frame are arranged on the side wall of the feed trough, a transmission rod is fixedly installed on the end of the motor output shaft, a transmission plate is fixedly installed on the outside of the transmission rod, two rotating rods are penetrated and installed in the transmission plate, a rotating guide rod is fixedly installed on the front ends of the two rotating rods, a second gear is fixedly installed on the rear ends of the two rotating rods, a screw rod is rotatably installed inside the two rotating rods, a threaded slide rail is provided on the surface of each screw rod, a third gear is fixedly installed on the outer ring of each screw rod near the end on the side of the second gear, a sliding frame is installed on the surface of each screw rod, a guide plate is rotatably installed under each sliding frame, and each guide plate cooperates with the threaded slide rail provided on the surface of the screw rod.

[0008] Preferably, teeth are provided inside the outer ring frame, each of the second gears is meshed with the teeth inside the outer ring frame, inner walls on the left and right sides of each rotating guide rod are provided with inner slide rails, inner walls on the left and right sides of each rotating guide rod located below the inner slide rails are provided with rotating grooves, inner walls on the left and right sides of each rotating guide rod located behind the rotating grooves are provided with gear bins, sealing strips are fixedly installed on the side walls of each rotating guide rod, each of the lead screws is installed in the rotating groove opened in the rotating guide rod, each of the third gears is installed in the gear bin opened in the rotating guide rod, and both ends of each of the lead screws are rotatably connected to the inner wall of the rotating guide rod.

[0009] Preferably, a fixing frame is fixedly installed on the side wall of the outer ring frame, an annular groove is opened inside the fixing frame, a turntable is rotatably installed inside the annular groove, the turntable is installed outside two rotating guide rods, and the two rotating guide rods are rotatably installed inside the turntable, each of the sliding frames is fixedly installed with side sliders on the left and right sides, each of the side sliders is located in the inner slide rail opened by the rotating guide rod, and two connecting frames are fixedly installed on the lower end of each of the sliding frames, the two connecting frames are located on both sides of the guide plate, and a table is fixedly installed on the lower ends of the two connecting frames.

[0010] Preferably, a cutting knife is fixedly mounted on the surface of each of the sliding frames and the table plate, two trapezoidal plates are fixedly mounted on the surface of each of the sliding frames and the table plate located on both sides of the cutting knife, the two trapezoidal plates on the same side face oppositely, and the outer walls of the two trapezoidal plates are in contact with the sealing strip, two first gears are fixedly mounted on the surface of the transmission plate, both of the two first gears cooperate with the third gear, and the two first gears are located on both sides of the transmission rod, the outer ring frame is fixed in the inner wall of the feed trough, the motor is fixed outside the side wall of the crusher, the fixed frame protrudes from the inner wall of the feed trough, the inner wall of the feed trough is fixedly mounted with a side baffle, and the side baffle is located on the front side of the fixed frame.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, the rotation of the two rotating guide rods will drive the third gear and the first gear. Since the rotation speed of the rotating guide rod is greater than the rotation speed of the transmission plate, the third gear and the first gear will keep in contact. The rotation of the third gear drives the screw rod to rotate, and the screw rod drives the sliding frame to move horizontally back and forth on the rotating guide rod as a whole. The movement of the sliding frame drives the upper and lower cutting knives to move. The movement of the two cutting knives cuts the rubber strips wrapped around the surface. At this time, the rubber strips entering the crusher are more easily crushed by the crushing tool, and the phenomenon of the rubber strips getting stuck in the crushing tool is effectively reduced, which greatly improves the crushing capacity of the device. The crushed rubber particles will fall into the receiving box.

