Abrasion resistance detection equipment for polyamide yarns

Abstract

The invention discloses nylon yarn wear resistance detection equipment, and relates to the technical field of wear resistance detection equipment.The nylon yarn wear resistance detection equipment comprises a workbench, a back plate is fixedly installed at the top of the workbench, a rotating disc is rotatably installed on the surface of the back plate, and a fixing shaft is fixedly installed on the side, away from the back plate, of the rotating disc; a friction column is slidably mounted on the circumferential face of the fixing shaft, a sliding column is slidably mounted on the side, close to the rotating disc, of the back plate, a weight bearing block is fixedly mounted on the side, away from the rotating disc, of the sliding column, a fixing device is further arranged on the surface of the back plate, and the circular plate rotates to drive the sliding block to move, so that the clamping plates clamp nylon yarn. Instability and errors caused by manual operation are avoided, the experiment efficiency is improved through the automatic clamping process, and the problem that fibers are loosened or clamping is not firm due to improper operation is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wear resistance testing equipment, and specifically to a wear resistance testing equipment for nylon filaments. Background Art

[0002] Nylon filament is a kind of textile fabric, with various types such as monofilament, ply yarn, and special yarn. Compared with the luster of real silk fabric, the luster of nylon filament fabric is relatively poor, giving a feeling like being coated with a layer of wax. At the same time, when rubbing back and forth by hand, the friction feeling between the fabrics can be felt.

[0003] The patent with the patent announcement number CN215004664U relates to the technical field of wear resistance testing equipment, including: a base, a wear resistance testing component is arranged on the top of the base, winding and unwinding components are arranged on both sides of the top of the base, and two auxiliary testing components are arranged on the top of the base. The two auxiliary testing components are located on both sides of the wear resistance testing component. Among them, the wear resistance testing component includes two fixing plates fixed on the top of the base. The wear resistance testing equipment for nylon filaments provided by this patent, through the setting of the wear resistance testing component, not only facilitates the wear resistance testing of nylon filaments, but also can conduct wear resistance testing on fabrics woven from nylon filaments. Moreover, through the combined setting of the wear resistance testing component and the auxiliary testing component, the front and back sides of the fabric woven from nylon filaments can be simultaneously detected, further improving the comprehensiveness of the detection, eliminating the need for repeated detection, and improving the detection efficiency.

[0004] The above patent further improves the comprehensiveness of the detection, eliminates the need for repeated detection, and improves the detection efficiency. However, the push rod manually controls the clamping, which requires manual operation. The clamping force needs to be repeatedly adjusted during each detection, increasing the operation time and working intensity. If multiple samples need to be tested, the efficiency of manual operation is low, which may affect the overall experimental progress. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a wear resistance testing equipment for nylon filaments, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A wear resistance testing equipment for nylon filaments, including a workbench, a backboard is fixedly installed on the top of the workbench, a turntable is rotatably installed on the surface of the backboard, a fixed shaft is fixedly installed on the side of the turntable away from the backboard, a friction column is slidably installed on the circumferential surface of the fixed shaft, a sliding column is slidably installed on the side of the backboard close to the turntable, a weight block is fixedly installed on the side of the sliding column away from the turntable, and a fixing device is further provided on the surface of the backboard; The fixing device includes a circular plate, a clamping plate, a sliding block and a fixing block. The circular plate is rotatably installed on the side of the sliding column away from the back plate. A sliding groove is formed on the surface of the circular plate. The clamping plate is slidably installed on the inner wall of the sliding groove. The sliding block is fixedly installed on the side of the clamping plate close to the sliding column. The fixing block is fixedly installed on the circumferential surface of the sliding column. A sliding groove is formed on the circumferential surface of the sliding column. The shape of the sliding groove matches that of the sliding block. The rotation of the circular plate drives the movement of the sliding block, thereby prompting the clamping plate to clamp the nylon filament, avoiding the instability and error of manual operation. This automatic clamping process not only improves the experimental efficiency but also avoids the problems of fiber relaxation or insecure clamping caused by improper operation.

[0007] According to the above technical solution, the fixing device further includes a sliding frame, a sliding plate, a sliding key, a square frame and a round rod. The sliding frame is slidably installed on the side of the back plate close to the turntable. The sliding plate is slidably installed on the side of the back plate close to the turntable. The sliding key is slidably installed on the side of the back plate close to the sliding plate. The square frame is fixedly installed on the circumferential surface of the sliding column. The round rod is slidably installed on the inner wall of the square frame, so that the tension applied to the nylon filament remains unchanged after the nylon filament is tightened. When the sliding key limits the sliding column, the tension of the nylon filament can be kept constant, which helps to ensure that the tightened state of the nylon filament is not affected by external factors, thereby avoiding the risk of uneven or excessive tension. The stable tension can effectively avoid the breakage or deformation of the fiber.

