A tension testing device for spun yarn

Abstract

The application relates to the technical field of yarn intelligent detection, and discloses a tension testing device for spun yarn, which comprises a device seat, two yarn guide members arranged on the device seat, and a traction detection member arranged between the two yarn guide members; the middle part of each yarn guide member is provided with a wire passing hole, one side of the wire passing hole is provided with a pressing rod, a cylinder one is fixed on the yarn guide member, one side of an elastic sheet is provided with a V-shaped block fixed in the wire passing hole; the traction detection member comprises a stabilizing block, a guide rod is horizontally arranged on the stabilizing block, a mounting block is slidably arranged on the guide rod, a motor three is fixed on the mounting block, the output end of the motor three is connected with a hook rod, and a pressure sensor is arranged at the front end of the hook rod; the rear side of the mounting block is rotationally connected with a connecting rod through a supporting rod, a cylinder two is arranged on the stabilizing block, and the connecting rod is rotationally connected with the output end of the cylinder two. The two yarn guide members are adopted to fix the spun yarn, the position to be detected is fixed at the hook claw, the tension of the spun yarn is tested, and the intelligent sensor can accurately detect the tension of the spun yarn.

Description

Technical Field

[0001] This invention relates to the field of intelligent yarn detection technology, specifically a tension testing device for fine yarn. Background Technology

[0002] In the current practical application scenarios and existing technical solutions for yarn tension testing, the inherent flexibility of yarn, its small diameter, and its susceptibility to deformation due to environmental temperature and humidity make the implementation of tension testing a multi-dimensional challenge. Even though existing patented technologies have made corresponding optimizations to the test structure and acquisition logic, they still cannot fully cover the testing needs under various actual working conditions.

[0003] Existing technologies propose a basic approach to collect tension data by directly attaching a contact tension sensor to the yarn surface, attempting to establish a standardized yarn tension testing process. However, this approach is only suitable for conventional textile yarns within a specific linear density range. For special yarn types such as high-elasticity covered yarns and ultra-fine synthetic filaments, problems such as sensor compression causing localized yarn deformation and data acquisition lag are easily encountered. Furthermore, it does not consider vibration interference during high-speed yarn movement, making it difficult to accurately test the yarn's tensile strength.

[0004] Therefore, it is necessary to design a tension testing device for fine yarn. Summary of the Invention

[0005] The purpose of this invention is to provide a tension testing device for fine yarn to solve the problems in the prior art.

[0006] The objective of this invention can be achieved through the following technical solutions: A tension testing device for fine yarn, the tension testing device includes a device base, two guide yarn members are provided on the device base, and a traction detection element is provided between the two guide yarn members; The wire guide is provided with a wire passage hole in the middle, and a pressure rod is provided on one side of the wire passage hole. A cylinder for moving the pressure rod is fixed on the wire guide, and a V-shaped block is fixed in the wire passage hole on one side of the elastic sheet. The traction detection component includes a stabilizing block, a guide rod horizontally mounted on the stabilizing block, a mounting block sliding on the guide rod, a motor three fixed on the mounting block, a hook rod connected to the output end of the motor three, and a pressure sensor mounted on the front end of the hook rod. The rear side of the mounting block is rotatably connected to a connecting rod via a support rod, and a second cylinder is provided on the stabilizing block. The connecting rod is rotatably connected to the output end of the second cylinder.

[0007] Furthermore, the device base is provided with at least one guide rail, and a bidirectional lead screw is provided parallel to the side of the guide rail. Symmetrically distributed kits are connected to the bidirectional lead screw, and the bidirectional lead screw is threadedly connected to the kits. Two slide blocks slide on the guide rail.

[0008] Furthermore, the kit is slidably connected to the slide block, and a built-in spring is provided between one end of the kit and the slide block. Side rods are symmetrically installed on the slide block, and a support claw is connected to one side of the side rod. The guide wire is located between the two side rods.

