High-performance synthetic fiber crimping and setting integrated device

Abstract

The utility model relates to crimping and shaping technical field and disclose a kind of high-performance synthetic fiber crimping and shaping integrated device, including protective box, the front and rear surface of protective box is equipped with the first rectangular groove being communicated with its interior, the inside of protective box is provided with crimping and shaping component, crimping and shaping component includes four partitions, four partitions are all fixedly connected in the inside of protective box, four partitions are sequentially separated into tension adjusting area, crimping area, heat radiation shaping area, hot air shaping area and cooling area from back to front in protective box interior, in synthetic fiber processing process, by the synergistic effect of each component, heat radiation shaping area infrared heating tube preheating, hot air shaping area concave pipe, hot air outlet box consolidate form, cooling zone cooling pipe rapid solidification, auxiliary roller guide, unwinding and winding device, realize continuous operation, realize the comprehensive effect of fiber tension stability, three-dimensional spiral crimping molding, gradient heating shaping, rapid cooling fixation and continuous processing.

Description

Technical Field

[0001] This utility model relates to the field of curling and shaping technology, specifically to a high-performance integrated device for curling and shaping synthetic fibers. Background Technology

[0002] High-performance synthetic fibers (such as aramid, carbon fiber, and PPS) have become core raw materials in high-end fields such as aerospace, protective materials, and industrial filtration due to their excellent properties such as high strength, high temperature resistance, and corrosion resistance. In their processing, crimping and setting are two inseparable key steps: crimping requires mechanical action to form a regular crimped structure before the fiber macromolecular chains are fully solidified, giving the fiber elastic recovery ability; setting requires precise temperature control to fix the crimped structure and improve fiber crystallinity, ensuring that crimping rebound or shrinkage does not occur during subsequent use. The synergy between these two steps directly determines the fiber's elastic recovery rate (≥70%), crystallinity (≥45%), and dimensional stability. Improper processing can lead to insufficient fiber elasticity, easy breakage, or deformation during use, seriously affecting the quality of the end product.

[0003] Currently, the traditional technical solution for the crimping and setting of high-performance synthetic fibers in the industry is to use separate equipment in steps. The specific process is as follows: the fiber is first crimped by a special crimping machine (such as a stuffing box type or gear type crimping machine), and then transported to an independent setting machine (such as a hot air setting box or roller setting machine) by a transfer device such as guide rollers and conveyor belts for heating and setting. There is no coordinated control mechanism between the two processes, and the process parameters (such as tension, temperature, and speed) of the crimping machine and the setting machine need to be set and adjusted separately. This solution has become the mainstream choice for small and medium-sized fiber processing plants due to its simple equipment structure and low initial investment cost. However, the core model of "step-by-step processing" has unavoidable technical defects. Because the crimped fibers are in a fluffy and crimped state, their strength is reduced compared to the original fibers. When passing through transfer devices such as guide rollers and conveyor belts, they are prone to friction and compression with equipment parts, resulting in wear on the fiber surface (the single filament breakage rate increases to 3%-5%). At the same time, multiple fibers are prone to entanglement and knotting due to fluctuations in transfer tension, which requires manual disassembly. This not only increases labor costs but also causes fiber stretching and deformation, destroying the initially formed crimped structure. Utility Model Content

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an integrated device for crimping and setting high-performance synthetic fibers, which solves the problem of the traditional technical solution that generally uses separate equipment for crimping and setting of high-performance synthetic fibers in steps.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a high-performance synthetic fiber crimping and shaping integrated device, comprising a protective box, wherein the front and rear surfaces of the protective box are provided with a first rectangular groove communicating with the interior therein, and a crimping and shaping component is provided inside the protective box, the crimping and shaping component comprising four partitions, all of which are fixedly connected inside the protective box. The four partitions divide the interior of the protective box into a tension adjustment zone, a curling zone, a heat radiation shaping zone, a hot air shaping zone, and a cooling zone, from back to front. Each of the four partitions has a second rectangular groove, and the four second rectangular grooves and the two first rectangular grooves are rotatably connected to the left and right inner walls of the two partitions. The six auxiliary rollers are arranged in parallel front and back. The protective box contains two concave fixing plates arranged vertically and vertically, both of which are located inside the curling area. Among them, the second concave fixing plate located at the bottom is fixedly connected to the inner wall of the left side of the protective box, and a drive motor is fixedly connected to the right side of both second concave fixing plates, and a drive rod is fixed to the output end of both drive motors. Among them, the right ends of the two drive rods respectively rotate through the concave part of the corresponding second concave fixed plate and are rotatably connected to the inner wall of the corresponding second concave fixed plate; The outer walls of the two drive rods are fixedly fitted with curling rollers, and the outer walls of the two curling rollers are provided with annular shallow grooves.

