A sewing thread quality detection system

Abstract

The application discloses a sewing thread quality detection system and relates to the technical field of sewing thread production detection. A take-up and pay-off mechanism is fixedly connected between opposite sides of the take-up and pay-off mechanism, and a detection mechanism is fixedly connected to one side of the outer wall of the detection mechanism. In the application, the system drives a linkage rod through a micro air cylinder, cooperates with the movement of a moving block in a moving groove, accurately adjusts the diameter position relationship of the linkage rod on the outer wall of the gear, and further accurately adjusts the pulling size of the sewing thread clamped between two thread wheels. The application can adapt to the tension test requirements of different sewing threads and provide reliable data for evaluating the quality of the sewing thread. The cooperation of components such as the rotating pipe, the rotating rod and the inner thread roller enables the sewing thread to rotate horizontally and vertically during the test, solves the problem of position deviation of two ends caused by the tensioning of the sewing thread, ensures the stable position of the sewing thread during the test, and improves the accuracy and reliability of the test result.

Description

Technical Field

[0001] This invention relates to the field of sewing thread production and testing technology, specifically a sewing thread quality testing system. Background Technology

[0002] Sewing thread quality inspection is a crucial step in ensuring that sewing thread meets usage requirements and guarantees the quality of sewing products.

[0003] In the process of sewing thread quality inspection, existing testing equipment cannot effectively adjust the tension when the sewing thread is taut, which seriously affects the comprehensiveness and accuracy of sewing thread testing, and thus has an adverse impact on the quality assessment of sewing thread. In today's sewing thread production field, for high-end sewing products, in order to ensure the stability and reliability of sewing thread in actual use, it is necessary to conduct rigorous testing under specific taut tension conditions, simulating the tension environment of actual use, in order to accurately evaluate the various performance indicators of sewing thread and ensure that it will not break or unravel in subsequent sewing operations, thereby guaranteeing the quality of high-end products. However, the application scenarios of ordinary civilian sewing threads are relatively broad, mainly used for some common sewing needs in daily life. Their testing standards are relatively low, resulting in each type of sewing thread having its own suitable application scenarios and quality requirements. Existing sewing thread testing equipment has obvious limitations and cannot adjust the taut tension according to these diverse standards, resulting in inconsistent product quality. Incorrect assessments may also lead to relaxed quality control, thereby increasing the risk of quality problems after the products enter the market. Summary of the Invention

[0004] The purpose of this invention is to provide a sewing thread quality inspection system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sewing thread quality inspection system, comprising: a take-up and release mechanism, wherein an inspection mechanism is fixedly connected between opposite sides of the take-up and release mechanism, and an inspection component is fixedly connected to one side of the outer wall of the inspection mechanism;

[0006] The detection mechanism includes a mounting frame, gears, and a miniature cylinder;

[0007] The outer wall side of the gear is provided with a moving groove, and the outer wall side of the micro cylinder is fixedly connected with the outer wall side of the gear, the inner surface wall of the moving groove is slidably embedded with a moving block, the outer wall side of the moving block is fixedly installed with a linkage rod, and the top of the linkage rod is fixedly connected with the telescopic end of the micro cylinder, the outer surface wall of the linkage rod is movably sleeved with a transmission plate, the outer wall side of the transmission plate is provided with a rotating groove B, the inner surface wall of the rotating groove B is rotatably connected with a transfer rod, the outer surface wall of the transfer rod is movably sleeved with a long rod, the bottom of the long rod is fixedly connected with a linkage plate, the inside of the linkage plate is rotatably connected with two inner drive rods, and the outer surface wall of the two inner drive rods is fixedly sleeved with a wire wheel.

[0008] Preferably, the outer surface wall of the mounting frame is fixedly connected with two communication pipes, and the outer wall side of the mounting frame is provided with a drive rotating groove, and the outer surface wall of the drive rotating rod is rotatably connected in the inside of the drive rotating groove.

[0009] Preferably, the outer wall side of the two communication pipes is fixedly connected with a detection assembly, and the inside of the mounting frame is fixedly installed with a limiting seat, and the outer surface wall of the long rod is movably embedded in the inside of the limiting seat.