[0009] Furthermore, a horizontal groove is provided on the slide block and between the two side rods. A double-acting lead screw is rotatably provided in the horizontal groove. Support frames are symmetrically provided on the double-acting lead screw. A shaft hole is provided on the support frame. A conical friction groove is provided on one side of the shaft hole. Several rubber blocks are installed in the conical friction groove. A detachable raw material roller is provided between the two support frames. A shaft is installed at both ends of the raw material roller. The shaft rotates on the shaft hole. A tapered block is fixed on the shaft, and the rubber block cooperates with the tapered block to achieve rapid braking. The two-way lead screw is threadedly connected to the support frame.

[0010] Furthermore, the guide wire component is fixedly provided with clamping rods on both sides, the clamping rods are installed on the support claws, the middle part of the clamping rod is a groove-shaped structure, a screw is rotatably provided in the groove-shaped structure, one end of the screw is rotatably provided with a moving plate, the side of the moving plate is provided with an anti-slip pad, the anti-slip pad cooperates with the support claw to stabilize the guide wire component.

[0011] Furthermore, a crossbar is provided below the guide wire component, and the crossbar is slidably connected to the upper end of the support frame. A limit spring is fitted on the crossbar, and the limit spring is in contact with the support frame.

[0012] Furthermore, a stand is fixedly provided on the device base, and mating grooves are provided on both sides of the stand. The stand is installed in the middle of the device base, and a motor is provided below the stand. Guide columns are arranged in an array above the stand, and a movable seat is slidably provided on the guide columns. The traction detection component is set between two movable seats. A top pressure spring is installed on the top of the guide column, and one end of the top pressure spring is attached to the top of the movable seat. A rotating rod is rotatably provided in the middle of the movable seat, and a top rod is provided parallel above the rotating rod. The top rod is rotatably connected to the movable seat.

[0013] Furthermore, the rotating rod is fixed with symmetrically distributed support rods, the top of the support rod is provided with a lever, the top rod is symmetrically provided with swing arms, the middle of the swing arm is provided with a slot, the slot is slidably connected with the lever, the front end of the swing arm is provided with a first spool, and the middle of the support rod is provided with a second spool.

[0014] Furthermore, a second motor is installed inside the movable base. A second gear is connected to the output end of the second motor. A third gear meshes with the lower part of the second gear. The third gear is coaxially connected to one end of the rotating rod. A first gear is connected to the output end of the first motor. The first gear is horizontally set on the upright. Side plates are symmetrically arranged above the upright. The two side plates are located on both sides of the first gear. A limiting post is fixedly arranged on the inner side of the side plate. A moving rod is arranged between the side plate and the first gear. A rack is fixedly arranged on one side of the moving rod, and a guide groove is arranged on the other side. The guide groove is slidably connected to the limiting post.

[0015] Furthermore, the racks and gears on the two movable rods mesh with each other, and a push rod is rotatably connected to one end of the movable rod, which is rotatably connected to the rotating rod.

[0016] The beneficial effects of this invention are: 1. The present invention provides a tension testing device for fine yarn, wherein the fine yarn is precisely guided by wire guides and fixed by two wire guides, the position to be tested is fixed at the hook, and the tension of the fine yarn is tested by using the hook and the intelligent sensor on it. The intelligent sensor can accurately detect the tension of the fine yarn, is intelligent and reliable, and has accurate measurement. 2. The present invention provides a tension testing device for fine yarn. The tension test is applied to fine yarn. When the fine yarn is measured automatically, it can ensure the stability and reliability of the fine yarn. During the test, the fine yarn guide and tension are accurate, solving the problem of the difficulty in measuring the tension of fine yarn products and ensuring that the tension of the product meets the required production requirements. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the tension testing device for fine yarn of the present invention; Figure 2 This is a schematic diagram of the structure of the device base of the present invention; Figure 3 This is the present invention. Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is the present invention. Figure 2 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the structure of the stand of the present invention; Figure 6 This is the present invention. Figure 5 Enlarged structural diagram at point C; Figure 7 This is the present invention. Figure 5 Enlarged structural diagram at point D; Figure 8 This is a schematic diagram of the structure of the stand of the present invention; Figure 9 This is the present invention. Figure 8 Enlarged structural diagram at point E in the middle.

