An apparatus and method for preparing durable sewing thread

Abstract

This invention relates to the textile field, specifically to a device and method for preparing durable sewing thread. The device includes: a device body, a first side plate, a second side plate, a thread inlet, a thread outlet, a cleaning mechanism, a support mechanism, a clamping mechanism, a translation mechanism, and a power mechanism. The support mechanism includes two support horizontal plates, several clamping devices, and a photosensitive sensor. The support mechanism also includes two sliding horizontal plates and several elastic supports, which are divided into upper and lower groups and staggered along the length of the sliding horizontal plates. Guide wheels are provided on the elastic supports. The power mechanism is connected to the two sliding horizontal plates. A back plate is fixedly disposed between the first and second side plates. The back plate has a serpentine sliding track, and several clamping mechanisms are disposed on the sliding track. Each clamping mechanism includes a moving part and a clamping part. This device can automatically detect broken threads and automatically repair broken threads, improving production efficiency.

Description

Technical Field

[0001] This invention relates to the textile field, specifically to an apparatus and method for preparing durable sewing thread. Background Technology

[0002] Sewing thread is the thread used in knitted garments. Based on raw materials, sewing thread can be divided into three main categories: natural fiber sewing thread, synthetic fiber sewing thread, and blended sewing thread. With the development of the polyester industry, more and more sewing threads are made from pure polyester fiber.

[0003] Polyester fiber is a high-quality synthetic fiber. Sewing thread made from it has high strength, second only to nylon thread among various types of sewing thread, and its strength does not decrease when wet. Polyester is also called high-strength thread; nylon sewing thread is called pearl thread. Polyester sewing thread is made by twisting long or short polyester fibers, and it is abrasion-resistant, has low shrinkage, and good chemical stability.

[0004] Twisting increases the density of the product, changes its package shape and linear density, and better meets the requirements of subsequent processing and use. A twisting machine is a textile machinery device used for twisting yarn. A twisting machine includes a machine body and an electrical circuit. The spindles outside the machine body are connected to the motor output shaft of the electrical circuit. The front end of the spindles is equipped with connectors corresponding to tap switches.

[0005] If a thread breaks during the twisting process, it directly affects the quality of the produced product. If the worker detects and repairs the break promptly, it's fine; however, if the worker misses it, the product will be defective. Currently, twisting machines lack the ability to detect thread breaks, and relying solely on the worker's eyes cannot accurately identify every break and allow for timely repair. If a worker fails to detect a break in time, more time will be spent locating the break and reprocessing the defective product. Furthermore, after discovering a break, the machine must be stopped for repair, and the skill level of each worker varies; some novices may spend excessive time repairing broken threads, significantly delaying the overall processing time.

[0006] Therefore, there is a need for a new type of twisting equipment that can automatically detect broken threads during twisting and can promptly repair the broken threads. Summary of the Invention

[0007] Therefore, it is necessary to provide a device and method for preparing durable sewing thread to address the problems in the existing technology.

[0008] To address the problems of existing technologies, the present invention adopts the following technical solution: a device for preparing durable sewing thread, comprising:

[0009] The device body is horizontally arranged, and a first side plate and a second side plate are arranged symmetrically on the device body. The first side plate is provided with an inlet, and the second side plate is provided with an outlet. A cleaning mechanism is provided at the outlet.

[0010] Two support horizontal plates are fixedly arranged symmetrically between the first side plate and the second side plate. Each support horizontal plate is provided with a plurality of abutments, and each abutment is provided with a photosensitive sensor.

[0011] The support mechanism is located between the first side plate and the second side plate. It includes two sliding horizontal plates that are symmetrically and movable between the first side plate and the second side plate. Each sliding horizontal plate is provided with a number of elastic supports at intervals. All the elastic supports are divided into upper and lower groups and are staggered along the length of the sliding horizontal plate. Each elastic support is provided with a guide wheel. Each guide wheel is wound with a sewing thread body. Each photosensitive sensor is provided with one guide wheel.

[0012] A power mechanism is located between the first side plate and the second side plate, and the power mechanism is connected to the two sliding cross plates in a transmission manner.

[0013] A back plate is fixedly installed between the first side plate and the second side plate. A sliding track and two translation mechanisms symmetrically arranged at the top and bottom of the back plate are fixedly installed on the back plate. Each translation mechanism is equipped with a hot-melt connector. Each hot-melt connector is connected to the translation output end of the translation mechanism. The sliding track is serpentine and has an expansion section at the position of each guide wheel.

[0014] Several clamping mechanisms are arranged on the sliding track. Each clamping mechanism includes a moving part and a clamping part. The clamping part has a clamping output end for clamping the sewing thread body. The moving part has a moving output end for driving the clamping part to move along the sliding track. Each clamping mechanism stops between two sliding cross plates when not in operation.

