Mixing device for tire rubber composition of modified carbon black

Abstract

The utility model relates to the technical field of tire processing, in particular to a mixing device of a tire rubber composition of modified carbon black, which comprises a heatable mixing drum component, a cover plate is connected to an opening at the upper end of the mixing drum component, a transition round pipe is connected to the lower end of the mixing drum component, and a mixing mechanism extending into an inner cavity of the mixing drum component penetrates through the center of the cover plate. An inner cavity of the transition round pipe is slidably connected with a spiral conveyor assembly, and a conical plugging plate matched with the transition round pipe is arranged over the transition round pipe. The device further comprises an upper telescopic driving mechanism and a lower telescopic driving mechanism, the upper telescopic driving mechanism is connected with the conical plugging plate, and the lower telescopic driving mechanism is connected with the spiral conveyor assembly. The rubber mixing device is reasonable in structure, mixed rubber is output from the inner cavity of the mixing drum assembly through the spiral conveyor assembly, so that the mixed rubber can be smoothly output, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire processing, in particular to a mixing device for a tire rubber composition of modified carbon black. Background Art

[0002] Rubber mixing is a process of mixing and processing rubber with other additives to obtain the desired rubber products. During the mixing process, fillers such as carbon black and white carbon black are added to latex (natural latex or synthetic latex), mixed and dispersed by stirring, and then flocculated (co-precipitated) to make masterbatch or compound rubber. This technology can reduce energy consumption, improve production efficiency, and reduce dust pollution. Rubber mixers are needed for rubber mixing.

[0003] Publication (Announcement) No.: CN220280146U A novel rubber mixing machine. It includes a mixing box and a discharging box. The top of the mixing box is provided with a material injection port, the top of the material injection port is rotatably connected with a cover plate, the cover plate is fixed to the material injection port through a fixing assembly, an electric push rod is fixed to the top of the mixing box, the extended end of the electric push rod is fixedly connected with a connecting plate, a motor 1 is fixed on the connecting plate, a stirring assembly is connected to the motor 1, a heating plate is embedded on the inner wall of the mixing box, a partition is provided inside the mixing box, a discharging box is provided below the partition, a material guide assembly is provided in the discharging box, and a discharging channel is fixedly connected between the partition and the discharging box. The utility model can block the discharging port, and can scrape off the rubber attached to the inner wall of the mixing box, so that the rubber can be mixed more completely and thoroughly, and the mixing effect is improved.

[0004] The above-mentioned prior art solutions have the following defects: since the mixed rubber has a relatively high viscosity, a relatively large adhesive force is generated between the mixed rubber and the inner wall of the discharge channel, resulting in the mixed rubber being unable to flow out smoothly, thereby reducing the use effect. Utility Model Content

[0005] The main technical problem solved by the utility model is to provide a mixing device for a tire rubber composition of modified carbon black, which outputs the mixed rubber from the inner cavity of a mixing drum assembly through a spiral feeder assembly, so that the mixed rubber can be smoothly output, thereby improving the use effect.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a mixing device for a modified carbon black tire rubber composition, comprising: a heatable mixing drum assembly, the upper end opening of the mixing drum assembly is connected to a cover plate, the lower end is connected to a transition tube, the center of the cover plate is provided with a stirring mechanism extending into the inner cavity of the mixing drum assembly, the inner cavity of the transition tube is slidably connected to a spiral feeder assembly, and a conical sealing plate adapted to the transition tube is provided directly above the transition tube;

[0007] It also includes an upper telescopic drive mechanism and a lower telescopic drive mechanism. The upper telescopic drive mechanism is connected to the conical sealing plate and is suitable for driving the conical sealing plate to enter the inner cavity of the transition circular tube for sealing. The lower telescopic drive mechanism is connected to the spiral feeder assembly and is suitable for driving the spiral feeder assembly to move vertically.

[0008] By adopting the above technical scheme, when in use, fillers such as latex, carbon black and white carbon black are put into the inner cavity of the mixing drum assembly, the mixing drum assembly heats the rubber raw material for a period of time, and the stirring mechanism works to stir the rubber raw material. After the rubber raw material is stirred and mixed evenly, the upper telescopic drive mechanism is operated to drive the conical sealing plate to move upward, and the conical sealing plate is separated from the inner cavity of the transition tube. The lower telescopic drive mechanism is operated to drive the spiral feeder assembly to move upward and extend into the inner cavity of the mixing drum assembly. The spiral feeder assembly works to spirally output the mixed rubber downward, so that the mixed rubber is smoothly output from the inner cavity of the mixing drum assembly to the outside, thereby improving the use effect.

