A multi-station hairpin automatic detection and assembly device

Abstract

The application discloses a kind of multi-station hairpin automatic detection and assembly equipment, including support seat, the support seat top is equipped with annular track piece, and annular track piece is fixed with sliding block mechanism by connecting plate, and sliding block mechanism one side outer wall is welded with side plate, and two side plates are all installed with elastic element, and elastic element one end is fixed with discharging seat, and discharging seat both sides are all fixed with side limiting plate, and discharging seat inner surface is bonded with flexible pad, two side limiting plate inside are placed with hairpin assembly, and hairpin assembly includes left clip mechanism and right clip mechanism, left clip mechanism and right clip mechanism are connected by torsional spring and insert rod between it.The design of elastic element and discharging seat realizes that hairpin assembly is as mould feeding in the assembly process, and it can be used as detection fixture to detect strength after assembly, greatly improves the assembly and detection efficiency of hairpin assembly, reduces the conversion time and cost in production process.

Description

Technical Field

[0001] This invention relates to the field of hair clip inspection and assembly technology, and in particular to a multi-station automatic hair clip inspection and assembly device. Background Technology

[0002] In the hair clip manufacturing industry, hair clips are a common hair accessory with huge market demand. As consumers' requirements for the quality and appearance of hair clips continue to increase, and market competition intensifies, hair clip manufacturers face the challenge of improving production efficiency and ensuring product quality. Traditional hair clip production and testing methods mainly rely on manual operation, which is difficult to meet the needs of large-scale production. In the testing process, the strength test of hair clips is usually carried out manually. Workers need to apply a certain external force to the hair clip and observe whether cracks or breaks appear, in order to determine whether the strength of the hair clip meets the standard. However, manual testing has the problems of strong subjectivity and difficulty in unifying testing standards, which can easily lead to missed detections and false detections, and cannot effectively guarantee the quality stability of the product. Therefore, developing a multi-station automatic hair clip inspection and assembly equipment that can integrate automatic hair clip assembly and strength testing, improve production efficiency and quality, and reduce production costs is of great practical significance, providing an efficient and reliable production solution for the hair clip manufacturing industry. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-station automatic detection and assembly device for hair clips.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A multi-station automatic hair clip detection and assembly device includes a support base. A ring track component is installed on the top of the support base, and a slider mechanism is fixed on the ring track component through a connecting plate. A side plate is welded to the outer wall of one side of the slider mechanism, and elastic elements are installed on both side plates. A feeding seat is fixed to one end of the elastic element, and side limiting plates are fixed on both sides of the feeding seat. A flexible pad is adhered to the inner surface of the feeding seat. A hair clip assembly is placed inside the two side limiting plates. The hair clip assembly includes a left clamping mechanism and a right clamping mechanism, which are connected by a torsion spring and a plug rod.

[0005] As a further embodiment of the present invention: the annular track component includes a transmission wheel and a timing belt. Both transmission wheels are movably connected to the top outer wall of the support base, and the timing belt drives between the two transmission wheels. A bracket is fixed to the top outer wall of the support base, and a drive motor is fixed to the top outer wall of the bracket. The output end of the drive motor is connected to the top of one of the transmission wheels through a coupling, and the connecting plate and the side wall of the timing belt are fixedly connected.

[0006] As a further embodiment of the present invention: the annular track component further includes an annular slide, and the annular slide and the slider mechanism are properly matched. The slider mechanism includes a slide base and a roller. The slide base and the connecting plate are fixedly connected. The roller is movably connected to the bottom of the slide base and is movably connected to the annular slide.

[0007] As a further embodiment of the present invention: the left clamping mechanism includes a hair clip body 1 and a connecting block 2, the connecting block 2 and the hair clip body 1 are integrally formed; the right clamping mechanism includes a connecting block 1 and a hair clip body 2, the connecting block 1 and the hair clip body 2 are integrally formed; the insert rod is connected to the connecting block 1 and the connecting block 2 by insertion.