[0006] Preferably, a third concave fixing plate is provided on the front surface of the second concave fixing plate located on the front side, and the third concave fixing plate is fixedly connected to the left and right inner walls of the protective box. Among them, the left and right inner walls of the third concave fixed plate are rotatably connected to spiral pattern heating rollers, and the roller surface of the spiral pattern heating rollers is provided with continuous spiral grooves. In this process, the fibers are forced to bend along a spiral trajectory within the spiral grooves, extending the curl that was originally only in a single plane into three-dimensional space, forming a spiral structure similar to a spring. The spiral pattern heating roller has a built-in electric heating element, and its temperature setting needs to match the glass transition temperature of the fiber. When the fiber passes through the spiral pattern heating roller, the high temperature causes the fiber molecular chain to change from a rigid state to a relaxed state. At this time, the mechanical constraint of the spiral groove will cause the molecular chain to rearrange along the spiral trajectory. As the fiber leaves the heating roller and enters the subsequent cooling zone, the molecular chain is quickly solidified, and the spiral curl shape is permanently fixed.

[0007] Preferably, a first mounting plate is fixedly connected to the left and right inner walls inside the protective box. The first mounting plate is located inside the curling area, and a first cylinder is fixedly connected to the upper surface of the first mounting plate. The telescopic end of the first cylinder slides through the lower surface of the first mounting plate, and the telescopic end of the first cylinder is fixedly connected to the corresponding second concave fixing plate.

[0008] Preferably, the left and right inner walls inside the protective box are fixedly connected to two infrared heating tube mounting brackets that are arranged vertically and vertically, and both infrared heating tube mounting brackets are located within the heat radiation shaping area. Multiple infrared heating tubes are fixedly installed on the opposite sides of the two infrared heating tube mounting brackets.

[0009] Preferably, three sets of hot air outlet boxes are fixedly connected to the left and right inner walls inside the protective box, and all three hot air outlet boxes are located inside the hot air shaping area. One set of hot air outlet boxes consists of two hot air outlet boxes arranged vertically and vertically. The left side of each of the six hot air outlet boxes is fixedly connected to a connecting pipe that communicates with its interior. The left end of each of the six connecting pipes passes through the left side of the protective box. The protective box has three concave tubes on its left side. The two ends of the right side of the three concave tubes are fixedly connected to the corresponding connecting pipes. The left side of each of the three concave tubes is fixedly connected to an external hot air connecting pipe that communicates with its interior.

[0010] Preferably, two sets of cooling pipes are fixedly connected to the left and right inner walls inside the protective box, and both sets of cooling pipes are located within the cooling zone; One set of cooling pipes consists of two cooling pipes arranged vertically and vertically. Each of the four cooling pipes is fixedly connected to multiple air outlet pipes, and the left ends of the four cooling pipes all extend through the left side of the protective box.

[0011] Preferably, a second mounting plate is fixedly connected to the left and right inner walls inside the protective box. The second mounting plate is located in the tension adjustment area. A second cylinder is fixedly connected to the upper surface of the second mounting plate. The telescopic end of the second cylinder slides through the lower surface of the second mounting plate. The second cylinder has a first concave fixing plate fixedly connected to its telescopic end. The left and right inner walls of the first concave fixing plate are rotatably connected to pressure rollers. The upper surface of the first concave fixing plate has two guide rods fixedly connected to it. The upper ends of both guide rods slide through the upper surface of the second mounting plate, and the upper ends of both guide rods are fixedly connected to a circular fixing plate. The outer walls of both guide rods are slidably sleeved with auxiliary springs. The upper ends of the two auxiliary springs are fixedly connected to the corresponding circular fixing plates, and the lower ends of the two auxiliary springs are fixedly connected to the second mounting plate.

