Adjustable tensioning chemical fiber hair stretching and plying device

Abstract

This invention discloses an adjustable tension chemical fiber hair strand stretching and stranding device, relating to the field of chemical fiber hair strand production technology. It includes a chassis and an adjustment assembly. A vertical plate is fixedly connected to one side of the chassis. The adjustment assembly is disposed on one side of the vertical plate and includes support plates, a sliding groove, a limiting plate, guide rollers, a limiting block, an air box, a slide rail, a slider, a sealing plate, a sliding plate, a solenoid valve, and an adjusting spring. Support plates are symmetrically fixedly connected to one side of the vertical plate, and a sliding groove is formed on one side of each support plate. Limit plates are symmetrically fixedly connected to the opposite sides of the support plates, and two guide rollers are arranged between the support plates. Limit blocks are engaged between the limiting plates, and an air box is fixedly connected above the limiting plates. In use, this invention allows adjustment of the device based on the tension force on the strands, thereby adjusting the strand tension to prevent chemical fiber breakage. Furthermore, it allows for dust collection and recycling during raw material mixing.

Description

Technical Field

[0001] This invention relates to the field of chemical fiber hair production technology, specifically to an adjustable tension chemical fiber hair stretching and stranding device. Background Technology

[0002] Synthetic hair fibers refer to synthetic fibers or synthetic hair fibers used in wigs, hair accessories, or hair extensions. They are made of synthetic materials such as polyester, nylon, or Kanekalon and are designed to mimic the appearance and feel of human hair. In the production and processing of synthetic hair fibers, processing equipment is used to attach synthetic fibers to the synthetic fiber filaments through a spinning process and to stretch and twist the filaments to improve the performance and texture of the fibers.

[0003] Existing stretching and stranding equipment may cause breakage of synthetic hair fibers during the stretching process due to excessive tension caused by the thin diameter of the fibers. Furthermore, it can easily lead to dust dispersion when crushing raw materials.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed an adjustable tension chemical fiber hair strand stretching and stranding device. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable tension chemical fiber hair strand stretching and stranding device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable tension chemical fiber hair strand stretching and stranding device, comprising a chassis and an adjustment assembly. A vertical plate is fixedly connected to one side of the chassis. The adjustment assembly is disposed on one side of the vertical plate. The adjustment assembly includes a support plate, a slide groove, a limiting plate, a guide roller, a limiting block, an air box, a slide rail, a slider, a sealing plate, a sliding plate, a solenoid valve, and an adjustment spring. Support plates are symmetrically fixedly connected to one side of the vertical plate, and a slide groove is provided on one side of the support plate. Limiting plates are symmetrically fixedly connected to the sides of the support plates that are far apart from each other, and two guide rollers are provided between the support plates. Limiting blocks are engaged between the limiting plates, and an air box is fixedly connected above the limiting plates. Slide rails are symmetrically provided on the front and rear sides of the air box, and sliders are slidably connected within the slide rails. A sealing plate is fixedly connected to one side of the slider, and a sliding plate is fixedly connected between the sliders. A solenoid valve is fixedly connected to the middle of the sliding plate, and adjustment springs are symmetrically fixedly connected to both sides of the sliding plate.

[0007] Furthermore, the guide rollers away from the upright plate are slidably connected to the support plate via a groove, and all guide rollers are rotatably connected to the support plate. The limiting block is slidably connected to the limiting plate, and the limiting block is fixedly connected to the slider. A pressure sensor is provided at the lower part of the limiting plate.

[0008] Furthermore, the slider is engaged with the air box via a slide rail, and a sealing plate closes one side of the slide rail. The slide plate is elastically connected to the air box via an adjusting spring, and the slide plate is slidably connected to the air box.

[0009] Furthermore, a twisting motor is fixedly connected to the middle of the upright plate, and a rotating wheel is rotatably connected to the upper part of the upright plate. The rotating wheel and the twisting motor form a transmission structure through a belt and a pulley.

[0010] Furthermore, a crossbeam is fixedly connected to the other side of the chassis, and a crushing box is fixedly connected to the middle of the crossbeam. A guide plate is symmetrically fixedly connected to the upper part of the crushing box, and through slots are symmetrically opened on both sides of the crushing box. A dust extraction cover is fixedly connected to one side of the through slot.

