School uniform zipper performance testing device

Abstract

The invention relates to the technical field of zipper performance testing, in particular to a school uniform zipper performance testing device which comprises a detection table and a displayer arranged on the detection table and used for displaying data. According to the zipper detection device, through the arrangement of the structure, the zippers and the zippers stored on the storage frame can be automatically taken out, zipper bodies can be gradually clamped, the zipper detection device can be used for detecting the zippers, and the zipper detection device is convenient to use and high in practicability. After the zipper is pulled out, the upper electric telescopic cylinder can be controlled to start to push the zipper to move, the smoothness degree of the school uniform zipper is automatically detected, the zipper does not need to be clamped by detection personnel, a large number of zippers can be automatically tested, and the convenience performance of the device is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of zipper performance testing, and in particular to a school uniform zipper performance testing device. Background Art

[0002] Zippers are a common quick-closing component in modern life. Generally, zippers include a pair of zipper teeth and a zipper head that can close or open the pair of zipper teeth. They are widely used in various daily necessities such as clothing, bags, tents, etc. School uniforms are one of the clothes that often use zippers. The quality of a zipper is often judged by the tensile strength of the teeth after the zipper is closed. For some inferior zippers, the teeth often split when subjected to tension, which is not conducive to use. Therefore, the tensile strength of zippers needs to be tested after production.

[0003] The prior art discloses a zipper smoothness detection device and method with publication number CN114295355A. A pulling device is used to pull the end of the zipper belt, and a retaining device is used to limit the position of the zipper pull head, so that the zipper can be closed. During this process, a tension sensor is used to monitor the tension required to close the zipper. Depending on whether the tension exceeds a preset threshold, it is determined whether the smoothness meets the requirement. The smoothness of the zipper is detected, which can prevent defective products from being mixed into qualified products leaving the factory.

[0004] Although the above-mentioned device can detect the smoothness performance of the zipper, there are still some problems in the actual testing process. When testing the performance of the zipper, the tester is required to install the zipper on the testing device, and after the test, the tester is required to take out the zipper. When performing performance tests on a large number of zippers, the tester is required to frequently disassemble the zipper for testing, which is not only time-consuming and labor-intensive, but also greatly reduces the testing efficiency of the device.

[0005] Therefore, a school uniform zipper performance testing device is proposed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a school uniform zipper performance testing device.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: a school uniform zipper performance testing device, comprising a testing platform and a display arranged on the testing platform for displaying data, a storage frame is arranged next to the testing platform, a pair of fixed plates are slidably connected to the inner side of the storage frame, a number of partitions for placing zippers are equidistantly fixedly connected between the fixed plates, a blanking trough is arranged at the top of the testing platform, a number of the partitions are provided with limiting mechanisms for fixing the zipper, a side plate is fixedly connected to the inner side of the blanking trough, a fixed frame is fixedly connected to the top of the testing platform, a sliding block is arranged between the inner side of the fixed frame and the side wall of the side plate, a U-shaped plate is fixedly connected to the top of the side wall of the partition, a lower plate is fixedly connected to the side wall of the sliding block relative to the inner position of the U-shaped plate, a top groove is arranged at the top of the sliding block, an upper plate is slidably connected to the inner side of the top groove, a driving mechanism for driving the sliding block to move is arranged on the inner side of the fixed frame, and a detection mechanism for pulling out the zipper and releasing the clamping is arranged on the side plate.

[0008] In the above technical scheme, further, the detection mechanism includes a round rod, a reset spring is fixedly connected between the bottom end of the top groove and the bottom of the upper plate, a round hole is opened on the side wall of the upper plate, the round rod is slidably connected to the inner side of the round hole, and the sliding block is opened near the side plate on a vertical groove for the round rod to slide up and down, and the side plate side wall is opened with an L-shaped groove, and the side wall of the round rod is inserted into the inner side of the L-shaped groove, and the side wall of the bottom end of the L-shaped groove is opened with a lower inclined groove, and the top bottom of the L-shaped groove is opened with an upper inclined groove, and a straight groove is opened between the lower inclined groove and the upper inclined groove, and the top of the L-shaped groove is opened with an inward groove, and the connection between the groove and the inner side of the L-shaped groove is inclined, an upper spring is fixedly connected between the inner side of the round hole and the side wall of the round rod, and the end of the round rod near the side plate is set to a smooth arc surface.

