A polytetrafluoroethylene sewing thread pulling device with a multi-stage guide structure

Abstract

The utility model relates to the technical field of polytetrafluoroethylene sewing thread, specifically a polytetrafluoroethylene sewing thread traction device with multistage guide structure, including frame, guide wheel, guide wheel no.

Description

Technical Field

[0001] This utility model relates to the field of polytetrafluoroethylene sewing thread technology, specifically to a polytetrafluoroethylene sewing thread traction device with a multi-stage guiding structure. Background Technology

[0002] Polytetrafluoroethylene (PTFE) sewing thread is a special sewing thread made from PTFE resin through monofilament twisting or composite spinning processes. It has high temperature resistance and corrosion resistance, and its coefficient of friction is low. It is widely used in industrial, medical, and construction fields. During the production process, based on the characteristics of PTFE sewing thread material and production requirements, traction equipment is needed to pull the PTFE sewing thread. Through traction, tension can be controlled, uniformity can be ensured, and production efficiency and product quality can be improved.

[0003] However, existing PTFE sewing thread traction devices typically use a single-stage guide roller to pull the PTFE sewing thread. PTFE sewing thread has a low coefficient of friction, making it prone to slippage, which can lead to thread tangling or breakage. Furthermore, these devices lack the function of using an axial fan and carbon fiber electric heating tube to dry the PTFE sewing thread from its lower end, resulting in poor traction performance. Therefore, we propose a PTFE sewing thread traction device with a multi-stage guide structure. Utility Model Content

[0004] To address the problems in existing technologies, this utility model provides a PTFE sewing thread traction device with a multi-stage guiding structure. Multiple guide rollers simultaneously traction the PTFE sewing thread, preventing thread tangling or breakage. Furthermore, it utilizes an axial fan and carbon fiber electric heating tube to dry the PTFE sewing thread from its lower end, removing residual moisture. The dried thread has a more stable surface friction coefficient, and the traction device can more precisely control the tension, thereby effectively improving the traction effect.

[0005] The technical solution adopted by this utility model to solve its technical problem is a polytetrafluoroethylene sewing thread traction device with a multi-stage guiding structure, including a frame, a first guide wheel, a second guide wheel, a third guide wheel, a fourth guide wheel, an axial flow fan, and a carbon fiber electric heating tube. The first guide wheel is installed at one end inside the frame. The second guide wheel is located at the lower end of the frame, on the side of the first guide wheel. The fourth guide wheel is installed at the other end inside the frame. The third guide wheel is located on the side of the fourth guide wheel close to the first guide wheel. A traction wheel is located at one end of the frame. Polytetrafluoroethylene sewing thread is provided on the outer side of the first, second, third, and fourth guide wheels and the traction wheel. A mounting plate is fixed to the lower end of the frame. Both ends of the bottom of the mounting plate are provided with mounting shells. Both sides of the mounting shells are connected to the frame by fixing rods. An axial flow fan is installed inside the mounting shell. A mounting groove is opened inside the mounting plate. A carbon fiber electric heating tube is fixed inside the mounting groove by clamps.

[0006] By adopting the above technical solution, this novel PTFE sewing thread traction device uses multi-stage guide rollers to simultaneously traction the PTFE sewing thread, avoiding thread tangling or breakage. Furthermore, it utilizes an axial fan and carbon fiber electric heating tube to dry the PTFE sewing thread from its lower end, removing residual moisture. The dried thread has a more stable surface friction coefficient, allowing the traction device to more precisely control tension, thereby effectively improving the traction effect.

[0007] Specifically, a first baffle and a second baffle are respectively installed on both sides of the frame by screws. The upper part of the first baffle and the second baffle are evenly provided with thread holes corresponding to polytetrafluoroethylene sewing thread.

[0008] Specifically, a stepper motor is provided on one side of the traction wheel, an L-shaped mounting base is provided at the lower end of the stepper motor, a support plate is fixed on one side of the top of the L-shaped mounting base, one end of the traction wheel is connected to the output end of the stepper motor, and the other end of the traction wheel is connected to the support plate through a bearing.