[0008] According to the above technical solution, a circular hole is formed on the side of the circular plate close to the round rod. The shape of the round rod matches that of the circular hole. The side of the sliding plate close to the sliding frame is set as an inclined surface. The inclined surface of the sliding plate is provided to facilitate the movement of the sliding plate when the sliding frame moves. A slot is formed on the side of the sliding column close to the sliding key. The shape of the sliding key matches that of the slot. The sides of the sliding key and the sliding plate close to each other are set as inclined surfaces. The inclined surfaces of the sliding key and the sliding plate are provided to facilitate the movement of the sliding key when the sliding plate moves. The sides of the sliding block and the fixing block close to each other are set as inclined surfaces. The inclined surfaces of the sliding key and the sliding plate are provided to facilitate the movement of the sliding block along the inclined surface of the fixing block. The round rod slidably penetrates the surface of the back plate. A first spring is provided between the square frame and the round rod. The first spring is provided to drive the movement of the round rod after the sliding block contacts and blocks the round rod. A second spring is provided between the sliding column and the back plate. The second spring is provided to drive the sliding column back to its original position after the weight block is separated from the sliding column.

[0009] According to the above technical solution, a protection device for protecting the friction column and a quick-release device for replacing the friction column are further provided on the surface of the back plate. The protection device includes a fixed rod, a sliding rod, a telescopic buckle, a protective shell and a rotating buckle. The fixed rod is fixedly installed on the side of the sliding column close to the turntable. The sliding rod is slidably installed inside the fixed rod. The telescopic buckle is slidably installed inside the sliding rod. The telescopic buckle slidably penetrates the inner wall of the fixed rod. The protective shell is fixedly installed on the side of the sliding rod close to the friction column. The rotating buckle slides on the inner wall of the fixed shaft away from the back plate. An adjustment groove is provided on the side of the friction column close to the rotating buckle. The shape of the rotating buckle matches the adjustment groove. After long-term contact with the outside world, dust, dirt or other tiny particles in the air may also contaminate the surface of the friction column. These particles may adhere to the contact surface between the friction column and the nylon wire. If contaminants accumulate on the surface of the friction column, it may increase the friction force or cause uneven wear, resulting in the deviation of the detection result from the actual situation.

[0010] According to the above technical solution, the protection device further includes a push rod, a key and a support rod. The push rod is fixedly installed on the side of the fixed rod close to the friction column. The key is slidably installed on the side of the turntable close to the friction column. The support rod is rotatably installed on the side of the turntable away from the back plate. The key slidably penetrates the outer wall of the support rod. The rotation of the support rod will increase the support strength of the friction column, making it more stable and firm during the working process. This mechanism may be used in some devices that require increased support force or stability to improve the stability and performance of the overall system.

[0011] According to the above technical solution, a third spring is provided between the fixed rod and the sliding rod. The third spring is provided to drive the sliding rod to move when the limit between the sliding rod and the fixed rod is released. A fourth spring is provided between the key and the turntable. The fourth spring is provided to drive the key to move when the push rod releases the thrust on the key. A first torsion spring is provided between the support rod and the turntable. The first torsion spring is provided to drive the support rod to rotate after the limit of the support rod is released.

[0012] According to the above technical solution, the quick-release device includes a stop bar, a pressure bar, a rotating key, a rotating rod, a fixed frame and a sliding insertion key. The stop bar is fixedly installed on the side of the protective shell away from the friction column. The pressure bar is slidably installed on the side of the turntable close to the friction column. The rotating key is rotatably installed on the side of the turntable close to the friction column. The rotating key slidably penetrates the outer wall of the fixed shaft. The rotating rod is fixedly installed on the outer wall of the circumferential surface of the rotating key. The fixed frame is fixedly installed on the side of the turntable close to the friction column. The sliding insertion key is slidably installed on the inner wall of the fixed frame. A fixed groove is formed on the side of the pressure bar close to the sliding insertion key. The shape of the sliding insertion key matches that of the fixed groove. When the friction column wears to the extent that it cannot work properly, by releasing the limit of the rotating key on the fixed shaft, the friction column can be easily disassembled and replaced. This design makes the replacement process relatively simple, ensures the stability and safety of the equipment, reduces the maintenance and downtime, and improves the operating efficiency of the equipment.