[0008] As a further embodiment of the present invention: both the first surface and the second surface of the hair clip body are provided with slots, and the slots and the torsion springs are used in conjunction.

[0009] As a further embodiment of the present invention: an L-shaped plate is fixed to the top outer wall of the support base, and a hydraulic cylinder is fixed to the top outer wall of the L-shaped plate. A lifting plate is fixed to the output end of the hydraulic cylinder by a pin, and a bending plate is fixed to the bottom of the lifting plate.

[0010] As a further embodiment of the present invention: a fork is fixed on the top of the feeding seat, and a positioning groove adapted to the outer diameter of the insert rod is opened on the surface of the fork.

[0011] As a further embodiment of the present invention: a vertical plate is fixed to the top outer wall of the support base, and a guide rod is movably connected to the through hole on the surface of the vertical plate. A clamping plate is welded to one end of each of the two guide rods, and a roller is movably connected to the inner wall of the clamping plate. A bracket one is welded to the top of the clamping plate, and a bracket two is welded to the bottom of the lifting plate. A swing arm is movably connected between the inner wall of bracket two and the inner wall of bracket one.

[0012] As a further embodiment of the present invention: the elastic element includes a mounting cylinder and a sliding rod. The mounting cylinder is fixed to the outer wall of one side of the side plate, and the sliding rod is movably connected to the inner wall of a through hole opened at one end of the mounting cylinder. The sliding rod and the feeding seat are fixed by screws. A permanent magnet is fixed to the end of the sliding rod away from the feeding seat, and an electromagnet that works with the permanent magnet is fixed to the inner wall of one side of the mounting cylinder. A spring is fitted into the outer wall of the sliding rod, and the two ends of the spring are respectively fixed to the inner wall of one side of the mounting cylinder and the outer wall of one side of the permanent magnet.

[0013] As a further embodiment of the present invention: a controller is installed on one side of the outer wall of the support base.

[0014] Compared with the prior art, the present invention provides a multi-station automatic detection and assembly equipment for hair clips, which has the following beneficial effects: 1. Through the design of the elastic component and the feeding seat, the hair clip assembly can be used as a mold for feeding during the assembly process, and as a testing fixture for strength testing after assembly. This greatly improves the assembly and testing efficiency of the hair clip assembly and reduces the changeover time and cost in the production process.

[0015] 2. The ring track component consists of a transmission wheel, a synchronous belt, and a ring slide. Together with the slider mechanism and rollers, it realizes the ring motion of multiple slider mechanisms, which not only improves the assembly efficiency of the hairpin assembly, but also makes it easy to adapt to different production scales by adjusting the number of slides.

[0016] 3. By combining the interaction between the electromagnet and the permanent magnet with the elastic force of the spring, dynamic detection of the hair clip assembly strength is achieved. By adjusting the magnetic poles and current of the electromagnet, the pressure on the hair clip assembly can be dynamically adjusted, enabling multi-level strength testing and improving the accuracy and flexibility of the detection.

[0017] 4. The hydraulic cylinder drives the bending plate to bend the insert rod, while the shift fork supports the insert rod during the bending process, preventing the left and right clamping mechanisms from breaking due to direct pressure. This automated design not only improves assembly efficiency but also ensures assembly quality.

[0018] 5. While assembling one set of hairpin components, the equipment can perform strength testing on another set of already assembled hairpin components. This synchronization mechanism converts the vertical movement of the lifting plate into the lateral movement of the clamping plate through the swing arm, realizing the parallel execution of assembly and testing, and further improving production efficiency.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This invention has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a multi-station automatic detection and assembly equipment for hair clips proposed in this invention; Figure 2 This is a schematic diagram of the bottom structure of the feeding component of a multi-station automatic detection and assembly equipment for hair clips proposed in this invention; Figure 3 This is an exploded view of the unloading component of a multi-station automatic detection and assembly equipment for hair clips proposed in this invention. Figure 4 This is a schematic diagram of the material feeding structure of a hair clip assembly in a multi-station automatic hair clip detection and assembly equipment proposed in this invention; Figure 5 This is an exploded view of the hair clip assembly of a multi-station automatic hair clip detection and assembly equipment proposed in this invention. Figure 6This is a schematic diagram of the installation structure of the detection component of a multi-station automatic detection and assembly equipment for hair clips proposed in this invention; Figure 7 This is a schematic diagram of the overall structure of the detection component of a multi-station automatic detection and assembly equipment for hair clips proposed in this invention.