[0010] Preferably, the inside of the two communication pipes is provided with a rotating groove A, and the inner surface wall of the two rotating grooves A is rotatably connected with a limiting assembly.

[0011] Preferably, the two limiting assemblies each include a rotating pipe, a group of holes are pre-set in the inside of the two rotating pipes, and the inner surface wall of the two groups of holes is fixedly inserted with a bearing A.

[0012] Preferably, the inner surface wall of the two groups of bearings A is fixedly inserted with a rotating rod, the outer wall side of the two groups of rotating rods is fixedly connected with an annular plate, the inside of the two groups of annular plates is pre-provided with an annular groove, and the inner surface wall of the two groups of annular grooves is rotatably connected with an inner wire roller.

[0013] Preferably, the inside of the detection assembly is fixedly connected with an annular pipe, and the inner surface wall of the two annular pipes is fixedly installed with a visual detection device.

[0014] Preferably, the folding mechanism includes two bottom plates, a group of anti-skid pads are fixedly connected to the bottom of the two bottom plates, a group of mounting plates are fixedly installed on the top of the two bottom plates, a group of threaded mounting rods are fixedly installed on the top of the two groups of mounting plates, an L-shaped fixing plate is fixedly connected between the outer wall side of the two groups of mounting plates, and the outer wall side of the two groups of L-shaped fixing plates is fixedly connected with the outer surface wall of the mounting frame.

[0015] Preferably, the inner part of the two groups of threaded mounting rods is movably sleeved with an inner frame, the top of the two inner frames is fixedly connected with a driving motor, the rotating end of the two driving motors is fixedly connected with a linkage disc A, and the inner part of the two inner frames is fixedly installed with a group of detachable bearing seats.

[0016] Preferably, the inner surface wall of the two groups of detachable bearing seats is fixedly inserted with a winding roller, the outer wall of the two winding rollers is fixedly connected with a linkage disc B on one side, the inner part of the linkage disc B is drivingly connected with a transmission belt, and the outer surface wall of the transmission belt is rotatably connected in the inner part of the linkage disc A.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] In the present application, the system drives the linkage rod through the micro-cylinder, cooperates the movement of the moving block in the moving groove, accurately adjusts the diameter position relationship of the linkage rod on the outer surface wall of the gear, and then accurately adjusts the pulling size of the sewing thread clamped between the two thread wheels, which can adapt to the tension test requirements of different sewing threads and provide reliable data for evaluating the quality of the sewing thread.

[0019] In the present application, the rotating pipe, rotating rod, inner thread roller and other components work cooperatively, so that the sewing thread can realize horizontal and vertical rotation during testing, reduce the problem of position deviation of both ends caused by tight sewing thread, ensure the stability of the position of the sewing thread during testing, and improve the accuracy and reliability of the test results.

[0020] In the present application, the winding roller is provided with stable rotating support, and the winding roller is convenient to disassemble and replace, which improves the maintenance efficiency and flexibility of the equipment, and reduces the difficulty and cost of equipment maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front view structure perspective view of the sewing thread quality detection system in the present application;

[0022] Figure 2 It is a test structure plan view of the sewing thread quality detection system in the present application;

[0023] Figure 3 It is a winding and unwinding mechanism perspective view of the sewing thread quality detection system in the present application;

[0024] Figure 4 It is a detection mechanism sectional plan view of the sewing thread quality detection system in the present application;

[0025] Figure 5 It is a detection assembly sectional plan view of the sewing thread quality detection system in the present application;

[0026] Figure 6It is the detection mechanism sectional view perspective split diagram in the sewing thread quality detection system of the application;

[0027] Figure 7 It is the internal perspective split diagram of the detection mechanism in the sewing thread quality detection system of the application;

[0028] Figure 8 It is the internal partial perspective view of the detection mechanism in the sewing thread quality detection system of the application;

[0029] Figure 9 It is the A structure enlarged view in the sewing thread quality detection system of the application; Figure 8

[0030] Figure 10 It is the partial detection mechanism sectional view perspective split diagram in the sewing thread quality detection system of the application;

[0031] Figure 11 It is the limiting component sectional view perspective split diagram in the sewing thread quality detection system of the application.