[0015] Furthermore, a supporting vertical plate is provided between the first side plate and the second side plate. The supporting vertical plate is fixedly installed in the device body. Rectangular through holes are provided on both the first side plate and the second side plate. Both ends of each sliding horizontal plate slide along the rectangular through holes. The power mechanism includes a power motor fixedly installed on the supporting vertical plate, a threaded rod coaxially fixedly connected to the output end of the power motor, a fixed seat fixedly installed on one side of the power motor, a sliding seat movably installed between the fixed seat and the power motor and threadedly connected to the threaded rod, and two transmission rods hinged to both ends of the sliding seat. The other end of each transmission rod is hinged to the sliding horizontal plate, and the threaded rod is rotatably connected to the fixed seat.

[0016] Furthermore, each of the elastic supports includes a support tube fixedly mounted on a sliding cross plate, a movable tube coaxially slidably mounted in the support tube, a pressure spring coaxially mounted in the support tube, an adapter fixedly mounted at the end of the movable tube, and a support shaft fixedly mounted on the adapter. The guide wheel is coaxially rotatably connected to the support shaft, and one end of the pressure spring abuts against the support tube and the other end abuts against the movable tube.

[0017] Furthermore, each of the aforementioned clamps includes a leg fixedly mounted on the support plate, an arc-shaped plate fixedly mounted on the leg, and a plurality of limiting protrusions evenly arranged along the arc direction of the arc-shaped plate, wherein the photosensitive sensor is fixedly mounted in the middle of the arc-shaped plate.

[0018] Furthermore, each of the moving parts includes two sliding blocks symmetrically slidably disposed on a sliding track, a spring screw fixedly disposed on each sliding block, a U-shaped bracket fixedly disposed on the top of the two sliding blocks, a central shaft rotatably disposed on the U-shaped bracket, a rolling rubber wheel coaxially fixedly disposed on the central shaft, and a first motor fixedly disposed on one side of the U-shaped bracket. Limiting grooves are provided on both sides of the sliding track. The central shaft is coaxially fixedly connected to the rotating shaft of the first motor. The rolling rubber wheel abuts against the sliding track. The movable head of each spring screw abuts against the inner wall of the limiting groove. The U-shaped bracket is the moving output end of the moving part.

[0019] Furthermore, each clamping part includes a support base fixedly mounted on a U-shaped bracket, support side plates fixedly mounted on both ends of the support base, a second motor fixedly mounted on one support side plate, a bidirectional lead screw rotatably mounted between the two support side plates, and two grippers symmetrically mounted on the bidirectional lead screw. The output shaft of the second motor is coaxially and fixedly connected to the bidirectional lead screw. A sliding groove is provided in the middle of the support base, and each gripper slides along the sliding groove. Each gripper is threadedly connected to the bidirectional lead screw, and several abutting rubber strips are provided at the end of each gripper. The gripper is the clamping output end of the clamping part.

[0020] Furthermore, each of the translation mechanisms includes a movable plate disposed on the translation mechanism, a telescopic cylinder is fixedly disposed on the movable plate, and a hot-melt connector is connected to the telescopic output end of the telescopic cylinder, and the movable plate is the translation output end of the translation mechanism.

[0021] Furthermore, the cleaning mechanism includes a support frame fixedly installed at the outlet, a cleaning cylinder rotatably installed on the support frame, a large gear ring coaxially sleeved on the cleaning cylinder, a third motor fixedly installed on the support frame, and a small gear coaxially fixedly installed on the output end of the third motor, wherein the small gear meshes with the large gear ring.

[0022] A method for preparing durable sewing thread includes the following steps:

[0023] S1: Place the device body between the twisting machine and the drum, thread the sewing thread body through the inlet of the first side plate, and then lead the sewing thread body out from the outlet after winding it around each guide wheel in sequence.

[0024] S2: The starting power mechanism drives the two sliding plates to move away from each other, increasing the distance between the two sliding plates and maximizing the length of the sewing thread body passing through each guide wheel;

[0025] S3: Start the twisting machine to tighten the sewing thread body against the guide roller, thereby compressing the elastic support;

[0026] S4: When a wire breakage occurs, the photosensitive sensor transmits a wire breakage signal to the controller, and the controller controls the corresponding clamping part to clamp the broken wire at the corresponding breakage point; then the moving part drives the clamping part to move to the wire guide wheel at the breakage point; and at the same time, the translation mechanism drives the hot melt connector to the breakage point, and the hot melt connector repairs the broken wire.

[0027] S5: The clamping part loosens the sewing thread body, allowing it to rewrap around the guide wheel;

[0028] S6: Cleaning mechanism cleans the broken wire interface:

[0029] S7: The disconnection has been resolved and the device has been reset.

[0030] The beneficial effects of this invention compared to the prior art are:

[0031] Firstly, this device can automatically detect broken wires and then automatically repair them, thus improving production efficiency.

[0032] Secondly, this device automatically repairs broken wires, saving the time and effort of traditional manual repairs, and also avoiding the risk of injury caused by human error during manual operation.

