Process and equipment for manufacturing high-strength low-shrinkage tire cord

Abstract

This invention relates to the field of tire cord fabric preparation technology, and discloses a process and equipment for preparing high-strength, low-shrinkage tire cord fabric, including a preparation table. An impregnation tank is located inside the left side of the preparation table, and a linkage adjustment mechanism is installed on the front of the preparation table. This high-strength, low-shrinkage tire cord fabric preparation process and equipment utilizes the displacement of a floating block in the float chamber as the liquid level rises and falls, driving a rack to move synchronously. This, in turn, automatically adjusts the replenishment flow of the pump via gears, achieving real-time, stepless, and constant control of the adhesive level in the impregnation tank. This solves the problem of uneven impregnation or adhesive overflow and waste caused by liquid level fluctuations due to production line start-up, shutdown, and roll changing. It not only ensures the bonding strength between the cord fabric and rubber and reduces the scrap rate, but also avoids adhesive contamination of equipment and the environment, as well as the safety hazards of carbonization in a high-temperature oven, facilitating more efficient and safer operation in practice.

Description

Technical Field

[0001] This invention relates to the field of tire cord fabric preparation technology, specifically to a process and equipment for preparing high-strength, low-shrinkage tire cord fabric. Background Technology

[0002] Tire cord fabric is the skeleton or backbone of a tire. It is a special fabric woven from high-strength fibers such as polyester, nylon, rayon, or steel wire, embedded inside the rubber layer. Its main functions are to bear the weight of the vehicle body, absorb vibrations and impacts during driving, and maintain the shape stability of the tire under high-speed rotation and high pressure. The structure of the cord fabric is usually characterized by very thick and dense warp threads to provide the main strength, and thin and sparse weft threads used only for connection and fixation. Its material and laying angle directly determine the tire's load index, speed rating, and durability, and are the core guarantee of tire performance.

[0003] In the existing technology, the production of tire cord fabric involves using melt spinning, high-ratio stretching, and twisting processes to produce high-strength industrial yarns from polymers. Then, a special loom is used to weave the yarns into a fabric with dense warp and sparse weft. Finally, the fabric undergoes a core impregnation and heat treatment to attach a layer of adhesive film that can firmly bond with rubber to its surface. After heat setting to eliminate internal stress and stabilize dimensions, the finished tire cord fabric roll is produced.

[0004] However, during the impregnation process, the cord fabric will continuously carry away the adhesive. Although there is usually an automatic liquid replenishment system, when the speed of the machine changes drastically, such as when the production line starts, stops, or the roller is changed, the liquid level fluctuates violently. If the liquid level is too low, the cord fabric will not be sufficiently impregnated with adhesive, resulting in the bonding strength between the fabric and the rubber not meeting the standards, thus creating waste products. If the liquid level is too high, it will cause the adhesive to overflow, which not only wastes expensive impregnation liquid and increases production costs, but also pollutes the equipment and production environment. In some cases, the dripping adhesive may even cause fire hazards or fabric defects due to carbonization in the high-temperature oven.

[0005] Although the problem of glue replenishment can be solved, the impregnation solution is a complex suspension. If it is left to stand for a long time or the circulation speed is too slow, the heavy filler will settle at the bottom of the tank, while the light latex will float. Although the liquid level is constant, the glue concentration at the bottom of the tank is too high and the glue concentration at the top is too low. When the cord fabric passes through, the upper part is impregnated with thin glue and the lower part is impregnated with thick glue, resulting in a serious problem of uneven glue impregnation quality. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a process and equipment for preparing high-strength, low-shrinkage tire cord fabric, which has the advantages of automated liquid replenishment and avoiding uneven impregnation quality, thus solving the problems mentioned in the background technology.

[0007] The present invention provides the following technical solution: a high-strength, low-shrinkage tire cord fabric preparation equipment, including a preparation table, an impregnation tank is provided inside the left side of the preparation table, and a linkage adjustment mechanism is installed on the front of the preparation table; The power input end of the linkage adjustment mechanism is equipped with a flow regulation mechanism that converts liquid level sensing force into meshing force, and the power output end of the flow regulation mechanism is equipped with a synchronous stirring mechanism that converts lifting meshing force into meshing rotational force. The linkage adjustment mechanism consists of a flow adjustment mechanism and a synchronous stirring mechanism.