[0013] In the present invention, the rotation of the second gear will drive the rotating guide rod to rotate through the rotating rod, and the two rotating guide rods drive the rubber strip to rotate in the air. Since the motor and the rotating guide rod are arranged obliquely in the feed trough as a whole, the rubber strip will keep falling outside the two rotating guide rods. By adopting two rotating guide rods to drive the rubber strip to fall in sections, a large number of rubber strips can be effectively avoided from falling at the same time, which greatly reduces the phenomenon of the crushing tool being stuck during crushing. At the same time, when placing the rubber strip, the worker needs to manually shake the rubber strip, which reduces the difficulty of operation for the worker.

[0014] In the present invention, when the rubber strips enter the feed chute, a large number of rubber strips will be intertwined with each other. The intertwined rubber strips first contact the two rotating guide rods. The two rotating guide rods rotate continuously to entangle the rubber strips, and the rubber strips will be deformed by force. A part of the rubber strips will be torn off by the rotation of the two rotating guide rods, and the broken rubber strips fall into the crusher and are crushed by the crushing cutter. The broken rubber strips are more easily crushed by the crushing cutter, thereby improving the crushing efficiency.

[0015] In the present invention, the rotation of the third gear will drive the screw rod to rotate. Since a guide plate is provided under the sliding frame and the guide plate is engaged with a threaded slide rail on the surface of the screw rod, the rotation of the screw rod will drive the sliding frame to move. When the sliding frame moves, the side sliding blocks on both sides will move inside the inner slide rail opened by the rotating guide rod. By utilizing the cooperation of the outer ring frame and the second gear, a speed difference occurs when the rotating guide rod and the transmission plate rotate, thereby driving the sliding frame to move without the need for an additional power source, thereby effectively improving the coordination between the devices.

[0016] In the present invention, the guide plate can realize reciprocating movement outside the screw rod, and the sliding frame will automatically move in the opposite direction when it moves to the two ends of the screw rod. The sliding frame reciprocates outside the rotating guide rod, which will drive the cutting knives at the upper and lower ends to move reciprocally, and at the same time drive the trapezoidal plates on the front and rear sides of the cutting knife to move. The movement of the trapezoidal plates can enable the cutting knife to push away the sealing strip in advance, and the sealing strip can prevent the rubber strip from entering the rotating guide rod. The trapezoidal plates can ensure that the cutting knife will not cut the sealing strip. The reciprocating movement of the cutting knife can cut the rubber strip on the surface of the rotating guide rod, thereby further improving the ability of the rubber strip to be crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the pulverizer of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the fixing frame of the present invention;

[0019] Figure 3 It is a schematic diagram of the outer ring frame structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the rotating guide rod of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the transmission plate of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the rotating rod of the present invention;

[0023] Figure 7 is a schematic diagram of the second gear structure of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the sliding frame of the present invention;

[0025] Fig. 9 It is a schematic diagram of the screw rod structure of the present invention.

