A mixing device for reducing the bubble content of mixed rubber material used in tire production

Abstract

The invention relates to the technical field of tire production, and specifically to a mixing device for reducing the bubble content of mixed rubber for tire production, comprising a vacuum barrel, a base movably clamped at the bottom of the vacuum barrel, a first ventilation pipe and a second ventilation pipe are arranged on the outer wall of the vacuum barrel, a box body is arranged on the first ventilation pipe and the second ventilation pipe, an activated carbon plate is arranged in the box body, a limiting component is arranged on the surface of the box body, a transition plate and a cone body are arranged inside the vacuum barrel, the cone body is located above the transition plate, an outer ring is fixed at the outer periphery of the upper end of the cone body, a thimble is arranged on the inner wall of the cone body, a bottom plate is fixed at the bottom center of the cone body, and a cover plate is arranged on the top of the vacuum barrel; the beneficial effect is: the device can break the bubbles in the mixed rubber, thereby reducing the amount of bubbles generated during rubber mixing, and thereby reducing the amount of defoaming agent added, which not only reduces the production cost but also improves the production quality of the tire.

Description

Technical Field

[0001] The invention relates to the technical field of tire production, in particular to a mixing device for tire production which can reduce the bubble content of mixed rubber. Background Art

[0002] In the tire production process, the bubble content of the rubber compound is one of the important factors affecting the tire quality. The main component of the tire is rubber, and rubber has a large viscosity. Bubbles remain in the rubber compound used to make the tire.

[0003] At present, a large amount of defoaming agent is used for defoaming treatment during production, and no special defoaming device is set up to deal with it, which leads to increased production costs when a large number of tires are produced. At the same time, adding other ingredients to the mixed rubber can easily lead to poor glue quality. If the bubbles are not discharged, it will affect the quality of the tire after molding.

[0004] Therefore, the present invention provides a mixing device for tire production that can reduce the bubble content of mixed rubber to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a mixing device for tire production which can reduce the bubble content of mixed rubber materials, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: A mixing device for reducing the bubble content of mixed rubber for tire production, comprising a vacuum barrel, a base is movably connected to the bottom of the vacuum barrel, a first ventilation pipe and a second ventilation pipe are arranged on the outer wall of the vacuum barrel, the first ventilation pipe and the second ventilation pipe are both provided with a box body, an activated carbon plate is arranged in the box body, and a limit position component is arranged on the surface of the box body;

[0007] A transition plate and a cone are provided inside the vacuum barrel. The cone is located above the transition plate. An outer ring is fixed at the periphery of the upper end of the cone. An ejector pin is provided on the inner wall of the cone. A bottom plate is fixed at the center of the bottom of the cone.

[0008] A cover plate is arranged on the top of the vacuum barrel, a support frame is arranged on the cover plate, a rotating shaft is connected to the support frame through a bearing, a turntable is fixed on one end of the rotating shaft, and a driven sprocket is fixed on the other end of the rotating shaft.

[0009] Preferably, an air pump is provided on the cover plate, and the air pump is connected to the vacuum barrel. The air pump is located next to the support frame. A base is fixed at the bottom of both sides of the support frame. The base is disc-shaped and fixed to the cover plate by bolts. A tire mold is fixed on the base. The tire mold is located in the vacuum barrel and below the transition plate.

[0010] Preferably, the rotating shaft is located on the central axis of the support frame, a motor is arranged on the cover plate, the motor is fixed in the frame, two groups of frames are provided, the two groups of frames are arranged near the front and rear ends of the motor respectively, the bottom of the frame is fixed on the cover plate, a driving sprocket is fixed on the output end of the motor, the driving sprocket is located directly below the driven sprocket, and the driven sprocket and the driving sprocket are connected by a chain.

[0011] Preferably, there is a gap between the bottom plate and the cone, a lifting rod is fixed at the center of the bottom plate surface, the lifting rod is located at the center of the cover plate surface, the lifting rod is slidably connected to the cover plate, a top block is fixed on the top of the lifting rod, the top block is located below the turntable, and a connecting rod is arranged between the top block and the turntable.

