A multi-dimensional tension control device for the production of dipped cord fabric

Abstract

This utility model relates to the field of tire cord fabric production technology, and in particular to a multi-dimensional tension control device for producing PVC-impregnated tire cord fabric. It includes an impregnation tank and a roller frame. The roller frame is fixedly installed at the upper end of the impregnation tank. A rotating assembly is rotatably installed inside the impregnation tank, along with a transmission gear and a small gear. A rope is bonded and fixed to one side of the small gear. A support assembly is fixedly installed inside the impregnation tank. The rotating assembly includes a rotating roller, through which a large gear is fixedly connected, and through which a cam assembly is fixedly connected. In this utility model, multi-dimensional forces are applied to the tire cord fabric, actively intervening in the impregnation process. Dynamic twisting and pulling of the tire cord fabric increases the effective contact area between the fiber bundles and the adhesive, allowing the adhesive to coat every single filament and even its tiny grooves, promoting uniform flow of the adhesive on the fabric surface, and balancing the adhesive layer thickness in different areas.

Description

Technical Field

[0001] This utility model relates to the field of curtain fabric production technology, specifically a multi-dimensional tension control device for the production of PVC-impregnated curtain fabric. Background Technology

[0002] Cord fabric is an industrial fabric used to manufacture the skeleton of tires and other rubber products. It is named for its fabric structure, which is similar to bamboo curtain. Cord fabric production involves twisting high-strength polyester or nylon filaments and weaving them into dense canvas. Then, it is impregnated with rubber and heat-set to make it adhere firmly to the rubber. The woven fabric is then warped and woven to obtain a blank. The blank is then impregnated, stretched, and dried to become the cord fabric used for the skeleton of tires and other rubber products. In the production process of tire cord fabric, impregnation is the core process that determines its bonding performance with rubber, the strength and durability of the final product. It can be called the key turning point in the transformation of tire cord fabric from "textile fabric" to "rubber skeleton material". Its core purpose is to form a uniform adhesive film on the surface of high-strength polyester or nylon filaments through chemical and physical reactions. This not only solves the problem of poor compatibility between fibers and rubber due to the difference in polarity, but also enhances the fatigue resistance, heat resistance and dimensional stability of the fibers. This ensures that the tire cord fabric always maintains its skeleton support function when rubber products such as tires are subjected to repeated compression, stretching and friction, and avoids failure problems such as delamination and breakage. However, in the process of impregnating tire cord fabric, the adhesive solution relies solely on gravity and surface tension to penetrate, which is not only slow and prone to trapping air at the fiber interlacing points, resulting in insufficient impregnation, but also causes "leakage points" or local stacking of adhesive points due to insufficient adhesive supply in this area, leading to uneven film thickness. Therefore, a multi-dimensional tension control device for impregnated tire cord fabric production is proposed to address the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a multi-dimensional tension control device for the production of dipped cord fabric, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A multi-dimensional tension control device for producing dipped cord fabric includes a dipping tank and a roller frame. The roller frame is fixedly installed on the upper end of the dipping tank. A rotating assembly is rotatably installed inside the dipping tank. A transmission gear is rotatably installed inside the dipping tank. A small gear is rotatably installed inside the dipping tank. A rope is glued and fixed to one side of the small gear. A support assembly is fixedly installed inside the dipping tank. The rotating assembly includes a rotating roller. A large gear is fixedly connected through the rotating roller. A cam assembly is fixedly connected through the rotating roller. The support assembly includes a limiting frame. A pressure plate is slidably connected inside the limiting frame. A support spring is welded to the bottom end of the pressure plate. Two limiting rods are welded to the upper end of the pressure plate. A through hole is opened inside the pressure plate. A support block is fixed between the two limiting rods. A groove is opened at the upper end of the support block.

[0005] As a further optimization of this utility model, two transmission gears and two pinions are provided, and the two transmission gears and pinions are symmetrically distributed inside the impregnation tank. The transmission gear is engaged on one side of the large gear, and the pinion is engaged below the transmission gear.

[0006] As a further optimization of this utility model, the end of the rope furthest from the pinion is glued and fixed to a glue-impregnated box, and the connection point between the rope and the pinion is located on a circle with radius R centered at the geometric center of the pinion, where R is three-quarters of the radius of the pinion.

[0007] As a further optimization of this utility model, the cam assembly includes a grooved cam, a side notch on the inner side of the grooved cam, a liquid inlet on the inner side of the grooved cam, a fixing plate fixedly installed on the inner side of the liquid inlet, a folding plate hinged to the fixing plate, a flow groove on the inner side of the grooved cam, a liquid outlet on the inner side of the grooved cam, and an upper notch on the inner side of the grooved cam.

