A pollution-proof colored tire sidewall extrusion assembly device

Abstract

The present invention provides an anti-pollution colored tire sidewall extrusion combination device, which relates to the technical field of tire manufacturing, and comprises a die head and a first extruder, a second extruder, a third extruder, and a fourth extruder arranged at the input end of the die head, an auxiliary line is arranged at the output end of the die head, and a calendering rubber coating component is arranged at one end of the auxiliary line, and a first flow channel component, a second flow channel component, a third flow channel component, and a fourth flow channel component are arranged in sequence from top to bottom inside the die head, which are respectively connected to the first extruder, the second extruder, the third extruder, and the fourth extruder; the present invention forms an extrusion combination flow channel through a sub-mouth glue flow channel, a sidewall glue flow channel, an isolation glue flow channel, and a color glue flow channel, which can perfectly guide the fourth extruder, the third extruder, the second extruder, and the first extruder to extrude the sub-mouth glue, the sidewall glue, the isolation glue, and the color glue respectively, so as to realize two symmetrical sidewalls, one color and one black, which are extruded simultaneously, and meet the production needs of color sidewalls.

Description

Technical Field

[0001] The invention relates to the technical field of tire manufacturing, in particular to an anti-pollution colored tire sidewall extrusion assembly device. Background Art

[0002] Conventional 120 extruder flow channel required for traditional three-composite extrusion line to produce sidewalls ( Figure 1 ) has one glue inlet and two glue outlets. The plasticized rubber material of the screw extruder is evenly guided through the flow channel to the two glue outlets for use in the pre-mouth mold (the ordinary three-flow glue port pre-mouth mold) and then extruded through the final mold plate to become a qualified sidewall component. This form can cope with the conventional compounding of sidewall and sub-mouth rubber, and can perfectly realize sidewall extrusion.

[0003] However, in the production of colored sidewalls, a composite extrusion line is required to meet the requirements of two symmetrical sidewalls, one colored and one black, extruded simultaneously. The conventional 120 extruder flow channel cannot meet the production requirements of colored sidewalls. Therefore, the present invention proposes an anti-pollution colored tire sidewall extrusion assembly device to solve the problems existing in the prior art. Summary of the invention

[0004] In view of the above problems, the present invention proposes an anti-pollution colored tire sidewall extrusion assembly device, which can realize the simultaneous extrusion of two symmetrical sidewalls, one colored and one black, to meet the production needs of colored sidewalls.

[0005] To achieve the purpose of the present invention, the present invention is implemented by the following technical scheme: an anti-pollution colored tire sidewall extrusion assembly device, comprising a die head and a first extruder, a second extruder, a third extruder, and a fourth extruder arranged at the input end of the die head, an auxiliary line is arranged at the output end of the die head, and a calendering rubber coating component is arranged at one end of the auxiliary line, and a first flow channel component, a second flow channel component, a third flow channel component, and a fourth flow channel component are arranged in sequence from top to bottom inside the die head, which are connected to the first extruder, the second extruder, the third extruder, and the fourth extruder respectively; The first runner component, the second runner component, the third runner component and the fourth runner component are respectively provided with a color glue runner, an isolation glue runner, a sidewall glue runner and a sub-mouth glue runner. The color glue runner is used to extrude the color glue from one side, the isolation glue runner is used to extrude the isolation glue from one side, the sidewall glue runner is used to extrude the sidewall glue and divide it into two, and the sub-mouth glue runner is used to extrude the sub-mouth glue from both sides.

[0006] A further improvement is that the middle position of one end of the first flow channel member is a colored glue inlet, and a colored glue outlet is provided on one side of the other end of the first flow channel member, the colored glue inlet and the colored glue outlet are both connected to the colored glue flow channel, the colored glue inlet is used to connect to the first extruder, and the colored glue outlet is used to connect to the colored glue pre-mouth for discharging.

[0007] A further improvement is that a wedge-shaped choke island is provided inside the color glue outlet, and the wedge-shaped choke island is used to guide the color glue, and first fixing bolts are provided at the four corners inside the first flow channel component.

[0008] A further improvement is that the middle position of one end of the second runner member is an isolation glue inlet, and an isolation glue outlet is provided on one side of the other end of the second runner member, the isolation glue inlet and the isolation glue outlet are both connected to the isolation glue flow channel, the isolation glue inlet is used to connect to the second extruder, and the isolation glue outlet is used to connect to the isolation glue pre-mouth for discharging.