[0009] In a preferred example, the utility model can be further configured as follows: the spiral feeder assembly includes an arc-shaped tube body and a rotating shaft vertically passing through the inner cavity thereof; the arc-shaped tube body is slidably connected to the inner cavity of the transition circular tube; the outer edge of the rotating shaft is sleevedly connected with a spiral blade; the upper end of the spiral blade extends to the top of the arc-shaped tube body; the outer surface of the arc-shaped tube body is connected with a fixing plate; the fixing plate is provided with a lower driving motor for driving the rotating shaft.

[0010] By adopting the above technical solution, when in use, the lower drive motor drives the rotating shaft to rotate, the rotating shaft drives the spiral blade to rotate, and the upper end of the spiral blade extends into the inner cavity of the mixing drum assembly, so that the spiral blade can more smoothly output the mixed rubber spiral to the outside.

[0011] In a preferred example, the utility model can be further configured as follows: the mixing drum assembly includes a mixing drum body and an annular hollow cavity arranged on its circular wall, an electric heating belt is spirally connected in the annular hollow cavity, and two inclined feed pipes are symmetrically connected to the outer edge of the mixing drum body, and the openings of the inclined feed pipes are respectively connected to circular plugs.

[0012] By adopting the above technical solution, the electric heating belt is connected to an external power source. The heat generated by the electric heating belt is transferred to the rubber raw material, so that the temperature of the raw material increases and melts, which facilitates the uniform mixing of latex, carbon black, white carbon black and other fillers. Through the setting of the inclined feed pipe, it is convenient to put latex, carbon black, white carbon black and other fillers into the inner cavity of the mixing drum assembly. After the raw materials are put into the inner cavity of the mixing drum assembly, the round plug is covered on the opening of the inclined feed pipe to reduce the heat dissipation to the outside.

[0013] In a preferred example, the utility model can be further configured as follows: the stirring mechanism includes a hollow shaft passing through the center of the cover plate, the outer edge of the lower end of the hollow shaft is connected to no less than 2 stirring rods in a circular array, and also includes a rotating drive member for driving the hollow shaft to rotate.

[0014] By adopting the above technical solution, the rotating driving member drives the hollow shaft to rotate, and the hollow shaft drives the stirring rod to rotate. The stirring rod stirs the heated rubber raw materials, so that latex, carbon black, white carbon black and other fillers are evenly mixed together to achieve the purpose of mixing.

[0015] In a preferred example, the utility model can be further configured as follows: the stirring rod member includes a vertical stirring plate and a plurality of horizontal stirring plates, the horizontal stirring plates are arranged at intervals and one end is connected to the vertical stirring plate, and the other end is connected to the outer edge of the hollow shaft, the lower end of the vertical stirring plate is connected to a plurality of inclined stirring plates at intervals, the rotating drive member includes a driven gear sleeved on the outer edge of the upper end of the hollow shaft, the upper plane of the cover plate is connected to an L-shaped mounting seat, an upper driving motor is mounted on the L-shaped mounting seat, and a driving gear meshing with the driven gear is sleeved on the output shaft of the upper driving motor.

[0016] By adopting the above technical scheme, the upper driving motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the vertical stirring plate and the horizontal stirring plate on the hollow shaft to rotate in a circle, the vertical stirring plate drives the inclined stirring plate to rotate in a circle, the vertical stirring plate scrapes off the rubber adhered to the inner surface of the circular wall of the stirring drum assembly for stirring, the inclined stirring plate can scrape off the rubber raw material adhered to the bottom inner wall of the stirring drum assembly for stirring, and the horizontal stirring plate stirs the rubber raw material in the inner cavity of the stirring drum assembly, thereby enhancing the uniformity of the stirring and mixing of the rubber raw materials.