[0013] According to the above technical solution, the quick-release device further includes a connecting rod and a scraper. One end of the connecting rod is rotatably installed at the bottom of the protective shell. The scraper is rotatably installed at the other end of the connecting rod. The surface of the scraper contacts the surface of the friction column. The scraper helps to maintain the original friction performance of the friction column, which is crucial for maintaining long-term stable friction performance. This can increase the friction force between the friction column and the nylon filament, improve the friction effect, and improve the working efficiency.

[0014] According to the above technical solution, a second torsion spring is provided between the rotating key and the turntable. The second torsion spring is provided to drive the rotating key back to its original position when the pressure on the rotating rod by the pressure bar is released. A fifth spring is provided between the pressure bar and the turntable. The fifth spring is provided to drive the pressure bar back to its original position after the sliding insertion key releases the limit on the pressure bar. The side of the sliding insertion key close to the pressure bar is set as an inclined surface. The inclined surface of the sliding insertion key is provided to avoid blocking the pressure bar when the pressure bar moves. A sixth spring is provided between the sliding insertion key and the fixed frame. The sixth spring is provided to push the sliding insertion key to move and insert into the fixed groove to limit the pressure bar after the pressure bar moves.

[0015] The present invention provides a wear resistance detection device for nylon filaments. It has the following beneficial effects: (1) In this invention, when the sliding block moves, the limit on the round rod is released. The round rod will be driven by the first spring to insert into the inner wall of the round hole. Then the round rod will limit the round plate, so that the clamping plate will not loosen when clamping the nylon filament. The rotation of the round plate drives the sliding block to move, thereby promoting the clamping plate to clamp the nylon filament. This avoids the instability and error of manual operation. This automatic clamping process not only improves the experimental efficiency but also avoids problems such as fiber relaxation or insecure clamping caused by improper operation.

[0016] (2) In this invention, when the sliding rod moves, it drives the protective shell to move and wrap the outer wall of the friction column, preventing the friction column from being in contact with the outside world for a long time. Dust, dirt or other tiny particles in the air may also contaminate the surface of the friction column. These particles may adhere to the contact surface between the friction column and the nylon filament. If contaminants accumulate on the surface of the friction column, it may increase the friction force or cause uneven wear, resulting in the test results deviating from the actual situation.

[0017] (3) In this invention, when the clamping key moves, the limit on the support rod is released. Once the limit on the support rod is released, the first torsion spring drives the support rod to rotate towards the friction column, strengthening the support strength of the friction column. The rotation of the support rod improves the support strength for the friction column, making it more stable and firm during operation. This mechanism may be used in some devices that require increased support force or stability to improve the stability and performance of the overall system.

[0018] (4) In this invention, when the scraper moves, it rubs the surface of the friction column, making the surface of the friction column rough. By cleaning the impurities and smooth layer on the surface of the friction column, the scraper helps to maintain the original friction performance of the friction column, which is crucial for maintaining long-term stable friction performance. This can increase the friction force between the friction column and the nylon filament, improve the friction effect, and enhance the working efficiency.

[0019] (5) In this invention, when the fixed shaft is removed, the friction column can be replaced. When the friction column wears to the extent that it cannot work properly, by releasing the limit of the rotating key on the fixed shaft, the friction column can be easily disassembled and replaced. This design makes the replacement process relatively simple, ensures the stability and safety of the equipment, reduces the maintenance and downtime, and improves the operating efficiency of the equipment. Description of the Drawings

[0020] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the position structure of the sliding frame and the sliding plate of the present invention; Figure 3 Schematic diagram of the position structure of the sliding block and the fixed frame of the present invention; Figure 4 Schematic diagram of the position structure of the push rod and the clamping key of the present invention; Figure 5 Schematic diagram of the position structure of the connecting rod and the scraper of the present invention; Figure 6 Schematic diagram of the position structure of the fixed rod and the sliding rod of the present invention; Figure 7 Schematic diagram of the position structure of the fixed frame and the sliding insertion key of the present invention.