[0012] Preferably, one end of the connecting rod is movably connected to the top block, and the other end of the connecting rod is movably connected to the turntable, and the connection point between the connecting rod and the turntable is close to the edge of the turntable.

[0013] Preferably, an inner ring cavity is opened on the inner wall of the vacuum barrel, and the inner ring cavity is arranged near the top of the vacuum barrel, a guide rod is fixed in the inner ring cavity, and a plurality of guide rods are arranged and evenly distributed in the inner ring cavity, the outer ring is located in the inner ring cavity, and side ears are fixed on the outer surface of the outer ring, and a plurality of side ears are arranged and evenly distributed on the surface of the outer ring, and a guide hole is opened on the surface of the side ear, and the inner wall of the guide hole and the outer wall of the guide rod are slidably connected, and the outer ring and the side ears move up and down in the inner ring cavity.

[0014] Preferably, there are a plurality of ejectors which are evenly distributed on the inner surface of the cone, the tips of the ejectors are arranged vertically upward, the transition plate is disc-shaped, a plurality of evenly distributed transition holes are opened on the surface of the transition plate, a plurality of evenly distributed feed pipes are arranged on the surface of the vacuum barrel, a flange is fixed on the end face of each feed pipe, the flange is arranged close to the top of the vacuum barrel, and the feed pipe is located above the cone.

[0015] Preferably, both ends of the first ventilation pipe are connected to the vacuum barrel, one end of the first ventilation pipe is located between the transition plate and the cone, and the other end of the first ventilation pipe is located between the transition plate and the tire mold, and both ends of the second ventilation pipe are connected to the vacuum barrel, one end of the second ventilation pipe is located between the transition plate and the cone, and the other end of the second ventilation pipe is located between the cone and the cover plate.

[0016] Preferably, the box body is located in the middle position of the ventilation pipe, an insertion cavity is provided on the surface of the box body, slide grooves are provided on both sides of the insertion cavity, an activated carbon plate is provided in the insertion cavity, slide bars are fixed on both sides of the activated carbon plate, the slide bars and the slide grooves are slidably connected, a sealing plate is fixed at one end of the activated carbon plate, a sealing gasket is fixed on one surface of the sealing plate, the sealing gasket is in contact with and tightly pressed against the surface of the box body, a handle is fixed on the other surface of the sealing plate, outer plates are fixed on both sides of the sealing plate, and limiting holes are provided on the surface of the outer plates.

[0017] Preferably, the limit assembly includes an outer plate, a limit rod, a spring, a top plate and a pull ring. The limit assembly is provided with two groups, and the two groups of limit assemblies are respectively located on both sides of the end surface of the box body. Slots are opened on the opposite surfaces of the two groups of outer plates. The limit rod slides into the slot from the side of the outer plate. A top plate is fixed at the end surface of the limit rod. A spring is sleeved on the limit rod, and the spring is located between the outer plate and the top plate. One end of the spring is fixedly connected to the top plate, and the other end of the spring is fixedly connected to the outer plate. A pull ring is fixed on the surface of the top plate, the outer plate is inserted into the slot, and the limit rod is inserted into the limit hole.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The mixing equipment for tire production proposed by the present invention can reduce the bubble content of the mixed rubber material, and can break the bubbles in the mixed rubber material, thereby reducing the amount of bubbles generated during rubber mixing, and further reducing the amount of defoaming agent added, thereby reducing the production cost and improving the production quality of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a side view of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the vacuum barrel of the present invention;

[0023] Figure 4 This is a detailed diagram of the cone structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the inner ring cavity structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the box structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the outer plate structure of the present invention.

