Composite tire sidewall multi-lobed extrusion die

Abstract

The utility model provides a kind of composite tire side multiple embedded block extrusion die plate, including mouth type upper plate and mouth type lower plate, mouth type upper plate and mouth type lower plate are detachably connected, a plurality of parallel arrangement's upper movable part is set on mouth type upper plate, and there is reserved gap between multiple upper movable parts and mouth type upper plate to form multiple corresponding sub-port rubber passage;Mouth type lower plate is provided with multiple parallel arrangement's lower movable part, and there is reserved gap between lower movable part and mouth type lower plate or different lower movable parts to form multiple corresponding rubber passage;Lower movable part includes at least one movable assembly, movable assembly includes inner embedded active unit and outer embedded active unit, outer embedded active unit is set to the outside of inner embedded active unit, and the rubber passage of different and mutual separation is independently formed by two. The utility model solves the problem of uneven bonding caused by the shrinkage difference of multiple rubber materials, can realize the bubble-free bonding of tire side rubber, and improve the production yield and product consistency of colored tire side.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing technology, and in particular to a composite tire sidewall multi-block extrusion die plate. Background Technology

[0002] With the continuous development of the automotive industry and the increasing aesthetic demands of consumers, car exterior designs are becoming increasingly diversified, and personalized and fashionable elements are gradually becoming important factors in vehicle selection. Under this trend, traditional black tires, due to their monotonous appearance and lack of visual impact, can no longer meet consumers' pursuit of overall vehicle aesthetics. Therefore, colored sidewall tires have emerged, significantly improving the tire's visual recognition and the overall aesthetic harmony of the vehicle by incorporating white, yellow, green, or other colored rubber layers on the tire sidewall, becoming an important feature of high-end and personalized models.

[0003] Currently, colored sidewall tires are typically manufactured using a composite extrusion process. During the extrusion of the sidewall components, black sidewall rubber, colored sidewall rubber, and bead rubber are simultaneously extruded and formed. To prevent contamination or damage to the colored rubber layer during subsequent tire molding and vulcanization, which could affect its appearance quality, a layer of black cover rubber is usually applied to the surface of the colored rubber layer after extrusion and before the cooling process. The sidewall component is then rolled up and stored. Subsequent tire molding and vulcanization processes are the same as for conventional black tires. After vulcanization, the black cover rubber on the surface of the colored rubber layer is removed by mechanical grinding or other methods, exposing the colored sidewall and completing the manufacturing of the colored sidewall tire.

[0004] However, existing publicly available technologies still have some technical problems in the process of applying black protective rubber to colored tire sidewalls, which restricts the improvement of product quality and production efficiency:

[0005] First, the differences in physical properties (such as modulus, hardness, and coefficient of thermal expansion) among the three types of rubber compounds—black sidewall rubber, colored sidewall rubber, and bead rubber—lead to inconsistent shrinkage rates during the extrusion and cooling process. This inconsistent shrinkage can easily create steps or uneven transitions between the colored sidewall rubber and adjacent rubber layers (black sidewall rubber or bead rubber). When black cover rubber is bonded to this uneven surface, air is easily trapped at the interface, forming bubbles or missing rubber, severely affecting the appearance quality and structural uniformity of the subsequent tire.

[0006] Secondly, colored sidewall tires are mostly used in high-performance or luxury vehicles and often employ a low aspect ratio design, resulting in a lower sidewall height and narrower width. To ensure that the colored rubber layer has sufficient resistance to aging such as ultraviolet rays and ozone during use, the black cover rubber needs to cover more than 2 / 3 of the sidewall height, or even nearly the entire sidewall. In such a narrow and large bonding area, using traditional multi-layered rollers to apply the black cover rubber makes it difficult to achieve uniform and sufficient air release and compaction, leading to a particularly prominent problem of air bubble residue during the bonding process, which significantly affects the yield rate.

[0007] In view of this, the present utility model is proposed. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of the aforementioned technologies by providing a composite tire sidewall multi-block extrusion die plate. Through the structural design of each colloid channel, it can solve the problem of uneven bonding caused by the shrinkage difference of multiple colloids and achieve bubble-free bonding of black protective colloid under narrow sidewalls and large coverage areas, thereby improving the production yield and product consistency of colored sidewall tires.