[0008] Preferably, the flow regulating mechanism includes a float chamber, a fixed rod, a floating block, a connecting block, a receiving frame, a rack, a connecting pipe, and a pump body. The back opening of the float chamber is connected to the interior of the impregnation tank. The bottom end of the fixed rod is fixedly installed to the bottom end of the float chamber. The interior of the floating block is slidably connected to the outer surface of the fixed rod. The lower surface of the connecting block is fixedly installed to the upper surface of the floating block, and the outer surface of the connecting block is slidably connected to the inner wall of the float chamber. The left side of the receiving frame is fixedly installed to the right side of the connecting block. The upper surface of the rack is fixedly installed to the lower surface of the receiving frame. One end of the outer surface of the connecting pipe is fixedly installed to the interior of the preparation platform. The outlet end of the pump body is fixedly installed to the other end of the connecting pipe. A control rod is installed inside the pump body. A gear is fixedly installed on the outer surface of the control rod. The outer surface of the gear is fixedly installed to one side of the rack.

[0009] Preferably, the synchronous stirring mechanism includes a rack, a rotating shaft, a gear, and a stirring blade. The outer surface of the rotating shaft is rotatably connected to the inner wall of the preparation table. The inside of the gear is fixedly installed to the outer surface of the rotating shaft. One side of the stirring blade is fixedly installed to the outer surface of the rotating shaft and the stirring blade is installed at the bottom of the immersion tank. The right side of the rack meshes with the outer surface of the gear.

[0010] Preferably, the pump body is provided with a connecting pipe 2 at the inlet end, and the connecting pipe 2 is connected to an external liquid storage tank.

[0011] Preferably, a second receiving frame is fixedly installed on the left side of the top end of the second rack, and the front of the second receiving frame is fixedly installed on the back of the first rack.

[0012] Preferably, a rectangular frame is fixedly installed on the left side of the rack, a receiving frame three is fixedly installed on the left side of the pump body, a rack three is fixedly installed at the bottom left side of the receiving frame three, a rotating shaft two is meshed on the left side of the rack three, a gear three is fixedly installed inside the rotating shaft two, the outer surface of the gear three is rotatably connected to the inner wall of the preparation table, and multiple sets of stirring blades two are installed on the outer surface of the gear three.

[0013] Preferably, a connecting frame is fixedly installed on the left side of the upper surface of the preparation table, and a conveying roller is installed on the opposite side of the connecting frame. The outer surface of the conveying roller is attached to the tire cord fabric body, and a receiving roller is installed inside the impregnation tank, with the outer surface of the receiving roller attached to the outer surface of the tire cord fabric body.

[0014] Preferably, a connecting frame two is fixedly installed on the upper surface of the preparation table, and a conveying roller two is installed on the opposite side of the connecting frame two, with the outer surface of the conveying roller two being in contact with the outer surface of the tire cord fabric body.

[0015] Preferably, a connecting frame three is fixedly installed on the right side of the upper surface of the preparation table, a compression roller one is installed on the opposite side of the connecting frame three, a compression roller two is installed on the opposite side of the connecting frame three, and a heat setting box is installed at the right end of the upper surface of the preparation table, and the interior of the heat setting box is installed on the outer surface of the tire cord fabric body.

