A steel reed positioning device and calendering process applied to tire belt calendering

Abstract

The application belongs to the technical field of tire manufacturing process equipment, and discloses a steel reed positioning device applied to tire belt layer calendering, which comprises a steel reed main body, a reed seat adjusting mechanism and a front tension stabilizing unit, the steel reed main body is composed of an upper reed beam, a lower reed beam and a plurality of equidistantly arranged reed teeth, adopts a one-reed-one-tooth arrangement structure, a reed gap for passing through a single steel wire cord is formed between adjacent reed teeth, an arc-shaped guiding chamfer is arranged at the inlet end of the reed tooth, and the reed tooth is densely arranged at the edge of the steel reed main body; the reed seat adjusting mechanism is fixedly connected with the steel reed main body, and the reed seat adjusting mechanism comprises a mounting support structure with three adjusting dimensions of horizontal, longitudinal and vertical directions; the special steel reed structure with one reed and one tooth is adopted, combined with high-precision reed gap processing and a three-dimensional calibration mechanism, the cord spacing deviation can be controlled within ±0.03 mm, and the spacing deviation and arrangement disorder problems caused by the wear of the traditional warping roller are completely solved.

Description

Technical Field

[0001] This invention belongs to the field of tire manufacturing process equipment technology, specifically a steel reed positioning device and calendering process applied to tire belt layer calendering. Background Technology

[0002] The tire belt layer is a key load-bearing structural component of radial tires. The accuracy of its cord arrangement and the uniformity of its rubber layer directly determine the tire's structural strength, high-speed performance, and service life.

[0003] Traditional steel cord calendering for belt layers typically employs a warping roller + pressure roller winding process, which has several drawbacks in long-term production: First, the grooves of the warping roller are prone to wear, leading to increased deviations in cord spacing and disordered arrangement after prolonged use, failing to meet the production requirements of high-precision belt layers. Second, during the winding process, steel cords are prone to skipping, overlapping, and twisting, causing uneven density in the belt layer and affecting the overall uniformity of tire stress. Third, the high frictional resistance between the cord and the warping roller grooves easily scratches and wears the coating on the cord surface, reducing the adhesion strength between the steel wire and rubber and creating a risk of delamination. Fourth, the cord is prone to shaking and tension fluctuations during calendering, resulting in uneven rubber layer thickness and internal air bubbles, affecting the forming quality of the belt layer.

[0004] In existing technologies, reed structures are mostly used in the weaving process of fiber cord fabrics, serving only as warp positioning and assisting in weft insertion. They are not specifically adapted to the calendering process of non-weft steel cord fabrics, and cannot solve the core technical challenges of precise cord positioning, low-friction guidance, and stable tension control during the calendering of belt layers. Therefore, developing a dedicated reed positioning device and supporting process adapted to tire belt layer calendering is crucial for improving the production quality and stability of tire belt layers. Summary of the Invention

[0005] The purpose of this invention is to provide a steel reed positioning device and calendering process for tire belt layer calendering, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a steel reed positioning device applied to tire belt lamination, comprising a steel reed body, a reed seat adjustment mechanism, and a front tension stabilizing unit. The steel reed body consists of an upper reed beam, a lower reed beam, and several equidistantly arranged reed teeth, adopting a one-reed-one-tooth arrangement structure. Adjacent reed teeth form a reed gap for a single steel cord to pass through. The entrance end of the reed teeth is provided with an arc-shaped guide chamfer. The reed teeth are densely arranged at the edge of the steel reed body. The reed seat adjustment mechanism is fixedly connected to the main body of the steel reed, and the reed seat adjustment mechanism includes a mounting bracket structure with three adjustment dimensions: horizontal, vertical, and longitudinal. The pre-tension stabilizing unit is located on the feeding side of the reed body and is equipped with an independent tension adjustment component corresponding to each individual steel wire cord.

[0007] Preferably, the reed teeth are made of high-carbon chromium stainless steel with hard chrome plating and a working surface roughness Ra≤0.4μm; the radius of the arc-shaped guide chamfer at the inlet end of the reed teeth is R0.3~R0.5mm, and the dimensional accuracy of the reed gap is ±0.02mm.