[0009] Specifically, a wire mesh is bolted to the top of the mounting plate.

[0010] By adopting the above technical solution, the metal wire mesh can mainly play a role in physical isolation, preventing the polytetrafluoroethylene sewing thread from directly contacting the carbon fiber electric heating tube and causing local overheating.

[0011] Specifically, positioning plates are connected to both sides of the frame.

[0012] Specifically, a central shaft is embedded inside the first guide wheel, and a second bearing is provided at both ends of the central shaft.

[0013] By adopting the above technical solution, the No. 2 guide wheel, No. 3 guide wheel, No. 4 guide wheel and No. 1 guide wheel have the same structure. They are all connected to the inner wall of the frame through the central shaft and the No. 2 bearing, and can rotate smoothly.

[0014] The beneficial effects of this utility model are: (1) The PTFE sewing thread traction device with multi-stage guiding structure described in this utility model can pull the PTFE sewing thread with the traction wheel. The thread passage holes on the first and second baffles can guide and limit the PTFE sewing thread when it enters or leaves the frame. With the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel, the stability of the PTFE sewing thread when it moves can be further improved.

[0015] (2) The polytetrafluoroethylene sewing thread traction device with multi-stage guiding structure described in this utility model can dry the polytetrafluoroethylene sewing thread with carbon fiber electric heating tube and axial flow fan. The surface friction coefficient of the dried polytetrafluoroethylene sewing thread is more stable, and the traction device can control the tension more accurately, avoiding tension fluctuations caused by moisture, which is conducive to stable traction of polytetrafluoroethylene sewing thread. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the carbon fiber electric heating tube structure of this utility model; Figure 4 This is a schematic diagram of the No. 1 guide wheel structure of this utility model.

[0018] In the diagram: 1. Frame; 2. Positioning plate; 3. Guide wheel No. 1; 4. Guide wheel No. 2; 5. Guide wheel No. 3; 6. Guide wheel No. 4; 7. Traction wheel; 8. Stepper motor; 9. PTFE sewing thread; 10. L-shaped mounting base; 11. Support plate; 12. Mounting plate; 13. Mounting shell; 14. Axial flow fan; 15. Fixing rod; 16. Carbon fiber electric heating tube; 17. Metal wire mesh; 18. Central shaft; 19. Bearing No. 1; 20. Baffle No. 1; 21. Baffle No. 2; 22. Thread hole; 23. Mounting groove; 24. Bearing No. 2. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] To simultaneously pull PTFE sewing thread using multi-stage guide rollers, and to simultaneously dry the PTFE sewing thread using an axial flow fan and carbon fiber electric heating tube, thereby improving the pulling effect, such as... Figure 1-4As shown, the PTFE sewing thread traction device with a multi-stage guiding structure of this utility model includes a frame 1, a first guide wheel 3, a second guide wheel 4, a third guide wheel 5, a fourth guide wheel 6, an axial flow fan 14, and a carbon fiber electric heating tube 16. The first guide wheel 3 is installed at one end inside the frame 1. The second guide wheel 4 is located at the lower end of the frame 1, on the side of the first guide wheel 3. The fourth guide wheel 6 is installed at the other end inside the frame 1. The third guide wheel 5 is located on the side of the fourth guide wheel 6 near the first guide wheel 3. A traction wheel 7 is provided at one end of the frame 1. PTFE sewing thread 9 is provided on the outer side of the first guide wheel 3, the second guide wheel 4, the third guide wheel 5, the fourth guide wheel 6, and the traction wheel 7. The lower end of the frame 1 is fixed with a mounting plate 12. Both ends of the bottom of the mounting plate 12 are provided with mounting shells 13. Both sides of the mounting shells 13 are connected to the frame 1 by fixing rods 15. An axial flow fan 14 is installed inside the mounting shells 13. The mounting plate 12 has a mounting groove 23 inside. A carbon fiber electric heating tube 16 is fixed inside the mounting groove 23 by clamps.