[0008] As a further optimization of this utility model, the radial cross-sectional shape of the grooved cam is composed of a semi-circle and a semi-ellipse, the inner side of the side notch is connected to the inner side of the liquid inlet, the inner side of the liquid inlet is connected to the inner side of the flow channel, and the flow channel and the liquid outlet are interconnected.

[0009] As a further optimization of this utility model, the following features are provided: a rubber strip is bonded and fixed to the outside of the pressure plate, and the rubber strip bonded and fixed to the outside of the pressure plate is in close contact with the inner wall of the limiting frame; the bottom end of the support spring is fixedly connected to the limiting frame; the through hole is shaped like a frustum; and the opening diameter at the upper end of the through hole is half the opening diameter at the bottom end.

[0010] As a further optimization of this utility model, the support block is located below the rotating assembly, a cavity is formed on the inner side of the support block, the bottom end of the support block is in close contact with the upper end of the pressure plate, and the upper surface of the support block is arc-shaped.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, a multi-dimensional force is applied to the curtain fabric through a rotating component, a rope, and a support component. This actively intervenes in the impregnation process, dynamically twisting and pulling the curtain fabric to increase the effective contact area between the fiber bundles and the adhesive. This allows the adhesive to wrap around each monofilament and even its tiny grooves, and promotes the uniform flow of the adhesive on the fabric surface, balancing the thickness of the adhesive layer in different areas. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the rotating component structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the cam assembly of this utility model; Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the support component structure of this utility model; Figure 7 This is an exploded structural diagram of the support component of this utility model.

[0013] In the diagram: 1. Impregnation tank; 2. Roller frame; 3. Rotating assembly; 31. Rotating roller; 32. Large gear; 33. Cam assembly; 331. Grooved cam; 332. Side notch; 333. Liquid inlet; 334. Fixing plate; 335. Baffle plate; 336. Flow groove; 337. Liquid outlet; 338. Upper notch; 4. Transmission gear; 5. Pinion; 6. Rope; 7. Support component; 71. Limiting frame; 72. Pressure plate; 73. Supporting spring; 74. Limiting rod; 75. Through hole; 76. Support block; 77. Groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] Please see Figures 1-7 This utility model provides a technical solution: A multi-dimensional tension control device for producing dipped cord fabric includes a dipping tank 1 and a roller frame 2. The roller frame 2 is fixedly installed on the upper end of the dipping tank 1. A rotating assembly 3 is rotatably installed inside the dipping tank 1. A transmission gear 4 is rotatably installed inside the dipping tank 1. A small gear 5 is rotatably installed inside the dipping tank 1. A rope 6 is glued and fixed to one side of the small gear 5. A support assembly 7 is fixedly installed inside the dipping tank 1. The rotating assembly 3 includes a rotating roller 31. A large gear 32 is fixedly connected through the rotating roller 31. A cam assembly 33 is fixedly connected through the rotating roller 31. The support assembly 7 includes a limiting frame 71. A pressure plate 72 is slidably connected inside the limiting frame 71. A support spring 73 is welded to the bottom end of the pressure plate 72. Two limiting rods 74 are welded to the upper end of the pressure plate 72. A through hole 75 is opened inside the pressure plate 72. A support block 76 is fixed between the two limiting rods 74. A groove 77 is opened at the upper end of the support block 76.