[0009] In the above technical solution, further, the driving mechanism includes a driving motor, the driving motor is fixedly connected to the side wall of the fixed frame, a threaded rod is rotatably connected to the inner side of the fixed frame, a threaded hole is opened on the side wall of the sliding block, the threaded rod and the threaded hole are threadedly connected, and the output end of the driving motor passes through the inner side of the fixed frame and is fixedly connected to the side wall of the threaded rod.

[0010] In the above technical solution, further, the limiting mechanism includes a limiting rod, a rectangular hole is opened on the side of the partition close to the detection platform, a plurality of limiting rods are provided, and the plurality of limiting rods are slidably connected to the inner side of the rectangular hole, a lower spring is fixedly connected to the inner side of the rectangular hole and the side wall of the limiting rod, a hanging groove for hanging the zipper is opened on the top of the limiting rod, and the hanging groove is inclined close to the side of the detection platform.

[0011] In the above technical solution, further, a rear plate is fixedly connected to the top of the side wall of the sliding block, an upper electric telescopic cylinder is fixedly connected to the top of the rear plate, a tension detector is fixedly connected to the output end of the upper electric telescopic cylinder, and a pull rod is fixedly connected to the detection end of the tension detector, the pull rod side wall is fixedly connected to a guide rod, an electromagnet is fixedly connected to the pull rod side wall relative to a position below the guide rod, the guide rod side wall is set to a smooth arc surface, and the tension detector is electrically connected to the display through the controller.

[0012] In the above technical solution, further, a first touch sensor is fixedly connected through a side of the straight groove close to the upper inclined groove, a second touch sensor is fixedly connected through a bottom end of the upper inclined groove, and a third touch sensor is fixedly connected through an inner side of the groove.

[0013] In the above technical solution, further, a collecting box is provided on the inner side of the material dropping trough, and a baffle is fixedly connected to the side wall of the collecting box, a material dropping trough is opened on the top of the inspection table relative to the position below the U-shaped plate, and a top plate is fixedly connected to the inner side of the material dropping trough relative to the position next to the material dropping trough.

[0014] In the above technical solution, further, a slide groove is opened on the rear side of the storage frame, a slide plate is slidably connected to the rear side of the storage frame, the front side of the slide plate is fixedly connected to the rear side of one of the fixed plates through the slide groove, a pair of lower electric telescopic cylinders are fixedly connected to the rear side of the storage frame, and the output end of the lower electric telescopic cylinder is fixedly connected to the top of the slide plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can automatically take out the zipper and zipper stored on the storage frame and gradually clamp the zipper body through the arrangement of the driving mechanism, the detection mechanism and the limit mechanism. Then, when the zipper is pulled out, the upper electric telescopic cylinder can be controlled to start pushing the zipper to move, and the smoothness of the school uniform zipper can be automatically detected. There is no need for the detection personnel to clamp the zipper, and a large number of zippers can be automatically tested, which greatly improves the convenience of the device.

[0016] 2. The present invention can automatically release the clamping of the zipper and the limit of the zipper through the arrangement of the upper inclined groove, the drop groove and the collection box. The zipper can fall into the collection box below under its own gravity for unified collection and processing. There is no need for the inspector to take out the zipper, which further improves the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front three-dimensional structure of the testing device of the present invention; Figure 2 It is a rear perspective structural schematic diagram of the testing device of the present invention; Figure 3 It is a partial front structural schematic diagram of the fixing plate of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the side of the detection platform of the present invention; Figure 5 The appended Figure 4 A schematic diagram of the partially enlarged structure at center A; Figure 6 It is a schematic diagram of the overall appearance structure of the limit rod and the guide rod of the present invention; Figure 7 It is a schematic diagram of a three-dimensional structure of a sliding block of the present invention in full cross-section from the side; Figure 8 It is a schematic diagram of the front three-dimensional structure of the side panel of the present invention; Fig. 9 The appended Figure 8 A schematic diagram of the partially enlarged structure at B in the middle; Fig.10 It is a schematic diagram of the overall appearance structure of the driving mechanism and the sliding block of the present invention.