[0021] In the diagram: 1. Support base; 2. Slide base; 3. Controller; 4. Circular slide rail; 5. Bracket; 6. Drive motor; 7. Transmission wheel; 8. Synchronous belt; 9. Vertical plate; 10. Side plate; 11. Roller; 12. Connecting plate; 13. Feeding seat; 14. Mounting cylinder; 15. Shift fork; 16. Electromagnet; 17. Permanent magnet; 18. Slide rod; 19. Spring; 20. Flexible pad; 21. Side limiting plate; 22. Hairpin body 1; 23. Slot; 24. Torsion spring; 25. Insert rod; 26. Connecting block 1; 27. Hairpin body 2; 28. Connecting block 2; 29. ​​Bracket 1; 30. Bracket 2; 31. Swing arm; 32. Clamping plate; 33. Roller shaft; 34. Bending plate; 35. Lifting plate; 37. L-shaped plate; 38. Guide rod. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] A multi-station automatic inspection and assembly equipment for hair clips, such as Figures 1 to 7 As shown, the device includes a support base 1, on the top of which is a ring track component. A slider mechanism is fixed to the ring track component via a connecting plate 12. A side plate 10 is welded to the outer wall of one side of the slider mechanism. An elastic component is installed on each of the two side plates 10. A feeding seat 13 is fixed to one end of the elastic component. Side limiting plates 21 are fixed to both sides of the feeding seat 13. A flexible pad 20 is adhered to the inner surface of the feeding seat 13. A hair clip assembly is placed inside the two side limiting plates 21. The hair clip assembly includes a left clamping mechanism and a right clamping mechanism. The left clamping mechanism and the right clamping mechanism are connected by a torsion spring 24 and a plug rod 25. The ring track can drive multiple sets of slider mechanisms to make ring motion. In the initial state, the elastic force of the elastic element makes the two feeding seats 13 fit together. The groove formed between the two feeding seats 13 and the hair clip assembly are compatible with each other. When the hair clip assembly needs to be assembled, the left clip mechanism and the right clip mechanism can be placed in the groove manually or by a robot. The insertion rod 25 can connect the left clip mechanism and the right clip mechanism into a whole. When the torsion spring 24 and the insertion rod 25 are sleeved together, the torsion spring 24 makes the left clip mechanism and the right clip mechanism have sufficient rebound force so that the hair clip assembly can be stably clamped on the hair surface. After the left clamping mechanism and the right clamping mechanism are assembled together by the torsion spring 24 and the insert rod 25, their strength needs to be tested. The purpose of the strength test is to prevent the hair clip assembly from breaking if it falls from a height during actual use. When strength testing is required, the left and right clamping mechanisms are rotated relative to each other, and the left and right clamping mechanisms expand to both sides simultaneously. During the expansion process, the left and right clamping mechanisms apply an expansion force to the left and right feeding seats 13 respectively. The elastic element undergoes elastic deformation after being subjected to force. During the expansion process, the left and right clamping mechanisms need to overcome the rebound force of the elastic element. The strength is tested by observing whether cracks or breaks occur in the left and right clamping mechanisms during the expansion process. If no breaks or cracks occur in the left and right clamping mechanisms, it proves that their strength meets the standard; otherwise, it does not meet the standard. The flexible pad 20 can reduce friction during the movement of the left and right clamping mechanisms relative to the feeding seat 13 and avoid scratches on the left and right clamping mechanisms. By incorporating an elastic element and a feeding seat 13, the assembly and testing efficiency of the hair clip assembly can be improved. This can be achieved by using the elastic element and feeding seat 13 as a mold for feeding and positioning the hair clip assembly during assembly, and by using it as a testing fixture for strength testing after assembly.