[0011] Furthermore, a recycling bin is fixedly connected to one side of the crossbeam, and ventilation pipes are symmetrically fixedly connected to both sides of the recycling bin. A return trough is fixedly connected below the recycling bin, and the ventilation pipes are connected to the dust extraction cover.

[0012] Furthermore, a vibration spring is symmetrically fixedly connected inside the recycling bin, and a filter screen is fixedly connected to the other end of the vibration spring. An air pump is fixedly connected to the bottom of the recycling bin, and an air outlet pipe is fixedly connected to one side of the air pump. The air outlet pipe is T-shaped, and one end of the air outlet pipe is connected to the air box.

[0013] Furthermore, two crushing shafts are rotatably connected inside the crushing box, and a drive wheel is fixedly connected to one end of the crushing shaft, while a crushing motor is fixedly connected to the other end of the front crushing shaft, and the drive wheels mesh with each other.

[0014] Furthermore, a mixing cylinder is provided below the crossbeam, and a feed inlet is provided above the mixing cylinder. A mixing rod is rotatably connected inside the mixing cylinder, and the mixing rod forms a transmission structure with the crushing shaft on the front side through a belt and a pulley. The lower end of the crushing box and the lower end of the return trough are both located above the feed inlet, and the blades on the surface of the mixing rod are spiral-shaped.

[0015] Furthermore, a wire blowing tube is provided on one side of the mixing cylinder, and a spinneret is fixedly connected inside the wire blowing tube. A wire inlet tube is provided on one side of the wire blowing tube, and the other end of the air outlet pipe, which is not connected to the air pump or the air box, is connected to the wire blowing tube.

[0016] This invention provides an adjustable tension chemical fiber hair strand stretching and stranding device, which has the following advantages: during use, the device can be adjusted according to the tension force on the strand, thereby adjusting the tension of the strand to avoid breakage of the chemical fiber strand, and dust can be collected and recycled when the raw materials are stirred.

[0017] 1. In use, after the yarn passes between the guide rollers 304, the limiting plate 303 can monitor the pressure applied by the limiting block 305, thereby monitoring the tension of the yarn. When the yarn tension is too high, the control solenoid valve 311 increases the flow rate, and the air in the air box 306 flows from the side of the slide plate 310 near the air outlet pipe 17 to the other side, increasing the air pressure on the slide plate 310. Under the action of the adjusting spring 312, the slide plate 310 moves towards the air outlet pipe 17 within the air box 306. This, in turn, drives the limiting block 305 via the slider 308, bringing the guide rollers 304 closer to the inlet cylinder 26, increasing the distance between the guide rollers 304, and reducing the tension of the chemical fiber yarn, thus preventing it from breaking due to excessive force. Conversely, when the yarn tension is too low, the control solenoid valve 311 increases the flow rate, and the control solenoid valve 311 increases the flow rate, causing the guide rollers 304 to move closer to the inlet cylinder 26, increasing the distance between the guide rollers 304, and reducing the tension of the chemical fiber yarn, thus preventing it from breaking due to excessive force. The reduced flow rate of the solenoid valve 311 increases the air pressure on the slide plate 310, causing it to move away from the air outlet pipe 17 within the air box 306. This reduces the distance between the guide rollers 304, thereby increasing the tension of the wire and straightening it. During processing, the sealing plate 309 can seal the side of the slide rail 307 located between the slide plate 310 and the air outlet pipe 17, preventing air leakage that would prevent the adjustment of the slide plate 310's position. The limiting plate 303 and the slide rail 307 can respectively restrict the limiting block 305 and the slider 308, preventing the slide plate 310 and guide rollers 304 from becoming misaligned and causing additional stress on the wire. In summary, during use, the tension of the wire can be controlled, thus ensuring the wire is straight while preventing it from breaking due to excessive force.