[0018] In the figure: 1. test table; 2. display; 3. storage frame; 4. fixed plate; 5. partition; 6. blanking chute; 7. side plate; 8. fixed frame; 9. sliding block; 10. U-shaped plate; 11. lower plate; 12. upper plate; 13. round rod; 14. return spring; 15. L-shaped groove; 16. lower inclined groove; 17. upper inclined groove; 18. straight groove; 19. groove; 20. upper spring; 21. drive motor; 22. thread rod; 23, limit rod; 24, lower spring; 25, hanging slot; 26, back plate; 27, upper electric telescopic cylinder; 28, tension detector; 29, pull rod; 30, guide rod; 31, electromagnet; 32, first touch sensor; 33, second touch sensor; 34, third touch sensor; 35, collection box; 36, baffle; 37, material chute; 38, slide plate; 39, lower electric telescopic cylinder; 40, top plate. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] like Figure 1-Figure 10The zipper performance test device for school uniforms shown in the figure comprises a test platform 1, and a display 2 arranged on the test platform 1 for displaying data, a storage frame 3 is arranged beside the test platform 1, a pair of fixed plates 4 are slidably connected to the inner side of the storage frame 3, a plurality of partitions 5 for placing zippers are fixedly connected equidistantly between the fixed plates 4, a blanking trough 6 is opened at the top of the test platform 1, a plurality of partitions 5 are provided with a limiting mechanism for fixing the zipper, a side plate 7 is fixedly connected to the inner side of the blanking trough 6, a fixed frame 8 is fixedly connected to the top of the test platform 1, and a space between the inner side of the fixed frame 8 and the side wall of the side plate 7 is provided. A sliding block 9 is provided, and the top of the side wall of the partition 5 is fixedly connected with a U-shaped plate 10. It should be noted that the side wall of the uppermost partition 5 does not need to be installed with a U-shaped plate 10. Due to the lack of a limit on the zipper at the top, the material cannot be taken normally, so it cannot be used. The side wall of the sliding block 9 is fixedly connected with a lower plate 11 relative to the inner position of the U-shaped plate 10. The top of the sliding block 9 is provided with a top groove, and the inner side of the top groove is slidably connected with an upper plate 12. A driving mechanism for driving the sliding block 9 to move is provided on the inner side of the fixed frame 8, and a detection mechanism for pulling out the zipper and releasing the clamping is provided on the side plate 7; The detection mechanism includes a round rod 13, a reset spring 14 is fixedly connected between the bottom end of the top groove and the bottom of the upper plate 12, a round hole is opened on the side wall of the upper plate 12, the round rod 13 is slidably connected to the inner side of the round hole, a vertical groove for the round rod 13 to slide up and down is opened on the side of the sliding block 9 close to the side plate 7, an L-shaped groove 15 is opened on the side wall of the side plate 7, the side wall of the round rod 13 is plugged into the inner side of the L-shaped groove 15, a lower inclined groove 16 is opened on the side wall at the bottom end of the L-shaped groove 15, an upper inclined groove 17 is opened at the bottom of the top end of the L-shaped groove 15, and a vertical groove 16 is opened between the lower inclined groove 16 and the upper inclined groove 17. There is a straight groove 18, and an inward groove 19 is opened at the top of the L-shaped groove 15, and the connection between the groove 19 and the inner side of the L-shaped groove 15 is inclined, so that the round rod 13 can slide from the inclined surface of the groove 19 into the lateral end of the L-shaped groove 15. An upper spring 20 is fixedly connected between the inner side of the circular hole and the side wall of the round rod 13, and the upper spring 20 is used to push the end of the round rod 13 into the groove 19 and run according to the specified route. The end of the round rod 13 close to the side plate 7 is set as a smooth arc surface, which is convenient for the round rod 13 to slide out from the inclined surface of the groove 19 more smoothly; The driving mechanism includes a driving motor 21, which is fixedly connected to the side wall of the fixed frame 8. A threaded rod 22 is rotatably connected to the inner side of the fixed frame 8. A threaded hole is provided on the side wall of the sliding block 9. The threaded rod 22 is threadedly connected to the threaded hole. The output end of the driving motor 21 passes through the inner side of the fixed frame 8 and is fixedly connected to the side wall of the threaded rod 22. In the process of testing the smooth performance of the school uniform zipper, the school uniform zipper to be tested is first placed on the partition 5 in sequence, and the zipper is in the open state at this time, and then the driving motor 21 can be controlled to start and drive the threaded rod 22 to rotate, thereby driving the threaded sliding block 9 to move, and then driving the upper plate 12 and the lower plate 11 to move toward the side of the storage frame 3, and at the same time driving the round rod 13 to move at the lateral end of the L-shaped groove 15 (it should be noted here that the round rod 13 in the initial position needs to be inserted into the lateral end of the L-shaped groove 15). Then, the lower plate 11 is inserted into the inner side of the U-shaped plate 10 and is located below the zipper, and the upper plate 12 is moved to the upper side of the U-shaped plate 10 and has a certain distance, and at the same time, the round rod 13 moves to the corner of the L-shaped groove 15, thereby releasing the restriction on the round rod 13 sliding downward, and then the upper plate 12 is pulled downward under the elastic force of the return spring 14, thereby clamping the zipper between the upper plate 12 and the lower plate 11, and at the same time, the round rod 13 slides at the longitudinal end of the L-shaped groove 15, and when the zipper is completely clamped, the round rod 13 slides into the lower inclined groove 16; Then the driving motor 21 can be controlled to reverse, driving the sliding block 9, the upper plate 12 and the lower plate 11 to move in the opposite direction, and at the same time driving the clamped zipper to move (it should be noted here that since the zipper is not under force at this time, the zipper can be easily pulled out through the pulling force of the return spring 14), and then the round rod 13 slides downward in the lower inclined groove 16, and since the round rod 13 can only slide up and down in the vertical groove, the lower inclined groove 16 will gradually compress the round rod 13 to move downward, and drive the upper plate 12 to move downward, further clamp the zipper, and at the same time compress the return spring 14, and then the round rod 13 slides into the straight groove 18, and finally the zipper is completely pulled out of the partition 5, and the test can be carried out.