[0012] Preferably, a winding device is fixedly connected to the front surface of the protective box, and an unwinding device is fixedly connected to the rear surface of the protective box.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a high-performance integrated device for crimping and shaping synthetic fibers, which has the following advantages: By setting up crimping and shaping components and multi-zone collaborative components, during the synthetic fiber processing, the various components work together to stabilize fiber tension. In the tension adjustment zone, the second cylinder, pressure roller, guide rod, and auxiliary spring stabilize fiber tension. In the crimping zone, the first cylinder adjusts the crimping roller spacing, and the drive motor drives the initial crimping. The spiral pattern heating roller achieves three-dimensional spiral crimping. In the heat radiation shaping zone, the infrared heating tube preheats the fiber. In the hot air shaping zone, the concave tube and hot air outlet box consolidate the shape. In the cooling zone, the cooling tube quickly solidifies the fiber. The auxiliary roller guides the fiber, and the unwinding and rewinding device enables continuous operation. This achieves a comprehensive effect of stable fiber tension, three-dimensional spiral crimping, gradient heating shaping, rapid cooling and fixing, and continuous processing. Compared with traditional step-by-step processing which is prone to wear, this method can precisely adapt to the processing needs of high-performance synthetic fibers, ensuring a reduced fiber damage rate and an improved crimp elasticity recovery rate. It avoids transport wear and uneven crimping shape, thereby improving the quality of synthetic fiber products and production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the high-performance synthetic fiber crimping and shaping integrated device of this utility model; Figure 2 This is a schematic diagram of the rear surface of the entire utility model; Figure 3 This is a schematic diagram of the interior of the protective box of this utility model; Figure 4 This is a schematic diagram showing the position of the drive motor of this utility model; Figure 5 This is a schematic diagram of the replaceable pressure roller of this utility model; Figure 6 This is a schematic diagram of the replaceable pressure roller of this utility model.

[0015] In the diagram: 1. Protective box; 2. Concave tube; 3. Cooling tube; 4. Winding device; 5. First rectangular groove; 6. Auxiliary roller; 7. Connecting pipe; 8. Unwinding device; 9. Partition plate; 10. Second rectangular groove; 11. First mounting plate; 12. First cylinder; 13. Circular fixing plate; 14. Guide rod; 15. Second cylinder; 16. Second mounting plate; 17. First concave fixing plate; 18. Pressure roller; 19. Second concave fixing plate; 20. Coiling roller; 21. Third concave fixing plate; 22. Spiral textured heating roller; 23. Infrared heating tube mounting bracket; 24. Hot air outlet box; 25. Drive motor. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-6 This utility model provides a new technical solution: a high-performance synthetic fiber crimping and shaping integrated device, including a protective box 1: the protective box 1 is the core load-bearing frame of the device. The front and rear surfaces of the protective box 1 are provided with first rectangular grooves 5 that communicate with their interiors. The interior of the protective box 1 is provided with crimping and shaping components and four partitions 9. The front surface of the protective box 1 is fixedly connected to a winding device 4, and the rear surface of the protective box 1 is fixedly connected to an unwinding device 8. The protective box 1 provides a closed installation space for all crimping and shaping components, and allows fibers to enter and exit through the first rectangular grooves 5. It works in conjunction with the winding device 4 and the unwinding device 8 to achieve continuous fiber processing and is the basic outer shell for realizing the function of the device.

[0018] Partition 9: Partition 9 is a partition component inside the protective box 1. It forms clearly defined processing areas by partitioning. The second rectangular groove 10 provides rotational installation space for the auxiliary roller 6, ensuring continuous fiber transport between areas.

[0019] Auxiliary roller 6: Auxiliary roller 6 provides full-process rotation guidance for synthetic fibers, avoiding damage caused by direct friction between the fibers and the inner wall of the rectangular groove, while maintaining a smooth fiber conveying path and ensuring that each processing step is precisely applied to the fibers.

[0020] Second mounting plate 16: The lower surface of the second mounting plate 16 is fixedly connected to the lower end of the auxiliary spring. The second mounting plate 16 provides a mounting reference for the components of the tension adjustment area, supports the second cylinder 15 and provides sliding support for the guide rod 14, ensuring the coordinated operation of the tension adjustment components.

[0021] Second cylinder 15: The second cylinder 15 is fixedly connected to the upper surface of the second mounting plate 16. The telescopic end of the second cylinder 15 slides through the lower surface of the second mounting plate 16 and is fixedly connected to the first concave fixing plate 17. The second cylinder 15 is the pressure adjustment power source of the pressure roller 18. The telescopic end drives the pressure roller 18 to rise and fall, clamping the fiber with the lower auxiliary roller 6 to achieve tension pre-adjustment.

[0022] First concave fixing plate 17: The first concave fixing plate 17 provides rotational mounting space for the pressure roller 18, transmits the driving force of the second cylinder 15 to the pressure roller, and at the same time ensures that the pressure roller rises and falls smoothly through the guide rod 14.

[0023] Pressure roller 18: Driven by the second cylinder 15, the pressure roller 18 clamps the synthetic fiber with the auxiliary roller 6, and works with the auxiliary spring to absorb the fluctuation of tension during transport, so as to avoid the fiber breakage or stretching deformation caused by sudden changes in tension, and provide a stable tension state for subsequent processing.