[0008] Preferably, the thickness of the reed teeth is 0.2 to 2.0 mm, and the effective working width of the steel reed body is 40 to 80 mm larger than the width of the belt layer to be processed.

[0009] Preferably, the reed seat adjustment mechanism is a three-dimensional adjustable reed seat mounting bracket, and the steel reed body is fixed at 200-500mm in front of the feed inlet of the calender through the three-dimensional adjustable reed seat mounting bracket; after calibration, the parallelism between the steel reed body and the calender roll is ≤0.05mm / m, and the incident angle between the steel wire cord and the steel reed body is 90°±0.3°.

[0010] Preferably, it further includes a tension adjusting roller group, which is disposed between the pre-tension stabilizing unit and the reed body; the pre-tension stabilizing unit cooperates with the tension adjusting roller group to stably control the tension of a single steel wire cord at 5-15N, with a tension fluctuation range ≤±5%.

[0011] A calendering process for tire belt lamination includes the following steps: S1. Steel cord opening and tension pretreatment: The steel cord is opened from the spindle frame and the tension is evenly adjusted by the pre-tension stabilization unit and tension adjustment roller group so that the tension of a single cord is stabilized within the set range. S2. Reed threading and positioning calibration: Thread the steel wire cord into the corresponding reed gap of the main body of the reed according to the rule of one reed per gap. The parallelism and centering of the main body of the reed are calibrated by the reed seat adjustment mechanism so that the cord forms a regular cord bundle with equal spacing and parallelity. S3, Calendering and Glue Coating Forming: The shaped cord bundle is fed into the calendering machine, and double-sided glue coating calendering is completed under the conditions of set roller temperature, roller gap and linear speed. S4. Post-processing and finished product collection: After cooling, straightening, and cutting, the rolled steel wire cord fabric is wound up to obtain the finished belt layer.

[0012] Preferably, in step S2, the threading rule of one cord corresponding to one reed gap is strictly followed to prevent parallel and overlapping cords; after threading calibration, the spacing accuracy of the cords can reach ±0.03mm.

[0013] Preferably, in step S3, an S-type four-roll calender is used for calendering, and the calendering roll temperatures are set as follows: front roll 90-95℃, middle roll 95-100℃, and rear roll 90-95℃; the calendering roll gap is 0.6-1.5mm, and the calendering linear speed is 30-60m / min.

[0014] Preferably, the temperature of the rubber compound used for calendering is 90-100°C, and the Mooney viscosity ML(1+4) of the rubber compound at 100°C is 55-65.

[0015] The beneficial effects of this invention are as follows: 1. High positioning accuracy: Adopting a special steel reed structure with one tooth per reed, combined with high-precision reed gap processing and three-dimensional calibration mechanism, the deviation of the cord spacing can be controlled within ±0.03mm, completely solving the problems of spacing deviation and disordered arrangement caused by the wear of traditional warping rollers, and significantly improving the uniformity of the cord arrangement in the belt layer.

[0016] 2. Low-friction protective coating: The reed teeth are made of high-carbon chromium stainless steel and plated with hard chrome. The low roughness design of the working surface, combined with the inlet arc chamfer, greatly reduces the frictional resistance during cord threading and operation, reduces damage to the cord coating, and ensures the bonding strength between the steel wire and the rubber.

[0017] 3. Good tension stability: Through the cooperation of the pre-tension stabilization unit and the tension adjustment roller group, the tension fluctuation of a single cord is controlled within ±5%. Combined with the installation layout of the reed close to the calendering roller, the shaking and tension fluctuation of the cord before entering the roller are reduced, avoiding defects such as uneven adhesive layer thickness and bubbles.

[0018] 4. Improved production quality: This invention can increase the pass rate of belt layer calendering production to over 99.5%, effectively reducing quality risks such as skipped stitches, overlapping stitches, and delamination. It is suitable for the calendering production of belt layers in various types of radial tires, such as all-steel truck tires and semi-steel passenger car radial tires, and has good versatility and engineering application value. Attached Figure Description

[0019] Figure 1 is an overall structural block diagram of the positioning device for rolled steel reeds with bundled layers according to the present invention; Figure 2 This is a vertical cross-sectional view of the steel reed. Figure 3 This is a magnified view of a single reed tooth. Figure 4 A schematic diagram showing the arrangement of the reed cords; Figure 5 This is a flowchart of the steel reed positioning belt lamination rolling process of the present invention.