[0021] During use, the traction wheel 7 can pull the polytetrafluoroethylene sewing thread 9, and the thread hole 22 on the first baffle 20 and the second baffle 21 can guide and limit the polytetrafluoroethylene sewing thread 9 when it enters or leaves the frame 1. In conjunction with the first guide wheel 3, the second guide wheel 4, the third guide wheel 5 and the fourth guide wheel 6, the stability of the polytetrafluoroethylene sewing thread 9 when it moves can be further improved. The carbon fiber electric heating tube 16, in conjunction with the axial flow fan 14, can dry the polytetrafluoroethylene sewing thread 9. The surface friction coefficient of the dried polytetrafluoroethylene sewing thread 9 is more stable, and the traction device can control the tension more precisely, avoiding tension fluctuations caused by moisture, which is beneficial for stable traction of the polytetrafluoroethylene sewing thread 9.

[0022] For example, such as Figure 1 As shown, a first baffle 20 and a second baffle 21 are respectively installed on both sides of the frame 1 by screws. The upper ends of the first baffle 20 and the second baffle 21 are evenly provided with thread holes 22 corresponding to the polytetrafluoroethylene sewing thread 9.

[0023] In use, the movement of the polytetrafluoroethylene sewing thread can be further guided and limited through the thread holes 22 on the support plate 11 and the mounting plate 12.

[0024] For example, such as Figure 1As shown, a stepper motor 8 is provided on one side of the traction wheel 7, and an L-shaped mounting base 10 is provided at the lower end of the stepper motor 8. A support plate 11 is fixed on one side of the top of the L-shaped mounting base 10. One end of the traction wheel 7 is connected to the output end of the stepper motor 8, and the other end of the traction wheel 7 is connected to the support plate 11 through a bearing 19.

[0025] In use, the L-shaped mounting base 10 and the support plate 11 can support the stepper motor 8 and the traction wheel 7, respectively.

[0026] For example, such as Figure 3 As shown, a metal wire mesh 17 is bolted to the top of the mounting plate 12.

[0027] When in use, the metal wire mesh 17 mainly serves as a physical barrier to prevent the polytetrafluoroethylene sewing thread from directly contacting the carbon fiber electric heating tube 16 and causing localized overheating.

[0028] For example, such as Figure 1 , Figure 2 As shown, positioning plates 2 are connected to both sides of the frame 1.

[0029] In use, the positioning plate 2 facilitates the connection of this new traction device to the workbench using screws or other connecting parts.

[0030] For example, such as Figure 4 As shown, a central shaft 18 is embedded inside the first guide wheel 3, and a second bearing 24 is provided at both ends of the central shaft 18.

[0031] In use, the second guide wheel 4, the third guide wheel 5, the fourth guide wheel 6 and the first guide wheel 3 have the same structure. They are all connected to the inner wall of the frame 1 through the central shaft 18 and the second bearing 24, and can rotate smoothly.