[0024] Guide rod 14: The outer walls of both guide rods 14 are slidably sleeved with auxiliary springs. The guide rods 14 provide vertical guidance for the lifting and lowering of the first concave fixed plate 17, restricting it to move only in the vertical direction, and avoiding uneven force on the fibers caused by the offset of the pressure roller 18.

[0025] Circular fixing plate 13: Two circular fixing plates 13 are fixedly connected to the upper ends of the two guide rods 14 respectively. The circular fixing plates 13 axially limit the auxiliary spring to prevent the auxiliary spring from falling off the guide rod 14, and at the same time enhance the structural stability of the top end of the guide rod 14.

[0026] Auxiliary springs: The lower ends of the two auxiliary springs are fixedly connected to the second mounting plate 16. The auxiliary springs absorb the tension fluctuations during the conveying of synthetic fibers through elastic deformation, buffer the pressure impact of the pressure roller 18, and maintain tension stability.

[0027] First mounting plate 11: A first cylinder 12 is fixedly connected to the upper surface of the first mounting plate 11. The first mounting plate 11 provides mounting support for the first cylinder 12, ensuring that the telescopic end of the first cylinder can accurately drive the second concave fixed plate 19 and adjust the spacing of the curling roller 20.

[0028] First cylinder 12: The first cylinder 12 is an adjustment component for the spacing of the crimping roller 20. By extending and retracting the telescopic end, it drives the upper second concave fixed plate 19 to rise and fall, adapting to the crimping requirements of fibers of different specifications.

[0029] Second concave fixing plate 19: Both concave parts of the second concave fixing plates 19 are rotatably connected to drive rods. The second concave fixing plates 19 provide mounting support for the drive motor 25, drive rods and curling roller 20, ensuring that the trajectory of the curling roller 20 is stable when it rotates, and achieving precise initial curling.

[0030] Drive motor 25: Two drive motors 25 are fixedly connected to the right side of the two second concave fixed plates 19 respectively. The output ends of the two drive motors 25 are fixedly connected to drive rods. The drive motors 25 are the rotation power source of the crimping roller 20. They drive the drive rods and crimping roller 20 to rotate through the output ends, and use the roller surface texture to perform preliminary planar crimping of the fibers.

[0031] Drive rods: Both drive rods are fixedly sleeved with crimping rollers 20. The drive rods transmit the rotational power of the drive motor 25 and convert the power into the rotation of the crimping rollers 20, which in turn drive the crimping rollers to crimp the fibers.

[0032] Curling roller 20: Two curling rollers 20 are fixedly sleeved on the outer wall of two drive rods respectively. The outer wall of both curling rollers 20 is provided with annular shallow grooves. The curling rollers 20 perform preliminary planar curling of synthetic fibers through the annular shallow grooves and rotation, laying the foundation for subsequent three-dimensional spiral curling.

[0033] Third concave fixing plate 21: The third concave fixing plate 21 provides rotational installation space for the spiral pattern heating roller 22, ensuring that the heating roller is stable in position during processing and does not shift.

[0034] Spiral pattern heating roller 22: The spiral pattern heating roller 22 raises the temperature to the glass transition temperature of the fiber through the built-in electric heating element, which relaxes the fiber molecular chain. At the same time, the spiral groove forces the fiber to bend along the spiral trajectory, expanding the single plane curl into a three-dimensional spiral structure, realizing the initial forming of three-dimensional curl.

[0035] Infrared heating tube mounting bracket 23: Multiple infrared heating tubes are fixedly installed on the opposite sides of the two infrared heating tube mounting brackets 23. The infrared heating tube mounting bracket 23 provides stable installation support for the infrared heating tubes, ensuring that the infrared heating tubes can evenly cover the fiber conveying path and realize thermal radiation heating.

[0036] Infrared heating tube: The infrared heating tube emits heat radiation, which evenly heats the fibers entering the heat radiation setting zone, making the overall temperature of the fibers more uniform, further relaxing the molecular chains, preparing for subsequent hot air setting, and avoiding uneven curling caused by local temperature differences.

[0037] Hot air outlet box 24: Each of the six hot air outlet boxes 24 has a connecting pipe 7 fixedly connected to its interior on the left side. The hot air outlet box 24 receives external hot air and blows it evenly onto the upper and lower surfaces of the fiber. Through convection heat transfer, the fiber is kept at the glass transition temperature, which consolidates the three-dimensional spiral crimp shape and improves the crimp uniformity.

[0038] Connecting pipes 7: The left ends of the six connecting pipes 7 all pass through the left side of the protective box 1 and are fixedly connected to the corresponding concave pipes 2. The right ends of the six connecting pipes 7 are fixedly connected to the corresponding hot air outlet boxes 24. The connecting pipes 7 are the conveying channels for hot air from the concave pipes 2 to the hot air outlet boxes 24, ensuring that the external hot air can be stably transmitted to each hot air outlet box.