[0017] In a preferred example, the utility model can be further configured as follows: the upper telescopic drive mechanism includes a first U-shaped plate, a second U-shaped plate and a drive rod passing through the inner hole of the hollow shaft, the first U-shaped plate is connected to the upper plane of the cover plate, the second U-shaped plate is connected to the upper plane of the first U-shaped plate, the lower end of the drive rod is connected to the conical blocking plate, and the upper end passes through the first U-shaped plate and extends into the inner cavity of the second U-shaped plate, the upper plane of the second U-shaped plate is connected to the first electric push rod, and the telescopic rod of the first electric push rod is connected to the upper end of the drive rod.

[0018] By adopting the above technical solution, the telescopic rod of the first electric push rod extends and retracts, thereby driving the conical sealing plate connected to the driving rod to enter or detach from the inner cavity of the transition circular tube. After the conical sealing plate enters the inner cavity of the transition circular tube, the upper plane of the conical sealing plate is flush with the upper end surface of the transition circular tube, and the conical sealing plate seals the transition circular tube, so that the rubber raw materials are fully stirred and mixed. After the conical sealing plate detaches from the inner cavity of the transition circular tube, the mixed rubber can enter the inner cavity of the spiral feeder assembly and be spirally output.

[0019] In a preferred example, the utility model can be further configured as follows: the lower telescopic drive mechanism includes two symmetrically arranged lower telescopic drive rod assemblies, the lower telescopic drive rod assembly includes a second electric push rod, a fixed seat connected to the upper and lower ends thereof, and a horizontal plate, the fixed seat is connected to the outer surface of the mixing drum assembly, and the horizontal plate is connected to the outer surface of the spiral feeder assembly.

[0020] By adopting the above technical solution, the telescopic rod of the second electric push rod extends and retracts, thereby driving the spiral feeder assembly to slide in the inner cavity of the transition circular tube. After the spiral feeder assembly moves upward and extends into the inner cavity of the mixing drum assembly, it is convenient to smoothly output the mixed rubber. After the spiral feeder assembly moves downward, it is convenient for the upper telescopic drive mechanism to drive the conical sealing plate to enter the inner cavity of the transition circular tube for sealing.

[0021] In a preferred example, the present invention can be further configured as follows: the outer surface of the mixing drum assembly is connected to a supporting frame.

[0022] By adopting the above technical solution, the support frame plays a role of fixing and supporting the mixing drum assembly, so that the spiral feeder assembly is at a certain height from the ground.

[0023] In summary, the utility model includes at least one of the following beneficial technical effects:

[0024] After the rubber raw materials are stirred and mixed evenly, the upper telescopic drive mechanism is operated to drive the conical sealing plate to move upward, and the conical sealing plate is separated from the inner cavity of the transition tube. The lower telescopic drive mechanism is operated to drive the spiral feeder assembly to move upward and extend into the inner cavity of the mixing drum assembly. The spiral feeder assembly works to spirally output the mixed rubber downward, so that the mixed rubber is smoothly output from the inner cavity of the mixing drum assembly to the outside, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0026] Figure 1 The utility model is a structural schematic diagram of a preferred embodiment of a mixing device for a tire rubber composition of modified carbon black.

[0027] Figure 2 yes Figure 1 Schematic diagram of the structure of the mixing drum assembly.

[0028] Figure 3 yes Figure 1 Schematic diagram of the structure of the connection between the middle and upper telescopic drive mechanism and the conical sealing plate.

[0029] Figure 4 yes Figure 1 Schematic diagram of the structure of the spiral feeder assembly.

[0030] Figure 5 yes Figure 1 Schematic diagram of the structure of the middle support frame.

[0031] In the figure: 1, cover plate; 20, mixing drum assembly; 3, transition tube; 40, mixing mechanism; 50, spiral feeder assembly; 6, conical blocking plate; 70, upper telescopic drive mechanism; 80, lower telescopic drive mechanism; 9, support frame;

[0032] 21. Mixing cylinder; 22. Annular hollow cavity; 23. Electric heating belt; 24. Inclined feed pipe; 25. Round plug;

[0033] 41. hollow shaft; 42. stirring rod; 43. rotating driving member; 421. vertical stirring plate; 422. horizontal stirring plate; 423. inclined stirring plate; 431. driven gear; 432. L-shaped mounting seat; 433. upper driving motor; 434. driving gear;

[0034] 51. arc-shaped tube body; 52. rotating shaft; 53. spiral blade; 54. fixing plate; 55. lower driving motor;

[0035] 71. first U-shaped plate; 72. second U-shaped plate; 73. driving rod; 74. first electric push rod;