[0016] A process for preparing high-strength, low-shrinkage tire cord fabric includes the following specific steps: S1. The tire cord fabric roll produced by the previous spinning and weaving processes is installed on the unwinding device. The ends of the fabric are sequentially introduced into the first conveyor roller, so that it fits against the outer surface of the first conveyor roller on the first connecting frame, ensuring that the fabric is flat and wrinkle-free. S2. The fabric enters the impregnation tank inside the left side of the preparation table and is guided by the receiving roller to be completely immersed in the adhesive. During this process, the linkage adjustment mechanism works automatically: when the liquid level in the impregnation tank fluctuates, the liquid level in the float chamber changes synchronously, the floating block slides along the fixed rod, and drives the receiving frame to move through the connecting block, driving the rack to rise and fall; the rack, through meshing with the gear, drives the control lever to rotate, automatically adjusting the flow rate of the pump body drawing liquid from the external storage tank through the connecting pipe 2 and replenishing liquid to the impregnation tank through the connecting pipe 1, maintaining a constant liquid level. S3. While rack one is rising and falling, rack two moves synchronously via receiving frame two. Rack two drives gear two to rotate, causing rotating shaft one to drive stirring blade one to stir at the bottom of the impregnation tank. Simultaneously, rack one moves relative to rack three via rectangular frame, driving gear three to rotate, causing rotating shaft two to drive stirring blade two to rotate synchronously, stirring the adhesive liquid from top to bottom to prevent sedimentation and stratification. After impregnation, the fabric leaves the liquid surface and is discharged via conveyor roller two on connecting frame two. S4. The fabric enters the three connecting frames and is squeezed by the cooperation of the first and second extrusion rollers to remove excess glue and control the amount of glue applied. Then the fabric enters the heat setting box for high-temperature drying and heat setting treatment to eliminate internal stress and stabilize the size. Finally, it is rolled into a finished curtain fabric roll.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This high-strength, low-shrinkage tire cord fabric preparation equipment utilizes the displacement of a floating block in the float chamber as the liquid level rises and falls to drive a rack and pinion to move synchronously. This, in turn, automatically adjusts the pump's replenishment flow rate via gears, achieving real-time, stepless, and constant control of the adhesive level in the impregnation tank. This solves the problem of uneven impregnation or adhesive overflow and waste caused by liquid level fluctuations due to production line start-up, shutdown, and roll changing. It not only ensures the bonding strength between the cord fabric and rubber and reduces the scrap rate, but also avoids adhesive contamination of equipment and the environment, as well as the safety hazards of carbonization in high-temperature ovens. This facilitates more efficient and safer operation in practice.

[0018] 2. This high-strength, low-shrinkage tire cord fabric preparation equipment utilizes the reciprocating motion of rack one to synchronously drive two sets of agitation mechanisms via a receiving frame two and a rectangular frame. Specifically, rack two drives gear two to rotate agitator blade one on rotating shaft one, and rack three drives gear three to rotate agitator blade two on rotating shaft two. This multi-dimensional and continuous agitation of the adhesive solution at the bottom and inside the impregnation tank effectively prevents the sedimentation of heavy fillers and the floating of light latex in the RFL impregnation solution, ensuring uniform adhesive concentration in the upper and lower layers of the tank. This solves the quality defect of uneven impregnation on the upper and lower surfaces of the cord fabric caused by adhesive stratification, and improves the impregnation quality and finished product stability of the cord fabric. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 For the present invention Figure 1 A top-view structural diagram; Figure 3 For the present invention Figure 1 A schematic diagram of the cross-sectional structure; Figure 4 For the present invention Figure 3 A schematic diagram of the side view structure; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A; Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B.

[0020] In the diagram: 1. Preparation platform; 2. Connecting frame one; 3. Conveying roller one; 4. Connecting frame two; 5. Conveying roller two; 6. Connecting frame three; 7. Extrusion roller one; 8. Extrusion roller two; 9. Tire cord fabric body; 10. Heat setting box; 11. Receiving roller; 12. Float chamber; 13. Fixed rod; 14. Floating block; 15. Connecting block; 16. Receiving frame one; 17. Agitating blade two; 18. Rack one; 19. Connecting pipe one; 20. Pump body; 21. Connecting pipe two; 22. Control rod; 23. Gear one; 24. Receiving frame two; 25. Rack two; 26. Rotating shaft one; 27. Gear two; 28. Agitating blade one; 29. ​​Rectangular frame; 30. Receiving frame three; 31. Rack three; 32. Gear three; 33. Rotating shaft two; 34. Impregnation tank. 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] Please see Figure 1 , Figure 4 , Figure 5 and Figure 6 A high-strength, low-shrinkage tire cord fabric preparation equipment includes a preparation table 1, an impregnation tank 34 is provided inside the left side of the preparation table 1, and a linkage adjustment mechanism is installed on the front of the preparation table 1. The power input end of the linkage adjustment mechanism is equipped with a flow regulation mechanism that converts liquid level sensing force into meshing force, and the power output end of the flow regulation mechanism is equipped with a synchronous stirring mechanism that converts lifting meshing force into meshing rotational force. The linkage adjustment mechanism consists of a flow adjustment mechanism and a synchronous stirring mechanism. The flow adjustment mechanism includes a float chamber 12, a fixed rod 13, a floating block 14, a connecting block 15, a receiving frame 16, a rack 18, a connecting pipe 19, and a pump body 20. The back opening of the float chamber 12 is connected to the interior of the impregnation tank 34. The bottom end of the fixed rod 13 is fixedly installed to the bottom end of the interior of the float chamber 12. The interior of the floating block 14 is slidably connected to the outer surface of the fixed rod 13. The lower surface of the connecting block 15 is fixedly installed to the upper surface of the floating block 14, and the outer surface of the connecting block 15 is slidably connected to the inner wall of the float chamber 12. The left side of the receiving frame 16 is fixedly installed to the right side of the connecting block 15. The upper surface of the rack 18 is fixedly installed to the lower surface of the receiving frame 16. One end of the outer surface of the connecting pipe 19 is fixedly installed to the interior of the preparation platform 1. The outlet end of the pump body 20 is connected to the other end of the connecting pipe 19. One end is fixedly installed. A control rod 22 is installed inside the pump body 20. A gear 23 is fixedly installed on the outer surface of the control rod 22. The outer surface of the gear 23 is fixedly installed on one side of the rack 18. A connecting pipe 21 is installed at the liquid inlet end of the pump body 20. The connecting pipe 21 is connected to an external liquid storage tank. A support frame 24 is fixedly installed on the left side of the top of the rack 25. The front of the support frame 24 is fixedly installed on the back of the rack 18. A rectangular frame 29 is fixedly installed on the left side of the rack 18. A support frame 30 is fixedly installed on the left side of the pump body 20. A rack 31 is fixedly installed at the bottom left side of the support frame 30. A rotating shaft 33 meshes with the left side of the rack 31. A gear 32 is fixedly installed inside the rotating shaft 33. The outer surface of the gear 32 is rotatably connected to the inner wall of the preparation table 1. Multiple sets of stirring blades 17 are installed on the outer surface of the gear 32.