[0033] Thirdly, this device can repair broken lines without shutting down the machine, reducing industrial losses and improving production efficiency. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the three-dimensional structure of the embodiment. Figure 1 ;

[0035] Figure 2 This is a schematic diagram of the three-dimensional structure of the embodiment. Figure 2 ;

[0036] Figure 3 This is a schematic diagram of the three-dimensional structure of the embodiment. Figure 3 ;

[0037] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0038] Figure 5 This is a three-dimensional structural diagram of the power mechanism in the embodiment;

[0039] Figure 6 This is a front view of an embodiment;

[0040] Figure 7 yes Figure 6 A magnified schematic diagram of the structure at point B in the middle;

[0041] Figure 8 This is an exploded three-dimensional structural diagram of the elastic support in the embodiment;

[0042] Figure 9 This is a three-dimensional structural diagram of the clamping device in the embodiment;

[0043] Figure 10 This is a three-dimensional structural diagram of the sliding guide rail in the embodiment;

[0044] Figure 11 yes Figure 10 Enlarged schematic diagram of the structure at point C;

[0045] Figure 12 This is a front view of the sliding guide rail in the embodiment;

[0046] Figure 13 This is an exploded three-dimensional structural diagram of the clamping mechanism in the embodiment.

[0047] The diagram is labeled as follows: 1. Device body; 2. First side plate; 3. Rectangular through hole; 4. Thread inlet; 5. Sewing thread body; 6. Second side plate; 7. Thread outlet; 8. Cleaning mechanism; 9. Support frame; 10. Cleaning cylinder; 11. Large gear ring; 12. Small gear; 13. Third motor; 14. Power mechanism; 15. Power motor; 16. Sliding seat; 17. Transmission rod; 18. Fixed seat; 19. Threaded rod; 20. Supporting vertical plate; 21. Back plate; 22. Sliding track; 23. Limiting groove; 24. Translation mechanism; 25. Movable plate; 26. Telescopic cylinder; 27. Hot melt connector; 28. Supporting horizontal plate; 29. ​​Anchor; 3 0. Arc-shaped plate; 31. Photosensitive sensor; 32. Limiting protrusion; 33. Support leg; 34. Clamping mechanism; 35. Moving part; 36. Sliding block; 37. Spring screw; 38. U-shaped bracket; 39. Central shaft; 40. Rolling rubber wheel; 41. First motor; 42. Clamping part; 43. Support base; 44. Sliding groove; 45. Support side plate; 46. Second motor; 47. Bidirectional lead screw; 48. Gripper; 49. Contact rubber strip; 50. Support mechanism; 51. Sliding cross plate; 52. Elastic support; 53. Support tube; 54. Movable tube; 55. Pressure spring; 56. Adapter; 57. Support shaft; 58. Guide wheel. Implementation

[0048] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0049] refer to Figures 1 to 13 ;

[0050] An apparatus for preparing durable sewing thread, comprising:

[0051] The device body 1 is arranged in a horizontal state. The device body 1 is provided with a first side plate 2 and a second side plate 6 arranged in a symmetrical state. The first side plate 2 is provided with an inlet 4, and the second side plate 6 is provided with an outlet 7. A cleaning mechanism 8 is provided at the outlet 7.

[0052] Two support horizontal plates 28 are fixedly arranged symmetrically between the first side plate 2 and the second side plate 6. Each support horizontal plate 28 is provided with a plurality of abutments 29, and each abutment 29 is provided with a photosensitive sensor 31.

[0053] The support mechanism 50 is disposed between the first side plate 2 and the second side plate 6. It includes two sliding horizontal plates 51 that are symmetrically and movably disposed between the first side plate 2 and the second side plate 6. Each sliding horizontal plate 51 is provided with a plurality of elastic supports 52 at intervals. All the elastic supports 52 are divided into upper and lower groups and are staggered along the length of the sliding horizontal plate 51. Each elastic support 52 is provided with a guide wheel 58. Each guide wheel 58 is wound with a sewing thread body 5. Each photosensitive sensor 31 is correspondingly disposed with one guide wheel 58.

[0054] The power mechanism 14 is located between the first side plate 2 and the second side plate 6, and the power mechanism 14 is connected to the two sliding cross plates 51 in a transmission manner.

[0055] A back plate 21 is fixedly disposed between the first side plate 2 and the second side plate 6. A sliding track 22 and two translation mechanisms 24 symmetrically disposed at the top and bottom of the back plate 21 are fixedly disposed on the back plate 21. Each translation mechanism 24 is provided with a hot-melt connector 27. Each hot-melt connector 27 is connected to the translation output end of the translation mechanism 24. The sliding track 22 is serpentine and has an expansion portion at the position of each guide wheel 58.

[0056] Several clamping mechanisms 34 are arranged on the sliding track 22. Each clamping mechanism 34 includes a moving part 35 and a clamping part 42. The clamping part 42 has a clamping output end for clamping the sewing thread body 5. The moving part 35 has a moving output end for driving the clamping part 42 to move along the sliding track 22. When not in operation, each clamping mechanism 34 stops between two sliding cross plates 51.