[0024] The annular track component includes a transmission wheel 7 and a synchronous belt 8. Both transmission wheels 7 are rotatably connected to the top outer wall of the support base 1, and the synchronous belt 8 drives between the two transmission wheels 7. A bracket 5 is fixed to the top outer wall of the support base 1 by bolts, and a drive motor 6 is fixed to the top outer wall of the bracket 5 by bolts. The output end of the drive motor 6 is connected to the top of one of the transmission wheels 7 through a coupling. The connecting plate 12 and the side wall of the synchronous belt 8 are fixedly connected. The annular track component also includes an annular slide 4, and the annular slide 4 and the slider mechanism are practically matched. The slider mechanism includes a slide seat 2 and a roller 11. The slide seat 2 and the connecting plate 12 are fixedly connected by bolts. The roller 11 is rotatably connected to the bottom of the slide seat 2 and is rotatably connected to the annular slide 4. The annular slide 4 has an "I" shaped longitudinal section, which can limit the movement of the roller 11. The annular slide 4 and the roller 11 guide the movement path of the slide 2, so that the slide 2 can make a circular motion along the annular slide 4 through the roller 11. By adjusting the number of slides 2 installed, it is convenient to assemble multiple hairpin components and improve assembly efficiency. The transmission wheel 7 is provided so that the drive motor 6 can indirectly drive the synchronous belt 8 for transmission. During the transmission process, the synchronous belt 8 acts as a power output to drive the connecting plate 12, the slide 2 and the roller 11 to make a circular motion along the annular slide 4.

[0025] The left clamping mechanism includes a hair clip body 22 and a connecting block 28, which are integrally formed with the hair clip body 22. The right clamping mechanism includes a connecting block 26 and a hair clip body 27, which are integrally formed with each other. Both the surface of the hair clip body 22 and the surface of the hair clip body 27 are provided with slots 23, which cooperate with the torsion spring 24. The insertion rod 25 is connected to the connecting block 26 and the connecting block 28 by insertion. Both connecting block 1 26 and connecting block 28 have insertion holes that match the outer diameter of the insertion rod 25. After the insertion holes on connecting block 1 26 and connecting block 28 are aligned, the two sets of spring rods of the torsion spring 24 are placed in the two slots 23. The slots 23 are used to limit the spring rods and prevent them from moving left and right. Then, the insertion rod 25 is inserted into the torsion spring 24, connecting block 1 26 and connecting block 28. The insertion rod 25 is used to connect the left clamping mechanism, the right clamping mechanism and the torsion spring 24 to complete the initial assembly of the hair clip assembly.

[0026] The top outer wall of the support base 1 is fixed with an L-shaped plate 37 by bolts, and the top outer wall of the L-shaped plate 37 is fixed with a hydraulic cylinder 36 by bolts. The output end of the hydraulic cylinder 36 is fixed with a lifting plate 35 by pins, and the bottom of the lifting plate 35 is fixed with a bending plate 34. The top of the feeding base 13 is fixed with a fork 15 by screws, and the surface of the fork 15 is provided with a positioning groove that matches the outer diameter of the insertion rod 25. After the insertion rod 25 is inserted into the torsion spring 24, connecting block 1 26 and connecting block 28, the two ends of the insertion rod 25 need to be limited to prevent it from slipping off the torsion spring 24, connecting block 1 26 and connecting block 28. After the insertion rod 25 is inserted into the torsion spring 24, connecting block 1 26 and connecting block 28, the fork 15 is used to support the insertion rod 25. When the ring track indirectly drives the insertion rod 25 to move below the bending plate 34, when the hydraulic cylinder 36 drives the bending plate 34 to move down, the bending plate 34 is used to bend the two ends of the insertion rod 25 to ensure that the insertion rod 25 will not detach from the torsion spring 24, connecting block 1 26 and connecting block 28 to complete the assembly of the entire hair clip assembly. When the fork 15 bends at both ends of the insert rod 25, it supports the insert rod 25, thereby preventing the left and right clamping mechanisms from being directly subjected to the pressure of the bending plate 34 through the insert rod 25, which would cause the left and right clamping mechanisms to break under pressure.