[0027] In the figure: 1. turntable; 2. connecting rod; 3. vacuum pump; 4. cover plate; 5. flange; 6. feed pipe;

[0028] 7. Base; 8. Box; 9. Limiting assembly; 10. Closing plate; 11. First ventilation pipe; 12. Vacuum barrel; 13. Support frame; 14. Second ventilation pipe; 16. Driven sprocket; 17. Chain; 18. Frame;

[0029] 19. Motor; 20. Tire mold; 21. Transition plate; 22. Transition hole; 23. Lifting rod; 24. Cone; 25. Outer ring; 26. Side ear; 27. Guide hole; 28. Guide rod; 29. ​​Ejector pin; 30. Ejector block;

[0030] 31. rotating shaft; 32. driving sprocket; 33. base; 34. bottom plate; 35. inner ring cavity; 36. sealing gasket;

[0031] 38. handle; 39. insert block; 40. limit hole; 41. activated carbon plate; 42. slide bar; 43. slide groove;

[0032] 44. Limit rod; 45. Slot; 46. Top plate; 47. Pull ring; 48. Insert cavity; 49. Outer plate; 50. Spring. DETAILED DESCRIPTION

[0033] Example 1: Please refer to Figure 1-Figure 7 The present invention provides a technical solution: a mixing device for reducing the bubble content of mixed rubber for tire production, comprising a vacuum barrel 12, a base 337 movably connected to the bottom of the vacuum barrel 12, a first ventilation pipe 11 and a second ventilation pipe 14 are arranged on the outer wall of the vacuum barrel 12, a box 8 is arranged on the first ventilation pipe 11 and the second ventilation pipe 14, an activated carbon plate 41 is arranged in the box 8, a limiting component 9 is arranged on the surface of the box 8, a transition plate 21 and a cone 24 are arranged inside the vacuum barrel 12, the cone 24 is located above the transition plate 21, an outer ring 25 is fixed at the outer periphery of the upper end of the cone 24, and a The ejector pin 29, a bottom plate 34 is fixed at the bottom center of the cone 24, a cover plate 4 is arranged on the top of the vacuum barrel 12, a support frame 13 is arranged on the cover plate 4, a rotating shaft 31 is connected to the support frame 13 through a bearing, a turntable 1 is fixed to one end of the rotating shaft 31, and a driven sprocket 16 is fixed to the other end of the rotating shaft 31; when in use, the mixed rubber entering the vacuum barrel 12 will pass through the cone 24 and the transition plate 21 in sequence, and cooperate with the set vacuum pump 3, the first conveying pipe and the second conveying pipe to achieve triple treatment of bubbles, improve the treatment effect of bubbles, when the bubbles pass through the cone 24, some bubbles will touch the ejector pin 29 to achieve a puncture effect;

[0034] An air pump 3 is provided on the cover plate 4, and the air pump 3 is connected to the vacuum barrel 12. The air pump 3 is located next to the support frame 13. Bases 337 are fixed to the bottom of both sides of the support frame 13. The base 337 is disc-shaped and is fixed to the cover plate 4 by bolts. A tire mold 20 is fixed on the base 337. The tire mold 20 is located in the vacuum barrel 12. The tire mold 20 is located below the transition plate 21. When in use, by starting the air pump 3, the inside of the vacuum barrel 12 can be effectively evacuated. The provided base 337 can increase the effective area of ​​the support frame 13 and the top cover, and is fixed by bolts to improve the stability of the support frame 13.

[0035] Embodiment 2: On the basis of embodiment 1, the rotating shaft 31 is located on the central axis of the support frame 13, the cover plate 4 is provided with a motor 19, the motor 19 is fixed in the frame 18, the frame 18 is provided with two groups, the two groups of frames 18 are respectively arranged near the front and rear ends of the motor 19, the bottom of the frame 18 is fixed on the cover plate 4, a driving sprocket 32 ​​is fixed on the output end of the motor 19, the driving sprocket 32 ​​is located directly below the driven sprocket 16, and the driven sprocket 16 and the driving sprocket 32 ​​are connected by a chain 17;

[0036] When in use, by starting the motor 19, the output end of the motor 19 will drive the active sprocket 32 ​​to rotate, and then through the transmission action of the chain 17, it will drive the driven sprocket 16 to rotate synchronously, and the transmission is transmitted through the sprocket chain 17 to ensure the continuity of the transmission action and avoid transmission delay;