[0019] Explanation of reference numerals in the attached figures: 1. Device base; 2. Wire guide; 3. Stand; 4. Traction detection component; 5. Raw material roller; 10. Conical friction groove; 11. Guide rail; 12. Double-acting lead screw one; 13. Slide seat; 14. Kit; 15. Side rod; 16. Support claw; 17. Double-acting lead screw two; 19. Support frame; 20. Moving plate; 21. Through hole; 22. V-block; 23. Elastic sheet; 24. Pressure rod; 25. Cylinder one; 26. Clamping rod; 27. Groove structure; 28. Screw; 29. ​​Anti-slip pad; 30. Motor one; 31. Mating groove; 32. Guide column; 33. Moving seat; 34. Top rod; 35. Rotating rod; 36. 37. Push rod; 38. Side plate; 39. Moving rod; 40. Limiting post; 41. Stabilizing block; 42. Guide rod; 43. Mounting block; 44. Motor three; 45. Hook rod; 46. Support rod; 47. Connecting rod; 48. Cylinder two; 51. Conical block; 52. Shaft; 200. Crossbar; 201. Limiting spring; 300. Gear one; 321. Top pressure spring; 341. Swing arm; 342. Empty slot; 343. Thread pulley one; 351. Support rod; 352. Toggle rod; 353. Thread pulley two; 354. Gear three; 355. Gear two; 356. Motor two; 381. Guide slot; 382. Rack. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0021] A tension testing device for fine yarn, such as Figure 1 As shown, this device is mainly used to test products such as yarns, fine yarns, and fine threads. It is primarily used to detect the tension of the products and test their mechanical properties. It uses intelligent sensors to detect the performance of the products and belongs to the field of intelligent sensing.

[0022] In this embodiment, the tension testing device includes a device base 1, which is a flat plate structure used to support the operation of the overall structure. Two guide yarns 2 are provided on the device base 1. A stand 3 is fixedly installed in the middle of the device base 1. A traction detection element 4 is provided on the stand 3 to hook the yarn and test the tension of the yarn.

[0023] In this embodiment, as Figures 2-4 As shown, at least one guide rail 11 is provided on the device base 1. If multiple guide rails 11 are provided, the multiple guide rails 11 are arranged in parallel, and a bidirectional lead screw 12 is arranged in parallel on the side of the guide rail 11. Symmetrically distributed kits 14 are connected to the bidirectional lead screw 12.

[0024] The bidirectional lead screw 12 passes through the kit 14 and is threadedly connected to the kit 14. Two slide blocks 13 are slidably mounted on the guide rail 11. The slide blocks 13 are symmetrically arranged on the bidirectional lead screw 12 and are paired with the kit 14.

[0025] The aforementioned kit 14 is horizontally positioned along the axis of the bidirectional lead screw 12 and is slidably connected to the slide block 13. An internal spring (not shown in the figure) is provided between one end of the kit 14 and the slide block 13. The two ends of the internal spring are connected to the kit 14 and the slide block 13 respectively to complete the connection between the kit 14 and the slide block 13.

[0026] In this embodiment, symmetrically distributed side rods 15 are fixedly installed on the slide block 13, and a support claw 16 is fixedly connected to one side of the side rod 15. The guide wire member 2 is located between the two side rods 15.