[0057] When the device is in operation, the device body 1 is first placed between the twisting machine and the spool. The sewing thread body 5 is passed through the inlet 4 of the first side plate 2, and then the sewing thread body 5 is led out from the outlet 7 after passing through each guide wheel 58 in sequence. Then, the power mechanism 14 is activated, which drives the two sliding plates 51 to move away from each other, increasing the distance between the two sliding plates 51 and maximizing the length of the sewing thread body 5 passing through each guide wheel 58. After that, the twisting machine is activated, which tightens the sewing thread body 5 against the guide wheel 58, thereby compressing the elastic support 52. When a thread breakage occurs, the tension of the sewing thread body 5 disappears, and at this time, all the elastic supports 52 drive the guide wheels 58 to press the sewing thread against the tensioner 29.

[0058] It should be noted that each photosensitive sensor 31 corresponds to a guide wheel 58. When the photosensitive sensor 31 detects a guide wheel 58, it is considered that a thread break has occurred on that guide wheel 58. Under normal circumstances, the sewing thread body 5 is wrapped around the guide wheel 58, and the photosensitive sensor 31 cannot detect the signal transmitted by the guide wheel 58. Each clamping mechanism 34 is equipped with a controller, and the signal transmitted by the photosensitive sensor 31 will be transmitted to the clamping mechanisms 34 located on both sides of the guide wheel 58 where the thread break has occurred. When the controllers on these two clamping mechanisms 34 receive the signal transmitted by the photosensitive sensor 31, the controllers first control the clamping part 42 to clamp the sewing thread body 5, and then the controllers control the moving part 35 to start, driving the clamping part 42 to move towards the guide wheel 58 where the thread break has occurred. During this process, the power mechanism 14 drives the two sliding cross plates 51 to move closer to each other, causing the sewing thread body 5 to loosen. It should also be noted that when a moving part 35 moves along the sliding track 22 with a clamping part 42, it will only move to the expanding part of the sliding track 22 and will not move from one side of the expanding part to the other. When the two clamping mechanisms 34 move to the expanding part with the two ends of the broken thread, the translation mechanism 24 located on the side of the broken thread is activated. The translation mechanism 24 drives the hot melt connector 27 to the guide wheel 58 where the broken thread occurred. Then, the two clamping mechanisms 34 clamp the broken thread and move it close to the hot melt connector 27, and the hot melt connector 27 connects the broken thread. After that, the clamping part 42 releases the sewing thread body 5, and the power mechanism 14 drives the two sliding cross plates 51 to move away from each other again, tightening the sewing thread body 5, causing the sewing thread body 5 to wrap around the guide wheel 58 and complete the connection. After the connection is completed, the two clamping mechanisms 34 that participated in the connection reset. When the sewing thread body 5 passes the thread outlet 7 at the broken thread interface, the cleaning mechanism 8 moves to clean and flatten the broken thread interface.

[0059] To ensure that the device operates smoothly, the power mechanism 14 can drive the two sliding cross plates 51 to move away from or towards each other, and is specifically designed with the following features:

[0060] A supporting vertical plate 20 is provided between the first side plate 2 and the second side plate 6. The supporting vertical plate 20 is fixedly installed inside the device body 1. Rectangular through holes 3 are provided on both the first side plate 2 and the second side plate 6. Both ends of each sliding horizontal plate 51 slide along the rectangular through holes 3. The power mechanism 14 includes a power motor 15 fixedly installed on the supporting vertical plate 20, a threaded rod 19 coaxially fixedly connected to the output end of the power motor 15, a fixed seat 18 fixedly installed on one side of the power motor 15, a sliding seat 16 movably installed between the fixed seat 18 and the power motor 15 and threadedly connected to the threaded rod 19, and two transmission rods 17 hinged to both ends of the sliding seat 16. The other end of each transmission rod 17 is hinged to the sliding horizontal plate 51, and the threaded rod 19 is rotatably connected to the fixed seat 18.

[0061] When the device is running, the power motor 15 starts and drives the threaded rod 19 to rotate. The threaded rod 19 is threadedly connected to the sliding seat 16, causing the sliding seat 16 to move along the axis of the threaded rod 19. Since the sliding seat 16 is connected to the two sliding horizontal plates 51 through the transmission rod 17, the movement of the sliding seat 16 along the axis of the threaded rod 19 is converted into the movement of the two sliding horizontal plates 51 moving closer to or further away from each other.

[0062] To demonstrate the detailed structure of the elastic support 52, the following features are specifically included:

[0063] Each of the elastic supports 52 includes a support tube 53 fixedly mounted on a sliding cross plate 51, a movable tube 54 coaxially slidably mounted in the support tube 53, a pressure spring 55 coaxially mounted in the support tube 53, an adapter 56 fixedly mounted at the end of the movable tube 54, and a support shaft 57 fixedly mounted on the adapter 56. The guide wheel 58 is coaxially rotatably connected to the support shaft 57, and one end of the pressure spring 55 abuts against the support tube 53 and the other end abuts against the movable tube 54.