[0021] In the figure: 1, workbench; 2, back plate; 3, load block; 4, turntable; 5, fixed shaft; 6, friction column; 7, sliding column; 8, sliding frame; 9, sliding plate; 10, sliding key; 11, circular plate; 12, clamping plate; 13, sliding block; 14, fixed block; 15, square frame; 16, round bar; 21, fixed rod; 22, sliding rod; 23, telescopic buckle; 24, protective shell; 25, rotating buckle; 26, push rod; 27, clamping key; 28, support rod; 31, connecting rod; 32, scraper; 33, stop bar; 34, pressing rod; 35, rotating key; 36, rotating rod; 37, fixed frame; 38, sliding insertion key. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-7 , an embodiment of the present invention is: a wear resistance detection device for nylon filaments, including a workbench 1, a back plate 2 is fixedly installed on the top of the workbench 1, a turntable 4 is rotatably installed on the surface of the back plate 2, a fixed shaft 5 is fixedly installed on the side of the turntable 4 away from the back plate 2, a friction column 6 is slidably installed on the circumferential surface of the fixed shaft 5, a sliding column 7 is slidably installed on the side of the back plate 2 close to the turntable 4, a load block 3 is fixedly installed on the side of the sliding column 7 away from the turntable 4, and a fixing device is further provided on the surface of the back plate 2; The fixing device includes a circular plate 11, a clamping plate 12, a sliding block 13 and a fixed block 14. The circular plate 11 is rotatably installed on the side of the sliding column 7 away from the back plate 2. A sliding groove is formed on the surface of the circular plate 11. The clamping plate 12 is slidably installed on the inner wall of the sliding groove. The sliding block 13 is fixedly installed on the side of the clamping plate 12 close to the sliding column 7. The fixed block 14 is fixedly installed on the circumferential surface of the sliding column 7. A sliding groove is formed on the circumferential surface of the sliding column 7, and the shape of the sliding groove matches that of the sliding block 13. The rotation of the circular plate 11 drives the sliding block 13 to move, thereby prompting the clamping plate 12 to clamp the nylon filament, avoiding the instability and error of manual operation. This automatic clamping process not only improves the experimental efficiency but also avoids problems such as fiber relaxation or insecure clamping caused by improper operation.

[0024] The fixing device further includes a sliding frame 8, a sliding plate 9, a sliding key 10, a square frame 15 and a round rod 16. The sliding frame 8 is slidably mounted on one side of the back plate 2 close to the turntable 4. The sliding plate 9 is slidably mounted on one side of the back plate 2 close to the turntable 4. The sliding key 10 is slidably mounted on one side of the back plate 2 close to the sliding plate 9. The square frame 15 is fixedly mounted on the circumferential surface of the sliding column 7. The round rod 16 is slidably mounted on the inner wall of the square frame 15, so that the tension applied to the nylon wire remains unchanged after the nylon wire is tightened. When the sliding key 10 limits the sliding column 7, the tension of the nylon wire can be kept constant, which helps to ensure that the tightened state of the nylon wire is not affected by external factors, thus avoiding the risk of uneven or excessive tension. The stable tension can effectively avoid the fracture or deformation of the fiber.

[0025] A circular hole is provided on one side of the circular plate 11 close to the round rod 16, and the outer shape of the round rod 16 matches the circular hole. One side of the sliding plate 9 close to the sliding frame 8 is set as an inclined surface. The inclined surface of the sliding plate 9 is provided to facilitate the movement of the sliding plate 9 when the sliding frame 8 moves. A slot is provided on one side of the sliding column 7 close to the sliding key 10, and the outer shape of the sliding key 10 matches the slot. One side of the sliding key 10 and the sliding plate 9 close to each other is set as an inclined surface. The inclined surfaces of the sliding key 10 and the sliding plate 9 are provided to facilitate the movement of the sliding key 10 when the sliding plate 9 moves. One side of the sliding block 13 and the fixed block 14 close to each other is set as an inclined surface. The inclined surfaces of the sliding key 10 and the sliding plate 9 are provided to facilitate the movement of the sliding block 13 along the inclined surface of the fixed block 14. The round rod 16 slidably penetrates the surface of the back plate 2. A first spring is provided between the square frame 15 and the round rod 16. The first spring is provided to drive the round rod 16 to move after the sliding block 13 contacts and blocks the round rod 16. A second spring is provided between the sliding column 7 and the back plate 2. The second spring is provided to drive the sliding column 7 back to its original position after the load-bearing block 3 is separated from the sliding column 7.