[0026] In the figure, the corresponding relationship between the component names and the figure numbers is: 1. Crusher; 11. Feed chute; 12. Side baffle; 13. Crushing tool; 14. Material collection box; 15. Protection box; 2. Motor; 21. Outer ring frame; 22. Transmission rod; 23. Transmission plate; 24. First gear; 25. Teeth; 26. Fixed rod; 27. Fixed frame; 28. Turntable; 29. ​​Annular groove; 3. Rotating rod; 31. Second gear; 32. Sealing strip; 33. Rotating guide rod; 34. Inner slide rail; 35. Rotating groove; 36. Gear bin; 37. Screw; 38. Third gear; 39. Threaded slide rail; 4. Sliding frame; 41. Connecting frame; 42. Table; 43. Side slide block; 44. Guide plate; 45. Trapezoidal plate; 46. Cutting knife. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] See also Figure 1-Figure 9The present invention provides a rubber crushing device for rubber production, comprising a crusher 1, a feed trough 11 is arranged above the crusher 1, a crushing cutter 13 is arranged inside the crusher 1, a material receiving box 14 is arranged below the crusher 1, a motor 2 and an outer ring frame 21 are arranged on the side wall of the feed trough 11, teeth 25 are arranged inside the outer ring frame 21, the outer ring frame 21 is fixed in the inner wall of the feed trough 11, the motor 2 is fixed outside the side wall of the crusher 1, a transmission rod 22 is fixedly installed at the end of the output shaft of the motor 2, a transmission plate 23 is fixedly installed outside the transmission rod 22, two rotating rods 3 are installed through the transmission plate 23, the front ends of the two rotating rods 3 are fixedly installed with a rotating guide rod 33, the rear ends of the two rotating rods 3 are fixedly installed with a second gear 31, each second gear 31 is meshed with the teeth 25 inside the outer ring frame 21, the insides of the two rotating rods 3 are rotatably installed with a screw rod 37, the surface of each screw rod 37 is provided with a threaded slide rail 39, The third gear 38 is fixedly installed on the outer ring near the end of each screw rod 37 near the second gear 31, and a sliding frame 4 is installed on the surface of each screw rod 37. A guide plate 44 is rotatably installed under each sliding frame 4. The rotation of the two rotating guide rods 33 will drive the third gear 38 to contact the first gear 24. Since the rotation speed of the rotating guide rod 33 is greater than the rotation speed of the transmission plate 23, the third gear 38 and the first gear 24 will keep in contact. The rotation of the third gear 38 drives the screw rod 37 to rotate, and the screw rod 37 drives the sliding frame 4 to move horizontally back and forth on the rotating guide rod 33 as a whole. The movement of the sliding frame 4 drives the upper and lower cutting knives 46 to move. The two cutting knives 46 move to cut the rubber strip wrapped around the surface. At this time, the rubber strip entering the crusher 1, each guide plate 44 cooperates with the threaded slide rail 39 opened on the surface of the screw rod 37, and two first gears 24 are fixedly installed on the surface of the transmission plate 23, and the two first gears 24 cooperate with the third gear 38.

[0029] The two first gears 24 are located on both sides of the transmission rod 22. The inner walls on the left and right sides of each rotating guide rod 33 are provided with inner slide rails 34. The inner walls on the left and right sides of each rotating guide rod 33 located below the inner slide rails 34 are provided with rotating grooves 35. The inner walls on the left and right sides of each rotating guide rod 33 located behind the rotating grooves 35 are provided with gear compartments 36. The side walls of each rotating guide rod 33 are fixedly installed with sealing strips 32. The rotation of the second gear 31 will drive the rotating guide rod 33 to rotate through the rotating rod 3. The two rotating guide rods 33 are connected to the transmission rod 22. The moving guide rod 33 drives the rubber strip to rotate in the air. Since the motor 2 and the rotating guide rod 33 are arranged as a whole at an angle in the feed trough 11, the rubber strip will keep falling outside the two rotating guide rods 33. The two rotating guide rods 33 are used to drive the rubber strip to fall in sections. Each screw rod 37 is installed in the rotating groove 35 opened by the rotating guide rod 33, and each third gear 38 is installed in the gear compartment 36 opened by the rotating guide rod 33, and both ends of each screw rod 37 are rotatably connected to the inner wall of the rotating guide rod 33.

[0030] A fixing frame 27 is fixedly installed on the side wall of the outer ring frame 21, and an annular groove 29 is opened inside the fixing frame 27. When the two rotating guide rods 33 rotate, the turntable 28 will be driven to rotate. The turntable 28 can prevent the rubber strip from entering the outer ring frame 21. The inner part of the annular groove 29 is rotatably installed with a turntable 28. The turntable 28 is installed outside the two rotating guide rods 33, and the two rotating guide rods 33 are rotatably installed inside the turntable 28. The rotation of the third gear 38 will drive the screw rod 37 to rotate. Since a guide plate 44 is provided under the sliding frame 4, and the guide plate 44 meshes with the threaded guide rail 39 on the surface of the screw rod 37, The screw rod 37 is combined, so the rotation of the screw rod 37 will drive the sliding frame 4 to move. When the sliding frame 4 moves, the side sliders 43 on both sides will move inside the inner slide rail 34 opened by the rotating guide rod 33. By utilizing the cooperation between the outer ring frame 21 and the second gear 31, the left and right sides of each sliding frame 4 are fixedly installed with side sliders 43, and each side slider 43 is located in the inner slide rail 34 opened by the rotating guide rod 33. Two connecting frames 41 are fixedly installed at the lower end of each sliding frame 4. The two connecting frames 41 are located on both sides of the guide plate 44, and the lower ends of the two connecting frames 41 are fixedly installed with a table plate 42.