[0039] Concave tube 2: Each of the three concave tubes 2 has an external hot air connection pipe that communicates with its interior fixedly connected to its left side. The concave tube 2 receives the hot air delivered by the external hot air connection pipe and distributes it evenly to the two connection pipes 7 to realize the on-demand distribution of hot air and provide a stable heat flow for hot air shaping.

[0040] Cooling pipe 3: Cooling pipe 3 receives external cold air and blows it onto the fiber through the air outlet pipe, quickly removing the heat from the fiber and rapidly solidifying the relaxed molecular chains, permanently fixing the three-dimensional spiral curl shape. The corresponding upper and lower settings ensure that the upper and lower surfaces of the fiber are cooled synchronously, avoiding curling and rebound.

[0041] Air outlet pipes: Multiple air outlet pipes are fixedly connected to four cooling pipes 3. The air outlet pipes disperse the cold air in the cooling pipes 3 and blow it toward the fiber, increasing the contact area between the cold air and the fiber, improving the cooling efficiency, and ensuring that the fiber cools down and solidifies quickly.

[0042] Unwinding device 8: The unwinding device 8 is fixedly connected to the rear surface of the protective box 1. The unwinding device 8 is used to fix the unwinding roller wound with synthetic fibers. It provides continuous fiber raw materials to the device by unwinding at a uniform speed and is the starting feeding component for fiber processing.

[0043] Winding device 4: The winding device 4 is fixedly connected to the front surface of the protective box 1. The winding device 4 is used to fix the winding roller and wind up the crimped and shaped fiber at a speed that matches the fiber conveying speed, so as to realize the continuous closed loop of the processing flow.

[0044] Furthermore, when using this high-performance synthetic fiber crimping and shaping integrated device, firstly, the unwinding roller with the synthetic fiber wound is fixedly connected to the unwinding device 8. Then, the front end of the synthetic fiber enters the interior of the protective box 1 through the inner wall of the first rectangular groove 5 located on the rear side. Then, it passes through the lower surface of the pressure roller 18, then through the inner wall of the corresponding second rectangular groove 10, then through the opposite surfaces of the two crimping rollers 20, then down through the upper surface of the spiral pattern heating roller 22, then up through the inner wall of the corresponding second rectangular groove 10, then through the opposite surfaces of the two infrared heating tube mounting brackets 23, then through the inner wall of the corresponding second rectangular groove 10, then through the opposite surfaces of multiple hot air outlet boxes 24, then through the inner wall of the corresponding second rectangular groove 10, then through the opposite surfaces of multiple cooling pipes 3, and finally through the inner wall of the first rectangular groove 5 located on the front side, and is finally fixed on the winding roller of the winding device 4. Subsequently, three external hot air connection pipes are connected to external hot air pipes, and four external cold air delivery pipes are fixedly connected to four cooling pipes 3. Subsequently, the pressure of the pressure roller 18 is pre-set by the second cylinder 15, the distance between the two curling rollers 20 is adjusted by the first cylinder 12 in the curling zone, the speed of the drive motor 25 is set, the temperature of the spiral pattern heating roller 22 is set to the fiber glass transition temperature, the temperature of the infrared heating tube is set to 80-100℃, the hot air temperature in the hot air setting zone is the same as that of the spiral pattern heating roller, and the cold air temperature in the cooling zone is set to 20-25℃. The second cylinder 15 is activated, and the telescopic end of the second cylinder 15 drives the first concave fixed plate 17 and the pressure roller 18 to descend, clamping the fiber with the lower auxiliary roller 6. The guide rod 14 slides along the second mounting plate 16 to ensure that the pressure roller 18 moves vertically without deviation. The auxiliary spring absorbs the fluctuation tension during fiber conveying, avoiding sudden changes in tension that could cause fiber breakage or stretching deformation, thus providing a stable fiber conveying state for subsequent crimping and shaping. The process involves starting the drive motor 25, which drives the drive rod and the crimping roller 20 to rotate. The roller surface uses the annular shallow groove pattern to perform initial planar crimping of the fiber. Then, the fiber enters the spiral pattern heating roller 22, whose built-in electric heating element heats the roller surface to the set temperature. The fiber molecular chains relax due to the heat, and the spiral groove forces the fiber to bend along the spiral trajectory, expanding the single planar crimp into a three-dimensional spiral structure. The mechanical constraint causes the molecular chains to rearrange along the spiral trajectory, completing the initial three-dimensional crimping. In the process, the fiber enters the heat radiation setting zone, where multiple infrared heating tubes on the two infrared heating tube mounting brackets 23 emit heat radiation to uniformly heat the fiber. Through heat radiation, the overall temperature of the fiber tends to be uniform, further relaxing the molecular chains and preparing for subsequent hot air setting, thus avoiding uneven curling due to local temperature differences. Among them, the external hot air is diverted to six hot air outlet boxes 24 through the concave tube 2, and hot air is blown evenly to the upper and lower surfaces of the fiber. Convection heat transfer keeps the fiber at the glass transition temperature. The spiral curl shape is further consolidated under the action of continuous hot air, and the molecular chains are fully arranged along the spiral structure. Compared with single heat radiation shaping, hot air shaping improves the curl uniformity. The shaped fibers enter the cooling zone, and external cold air blows onto the fibers through cooling pipe 3 and multiple air outlet pipes. The cold air quickly removes the heat from the fibers, causing the loose molecular chains to solidify rapidly and the three-dimensional spiral curl shape to be permanently fixed. Two sets of cooling pipes 3 are set up vertically to ensure that the upper and lower surfaces of the fibers are cooled synchronously, avoiding curling and rebound due to different cooling rates. Among them, the unwinding device 8 and the winding device 4 are started. The unwinding roller unwinds at a uniform speed. After the fiber is processed in each area, it is wound up at a uniform speed by the winding roller at a speed matching the conveying speed. The six auxiliary rollers 6 rotate and guide throughout the process to avoid damage caused by friction between the fiber and the inner wall of the first rectangular groove 5 and the second rectangular groove 10. The entire processing process is carried out continuously in the protective box 1 without the need for transfer between equipment. By setting up crimping and shaping and multi-zone collaborative components, during the synthetic fiber processing, the second cylinder 15, pressure roller 18, guide rod 14 and auxiliary spring in the tension adjustment zone stabilize the fiber tension; the first cylinder 12 in the crimping zone adjusts the spacing of the crimping roller 20; the drive motor 25 drives the initial crimping; the spiral pattern heating roller 22 realizes three-dimensional spiral crimping; the infrared heating tube in the heat radiation shaping zone preheats; the concave tube 2 and hot air outlet box 24 in the hot air shaping zone consolidate the shape; the cooling tube 3 in the cooling zone quickly solidifies; the auxiliary roller 6 guides; and the unwinding and rewinding devices 4 and 8 realize continuous operation. This achieves a comprehensive effect of stable fiber tension, three-dimensional spiral crimping, gradient heating shaping, rapid cooling and fixing, and continuous processing. Compared with traditional step-by-step processing which is prone to wear, this method can accurately adapt to the processing needs of high-performance synthetic fibers, ensuring a reduced fiber damage rate and an improved crimping elasticity recovery rate. It avoids transport wear and uneven crimping shape, thereby improving the quality and production efficiency of synthetic fiber products.