[0027] A horizontal groove is provided on the slide block 13 and between the two side rods 15. A double-acting screw 17 is rotatably installed in the horizontal groove. Support frames 19 are symmetrically arranged on the double-acting screw 17. A shaft hole is opened on the support frame 19. A conical friction groove 10 is provided on one side of the shaft hole. Several rubber blocks are installed in the conical friction groove 10. A detachable raw material roller 5 is provided between the two support frames 19. A shaft rod 52 is fixedly installed at both ends of the raw material roller 5. The shaft rod 52 is rotatably installed on the shaft hole, supporting the raw material roller 5 to rotate on the two support frames 19. The fine yarn to be tested is installed on the raw material roller 5 in a winding manner.

[0028] A tapered block 51 is fixedly installed on the shaft 52. A two-way lead screw 17 is threadedly connected to the support frame 19. The two-way lead screw 17 drives the support frame 19 to move horizontally on the slide block 13. If the support frame 19 moves horizontally, the tapered block 51 enters the tapered friction groove 10. The rubber block contacts the tapered block 51, and the friction of the rubber block stops the shaft 52 and the raw material roller 5.

[0029] The guide wire 2 has a through hole 21 in the middle and a pressure rod 24 on one side of the through hole 21. One end of the pressure rod 24 is fixedly connected to a cylinder 25. The cylinder 25 is fixed to the guide wire 2 by bolts. The other end of the pressure rod 24 faces the elastic sheet 23. Both ends of the elastic sheet 23 are fixed in the through hole 21. A V-block 22 is provided opposite to the elastic sheet 23. By moving the pressure rod 24, the elastic sheet 23 is pressed, causing it to deform and shortening the gap between it and the V-block 22, thus fixing the yarn passing between the two.

[0030] A locking rod 26 is fixedly provided on both sides of the guide wire 2. The locking rod 26 is installed on the support claw 16. The middle part of the locking rod 26 is a groove structure 27. A screw 28 is rotatably provided in the groove structure 27. One end of the screw 28 is rotatably connected to a moving plate 20. An anti-slip pad 29 is provided on the side of the moving plate 20. When the screw 28 is rotated, the moving plate 20 is controlled to move horizontally in the groove structure 27, so that the moving plate 20 gradually approaches one side of the support claw 16, and the anti-slip pad 29 is in contact with the side of the support claw 16.

[0031] When multiple anti-slip pads 29 are in contact with the support claws 16, it is sufficient to fix the position of the guide wire 2 and lock the guide wire 2. Of course, in actual use, it is also convenient to adjust the position of the guide wire 2 and to disassemble and replace the guide wire 2.

[0032] A crossbar 200 is provided below the guide wire 2. The crossbar 200 is slidably connected to the upper end of the support frame 19 to guide the support frame 19. A limit spring 201 is fitted on the crossbar 200. The limit spring 201 contacts the support frame 19 to limit the excessive movement of the support frame 19, which would cause the rubber block and the conical block 51 to be squeezed and damaged, thus ensuring the life of the rubber block.

[0033] according to Figures 5-7 As shown, the upright 3 is provided with mating grooves 31 on both sides to facilitate the entry of the slide 13, so that the slide 13 enters the mating grooves 31 from both sides of the upright 3, thus preventing the upright 3 and the slide 13 from being offset in the horizontal direction.

[0034] A motor 30 is installed below the base 3, and an array of guide posts 32 are installed above the base 3. A movable seat 33 is slidably mounted on the guide posts 32. A top pressure spring 321 is installed on the top of the guide posts 32. One end of the top pressure spring 321 is attached to the top of the movable seat 33. A rotating rod 35 is rotatably mounted in the middle of the movable seat 33. A top rod 34 is arranged parallel above the rotating rod 35. The top rod 34 is rotatably connected to the movable seat 33.

[0035] Symmetrically distributed support rods 351 are fixed on the rotating rod 35. A lever 352 is provided at the top of the support rod 351. Symmetrically distributed swing arms 341 are fixed on the top rod 34. A slot 342 is provided in the middle of the swing arm 341. The slot 342 is slidably connected to the lever 352. A spool 343 is rotatably provided at the front end of the swing arm 341.