[0031] A cutting knife 46 is fixedly installed on the surface of each sliding frame 4 and table plate 42, and two trapezoidal plates 45 are fixedly installed on the surface of each sliding frame 4 and table plate 42 on both sides of the cutting knife 46. The two trapezoidal plates 45 on the same side face oppositely. The sliding frame 4 reciprocates outside the rotating guide rod 33, which will drive the cutting knives 46 at the upper and lower ends to move reciprocally, and at the same time drive the trapezoidal plates 45 on the front and rear sides of the cutting knife 46 to move. The movement of the trapezoidal plates 45 can allow the cutting knife 46 to push away the sealing strip 32 in advance, and the sealing strip 32 can prevent the rubber strip from entering the rotating guide rod 33. The trapezoidal plates 45 can ensure that the cutting knife 46 will not cut the sealing strip 32, and the outer walls of the two trapezoidal plates 45 are in contact with the sealing strip 32. The fixed frame 27 protrudes from the inner wall of the feed trough 11, and the inner wall of the feed trough 11 is fixedly installed with a side baffle 12. The side baffle 12 can assist the rubber strip to enter the surface of the rotating guide rod 33, and the side baffle 12 is located on the front side of the fixed frame 27.

[0032] Working principle:

[0033] In the first step, when the user is crushing the rubber, the user puts the rubber strip into the feed trough 11, and the rubber strip first contacts the two rotating guide rods 33, and the motor 2 operates to drive the transmission plate 23 to rotate through the transmission rod 22, and the rotation of the transmission plate 23 drives the two rotating guide rods 33 to rotate in a circle. Since the second gears 31 at the ends of the two rotating guide rods 33 are meshed with the teeth 25 inside the outer ring frame 21, when the two rotating guide rods 33 rotate in a circle, the two second gears 31 will drive the rotating guide rods 33 to rotate themselves, and the rotation of the two rotating guide rods 33 will drive the rubber strip to be pulled in the air of the feed trough 11, and the rotation of the two rotating guide rods 33 will drive the third gear 38 and the first gear 25 to rotate in a circle. The third gear 38 contacts the first gear 24. Since the rotation speed of the rotating guide rod 33 is greater than the rotation speed of the transmission plate 23, the third gear 38 will keep in contact with the first gear 24. The rotation of the third gear 38 drives the screw rod 37 to rotate. The screw rod 37 drives the sliding frame 4 to move back and forth horizontally on the rotating guide rod 33. The movement of the sliding frame 4 drives the upper and lower cutting knives 46 to move. The movement of the two cutting knives 46 cuts the rubber strips wrapped around the surface. At this time, the rubber strips entering the pulverizer 1 are more easily crushed by the crushing tool 13, and the phenomenon of the rubber strips getting stuck in the crushing tool 13 is effectively reduced, which greatly improves the crushing capacity of the device. The crushed rubber particles will fall into the receiving box 14.