[0009] A further improvement is that a semicircular choke island is provided inside the isolation glue outlet, and the semicircular choke island is used to guide the isolation glue, and second fixing bolts are provided at the four corners inside the second flow channel member.

[0010] A further improvement is that a sidewall rubber inlet is provided at the middle position of one end of the third runner component, and a sidewall rubber outlet is provided at the other end of the third runner component, the sidewall rubber inlet and the sidewall rubber outlet are both connected to the sidewall rubber flow channel, the sidewall rubber inlet is used to connect to the third extruder, and the sidewall rubber outlet is used to connect to the sidewall rubber pre-mouth to divide the sidewall rubber into two, and extrude both sides at the same time.

[0011] A further improvement is that a semicircular choke island is provided inside the sidewall rubber outlet, and the semicircular choke island is used to guide the sidewall rubber, and third fixing bolts are provided at the four corners inside the third flow channel member.

[0012] A further improvement is that a sub-mouth glue inlet is provided at the middle position of one end of the fourth runner component, and the sub-mouth glue inlet is connected with the sub-mouth glue runner, an intermediate partition is provided at the middle position of one end of the fourth runner component away from the sub-mouth glue inlet, and the intermediate partition separates the output end of the sub-mouth glue runner into a sub-mouth glue color sidewall glue outlet and a sub-mouth glue black sidewall glue outlet, the sub-mouth glue inlet is used to connect to the fourth extruder, and the sub-mouth glue color sidewall glue outlet and the sub-mouth glue black sidewall glue outlet are respectively used to connect to the color sidewall pre-mouth mold and the black sidewall pre-mouth mold for discharging materials on both sides.

[0013] A further improvement is that: the inner sides of the rubber outlet of the colored sidewall of the sub-mouth rubber and the rubber outlet of the black sidewall of the sub-mouth rubber are provided with special-shaped flow-blocking islands, and the special-shaped flow-blocking islands are used to guide the sub-mouth rubber, and the four corners inside the fourth flow channel component are provided with fourth fixing bolts.

[0014] A further improvement is that the calendering and coating component includes a double-roll calender and a fifth extruder. The double-roll calender is arranged at one end of the auxiliary line, and the fifth extruder is arranged at one side of the double-roll calender. The fifth extruder is used to extrude the covering film to the double-roll calender to cover the covering film above the colored glue.

[0015] The beneficial effects of the present invention are: 1. The present invention forms an extrusion combined flow channel through the sub-mouth glue flow channel in the fourth flow channel member, the sidewall glue flow channel in the third flow channel member, the isolation glue flow channel in the second flow channel member, and the color glue flow channel in the first flow channel member, which can perfectly guide the fourth extruder, the third extruder, the second extruder, and the first extruder of the four-composite extrusion linkage line to extrude the sub-mouth glue, the sidewall glue, the isolation glue, and the color glue respectively, so as to realize two symmetrical sidewalls, one color and one black, which are extruded at the same time to meet the production needs of color sidewalls.

[0016] 2. The present invention adds an isolation rubber between the color rubber and the sidewall rubber to protect the color rubber, so that the isolation rubber completely wraps the color rubber and cuts off the penetration of the antioxidant in the sidewall rubber into the color rubber. The covering film is extruded through the fifth extruder to the double-roll calender, and the covering film is covered on the top of the color rubber, thereby completely solving the problem of color rubber contamination and discoloration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the prior art; Figure 2 It is a front view of the present invention; Figure 3 is a schematic diagram of a first flow channel component of the present invention; Figure 4 is a schematic diagram of a second flow channel component of the present invention; Figure 5 is a schematic diagram of a third flow channel component of the present invention; Figure 6 is a schematic diagram of a fourth flow channel component of the present invention; Figure 7 It is a schematic diagram of the sidewall extrusion section of the present invention.

[0018] Among them: 1. die head; 2. first extruder; 3. second extruder; 4. third extruder; 5. fourth extruder; 6. auxiliary line; 7. first runner component; 8. second runner component; 9. third runner component; 10. fourth runner component; 11. color glue runner; 12. isolation glue runner; 13. sidewall glue runner; 14. sub-mouth glue runner; 15. color glue inlet; 16. color glue outlet; 17. wedge-shaped flow island; 18. first fixing bolt; 19. isolation glue inlet ; 20. Isolation glue outlet; 21. Semicircular choke island; 22. Second fixing bolt; 23. Sidewall glue inlet; 24. Sidewall glue outlet; 25. Semicircular choke island; 26. Third fixing bolt; 27. Sub-mouth glue inlet; 28. Middle interval; 29. ​​Sub-mouth glue color sidewall glue outlet; 30. Sub-mouth glue black sidewall glue outlet; 31. Special-shaped choke island; 32. Fourth fixing bolt; 33. Double-roll calender; 34. Fifth extruder; 35. Covering film. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention. Embodiment 1