[0022] In order to quickly pull the zipper for testing, the limiting mechanism includes a limiting rod 23, a rectangular hole is opened on the side of the partition 5 close to the test platform 1, a plurality of limiting rods 23 are provided, and the plurality of limiting rods 23 are slidably connected to the inner side of the rectangular hole, and the inner side of the rectangular hole and the side wall of the limiting rod 23 are fixedly connected with a lower spring 24, and a hanging groove 25 for hanging the zipper is opened at the top of the limiting rod 23, and the hanging groove 25 is inclined near the side of the test platform 1, so as to facilitate squeezing the zipper out of the hanging groove 25; The top of the side wall of the sliding block 9 is fixedly connected with a rear plate 26, the top of the rear plate 26 is fixedly connected with an upper electric telescopic cylinder 27, the output end of the upper electric telescopic cylinder 27 is fixedly connected with a tension detector 28, and the detection end of the tension detector 28 is fixedly connected with a pull rod 29, the side wall of the pull rod 29 is fixedly connected with a guide rod 30, and the side wall of the pull rod 29 is fixedly connected with an electromagnet 31 at a position below the guide rod 30. It should be noted that the zippers on the test zipper are all made of materials that can be adsorbed by the electromagnet 31, and the side wall of the guide rod 30 is set to a smooth arc surface, so that when the electromagnet 31 releases the adsorption of the zipper, the zipper quickly falls off the guide rod 30, avoiding the phenomenon that the zipper falls on the guide rod 30 and affects the normal unloading of the device, and the tension detector 28 is electrically connected to the display 2 through the controller; First, in the process of placing the zipper, the hole on the zipper needs to pass through the limit rod 23 and hang in the hanging groove 25. Then, when the driving motor 21 drives the sliding block 9 to move to one side of the storage frame 3, it will first drive the guide rod 30 on the side wall of the pull rod 29 to move to the side of the limit rod 23, and then the guide rod 30 will push the limit rod 23 to gradually slide into the rectangular groove and gradually compress the lower spring 24. At the same time, the zipper is restricted by the side wall of the partition 5 and will not move with the limit rod 23. Then, under the continued squeezing of the guide rod 30, the limit rod 23 is completely squeezed into the rectangular groove, and the zipper will be squeezed out along the inclined surface of the hanging groove 25 and hung on the guide rod 30. At the same time, the electromagnet 31 is in an open state, so the zipper will be tightly adsorbed on the side wall of the electromagnet 31. Then, when the driving motor 21 reverses and drives the sliding block 9 to move in the opposite direction, the zipper will be driven to move under the suction force of the electromagnet 31. After the zipper is completely pulled out from the partition 5, the upper electric telescopic cylinder 27 can be controlled to start driving the pull rod 29 and the guide rod 30 to move, and at the same time, the zipper is driven to move by the electromagnet 31, so as to close the zipper. At this time, the tension detector 28 will detect the tension in the process of pulling the zipper to close the zipper, and display it on the display 2 in real time through the controller, so that the inspection personnel can realize the smooth performance test of the zipper by observing whether the data is within the normal range; After the final detection is completed, the driving motor 21 can be controlled to continue to reverse, driving the sliding block 9 to continue to move, thereby driving the round rod 13 to move into the upper inclined groove 17, and then under the extrusion of the inclined surface of the upper inclined groove 17, the round rod 13 will gradually be pushed upward, while driving the upper plate 12 to move upward in the top groove, and gradually stretching the reset spring 14, thereby releasing the clamping and fixation of the zipper, and then the round rod 13 slides into the L-shaped groove 15 and is located next to the groove 19, so that under the elastic force of the upper spring 20, the end of the round rod 13 is pushed into the groove 19, because there is a step between the groove 19 and the upper inclined groove 17, so that the round rod 13 cannot slide into the upper inclined groove 17, and then the driving motor 21 can be controlled to rotate forward, driving the sliding block 9 to move and reset to one side of the storage frame 3, and this can be repeated to achieve automatic detection of the zipper.