[0045] Example 1: Application of the convex pressure roller replacing the pressure roller 18 in low-friction synthetic fiber tension adjustment scenarios. like Figure 5 As shown When a new materials factory processes low-friction coefficient synthetic fibers (such as PTFE-coated fibers), the original pressure roller 18 has a smooth roller surface, which has insufficient friction with the fiber surface. During tension adjustment, the fibers are prone to slippage and deviation. Slippage leads to large fluctuations in fiber tension, and the subsequent crimping roller 20 in the crimping zone cannot accurately apply crimping force, resulting in uneven crimping density. Some fibers may even fail to form effective crimps, affecting the product's elastic recovery rate. Furthermore, the deviated fibers are prone to rubbing against the edge of the second rectangular groove 10 of the partition 9, leading to an increased monofilament breakage rate. At this time, the original pressure roller 18 is replaced with a convex pressure roller. The roller surface is integrally formed with multiple semi-circular convex points. The height of the convex points is adapted to the fiber thickness, and the installation dimensions are consistent with the original pressure roller.

[0046] The semi-circular protrusions of the convex pressure roller increase the contact friction with low-friction fibers, effectively preventing fiber slippage. Combined with the pressure adjustment of the second cylinder 15 and the buffer of the auxiliary spring, the fiber tension fluctuation range is reduced from the original ±15% to ±5%, and the tension stability is significantly improved. The protrusions are semi-circular in structure and have no sharp edges, avoiding scratching the fiber surface and reducing the single filament breakage rate. Stable tension ensures that the fiber is positioned accurately when entering the crimping zone, and fits more closely with the annular shallow groove pattern of the crimping roller 20. The initial crimping shape is uniform. The convex pressure roller does not affect the vertical guidance of the guide rod 14. Together with the auxiliary roller 6, it guides the fiber smoothly into the spiral pattern heating roller 22. The three-dimensional spiral crimping is more regular. Stable tension ensures that the fiber is heated evenly during subsequent heat radiation setting and hot air setting, resulting in better crimping shape consolidation and improved elastic recovery rate. The mounting shaft diameter and length of the convex pressure roller are exactly the same as the original pressure roller 18. It can be directly installed on the first concave fixing plate 17 without modifying the second cylinder 15, guide rod 14 and other related components. The elastic deformation characteristics of the semi-circular convex point work together with the auxiliary spring to buffer the tension impact and not increase the risk of additional fiber damage, which is suitable for the continuous processing requirements of low friction fibers.