[0018] 2. In use, after the raw materials are put into the crushing box 7, the crushing motor 20 drives the crushing shaft 18 to rotate in opposite directions within the crushing box 7 through the transmission wheel 19, crushing the raw materials. The guide plate 8 guides the raw materials and reduces dust dispersion during crushing. After the crushed raw materials fall from the crushing box 7, they enter the mixing cylinder 21 through the feed inlet 22 for heating. The mixing rod 23, driven by the crushing motor 20 and the belt pulley transmission mechanism, mixes the materials and conveys them to the blowing cylinder 24. The air pump 16 delivers air at high speed through the air outlet pipe 17. The molten material is blown into the spinning drum 24 and blown into fibers by the spinneret 25, which then adhere to the filament substrate in the feed drum 26, facilitating subsequent stretching into strands. The filament passes between the guide rollers 304 and enters the rotating wheel 5. The twisting motor 4 drives the rotating wheel 5 to rotate, thus twisting the filament. The guide rollers 304 prevent the filament in the feed drum 26 from twisting and tangling. The transmission between the crushing shaft 18 and the mixing rod 23 reduces the number of power sources and ensures the synergy of the device operation. In summary, during use, dust emission can be reduced and the synergy of the device operation can be ensured.

[0019] 3. In this invention, when crushing raw materials, the air pump 16 can extract air from the recovery box 11, thereby drawing the dust generated during crushing in the crushing box 7 into the dust extraction cover 10 through the vent pipe 12, and then into the recovery box 11 through the vent pipe 12. This prevents dust from accumulating in the crushing box 7 and hindering crushing, and further reduces dust dispersion. After the dust enters the recovery box 11, the filter screen 15 can intercept it, preventing dust from entering the air pump 16 and causing air pump 16 malfunction. The filter screen 15 is protected by the impact of airflow and... Under the dual action of the elastic force of the vibration spring 14, the dust adhering to the filter screen 15 can be shaken off and pushed into the return trough 13. The dust then slides down the return trough 13 and enters the mixing drum 21 from the feed inlet 22, completing the dust return and reducing resource waste. It also reduces the number of times the recycling box 11 needs to be cleaned. In summary, during use, the dust generated during crushing can be collected and returned, reducing resource waste. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an adjustable tension chemical fiber hair strand stretching and stranding device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the overall main structure of an adjustable tension chemical fiber hair strand stretching and stranding device according to the present invention;

[0022] Figure 3 This is a half-section three-dimensional exploded structure diagram of the air box of the adjustable tension chemical fiber hair strand stretching and stranding equipment of the present invention.

[0023] Figure 4 This invention relates to an adjustable tension chemical fiber hair strand stretching and stranding device. Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a half-sectional three-dimensional structural diagram of an adjustable tension chemical fiber hair strand stretching and stranding device according to the present invention.

[0025] Figure 6 This is a cross-sectional front view schematic diagram of an adjustable tension chemical fiber hair strand stretching and stranding device according to the present invention.

[0026] Figure 7 This is a half-section three-dimensional exploded view of the crushing box of an adjustable tension chemical fiber hair strand stretching and stranding device according to the present invention.

[0027] In the diagram: 1. Chassis; 2. Vertical plate; 3. Adjustment assembly; 301. Support plate; 302. Slide groove; 303. Limiting plate; 304. Guide roller; 305. Limiting block; 306. Air box; 307. Slide rail; 308. Slider; 309. Sealing plate; 310. Slide plate; 311. Solenoid valve; 312. Adjusting spring; 4. Twisting motor; 5. Rotary wheel; 6. Crossbeam; 7. Crushing box; 8. Guide plate; 9. Through groove; 10. Dust extraction cover; 11. Recycling box; 12. Vent pipe; 13. Return chute; 14. Vibration spring; 15. Filter screen; 16. Air pump; 17. Air outlet pipe; 18. Crushing shaft; 19. Drive wheel; 20. Crushing motor; 21. Mixing cylinder; 22. Feed inlet; 23. Mixing rod; 24. Blowing tube; 25. Spinneret; 26. Inlet tube. Detailed Implementation