[0037] There is a gap between the bottom plate 34 and the cone 24, a lifting rod 23 is fixed at the center of the surface of the bottom plate 34, the lifting rod 23 is located at the center of the surface of the cover plate 4, the lifting rod 23 is slidably connected to the cover plate 4, a top block 30 is fixed on the top of the lifting rod 23, the top block 30 is located below the turntable 1, a connecting rod 2 is arranged between the top block 30 and the turntable 1, one end of the connecting rod 2 is movably connected to the top block 30, the other end of the connecting rod 2 is movably connected to the turntable 1, and the connection point between the connecting rod 2 and the turntable 1 is close to the edge of the turntable 1;

[0038] When in use, after the driven sprocket 16 rotates, it will drive the rotating shaft 31 to rotate, and then drive the turntable 1 to rotate. Through the action of the connecting rod 2, it will drive the lifting rod 23 to perform a reciprocating lifting operation.

[0039] Embodiment 3: On the basis of embodiment 2, an inner ring cavity 35 is provided on the inner wall of the vacuum barrel 12, and the inner ring cavity 35 is arranged near the top of the vacuum barrel 12. A guide rod 28 is fixed in the inner ring cavity 35, and a plurality of guide rods 28 are provided, and the plurality of guide rods 28 are evenly distributed in the inner ring cavity 35. The outer ring 25 is located in the inner ring cavity 35, and a side ear 26 is fixed on the outer surface of the outer ring 25, and a plurality of side ears 26 are provided, and the plurality of side ears 26 are evenly distributed on the surface of the outer ring 25. A guide hole 27 is provided on the surface of the side ear 26, and the inner wall of the guide hole 27 and the outer wall of the guide rod 28 are slidably connected, and the outer ring 25 and the side ear 26 move up and down in the inner ring cavity 35;

[0040] When in use, when the lifting rod 23 performs reciprocating lifting operation, it will synchronously drive the cone 24 to perform reciprocating lifting operation, and the provided guide rod 28 will slide in the guide hole 27 accordingly, providing guidance and support for the movement of the cone 24, thereby improving the smoothness and stability of the movement of the cone 24;

[0041] There are a plurality of ejector pins 29, which are evenly distributed on the inner surface of the cone 24. The tip of the ejector pin 29 is vertically upward. The transition plate 21 is disc-shaped. A plurality of evenly distributed transition holes 22 are opened on the surface of the transition plate 21. A plurality of evenly distributed feed pipes 6 are arranged on the surface of the vacuum barrel 12. A flange 5 is fixed on the end face of each feed pipe 6. The flange 5 is arranged close to the top of the vacuum barrel 12. The feed pipe 6 is located above the cone 24.

[0042] When in use, a plurality of evenly distributed ejector pins 29 will drive the ejector pins 29 to move synchronously when the cone 24 is continuously lifted and reciprocated, thereby effectively contacting and puncturing some bubbles in the mixed rubber material to achieve preliminary treatment. A flange 5 is provided at the end of the feed pipe 6 to facilitate pipeline connection.

[0043] Embodiment 4: On the basis of Embodiment 3, both ends of the first ventilation pipe 11 are connected to the vacuum barrel 12, one end of the first ventilation pipe 11 is located between the transition plate 21 and the cone 24, and the other end of the first ventilation pipe 11 is located between the transition plate 21 and the tire mold 20, and both ends of the second ventilation pipe 14 are connected to the vacuum barrel 12, one end of the second ventilation pipe 14 is located between the transition plate 21 and the cone 24, and the other end of the second ventilation pipe 14 is located between the cone 24 and the cover plate 4;

[0044] When in use, when the pumping pump is working, the first vent pipe 11 will realize the communication between the space above the transition plate 21 and the space above the tire mold 20, which is convenient for the circulation of gas, and the second vent pipe 14 will realize the communication between the space above the transition plate 21 and the space above the cone 24, which is convenient for the circulation of gas;

[0045] The box body 8 is located in the middle of the ventilation pipe, and an inserting cavity 48 is provided on the surface of the box body 8, and slide grooves 43 are provided on both sides of the inserting cavity 48. An activated carbon plate 41 is provided in the inserting cavity 48, and slide bars 42 are fixed on both sides of the activated carbon plate 41. The slide bars 42 and the slide grooves 43 are slidably connected. A sealing plate 10 is fixed to one end of the activated carbon plate 41, and a sealing gasket 36 is fixed on the surface of one side of the sealing plate 10. The sealing gasket 36 contacts and presses against the surface of the box body 8, and a handle 38 is fixed on the other side of the sealing plate 10. External plates 49 are fixed on both sides of the sealing plate 10, and a limiting hole 40 is provided on the surface of the external plate 49.