[0023] Specifically, the flow regulation mechanism is connected to the impregnation tank 34 via the float chamber 12, and utilizes the floating block 14 to slide on the fixed rod 13 according to the liquid level. When the liquid level in the impregnation tank 34 changes, the floating block 14 drives the connecting block 15, the receiving frame 16, and the rack 18 to move up and down. The rack 18 meshes with the gear 23 on the control rod 22 inside the pump body 20, thereby converting the force generated by the change in liquid level into a meshing force, precisely controlling the start and stop of the pump body 20 and the flow rate, achieving precise adjustment of the liquid level in the impregnation tank 34, ensuring that the tire cord fabric is always in a suitable liquid level environment during the impregnation process, improving the impregnation effect and product quality stability.

[0024] Please see Figure 1 , Figure 4 , Figure 5 and Figure 6The synchronous stirring mechanism includes a rack 25, a rotating shaft 26, a gear 27, and a stirring blade 28. The outer surface of the rotating shaft 26 is rotatably connected to the inner wall of the preparation table 1. The inside of the gear 27 is fixedly installed to the outer surface of the rotating shaft 26. One side of the stirring blade 28 is fixedly installed to the outer surface of the rotating shaft 26, and the stirring blade 28 is installed at the bottom of the impregnation tank 34. The right side of the rack 25 meshes with the outer surface of the gear 27.

[0025] Specifically, the agitator blade 28 in the synchronous agitation mechanism is located at the bottom of the impregnation tank 34. When the rack 25 moves, it drives the meshing gear 27 to rotate, which in turn drives the rotating shaft 26 to rotate. This causes the agitator blade 28 to agitate at the bottom of the impregnation tank 34. This agitation allows the impregnation liquid at the bottom of the impregnation tank 34 to flow, preventing sedimentation or uneven concentration in certain areas. This allows the tire cord fabric to absorb the impregnation liquid more evenly during the impregnation process, improving the impregnation effect and ensuring consistent product quality. Furthermore, the continuous agitation of the stirring blade 28 can break the static state of the impregnation liquid in the impregnation tank 34, allowing the various components in the impregnation liquid to mix fully. This helps maintain the chemical stability of the impregnation liquid, providing a good and stable chemical environment for the impregnation of tire cord fabric. It is also conducive to an effective chemical reaction between the cord fabric fibers and the impregnation liquid, further improving the performance of the cord fabric.