[0028] Please see Figures 1 to 7 This invention provides a technical solution: an adjustable tension chemical fiber hair strand stretching and stranding device, comprising a chassis 1 and an adjusting assembly 3. A vertical plate 2 is fixedly connected to one side of the chassis 1. The adjusting assembly 3 is disposed on one side of the vertical plate 2. The adjusting assembly 3 includes a support plate 301, a slide groove 302, a limiting plate 303, a guide roller 304, a limiting block 305, an air box 306, a slide rail 307, a slider 308, a sealing plate 309, a sliding plate 310, a solenoid valve 311, and an adjusting spring 312. The support plate 301 is symmetrically fixedly connected to one side of the vertical plate 2, and a slide groove 302 is provided on one side of the support plate 301. A limiting plate 303 is symmetrically fixedly connected to the side that is far apart from each other, and two guide rollers 304 are provided between the support plates 301. A limiting block 305 is engaged between the limiting plates 303, and an air box 306 is fixedly connected above the limiting plate 303. Slide rails 307 are symmetrically opened on the front and rear sides of the air box 306, and a slider 308 is slidably connected in the slide rails 307. A sealing plate 309 is fixedly connected to one side of the slider 308, and a slide plate 310 is fixedly connected between the sliders 308. A solenoid valve 311 is fixedly connected to the middle of the slide plate 310, and adjusting springs 312 are symmetrically fixedly connected to both sides of the slide plate 310.

[0029] Please see Figures 1 to 4 The guide roller 304, which is away from the vertical plate 2, is slidably connected to the support plate 301 through the slide groove 302, and the guide roller 304 is rotatably connected to the support plate 301. The limiting block 305 is slidably connected to the limiting plate 303, and the limiting block 305 is fixedly connected to the slider 308. A pressure sensor is provided at the lower part of the limiting plate 303. The slider 308 is engaged with the air box 306 through the slide rail 307, and the sealing plate 309 closes one side of the slide rail 307. The slide plate 310 is elastically connected to the air box 306 through the adjusting spring 312, and the slide plate 310 is slidably connected to the air box 306.

[0030] The specific operation is as follows: During use, after the yarn passes between the guide rollers 304, the limiting plate 303 can monitor the pressure applied by the limiting block 305, thereby monitoring the tension of the yarn. When the yarn tension is too high, the control solenoid valve 311 increases the flow rate, and the air in the air box 306 flows from the side of the slide plate 310 near the air outlet pipe 17 to the other side, increasing the air flow. The air pressure on the slide plate 310 decreases, and under the action of the adjusting spring 312, it moves in the air box 306 towards the air outlet pipe 17. This, through the slider 308, drives the limiting block 305 to bring the guide rollers 304 closer to the inlet drum 26, increasing the distance between the guide rollers 304, reducing the tension of the chemical fiber yarn, and preventing the chemical fiber yarn from breaking due to excessive force. Conversely, when the yarn tension is too low, the control solenoid valve 311 increases the flow rate. The reduced flow rate of solenoid valve 311 increases the air pressure on slide plate 310, causing it to move away from air outlet pipe 17 within air box 306. This reduces the distance between guide rollers 304, thereby increasing the tension of the wire and straightening it. During processing, sealing plate 309 can seal the side of slide rail 307 located between slide plate 310 and air outlet pipe 17, preventing air leakage that would prevent adjustment of slide plate 310's position. Limiting plate 303 and slide rail 307 can respectively restrict limiting block 305 and slider 308, preventing slide plate 310 and guide rollers 304 from becoming misaligned and causing additional stress on the wire. In summary, during use, the tension of the wire can be controlled, thus ensuring the wire is straight while preventing it from breaking due to excessive force.