[0027] The top outer wall of the support base 1 is fixed with a vertical plate 9 by bolts, and a guide rod 38 is slidably connected to the through hole on the surface of the vertical plate 9. A clamping plate 32 is welded to one end of each of the two guide rods 38, and a roller shaft 33 is rotatably connected to the inner wall of the clamping plate 32. A bracket 29 is welded to the top of the clamping plate 32, and a bracket 30 is welded to the bottom of the lifting plate 35. A swing arm 31 is rotatably connected between the inner wall of the bracket 30 and the inner wall of the bracket 29. To improve the efficiency of hairpin assembly inspection and assembly, when one set of hairpin assemblies to be assembled needs to bend the insertion rod 25 using the bending plate 34, another set of hairpin assemblies that have completed the bending of the insertion rod 25 moves to the position between the two rollers 33 via the slider mechanism. When the hydraulic cylinder 36 drives the lifting plate 35 to move down, the bending plate 34 bends the insertion rod 25 of the hairpin assembly to be assembled. At the same time, the swing arm 31 converts the vertical movement of the bracket 2 30 and the lifting plate 35 into the lateral movement of the clamping plate 32 and the rollers 33. The vertical plate 9 and the guide rod 38 guide the movement path of the clamping plate 32. During the relative movement of the two rollers 33, the outer inclined surfaces of the hairpin body 1 22 and the hairpin body 2 27 are squeezed, thereby causing the jaws at the bottom of the hairpin body 1 22 and the hairpin body 2 27 to expand to both sides and apply pressure to the corresponding feeding seat 13 in order to inspect the strength of the hairpin assembly.

[0028] The elastic element includes a mounting cylinder 14 and a sliding rod 18. The mounting cylinder 14 is fixed to the outer wall of one side of the side plate 10 by screws, and the sliding rod 18 is slidably connected to the inner wall of the through hole opened at one end of the mounting cylinder 14. The sliding rod 18 and the feeding seat 13 are fixed by screws. A permanent magnet 17 is fixed to the end of the sliding rod 18 away from the feeding seat 13, and an electromagnet 16 that works with the permanent magnet 17 is fixed to the inner wall of one side of the mounting cylinder 14. A spring 19 is sleeved on the outer wall of the sliding rod 18, and the two ends of the spring 19 are respectively fixed to the inner wall of one side of the mounting cylinder 14 and the outer wall of one side of the permanent magnet 17. When the strength of the hair clip assembly needs to be tested, when the electromagnet 16 is energized and the magnetic poles of the opposite sides of the electromagnet 16 and the permanent magnet 17 are the same, a repulsive force is generated between the electromagnet 16 and the permanent magnet 17. Therefore, during the strength test, by adjusting the magnitude of the repulsive force between the electromagnet 16 and the permanent magnet 17, the pressure on the hair clip body 1 22 and the hair clip body 2 27 can be adjusted, thereby realizing the dynamic adjustment of the force on the hair clip body 1 22 and the hair clip body 2 27, and realizing multi-level adjustment of the strength test. When the hair clip assembly completes the strength test and needs to be unloaded, the magnetic poles of the electromagnet 16 relative to the permanent magnet 17 are changed, so that the electromagnet 16 generates an attractive force on the permanent magnet 17. The attractive force overcomes the elastic force of the spring 19, causing the slide rod 18 to drive the feeding seat 13 to make a return motion. The gap between the two feeding seats 13 gradually increases, so that the assembled and tested hair clip assembly is unloaded under its own gravity.

[0029] A controller 3 is installed on one outer wall of the support base 1; The controller 3 controls the start, stop and speed of the drive motor 6 through a preset program to adjust the movement speed of the ring track component, controls the extension and retraction of the hydraulic cylinder 36 to realize the lifting and lowering of the bending plate 34 and the lateral movement of the clamping plate 32, and adjusts the magnetic poles and current of the electromagnet 16 to change the interaction force between it and the permanent magnet 17, thereby controlling the assembly, inspection and unloading process of the hair clip assembly.