[0032] In the figure: 1, take-up mechanism; 11, bottom plate; 111, non-slip pad; 12, mounting plate; 121, threaded mounting rod; 13, inner frame; 131, drive motor; 132, linkage disc A; 133, detachable bearing seat; 14, winding roller; 141, linkage disc B; 142, transmission belt; 15, L-shaped fixed plate; 2, detection mechanism; 21, mounting frame; 211, drive groove; 22, drive rod; 221, gear; 222, moving groove; 223, communication pipe; 2231, rotating groove A; 23, micro air cylinder; 24, linkage rod; 241, moving block; 25, transmission plate; 251, rotating groove B; 252, transfer rod; 26, long rod; 27, limiting seat; 28, linkage plate; 281, inner drive rod; 282, thread wheel; 29, limiting component; 291, rotating pipe; 292, hole; 293, bearing A; 294, rotating rod; 295, annular plate; 296, annular groove; 297, inner thread roller; 3, detection component; 301, annular pipe; 302, visual detection equipment. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application,

[0034] Embodiment one, refer to Figures 1-11 ​As shown: the present application provides a sewing thread quality detection system, comprising: a take-up mechanism 1, the opposite side of the take-up mechanism 1 is fixedly connected with a detection mechanism 2, and the outer wall of the detection mechanism 2 is fixedly connected with a detection assembly 3;

[0035] The detection mechanism 2 comprises an installation frame 21, a gear 221 and a micro air cylinder 23.

[0036] The outer wall of the gear 221 is provided with a moving groove 222, and the outer wall of the micro air cylinder 23 is fixedly connected with the outer wall of the gear 221. The inner surface wall of the moving groove 222 is slidably embedded with a moving block 241. The outer wall of the moving block 241 is fixedly installed with a linkage rod 24, and the top of the linkage rod 24 is fixedly connected with the telescopic end of the micro air cylinder 23. The outer surface wall of the linkage rod 24 is movably sleeved with a transmission plate 25. The outer wall of the transmission plate 25 is provided with a rotating groove B251. The inner surface wall of the rotating groove B251 is rotatably connected with a transfer rod 252. The outer surface wall of the transfer rod 252 is movably sleeved with a long rod 26. The bottom of the long rod 26 is fixedly connected with a linkage plate 28. The inside of the linkage plate 28 is rotatably connected with two inner drive rods 281. The outer surface wall of the two inner drive rods 281 is fixedly sleeved with a thread wheel 282.

[0037] In this embodiment, first, the device is in use, the sewing thread is wound between the outer surface wall of one of the two winding rollers 14, then it is placed between the inner surface wall of the two groups of detachable bearing seats 133, then one end of the sewing thread is inserted between the inner surface wall of the two groups of inner thread rollers 297, and finally the sewing thread is wound between the outer surface wall of the other of the two winding rollers 14, and when the middle position of the sewing thread passes through the middle position of the detection mechanism 2, the sewing thread will be clamped between the outer surface wall of the two thread wheels 282. Under the action of the synchronizer, the two drive motors 131 are kept rotating at the same frequency and in the same direction. The two drive motors 131 can drive the linkage disc A132 to rotate under the rotation. Due to the mutual transmission of the linkage disc A132, the transmission belt 142 and the linkage disc B141, the two winding rollers 14 can be respectively self-rotated in each group of detachable bearing seats 133, so as to complete the process of winding and unwinding the sewing thread on the outer surface wall of the two winding rollers 14.

[0038] In the second embodiment, according to Figures 1-2 and Figures 4-11 The detection mechanism 2 comprises an installation frame 21, a gear 221 and a micro air cylinder 23.