[0023] In order to improve the convenience of the device, a collection box 35 is provided on the inner side of the feeding chute 6. Through the setting of the collection box 35, the zippers that fall into the feeding chute 6 can be collected, which is convenient for subsequent unified processing, thereby improving the convenience of the device. In addition, a baffle 36 is fixedly connected to the side wall of the collection box 35. The baffle 36 can limit the position of the collection box 35 in the feeding chute 6, so that the collection box 35 can be quickly pushed into the accurate position. A feeding chute 37 is provided at the top of the testing table 1 relative to the lower position of the U-shaped plate 10. The setting of the feeding chute 37 can avoid hindering the normal downward movement of the U-shaped plate 10. A top plate 40 is fixedly connected to the inner side of the feeding chute 6 relative to the position beside the feeding chute 37. It is arranged that the other end of the pulled-out zipper will fall onto the top plate 40 (it should be noted here that as long as the area of ​​the top plate 40 where the zipper is placed is large enough, the zipper will not sag from the middle), which can prevent the zipper from falling directly into the drop groove 6 after being pulled out from the U-shaped plate 10, causing the other end of the zipper to be in a drooping state, and the contact area and pressure between the zipper teeth may change, resulting in increased friction, and then when the zipper is pulled to close the zipper, a greater friction needs to be overcome, which makes the operation relatively difficult and affects the test results of the smooth performance of the zipper, and after the test is completed, when the sliding block 9 continues to move to drive the round rod 13 to slide in the upper inclined groove 17, it will drive the zipper to move out of the top plate 40.

[0024] In order to ensure automatic loading of the device, a slide groove is provided at the rear side of the storage frame 3, a slide plate 38 is slidably connected to the rear side of the storage frame 3, the front side of the slide plate 38 passes through the slide groove and is fixedly connected to the rear side of one of the fixed plates 4, a pair of lower electric telescopic cylinders 39 are fixedly connected to the rear side of the storage frame 3, and the output end of the lower electric telescopic cylinder 39 is fixedly connected to the top of the slide plate 38; When the inspection of the previous zipper is completed, the lower electric telescopic cylinder 39 can be controlled to start driving the slide plate 38 to move downward, and drive the fixed plate 4 and the partition plate 5 to move downward, thereby removing the position where the previous zipper has been taken away, and moving the zipper to be inspected to the loading position, ensuring the normal operation of subsequent loading work.