[0020] according to Figure 2 , 3 , 4, 5, 6, 7, this embodiment proposes an anti-pollution color tire sidewall extrusion assembly device, including a die head 1 and a first extruder 2, a second extruder 3, a third extruder 4, and a fourth extruder 5 arranged at the input end of the die head 1, an auxiliary line 6 is arranged at the output end of the die head 1, and a calendering rubber coating component is arranged at one end of the auxiliary line 6, and a first flow channel member 7, a second flow channel member 8, a third flow channel member 9, and a fourth flow channel member 10 are arranged in sequence from top to bottom inside the die head 1, which are connected to the first extruder 2, the second extruder 3, the third extruder 4, and the fourth extruder 5 respectively; The first runner component 7, the second runner component 8, the third runner component 9, and the fourth runner component 10 are respectively provided with a color glue runner 11, an isolation glue runner 12, a sidewall glue runner 13, and a sub-mouth glue runner 14. The color glue runner 11 is used to extrude the color glue from one side, the isolation glue runner 12 is used to extrude the isolation glue from one side, the sidewall glue runner 13 is used to extrude the sidewall glue and is divided into two, and the sub-mouth glue runner 14 is used to extrude the sub-mouth glue from both sides. When in use, the sub-mouth glue runner 14 in the fourth runner component 10, the sidewall glue runner 13 in the third runner component 9, the isolation glue runner 12 in the second runner component 8, and the color glue runner 11 in the first runner component 7 form an extrusion combined runner, which can perfectly guide the fourth extruder 5, the third extruder 4, the second extruder 3, and the first extruder 2 of the four-composite extrusion linkage line to extrude the sub-mouth glue, the sidewall glue, the isolation glue, and the color glue, respectively, to achieve two symmetrical sidewalls, one color and one black, extruded at the same time. Through the 4-channel combination structure required for the production of semi-steel color sidewall tires, four screw extruders of Ф120 / Ф90 / Ф200 / Ф120 are used to feed materials. Through the four-channel combination structure of color glue flow channel 11, isolation glue flow channel 12, sidewall glue flow channel 13 and sub-mouth glue flow channel 14, color glue, isolation glue, sidewall glue and sub-mouth glue are extruded respectively. With the corresponding pre-die shape, the composite extrusion line can realize two symmetrical sidewalls, one color and one black, extruded at the same time.

[0021] The middle position of one end of the first flow channel member 7 is a color glue inlet 15, and a color glue outlet 16 is provided on one side of the other end of the first flow channel member 7. The color glue inlet 15 and the color glue outlet 16 are both connected to the color glue flow channel 11. The color glue inlet 15 is used to connect to the first extruder 2, and the color glue outlet 16 is used to connect to the color glue pre-die for discharging. A wedge-shaped flow blocking island 17 is provided inside the color glue outlet 16, and the wedge-shaped flow blocking island 17 is used to guide the color glue. The first fixing bolts 18 are provided at the four corners inside the first flow channel member 7. The color glue flow channel 11 corresponds to the Ф120 screw extruder; the color glue inlet 15, with a diameter of 180mm, is connected to the Ф120 screw extruder; the color glue outlet 16, with a width of 150mm, is connected to the pre-molded color glue inlet; the wedge-shaped flow-blocking island 17 guides the color glue to ensure uniform discharge; and 4 fixing bolts are used to fix it to the machine head 1.

[0022] The middle position of one end of the second runner component 8 is an isolation glue inlet 19, and an isolation glue outlet 20 is provided on one side of the other end of the second runner component 8. The isolation glue inlet 19 and the isolation glue outlet 20 are both connected to the isolation glue flow channel 12. The isolation glue inlet 19 is used to connect the second extruder 3, and the isolation glue outlet 20 is used to connect the isolation glue pre-mouth for discharging. A semicircular choke island 21 is provided on the inner side of the isolation glue outlet 20, and the semicircular choke island 21 is used to guide the isolation glue, and a second fixing bolt 22 is provided at the four corners inside the second runner component 8. Isolation glue flow channel 12 corresponding to the Ф90 screw; isolation glue inlet 19, with a diameter of 150mm, is connected to the Ф90 screw extruder; isolation glue outlet 20, with a width of 150mm, is connected to the isolation glue inlet of the pre-mouth, the semicircular choke island 21 guides the isolation glue to ensure uniform discharge, and 4 fixing bolts are used to fix it to the machine head 1.