[0039] The outer wall side of the gear 221 is provided with a moving groove 222, and the outer wall side of the micro cylinder 23 is fixedly connected with the outer wall side of the gear 221. The inner surface wall of the moving groove 222 is slidably embedded with a moving block 241. The outer wall side of the moving block 241 is fixedly installed with a linkage rod 24, and the top of the linkage rod 24 is fixedly connected with the telescopic end of the micro cylinder 23. The outer surface wall of the linkage rod 24 is movably sleeved with a transmission plate 25. The outer wall side of the transmission plate 25 is provided with a rotating groove B251. The inner surface wall of the rotating groove B251 is rotatably connected with a transfer rod 252. The outer surface wall of the transfer rod 252 is movably sleeved with a long rod 26. The bottom of the long rod 26 is fixedly connected with a linkage plate 28. The inside of the linkage plate 28 is rotatably connected with two inner drive rods 281. The outer surface wall of the two inner drive rods 281 is fixedly sleeved with a wire wheel 282. The outer surface wall of the mounting frame 21 is fixedly communicated with two communication pipes 223. The outer wall side of the mounting frame 21 is provided with a drive rotating groove 211, and the outer surface wall of the drive rotating rod 22 is rotatably connected in the inside of the drive rotating groove 211. The outer wall side of the two communication pipes 223 is fixedly communicated with a detection assembly 3. The inside of the mounting frame 21 is fixedly installed with a limiting seat 27, and the outer surface wall of the long rod 26 is movably embedded in the inside of the limiting seat 27. The inside of the two communication pipes 223 is provided with a rotating groove A2231. The inner surface wall of the two rotating grooves A2231 is rotatably connected with a limiting assembly 29. The two limiting assemblies 29 each include a rotating pipe 291. The inside of the two rotating pipes 291 is pre-provided with a group of holes 292. The inner surface wall of the two groups of holes 292 is fixedly inserted with a bearing A293. The inner surface wall of the two groups of bearings A293 is fixedly inserted with a rotating rod 294. The outer wall side of the two groups of rotating rods 294 is fixedly connected with an annular plate 295. The inside of the two groups of annular plates 295 is pre-provided with an annular groove 296. The inner surface wall of the two groups of annular grooves 296 is rotatably connected with an inner wire roller 297.

[0040] The inside of the detection assembly 3 is fixedly communicated with an annular pipe 301. The inner surface wall of the two annular pipes 301 is fixedly installed with a visual detection device 302.

[0041] In this embodiment, since the sewing thread is clamped between the inner walls of the two thread wheels 282, the driving rod 22 can rotate between the inner walls of the driving groove 211 when the external driving device drives, the gear 221 rotates during the rotation of the driving rod 22, the transmission plate 25 is rotatably connected between the outer walls of the linkage rod 24, the intermediate rod 252 is also rotatably connected in the rotating groove B251, and the long rod 26 can also be rotatably connected between the outer walls of the intermediate rod 252, which can form an up-down embedding movement state in the limiting seat 27, so as to pull the components fixed to the bottom of the long rod 26 to form an up-down linkage state, and the two inner driving rods 281 are rotatably connected in the linkage plate 28, so as to form an inward rotation process of the thread wheels 282 fixed to the outer walls of the two inner driving rods 281. In this process, the two thread wheels 282 and the sewing thread clamped therebetween can move up and down, so as to test the tension of the sewing thread between a certain distance.

[0042] In this process, when the tension of the sewing thread needs to be adjusted, the micro cylinder 23 is first energized, and the output end of the micro cylinder 23 is telescopic when it is in the energized state, so as to push the linkage rod 24 to move up and down, and the moving block 241 can move in the embedding movement in the moving groove 222 to cooperate, so as to adjust the diameter position relationship of the linkage rod 24 with the outer wall of the gear 221, and the relative movement of the corresponding components, so as to adjust the tension of the sewing thread clamped between the two thread wheels 282.

[0043] In this embodiment, according to Figures 1-4 and Figures 10-11 It is shown that the winding and unwinding mechanism 1 comprises two bottom plates 11, the bottom of each of the two bottom plates 11 is fixedly connected with a set of anti-skid pads 111, the top of each of the two bottom plates 11 is fixedly installed with a set of installation plates 12, the top of each of the two sets of installation plates 12 is fixedly installed with a threaded installation rod 121, the outer wall side between the two sets of installation plates 12 is fixedly connected with an L-shaped fixing plate 15, and the outer wall side of the two sets of L-shaped fixing plates 15 is fixedly connected with the outer wall of the installation frame 21, the inside of each of the two sets of threaded installation rods 121 is movably sleeved with an inner frame 13, the top of each of the two inner frames 13 is fixedly connected with a driving motor 131, the rotating end of each of the two driving motors 131 is fixedly connected with a linkage disc A 132, each of the two inner frames 13 is fixedly installed with a set of detachable bearing seats 133, the inner wall of each of the two sets of detachable bearing seats 133 is fixedly inserted with a winding roller 14, the outer wall side of each of the two winding rollers 14 is fixedly connected with a linkage disc B 141, the inside of the linkage disc B 141 is drivingly connected with a transmission belt 142, and the outer wall of the transmission belt 142 is rotatably connected in the inside of the linkage disc A 132.