[0025] In order to improve the automation efficiency of the device, a first touch sensor 32 is fixedly connected through one side of the straight slot 18 close to the upper inclined slot 17. The first touch sensor 32 is electrically connected to the drive motor 21 and the upper electric telescopic cylinder 27 through the controller. When the round rod 13 moves to the other end of the straight slot 18 and touches the first touch sensor 32, a signal is transmitted to the controller. The controller controls the drive motor 21 to stop running, and controls the upper electric telescopic cylinder 27 to start and drive the zipper to move, thereby realizing automatic testing of the zipper without manual control, thereby improving the automation efficiency of the device. A second touch sensor 33 is fixedly connected through the bottom end of the upper inclined slot 17; The second touch sensor 33 is electrically connected to the electromagnet 31 through the controller. When the round rod 13 moves to the bottom of the upper inclined groove 17, the upper plate 12 will be driven to move upward to release the clamping of the zipper. The round rod 13 will touch the second touch sensor 33, and then transmit the signal to the controller. The controller controls the electromagnet 31 to close, thereby releasing the adsorption of the zipper, so that when the clamping of the zipper is released, the zipper falls by its own gravity. The inner side of the groove 19 is fixedly connected with a third touch sensor 34. The third touch sensor 34 is electrically connected to the drive motor 21, the electromagnet 31, the upper electric telescopic cylinder 27 and the lower electric telescopic cylinder 39 through the controller. When the round rod 13 slides into the groove 19, it will touch the third touch sensor 34, and then transmit the signal to the controller. The controller controls the drive motor 21 to rotate forward, and controls the upper electric telescopic cylinder 27 to reset, and at the same time opens the electromagnet 31, and then controls the lower electric telescopic cylinder 39 to start and drive the fixed plate 4 to move downward, automatically changing the zipper position, thereby improving the automation efficiency of the device.

[0026] The basic principles, main features and advantages of the present invention are shown and described above.

[0027] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and the specification only describe the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. These changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A school uniform zipper performance testing device, comprising a testing platform (1), and a display (2) arranged on the testing platform (1) for displaying data, characterized in that: A storage frame (3) is provided beside the testing platform (1), a pair of fixed plates (4) are slidably connected to the inner side of the storage frame (3), a plurality of partitions (5) for placing zippers are fixedly connected at equal intervals between the fixed plates (4), a blanking trough (6) is provided at the top of the testing platform (1), a plurality of the partitions (5) are provided with limiting mechanisms for fixing zippers, a side plate (7) is fixedly connected to the inner side of the blanking trough (6), a fixed frame (8) is fixedly connected to the top of the testing platform (1), and a plurality of the partitions (5) are provided with limiting mechanisms for fixing zippers, a side plate (7) is fixedly connected to the inner side of the blanking trough (6), a fixed frame (8) is fixedly connected to the inner side of the fixed frame (8), and a plurality of the partitions (5) are fixedly connected to the inner side of the fixed frame (8). A sliding block (9) is provided between the side and side walls of the side plate (7); the top ends of the side walls of the partition plate (5) are fixedly connected to a U-shaped plate (10); the side walls of the sliding block (9) are fixedly connected to a lower plate (11) at an inner position relative to the U-shaped plate (10); a top groove is provided at the top end of the sliding block (9); an upper plate (12) is slidably connected to the inner side of the top groove; a driving mechanism for driving the sliding block (9) to move is provided on the inner side of the fixed frame (8); and a detection mechanism for pulling out a zipper and releasing the clamp is provided on the side plate (7).