[0026] When this embodiment is in operation: When it is necessary to detect the abrasion resistance of nylon filaments, the nylon filaments need to be fixed and continuously stressed and pulled to make them taut, and then the surface of the nylon filaments is rubbed by the friction column 6 to detect their abrasion resistance. When it is necessary to detect the abrasion resistance of nylon filaments, the nylon filaments need to be placed between the clamping plates 12. After the placement is completed, the circular plate 11 is rotated. The rotation of the circular plate 11 will drive the sliding block 13 to move. The movement of the sliding block 13 will contact the inclined surface of the fixed block 14. Then, the sliding block 13 moves along the inclined surface of the fixed block 14 so that the sliding block 13 slides into the inside of the chute. The sliding of the sliding block 13 will drive the clamping plate 12 to move, and the clamping plate 12 moves to clamp the nylon filaments. The rotation of the circular plate 11 will drive the circular hole to move. The movement of the sliding block 13 will release the limit on the round rod 16. The round rod 16 will be driven by the first spring to insert into the inner wall of the circular hole. Then, the round rod 16 will limit the circular plate 11, so that the clamping plate 12 will not loosen when fixing the nylon filaments. The rotation of the circular plate 11 drives the sliding block 13 to move, thereby prompting the clamping plate 12 to clamp the nylon filaments, avoiding the instability and errors of manual operation. This automatic clamping process not only improves the experimental efficiency but also avoids the problems of fiber relaxation or insecure clamping caused by improper operation. When the round rod 16 moves, it will lose contact with the inner wall of the back plate 2. Then, the movement of the round rod 16 will release the limit on the sliding column 7. Then, the sliding column 7 will be driven by the weight block 3 to slide away from the friction column 6. The sliding of the sliding column 7 will drive the circular plate 11 to move. The movement of the circular plate 11 will drive the clamping plate 12 to move. The movement of the clamping plate 12 will pull the nylon filaments to make the surface of the nylon filaments taut. When the nylon filaments become taut, they will push the sliding frame 8 upward. The upward movement of the sliding frame 8 will contact the inclined surface of the sliding plate 9. Then, the sliding frame 8 will push the sliding plate 9 to slide in the direction of the sliding key 10. The movement of the sliding plate 9 will contact the inclined surface of the sliding key 10. Then, the sliding key 10 will be pushed by the sliding plate 9 to slide downward. The downward sliding of the sliding key 10 will contact the inner wall of the slot. Then, the sliding key 10 will limit the sliding column 7, so that the tension applied to the nylon filaments remains unchanged after the nylon filaments reach tautness. When the sliding key 10 limits the sliding column 7, the tension of the nylon filaments is kept constant. This helps to ensure that the taut state of the nylon filaments is not affected by external factors, thus avoiding the risk of uneven or excessive tension. The stable tension can effectively avoid the breakage or deformation of the fibers.

[0027] Please refer to Figures 1-7, on the basis of the above embodiments, in another embodiment of the present invention, a protection device for protecting the friction column 6 and a quick-release device for replacing the friction column 6 are further provided on the surface of the back plate 2. The protection device includes a fixed rod 21, a sliding rod 22, a telescopic buckle 23, a protective shell 24, and a rotating buckle 25. The fixed rod 21 is fixedly installed on the side of the sliding column 7 close to the turntable 4. The sliding rod 22 is slidably installed inside the fixed rod 21. The telescopic buckle 23 is slidably installed inside the sliding rod 22. The telescopic buckle 23 slidably penetrates the inner wall of the fixed rod 21. The protective shell 24 is fixedly installed on the side of the sliding rod 22 close to the friction column 6. The rotating buckle 25 slides on the inner wall of the fixed shaft 5 away from the back plate 2. An adjustment groove is provided on the side of the friction column 6 close to the rotating buckle 25. The shape of the rotating buckle 25 matches the adjustment groove. After long-term contact with the outside world, dust, dirt, or other tiny particulate matters in the air may also contaminate the surface of the friction column 6. These particulate matters may adhere to the contact surface between the friction column 6 and the nylon filament. If contaminants accumulate on the surface of the friction column 6, it may increase the friction force or cause uneven wear, resulting in the detection result deviating from the actual situation.

[0028] The protection device further includes a push rod 26, a key 27, and a support rod 28. The push rod 26 is fixedly installed on the side of the fixed rod 21 close to the friction column 6. The key 27 is slidably installed on the side of the turntable 4 close to the friction column 6. The support rod 28 is rotatably installed on the side of the turntable 4 away from the back plate 2. The key 27 slidably penetrates the outer wall of the support rod 28. The rotation of the support rod 28 will increase the support strength of the friction column 6, making it more stable and firm during operation. This mechanism may be used in some devices that require increased support force or stability to improve the stability and performance of the overall system.

[0029] A third spring is provided between the fixed rod 21 and the sliding rod 22. The third spring is provided to drive the sliding rod 22 back to its initial position when the limit between the sliding rod 22 and the fixed rod 21 is released. A fourth spring is provided between the key 27 and the turntable 4. The fourth spring is provided to drive the key 27 back to its initial position when the push rod 26 releases the thrust on the key 27. A first torsion spring is provided between the support rod 28 and the turntable 4. The first torsion spring is provided to drive the support rod 28 to rotate back to its initial position after the limit of the support rod 28 is released.