[0020] In the diagram: 1. Cord spindle rack guide end; 2. Front tension stabilizing unit; 3. Tension adjusting roller group; 4. Steel reed body; 5. Upper reed beam; 6. Reed teeth; 7. Reed gap; 8. Lower reed beam; 9. Arc-shaped guide chamfer; 10. Reed tooth thickness section; 11. S-type four-roll calender inlet; 12. Forming belt layer discharge conveyor section; 13. Reed seat adjustment mechanism. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1 to 5 As shown, this embodiment of the invention provides a reed positioning device for tire belt lamination, including a reed body 4, a reed seat adjustment mechanism 13, and a front tension stabilizing unit 2. The reed body 4 is composed of an upper reed beam 5, a lower reed beam 8, and several reed teeth 6 arranged at equal intervals, adopting a one-reed-one-tooth arrangement structure. A reed gap 7 is formed between adjacent reed teeth 6 to allow a single steel cord to pass through. An arc-shaped guide chamfer 9 is provided at the entrance end of the reed teeth 6. The reed teeth 6 are densely arranged at the edge of the reed body 4. The reed seat adjustment mechanism 13 is fixedly connected to the steel reed body 4. The reed seat adjustment mechanism 13 includes a mounting bracket structure with three adjustment dimensions: horizontal, vertical, and vertical. The pre-tension stabilizing unit 2 is located on the feeding side of the reed body 4 and is equipped with an independent tension adjustment component corresponding to each individual steel wire cord.

[0023] The single-tooth reed arrangement allows for independent positioning of individual cords, structurally preventing issues such as skipped cords, overlapping cords, and twisting. The denser reed teeth at the edges constrain lateral cord spread, ensuring stable belt width. A three-dimensional adjustment bracket facilitates precise reed positioning and adapts to different rolling lines. Independent tension components evenly distribute the tension of each cord. Overall, this significantly improves the regularity of cord arrangement, reduces friction damage to the cord coating, and provides a stable and regular cord bundle for the rolling process, improving belt density uniformity from the source.

[0024] Among them, the reed tooth 6 is made of high carbon chromium stainless steel with hard chrome plating on the surface and a working surface roughness Ra≤0.4μm; the radius of the arc-shaped guide chamfer 9 at the inlet end of the reed tooth 6 is R0.3~R0.5mm, and the dimensional accuracy of the reed gap 7 is ±0.02mm.

[0025] High-carbon chromium stainless steel with hard chrome plating is wear-resistant and durable. The low-roughness working surface and rounded chamfers reduce cord friction, protect the plating, and maintain the accuracy of reed gap dimensions over a long period of time.

[0026] The thickness of the reed teeth 6 is 0.2 to 2.0 mm, and the effective working width of the steel reed body 4 is 40 to 80 mm larger than the width of the belt layer to be processed.

[0027] The thickness range is suitable for steel wire cords of different specifications, and the width allowance is reserved for installation adjustment and edge constraint space, taking into account the production versatility of various tire types and belt lamination.

[0028] Among them, the reed seat adjustment mechanism 13 is a three-dimensional adjustable reed seat mounting bracket. The steel reed body 4 is fixed at the front end of the calender feed port 200-500mm through the three-dimensional adjustable reed seat mounting bracket. After calibration, the parallelism between the steel reed body 4 and the calender roll is ≤0.05mm / m, and the incident angle between the steel wire cord and the steel reed body 4 is 90°±0.3°.

[0029] Close-range installation shortens the travel distance after the cord is shaped, reducing tension fluctuations; high-precision parallelism and incident angle calibration ensure that the cord enters the roller perpendicularly, improving the consistency of the arrangement.

[0030] It also includes a tension adjusting roller group 3, which is set between the front tension stabilizing unit 2 and the reed body 4. The front tension stabilizing unit 2 and the tension adjusting roller group 3 work together to stabilize and control the tension of a single steel wire cord at 5 to 15 N, with a tension fluctuation range of ≤ ±5%.