[0026] Please see Figure 1 , Figure 2 and Figure 3 A connecting frame 1 2 is fixedly installed on the left side of the upper surface of the preparation table 1. A conveying roller 3 is installed on the opposite side of the connecting frame 1 2. The outer surface of the conveying roller 3 3 is attached to the tire cord fabric body 9. A receiving roller 11 is installed inside the impregnation tank 34, and the outer surface of the receiving roller 11 is attached to the outer surface of the tire cord fabric body 9. A connecting frame 2 4 is fixedly installed on the upper surface of the preparation table 1. A conveying roller 2 5 is installed on the opposite side of the connecting frame 2 4, and the outer surface of the conveying roller 2 5 is attached to the outer surface of the tire cord fabric body 9. A connecting frame 3 6 is fixedly installed on the right side of the upper surface of the preparation table 1. A pressing roller 7 is installed on the opposite side of the connecting frame 3 6, and a pressing roller 2 8 is installed on the opposite side of the connecting frame 3 6. A heat setting box 10 is installed at the right end of the upper surface of the preparation table 1, and the interior of the heat setting box 10 is attached to the outer surface of the tire cord fabric body 9.

[0027] Specifically, a conveyor roller 3 is installed on the connecting frame 2 on the left side of the upper surface of the preparation table 1, a receiving roller 11 is located in the middle impregnation tank 34, and a conveyor roller 5 is installed on the connecting frame 4 on the right side. The tire cord fabric body 9 passes through the conveyor roller 3, the receiving roller 11, and the conveyor roller 5 in sequence, enabling it to move smoothly and steadily on the preparation table 1. This avoids problems such as wrinkles and jamming during the conveying process, ensuring the continuity and stability of the production process and improving production efficiency. The receiving roller 11 is located inside the impregnation tank 34 and is in contact with the outer surface of the tire cord fabric body 9. During the conveying process of the cord fabric, the receiving roller 11 can guide the cord fabric to be fully immersed in the impregnation liquid in the impregnation tank 34. The rotation of the receiving roller 11 can assist the cord fabric to move in the impregnation liquid, so that the cord fabric and the impregnation liquid can be fully contacted, ensuring that the impregnation liquid can be evenly penetrated into the fibers of the cord fabric, thereby obtaining a good impregnation effect and enhancing the performance of the cord fabric. The extrusion roller 7 and extrusion roller 8 are installed opposite to each other on the connecting frame 36. When the tire cord fabric body 9 passes between the two, the extrusion roller 7 and extrusion roller 8 will apply a certain pressure to the cord fabric. This pressure effectively squeezes out excess impregnating liquid from the tire cord fabric, preventing it from carrying too much impregnating liquid into subsequent processes. This reduces waste of impregnating liquid and ensures the effectiveness of subsequent heat setting processes, resulting in more stable tire cord fabric quality. The heat setting box 10 is installed on the right end of the upper surface of the preparation table 1 and is mounted to the tire cord fabric body 9. After impregnation and extrusion, the tire cord fabric enters the heat setting box 10, where, under suitable temperature and time conditions, the fiber structure of the tire cord fabric is further stabilized and strengthened.

[0028] A process for preparing high-strength, low-shrinkage tire cord fabric includes the following specific steps: S1. Install 9 rolls of tire cord fabric, produced by the previous spinning and weaving processes, onto the unwinding device. Guide the fabric ends sequentially into the conveyor roller 3, ensuring they adhere to the outer surface of the conveyor roller 3 on the connecting frame 2, and guaranteeing the fabric is flat and wrinkle-free. S2. The fabric enters the impregnation tank 34 inside the left side of the preparation table 1, and is guided by the receiving roller 11 to be completely immersed in the adhesive. During this process, the linkage adjustment mechanism works automatically: when the liquid level in the impregnation tank 34 fluctuates, the liquid level in the float chamber 12 changes synchronously, the floating block 14 slides along the fixed rod 13, and drives the receiving frame 16 to move through the connecting block 15, driving the rack 18 to rise and fall; the rack 18 meshes with the gear 23, driving the control rod 22 to rotate, automatically adjusting the flow rate of the pump body 20 to draw liquid from the external storage tank through the connecting pipe 21 and replenish the liquid to the impregnation tank 34 through the connecting pipe 19, maintaining a constant liquid level. S3. While rack 18 is raised and lowered, rack 25 moves synchronously via receiving frame 24. Rack 25 drives gear 27 to rotate, causing rotating shaft 26 to drive stirring blade 28 to stir at the bottom of impregnation tank 34. Simultaneously, rack 18 moves relative to rack 31 via rectangular frame 29, driving gear 32 to rotate, causing rotating shaft 33 to drive stirring blade 17 to rotate synchronously, stirring the adhesive liquid from top to bottom to prevent sedimentation and stratification. After impregnation, the fabric leaves the liquid surface and is discharged via conveyor roller 25 on connecting frame 24. S4. The fabric enters the connecting frame 3 at point 6, and is squeezed by the cooperation of the extrusion roller 1 at point 7 and the extrusion roller 2 at point 8 to remove excess glue and control the amount of glue applied; then the fabric enters the heat setting box 10 for high-temperature drying and heat setting treatment to eliminate internal stress and stabilize the size, and finally rolls up into a finished curtain fabric roll.