[0047] Example 2: Application of the limiting pressure roller replacing the pressure roller 18 in a scenario of parallel processing of multiple fibers. like Figure 6 As shown When a textile factory processes multiple parallel synthetic fibers in batches (such as 6-8 aramid fibers produced simultaneously), the original pressure roller 18 has a smooth surface and cannot separate and limit individual fibers. The parallel fibers are prone to entanglement and adhesion during tension adjustment, causing the fibers entering the crimping zone to cross. The crimping roller 20 and the spiral pattern heating roller 22 cannot accurately crimp individual fibers, resulting in clumped crimping. The crimping uniformity of the product is poor, and the entangled fibers need to be manually disassembled, interrupting continuous production and reducing processing efficiency. At this time, the original pressure roller 18 is replaced with a limiting pressure roller. The roller surface has multiple circular grooves, the number of grooves matches the number of parallel fibers, the groove width is adapted to the diameter of a single fiber, and the installation dimensions are the same as the original pressure roller. The circular groove of the limiting pressure roller can separate each fiber individually, avoiding the entanglement and adhesion of parallel fibers, ensuring that each fiber passes through the tension adjustment zone independently. The groove cooperates with the auxiliary roller 6 below to apply stable tension to each fiber. The tension deviation of each fiber is controlled within ±3%, solving the problem of clumping and curling, and significantly improving the curling uniformity. The separated individual fibers remain parallel during subsequent conveying, precisely entering the annular shallow groove of the crimping roller 20 and the spiral groove of the spiral pattern heating roller 22. The three-dimensional spiral crimping and forming has strong consistency. The limiting structure does not affect the pressure adjustment of the second cylinder 15 and the buffering function of the auxiliary spring. The fiber tension can still flexibly adapt to the needs of different processing stages. There is no need to manually disassemble the wound fibers, which improves continuous production efficiency and avoids fiber stretching and deformation caused by disassembly. The installation method and length of the limiting pressure roller are the same as the original pressure roller 18. It can be directly replaced and installed without modifying the structure of the first concave fixing plate 17, guide rod 14, etc. The arc design of the circular groove fits the fiber surface, does not produce local pressure concentration, avoids fiber damage, and is suitable for the batch production needs of multiple fibers in parallel.

[0048] 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 high-performance synthetic fiber crimping and shaping integrated device, comprising a protective box (1), characterized in that: The protective box (1) has a first rectangular groove (5) on both the front and rear surfaces that communicates with its interior. The protective box (1) is equipped with a curling and shaping component, which includes four partitions (9). The four partitions (9) are fixedly connected to the interior of the protective box (1). Among them, four partitions (9) divide the interior of the protective box (1) from back to front into tension adjustment area, curling area, heat radiation shaping area, hot air shaping area and cooling area; Among them, each of the four partitions (9) is provided with a second rectangular groove (10), and the four second rectangular grooves (10) and the left and right inner walls of the two first rectangular grooves (5) are rotatably connected with auxiliary rollers (6), and the six auxiliary rollers (6) are arranged in parallel front and back. The protective box (1) has two concave fixing plates (19) arranged vertically and vertically, and both concave fixing plates (19) are located inside the curling area. Among them, the second concave fixing plate (19) located below is fixedly connected to the left inner wall of the protective box (1), and the right side of the two second concave fixing plates (19) is fixedly connected to the drive motor (25), and the output end of the two drive motors (25) is fixed with the drive rod. Among them, the right ends of the two drive rods respectively rotate through the concave part of the corresponding second concave fixing plate (19) and are respectively rotatably connected to the inner wall of the corresponding second concave fixing plate (19); Among them, the outer walls of the two drive rods are fixedly sleeved with curling rollers (20), and the outer walls of the two curling rollers (20) are provided with annular shallow grooves.