[0034] In the second step, the transmission plate 23 will drive the two rotating rods 3 to rotate in a circle when rotating, and the circular rotation of the two rotating rods 3 will drive the two second gears 31 to rotate in a circle. Since the second gear 31 is meshed with the teeth 25 inside the outer ring frame 21, the second gear 31 will rotate on its own when the two second gears 31 rotate in a circle. The rotation of the second gear 31 will drive the rotating guide rod 33 to rotate on its own through the rotating rod 3. The two rotating guide rods 33 drive the rubber strip to rotate in the air. Since the motor 2 and the rotating guide rod 33 are arranged as a whole in an inclined manner in the feed trough 11, the rubber strip will keep falling outside the two rotating guide rods 33. By using the two rotating guide rods 33 to drive the rubber strip to fall in sections, a large number of rubber strips can be effectively avoided from falling at the same time, which greatly reduces the phenomenon that the crushing tool 13 is stuck during crushing. At the same time, when placing the rubber strip, the worker needs to manually shake the rubber strip, which reduces the difficulty of operation for the worker.

[0035] The outer wall of the pulverizer 1 is provided with a protective box 15 for fixing the motor 2. When the rubber strips enter the feed trough 11, a large number of rubber strips will be intertwined with each other. The intertwined rubber strips first contact the two rotating guide rods 33. The two rotating guide rods 33 rotate continuously to entangle the rubber strips, and the rubber strips will be deformed by force. A part of the rubber strips will be torn off by the rotation of the two rotating guide rods 33, and the broken rubber strips fall into the pulverizer 1 and are crushed by the crushing tool 13. The broken rubber strips are more easily crushed by the crushing tool 13, thereby improving the crushing efficiency.

[0036] The third step is that when the rotating guide rod 33 rotates, the rotating guide rod 33 rotates and drives the third gear 38 to rotate together. Since the rotating speed of the rotating guide rod 33 is greater than the rotating speed of the transmission plate 23, the third gear 38 will continuously mesh with the first gear 24. The rotation of the third gear 38 will drive the screw rod 37 to rotate. Since a guide plate 44 is provided under the sliding frame 4, and the guide plate 44 meshes with the threaded guide rail 39 on the surface of the screw rod 37, the rotation of the screw rod 37 will drive the sliding frame 4 to move. When the sliding frame 4 moves, the side sliders 43 on both sides will move inside the inner guide rail 34 provided in the rotating guide rod 33. By utilizing the cooperation of the outer ring frame 21 and the second gear 31, the rotating guide rod 33 and the transmission plate 23 rotate with a speed difference, so that the driving sliding frame 4 can be realized to move without an additional power source, which effectively improves the coordination between the devices.

[0037] The sliding frame 4 slides outside the screw rod 37 through the guide plate 44. Since a threaded slide rail 39 is provided outside the screw rod 37, and the two threads on the threaded slide rail 39 have the same pitch and the lines of the thread grooves are opposite, the sliding frame 4 can realize reciprocating movement outside the screw rod 37 through the guide plate 44. When the sliding frame 4 moves to the two ends of the screw rod 37, it will automatically move in the opposite direction. The sliding frame 4 reciprocates outside the rotating guide rod 33, which will drive the cutting knives 46 at the upper and lower ends to reciprocate, and at the same time drive the trapezoidal plates 45 on the front and rear sides of the cutting knife 46 to move. The movement of the trapezoidal plates 45 can enable the cutting knife 46 to push away the sealing strip 32 in advance, and the sealing strip 32 can prevent the rubber strip from entering the rotating guide rod 33. The trapezoidal plates 45 can ensure that the cutting knife 46 will not cut the sealing strip 32. The reciprocating movement of the cutting knife 46 can cut the rubber strip on the surface of the rotating guide rod 33, thereby further improving the ability of the rubber strip to be crushed.