[0046] When in use, by setting a box body 8 in the middle of the two groups of delivery pipes, and providing a detachable activated carbon plate 41 in the box body 8, the gas can be effectively purified. At the same time, the activated carbon plate 41 is easy to install and disassemble, and is convenient for replacement. When the activated carbon plate 41 is set in the insertion cavity 48, the set sealing gasket 36 is in contact with and tightly pressed against the surface of the box body 8 to improve the sealing performance. The handle 38 is provided to facilitate the movement of the sealing plate 10;

[0047] The limiting assembly 9 includes an outer plate 49, a limiting rod 44, a spring 50, a top plate 46 and a pull ring 47. The limiting assembly 9 is provided with two groups. The two groups of limiting assemblies 9 are respectively located on both sides of the end surface of the box body 8. Slots 45 are provided on the opposite surfaces of the two groups of outer plates 49. The limiting rod 44 slides into the slot 45 from the side of the outer plate 49. A top plate 46 is fixed at the end surface of the limiting rod 44. A spring 50 is sleeved on the limiting rod 44. The spring 50 is located between the outer plate 49 and the top plate 46. One end of the spring 50 is fixedly connected to the top plate 46, and the other end of the spring 50 is fixedly connected to the outer plate 49. A pull ring 47 is fixed on the surface of the top plate 46. The outer plate 49 is inserted into the slot 45, and the limiting rod 44 is inserted into the limiting hole 40.

[0048] When in use, by pulling the pull ring 47, the top plate 46 and the limiting rod 44 are moved, so that the limiting rod 44 is pulled out of the limiting hole 40, and the limiting effect of the insert block 39 is cancelled. At this time, the limiting rod 44 is kept in a state, and the two sets of activated carbon plates 41 can be pulled out of the insertion cavity 48 by pulling the handle 38, so as to facilitate replacement. When installing the activated carbon plate 41, by pulling the pull ring 47, the end of the limiting rod 44 is moved out of the slot 45, and the spring 50 is The force stretches and stores elastic potential energy. At this time, hold the handle 38 to move the sealing plate 10 and the activated carbon plate 41, and slide the slide bar 42 into the slide groove 43 accordingly. With continuous pushing, the activated carbon plate 41 will be inserted into the slot 45, and then the insert block 39 will be inserted into the slot 45. At this time, the limit rod 44 corresponds to the limit hole 40, and the pulling force on the pull ring 47 is cancelled. Under the rebound action of the spring 50, the limit rod 44 will be automatically inserted into the limit hole 40 to achieve the limiting effect.