[0031] Please see Figures 1 to 2 and Figures 5 to 7A twisting motor 4 is fixedly connected to the middle of the upright plate 2, and a rotating wheel 5 is rotatably connected to the upper part of the upright plate 2. The rotating wheel 5 forms a transmission structure with the twisting motor 4 through a belt and a pulley. A crossbeam 6 is fixedly connected to the other side of the chassis 1, and a crushing box 7 is fixedly connected to the middle of the crossbeam 6. A guide plate 8 is symmetrically fixedly connected to the upper part of the crushing box 7, and through slots 9 are symmetrically opened on both sides of the crushing box 7. A dust extraction cover 10 is fixedly connected to one side of the through slot 9. A recovery box 11 is fixedly connected to one side of the crossbeam 6, and air pipes 12 are symmetrically fixedly connected to both sides of the recovery box 11. A return chute 13 is fixedly connected to the bottom of the recovery box 11. The air pipes 12 are connected to the dust extraction cover 10. Vibration springs 14 are symmetrically fixedly connected inside the recovery box 11, and a filter screen 15 is fixedly connected to the other end of the vibration springs 14. An air pump 16 is fixedly connected to the bottom of the recovery box 11, and an air outlet pipe 17 is fixedly connected to one side of the air pump 16. The air outlet pipe 17 is T-shaped. The air outlet pipe 17 is connected to the air box 306 at one end. Two crushing shafts 18 are rotatably connected inside the crushing box 7. A transmission wheel 19 is fixedly connected to one end of the crushing shaft 18. A crushing motor 20 is fixedly connected to the other end of the front crushing shaft 18. The transmission wheels 19 mesh with each other. A mixing cylinder 21 is set below the crossbeam 6. A feed inlet 22 is set above the mixing cylinder 21. A mixing rod 23 is rotatably connected inside the mixing cylinder 21. The mixing rod 23 forms a transmission structure with the front crushing shaft 18 through a belt and a pulley. The lower end of the crushing box 7 and the lower end of the return trough 13 are both located above the feed inlet 22. The blades on the surface of the mixing rod 23 are spiral-shaped. A wire blowing cylinder 24 is set on one side of the mixing cylinder 21. A spinneret 25 is fixedly connected inside the wire blowing cylinder 24. A wire inlet cylinder 26 is set on one side of the wire blowing cylinder 24. The other end of the air outlet pipe 17, which is not connected to the air pump 16 or the air box 306, is connected to the wire blowing cylinder 24.

[0032] The specific operation is as follows: During use, after the raw materials are fed into the crushing box 7, the crushing motor 20 drives the crushing shaft 18 to rotate in opposite directions within the crushing box 7 via the transmission wheel 19, crushing the raw materials. The guide plate 8 guides the raw materials while also reducing dust dispersion during crushing. After the crushed raw materials fall from the crushing box 7, they enter the mixing drum 21 through the feed inlet 22 for heating. The mixing rod 23, driven by the crushing motor 20 and the belt pulley transmission mechanism, mixes the materials and conveys them to the blowing drum 24. Pump 16 delivers high-speed air into the blown tube 24 through the air outlet pipe 17, blowing the molten material into fibers through the spinneret 25 and attaching it to the yarn substrate in the inlet tube 26, facilitating subsequent stretching into strands. The yarn passes between the guide rollers 304 and enters the rotating wheel 5. The twisting motor 4 drives the rotating wheel 5 to rotate, thus twisting the yarn. The guide rollers 304 prevent the yarn in the inlet tube 26 from twisting and tangling. The transmission between the crushing shaft 18 and the mixing rod 23 reduces the number of power sources and ensures the coordinated operation of the device. In summary, during use, this system reduces dust emission and ensures the coordinated operation of the equipment. When crushing raw materials, the air pump 16 extracts air from the recovery box 11, thereby drawing the dust generated during crushing in the crushing box 7 into the dust extraction cover 10 through the vent pipe 12, and then into the recovery box 11 through the vent pipe 12. This prevents dust from accumulating in the crushing box 7 and hindering crushing, and further reduces dust emission. After the dust enters the recovery box 11, the filter screen 15 intercepts it, preventing dust from entering the air pump 16 and causing it to malfunction. Under the combined action of the airflow impact and the elastic force of the vibration spring 14, the filter screen 15 can be repeatedly vibrated in the recycling bin 11, thereby shaking off the dust adhering to the filter screen 15 and pushing the dust in the recycling bin 11 into the return trough 13, so that the dust slides down along the return trough 13 and enters the mixing cylinder 21 from the feed inlet 22, completing the dust return and reducing resource waste. It also reduces the number of times the recycling bin 11 needs to be cleaned. In summary, during use, the dust generated during crushing can be collected and returned, reducing resource waste.