[0044] In this embodiment, during the test, the two ends of the sewing thread are clamped in the inner line rollers 297 respectively. When the sewing thread is in a taut state, the positional relationship between the two ends will be offset. During this process, since the rotating tube 291 is rotationally connected between the inner walls of the rotating groove A2231, it can keep the entire limiting assembly 29 in a state of circular rotation. During this process, the two sets of rotating rods 294 can produce self-rotation inside the bearings A293. Since the inner line rollers 297 are rotationally connected inside the annular groove 296, and the two sets of inner line rollers 297 are also in a meshing rotation state with each other, when the sewing thread clamped in the two sets of inner line rollers 297 achieves a horizontal and vertical rotation, it reduces the problem of positional offset of the two ends caused by the taut sewing thread. Finally, before the sewing thread is wound up, it will pass through the inside of the detection assembly 3, and according to the quality standards and production requirements of the sewing thread, the burr judgment standard is set. The sewing thread after tension will be detected, and the detection result will be fed back to the production control system. For unqualified sewing thread, the system can issue an alarm signal to remind the operator to handle it.

[0045] The working principle of the entire mechanism is as follows: Before using the equipment, the first step is to properly wind and place the sewing thread. The operator needs to wind the sewing thread around the outer wall of one of the two take-up rollers 14, and keep the two take-up rollers 14 as the sewing thread take-up and take-down components. After winding, the take-up roller 14 with the sewing thread is placed between the inner walls of the two sets of detachable bearing seats 133. The detachable bearing seats 133 not only provide stable rotation support for the take-up roller 14, but also facilitate the disassembly and replacement of the take-up roller 14 when needed, improving the maintenance efficiency and flexibility of the equipment. Next, one end of the sewing thread is inserted between the inner walls of the two sets of inner thread rollers 297. The function of the inner thread rollers 297 is to support the two ends of the sewing thread during the test. The sewing thread is secured and guided to ensure it remains stable throughout the test. Finally, it is wound around the outer wall of one of the two take-up rollers 14. This completes the initial installation of the sewing thread in the equipment, forming a complete loop, ready for subsequent take-up, undoing, and tensile tests. When the middle of the sewing thread passes inside the detection mechanism 2, it is clamped between the outer walls of the two thread rollers 282. The surfaces of the thread rollers 282 are specially treated to provide good rolling friction, ensuring stable clamping of the sewing thread during the test and preventing slippage or detachment. After the sewing thread installation is complete, the synchronizer is then activated to maintain... Two drive motors 131 rotate at the same frequency and in the same direction, thus maintaining the sewing thread at a certain length during the take-up and undoing process. When the two drive motors 131 start rotating, they drive the linkage plate A132 to rotate. The linkage plate A132 can transmit the power of the drive motors 131 to subsequent components. Due to the mutual transmission between the linkage plate A132, the transmission belt 142, and the linkage plate B141, the two take-up rollers 14 ultimately achieve self-rotation within each set of detachable bearing seats 133. This ingenious transmission system design enables the two take-up rollers 14 to rotate synchronously and stably, thereby completing the take-up and undoing process of the sewing thread on the outer walls of the two take-up rollers 14. In this process, The sewing thread flows between the two take-up rollers 14, providing the necessary conditions for subsequent tensile testing. The tensile test is conducted simultaneously during the thread winding and unwinding process. Since the sewing thread is clamped between the inner walls of the two thread rollers 282, when the external drive device is activated, the drive rod 22 rotates between the inner walls of the drive groove 211. The rotation of the drive rod 22 drives the gear 221 to rotate. The rotation of the gear 221 is transmitted to the linkage rod 24 via the transmission plate 25. The transmission plate 25 is rotatably connected between the outer walls of the linkage rod 24. The intermediate rod 252 on the other side is also