[0064] When the device is running, the sewing thread body 5 wraps around the guide wheel 58. When driven by the twisting machine, the sewing thread body 5 will cause the guide wheel 58 to rotate due to its contact with the guide wheel 58. When the sewing thread body 5 is taut, it applies pressure to the guide wheel 58, causing the pressure spring 55 to be compressed. When a thread breakage occurs, the sewing thread body 5 no longer applies pressure to the guide wheel 58, and the pressure spring 55 returns to its original position. This causes the guide wheel 58 to press the sewing thread onto the tensioner 29, making it easier for the subsequent clamping mechanism 34 to clamp the broken thread for repair.

[0065] To ensure the device operates smoothly, the clamping device 29 can work with the guide wheel 58 to press the sewing thread body 5 firmly, and is specifically designed with the following features:

[0066] Each of the aforementioned clamps 29 includes a support leg 33 fixedly mounted on the support plate 28, an arc plate 30 fixedly mounted on the support leg 33, and a plurality of limiting protrusions 32 uniformly arranged along the arc direction of the arc plate 30. The photosensitive sensor 31 is fixedly mounted in the middle of the arc plate 30.

[0067] When a thread breakage occurs, the pressure spring 55 releases its pressure, causing the guide wheel 58 to extend and press the sewing thread body 5 against the arc plate 30. The limiting protrusion 32 provided on the arc plate 30 can better increase the friction between the sewing thread body 5 and the arc plate 30, so that the guide wheel 58 can press the sewing thread body 5 more tightly. When one of the guide wheels 58 is pressed against the arc plate 30 by the pressure spring 55, the photosensitive sensor 31 located on the arc plate 30 detects the signal of the guide wheel 58, which is regarded as a thread breakage at this point.

[0068] To ensure that the moving part 35 can run along the sliding track 22 during operation of the device, it is specifically configured with the following features:

[0069] Each of the moving parts 35 includes two sliding blocks 36 symmetrically slidably disposed on the sliding track 22, spring screws 37 fixedly disposed on each sliding block 36, a U-shaped bracket 38 fixedly disposed on the top of the two sliding blocks 36, a central shaft 39 rotatably disposed on the U-shaped bracket 38, a rolling rubber wheel 40 coaxially fixedly disposed on the central shaft 39, and a first motor 41 fixedly disposed on one side of the U-shaped bracket 38. Limiting grooves 23 are provided on both sides of the sliding track 22. The central shaft 39 is coaxially fixedly connected to the rotating shaft of the first motor 41. The rolling rubber wheel 40 abuts against the sliding track 22. The movable head of each spring screw 37 abuts against the inner wall of the limiting groove 23. The U-shaped bracket 38 is the moving output end of the moving part 35.

[0070] When the device is running, the first motor 41 drives the central shaft 39 to rotate, the central shaft 39 rotates and drives the rolling rubber wheel 40 to rotate, the rolling rubber wheel 40 rotates and thus drives the U-shaped bracket 38 to move along the sliding track 22. When the U-shaped bracket 38 moves along the sliding track 22, the movable heads of the two spring screws 37 are locked in the limit slide groove 23 to ensure the stability of the device operation.

[0071] To demonstrate the detailed structure of the clamping part 42, the following features are specifically provided;

[0072] Each clamping part 42 includes a support base 43 fixedly mounted on a U-shaped bracket 38, support side plates 45 fixedly mounted at both ends of the support base 43, a second motor 46 fixedly mounted on one support side plate 45, a bidirectional lead screw 47 rotatably mounted between the two support side plates 45, and two grippers 48 symmetrically mounted on the bidirectional lead screw 47. The output shaft of the second motor 46 is coaxially fixedly connected to the bidirectional lead screw 47. A sliding groove 44 is provided in the middle of the support base 43. Each gripper 48 slides along the sliding groove 44. Each gripper 48 is threadedly connected to the bidirectional lead screw 47. Several abutting rubber strips 49 are provided at the end of each gripper 48. The gripper 48 is the clamping output end of the clamping part 42.

[0073] When the device is running, the second motor 46 drives the bidirectional lead screw 47 to rotate. The rotation of the bidirectional lead screw 47 drives the two grippers 48 to move closer or further apart along the sliding groove 44. When the two grippers 48 move closer together to clamp the sewing thread body 5, the contact rubber strip 49 can firmly clamp the grippers 48 and prevent the sewing thread body 5 from coming off the grippers 48.

[0074] In order for the translation mechanism 24 to drive the hot-melt connector 27 to the broken wire location for wiring, the following features are specifically provided:

[0075] Each of the translation mechanisms 24 includes a movable plate 25 disposed on the translation mechanism 24. A telescopic cylinder 26 is fixedly disposed on the movable plate 25. A hot-melt connector 27 is connected to the telescopic output end of the telescopic cylinder 26. The movable plate 25 is the translation output end of the translation mechanism 24.

[0076] When the device is running, the translation mechanism 24 drives the movable plate 25 to the broken wire location. Then, the telescopic cylinder 26 drives the hot melt connector 27 to a certain height, so that the hot melt connector 27 can come into contact with the broken wire caused by the two clamping mechanisms 34, thereby connecting the broken wire through the hot melt connector 27. After the wiring is completed, the telescopic cylinder 26 drives the hot melt connector 27 to reset, and the moving mechanism drives the movable plate 25 to reset.