[0023] A sidewall rubber inlet 23 is provided at the middle position of one end of the third runner member 9, and a sidewall rubber outlet 24 is provided at the other end of the third runner member 9. The sidewall rubber inlet 23 and the sidewall rubber outlet 24 are both connected to the sidewall rubber runner 13. The sidewall rubber inlet 23 is used to connect to the third extruder 4, and the sidewall rubber outlet 24 is used to connect to the sidewall rubber pre-mouth to divide the sidewall rubber into two, and extrude both sides at the same time. A semicircular flow blocking island 25 is provided on the inner side of the sidewall rubber outlet 24, and the semicircular flow blocking island 25 is used to guide the sidewall rubber. The third fixing bolts 26 are provided at the four corners inside the third runner member 9. The sidewall rubber flow channel 23 corresponding to the Ф200 screw; the sidewall rubber inlet 23, with a diameter of 280mm, is connected to the Ф200 screw extruder; the sidewall rubber outlet 24, with a width of 500mm, is connected to the sidewall rubber inlet of the pre-mouth mold, and the sidewall rubber is divided into two by the pre-mouth mold, and the left and right sides are extruded simultaneously; the semicircular flow-blocking island 25 guides the sidewall rubber to ensure uniform discharge; and 4 fixing bolts are used to fix it to the machine head 1.

[0024] A sub-mouth glue inlet 27 is provided at the middle position of one end of the fourth runner component 10, and the sub-mouth glue inlet 27 is connected to the sub-mouth glue flow channel 14. An intermediate spacer 28 is provided at the middle position of one end of the fourth runner component 10 away from the sub-mouth glue inlet 27, and the intermediate spacer 28 separates the output end of the sub-mouth glue flow channel 14 into a sub-mouth glue color tire side glue outlet 29 and a sub-mouth glue black tire side glue outlet 30. The sub-mouth glue inlet 27 is used to connect the fourth extruder, and the sub-mouth glue color tire side glue outlet 29 and the sub-mouth glue black tire side glue outlet 30 are used to connect the color tire side pre-mouth mold and the black tire side pre-mouth mold for discharging on both sides. The inner sides of the sub-mouth glue color tire side glue outlet 29 and the sub-mouth glue black tire side glue outlet 30 are both provided with special-shaped flow blocking islands 31, and the special-shaped flow blocking islands 31 are used to guide the sub-mouth glue, and the fourth fixing bolts 32 are provided at the four corners inside the fourth runner component 10. The 120mm screw rod corresponds to the rubber runner 14; the rubber inlet 27 has a diameter of 210mm and is connected to the 120mm screw extruder; the rubber outlet 29 for the color tire sidewall has a width of 125mm and is connected to the rubber inlet of the pre-molded color tire sidewall; the rubber outlet 30 for the black tire sidewall has a width of 125mm and is connected to the rubber inlet of the pre-molded black tire sidewall; the special-shaped flow-blocking island 31 guides the rubber to ensure uniform discharge. Embodiment 2

[0025] according to Figure 2 , 3 , 4, 5, 6, 7, this embodiment proposes an anti-pollution color tire sidewall extrusion assembly device, including a die head 1 and a first extruder 2, a second extruder 3, a third extruder 4, and a fourth extruder 5 arranged at the input end of the die head 1, an auxiliary line 6 is arranged at the output end of the die head 1, and a calendering rubber coating component is arranged at one end of the auxiliary line 6, and a first flow channel member 7, a second flow channel member 8, a third flow channel member 9, and a fourth flow channel member 10 are arranged in sequence from top to bottom inside the die head 1, which are connected to the first extruder 2, the second extruder 3, the third extruder 4, and the fourth extruder 5 respectively; The first runner component 7, the second runner component 8, the third runner component 9, and the fourth runner component 10 are respectively provided with a color glue runner 11, an isolation glue runner 12, a sidewall glue runner 13, and a sub-mouth glue runner 14. The color glue runner 11 is used to extrude the color glue from one side, the isolation glue runner 12 is used to extrude the isolation glue from one side, the sidewall glue runner 13 is used to extrude the sidewall glue and is divided into two, and the sub-mouth glue runner 14 is used to extrude the sub-mouth glue from both sides. When in use, the sub-mouth glue runner 14 in the fourth runner component 10, the sidewall glue runner 13 in the third runner component 9, the isolation glue runner 12 in the second runner component 8, and the color glue runner 11 in the first runner component 7 form an extrusion combined runner, which can perfectly guide the fourth extruder 5, the third extruder 4, the second extruder 3, and the first extruder 2 of the four-composite extrusion linkage line to extrude the sub-mouth glue, the sidewall glue, the isolation glue, and the color glue, respectively, to achieve two symmetrical sidewalls, one color and one black, extruded at the same time. Through the 4-channel combination structure required for the production of semi-steel color sidewall tires, four screw extruders of Ф120 / Ф90 / Ф200 / Ф120 are used to feed materials. Through the four-channel combination structure of color glue flow channel 11, isolation glue flow channel 12, sidewall glue flow channel 13 and sub-mouth glue flow channel 14, color glue, isolation glue, sidewall glue and sub-mouth glue are extruded respectively. With the corresponding pre-die shape, the composite extrusion line can realize two symmetrical sidewalls, one color and one black, extruded at the same time.