[0049] In actual use, the material is fed into the vacuum barrel 12 through the provided feed pipe 6, and by starting the motor 19, the output end of the motor 19 will drive the active sprocket 32 ​​to rotate, and then drive the driven sprocket 16 to rotate under the action of the chain 17, and then drive the rotating shaft 31 to rotate, and then drive the turntable 1 to rotate, thereby making the connecting rod 2 move. Since one end of the connecting rod 2 is movably connected to the turntable 1, and the other end of the connecting rod 2 is movably connected to the top block 30, the lifting rod 23 is reciprocated up and down, and then the cone 24 is driven to move up and down. The mixed rubber material fed through the feed pipe 6 will fall onto the cone 24, and some bubbles in the mixed rubber material will contact the provided ejector pin 29 and be punctured to release the internal gas. At the same time, the vacuum pump 3 is started to absorb the gas released by the punctured bubbles above the cone 24. At this time, the released gas is less, and then the mixed rubber material enters the transition plate 2 through the gap between the bottom plate 34 and the cone 24 1, and then enter the tire mold 20 through the transition hole 22 opened on the surface of the transition plate 21. In this process, under the action of gravity, some bubbles will be squeezed above the mixed rubber material, and through the action of the second air pipe and the vacuum pump 3, the space between the cone 24 and the transition plate 21 will gradually become vacuum, and this part of the bubbles will be burst, and then enter the second air pipe, and finally enter the pump, and the mixed rubber material falling on the tire mold 20 will accumulate in large quantities, and under the action of the pumping pump and the first delivery pipe, a gradual vacuum will be achieved between the transition plate 21 and the tire mold 20, and then a large number of bubbles inside the mixed rubber material will float to the surface of the mixed rubber material and then burst, thereby achieving effective treatment of the bubbles, and the released gas is finally transported to the vacuum pump 3 through the first delivery pipe and the second delivery pipe, and the released gas is mostly harmful gas. By filtering in the box body 8, the harmful gas can be effectively purified, the harmfulness of the exhaust gas in the vacuum barrel 12 can be reduced, and the environmental protection is strong.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mixing device for reducing the bubble content of mixed rubber for tire production, comprising a vacuum drum (12), characterized in that: The bottom of the vacuum barrel (12) is movably connected with a base (33) (7), a first ventilation pipe (11) and a second ventilation pipe (14) are arranged on the outer wall of the vacuum barrel (12), a box (8) is arranged on the first ventilation pipe (11) and the second ventilation pipe (14), an activated carbon plate (41) is arranged in the box (8), and a limit assembly (9) is arranged on the surface of the box (8); The vacuum barrel (12) is provided with a transition plate (21) and a cone (24), the cone (24) is located above the transition plate (21), an outer ring (25) is fixed at the periphery of the upper end of the cone (24), an ejector pin (29) is provided on the inner wall of the cone (24), and a bottom plate (34) is fixed at the center of the bottom of the cone (24); The top of the vacuum barrel (12) is provided with a cover plate (4), a support frame (13) is provided on the cover plate (4), a rotating shaft (31) is connected to the support frame (13) via a bearing, a rotating disk (1) is fixed to one end of the rotating shaft (31), and a driven sprocket (16) is fixed to the other end of the rotating shaft (31).

2. A mixing device for reducing the bubble content of mixed rubber for tire production according to claim 1, characterized in that: The cover plate (4) is provided with an air pump (3), the air pump (3) is connected to the vacuum barrel (12), the air pump (3) is located beside the support frame (13), the bottoms of both sides of the support frame (13) are fixed with bases (33) (7), the bases (33) (7) are disc-shaped, the bases (33) (7) are fixed to the cover plate (4) by bolts, a tire mold (20) is fixed to the base (33) (7), the tire mold (20) is located in the vacuum barrel (12), and the tire mold (20) is located below the transition plate (21).

3. The mixing equipment for reducing the bubble content of the mixed rubber material for tire production according to claim 1, characterized in that: The rotating shaft (31) is located on the central axis of the support frame (13). A motor (19) is arranged on the cover plate (4). The motor (19) is fixed in the frame (18). The frame (18) is provided with two groups. The two groups of frames (18) are respectively arranged near the front and rear ends of the motor (19). The bottom of the frame (18) is fixed on the cover plate (4). A driving sprocket (32) is fixed on the output end of the motor (19). The driving sprocket (32) is located directly below the driven sprocket (16). The driven sprocket (16) and the driving sprocket (32) are connected by a chain (17).

4. The mixing equipment for reducing the bubble content of the mixed rubber material for tire production according to claim 1, characterized in that: There is a gap between the bottom plate (34) and the cone (24); a lifting rod (23) is fixed at the center of the surface of the bottom plate (34); the lifting rod (23) is located at the center of the surface of the cover plate (4); the lifting rod (23) is slidably connected to the cover plate (4); a top block (30) is fixed at the top of the lifting rod (23); the top block (30) is located below the turntable (1); and a connecting rod (2) is provided between the top block (30) and the turntable (1).

5. A mixing device for reducing the bubble content of mixed rubber for tire production according to claim 4, characterized in that: One end of the connecting rod (2) is movably connected to the top block (30), and the other end of the connecting rod (2) is movably connected to the turntable (1). The connection point between the connecting rod (2) and the turntable (1) is close to the edge of the turntable (1).