[0033] In summary, this adjustable tension chemical fiber hair strand stretching and stranding equipment operates as follows: First, the yarn substrate is threaded into the inlet drum 26 and then pulled out. The yarn substrate passes over the guide roller 304 away from the vertical plate 2 and under the guide roller 304 near the vertical plate 2 before being fed into the rotary wheel 5. Then, the raw material is fed into the crushing box 7. The crushing motor 20 drives the crushing shaft 18 to rotate in opposite directions within the crushing box 7 via the transmission wheel 19, crushing the raw material. The guide plate 8 guides the raw material while reducing dust dispersion during crushing. After being crushed, the raw material falls from the crushing box 7 and enters the mixing drum 21 through the feed inlet 22 for heating. The mixing rod 23 is driven by the crushing motor 20 and the belt pulley. Driven by the mechanism, the material is mixed and conveyed to the blowing drum 24. The air pump 16 sends air into the blowing drum 24 at high speed through the air outlet pipe 17, blowing the molten material into fibers through the spinneret 25 and attaching it to the filament substrate in the inlet drum 26, facilitating subsequent stretching into strands. The filament passes through the guide rollers 304 and enters the rotating wheel 5. The twisting motor 4 drives the rotating wheel 5 to rotate, thus twisting the filament. The guide rollers 304 prevent the filament in the inlet drum 26 from twisting and tangling. The transmission between the crushing shaft 18 and the mixing rod 23 reduces the number of power sources and ensures the coordinated operation of the device. When crushing the raw material, the air pump 16 can extract the air from the recovery box 11, thereby sending the powder through the air pipe 12. Dust generated during crushing in the crushing chamber 7 is drawn into the dust extraction cover 10 and then into the recovery chamber 11 through the vent pipe 12. This prevents dust accumulation in the crushing chamber 7 from hindering crushing and further reduces dust dispersion. After entering the recovery chamber 11, the filter screen 15 intercepts the dust, preventing it from entering the air pump 16 and causing it to malfunction. Under the combined action of the airflow impact and the elasticity of the vibration spring 14, the filter screen 15 vibrates repeatedly within the recovery chamber 11, shaking off the dust adhering to it and pushing the dust in the recovery chamber 11 into the return chute 13. The dust then slides down the return chute 13 and enters the mixing drum 21 through the feed inlet 22, completing the dust return process, reducing resource waste, and also reducing the need for cleaning the recovery chamber 11. After the yarn passes through the guide rollers 304, the limiting plate 303 monitors the pressure applied by the limiting block 305, thereby monitoring the yarn tension. When the yarn tension is too high, the control solenoid valve 311 increases the flow rate, increasing the airflow from the side of the slide plate 310 near the air outlet pipe 17 to the other side. This reduces the air pressure on the slide plate 310, allowing it to move towards the air outlet pipe 17 within the air box 306 under the action of the adjusting spring 312. This, in turn, drives the limiting block 305 via the slider 308, bringing the guide rollers 304 closer to the inlet drum 26, increasing the distance between the guide rollers 304, and reducing the tension on the synthetic fiber, preventing it from breaking due to excessive force. Conversely, when the yarn tension is too low...By reducing the flow rate of the solenoid valve 311, the air pressure on the slide plate 310 increases, causing it to move away from the air outlet pipe 17 within the air box 306. This reduces the distance between the guide rollers 304, thereby increasing the tension of the wire and straightening it. During processing, the sealing plate 309 can seal the side of the slide rail 307 located between the slide plate 310 and the air outlet pipe 17, preventing air leakage that would prevent the adjustment of the slide plate 310's position. The limiting plate 303 and the slide rail 307 can respectively restrict the limiting block 305 and the slider 308, preventing the slide plate 310 and guide rollers 304 from becoming misaligned and causing additional stress on the wire.