[0029] Working principle: During use, the basic structure of the equipment includes an impregnation tank 34 located inside the left side of the preparation table 1. During operation, the tire cord fabric 9 passes through each station sequentially under the action of the conveying system: entering from the left, it is guided into the impregnation tank 34 by the conveying roller 3 on the connecting frame 1, and immersed in the adhesive solution by the receiving roller 11 within the tank; subsequently, the fabric leaves the liquid surface, is discharged by the conveying roller 25 on the connecting frame 2, and then passes through the squeezing rollers 17 and 28 on the connecting frame 3 to remove excess adhesive solution, finally entering the heat setting chamber 10 for high-temperature drying. During drying and setting, when the liquid level in the impregnation tank 34 fluctuates due to the fabric carrying away the adhesive or changes in vehicle speed, the liquid level in the float chamber 12, which is connected to the impregnation tank 34, changes synchronously. The floating block 14 located inside the float chamber 12 slides up and down along the fixed rod 13. The floating block 14 drives the receiving frame 16 to move through the connecting block 15, which in turn drives the rack 18 to perform vertical lifting and lowering movements. The rack 18 meshes with the gear 23 installed in the control valve inside the pump body 20. The gear 23 is fixed on the control rod 22. When the liquid level drops, the rack 18 moves down, carrying... The rotating gear 23 opens the valve to increase the replenishment volume; conversely, when the liquid level rises, the valve closes to reduce the replenishment volume. The pump body 20 draws adhesive from the external storage tank through the connecting pipe 21 and replenishes the impregnation tank 34 through the connecting pipe 19, thus achieving stepless automatic adjustment of the liquid level. While the rack 18 moves up and down, the receiving frame 24 on its back drives the rack 25 to move synchronously. The rack 25 meshes with the gear 27 mounted on the rotating shaft 26, thereby driving the rotating shaft 26 to rotate. The rotating shaft 26 is equipped with stirring blade 2. 8. Located at the bottom of the impregnation tank 34, the bottom adhesive liquid is stirred by rotation to prevent the sedimentation of heavy fillers. In order to further enhance the stirring effect, a rectangular frame 29 is also fixedly installed on the left side of the rack 18. When the rectangular frame 29 moves, it will have relative displacement with the rack 31 installed on the receiving frame 30, thereby driving the gear 32 meshing with the rack 31 to rotate. The gear 32 is installed on the rotating shaft 23 and drives the multiple sets of stirring blades 2 17 on it to rotate synchronously, stirring the adhesive liquid from another angle to ensure that the concentration of the upper and lower layers of adhesive liquid in the tank is uniform.

[0030] The heat setting box 10 is specifically an electrically heated hot air circulating drying box. It has multiple sets of upper and lower guide rollers inside to support and guide the tire cord fabric body 9 in a wave-like reciprocating motion. The inner wall of the box is equipped with electric heating tubes and a circulating fan to ensure that high-temperature hot air is evenly blown onto the fabric surface for drying and setting. During use, the entire equipment's power supply is connected to the main control cabinet of the preparation table 1 via an external industrial power source. The main control cabinet supplies power to the drive motor of the pump body 20, the electric heating tubes and fan of the heat setting box 10, and the drive motors of each conveying roller. The impregnation tank 34, float chamber 12, connecting pipe one 19, and connecting pipe two 21, because they contain RFL impregnation solution for extended periods, should be made of 304 or 316L stainless steel to prevent chemical corrosion. The floating block 14 needs to be made of... The components are made of hollow polytetrafluoroethylene or engineering plastic with a density lower than that of the adhesive and are corrosion-resistant, ensuring that they can float sensitively and are not corroded by the adhesive. The stirring blades 1-28, 2-17, 1-26, 2-33 and 11 are immersed in the adhesive for a long time and rotate. In addition to being made of stainless steel, their surfaces should be polished to prevent the adhesive from adhering and accumulating. The transmission components such as rack 1-18, rack 2-25, rack 3-31, gear 1-23, gear 2-27 and gear 3-32 are located in the drying area outside the preparation table 1. They can be made of quenched 45 steel or alloy steel to ensure meshing accuracy and wear resistance. The heat setting box 10 is in a high-temperature state for a long time. Its box body and internal guide rollers need to be made of heat-resistant stainless steel to prevent high-temperature oxidation and deformation.