[0031] The two-stage tension mechanism gradually evens out the cord tension, keeping fluctuations to a minimum, preventing cord swaying and loosening, and ensuring stable calendering feed and uniform adhesive layer thickness.

[0032] A calendering process for tire belt lamination includes the following steps: S1. Steel cord opening and tension pretreatment: The steel cord is opened from the spindle frame and tension is evenly adjusted by the pre-tension stabilization unit 2 and the tension adjustment roller group 3 so that the tension of a single cord is stabilized within the set range. S2. Reed threading and positioning calibration: The steel wire cord is threaded into the corresponding reed gap 7 of the reed body 4 according to the rule of one reed and one gap. The parallelism and centering of the reed body 4 are calibrated by the reed seat adjustment mechanism 13 so that the cord forms a regular cord bundle with equal spacing and parallelity. S3, Calendering and Glue Coating Forming: The shaped cord bundle is fed into the calendering machine, and double-sided glue coating calendering is completed under the conditions of set roller temperature, roller gap and linear speed. S4. Post-processing and finished product collection: After cooling, straightening, and cutting, the rolled steel wire cord fabric is wound up to obtain the finished belt layer.

[0033] The process first stabilizes the tension of the monofilaments through tension pretreatment, and then achieves precise warping of the cords through reed threading and calibration, so that the cords enter the calendering process in an equidistant and parallel state, eliminating the potential for disordered arrangement from the feeding end; combined with precise control of calendering parameters and post-processing processes such as cooling and correction, it can ensure uniform rubber layer thickness, reduce defects such as bubbles and delamination, significantly improve the overall forming quality and production qualification rate of the belt layer, and is suitable for mass production of belt layers for various types of radial tires.

[0034] In step S2, the installation rule of one cord corresponding to one reed gap 7 is strictly followed to prevent parallel and overlapping cords; after installation calibration, the spacing accuracy of the cords can reach ±0.03mm.

[0035] The single-filament, single-gap threading rule eliminates the possibility of overlapping or merging threads from an operational perspective. Combined with position calibration, it can ensure high precision in the spacing between the cords and improve the uniformity of the cord arrangement in the belt layer.

[0036] In step S3, an S-type four-roll calender is used for calendering. The calendering roll temperatures are set as follows: front roll 90-95℃, middle roll 95-100℃, and rear roll 90-95℃. The calendering roll gap is 0.6-1.5mm, and the calendering linear speed is 30-60m / min.

[0037] Gradient roller temperature adapts to the plasticizing and flow characteristics of the rubber compound, and matches the roller gap and linear speed parameters to ensure uniform and sufficient double-sided coating, balancing calendering production efficiency and molding quality.

[0038] The temperature of the rubber compound used for calendering is 90-100℃, and the Mooney viscosity ML(1+4) of the rubber compound at 100℃ is 55-65.

[0039] Within this temperature and Mooney viscosity range, the fluidity and adhesive properties of the adhesive are balanced, ensuring both uniform and full application of the adhesive while preventing scorching and guaranteeing the adhesion of the cord. Example 1: Application of all-steel heavy-duty truck tire belt lamination This embodiment is for the production of 4+3×0.35ST steel cord all-steel heavy-duty tire belt layer rolling, using the reed positioning device and rolling process of the present invention.

[0040] Device parameter configuration Steel reed body: reed tooth thickness 0.8mm, reed gap width 1.3mm, effective working width 1000mm, which is 60mm larger than the finished width of the belt layer; the reed teeth are made of high carbon chromium stainless steel, with hard chrome plating on the surface, working surface roughness Ra=0.2μm, and the inlet end is equipped with an R0.4mm arc-shaped guide chamfer, and the reed gap machining accuracy is ±0.02mm; the two sides of the steel reed are reinforced with 5 teeth each to prevent the cord from spreading.

[0041] Installation and calibration: The steel reed body is fixed at the front end of the feed inlet 11 of the S-type four-roll calender 350mm away using the three-dimensional adjustable reed mounting bracket. After calibration, the parallelism between the steel reed and the calender roll is 0.03mm / m, and the incident angle of the cord is 90°±0.3°.

[0042] Tension system: The pre-tension stabilization unit, together with the tension adjustment roller group, sets the tension of a single steel wire cord to 10N, and controls the tension fluctuation within ±3%.