rotatably connected inside the rotation groove B251. This connection method ensures effective power transmission and coordinated movement between components. Finally…The long rod 26 is rotationally connected between the outer walls of the middle transfer rod 252 and can form an up-and-down embedded moving state inside the limiting seat 27. The up-and-down movement of the long rod 26 pulls the assembly fixed to its bottom to move up and down. At the same time, the two inner drive rods 281 are rotationally connected inside the linkage plate 28, so that the thread wheel 282 fixed to one side of the outer wall of the linkage plate 28 forms an inward rotation process. In this process, the two thread wheels 282 and the sewing thread clamped between them move up and down, thereby testing the tension of the sewing thread within a certain distance. In this way, the tension of the sewing thread in actual use can be accurately simulated, providing reliable data for evaluating the quality of the sewing thread. In actual testing, different sewing threads may need different tension for testing. When the tension needs to be adjusted for different sewing threads, the micro pneumatic cylinder 23 needs to be powered first. The micro pneumatic cylinder 23 serves as a tension adjustment component. When the micro pneumatic cylinder 23 is in the powered state, its output end produces an extension, thereby pushing the linkage rod 24 to move up and down. The up-and-down movement of the linkage rod 24 is achieved by the embedded movement of the moving block 241 inside the moving groove 222. This design makes the movement of the linkage rod 24 more stable and accurate, and can accurately adjust its diameter position relationship with the outer wall of the gear 221. With the adjustment of the position of the linkage rod 24, the position of the corresponding assembly also moves relatively, finally achieving the adjustment of the tension of the sewing thread clamped between the two thread wheels 282. In this way, the equipment can adapt to the tension testing needs of different types of sewing thread, improving the versatility and applicability of the equipment. During testing, the two ends of the sewing thread are clamped inside the two sets of inner thread rollers 297. When the sewing thread is in a straightened state, due to the tension, the position relationship between the two ends will be offset. This positional offset will affect the accuracy of the test results, and even cause the sewing thread to break during testing. In order to solve this problem, the rotating tube 291 is rotationally connected between the inner walls of the rotating groove A2231, which can keep the limiting assembly 29 as a whole in a ring-shaped rotating state. In this process, the two sets of rotating rods 294 can produce self-rotation inside the bearing A293. At the same time, the inner thread rollers 297 are rotationally connected inside the annular groove 296, and the two sets of inner thread rollers 297 are in an engaged transmission state with each other, achieving clamping and transmission of the sewing thread, and also enabling the sewing thread clamped between the two sets of inner thread rollers 297 to rotate horizontally and vertically, thereby reducing the problem of positional offset of the two ends caused by the tensioning of the sewing thread. In this way, the equipment can ensure the stability of the position of the sewing thread during tension testing, improving the accuracy and reliability of the test results. In the entire sewing thread production and detection process, when the sewing thread is about to be wound, it passes through the inside of the detection assembly 3. Before this, according to the quality standards and specific production requirements of the sewing thread, when the sewing thread enters the inside of the detection assembly 3,The detection assembly 3 will check whether there is burr on the outer wall of the sewing thread and the specific condition of the burr, and will quickly feed back the detection result to the production control system. If the detection finds that a sewing thread does not meet the pre-set standard, i.e. there is burr exceeding the allowed range, the system will immediately issue an alarm signal to timely remind the on-site operator to pay attention to the unqualified product. After receiving the alarm, the operator can make corresponding treatment on the unqualified sewing thread according to the actual situation, such as rejecting, repairing or taking other necessary measures, so as to ensure that the sewing thread finally entering the winding link can meet the quality requirements and guarantee the product quality stability of the whole production process.