[0017] As a further implementation of this solution, two transmission gears 4 and two pinions 5 are provided. The two transmission gears 4 and the pinions 5 are symmetrically distributed inside the impregnation tank 1. The transmission gear 4 is meshed on one side of the large gear 32, and the pinion 5 is meshed below the transmission gear 4. The end of the rope 6 away from the pinion 5 is glued and fixed to the impregnation tank 1. The connection point between the rope 6 and the pinion 5 is located on a circle with the geometric center of the pinion 5 as the center and a radius of R, where R is three-quarters of the radius of the pinion 5. This arrangement allows the large gear 32 to drive the two pinions 5 to rotate simultaneously through the two transmission gears 4 when it rotates. The "one-drive-two" configuration reduces the power source, reduces system complexity, reduces power components, and reduces costs and potential failure points. When the pinion 5 rotates, the connection point of the rope 6 will move in an arc trajectory with the center of the pinion 5 as the center and R as the radius, thereby changing the relative position of the rope 6 and the impregnation tank 1 and squeezing the fabric, causing the fabric to twist. As a further implementation of this solution, the cam assembly 33 includes a grooved cam 331. The grooved cam 331 has a side notch 332 on its inner side, an inlet hole 333 on its inner side, a fixing plate 334 fixedly mounted inside the inlet hole 333, and a hinged plate 335 connected to the fixing plate 334. The grooved cam 331 has a flow groove 336 on its inner side, an outlet hole 337 on its inner side, and an upper notch 338 on its inner side. The radial cross-sectional shape of the grooved cam 331 consists of a semi-circle and a semi-ellipse. The inner side of the side notch 332 communicates with the inner side of the inlet hole 333, and the inner side of the inlet hole 333 communicates with the inner side of the flow groove 336. The sides are connected, and the flow channel 336 and the outlet hole 337 are interconnected. The special shape of the grooved cam 331 allows it to exert different pressures on the fabric it contacts when it rotates, thus causing the fabric to be subjected to different tensions. When the side opening 332 is in the glue solution in the impregnation tank 1, the glue solution will enter the side opening 332 and push open the folding plate 335, and then enter the flow channel 336 through the inlet hole 333. When the grooved cam 331 is inverted, the folding plate 335, under the influence of gravity and the pressure of the glue solution, will, together with the fixing plate 334, close the inlet hole 333. Therefore, the glue solution will flow out through the outlet hole 337 and the upper opening 338 to fill the enlarged fiber gaps in the fabric. As a further implementation of this solution, a rubber strip is bonded and fixed to the outside of the pressure plate 72, and the rubber strip bonded and fixed to the outside of the pressure plate 72 is in close contact with the inner wall of the limiting frame 71. The bottom end of the support spring 73 is fixedly connected to the limiting frame 71. The through hole 75 is frustum-shaped, and the diameter of the upper opening of the through hole 75 is half the diameter of the bottom opening. The support block 76 is located below the rotating assembly 3. A cavity is opened on the inner side of the support block 76. The bottom end of the support block 76 is in close contact with the upper end of the pressure plate 72. The upper surface of the support block 76 is arc-shaped. The outer side of the pressure plate 72 is bonded with... The rubber strip is fixed and the rubber strip bonded to the outside of the pressure plate 72 is in close contact with the inner wall of the limiting frame 71. When the pressure plate 72 moves downward in the limiting frame 71, the medium in the limiting frame 71 can only be discharged through the through hole 75. Due to the shape of the through hole 75, the speed of the medium discharge in the limiting frame 71 can be accelerated. The arc shape of the upper end of the support block 76 can reduce the contact area with the fabric and reduce the friction between the support block 76 and the fabric. The groove 77 allows the adhesive that enters the cavity of the support block 76 through the through hole 75 to be output from 76.

[0018] Working process: When using the device, the cord fabric to be impregnated is passed through one roller frame 2 on the impregnation tank 1, immersed in the impregnation tank 1, and then exits through another roller frame 2 on the impregnation tank 1. During the impregnation and transmission of the fabric, the rotating assembly 3 can be rotated in the opposite direction of the fabric transmission direction. When the rotating roller 31 rotates, the fixed cam assembly 33 through which the rotating roller 31 passes will also rotate. Before the cam assembly 33 rotates, the upper notch 338 is located at the top of the grooved cam 331 and is exposed above the adhesive in the impregnation tank 1, while the side notch 332 is inside the adhesive in the impregnation tank 1. The adhesive will enter the side notch 332 and push open the folding plate 335. The adhesive then enters the flow channel 336 through the inlet hole 333. When the cam assembly 33 rotates, the special shape of the grooved cam 331 allows it to exert a certain amount of pressure on the taut fabric during rotation, causing the fabric to experience downward pressure. Simultaneously, the part of the fabric in contact with the grooved cam 331 undergoes a certain deformation, widening the gaps in the fabric fibers. At this time, the adhesive in the flow channel 336 flows into the inlet hole 333 and the outlet hole 337. Because the grooved cam 331 is inverted, the folding plate 335, under the influence of gravity and the pressure of the adhesive, together with the fixing plate 334, seals the inlet hole 333. Therefore, the adhesive will flow through the outlet hole 337. 7. The adhesive flows out through the upper notch 338 to fill the gaps in the enlarged fibers of the fabric, preventing uneven adhesive impregnation. When the grooved cam 331 presses down on the fabric, the fabric will press down on the support block 76, causing the support block 76 and the limiting rod 74 fixed to the support block 76 to move the pressure plate 72 downward. As the pressure plate 72 moves downward, the adhesive in the limiting frame 71 is squeezed and squeezed out from the through hole 75 into the cavity of the support block 76. The arc-shaped design at the upper end of the support block 76 prevents scratching the fabric when it comes into contact with it, while reducing the contact area with the fabric and reducing the resistance to fabric transmission. The groove 77 makes the support block... The adhesive liquid in cavity 76 is output from it and applied to the contact position between support block 76 and fabric. This can prevent poor impregnation effect when the fabric deforms upon contact with the device components. When the rotating roller 31 rotates, it drives the large gear 32 that is fixed through it to rotate. The rotation of the large gear 32 drives the meshing transmission gear 4 to rotate. When the transmission gear 4 rotates, it drives the meshing small gear 5 to rotate. As the small gear 5 rotates, the rope 6 fixed to one side of the small gear 5 will change the angle between itself and the small gear 5 due to the restriction of one end by the impregnation box 1, and squeeze the fabric to make the fabric twist to a certain extent, so as to impregnate the fabric in a twisted state. Through the above steps, the fabric will be subjected to multi-dimensional tension during the impregnation process in the impregnation tank 1, allowing the adhesive to penetrate the fabric fibers evenly and form a stable coating on the surface.