[0030] The quick-release device includes a stop lever 33, a pressure lever 34, a rotating key 35, a rotating rod 36, a fixed frame 37, and a sliding key 38. The stop lever 33 is fixedly installed on the side of the protective housing 24 away from the friction column 6. The pressure lever 34 is slidably installed on the side of the turntable 4 close to the friction column 6. The rotating key 35 is rotatably installed on the side of the turntable 4 close to the friction column 6. The rotating key 35 slidably penetrates through the outer wall of the fixed shaft 5. The rotating rod 36 is fixedly installed on the outer wall of the circumferential surface of the rotating key 35. The fixed frame 37 is fixedly installed on the side of the turntable 4 close to the friction column 6. The sliding key 38 is slidably installed on the inner wall of the fixed frame 37. A fixing groove is formed on the side of the pressure lever 34 close to the sliding key 38. The shape of the sliding key 38 matches that of the fixing groove. When the friction column 6 wears to the extent that it cannot work properly, by releasing the limit of the rotating key 35 on the fixed shaft 5, the friction column 6 can be easily disassembled and replaced. This design makes the replacement process relatively simple, ensures the stability and safety of the equipment, reduces the maintenance and downtime, and improves the operating efficiency of the equipment.

[0031] The quick-release device further includes a connecting rod 31 and a scraper 32. One end of the connecting rod 31 is rotatably installed at the bottom of the protective housing 24. The scraper 32 is rotatably installed at the other end of the connecting rod 31. The surface of the scraper 32 contacts the surface of the friction column 6. The scraper 32 helps to maintain the original friction performance of the friction column 6, which is crucial for maintaining long-term stable friction performance. This can increase the friction force between the friction column 6 and the nylon wire, improve the friction effect, and enhance the working efficiency.

[0032] A second torsion spring is provided between the rotating key 35 and the turntable 4. The second torsion spring is provided to drive the rotating key 35 back to its original position when the pressure on the rotating rod 36 by the pressure lever 34 is released. A fifth spring is provided between the pressure lever 34 and the turntable 4. The fifth spring is provided to drive the pressure lever 34 back to its original position after the sliding key 38 releases the limit on the pressure lever 34. The side of the sliding key 38 close to the pressure lever 34 is set as an inclined surface. The inclined surface of the sliding key 38 is provided to avoid blocking the pressure lever 34 when the pressure lever 34 moves. A sixth spring is provided between the sliding key 38 and the fixed frame 37. The sixth spring is provided to push the sliding key 38 to move and insert into the fixing groove to limit the pressure lever 34 after the pressure lever 34 moves.

[0033] During the operation of this embodiment: When the detection of the nylon filament is completed, the sliding column 7 will return to its original position. The return of the sliding column 7 to its original position will drive the fixed rod 21 to move. The movement of the fixed rod 21 will push the sliding rod 22 to move. The movement of the sliding rod 22 will drive the protective shell 24 to move to wrap the outer wall of the friction column 6 to prevent the friction column 6 from contacting the outside for a long time. Dust, dirt or other tiny particles in the air may also contaminate the surface of the friction column 6. These particles may adhere to the contact surface between the friction column 6 and the nylon filament. If contaminants accumulate on the surface of the friction column 6, it may increase the friction force or cause uneven wear, resulting in the test results deviating from the actual situation. When one side of the friction column 6 rubs against the nylon filament for a long time, the surface of the friction column 6 will become smooth, reducing its friction effect on the nylon filament. At this time, press the telescopic buckle 23 to make the telescopic buckle 23 slide into the sliding rod 22. The sliding of the telescopic buckle 23 will release the limit between the sliding rod 22 and the fixed rod 21. Then the sliding rod 22 will be driven by the third spring to slide away from the friction column 6. The movement of the sliding rod 22 will drive the protective shell 24 to move. The movement of the protective shell 24 will release the protection of the friction column 6. At this time, pull the rotating buckle 25 to make the rotating buckle 25 slide away from the friction column 6 to release the limit on the friction column 6. When the limit on the friction column 6 is released, the friction column 6 can be rotated so that the unrubbed part of the friction column 6 rubs against the nylon filament. When the friction coefficient is low, the contact between the nylon filament and the friction column 6 may become smoother, resulting in a slower wear process. This may make the test results show better wear resistance, but this does not mean that the wear resistance of the nylon filament itself has increased. Instead, the change in the surface of the friction column 6 affects the test results. When contacting the nylon filament, the movement of the sliding column 7 will drive the fixed rod 21 to move away from the friction column 6. The movement of the fixed rod 21 will drive the sliding rod 22 to move. The movement of the sliding rod 22 will drive the protective shell 24 to move. The movement of the protective shell 24 will release the protection of the friction column 6. The movement of the fixed rod 21 will drive the push rod 26 to move. The movement of the push rod 26 will release the thrust on the key 27. Then the key 27 will be driven by the fourth spring to slide away from the friction column 6. The movement of the key 27 will release the limit on the support rod 28. When the limit on the support rod 28 is released, the first torsion spring will drive the support rod 28 to rotate towards the friction column 6. Then the support rod 28 will strengthen the support strength of the friction column 6. The rotation of the support rod 28 will increase the support strength for the friction column 6, making it more stable and firm during operation. This mechanism may be used in some devices that require increased support force or stability to improve the stability and performance of the overall system.