[0043] Calendering process steps 1. Steel cord opening and tension pretreatment: The steel cord is output from the cord spindle frame outlet 1, and passes through the pre-tension stabilization unit 2 and the tension adjustment roller group 3 in sequence to complete the tension equalization, and the tension of a single cord is stabilized at 10N.

[0044] 2. Reed threading and positioning calibration: The cords are threaded into the corresponding reed gaps 7 of the main body 4 of the reed according to the rule of one reed per gap, and the edge cords are threaded into the dense reed tooth area; the position of the reed is finely adjusted by the reed seat adjustment mechanism 13 to ensure parallelism and centering. After being limited by the reed teeth 6, the cords form a regular cord bundle with equal spacing and parallelism, and the cord spacing accuracy reaches ±0.02mm.

[0045] 3. Calendering and coating: The shaped cord bundle enters the calender through the feed port 11 of the S-type four-roll calender. The calender roll temperature is set to 95℃ for the front roll, 98℃ for the middle roll, and 95℃ for the rear roll, with a roll gap of 1.0mm and a calender line speed of 40m / min. The temperature of the rubber material used is 95℃, and the Mooney viscosity ML1+4100℃ is 60, which completes the uniform coating on both sides.

[0046] 4. Post-processing and finished product collection: The calendered cord fabric is output through the forming belt layer discharge conveyor section 12, and then passes through the cooling roller for shaping, correction and centering, and length cutting in sequence. Finally, it is wound up to obtain the finished belt layer.

[0047] The production results of this embodiment are as follows: the cords are evenly arranged, with no skipped cords, no overlapping cords, and no twisting; the adhesive layer of the belt layer has a uniform thickness, with no bubbles and no risk of delamination; the product qualification rate reaches 99.8%, and the high-speed performance and durability of the belt layer are significantly improved.

[0048] Example 2: Application of semi-steel passenger car radial tire belt lamination This embodiment is implemented using the technical solution of the present invention for a semi-steel passenger car radial tire belt lamination scenario using 1×2+×0.30ST steel cord.

[0049] Device parameter configuration Steel reed body: reed tooth thickness 0.6mm, reed gap width 0.8mm, effective working width 1000mm; reed tooth surface is plated with hard chrome, roughness Ra≤0.3μm, inlet end R0.3mm arc chamfer, reed teeth are evenly arranged throughout the width.

[0050] Installation and calibration: The reed is installed 300mm in front of the feed inlet of the calender. After calibration, the parallelism is ≤0.04mm / m and the cord incident angle is 90°±0.3°.

[0051] Tension system: The tension of a single cord is set to 8N, and the tension fluctuation is ≤±4%.

[0052] Calendering process steps: 1. Tension pretreatment: After the steel wire cord is opened, it is evenly distributed by the tension system, and the tension of a single wire is stabilized at 8N.

[0053] 2. Reed positioning and calibration: Thread the cords evenly across the entire width using a one-tooth-per-reed method. After calibrating the reed position, the cord spacing accuracy should be ±0.03mm.

[0054] 3. Calendering and coating: An S-type four-roll calender is used, with the roll temperatures set to 92℃ for the front roll, 96℃ for the middle roll, and 92℃ for the rear roll. The calendering line speed is 40m / min to complete the double-sided coating.

[0055] 4. Post-processing and material collection: After cooling, correction, and cutting, the material is wound up to obtain the finished belt layer.

[0056] The production results of this embodiment are as follows: the belt layer has high flatness, the cord positioning is accurate, the rubber layer is uniform and without defects, and the tire's high-speed driving stability and durability are significantly improved.