[0036] 81. Lower telescopic driving rod assembly; 811. Second electric push rod; 812. Fixed seat; 813. Horizontal plate. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0038] It should be noted that these drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0039] Reference Figures 1 to 5 , a mixing device for a modified carbon black tire rubber composition disclosed in the utility model, comprising: a heatable mixing drum assembly 20, the outer surface of the mixing drum assembly 20 is connected to a support frame 9, the support frame 9 fixes and supports the mixing drum assembly 20, the upper end opening of the mixing drum assembly 20 is connected to a cover plate 1, and the lower end is connected to a transition circular pipe 3, the mixing drum assembly 20 comprises a mixing drum body 21 and an annular hollow cavity 22 arranged on its circular wall, an electric heating belt 23 is spirally connected in the annular hollow cavity 22, the outer edge of the mixing drum body 21 is symmetrically connected to two inclined feeding pipes 24, and the openings of the inclined feeding pipes 24 are respectively connected to circular plugs 25; latex, carbon black, white carbon black and other fillers to be mixed are put into the inner cavity of the mixing drum body 21 from the inclined feeding pipes 24, the electric heating belt 23 is connected to an external power supply, and the electric heating belt 23 generates heat to heat the latex, carbon black, white carbon black and other fillers to melt and mix them.

[0040] The center of the cover plate 1 is penetrated with a stirring mechanism 40 extending into the inner cavity of the stirring drum assembly 20, and the stirring mechanism 40 includes a hollow shaft 41 passing through the center of the cover plate 1, and the outer edge of the lower end of the hollow shaft 41 is connected to at least two stirring rods 42 in a circular array, and also includes a rotating drive member 43 for driving the hollow shaft 41 to rotate; the stirring rod member 42 includes a vertical stirring plate 421 and a plurality of horizontal stirring plates 422, the horizontal stirring plates 422 are arranged at intervals and one end is connected to the vertical stirring plate 421, and the other end is connected to the outer edge of the hollow shaft 41, and the lower end of the vertical stirring plate 421 is connected to a plurality of inclined stirring plates 423 at intervals, and the rotating drive member 43 includes a driven gear 431 sleeved and connected to the outer edge of the upper end of the hollow shaft 41, and the upper plane of the cover plate 1 is connected to an L-shaped mounting seat 432, and an upper drive member 43 is installed on the L-shaped mounting seat 432. The upper driving motor 433 is provided with a driving gear 434 meshing with the driven gear 431; the upper driving motor 433 drives the driving gear 434 to rotate, the driving gear 434 drives the driven gear 431 to rotate, the driven gear 431 drives the vertical stirring plate 421 and the horizontal stirring plate 422 on the hollow shaft 41 to rotate in a circle, the vertical stirring plate 421 drives the inclined stirring plate 423 to rotate in a circle, the vertical stirring plate 421 scrapes off the rubber adhered to the inner surface of the circular wall of the mixing cylinder 21 for stirring, the inclined stirring plate 423 can scrape off the rubber raw material adhered to the bottom inner wall of the mixing cylinder 21 for stirring, and the horizontal stirring plate 422 stirs the rubber raw material in the inner cavity of the mixing cylinder 21, thereby enhancing the uniformity of the stirring and mixing of the rubber raw materials.

[0041] The inner cavity of the transition circular tube 3 is slidably connected with a spiral feeder assembly 50, and a conical plugging plate 6 adapted thereto is provided just above the transition circular tube 3; it also includes an upper telescopic drive mechanism 70 and a lower telescopic drive mechanism 80, the upper telescopic drive mechanism 70 is connected to the conical plugging plate 6, and is suitable for driving the conical plugging plate 6 to enter the inner cavity of the transition circular tube 3 for plugging, and the lower telescopic drive mechanism 80 is connected to the spiral feeder assembly 50, and is suitable for driving the spiral feeder assembly 50 to move vertically; the spiral feeder assembly 50 includes an arc-shaped tube body 51 and a rotating shaft 52 vertically penetrating its inner cavity, the arc-shaped tube body 51 is slidably connected to the inner cavity of the transition circular tube 3 The outer edge of the rotating shaft 52 is sleevedly connected with a spiral blade 53, and the upper end of the spiral blade 53 extends to the top of the arc-shaped tube body 51. The outer surface of the arc-shaped tube body 51 is connected with a fixing plate 54, and the fixing plate 54 is installed with a lower driving motor 55 for driving the rotating shaft 52; the lower telescopic driving mechanism 80 drives the spiral feeder assembly 50 to move upward, and the spiral blade 53 on the spiral feeder assembly 50 extends into the inner cavity of the mixing drum 21, and the lower driving motor 55 drives the rotating shaft 52 to rotate, and the rotating shaft 52 drives the spiral blade 53 to rotate, so that the spiral blade 53 can more smoothly output the mixed rubber spiral to the outside.