[0036] A second spool 353 is rotatably mounted in the middle of the support rod 351. The yarn is guided by the first spool 343 and the second spool 353. The tension of the yarn is changed by rotating the rotating rod 35 to change the position of the support rod 351 and the swing arm 341, and adjusting the distance and position of the first spool 343 and the second spool 353.

[0037] In this embodiment, a second motor 356 is fixedly installed inside the movable base 33. A second gear 355 is fixedly connected to the output end of the second motor 356. A third gear 354 meshes below the second gear 355. The third gear 354 is coaxially fixedly connected to one end of the rotating rod 35. Under the meshing transmission of the second gear 355 and the third gear 354, the second motor 356 drives the rotating rod 35 to rotate, thereby realizing the control of the rotating rod 35.

[0038] The output end of motor 30 is fixedly connected to gear 300. Gear 300 is horizontally set on stand 3. Side plates 37 are symmetrically distributed above stand 3. The two side plates 37 are located on both sides of gear 300. Limiting posts 39 are fixedly set on the inner side of side plates 37. Limiting posts 39 are set vertically. Moving rod 38 is set between side plate 37 and gear 300. A rack 382 is fixed on one side of moving rod 38. A guide groove 381 is opened on the other side. The guide groove 381 is slidably connected to limiting post 39.

[0039] When the limiting post 39 is attached to one end of the guide groove 381, the moving rod 38 can be limited and its position fixed.

[0040] The racks 382 on the two moving rods 38 mesh with the gear 300. The two racks 382 are driven by the single gear 300. One end of the moving rod 38 is rotatably connected to the push rod 36, and the other end of the push rod 36 is rotatably connected to the rotating rod 35, so as to convert the horizontal movement of the moving rod 38 into the vertical movement of the rotating rod 35, thereby adjusting the height of the rotating rod 35.

[0041] according to Figure 8 , Figure 9 As shown, a traction detection component 4 is provided on the stand 3 and located between the two movable seats 33. The traction detection component 4 includes a stabilizing block 41 installed on the stand 3, a cylinder 48 installed on the stabilizing block 41, a horizontally arranged guide rod 42 fixedly installed on the stabilizing block 41, an installation block 43 horizontally slidably installed on the guide rod 42, a motor 44 fixedly installed on the installation block 43, and a hook rod 45 connected to the output end of the motor 44.

[0042] In this embodiment, the yarn between the two movable seats 33 is pressed down by the hook rod 45, and the yarn is hooked and pulled. A pressure sensor is installed at the front end of the hook rod 45. The input end of the pressure sensor is in contact with the yarn, which can monitor the pressure on the hook rod 45, making it convenient to test the tension of the yarn for testing, and also convenient to record the tension data of the yarn.

[0043] The mounting block 43 is fixedly provided with a support rod 46 on its rear side. A connecting rod 47 is rotatably connected to the lower part of the support rod 46. The lower end of the connecting rod 47 is rotatably connected to the output end of the second cylinder 48, so that the output power of the second cylinder 48 is transmitted to the mounting block 43, and the vertical driving force of the second cylinder 48 is converted into the horizontal movement of the mounting block 43 to adjust the position of the mounting block 43.

[0044] In use, the raw yarn to be tested is first wound onto the raw material roller 5. Then, the shafts 52 at both ends of the raw material roller 5 are placed in the shaft holes of the two support frames 19. The two-way screw 17 is rotated to drive the two support frames 19 to move closer to each other, so that the conical block 51 is gradually inserted into the conical friction groove 10. The friction between the rubber block and the conical block 51 restricts the rotation of the shaft 52, preventing the raw material roller 5 from rotating uncontrollably and releasing too much yarn. The limit spring 201 is fitted onto the crossbar 200 to buffer the movement of the support frame 19 and prevent excessive compression that could damage the components.

[0045] The wire guide 2 is then clamped onto the support claw 16 via the clamping rod 26. The screw 28 is rotated to push the moving plate 20 to clamp the support claw 16, thus fixing the position of the wire guide 2. The installation position of the wire guide 2 on the support claw 16 is adjusted according to the actual test requirements to meet the wiring requirements of different test scenarios.