[0038] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A rubber pulverizing device for rubber production, comprising a pulverizer (1), wherein a feed trough (11) is arranged above the pulverizer (1), and characterized in that: The side wall of the feed trough (11) is provided with a motor (2) and an outer ring frame (21); a transmission rod (22) is fixedly mounted on the end of the output shaft of the motor (2); a transmission plate (23) is fixedly mounted outside the transmission rod (22); two rotating rods (3) are installed through the transmission plate (23); a rotating guide rod (33) is fixedly mounted on the front ends of the two rotating rods (3); and a second gear (31) is fixedly mounted on the rear ends of the two rotating rods (3); Wherein, a screw rod (37) is rotatably mounted inside the two rotating rods (3), a threaded slide rail (39) is provided on the surface of each screw rod (37), a third gear (38) is fixedly mounted on the outer ring near the end of each screw rod (37) near the second gear (31), a sliding frame (4) is mounted on the surface of each screw rod (37), a guide plate (44) is rotatably mounted below each sliding frame (4), each guide plate (44) cooperates with the threaded slide rail (39) provided on the surface of the screw rod (37), and the two threads on the threaded slide rail (39) have the same pitch, and the lines of the thread grooves are opposite; The inner walls on the left and right sides of each rotating guide rod (33) are provided with inner slide rails (34), the inner walls on the left and right sides of each rotating guide rod (33) located below the inner slide rails (34) are provided with rotating grooves (35), the inner walls on the left and right sides of each rotating guide rod (33) located behind the rotating grooves (35) are provided with gear compartments (36), and the side walls of each rotating guide rod (33) are fixedly mounted with sealing strips (32); Each of the sliding frames (4) is fixedly mounted with side sliders (43) on both sides thereof, each of the side sliders (43) being located in an inner slide rail (34) formed by a rotating guide rod (33), and each of the sliding frames (4) is fixedly mounted with two connecting frames (41) on the lower end thereof, the two connecting frames (41) being located on both sides of a guide plate (44), and a table plate (42) being fixedly mounted on the lower end thereof, and a cutting knife (46) being fixedly mounted on the surface of each of the sliding frames (4) and the table plate (42), and each of the sliding frames (4) and the table plate located on both sides of the cutting knife (46) Two trapezoidal plates (45) are fixedly mounted on the surface of the outer ring frame (42), the two trapezoidal plates (45) on the same side face oppositely, and the outer walls of the two trapezoidal plates (45) are in contact with the sealing strip (32), the outer ring frame (21) is provided with teeth (25), each of the second gears (31) is meshed with the teeth (25) inside the outer ring frame (21), each of the lead screws (37) is installed in a rotating groove (35) opened in the rotating guide rod (33), each of the third gears (38) is installed in a gear compartment (36) opened in the rotating guide rod (33), and each of the lead screws (37) is installed in a rotating groove (35) opened in the rotating guide rod (33). The two ends of the outer ring frame (21) are rotatably connected to the inner wall of the rotating guide rod (33), the side wall of the outer ring frame (21) is fixedly mounted with a fixing frame (27), the interior of the fixing frame (27) is provided with an annular groove (29), the interior of the annular groove (29) is rotatably mounted with a rotating disk (28), the rotating disk (28) is mounted outside the two rotating guide rods (33), and the two rotating guide rods (33) are rotatably mounted inside the rotating disk (28), the surface of the transmission plate (23) is fixedly mounted with two first gears (24), the two first gears (24) are matched with the third gear (38), and each sliding frame A guide plate (44) is rotatably mounted below the two rotating guide rods (33). The rotation of the two rotating guide rods (33) drives the third gear (38) to contact the first gear (24). Since the rotation speed of the rotating guide rods (33) is greater than the rotation speed of the transmission plate (23), the third gear (38) and the first gear (24) will keep in contact. The rotation of the third gear (38) drives the screw rod (37) to rotate. The two first gears (24) are located on both sides of the transmission rod (22). The outer ring frame (21) is fixed in the inner wall of the feed trough (11). The motor (2) is fixed outside the side wall of the pulverizer (1).

2. A rubber crushing device for rubber production as claimed in claim 1, characterized in that: The fixing frame (27) protrudes from the inner wall of the feed trough (11), and a side baffle (12) is fixedly mounted on the inner wall of the feed trough (11), wherein the side baffle (12) is located at the front side of the fixing frame (27).

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