[0077] To demonstrate the detailed structure of the cleaning mechanism 8, the following features are specifically included:

[0078] The cleaning mechanism 8 includes a support frame 9 fixedly installed at the outlet 7, a cleaning cylinder 10 rotatably installed on the support frame 9, a large gear ring 11 coaxially sleeved on the cleaning cylinder 10, a third motor 13 fixedly installed on the support frame 9, and a small gear 12 coaxially fixedly installed on the output end of the third motor 13. The small gear 12 and the large gear ring 11 mesh with each other.

[0079] When the device is running, the third motor 13 drives the pinion 12 to rotate, the pinion 12 meshes with the large gear ring 11 to rotate, and the large gear ring 11 drives the cleaning cylinder 10 to rotate, thereby cleaning the broken thread interface on the sewing thread body 5 pulled out through the thread outlet 7.

[0080] A method for preparing durable sewing thread includes the following steps:

[0081] S1: Place the device body 1 between the twisting machine and the drum, insert the sewing thread body 5 through the inlet 4 of the first side plate 2, and then lead the sewing thread body 5 out from the outlet 7 after winding it around each guide wheel 58 in sequence.

[0082] S2: The starting power mechanism 14 drives the two sliding horizontal plates 51 to move away from each other, increasing the distance between the two sliding horizontal plates 51, so that the length of the sewing thread body 5 passing through each guide wheel 58 reaches the maximum.

[0083] S3: Start the twisting machine to make the sewing thread body 5 taut against the guide roller 58, thereby compressing the elastic support 52;

[0084] S4: When a wire breakage occurs, the photosensitive sensor 31 transmits a wire breakage signal to the controller, and the controller controls the corresponding clamping part 42 to clamp the wire breakage at the corresponding breakage point; then the moving part 35 drives the clamping part 42 to move to the wire guide wheel 58 at the breakage point; and at the same time, the translation mechanism 24 drives the hot melt connector 27 to the breakage point, and the hot melt connector 27 repairs the wire breakage.

[0085] S5: The clamping part 42 loosens the sewing thread body 5, allowing it to be rewound onto the guide wheel 58;

[0086] S6: Cleaning mechanism 8 cleans the broken wire interface:

[0087] S7: The disconnection has been resolved and the device has been reset.

[0088] Working principle: When the device is running, the main body 1 is first placed between the twisting machine and the spool. The sewing thread 5 is passed through the inlet 4 of the first side plate 2, and then leads out from the outlet 7 after passing through each guide wheel 58. Then, the power motor 15 is started, driving the threaded rod 19 to rotate. The threaded rod 19 is threadedly connected to the sliding seat 16, causing the sliding seat 16 to move along the axis of the threaded rod 19. Since the sliding seat 16 is connected to the two sliding horizontal plates 51 through the transmission rod 17, the movement of the sliding seat 16 along the axis of the threaded rod 19 is converted into the two sliding horizontal plates 51 moving away from each other, increasing the distance between the two sliding horizontal plates 51, and maximizing the length of the sewing thread 5 passing through each guide wheel 58. After that, the twisting machine is started, causing the sewing thread 5 to tighten and press against the guide wheel 58, thereby compressing the pressure spring 55. When a thread breakage occurs, the tension of the sewing thread body 5 disappears, the pressure spring 55 releases pressure, causing the guide wheel 58 to extend and press the sewing thread body 5 against the arc plate 30. The limiting protrusion 32 provided on the arc plate 30 can better increase the friction between the sewing thread body 5 and the arc plate 30, so that the guide wheel 58 can press the sewing thread body 5 more tightly. When one of the guide wheels 58 is pressed against the arc plate 30 by the pressure spring 55, the photosensitive sensor 31 located on the arc plate 30 detects the signal of the guide wheel 58, which is regarded as a thread breakage at this point of the guide wheel 58.

[0089] It should be noted that each photosensitive sensor 31 corresponds to a guide wheel 58. When the photosensitive sensor 31 detects the guide wheel 58, it is considered that there is a break in the thread on the guide wheel 58. Under normal circumstances, the sewing thread body 5 is wrapped around the guide wheel 58, and the photosensitive sensor 31 cannot detect the signal transmitted by the guide wheel 58. Each clamping mechanism 34 is equipped with a controller, and the signal transmitted by the photosensitive sensor 31 will be transmitted to the clamping mechanisms 34 located on both sides of the guide wheel 58 where the thread break has occurred. When the controllers on the two clamping mechanisms 34 receive signals from the photosensitive sensor 31, they first control the second motor 46 to rotate the bidirectional lead screw 47. The rotation of the bidirectional lead screw 47 causes the two grippers 48 to move closer or further apart along the sliding groove 44. When the two grippers 48 move closer together to clamp the sewing thread body 5, the contact rubber strip 49 ensures a firm grip, preventing the sewing thread body 5 from detaching from the grippers 48. Then, the controller controls the first motor 41 to rotate the central shaft 39. The rotation of the central shaft 39 causes the rolling rubber wheel 40 to rotate, which in turn moves the U-shaped bracket 38 along the sliding track 22. As the U-shaped bracket 38 moves along the sliding track 22, the movable heads of the two spring screws 37 are engaged with the limiting slide groove 23, ensuring stable operation of the device. During this process, the power mechanism 14 drives the two sliding cross plates 51 to move closer together, causing the sewing thread body 5 to loosen.