[0031] During equipment operation, it is necessary to regularly check whether there is accumulated glue residue inside the float chamber 12 to prevent the floating block 14 from sliding along the fixed rod 13 and causing the liquid level regulation to malfunction; the dust and oil stains of rack 18, rack 25, rack 31 and each gear meshing part should be cleaned regularly, and lubricating oil should be added to ensure smooth transmission; before starting the pump body 20, check whether the connecting pipe 21 is inserted below the liquid level of the external storage tank to prevent dry running damage; when the production line is shut down for a long time, the glue in the impregnation tank 34 should be drained and used Clean with water to prevent the adhesive from drying out and forming a crust that clogs the connecting pipe 19 and all agitator blades; during operation, observe whether dried adhesive adheres to the surfaces of extrusion rollers 7 and 8, and clean them promptly to prevent them from getting tangled; when starting the heat setting box 10, start the circulating fan first and then turn on the electric heating tube to prevent local overheating from damaging the heating element; when stopping the machine, turn off the electric heating tube first and then turn off the fan after the temperature drops; in addition, regularly check whether the bearings of each conveyor roller and the drive motor are operating normally to ensure that the tension of the tire cord fabric body 9 is stable.

[0032] It should be noted that the scope of protection of this invention does not involve improvements to the internal structure and methods; furthermore, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, 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 a process, method, article, or apparatus.

[0033] 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 high-strength, low-shrinkage tire cord fabric preparation device, characterized in that: The preparation table (1) includes an impregnation tank (34) inside the left side of the preparation table (1) and a linkage adjustment mechanism is installed on the front of the preparation table (1). The power input end of the linkage adjustment mechanism is equipped with a flow regulation mechanism that converts liquid level sensing force into meshing force, and the power output end of the flow regulation mechanism is equipped with a synchronous stirring mechanism that converts lifting meshing force into meshing rotational force. The linkage adjustment mechanism consists of a flow adjustment mechanism and a synchronous stirring mechanism.

2. The high-strength, low-shrinkage tire cord fabric preparation equipment according to claim 1, characterized in that: The flow regulating mechanism includes a float chamber (12), a fixed rod (13), a floating block (14), a connecting block (15), a receiving frame (16), a rack (18), a connecting pipe (19), and a pump body (20). The back opening of the float chamber (12) is connected to the interior of the immersion tank (34). The bottom end of the fixed rod (13) is fixedly installed to the bottom end of the float chamber (12). The interior of the floating block (14) is slidably connected to the outer surface of the fixed rod (13). The lower surface of the connecting block (15) is fixedly installed to the upper surface of the floating block (14), and the outer surface of the connecting block (15) is connected to the float chamber. (12) is slidably connected to the inner wall. The left side of the support frame (16) is fixedly installed with the right side of the connecting block (15). The upper surface of the rack (18) is fixedly installed with the lower surface of the support frame (16). The outer surface of one end of the connecting pipe (19) is fixedly installed with the inside of the preparation table (1). The liquid outlet end of the pump body (20) is fixedly installed with the other end of the connecting pipe (19). The pump body (20) is internally controlled by a control rod (22). The outer surface of the control rod (22) is fixedly installed with a gear (23). The outer surface of the gear (23) is fixedly installed with one side of the rack (18).

3. The high-strength, low-shrinkage tire cord fabric preparation equipment according to claim 1, characterized in that: The synchronous stirring mechanism includes a rack two (25), a rotating shaft one (26), a gear two (27), and a stirring blade one (28). The outer surface of the rotating shaft one (26) is rotatably connected to the inner wall of the preparation table (1). The inside of the gear two (27) is fixedly installed with the outer surface of the rotating shaft one (26). One side of the stirring blade one (28) is fixedly installed with the outer surface of the rotating shaft one (26), and the stirring blade one (28) is installed at the bottom of the impregnation tank (34). The right side of the rack two (25) meshes with the outer surface of the gear two (27).

4. The high-strength, low-shrinkage tire cord fabric preparation equipment according to claim 2, characterized in that: The pump body (20) is equipped with a connecting pipe (21) at the inlet end, and the connecting pipe (21) is connected to an external storage tank.