[0019] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-dimensional tension control device for producing dipped tire cord fabric, comprising a dipping tank (1) and a roller frame (2), characterized in that: A roller frame (2) is fixedly installed on the upper end of the impregnation tank (1). A rotating assembly (3) is rotatably installed inside the impregnation tank (1). A transmission gear (4) is rotatably installed inside the impregnation tank (1). A small gear (5) is rotatably installed inside the impregnation tank (1). A rope (6) is glued and fixed on one side of the small gear (5). A support assembly (7) is fixedly installed inside the impregnation tank (1). The rotating assembly (3) includes a rotating roller (31), through which a large gear (32) is fixedly connected, and through which a cam assembly (33) is fixedly connected. The support assembly (7) includes a limiting frame (71), a pressure plate (72) is slidably connected to the inner side of the limiting frame (71), a support spring (73) is welded to the bottom end of the pressure plate (72), two limiting rods (74) are welded to the upper end of the pressure plate (72), a through hole (75) is opened on the inner side of the pressure plate (72), a support block (76) is fixed between the two limiting rods (74), and a groove (77) is opened on the upper end of the support block (76).

2. The multi-dimensional tension control device for producing dipped tire cord fabric according to claim 1, characterized in that: Two transmission gears (4) and two pinions (5) are provided. The two transmission gears (4) and pinions (5) are symmetrically distributed inside the impregnation box (1). The transmission gear (4) is meshed on one side of the large gear (32), and the pinion (5) is meshed below the transmission gear (4).

3. The multi-dimensional tension control device for producing dipped tire cord fabric according to claim 1, characterized in that: The end of the rope (6) away from the pinion (5) is glued and fixed to the impregnation box (1). The connection point between the rope (6) and the pinion (5) is located on a circle with radius R centered on the geometric center of the pinion (5), where R is three-quarters of the radius of the pinion (5).

4. The multi-dimensional tension control device for producing dipped tire cord fabric according to claim 1, characterized in that: The cam assembly (33) includes a grooved cam (331), a side notch (332) is provided on the inner side of the grooved cam (331), an inlet hole (333) is provided on the inner side of the grooved cam (331), a fixing plate (334) is fixedly installed on the inner side of the inlet hole (333), a folding plate (335) is hinged to the fixing plate (334) by a hinge, a flow groove (336) is provided on the inner side of the grooved cam (331), an outlet hole (337) is provided on the inner side of the grooved cam (331), and an upper notch (338) is provided on the inner side of the grooved cam (331).

5. A multi-dimensional tension control device for producing dipped tire cord fabric according to claim 4, characterized in that: The radial cross-sectional shape of the grooved cam (331) is composed of a semi-circle and a semi-ellipse. The inner side of the side notch (332) is connected to the inner side of the liquid inlet (333). The inner side of the liquid inlet (333) is connected to the inner side of the flow groove (336). The flow groove (336) and the liquid outlet (337) are interconnected.

6. The multi-dimensional tension control device for producing dipped tire cord fabric according to claim 1, characterized in that: A rubber strip is bonded to the outside of the pressure plate (72), and the rubber strip bonded to the outside of the pressure plate (72) is in close contact with the inner wall of the limiting frame (71). The bottom end of the support spring (73) is fixedly connected to the limiting frame (71). The through hole (75) is shaped like a frustum. The opening diameter of the upper end of the through hole (75) is half the opening diameter of the bottom end.

7. The multi-dimensional tension control device for producing dipped tire cord fabric according to claim 1, characterized in that: The support block (76) is located below the rotating assembly (3). A cavity is provided on the inner side of the support block (76). The bottom end of the support block (76) is in close contact with the upper end of the pressure plate (72). The upper surface of the support block (76) is arc-shaped.

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