[0046] The yarn end drawn from the raw material roller 5 is passed through the through hole 21 of the guide 2 on one side, the yarn path of the traction detection piece 4, and then through the through hole 21 of the guide 2 on the other side before being wound up. The cylinder 25 is activated to push the pressure rod 24 to press the elastic sheet 23. After the elastic sheet 23 deforms, it cooperates with the V-block 22 to clamp the corresponding position of the yarn, thus completing the yarn path fixing.

[0047] During testing, rotating the bidirectional lead screw 12 drives the two components 14 to move the slide block 13 closer to or further away from each other along the guide rail 11, adjusting the distance between the two guide yarn components 2 to adapt to the testing requirements of different yarn lengths; starting the motor 30 drives the gear 300 to rotate, which meshes with the two racks 382, ​​causing the two moving rods 38 to move synchronously, pushing the moving seat 33 up and down along the guide column 32 via the push rod 36, adjusting the overall height of the first spool 343 and the second spool 353; then starting the motor 356 drives the gear 354 through the meshing of the second gear 355, causing the rotating rod 35 to rotate, which in turn causes the support rod 351 to deflect, and the lever 352 moves the swing arm 341 to adjust the angle, changing the distance between the first spool 343 and the second spool 353, thereby adjusting the initial tension of the yarn as a whole to meet the initial tension requirements of different testing standards.

[0048] After adjustment, cylinder 48 is activated, which pulls support rod 46 via connecting rod 47, causing mounting block 43 to move horizontally along guide rod 42, moving hook rod 45 directly below the yarn. Cylinder 48 then continues to operate, driving hook rod 45 to move upward and hook the yarn, pulling the yarn downward at a uniform speed. Pressure data during the pulling process is collected in real time by pressure sensor at the front end of hook rod 45 until the yarn breaks, thus obtaining the tension limit data of the yarn sample and completing a single tension test.

[0049] After the test is completed, replace the yarn sample with a new one and repeat the above steps to obtain multiple sets of test data, thus completing the tension performance test of the yarn product.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A tension testing device for fine yarn, characterized in that, The tension testing device includes a device base (1), on which two guide wires (2) are provided, and a traction detection element (4) is provided between the two guide wires (2). The wire guide (2) has a wire hole (21) in the middle, a pressure rod (24) on one side of the wire hole (21), a cylinder (25) for moving the pressure rod (24) is fixed on the wire guide (2), and a V-shaped block (22) fixed in the wire hole (21) is provided on one side of the elastic sheet (23). The traction detection component (4) includes a stabilizing block (41), a guide rod (42) is horizontally mounted on the stabilizing block (41), an mounting block (43) slides on the guide rod (42), a motor (44) is fixed on the mounting block (43), a hook rod (45) is connected to the output end of the motor (44), and a pressure sensor is installed at the front end of the hook rod (45). The rear side of the mounting block (43) is rotatably connected to a connecting rod (47) via a support rod (46). The stabilizing block (41) is equipped with a second cylinder (48), and the connecting rod (47) is rotatably connected to the output end of the second cylinder (48).

2. The tension testing device for fine yarn according to claim 1, characterized in that, At least one guide rail (11) is provided on the device base (1). A bidirectional lead screw (12) is provided parallel to the side of the guide rail (11). A symmetrically distributed kit (14) is connected to the bidirectional lead screw (12). The bidirectional lead screw (12) is threadedly connected to the kit (14). Two slide blocks (13) slide on the guide rail (11).

3. The tension testing device for fine yarn according to claim 2, characterized in that, The kit (14) is slidably connected to the slide (13). A built-in spring is provided between one end of the kit (14) and the slide (13). Side rods (15) are symmetrically installed on the slide (13). A support claw (16) is connected to one side of the side rod (15). The guide wire (2) is located between the two side rods (15).