[0026] The calendering and coating component includes a double-roll calender 33 and a fifth extruder 34. The double-roll calender 33 is arranged at one end position on the auxiliary line 6, and the fifth extruder 34 is arranged at a side position of the double-roll calender 33. The fifth extruder 34 is used to extrude the covering film 35 to the double-roll calender 33, and cover the covering film 35 above the colored glue. When in use, four flow channels discharge glue respectively and gather it to the color glue pre-die, and finally extrude it through the die plate to reach the auxiliary line 6, so as to meet two symmetrical sidewalls, one colored and one black, extruded at the same time, and then calendered by the double-roll calender 33. In this process, the covering film 35 is extruded to the double-roll calender 33 through the fifth extruder 34, and the covering film 35 is covered on the top of the color glue. At the same time, isolation glue is added between the color glue and the sidewall glue to protect the color glue, so that it completely wraps the color glue and cuts off the penetration of the antioxidant in the sidewall glue into the color glue, thereby completely solving the problem of color glue pollution and discoloration. The covering film 35 and isolation glue on the sidewall are both anti-pollution and anti-diffusion rubbers, which can effectively block the migration of polluting drugs. After the tire is formed in the later stage, it will be polished to form a beautiful color tire.

[0027] The anti-pollution color tire sidewall extrusion assembly device forms an extrusion assembly flow channel through the sub-mouth glue flow channel 14 in the fourth flow channel part 10, the sidewall glue flow channel 13 in the third flow channel part 9, the isolation glue flow channel 12 in the second flow channel part 8, and the color glue flow channel 11 in the first flow channel part 7, which can perfectly guide the fourth extruder 5, the third extruder 4, the second extruder 3, and the first extruder 2 of the four-composite extrusion linkage line to extrude the sub-mouth glue, the sidewall glue, the isolation glue, and the color glue respectively, so as to realize two symmetrical sidewalls, one color and one black, and meet the color sidewall production needs. In addition, the present invention adds isolation glue between the color glue and the sidewall glue to protect the color glue, so that it completely wraps the color glue, cuts off the penetration of the antioxidant in the sidewall glue into the color glue, and extrude the covering film 35 to the double-roll calender 33 through the fifth extruder 34, and covers the covering film 35 above the color glue, thereby completely solving the problem of color glue pollution and discoloration.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pollution-proof colored tire sidewall extrusion assembly device, comprising a die head (1) and a first extruder (2), a second extruder (3), a third extruder (4), and a fourth extruder (5) arranged at an input end of the die head (1), characterized in that: The output end of the die head (1) is provided with an auxiliary line (6), and one end of the auxiliary line (6) is provided with a calendering rubber coating component. The die head (1) is provided with a first flow channel component (7), a second flow channel component (8), a third flow channel component (9), and a fourth flow channel component (10) connected to the first extruder (2), the second extruder (3), the third extruder (4), and the fourth extruder (5) in sequence from top to bottom. The first flow channel member (7), the second flow channel member (8), the third flow channel member (9), and the fourth flow channel member (10) are respectively provided with a color glue flow channel (11), an isolation glue flow channel (12), a sidewall glue flow channel (13), and a sub-end glue flow channel (14). The color glue flow channel (11) is used to extrude the color glue from one side, the isolation glue flow channel (12) is used to extrude the isolation glue from one side, the sidewall glue flow channel (13) is used to extrude the sidewall glue and divide it into two, and the sub-end glue flow channel (14) is used to extrude the sub-end glue from two sides.