[0009] The technical solution of the composite tire sidewall multi-block extrusion die plate provided by this utility model is as follows:

[0010] A composite tire sidewall multi-block extrusion die plate includes an upper die plate and a lower die plate. The upper die plate and the lower die plate are detachably connected. The upper die plate is provided with multiple upper movable parts arranged in parallel. There are reserved gaps between the multiple upper movable parts and the upper die plate to form multiple corresponding sub-die rubber channels.

[0011] The lower plate of the mouth is provided with multiple lower movable parts arranged in parallel. There are reserved gaps between the lower movable parts and the lower plate of the mouth, or between different lower movable parts, to form multiple corresponding colloid channels. The lower movable parts include at least one movable component, which includes an inner embedded movable unit and an outer embedded movable unit. The outer embedded movable unit is located outside the inner embedded movable unit, and the two independently form different and separate colloid channels.

[0012] Furthermore, the upper movable component includes a first upper insert and a second upper insert, which are arranged side by side. The reserved gap between the first upper insert and the upper die plate forms a first sub-die adhesive channel, and the reserved gap between the second upper insert and the upper die plate forms a second sub-die adhesive channel.

[0013] Furthermore, the outlet cross-sections of the first and second sub-adhesive channels are at right angles.

[0014] Furthermore, both the inner and outer fitted movable units have irregular arc-shaped slots on their tops. The top opening of the irregular arc-shaped slots is sealed and enclosed by the upper movable part to form a first colloid channel. The outer fitted movable unit has a second colloid channel with a rectangular cross-section. The bottoms of the inner and outer fitted movable units together with the lower plate of the orifice form a third colloid channel.

[0015] Furthermore, both the inner and outer interlocking active units have rectangular slots at their bottoms, and the bottom of the slot openings is sealed by a lower plate to form a cuboid-shaped third colloidal channel.

[0016] Furthermore, the upper and lower lip plates form an asymmetrical lip plate structure.

[0017] Furthermore, the first colloidal channel includes a first colloidal channel one and a first colloidal channel two. The top groove opening of the irregular arc-shaped slot on the movable component is blocked by the second upper insert to form the first colloidal channel one.

[0018] Furthermore, the lower movable component also includes a first lower insert, the top of which is provided with a curved groove, the upper part of which is connected to the first upper insert, and the top opening of the curved groove is blocked by the first upper insert to form the second colloid channel.

[0019] Furthermore, the first and second colloid channels are extruded to form the colloid region, the first colloid channel one and the first colloid channel two are extruded to form the sidewall colloid region, the second colloid channel is extruded to form the colored colloid region, and the third colloid channel is extruded to form the cover colloid region.

[0020] Furthermore, the extrusion die plate is connected to a pre-die, which has an asymmetrical structure and is provided with several pre-die colloid channels that correspond to and are connected to the first sub-die adhesive channel, the second sub-die adhesive channel, the first colloid channel, the second colloid channel, and the third colloid channel provided on the extrusion die plate.

[0021] Compared with the prior art, the above-mentioned technical solution proposed by this utility model has the following beneficial technical effects:

[0022] (1) By using the multi-block extrusion die plate proposed in this application, and in conjunction with the conventional pre-die, colored tire sidewalls with cover film can be directly extruded. The interface and size of colored rubber, black cover rubber, sidewall rubber and bead rubber can all be controlled by the die plate, which can realize the production of extrusion die plates for full-size colored tire sidewalls, and solves the problem of non-universal use of tire sidewall pre-die. Through the structural design of each colloid channel, there is no need to add a film-applying device, and the black protective rubber can be bonded without bubbles under narrow tire sidewalls and large coverage areas, thereby improving the production yield and product consistency of colored tire sidewalls. It not only saves equipment modification costs, but also reduces the labor intensity of workers, improves production efficiency, and reduces the generation of process waste.

[0023] (2) The extrusion die plate proposed in this utility model controls the interface and size of the colored tire side. The control of each interface area and corresponding size is more precise. In the actual production process, by using the extrusion die plate in this application and in conjunction with the general pre-die, the full coverage production of the colored tire side specifications can be achieved, reducing the replacement and production preparation costs. Attached Figure Description

[0024] Figure 1 This is an overall schematic diagram of the extrusion die plate in this utility model;

[0025] Figure 2 This is a front view schematic diagram of the extrusion die plate in this utility model;

[0026] Figure 3 This is a rear view schematic diagram of the extrusion die plate in this utility model;

[0027] Figure 4 This is a schematic diagram of the first upper insert in the extrusion die plate of this utility model;

[0028] Figure 5 This is a schematic diagram of the second upper insert in the extrusion die plate of this utility model;