4. The tension testing device for fine yarn according to claim 3, characterized in that, A horizontal groove is provided on the slide (13) and between the two side rods (15). A two-way screw (17) is rotatably provided in the horizontal groove. A support frame (19) is symmetrically provided on the two-way screw (17). A shaft hole is provided on the support frame (19). A conical friction groove (10) is provided on one side of the shaft hole. Several rubber blocks are installed in the conical friction groove (10). A detachable raw material roller (5) is provided between the two support frames (19). A shaft (52) is installed at both ends of the raw material roller (5). The shaft (52) rotates on the shaft hole. A conical block (51) is fixed on the shaft (52). The rubber block and the conical block (51) cooperate to achieve rapid braking. The two-way lead screw (17) is threadedly connected to the support frame (19).

5. The tension testing device for fine yarn according to claim 3, characterized in that, The guide wire component (2) is fixedly provided with clamping rods (26) on both sides. The clamping rods (26) are installed on the support claws (16). The middle part of the clamping rods (26) is a groove structure (27). A screw (28) is rotatably provided in the groove structure (27). A movable plate (20) is rotatably provided at one end of the screw (28). An anti-slip pad (29) is provided on the side of the movable plate (20). The anti-slip pad (29) cooperates with the support claws (16) to stabilize the guide wire component (2).

6. The tension testing device for fine yarn according to claim 5, characterized in that, A crossbar (200) is provided below the guide wire (2). The crossbar (200) is slidably connected to the upper end of the support frame (19). A limit spring (201) is fitted on the crossbar (200). The limit spring (201) is in contact with the support frame (19).

7. The tension testing device for fine yarn according to claim 1, characterized in that, A stand (3) is fixedly provided on the device base (1). The stand (3) has mating grooves (31) on both sides. The stand (3) is installed in the middle of the device base (1). A motor (30) is provided below the stand (3). A guide column (32) is arranged above the stand (3). A movable seat (33) is slidably provided on the guide column (32). A traction detection component (4) is set between the two movable seats (33). A top pressure spring (321) is installed on the top of the guide column (32). One end of the top pressure spring (321) is attached to the top of the movable seat (33). A rotating rod (35) is rotatably provided in the middle of the movable seat (33). A top rod (34) is parallel above the rotating rod (35). The top rod (34) is rotatably connected to the movable seat (33).

8. The tension testing device for fine yarn according to claim 7, characterized in that, The rotating rod (35) is fixed with symmetrically distributed support rods (351). The top of the support rod (351) is provided with a lever (352). The top rod (34) is symmetrically provided with swing arms (341). The middle part of the swing arm (341) is provided with a slot (342). The slot (342) is slidably connected with the lever (352). The front end of the swing arm (341) is provided with a first spool (343), and the middle part of the support rod (351) is provided with a second spool (353).

9. The tension testing device for fine yarn according to claim 8, characterized in that, The movable base (33) is equipped with a second motor (356), the output end of the second motor (356) is connected to a second gear (355), a third gear (354) meshes below the second gear (355), the third gear (354) is coaxially connected to one end of the rotating rod (35), the output end of the first motor (30) is connected to a first gear (300), the first gear (300) is horizontally set on the stand (3), the stand (3) is symmetrically provided with side plates (37) above the stand (3), the two side plates (37) are located on both sides of the first gear (300), the inner side of the side plate (37) is fixedly provided with a limiting post (39), a moving rod (38) is provided between the side plate (37) and the first gear (300), a rack (382) is fixedly provided on one side of the moving rod (38), and a guide groove (381) is provided on the other side, the guide groove (381) is slidably connected to the limiting post (39).

10. A tension testing device for fine yarn according to claim 9, characterized in that, The racks (382) on the two moving rods (38) mesh with the gear (300), and a push rod (36) is rotatably connected to one end of the moving rod (38), and the push rod (36) is rotatably connected to the rotating rod (35).

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