[0042] The upper telescopic driving mechanism 70 includes a first U-shaped plate 71, a second U-shaped plate 72 and a driving rod 73 passing through the inner hole of the hollow shaft 41. The first U-shaped plate 71 is connected to the upper plane of the cover plate 1, and the second U-shaped plate 72 is connected to the upper plane of the first U-shaped plate 71. The lower end of the driving rod 73 is connected to the conical blocking plate 6, and the upper end passes through the first U-shaped plate 71 and then extends into the inner cavity of the second U-shaped plate 72. The upper plane of the second U-shaped plate 72 is connected to a first electric push rod 74, and the telescopic rod of the first electric push rod 74 is connected to the upper end of the driving rod 73; The telescopic rod of an electric push rod 74 extends and retracts, thereby driving the conical sealing plate 6 connected to the driving rod 73 to enter or leave the inner cavity of the transition circular tube 3. After the conical sealing plate 6 enters the inner cavity of the transition circular tube 3, the upper plane of the conical sealing plate 6 is flush with the upper end surface of the transition circular tube 3. The conical sealing plate 6 seals the transition circular tube 3 to facilitate the sufficient stirring and mixing of the rubber raw materials. After the conical sealing plate 6 leaves the inner cavity of the transition circular tube 3, the mixed rubber can enter the inner cavity of the spiral feeder assembly 50 and be spirally output.

[0043] The lower telescopic driving mechanism 80 includes two symmetrically arranged lower telescopic driving rod assemblies 81, and the lower telescopic driving rod assembly 81 includes a second electric push rod 811, a fixed seat 812 and a horizontal plate 813 connected at the upper and lower ends thereof, the fixed seat 812 is connected to the outer surface of the mixing drum assembly 20, and the horizontal plate 813 is connected to the outer surface of the spiral feeder assembly 50; the telescopic rod of the second electric push rod 811 extends and retracts, thereby driving the spiral feeder assembly 50 to slide in the inner cavity of the transition circular tube 3. After the spiral feeder assembly 50 moves upward and extends into the inner cavity of the mixing drum assembly 20, it is convenient to smoothly output the mixed rubber. After the spiral feeder assembly 50 moves downward, it is convenient for the upper telescopic driving mechanism 70 to drive the conical sealing plate 6 to enter the inner cavity of the transition circular tube 3 for sealing.

[0044] The implementation principle of this embodiment is: when in use, fillers such as latex, carbon black and white carbon black are put into the inner cavity of the mixing drum assembly 20, the mixing drum assembly 20 heats the rubber raw material for a period of time, and the stirring mechanism 40 works to stir the rubber raw material. After the rubber raw material is stirred and mixed evenly, the upper telescopic drive mechanism 70 is operated to drive the conical sealing plate 6 to move upward, and the conical sealing plate 6 is separated from the inner cavity of the transition tube 3. The lower telescopic drive mechanism 80 is operated to drive the spiral feeder assembly 50 to move upward and extend into the inner cavity of the mixing drum assembly 20. The spiral feeder assembly 50 works to spirally output the mixed rubber downward, so that the mixed rubber is smoothly output from the inner cavity of the mixing drum assembly 20 to the outside, thereby improving the use effect.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mixing device for a tire rubber composition of modified carbon black, characterized in that: include: A heatable mixing drum assembly (20), wherein the upper opening of the mixing drum assembly (20) is connected to a cover plate (1), and the lower end is connected to a transition tube (3); a stirring mechanism (40) extending into the inner cavity of the mixing drum assembly (20) is provided through the center of the cover plate (1); a spiral feeder assembly (50) is slidably connected to the inner cavity of the transition tube (3); and a conical sealing plate (6) adapted to the transition tube (3) is provided directly above the transition tube (3); It also includes an upper telescopic drive mechanism (70) and a lower telescopic drive mechanism (80), wherein the upper telescopic drive mechanism (70) is connected to the conical sealing plate (6) and is suitable for driving the conical sealing plate (6) to enter the inner cavity of the transition circular tube (3) for sealing, and the lower telescopic drive mechanism (80) is connected to the spiral feeder assembly (50) and is suitable for driving the spiral feeder assembly (50) to move vertically.