[0030] Working principle: In the initial state, the elastic force of the elastic element causes the two feeding seats 13 to fit together, forming a groove that matches the hair clip assembly. The left and right clamping mechanisms are placed in the groove manually or by a robot. The two sets of spring rods of the torsion spring 24 are placed in the slots 23 on the surfaces of the first and second hair clip bodies 22 and 27, respectively, to limit the spring rods and prevent them from moving left or right. Then, the insertion rod 25 is inserted into the torsion spring 24, connecting block 26, and connecting block 28. The insertion rod 25 connects the left and right clamping mechanisms and the torsion spring 24, completing the initial assembly of the hair clip assembly. The fork 15 supports the insertion rod 25. When the annular track component is indirectly... When the drive rod 25 moves below the bending plate 34, the hydraulic cylinder 36 drives the lifting plate 35 to move downwards. The bending plate 34 bends both ends of the drive rod 25 to prevent it from detaching from the torsion spring 24, connecting block 1 26, and connecting block 28. This completes the assembly of the entire hair clip assembly. When one set of hair clip assemblies to be assembled uses the bending plate 34 to bend the drive rod 25, the other set of hair clip assemblies with the bent drive rod 25 moves to the position between the two rollers 33 via the slider mechanism. The hydraulic cylinder 36 drives the lifting plate 35 to move downwards. During this process, the bending plate 34 bends the drive rod 25 of the hair clip assembly to be assembled, while the swing arm 31 uses the support 2 30 and the lifting plate 35 to bend the support 2 34. The vertical movement of the lowering plate 35 is converted into the lateral movement of the clamping plate 32 and the roller 33. Under the guidance of the upright plate 9 and the guide rod 38, the two rollers 33 move relative to each other, squeezing the outer inclined surfaces of the first hairpin body 22 and the second hairpin body 27. This causes the grippers at the bottom of the first hairpin body 22 and the second hairpin body 27 to expand to both sides and apply pressure to the feeding seat 13. The strength is judged by observing whether cracks or breaks appear in the left and right clamping mechanisms during the expansion process. If no cracks or breaks appear, it proves that the strength meets the standard; otherwise, it does not meet the standard. When it is necessary to test the strength of the hairpin assembly, the electromagnet 16 is energized. When the electromagnet 16 and the permanent magnet... When the magnetic poles on opposite sides of body 17 are the same, a repulsive force is generated between them. By adjusting the magnitude of the repulsive force between electromagnet 16 and permanent magnet 17, the pressure on hairpin body 12 and hairpin body 27 can be adjusted to achieve multi-level adjustment of strength test. When the hairpin assembly needs to be unloaded after completing the strength test, the magnetic poles of electromagnet 16 relative to permanent magnet 17 are changed, so that electromagnet 16 generates an attractive force on permanent magnet 17. This attractive force overcomes the elastic force of spring 19, causing slide rod 18 to drive material feeding seat 13 to make return motion. The gap between the two material feeding seats 13 gradually increases, and the assembled and tested hairpin assembly is finally unloaded under its own gravity.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-station automatic detection and assembly equipment for hair clips, comprising a support base (1), characterized in that, The support base (1) is equipped with a ring track component on top, and a slider mechanism is fixed on the ring track component by a connecting plate (12). A side plate (10) is welded to the outer wall of one side of the slider mechanism. An elastic component is installed on both side plates (10). A feeding seat (13) is fixed at one end of the elastic component. Side limiting plates (21) are fixed on both sides of the feeding seat (13). A flexible pad (20) is adhered to the inner surface of the feeding seat (13). A hair clip assembly is placed inside the two side limiting plates (21). The hair clip assembly includes a left clamping mechanism and a right clamping mechanism. The left clamping mechanism and the right clamping mechanism are connected by a torsion spring (24) and a plug rod (25). The support base (1) has an L-shaped plate (37) fixed on its top outer wall, and a hydraulic cylinder (36) is fixed on the top outer wall of the L-shaped plate (37). The output end of the hydraulic cylinder (36) is fixed with a lifting plate (35) by a pin, and a bending plate (34) is fixed at the bottom of the lifting plate (35). The support base (1) has a vertical plate (9) fixed on its top outer wall, and a guide rod (38) is movably connected to the through hole on the surface of the vertical plate (9). A clamping plate (32) is welded to one end of each of the two guide rods (38), and a roller (33) is movably connected to the inner wall of the clamping plate (32). A bracket (29) is welded to the top of the clamping plate (32), and a bracket (30) is welded to the bottom of the lifting plate (35). A swing arm (31) is movably connected between the inner wall of the bracket (30) and the inner wall of the bracket (29). The elastic element includes a mounting cylinder (14) and a sliding rod (18). The mounting cylinder (14) is fixed to the outer wall of one side of the side plate (10), and the sliding rod (18) is movably connected to the inner wall of the through hole opened at one end of the mounting cylinder (14). The sliding rod (18) and the feeding seat (13) are fixed by screws. A permanent magnet (17) is fixed at the end of the sliding rod (18) away from the feeding seat (13). An electromagnet (16) that works with the permanent magnet (17) is fixed on the inner wall of one side of the mounting cylinder (14). A spring (19) is sleeved on the outer wall of the sliding rod (18), and the two ends of the spring (19) are respectively fixed to the inner wall of one side of the mounting cylinder (14) and the outer wall of one side of the permanent magnet (17). When the strength of the hair clip assembly needs to be tested, a repulsive force is generated between the electromagnet and the permanent magnet, causing the hair clip assembly to withstand pressure. When the hair clip assembly completes the strength test and needs to be unloaded, the electromagnet generates an attractive force on the permanent magnet, and the gap between the two unloading seats gradually increases, allowing the hair clip assembly to be unloaded under its own gravity.