[0090] It should also be noted that when a moving part 35 moves along the sliding track 22 with a clamping part 42, it will only move to the expanding section of the sliding track 22 and will not move from one side of the expanding section to the other. When the two clamping mechanisms 34 move to the expanding section with the two ends of the broken wire clamped, the translation mechanism 24 located on the side of the broken wire is activated, driving the movable plate 25 to the broken wire. Then, the telescopic cylinder 26 drives the hot melt connector 27 to a certain height, so that the hot melt connector 27 can come into contact with the broken wire brought by the two clamping mechanisms 34, thereby connecting the broken wire through the hot melt connector 27. After the connection is completed, the telescopic cylinder 26 drives the hot melt connector 27 to reset, and the moving mechanism drives the movable plate 25 to reset. Afterwards, the clamping part 42 releases the sewing thread body 5, and the power mechanism 14 drives the two sliding horizontal plates 51 to move away from each other again, tightening the sewing thread body 5, causing the sewing thread body 5 to wrap around the guide wheel 58 and complete the splicing. After the splicing is completed, the two clamping mechanisms 34 that participated in the splicing reset. When the sewing thread body 5 passes through the thread outlet 7 at the broken thread interface, the third motor 13 drives the pinion 12 to rotate. The pinion 12 meshes with the large gear ring 11 to rotate, and the large gear ring 11 drives the cleaning cylinder 10 to rotate, thereby cleaning the broken thread interface on the sewing thread body 5 pulled out through the thread outlet 7.

[0091] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An apparatus for preparing durable sewing thread, characterized in that, include: The device body (1) is set in a horizontal state. The device body (1) is provided with a first side plate (2) and a second side plate (6) in a symmetrical state. The first side plate (2) is provided with a thread inlet (4), and the second side plate (6) is provided with a thread outlet (7). A cleaning mechanism (8) is provided at the thread outlet (7). The cleaning mechanism (8) cleans the broken thread interface on the sewing thread body (5) pulled out through the thread outlet (7). Two support horizontal plates (28) are fixedly arranged symmetrically between the first side plate (2) and the second side plate (6). Each support horizontal plate (28) is provided with a plurality of abutments (29), and each abutment (29) is provided with a photosensitive sensor (31). The support mechanism (50) is located between the first side plate (2) and the second side plate (6), and includes two sliding horizontal plates (51) that are symmetrically and movably arranged between the first side plate (2) and the second side plate (6). Each sliding horizontal plate (51) is provided with a number of elastic supports (52) at intervals. All the elastic supports (52) are divided into upper and lower groups and are staggered along the length of the sliding horizontal plate (51). Each elastic support (52) is provided with a guide wheel (58). Each guide wheel (58) is wound with a sewing thread body (5). Each photosensitive sensor (31) is correspondingly arranged with one guide wheel (58). The power mechanism (14) is located between the first side plate (2) and the second side plate (6), and the power mechanism (14) is connected to the two sliding cross plates (51) in a transmission manner; A back plate (21) is fixedly disposed between the first side plate (2) and the second side plate (6). A sliding track (22) and two translation mechanisms (24) symmetrically disposed at the top and bottom of the back plate (21) are fixedly disposed on the back plate (21). Each translation mechanism (24) is provided with a hot melt connector (27). Each hot melt connector (27) is connected to the translation output end of the translation mechanism (24). The sliding track (22) is serpentine and has an expansion ring at the position of each guide wheel (58). Several clamping mechanisms (34) are arranged on the sliding track (22). Each clamping mechanism (34) includes a moving part (35) and a clamping part (42). The clamping part (42) has a clamping output end for clamping the sewing thread body (5). The moving part (35) has a moving output end for driving the clamping part (42) to move along the sliding track (22). Each clamping mechanism (34) stops between two sliding cross plates (51) when not in operation.

2. The apparatus for preparing durable sewing thread according to claim 1, characterized in that, A support vertical plate (20) is provided between the first side plate (2) and the second side plate (6). The support vertical plate (20) is fixedly installed inside the device body (1). A rectangular through hole (3) is provided on both the first side plate (2) and the second side plate (6). Both ends of each sliding horizontal plate (51) slide along the rectangular through hole (3). The power mechanism (14) includes a power motor (15) fixedly installed on the support vertical plate (20), a threaded rod (19) coaxially fixedly connected to the output end of the power motor (15), a fixed seat (18) fixedly installed on one side of the power motor (15), a sliding seat (16) movably installed between the fixed seat (18) and the power motor (15) and threadedly connected to the threaded rod (19), and two transmission rods (17) hinged to both ends of the sliding seat (16). The other end of each transmission rod (17) is hinged to the sliding horizontal plate (51), and the threaded rod (19) is rotatably connected to the fixed seat (18).