[0034] When one side of the friction column 6 rubs against the nylon filament for a long time, the surface of the friction column 6 will become smooth, reducing its friction effect on the nylon filament. When the protective shell 24 moves and releases the protection of the friction column 6, the movement of the protective shell 24 will pull the connecting rod 31 to move, and the movement of the connecting rod 31 will drive the scraper 32 to move. When the scraper 32 moves, it will rub the surface of the friction column 6, making the surface of the friction column 6 rough. By cleaning the impurities and smooth layer on the surface of the friction column 6, the scraper 32 helps to maintain the original friction performance of the friction column 6, which is crucial for maintaining long-term stable friction performance. This can increase the friction force between the friction column 6 and the nylon filament, improve the friction effect, and enhance the working efficiency. However, if the scraper 32 rubs the surface of the friction column 6 frequently, it may cause the material of the friction column 6 to gradually wear. Especially in the case of high-intensity friction, this wear will gradually reduce the volume of the friction column 6, resulting in the surface of the friction column 6 no longer being able to effectively contact the nylon filament, and even possibly causing the friction column 6 to eventually fail to work effectively. At this time, the friction column 6 needs to be replaced. When replacing the friction column 6, it is necessary to press the telescopic buckle 23 to release the limit between the fixed rod 21 and the sliding rod 22. When the limit between the fixed rod 21 and the sliding rod 22 is released, the protective shell 24 will release the protection of the friction column 6. The movement of the protective shell 24 will drive the stop rod 33 to move away from the friction column 6. The movement of the stop rod 33 will release the block on the pressure rod 34. When the block on the pressure rod 34 is released, the pressure rod 34 can be pulled to move. When the pressure rod 34 moves and contacts the rotating rod 36, the pressure rod 34 will push the rotating rod 36 to rotate. The rotation of the rotating rod 36 will drive the rotating key 35 to rotate. The rotation of the rotating key 35 will release the limit on the fixed shaft 5. When the pressure rod 34 moves, the sliding key 38 will contact the inner wall of the fixed groove, and the sliding key 38 will limit the pressure rod 34, so that the fixed shaft 5 can be taken out. When the fixed shaft 5 is taken out, the friction column 6 can be replaced. When the friction column 6 wears to the extent that it cannot work properly, by releasing the limit of the rotating key 35 on the fixed shaft 5, the friction column 6 can be easily disassembled and replaced. This design makes the replacement process relatively simple, ensures the stability and safety of the equipment, reduces the maintenance and downtime, and improves the operating efficiency of the equipment.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear resistance testing device for nylon filaments, comprising a workbench (1), characterized in that: A backboard (2) is fixedly installed on the top of the workbench (1). A turntable (4) is rotatably installed on the surface of the backboard (2). A fixed shaft (5) is fixedly installed on the side of the turntable (4) away from the backboard (2). A friction column (6) is slidably installed on the circumferential surface of the fixed shaft (5). A sliding column (7) is slidably installed on the side of the backboard (2) close to the turntable (4). A weight block (3) is fixedly installed on the side of the sliding column (7) away from the turntable (4). A fixing device is also provided on the surface of the backboard (2). The fixing device includes a circular plate (11), a clamping plate (12), a sliding block (13) and a fixing block (14). The circular plate (11) is rotatably installed on the side of the sliding column (7) away from the backboard (2). A sliding groove is formed on the surface of the circular plate (11). The clamping plate (12) is slidably installed on the inner wall of the sliding groove. The sliding block (13) is fixedly installed on the side of the clamping plate (12) close to the sliding column (7). The fixing block (14) is fixedly installed on the circumferential surface of the sliding column (7). A chute is formed on the circumferential surface of the sliding column (7). The shape of the chute matches that of the sliding block (13). Among them, a protection device for protecting the friction column (6) and a quick-release device for replacing the friction column (6) are also provided on the surface of the backboard (2).