[0029] Figure 6 This is a schematic diagram of the first lower insert in the extrusion die plate of this utility model;

[0030] Figure 7 This is a schematic diagram of the interlocking movable unit inside the extrusion die plate in this utility model;

[0031] Figure 8 This is a schematic diagram of the externally fitted movable unit of the extrusion die plate in this utility model;

[0032] Figure 9 This is a schematic diagram of the pre-die corresponding to the extrusion die plate in this utility model;

[0033] Figure 10 This is a rear view schematic diagram of the pre-form corresponding to the extrusion die plate in this utility model;

[0034] Figure 11 This is a schematic diagram of the structure of the colored sidewall of the composite tire formed in this utility model.

[0035] Marked in the image:

[0036] 1. Upper bead plate; 2. Upper movable component; 21. First upper insert; 22. Second upper insert; 23. First bead glue channel; 24. Second bead glue channel; 3. Lower bead plate; 4. Lower movable component; 41. First lower insert; 42. Movable assembly; 421. Inner fitting movable unit; 422. Outer fitting movable unit; 43. First glue channel; 431. First glue channel one; 432. First glue channel two; 44. Second glue channel; 45. Third glue channel; 5. Colored tire sidewall; 51. Sidewall glue area; 52. Bead glue area; 53. Colored glue area; 54. Cover glue area; 6. Pre-bead; 61. Bead glue channel one; 62. Bead glue channel two; 63. Sidewall glue channel one; 64. Sidewall glue channel two; 65. Colored glue channel; 66. Cover glue channel. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0038] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] As attached Figure 1-8As shown, a composite tire sidewall multi-block extrusion die plate includes an upper die plate 1 and a lower die plate 3. The upper die plate 1 and the lower die plate 3 are detachably connected. The upper die plate 1 is provided with a plurality of upper movable members 2 arranged in parallel. There are reserved gaps between the plurality of upper movable members 2 and the upper die plate 1 to form a plurality of corresponding sub-die rubber channels. The lower die plate 3 is provided with a plurality of lower movable members 4 arranged in parallel. There are reserved gaps between the lower movable members 4 and the lower die plate 3 or between different lower movable members 4 to form a plurality of corresponding rubber channels. The lower movable members 4 include at least one movable component 42. The movable component 42 includes an inner embedded movable unit 421 and an outer embedded movable unit 422. The outer embedded movable unit 422 is disposed outside the inner embedded movable unit 421. The two independently form different and separate rubber channels.

[0041] Obviously, in the multi-block extrusion die plate of this application, the upper die plate 1 and the lower die plate 3 are detachably connected, which facilitates the installation, disassembly, and maintenance of the die, reducing maintenance costs and replacement cycles. The reserved gap between the upper movable part 2 and the upper die plate 1 forms a sub-die rubber channel, and the reserved gap between the lower movable part 4 and the lower die plate 3, or between different lower movable parts 4, forms a colloid channel. This multi-channel design can extrude multiple different types of rubber materials simultaneously, meeting the performance requirements of different parts of the tire sidewall. The movable component 42 in the lower movable part 4 includes an inner embedded movable unit 421 and an outer embedded movable unit 422, which independently form different and separate colloid channels, enabling more precise control of the distribution and flow of the rubber material, and improving the quality and performance of the tire sidewall.

[0042] As attached Figure 1-2 As shown, the upper die plate 1 and the lower die plate 3 are generally rectangular, and the upper die plate 1 and the lower die plate 3 are provided with mounting grooves on their ends, which are used to install and connect with the tire production extrusion equipment.

[0043] As an embodiment of this application, the upper movable member 2 includes a first upper insert 21 and a second upper insert 22. The first upper insert 21 and the second upper insert 22 are arranged side by side, and the reserved gap between the first upper insert 21 and the mouth-shaped upper plate 1 forms a first sub-mouth glue channel 23, and the reserved gap between the second upper insert 22 and the mouth-shaped upper plate 1 forms a second sub-mouth glue channel 24.

[0044] In the structural design of the upper movable part 2, as shown in the attached... Figure 4-5 Specifically, it includes a first upper insert 21 and a second upper insert 22, which are arranged side by side and respectively form a first bead rubber channel 23 and a second bead rubber channel 24, further refining the bead rubber extrusion channel, which helps to more accurately control the shape and size of the bead rubber and improve the fitting accuracy between the bead rubber and other tire components.