2. The high-performance synthetic fiber crimping and shaping integrated device according to claim 1, characterized in that: A third concave fixing plate (21) is provided on the front surface of the second concave fixing plate (19) located on the front side, and the third concave fixing plate (21) is fixedly connected to the left and right inner walls of the protective box (1); Among them, the left and right inner walls of the third concave fixed plate (21) are rotatably connected to a spiral pattern heating roller (22), and the roller surface of the spiral pattern heating roller (22) is provided with continuous spiral grooves.

3. The high-performance synthetic fiber crimping and shaping integrated device according to claim 1, characterized in that: The left and right inner walls inside the protective box (1) are fixedly connected to a first mounting plate (11), the first mounting plate (11) is located inside the curling area, and the upper surface of the first mounting plate (11) is fixedly connected to a first cylinder (12). The telescopic end of the first cylinder (12) slides through the lower surface of the first mounting plate (11), and the telescopic end of the first cylinder (12) is fixedly connected to the corresponding second concave fixing plate (19).

4. The high-performance synthetic fiber crimping and shaping integrated device according to claim 1, characterized in that: The protective box (1) has two infrared heating tube mounting brackets (23) fixedly connected to the left and right inner walls, which are arranged vertically and vertically respectively. Both infrared heating tube mounting brackets (23) are located in the heat radiation shaping area. Among them, multiple infrared heating tubes are fixedly installed on the opposite sides of the two infrared heating tube mounting brackets (23).

5. The high-performance synthetic fiber crimping and shaping integrated device according to claim 1, characterized in that: The protective box (1) has three sets of hot air outlet boxes (24) fixedly connected to the left and right inner walls. All three hot air outlet boxes (24) are located inside the hot air shaping area. Among them, a set of hot air outlet boxes (24) consists of two hot air outlet boxes (24) arranged vertically and vertically. The left side of each of the six hot air outlet boxes (24) is fixedly connected with a connecting pipe (7) that communicates with its interior. The left end of each of the six connecting pipes (7) passes through the left side of the protective box (1). Among them, the left side of the protective box (1) is provided with three concave tubes (2), the two ends of the right side of the three concave tubes (2) are respectively fixedly connected to the corresponding connecting pipes (7), and the left side of the three concave tubes (2) is fixedly connected to an external hot air connecting pipe that communicates with its interior.

6. The high-performance synthetic fiber crimping and shaping integrated device according to claim 1, characterized in that: The protective box (1) has two sets of cooling pipes (3) fixedly connected to the left and right inner walls, and both sets of cooling pipes (3) are located in the cooling zone. Among them, a set of cooling pipes (3) consists of two cooling pipes (3) arranged vertically and vertically. Multiple air outlet pipes are fixedly connected to each of the four cooling pipes (3). The left ends of the four cooling pipes (3) all pass through the left side of the protective box (1).

7. The high-performance synthetic fiber crimping and shaping integrated device according to claim 1, characterized in that: The left and right inner walls inside the protective box (1) are fixedly connected to a second mounting plate (16). The second mounting plate (16) is located in the tension adjustment area. The upper surface of the second mounting plate (16) is fixedly connected to a second cylinder (15). The telescopic end of the second cylinder (15) slides through the lower surface of the second mounting plate (16). The telescopic end of the second cylinder (15) is fixedly connected to the first concave fixing plate (17), the left and right inner walls of the first concave fixing plate (17) are rotatably connected to the pressure roller (18), and the upper surface of the first concave fixing plate (17) is fixedly connected to two guide rods (14). Among them, the upper ends of the two guide rods (14) slide through the upper surface of the second mounting plate (16), the upper ends of the two guide rods (14) are fixedly connected to a circular fixing plate (13), and the outer walls of the two guide rods (14) are slidably sleeved with auxiliary springs. The upper ends of the two auxiliary springs are fixedly connected to the corresponding circular fixing plates (13), and the lower ends of the two auxiliary springs are fixedly connected to the second mounting plate (16).

8. The high-performance synthetic fiber crimping and shaping integrated device according to claim 1, characterized in that: The front surface of the protective box (1) is fixedly connected to a winding device (4), and the rear surface of the protective box (1) is fixedly connected to an unwinding device (8).

9. The high-performance synthetic fiber crimping and shaping integrated device according to claim 7, characterized in that: The pressure roller (18) can be replaced with a convex pressure roller. Multiple semi-circular convex points are integrally formed on the roller surface. The height of the convex points is adapted to the fiber thickness, and the installation dimensions are consistent with the original pressure roller.

10. The high-performance synthetic fiber crimping and shaping integrated device according to claim 7, characterized in that: The pressure roller (18) can be replaced by a limiting pressure roller. The roller surface has multiple circular grooves. The number of grooves matches the number of parallel fibers. The groove width is adapted to the diameter of a single fiber. The installation dimensions are consistent with the original pressure roller.

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