2. The multi-station automatic detection and assembly equipment for hair clips according to claim 1, characterized in that, The annular track component includes a drive wheel (7) and a timing belt (8). Both drive wheels (7) are movably connected to the top outer wall of the support base (1), and the timing belt (8) drives between the two drive wheels (7). A bracket (5) is fixed to the top outer wall of the support base (1), and a drive motor (6) is fixed to the top outer wall of the bracket (5). The output end of the drive motor (6) is connected to the top of one of the drive wheels (7) through a coupling, and the connecting plate (12) and the side wall of the timing belt (8) are fixedly connected.

3. The multi-station automatic detection and assembly equipment for hair clips according to claim 2, characterized in that, The annular track also includes an annular slide (4), and the annular slide (4) and the slider mechanism are properly matched. The slider mechanism includes a slide block (2) and a roller (11). The slide block (2) and the connecting plate (12) are fixedly connected. The roller (11) is movably connected to the bottom of the slide block (2) and is movably connected to the annular slide (4).

4. The multi-station automatic detection and assembly equipment for hair clips according to claim 1, characterized in that, The left clamping mechanism includes a hair clip body 1 (22) and a connecting block 2 (28), which are integrally formed with the hair clip body 1 (22). The right clamping mechanism includes a connecting block 1 (26) and a hair clip body 2 (27), which are integrally formed with the hair clip body 2 (27). The insert rod (25) is connected to the connecting block 1 (26) and the connecting block 2 (28) by insertion.

5. The multi-station automatic detection and assembly equipment for hair clips according to claim 4, characterized in that, Both the surface of the first hair clip body (22) and the surface of the second hair clip body (27) are provided with slots (23), and the slots (23) and the torsion spring (24) are used together.

6. The multi-station automatic detection and assembly equipment for hair clips according to claim 1, characterized in that, The top of the feeding seat (13) is fixed with a fork (15), and the surface of the fork (15) is provided with a positioning groove that matches the outer diameter of the insert rod (25).

7. The multi-station automatic detection and assembly equipment for hair clips according to claim 1, characterized in that, A controller (3) is installed on one side of the outer wall of the support base (1).

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