5. The high-strength, low-shrinkage tire cord fabric preparation equipment according to claim 3, characterized in that: A support frame 2 (24) is fixedly installed on the left side of the top of the rack 2 (25), and the front of the support frame 2 (24) is fixedly installed on the back of the rack 1 (18).

6. The high-strength, low-shrinkage tire cord fabric preparation equipment according to claim 2, characterized in that: A rectangular frame (29) is fixedly installed on the left side of the rack (18), a receiving frame (30) is fixedly installed on the left side of the pump body (20), a rack (31) is fixedly installed at the bottom left side of the receiving frame (30), a rotating shaft (33) meshes with the left side of the rack (31), a gear (32) is fixedly installed inside the rotating shaft (33), the outer surface of the gear (32) is rotatably connected to the inner wall of the preparation table (1), and multiple sets of stirring blades (17) are installed on the outer surface of the gear (32).

7. The high-strength, low-shrinkage tire cord fabric preparation equipment according to claim 1, characterized in that: A connecting frame (2) is fixedly installed on the left side of the upper surface of the preparation table (1). A conveying roller (3) is installed on the opposite side of the connecting frame (2). The outer surface of the conveying roller (3) is attached to the tire cord fabric body (9). A receiving roller (11) is installed inside the impregnation tank (34), and the outer surface of the receiving roller (11) is attached to the outer surface of the tire cord fabric body (9).

8. The high-strength, low-shrinkage tire cord fabric preparation equipment according to claim 1, characterized in that: A connecting frame 2 (4) is fixedly installed on the upper surface of the preparation table (1), and a conveying roller 2 (5) is installed on the opposite side of the connecting frame 2 (4). The outer surface of the conveying roller 2 (5) is in contact with the outer surface of the tire cord fabric body (9).

9. The high-strength, low-shrinkage tire cord fabric preparation equipment according to claim 1, characterized in that: A connecting frame three (6) is fixedly installed on the right side of the upper surface of the preparation table (1). A squeezing roller one (7) is installed on the opposite side of the connecting frame three (6). A squeezing roller two (8) is installed on the opposite side of the connecting frame three (6). A heat setting box (10) is installed at the right end of the upper surface of the preparation table (1), and the interior of the heat setting box (10) is installed on the outer surface of the tire cord fabric body (9).

10. A process for preparing high-strength, low-shrinkage tire cord fabric, characterized in that: The specific steps include the following: S1. The tire cord fabric body (9) produced by the previous spinning and weaving process is installed on the unwinding device. The ends of the fabric are sequentially introduced into the conveyor roller (3) so that it fits against the outer surface of the conveyor roller (3) on the connecting frame (2), and the fabric is made flat and wrinkle-free. S2. The fabric enters the impregnation tank (34) inside the left side of the preparation table (1), and is guided by the receiving roller (11) to be completely immersed in the adhesive. During this process, the linkage adjustment mechanism works automatically: when the liquid level in the impregnation tank (34) fluctuates, the liquid level in the float chamber (12) changes synchronously, the floating block (14) slides along the fixed rod (13), and drives the receiving frame (16) to move through the connecting block (15), driving the rack (18) to rise and fall. The rack (18) meshes with the gear (23), driving the control rod (22) to rotate, automatically adjusting the flow rate of the pump body (20) to draw liquid from the external storage tank through the connecting pipe (21) and replenish the liquid to the impregnation tank (34) through the connecting pipe (19), maintaining a constant liquid level. S3. While rack one (18) is rising and falling, rack two (25) is moved synchronously by receiving frame two (24). Rack two (25) drives gear two (27) to rotate, so that rotating shaft one (26) drives stirring blade one (28) to stir at the bottom of impregnation tank (34). At the same time, rack one (18) moves relative to rack three (31) through rectangular frame (29), driving gear three (32) to rotate, so that rotating shaft two (33) drives stirring blade two (17) to rotate synchronously, stirring the adhesive liquid from top to bottom to prevent sedimentation and stratification. After impregnation, the fabric leaves the liquid surface and is discharged by conveying roller two (5) on connecting frame two (4). S4. The fabric enters the connecting frame three (6) and is squeezed by the cooperation of the extrusion roller one (7) and extrusion roller two (8) to remove excess glue and control the amount of glue applied; then the fabric enters the heat setting box (10) for high-temperature drying and heat setting treatment to eliminate internal stress and stabilize the size, and finally rolls up into a finished curtain fabric roll.

Images