2. The wear resistance detection device for nylon filaments according to claim 1, characterized in that: The fixing device further includes a sliding frame (8), a sliding plate (9), a sliding key (10), a square frame (15) and a round rod (16). The sliding frame (8) is slidably installed on the side of the backboard (2) close to the turntable (4). The sliding plate (9) is slidably installed on the side of the backboard (2) close to the turntable (4). The sliding key (10) is slidably installed on the side of the backboard (2) close to the sliding plate (9). The square frame (15) is fixedly installed on the circumferential surface of the sliding column (7). The round rod (16) is slidably installed on the inner wall of the square frame (15).

3. The abrasion resistance testing device for polyamide filaments according to claim 2, wherein: A circular hole is formed on the side of the circular plate (11) close to the round rod (16). The shape of the round rod (16) matches that of the circular hole. The side of the sliding plate (9) close to the sliding frame (8) is set as an inclined surface. A slot is formed on the side of the sliding column (7) close to the sliding key (10). The shape of the sliding key (10) matches that of the slot. The sides of the sliding key (10) and the sliding plate (9) close to each other are set as inclined surfaces. The sides of the sliding block (13) and the fixing block (14) close to each other are set as inclined surfaces. The round rod (16) slidably penetrates through the surface of the backboard (2). A first spring is provided between the square frame (15) and the round rod (16). A second spring is provided between the sliding column (7) and the backboard (2).

4. The wear resistance detection device for nylon filaments according to claim 3, wherein: The protection device includes a fixed rod (21), a sliding rod (22), a telescopic buckle (23), a protective shell (24), and a rotating buckle (25). The fixed rod (21) is fixedly installed on one side of the sliding column (7) close to the turntable (4). The sliding rod (22) is slidably installed inside the inner wall of the fixed rod (21). The telescopic buckle (23) is slidably installed inside the inner wall of the sliding rod (22). The telescopic buckle (23) slidably penetrates through the inner wall of the fixed rod (21). The protective shell (24) is fixedly installed on one side of the sliding rod (22) close to the friction column (6). The rotating buckle (25) slides on the inner wall of the fixed shaft (5) away from the back plate (2). An adjustment groove is formed on one side of the friction column (6) close to the rotating buckle (25), and the outer shape of the rotating buckle (25) matches the adjustment groove.

5. The abrasion resistance testing device for polyamide filaments according to claim 4, characterized in that: The protection device further includes a push rod (26), a key (27), and a support rod (28). The push rod (26) is fixedly installed on one side of the fixed rod (21) close to the friction column (6). The key (27) is slidably installed on one side of the turntable (4) close to the friction column (6). The support rod (28) is rotatably installed on one side of the turntable (4) away from the back plate (2). The key (27) slidably penetrates through the outer wall of the support rod (28).

6. The abrasion resistance testing device for polyamide filaments according to claim 5, characterized in that: A third spring is provided between the fixed rod (21) and the sliding rod (22). A fourth spring is provided between the key (27) and the turntable (4). A first torsion spring is provided between the support rod (28) and the turntable (4).

7. The wear resistance detection device for polyamide filaments according to claim 6, characterized in that: The quick-release device includes a stop rod (33), a pressure rod (34), a rotating key (35), a rotating rod (36), a fixed frame (37), and a sliding key (38). The stop rod (33) is fixedly installed on one side of the protective shell (24) away from the friction column (6). The pressure rod (34) is slidably installed on one side of the turntable (4) close to the friction column (6). The rotating key (35) is rotatably installed on one side of the turntable (4) close to the friction column (6). The rotating key (35) slidably penetrates through the outer wall of the fixed shaft (5). The rotating rod (36) is fixedly installed on the outer wall of the circumferential surface of the rotating key (35). The fixed frame (37) is fixedly installed on one side of the turntable (4) close to the friction column (6). The sliding key (38) is slidably installed inside the inner wall of the fixed frame (37). A fixed groove is formed on one side of the pressure rod (34) close to the sliding key (38), and the outer shape of the sliding key (38) matches the fixed groove.

8. An abrasion resistance testing device for nylon filaments according to claim 7, characterized in that: The quick-release device further includes a connecting rod (31) and a scraping plate (32). One end of the connecting rod (31) is rotatably installed at the bottom of the protective shell (24). The scraping plate (32) is rotatably installed at the other end of the connecting rod (31). The surface of the scraping plate (32) is in contact with the surface of the friction column (6).

9. The abrasion resistance testing device for polyamide filaments according to claim 8, characterized in that: A second torsion spring is provided between the rotating key (35) and the turntable (4). A fifth spring is provided between the pressure rod (34) and the turntable (4). One side of the sliding key (38) close to the pressure rod (34) is provided as an inclined surface. A sixth spring is provided between the sliding key (38) and the fixed frame (37).

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