6. The mixing equipment for reducing the bubble content of the mixed rubber material for tire production according to claim 1, characterized in that: An inner ring cavity (35) is provided on the inner wall of the vacuum barrel (12), and the inner ring cavity (35) is arranged near the top of the vacuum barrel (12). A guide rod (28) is fixed in the inner ring cavity (35), and a plurality of guide rods (28) are provided, and the plurality of guide rods (28) are evenly distributed in the inner ring cavity (35). The outer ring (25) is located in the inner ring cavity (35), and a side ear (26) is fixed on the outer surface of the outer ring (25), and a plurality of side ears (26) are provided, and the plurality of side ears (26) are evenly distributed on the surface of the outer ring (25). A guide hole (27) is provided on the surface of the side ear (26), and the inner wall of the guide hole (27) and the outer wall of the guide rod (28) are slidably connected, and the outer ring (25) and the side ear (26) move up and down in the inner ring cavity (35).

7. A mixing device for reducing bubble content in mixed rubber for tire production according to claim 1, characterized in that: A plurality of ejector pins (29) are provided, and the plurality of ejector pins (29) are evenly distributed on the inner surface of the conical body (24). The tip of the ejector pin (29) is arranged vertically upward. The transition plate (21) is disc-shaped, and a plurality of evenly distributed transition holes (22) are opened on the surface of the transition plate (21). A plurality of evenly distributed feed pipes (6) are arranged on the surface of the vacuum barrel (12). A flange plate (5) is fixed at the end surface of each feed pipe (6). The flange plate (5) is arranged close to the top of the vacuum barrel (12). The feed pipe (6) is located above the conical body (24).

8. The mixing equipment for reducing the bubble content of the mixed rubber material for tire production according to claim 1, characterized in that: Both ends of the first ventilation pipe (11) are in communication with the vacuum barrel (12); one end of the first ventilation pipe (11) is located between the transition plate (21) and the cone (24); the other end of the first ventilation pipe (11) is located between the transition plate (21) and the tire mold (20); both ends of the second ventilation pipe (14) are in communication with the vacuum barrel (12); one end of the second ventilation pipe (14) is located between the transition plate (21) and the cone (24); the other end of the second ventilation pipe (14) is located between the cone (24) and the cover plate (4).

9. The mixing equipment for reducing the bubble content of the mixed rubber material for tire production according to claim 1, characterized in that: The box body (8) is located at the middle position of the ventilation pipe, and an insertion cavity (48) is provided on the surface of the box body (8). Slide grooves (43) are provided on both sides of the insertion cavity (48). An activated carbon plate (41) is provided in the insertion cavity (48). Slide bars (42) are fixed on both sides of the activated carbon plate (41). The slide bars (42) and the slide grooves (43) are slidably connected. A sealing plate (10) is fixed at one end of the activated carbon plate (41). A sealing gasket (36) is fixed on one side surface of the sealing plate (10). The sealing gasket (36) and the surface of the box body (8) are in contact and pressed tightly. A handle (38) is fixed on the other side surface of the sealing plate (10). External plates (49) are fixed on both sides of the sealing plate (10). Limiting holes (40) are provided on the surface of the external plates (49).

10. A mixing device for reducing bubble content in mixed rubber for tire production according to claim 1, characterized in that: The limiting assembly (9) comprises an outer plate (49), a limiting rod (44), a spring (50), a top plate (46) and a pull ring (47). The limiting assembly (9) is provided with two groups, and the two groups of limiting assemblies (9) are respectively located on both sides of the end surface of the box body (8). The two groups of outer plates (49) are provided with slots (45) on the opposite surfaces. The limiting rod (44) slides from the side of the outer plate (49) into the slot (45). The end surface of the limiting rod (44) is fixed A top plate (46) is fixedly provided, a spring (50) is sleeved on the limiting rod (44), the spring (50) is located between the outer plate (49) and the top plate (46), one end of the spring (50) is fixedly connected to the top plate (46), the other end of the spring (50) is fixedly connected to the outer plate (49), a pull ring (47) is fixed on the surface of the top plate (46), the outer plate (49) is inserted into the slot (45), and the limiting rod (44) is inserted into the limiting hole (40).

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