[0045] Furthermore, both the first sub-adhesive channel 23 and the second sub-adhesive channel 24 are located near the centerline of the upper movable part 2, and are arranged sequentially in the same direction. Optionally, inserts can be built into both the first sub-adhesive channel 23 and the second sub-adhesive channel 24 to change the flow velocity and / or outflow shape of the fluid within the sub-adhesive channel.

[0046] For details, see attached. Figure 1-2 As shown in Figures 4-5, the outlet cross-sections of the first bead sealant channel 23 and the second bead sealant channel 24 are at right angles. This right-angled design allows the bead sealant to adhere more easily to other tire components after extrusion, improving the ease and stability of bead sealant installation and also helping to ensure the sealing performance of the bead sealant area 52.

[0047] As an embodiment of this application, the top of both the inner fitting movable unit 421 and the outer fitting movable unit 422 is provided with an irregular arc-shaped groove. The top end of the irregular arc-shaped groove is blocked and enclosed by the upper movable member 2 to form a first colloid channel 43. The outer fitting movable unit 422 is provided with a second colloid channel 44 with a rectangular cross-section. The bottom of the inner fitting movable unit 421 and the outer fitting movable unit 422 together with the lower plate 3 of the orifice form a third colloid channel 45.

[0048] The channel structure design of the first colloidal channel 43, the second colloidal channel 44, and the third colloidal channel 45 can enable the simultaneous extrusion of various rubber materials with different shapes and properties, meeting the functional requirements of different areas of the tire sidewall. For example, irregular arc-shaped grooves may help form specific patterns or cushioning structures, improving the aesthetics and comfort of the tire.

[0049] Understandably, the specific shape of the irregular arc-shaped groove is determined by the shape and structure of the tire sidewall to be formed. Those skilled in the art can choose to design it according to actual needs, as long as it can meet the actual structural requirements of the tire sidewall.

[0050] It should be noted that the first colloidal channel 43 is formed by sealing the top opening of the irregular arc-shaped groove. The first colloidal channel 43 includes a first colloidal channel 431 and a first colloidal channel 432, both of which are sidewall adhesive channels.

[0051] As an embodiment of this application, the bottom of the inner fitting active unit 421 and the outer fitting active unit 422 are provided with rectangular slots, and the bottom of the slot opening is blocked by the lower plate 3 to form a cuboid third colloidal channel 45.

[0052] Further details are attached. Figure 7As shown, the embedded active unit 421 includes an embedded block with trapezoidal protruding end blocks at both ends for mounting the embedded block. The embedded block has protruding triangular-shaped oblique protrusions. The thickness of the middle part of the embedded block is less than that at both ends, and the bottom of the middle part is lower than the two ends, forming a third adhesive channel 45 at the bottom. The third adhesive channel 45 is a black cover adhesive channel 66. An irregular arc-shaped groove is provided on the top side of the embedded block, serving as part of the tire sidewall adhesive channel.

[0053] As attached Figure 8 As shown, the outer fitting active unit 422 includes an outer insert block, the two ends of which are trapezoidal protruding end blocks for mounting the outer insert block. The top of the middle part of the outer insert block is lower than the two ends of the inner insert block to form a groove with an end opening, which together with the similar position of the inner insert block constitutes the third colloidal channel 45.

[0054] The outer insert has a rectangular block and a slot channel with a rectangular cross-section formed by the rectangular block and the outer insert body, which constitutes the second colloid channel 44. The second colloid channel 44 is a colored adhesive channel 65.

[0055] The outer insert has a protruding, triangular-shaped oblique protrusion, and the top of the outer insert has an irregular opening, which cooperates with the irregular arc-shaped groove on the top side of the inner insert to form a first colloidal channel 431.

[0056] Obviously, based on the different structural configurations of the upper movable part 2 and the lower movable part 4 on the upper lip plate 1 and the lower lip plate 3, the upper lip plate 1 and the lower lip plate 3 constitute an asymmetrical lip plate body.

[0057] Modern high-performance tires often employ asymmetrical tread / sidewall structures to optimize performance such as grip and drainage. The asymmetrical design of the die plate in this invention can precisely match such sidewall structures to achieve accurate co-extrusion molding. On the other hand, it can customize the distribution of rubber channels according to the different functional requirements of the left and right sides (such as one side emphasizing wear resistance and the other side emphasizing flexibility), thereby obtaining tire products with asymmetrical structures.