[0034] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An adjustable tension chemical fiber hair strand stretching and stranding device, characterized in that, The system includes a chassis (1) and an adjustment assembly (3). A vertical plate (2) is fixedly connected to one side of the chassis (1). The adjustment assembly (3) is located on one side of the vertical plate (2). The adjustment assembly (3) includes a support plate (301), a slide groove (302), a limiting plate (303), a guide roller (304), a limiting block (305), an air box (306), a slide rail (307), a slider (308), a sealing plate (309), a sliding plate (310), a solenoid valve (311), and an adjustment spring (312). A support plate (301) is symmetrically fixedly connected to one side of the vertical plate (2), and a slide groove (302) is provided on one side of the support plate (301). A limiting plate (303) is symmetrically fixedly connected to the side of the support plate (301) that is far apart from each other. Two guide rollers (304) are arranged between (301), and a limiting block (305) is engaged between the limiting plates (303). An air box (306) is fixedly connected above the limiting plates (303). Slide rails (307) are symmetrically opened on the front and rear sides of the air box (306), and sliders (308) are slidably connected in the slide rails (307). A sealing plate (309) is fixedly connected to one side of the sliders (308), and a sliding plate (310) is fixedly connected between the sliders (308). A solenoid valve (311) is fixedly connected to the middle of the sliding plate (310), and adjusting springs (312) are symmetrically fixedly connected to both sides of the sliding plate (310). The guide rollers (304) away from the upright plate (2) are connected to the support plate (304) through the slide groove (302). 301) Sliding connection, and the guide rollers (304) are all rotatably connected to the support plate (301). The limiting block (305) is slidably connected to the limiting plate (303), and the limiting block (305) is fixedly connected to the slider (308). A pressure sensor is provided at the lower part of the limiting plate (303). The slider (308) is engaged with the air box (306) through the slide rail (307), and the sealing plate (309) closes one side of the slide rail (307). The slide plate (310) is elastically connected to the air box (306) through the adjusting spring (312), and the slide plate (310) is slidably connected to the air box (306). A crossbeam (6) is fixedly connected to the other side of the chassis (1), and a crushing box (7) is fixedly connected to the middle of the crossbeam (6). The powder A guide plate (8) is symmetrically fixedly connected to the upper part of the crushing box (7), and a through groove (9) is symmetrically opened on both sides of the crushing box (7). A dust extraction cover (10) is fixedly connected to one side of the through groove (9). A recycling box (11) is fixedly connected to one side of the crossbeam (6), and a ventilation pipe (12) is symmetrically fixedly connected to both sides of the recycling box (11). A return trough (13) is fixedly connected to the bottom of the recycling box (11). The ventilation pipe (12) is connected to the dust extraction cover (10). A vibration spring (14) is symmetrically fixedly connected inside the recycling box (11), and a filter screen (15) is fixedly connected to the other end of the vibration spring (14). An air pump (16) is fixedly connected to the bottom of the recycling box (11), and an air outlet pipe (17) is fixedly connected to one side of the air pump (16).The air outlet pipe (17) is T-shaped, and one end of the air outlet pipe (17) is connected to the air box (306). Two crushing shafts (18) are rotatably connected inside the crushing box (7), and a transmission wheel (19) is fixedly connected to one end of the crushing shaft (18). The other end of the front crushing shaft (18) is fixedly connected to the crushing motor (20). The transmission wheels (19) mesh with each other. A mixing cylinder (21) is provided below the crossbeam (6), and a feed inlet (22) is provided above the mixing cylinder (21). A mixing rod (23) is rotatably connected inside the mixing cylinder (21). The mixing rod (23) is connected to the front crushing shaft (18) via a belt and pulley to form a transmission structure. The lower end of the crushing box (7) and the lower end of the return trough (13) are both located above the feed inlet (22). The blades on the surface of the mixing rod (23) are spiral-shaped. A blower (24) is provided on one side of the mixing cylinder (21), and a spinneret (25) is fixedly connected inside the blower (24). A wire inlet (26) is provided on one side of the blower (24). The other end of the air outlet pipe (17), which is not connected to the air pump (16) or the air box (306), is connected to the blower (24).

2. The adjustable tension chemical fiber hair strand stretching and stranding device according to claim 1, characterized in that, The upright plate (2) is fixedly connected to the middle of the twisting motor (4), and the upper part of the upright plate (2) is rotatably connected to the wheel (5). The wheel (5) forms a transmission structure with the twisting motor (4) through the belt and pulley.

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