2. A school uniform zipper performance testing device according to claim 1, characterized in that: The detection mechanism comprises a round rod (13), a return spring (14) is fixedly connected between the bottom end of the top groove and the bottom of the upper plate (12), a round hole is provided on the side wall of the upper plate (12), the round rod (13) is slidably connected to the inner side of the round hole, a vertical groove for the round rod (13) to slide up and down is provided on the side of the sliding block (9) close to the side plate (7), an L-shaped groove (15) is provided on the side wall of the side plate (7), the side wall of the round rod (13) is plugged into the inner side of the L-shaped groove (15), and the side wall of the bottom end of the L-shaped groove (15) is provided. A lower inclined groove (16) is provided, an upper inclined groove (17) is provided at the bottom of the top end of the L-shaped groove (15), a straight groove (18) is provided between the lower inclined groove (16) and the upper inclined groove (17), an inwardly sunken groove (19) is provided at the top end of the L-shaped groove (15), and the connection between the groove (19) and the inner side of the L-shaped groove (15) is inclined, an upper spring (20) is fixedly connected between the inner side of the circular hole and the side wall of the round rod (13), and the end of the round rod (13) close to the side plate (7) is set to a smooth arc surface.

3. A school uniform zipper performance testing device according to claim 1, characterized in that: The driving mechanism comprises a driving motor (21), the driving motor (21) being fixedly connected to a side wall of a fixing frame (8), a threaded rod (22) being rotatably connected to the inner side of the fixing frame (8), a threaded hole being provided on the side wall of the sliding block (9), the threaded rod (22) being threadedly connected to the threaded hole, and an output end of the driving motor (21) passing through the inner side of the fixing frame (8) and being fixedly connected to the side wall of the threaded rod (22).

4. A school uniform zipper performance testing device according to claim 1, characterized in that: The limiting mechanism comprises a limiting rod (23), a rectangular hole is provided on the side of the partition (5) close to the detection platform (1), a plurality of limiting rods (23) are provided, and the plurality of limiting rods (23) are slidably connected to the inner side of the rectangular hole, a lower spring (24) is fixedly connected to the inner side of the rectangular hole and the side wall of the limiting rod (23), and a hanging groove (25) for hanging a zipper is provided on the top of the limiting rod (23), and the hanging groove (25) is inclinedly arranged close to the side of the detection platform (1).

5. A school uniform zipper performance testing device according to claim 1, characterized in that: The top end of the side wall of the sliding block (9) is fixedly connected to a rear plate (26), the top end of the rear plate (26) is fixedly connected to an upper electric telescopic cylinder (27), the output end of the upper electric telescopic cylinder (27) is fixedly connected to a tension detector (28), and the detection end of the tension detector (28) is fixedly connected to a pull rod (29), the side wall of the pull rod (29) is fixedly connected to a guide rod (30), an electromagnet (31) is fixedly connected to the side wall of the pull rod (29) at a position below the guide rod (30), the side wall of the guide rod (30) is arranged to be a smooth arc surface, and the tension detector (28) is electrically connected to the display (2) through a controller.

6. A school uniform zipper performance testing device according to claim 2, characterized in that: A first touch sensor (32) is fixedly connected to a side of the straight groove (18) close to the upper inclined groove (17), a second touch sensor (33) is fixedly connected to a bottom end of the upper inclined groove (17), and a third touch sensor (34) is fixedly connected to an inner side of the groove (19).

7. A school uniform zipper performance testing device according to claim 1, characterized in that: A collecting box (35) is provided inside the material dropping chute (6), and a baffle (36) is fixedly connected to the side wall of the collecting box (35). A material dropping chute (37) is provided at the top of the inspection platform (1) at a position below the U-shaped plate (10), and a top plate (40) is fixedly connected to the inside of the material dropping chute (6) at a position beside the material dropping chute (37).

8. A school uniform zipper performance testing device according to claim 1, characterized in that: A slide groove is provided on the rear side of the storage frame (3); a slide plate (38) is slidably connected to the rear side of the storage frame (3); the front side of the slide plate (38) passes through the slide groove and is fixedly connected to the rear side of one of the fixed plates (4); a pair of lower electric telescopic cylinders (39) are fixedly connected to the rear side of the storage frame (3); and the output ends of the lower electric telescopic cylinders (39) are fixedly connected to the top of the slide plate (38).

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