[0046] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can make modifications to the technical solutions recorded in the foregoing embodiments or make equivalent replacements to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sewing thread quality inspection system, comprising: The take-up and release mechanism (1) is characterized in that: a detection mechanism (2) is fixedly connected between opposite sides of the take-up and release mechanism (1), and a detection component (3) is fixedly connected to one side of the outer wall of the detection mechanism (2). The detection mechanism (2) includes a mounting frame (21), a gear (221), and a miniature cylinder (23); A movable groove (222) is provided on one side of the outer wall of the gear (221), and one side of the outer wall of the miniature cylinder (23) is fixedly connected to one side of the outer wall of the gear (221). A movable block (241) is slidably embedded in the inner surface of the movable groove (222). A linkage rod (24) is fixedly installed on one side of the outer wall of the movable block (241), and the top of the linkage rod (24) is fixedly connected to the telescopic end of the miniature cylinder (23). A transmission plate (25) is movably sleeved on the outer surface of the linkage rod (24). A rotating groove B (251) is provided on one side of the outer wall of the transmission plate (25). A central rotating rod (252) is rotatably connected to the inner surface of the rotating groove B (251). A long rod (26) is movably sleeved on the outer surface of the central rotating rod (252). A linkage plate (28) is fixedly connected to the bottom of the long rod (26). Two inner drive rods (281) are rotatably connected inside the linkage plate (28). A spool (282) is fixedly sleeved on the outer surface of the two inner drive rods (281). The outer wall of the mounting frame (21) is fixedly connected to two connecting pipes (223). A drive groove (211) is provided on one side of the outer wall of the mounting frame (21), and the outer wall of the drive rod (22) is rotatably connected to the inside of the drive groove (211). The outer walls of the two connecting pipes (223) are fixedly connected to the detection component (3), and the inner side of the mounting frame (21) is fixedly installed with the limiting seat (27), and the outer wall of the long rod (26) is movably embedded in the inside of the limiting seat (27); The interior of each of the two connecting pipes (223) is provided with a rotating groove A (2231), and the inner surface of each of the two rotating grooves A (2231) is rotatably connected with a limiting component (29). Both sets of the limiting components (29) include a rotating tube (291), and each of the two rotating tubes (291) has a set of holes (292) inside. The inner surface of each of the two sets of holes (292) is fixedly inserted with a bearing A (293). Rotating rods (294) are fixedly inserted into the inner walls of both sets of bearings A (293). Annular plates (295) are fixedly connected to one side of the outer walls of both sets of rotating rods (294). Annular grooves (296) are pre-set inside the two sets of annular plates (295). Inner rollers (297) are rotatably connected to the inner walls of the two sets of annular grooves (296).

2. The sewing thread quality inspection system according to claim 1, characterized in that: The detection component (3) is internally connected to an annular tube (301), and visual inspection devices (302) are fixedly installed on the inner walls of both annular tubes (301).

3. The sewing thread quality inspection system according to claim 2, characterized in that: The retractable mechanism (1) includes two base plates (11). A set of anti-slip pads (111) is fixedly connected to the bottom of each of the two base plates (11). A set of mounting plates (12) is fixedly installed on the top of each of the two sets of mounting plates (12). A threaded mounting rod (121) is fixedly installed on the top of each of the two sets of mounting plates (12). An L-shaped fixing plate (15) is fixedly connected between one side of the outer wall of each of the two sets of mounting plates (12). The outer wall of each of the two sets of L-shaped fixing plates (15) is fixedly connected to the outer wall of the mounting frame (21).

4. The sewing thread quality inspection system according to claim 3, characterized in that: An inner frame (13) is movably fitted between the two sets of threaded mounting rods (121). A drive motor (131) is fixedly connected to the top of each of the two inner frames (13). A linkage disc A (132) is fixedly connected to the rotating end of each of the two drive motors (131). A set of detachable bearing seats (133) is fixedly installed inside each of the two inner frames (13).

5. A sewing thread quality inspection system according to claim 4, characterized in that: The inner walls of both sets of detachable bearing seats (133) are fixedly fitted with take-up rollers (14), and the outer walls of the two take-up rollers (14) are fixedly connected to a linkage disk B (141). The internal drive of the linkage disk B (141) is connected to a drive belt (142), and the outer wall of the drive belt (142) is rotatably connected to the inside of the linkage disk A (132).

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