2. The anti-pollution colored tire sidewall extrusion assembly device according to claim 1, characterized in that: The middle position of one end of the first flow channel member (7) is a colored glue inlet (15), and one side of the other end of the first flow channel member (7) is provided with a colored glue outlet (16). The colored glue inlet (15) and the colored glue outlet (16) are both connected to the colored glue flow channel (11). The colored glue inlet (15) is used to connect to the first extruder (2), and the colored glue outlet (16) is used to connect to the colored glue pre-die for discharging.

3. The anti-pollution colored tire sidewall extrusion assembly device according to claim 2, characterized in that: A wedge-shaped flow-blocking island (17) is provided inside the colored glue outlet (16), and the wedge-shaped flow-blocking island (17) is used to guide the colored glue, and first fixing bolts (18) are provided at the four corners inside the first flow channel component (7).

4. The pollution-proof colored tire sidewall extrusion assembly device according to claim 1, characterized in that: An isolation glue inlet (19) is located in the middle of one end of the second flow channel member (8), and an isolation glue outlet (20) is provided on one side of the other end of the second flow channel member (8). The isolation glue inlet (19) and the isolation glue outlet (20) are both connected to the isolation glue flow channel (12). The isolation glue inlet (19) is used to connect to the second extruder (3), and the isolation glue outlet (20) is used to connect to the isolation glue pre-die for discharging.

5. The pollution-proof colored tire sidewall extrusion assembly device according to claim 4, characterized in that: A semicircular flow-blocking island (21) is provided on the inner side of the isolation glue outlet (20), and the semicircular flow-blocking island (21) is used to guide the isolation glue, and second fixing bolts (22) are provided at the four corners inside the second flow channel component (8).

6. The anti-pollution colored tire sidewall extrusion assembly device according to claim 1, characterized in that: A sidewall rubber inlet (23) is provided at the middle position of one end of the third flow channel member (9), and a sidewall rubber outlet (24) is provided at the other end of the third flow channel member (9). The sidewall rubber inlet (23) and the sidewall rubber outlet (24) are both connected to the sidewall rubber flow channel (13). The sidewall rubber inlet (23) is used to connect to the third extruder (4), and the sidewall rubber outlet (24) is used to connect to the sidewall rubber pre-mouth to divide the sidewall rubber into two parts and extrude both sides simultaneously.

7. The pollution-proof colored tire sidewall extrusion assembly device according to claim 6, characterized in that: A semicircular flow-blocking island (25) is provided on the inner side of the tire side rubber outlet (24), and the semicircular flow-blocking island (25) is used to guide the tire side rubber. Third fixing bolts (26) are provided at the four corners inside the third flow channel member (9).

8. The pollution-proof colored tire sidewall extrusion assembly device according to claim 1, characterized in that: A rubber inlet (27) is provided at a middle position of one end of the fourth flow channel member (10), and the rubber inlet (27) is communicated with the rubber flow channel (14). An intermediate spacer (28) is provided at a middle position of one end of the fourth flow channel member (10) away from the rubber inlet (27), and the intermediate spacer (28) separates the output end of the rubber flow channel (14) into a rubber color sidewall outlet (29) and a rubber black sidewall outlet (30). The rubber inlet (27) is used to connect to a fourth extruder, and the rubber color sidewall outlet (29) and the rubber black sidewall outlet (30) are used to connect to a color sidewall pre-mouth mold and a black sidewall pre-mouth mold, respectively, for discharging materials on both sides.

9. The pollution-proof colored tire sidewall extrusion assembly device according to claim 8, characterized in that: A special-shaped flow-blocking island (31) is provided inside the rubber sidewall outlet (29) of the rubber color and the rubber sidewall outlet (30), and the special-shaped flow-blocking island (31) is used to guide the rubber sidewall, and fourth fixing bolts (32) are provided at the four corners inside the fourth flow channel component (10).

10. The pollution-proof colored tire sidewall extrusion assembly device according to any one of claims 1 to 9, characterized in that: The calendering and coating component comprises a double-roll calender (33) and a fifth extruder (34). The double-roll calender (33) is arranged at one end of the auxiliary line (6), and the fifth extruder (34) is arranged at one side of the double-roll calender (33). The fifth extruder (34) is used to extrude a covering film (35) to the double-roll calender (33) to cover the covering film (35) above the color glue.

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