[0032] When using this utility model, the operator holds one end of the polytetrafluoroethylene sewing thread 9 and operates the polytetrafluoroethylene sewing thread 9 sequentially. First, it passes through the thread hole 22 of the first baffle 20, then it goes around the top of the first guide wheel 3, the bottom of the second guide wheel 4, the top of the third guide wheel 5 and the top of the fourth guide wheel 6, and then passes through the thread hole 22 of the second baffle 21. Finally, the end of the polytetrafluoroethylene sewing thread 9 is connected to the outside of the traction wheel 7, so that the movement path of the polytetrafluoroethylene sewing thread 9 can be completely set. Furthermore, after being driven by the stepper motor 8, the traction wheel 7 can pull the polytetrafluoroethylene sewing thread 9. The thread holes 22 on the first baffle 20 and the second baffle 21 can guide and limit the polytetrafluoroethylene sewing thread 9 when it enters or leaves the frame 1. Furthermore, through the cooperation of guide wheel 3, guide wheel 4, guide wheel 5 and guide wheel 6, the polytetrafluoroethylene sewing thread 9 can be guided and supported, and the movement path of the polytetrafluoroethylene sewing thread 9 can be optimized to ensure that the polytetrafluoroethylene sewing thread 9 moves along the predetermined path, thereby achieving the purpose of stable traction of the polytetrafluoroethylene sewing thread 9. Furthermore, the carbon fiber electric heating tube 16 generates heat when energized, and the axial fan 14 blows the heated air toward the polytetrafluoroethylene sewing thread 9, accelerating the airflow around the polytetrafluoroethylene sewing thread 9, thereby removing moisture from the polytetrafluoroethylene sewing thread 9 and achieving the purpose of drying. The surface friction coefficient of the dried polytetrafluoroethylene sewing thread 9 is more stable, and the traction device can control the tension more precisely, avoiding tension fluctuations caused by moisture, which is conducive to stable traction of the polytetrafluoroethylene sewing thread 9.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A polytetrafluoroethylene sewing thread traction device with a multi-stage guiding structure, characterized in that, Includes a frame (1), a first guide wheel (3), a second guide wheel (4), a third guide wheel (5), a fourth guide wheel (6), an axial flow fan (14), and a carbon fiber electric heating tube (16). The first guide wheel (3) is installed at one end inside the frame (1). The second guide wheel (4) is located at the lower end of the frame (1) on the side of the first guide wheel (3). The fourth guide wheel (6) is installed at the other end inside the frame (1). The third guide wheel (5) is located on the side of the fourth guide wheel (6) close to the first guide wheel (3). A traction wheel (7) is provided at one end of the frame (1). Polytetrafluoroethylene sewing thread (9) is provided on the outer side of the first guide wheel (3), the second guide wheel (4), the third guide wheel (5), the fourth guide wheel (6), and the traction wheel (7). The lower end of the frame (1) is fixed with a mounting plate (12). Both ends of the bottom of the mounting plate (12) are provided with mounting shells (13). Both sides of the mounting shells (13) are connected to the frame (1) by fixing rods (15). An axial flow fan (14) is installed inside the mounting shells (13). An installation groove (23) is opened inside the mounting plate (12). A carbon fiber electric heating tube (16) is fixed inside the installation groove (23) by clamps.

2. The polytetrafluoroethylene sewing thread traction device with a multi-stage guiding structure according to claim 1, characterized in that, The frame (1) has a first baffle (20) and a second baffle (21) installed on both sides by screws. The upper ends of the first baffle (20) and the second baffle (21) are evenly provided with thread holes (22) corresponding to the polytetrafluoroethylene sewing thread (9).

3. The polytetrafluoroethylene sewing thread traction device with a multi-stage guiding structure according to claim 1, characterized in that, A stepper motor (8) is provided on one side of the traction wheel (7). An L-shaped mounting base (10) is provided at the lower end of the stepper motor (8). A support plate (11) is fixed on one side of the top of the L-shaped mounting base (10). One end of the traction wheel (7) is connected to the output end of the stepper motor (8). The other end of the traction wheel (7) is connected to the support plate (11) through a bearing (19).

4. The polytetrafluoroethylene sewing thread traction device with a multi-stage guiding structure according to claim 1, characterized in that, The top of the mounting plate (12) is bolted with a wire mesh (17).

5. A polytetrafluoroethylene sewing thread traction device with a multi-stage guiding structure according to claim 1, characterized in that, Positioning plates (2) are connected to both sides of the frame (1).

6. The polytetrafluoroethylene sewing thread traction device with a multi-stage guiding structure according to claim 1, characterized in that, The first guide wheel (3) is inlaid with a central shaft (18), and the two ends of the central shaft (18) are provided with second bearings (24).

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