3. The apparatus for preparing durable sewing thread according to claim 2, characterized in that, Each of the elastic supports (52) includes a support tube (53) fixedly mounted on a sliding cross plate (51), a movable tube (54) slidably mounted coaxially in the support tube (53), a pressure spring (55) slidably mounted in the support tube (53), an adapter (56) fixedly mounted at the end of the movable tube (54), and a support shaft (57) fixedly mounted on the adapter (56). The guide wheel (58) is rotatably connected to the support shaft (57) on the same axis. One end of the pressure spring (55) abuts against the support tube (53) and the other end abuts against the movable tube (54).

4. The apparatus for preparing durable sewing thread according to claim 3, characterized in that, Each of the aforementioned clamps (29) includes a support leg (33) fixedly mounted on the support plate (28), an arc plate (30) fixedly mounted on the support leg (33), and a plurality of limiting protrusions (32) uniformly arranged along the arc direction of the arc plate (30). The photosensitive sensor (31) is fixedly mounted in the middle of the arc plate (30).

5. The apparatus for preparing durable sewing thread according to claim 4, characterized in that, Each of the moving parts (35) includes two sliding blocks (36) symmetrically slidably disposed on the sliding track (22), a spring screw (37) fixedly disposed on each sliding block (36), a U-shaped bracket (38) fixedly disposed on the top of the two sliding blocks (36), a central shaft (39) rotatably disposed on the U-shaped bracket (38), a rolling rubber wheel (40) coaxially fixedly disposed on the central shaft (39), and a first motor (41) fixedly disposed on one side of the U-shaped bracket (38). Limiting grooves (23) are provided on both sides of the sliding track (22). The central shaft (39) is coaxially fixedly connected to the rotating shaft of the first motor (41). The rolling rubber wheel (40) abuts against the sliding track (22). The movable head of each spring screw (37) abuts against the inner wall of the limiting groove (23). The U-shaped bracket (38) is the moving output end of the moving part (35).

6. The apparatus for preparing durable sewing thread according to claim 5, characterized in that, Each clamping part (42) includes a support base (43) fixedly mounted on a U-shaped bracket (38), support side plates (45) fixedly mounted at both ends of the support base (43), a second motor (46) fixedly mounted on one support side plate (45), a bidirectional lead screw (47) rotatably mounted between the two support side plates (45), and two grippers (48) symmetrically mounted on the bidirectional lead screw (47). The output shaft of the second motor (46) is coaxially fixedly connected to the bidirectional lead screw (47). A sliding groove (44) is provided in the middle of the support base (43). Each gripper (48) slides along the sliding groove (44). Each gripper (48) is threadedly connected to the bidirectional lead screw (47). Several abutting rubber strips (49) are provided at the end of each gripper (48). The gripper (48) is the clamping output end of the clamping part (42).

7. The apparatus for preparing durable sewing thread according to claim 6, characterized in that, Each of the translation mechanisms (24) includes a movable plate (25) disposed on the translation mechanism (24), and a telescopic cylinder (26) is fixedly disposed on the movable plate (25). A hot melt connector (27) is connected to the telescopic output end of the telescopic cylinder (26). The movable plate (25) is the translation output end of the translation mechanism (24).

8. The apparatus for preparing durable sewing thread according to claim 7, characterized in that, The cleaning mechanism (8) includes a support frame (9) fixedly installed at the outlet (7), a cleaning cylinder (10) rotatably installed on the support frame (9), a large gear ring (11) coaxially sleeved on the cleaning cylinder (10), a third motor (13) fixedly installed on the support frame (9), and a small gear (12) coaxially fixedly installed on the output end of the third motor (13). The small gear (12) and the large gear ring (11) mesh with each other.

9. A method for preparing a durable sewing thread, comprising using the apparatus for preparing a durable sewing thread as described in claim 1, characterized in that, Includes the following steps: S1: Place the device body (1) between the twisting machine and the drum, insert the sewing thread body (5) through the inlet (4) of the first side plate (2), and lead the sewing thread body (5) out from the outlet (7) after winding around each guide wheel (58) in sequence. S2: The starting power mechanism (14) drives the two sliding horizontal plates (51) to move away from each other, thereby increasing the distance between the two sliding horizontal plates (51) and making the length of the sewing thread body (5) passing through each guide wheel (58) reach its maximum. S3: Start the twisting machine to tighten the sewing thread body (5) against the guide roller (58), thereby compressing the elastic support (52); S4: When a wire break occurs, the photosensitive sensor (31) transmits a wire break signal to the controller, and the controller controls the corresponding clamping part (42) to clamp the wire break at the corresponding break point; then the moving part (35) drives the clamping part (42) to move to the wire guide wheel (58) at the break point; and at the same time, the translation mechanism (24) drives the hot melt connector (27) to the break point, and the hot melt connector (27) repairs the wire break. S5: The clamping part (42) loosens the sewing thread body (5) so that it is rewound onto the guide wheel (58); S6: Cleaning mechanism (8) cleans the broken wire interface: S7: The disconnection has been resolved and the device has been reset.

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