2. The mixing device for the tire rubber composition of modified carbon black according to claim 1, characterized in that: The spiral feeder assembly (50) comprises an arc-shaped tube body (51) and a rotating shaft (52) vertically inserted into the inner cavity of the arc-shaped tube body (51), wherein the arc-shaped tube body (51) is slidably connected to the inner cavity of the transition circular tube (3), and a spiral blade (53) is sleevedly connected to the outer edge of the rotating shaft (52), and the upper end of the spiral blade (53) extends to the upper part of the arc-shaped tube body (51), and the outer surface of the arc-shaped tube body (51) is connected to a fixing plate (54), and a lower driving motor (55) for driving the rotating shaft (52) is installed on the fixing plate (54).

3. The mixing device for the tire rubber composition of modified carbon black according to claim 1, characterized in that: The mixing drum assembly (20) comprises a mixing drum body (21) and an annular hollow cavity (22) arranged on the circular wall thereof, an electric heating belt (23) being spirally connected inside the annular hollow cavity (22), two inclined feed pipes (24) being symmetrically connected to the outer edge of the mixing drum body (21), and the openings of the inclined feed pipes (24) being respectively connected to circular plugs (25).

4. The mixing device for the tire rubber composition of modified carbon black according to claim 1, characterized in that: The stirring mechanism (40) comprises a hollow shaft (41) passing through the center of the cover plate (1), the outer edge of the lower end of the hollow shaft (41) is connected to at least two stirring rods (42) in a circular array, and also comprises a rotating driving member (43) for driving the hollow shaft (41) to rotate.

5. The mixing device for the tire rubber composition of modified carbon black according to claim 4, characterized in that: The stirring rod (42) comprises a vertical stirring plate (421) and a plurality of horizontal stirring plates (422); the horizontal stirring plates (422) are arranged at intervals and one end of the horizontal stirring plates (422) is connected to the vertical stirring plate (421), and the other end is connected to the outer edge of the hollow shaft (41); the lower end of the vertical stirring plate (421) is connected to a plurality of inclined stirring plates (423) at intervals; the rotary driving member (43) comprises a driven gear (431) sleevedly connected to the outer edge of the upper end of the hollow shaft (41); the upper plane of the cover plate (1) is connected to an L-shaped mounting seat (432); an upper driving motor (433) is mounted on the L-shaped mounting seat (432); and a driving gear (434) meshingly connected to the driven gear (431) is sleevedly connected to the output shaft of the upper driving motor (433).

6. The mixing device for the tire rubber composition of modified carbon black according to claim 4, characterized in that: The upper telescopic driving mechanism (70) comprises a first U-shaped plate (71), a second U-shaped plate (72) and a driving rod (73) which is inserted into the inner hole of the hollow shaft (41); the first U-shaped plate (71) is connected to the upper plane of the cover plate (1); the second U-shaped plate (72) is connected to the upper plane of the first U-shaped plate (71); the lower end of the driving rod (73) is connected to the conical blocking plate (6); the upper end of the driving rod (73) passes through the first U-shaped plate (71) and then extends into the inner cavity of the second U-shaped plate (72); the upper plane of the second U-shaped plate (72) is connected to a first electric push rod (74); the telescopic rod of the first electric push rod (74) is connected to the upper end of the driving rod (73).

7. The mixing device for the tire rubber composition of modified carbon black according to claim 1, characterized in that: The lower telescopic drive mechanism (80) comprises two symmetrically arranged lower telescopic drive rod assemblies (81), the lower telescopic drive rod assembly (81) comprising a second electric push rod (811), a fixing seat (812) connected at the upper and lower ends thereof, and a horizontal plate (813), the fixing seat (812) being connected to the outer surface of the mixing drum assembly (20), and the horizontal plate (813) being connected to the outer surface of the screw feeder assembly (50).

8. The mixing device for the tire rubber composition of modified carbon black according to claim 1, characterized in that: The outer surface of the mixing drum assembly (20) is connected to a supporting frame (9).

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