[0057] In summary, this invention, through the combination of a dedicated reed positioning device and a matching calendering process, achieves high-precision, low-damage, and high-stability calendering production of tire belt layer steel cords, effectively solving many pain points of traditional processes and possessing significant technological advancements and practical value.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel reed positioning device for tire belt lamination, comprising a steel reed body (4), a reed seat adjustment mechanism (13), and a front tension stabilizing unit (2), characterized in that: The main body of the steel reed (4) consists of an upper reed beam (5), a lower reed beam (8) and several reed teeth (6) arranged at equal intervals. It adopts a one-reed-one-tooth arrangement structure. A reed gap (7) is formed between adjacent reed teeth (6) to allow a single steel wire cord to pass through. The entrance end of the reed teeth (6) is provided with an arc-shaped guide chamfer (9). The reed teeth (6) are densely arranged on the edge of the main body of the steel reed (4). The reed seat adjustment mechanism (13) is fixedly connected to the steel reed body (4), and the reed seat adjustment mechanism (13) includes a mounting bracket structure with three adjustment dimensions: horizontal, vertical and vertical. The pre-tension stabilizing unit (2) is located on the feed side of the reed body (4) and is equipped with an independent tension adjustment component corresponding to each single steel wire cord.

2. The steel reed positioning device for tire belt lamination according to claim 1, characterized in that: The reed tooth (6) is made of high carbon chromium stainless steel and has a hard chrome plating treatment on the surface. The surface roughness Ra≤0.4μm; the radius of the arc-shaped guide chamfer (9) at the entrance end of the reed tooth (6) is R0.3~R0.5mm, and the dimensional accuracy of the reed gap (7) is ±0.02mm.

3. The steel reed positioning device for tire belt lamination according to claim 1, characterized in that: The thickness of the reed teeth (6) is 0.2 to 2.0 mm, and the effective working width of the steel reed body (4) is 40 to 80 mm larger than the width of the belt layer to be processed.

4. The steel reed positioning device for tire belt lamination according to claim 1, characterized in that: The reed seat adjustment mechanism (13) is a three-dimensional adjustable reed seat mounting bracket. The steel reed body (4) is fixed at the front end of the calender feed port 200-500mm by the three-dimensional adjustable reed seat mounting bracket. After calibration, the parallelism between the steel reed body (4) and the calender roll is ≤0.05mm / m, and the incident angle between the steel wire cord and the steel reed body (4) is 90°±0.3°.

5. A steel reed positioning device for tire belt lamination according to claim 1, characterized in that, It also includes a tension adjusting roller group (3), which is located between the front tension stabilizing unit (2) and the reed body (4); the front tension stabilizing unit (2) and the tension adjusting roller group (3) work together to stabilize the tension of a single steel wire cord at 5 to 15 N, with a tension fluctuation range of ≤ ±5%.

6. A calendering process applied to tire belt layer calendering, implemented based on the steel reed positioning device according to any one of claims 1 to 5, characterized in that, Includes the following steps: S1. Steel cord opening and tension pretreatment: The steel cord is opened from the spindle frame and tension is evenly adjusted by the pre-tension stabilization unit (2) and tension adjustment roller group (3) so that the tension of a single cord is stabilized within the set range. S2. Steel reed threading and positioning calibration: Thread the steel wire cord into the corresponding reed gap (7) of the steel reed body (4) according to the rule of one reed and one gap. The parallelism and centering of the steel reed body (4) are calibrated by the reed seat adjustment mechanism (13) so that the cord forms a regular cord bundle with equal spacing and parallelity. S3, Calendering and Glue Coating Forming: The shaped cord bundle is fed into the calendering machine, and double-sided glue coating calendering is completed under the conditions of set roller temperature, roller gap and linear speed. S4. Post-processing and finished product collection: After cooling, straightening, and cutting, the rolled steel wire cord fabric is wound up to obtain the finished belt layer.

7. A calendering process for tire belt lamination according to claim 6, characterized in that, In step S2, the installation rule of one cord corresponding to one reed gap (7) is strictly followed to prevent parallel and overlapping cords; after installation calibration, the spacing accuracy of the cords can reach ±0.03mm.

8. The calendering process for tire belt lamination according to claim 6, characterized in that, In step S3, an S-type four-roll calender is used for calendering. The calendering roll temperatures are set as follows: front roll 90-95℃, middle roll 95-100℃, and rear roll 90-95℃; the calendering roll gap is 0.6-1.5mm, and the calendering linear speed is 30-60m / min.

9. A calendering process for tire belt lamination according to claim 6, characterized in that, The temperature of the rubber compound used for calendering is 90-100℃, and the Mooney viscosity ML(1+4) of the rubber compound at 100℃ is 55-65.

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