[0058] Furthermore, the first colloidal channel 43 includes a first colloidal channel 431 and a second colloidal channel 432. The top opening of the irregular arc-shaped groove on the movable component 42 is blocked by the second upper insert 22 to form the first colloidal channel 431.

[0059] As an embodiment of this application, the lower movable member 4 also includes a first lower insert 41. The top of the first lower insert 41 is provided with a curved groove. The upper part of the first lower insert 41 is connected to the first upper insert 21. The top opening of the curved groove is blocked by the bottom surface of the first upper insert 21 to form a first colloidal channel 432.

[0060] By adding a second first colloid channel 432 to the original first colloid channel 431, sidewall rubber can be formed through different paths, achieving more complex sidewall structures (such as double-layer sidewall rubber, reinforcing rib structure, etc.); the curved groove better matches the curvature of the outer surface of the tire sidewall, allowing the extruded rubber to transition naturally and reducing tensile deformation and surface defects.

[0061] It should be noted that the first caulking rubber channel 23 and the second caulking rubber channel 24 are extruded to form the caulking rubber area 52, the first colloid channel 1 431 and the first colloid channel 2 432 are extruded to form the sidewall rubber area 51, the second colloid channel 44 is extruded to form the colored rubber area 53, and the third colloid channel 45 is extruded to form the covering rubber area 54.

[0062] For example, the cover rubber area 54 is black cover rubber. The third adhesive channel 45 for extruding the cover rubber area 54 and the second adhesive channel 44 for extruding the colored rubber area 53 are made so as not to interfere with each other by the inner fitting active unit 421 and the outer fitting active unit 422, thereby extruding a four-composite colored tire sidewall 5 composed of the bead rubber area 52, the sidewall rubber area 51, the colored rubber area 53 and the cover rubber area 54.

[0063] Furthermore, a pre-drill 6 can be connected to the multi-block extrusion die plate of the composite tire sidewall described above. The pre-drill 6 has an asymmetrical structure and is provided with a number of pre-drilled adhesive channels that correspond to and are connected to the first sub-adhesive channel 23, the second sub-adhesive channel 24, the first adhesive channel 43, the second adhesive channel 44, and the third adhesive channel 45 provided on the extrusion die plate.

[0064] In detail, the first sub-die channel 23 on the extrusion die plate corresponds to and connects to sub-die channel 61 on the pre-die 6, and the second sub-die channel 24 on the extrusion die plate corresponds to and connects to sub-die channel 62 on the pre-die 6. (See attached image) Figure 9-10 As shown, the transverse cross-sections of both the first and second adhesive channels 61 and 62 are trapezoidal, and the cross-sectional area or channel space gradually decreases along the flow direction of the fluid, exhibiting a converging design. This converging structural design guides the smooth flow of the adhesive fluid, reduces dead zones and fluid stagnation, and achieves pressure accumulation and uniform extrusion.

[0065] The first colloid channel 431 on the extrusion die plate is connected to the first sidewall colloid channel 63 on the pre-die 6, and the second colloid channel 432 is connected to the second sidewall colloid channel 64 on the pre-die 6. The first sidewall colloid channel 63 and the second sidewall colloid channel 64 on the pre-die 6 have rectangular cross sections.

[0066] The second colloid channel 44 (extrusion colored glue area 53) on the extrusion die plate is connected to the colored glue channel 65 on the pre-die 6, and the cross-section of the colored glue channel 65 is rectangular.

[0067] The third colloid channel 45 (extrusion cover adhesive area 54) on the extrusion die plate corresponds to and connects to the cover adhesive channel 66 on the pre-die 6. The cover adhesive channel 66 has an inclined structure design, with a flared design from the inclined lower inlet to the inclined upper outlet along the colloid flow direction, and the cross-section of the cover adhesive channel 66 can be either rectangular or quadrilateral. Preferably, the cross-section of the cover adhesive channel 66 is rectangular, which can avoid material stagnation and accumulation during the colloid flow process.

[0068] Through the above structural design, both the pre-die 6 and the extrusion die plate are asymmetrical structures with each channel corresponding to the other, ensuring that the rubber material is distributed along the target path before entering the final molding area, reducing flow disturbances, stagnation or deviation.

[0069] Compared with the prior art, the above embodiments of this utility model have the following beneficial technical effects:

[0070] (1) By using the multi-block extrusion die plate proposed in this application, and in conjunction with the conventional general pre-die, colored tire sidewalls with cover film can be directly extruded. The interface and size of colored rubber, black cover rubber, sidewall rubber and bead rubber can all be controlled by the die plate. It can realize the production of full-size colored tire sidewalls 5 extrusion die plates, which solves the problem of non-universality of using tire sidewall pre-die alone. There is no need to add a film pasting device. It can realize the bubble-free bonding of black protective rubber under narrow tire sidewalls and large coverage area, thereby improving the production yield and product consistency of colored tire sidewalls. It not only saves equipment modification costs, but also reduces the labor intensity of workers, improves production efficiency, and reduces the generation of process waste.

[0071] (2) The extrusion die plate proposed in this utility model controls the interface and size of the colored tire side 5. The control of each interface area and corresponding size is more precise. In the actual production process, by using the extrusion die plate used in this application and in conjunction with the general pre-die, the full coverage production of the colored tire side 5 specification can be achieved, reducing the replacement and production preparation costs.

[0072] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A composite tire sidewall multi-block extrusion die plate, comprising an upper die plate and a lower die plate, wherein the upper die plate and the lower die plate are detachably connected, characterized in that: The upper plate of the mouth is provided with a plurality of upper movable parts arranged in parallel, and there are reserved gaps between the plurality of upper movable parts and the upper plate of the mouth to form a plurality of corresponding sub-mouth glue channels; The lower plate of the mouth is provided with a plurality of lower movable parts arranged in parallel. There are reserved gaps between the lower movable parts and the lower plate of the mouth, or between different lower movable parts, to form a plurality of corresponding colloid channels. The lower movable parts include at least one movable component. The movable component includes an inner embedded movable unit and an outer embedded movable unit. The outer embedded movable unit is disposed outside the inner embedded movable unit. The two independently form different and separate colloid channels.

2. The composite tire sidewall multi-block extrusion die plate according to claim 1, characterized in that, The upper movable component includes a first upper insert and a second upper insert, which are arranged side by side. The reserved gap between the first upper insert and the upper lip plate forms a first sub-lip glue channel, and the reserved gap between the second upper insert and the upper lip plate forms a second sub-lip glue channel.

3. The composite tire sidewall multi-block extrusion die plate according to claim 2, characterized in that, The outlet cross-sections of the first and second sub-adhesive channels are at right angles.

4. The composite tire sidewall multi-block extrusion die plate according to claim 2, characterized in that, Both the inner and outer fitting movable units have irregular arc-shaped slots at their tops. The top opening of the irregular arc-shaped slots is sealed and enclosed by the upper movable component to form a first colloid channel. The outer fitting movable unit has a second colloid channel with a rectangular cross-section. The bottoms of the inner and outer fitting movable units, together with the lower orifice plate, form a third colloid channel.

5. A composite tire sidewall multi-block extrusion die plate according to claim 4, characterized in that, Both the inner and outer interlocking movable units have rectangular slots at their bottoms. The bottom of the slot opening is sealed by the lower plate of the opening, forming a cuboid-shaped third colloidal channel.

6. A composite tire sidewall multi-block extrusion die plate according to any one of claims 1-5, characterized in that, The upper lip plate and the lower lip plate form an asymmetrical lip plate structure.

7. A composite tire sidewall multi-block extrusion die plate according to claim 6, characterized in that, The first colloidal channel includes a first colloidal channel one and a first colloidal channel two. The top opening of the irregular arc-shaped groove on the movable component is blocked by the second upper insert to form the first colloidal channel one.

8. A composite tire sidewall multi-block extrusion die plate according to claim 7, characterized in that, The lower movable component also includes a first lower insert, the top of which is provided with a curved groove. The upper part of the first lower insert is connected to the first upper insert, and the top opening of the curved groove is blocked by the first upper insert to form the first colloidal channel two.

9. A composite tire sidewall multi-block extrusion die plate according to claim 6, characterized in that, The first and second adhesive channels are extruded to form an adhesive area, the first adhesive channel one and the first adhesive channel two are extruded to form a sidewall adhesive area, the second adhesive channel is extruded to form a colored adhesive area, and the third adhesive channel is extruded to form a cover adhesive area.

10. A composite tire sidewall multi-block extrusion die plate according to claim 9, characterized in that, The extrusion die plate is connected to a pre-die, which has an asymmetrical structure and is provided with a plurality of pre-die colloid channels that correspond to and are connected to the first sub-die glue channel, the second sub-die glue channel, the first colloid channel, the second colloid channel, and the third colloid channel provided on the extrusion die plate.

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