Zipper durability testing device

Abstract

The invention relates to a zipper durability testing device, and the device comprises a clamping and positioning mechanism which is used for clamping the two ends of a to-be-tested zipper; the traction mechanism is movably erected above the clamping and positioning mechanism and is used for clamping the zipper head and driving the zipper head to linearly move back and forth in the horizontal direction; the jacking mechanism and the traction mechanism are oppositely arranged in the vertical direction, the jacking mechanism comprises a translation driving part, a jacking driving part and a jacking block, the translation driving part is used for driving the jacking block to move in the horizontal direction, the jacking driving part is used for driving the jacking block to move in the vertical direction, and the translation driving part is used for driving the jacking block to move in the vertical direction. An arc-shaped curved surface is formed at the upper end of the jacking block, and when the jacking block moves upwards, the arc-shaped curved surface extrudes the zipper to be tested so that the zipper to be tested can be bent. The zipper durability testing device is reasonable in structure, can flexibly test the durability of a zipper in a bending state, enables test data to better conform to the actual use state of the zipper, and provides more accurate reference for the performance of the zipper.

Description

Technical Field

[0001] The present invention relates to the field of zippers, and in particular to a zipper durability testing device. Background Art

[0002] Zippers are a common quick-closing component in modern life. Generally, zippers include a pair of zipper racks and a zipper head that can close or open the paired zipper racks. Zippers need to undergo relevant performance tests after production. Existing durability tests for zippers only conduct linear reciprocating tests on zippers. However, with the continuous development of zipper applications, zippers are often installed on curved fabrics, such as luggage and tents. The durability of zippers in a bent state is different from that in a straight state. The current method cannot meet the performance test requirements for the bent state of zippers. The test results are less applicable and have a narrow scope of application. Summary of the Invention

[0003] The purpose of the present invention is to provide a zipper durability testing device with a reasonable structure, which can flexibly test the durability of a zipper in a bent state, so that the test data is more consistent with the actual use state of the zipper, and provide a more accurate reference for the performance of the zipper.

[0004] A zipper durability testing device, comprising: A clamping and positioning mechanism, used to clamp the two ends of the zipper to be tested; A traction mechanism, movably mounted above the clamping and positioning mechanism, for clamping the zipper head and driving the zipper head to move back and forth in a horizontal direction; and The jacking mechanism is arranged opposite to the traction mechanism in the vertical direction. The jacking mechanism includes a translation drive member, a jacking drive member, and a jacking block. The translation drive member is used to drive the jacking block to move in the horizontal direction. The jacking drive member is used to drive the jacking block to move in the vertical direction. The upper end of the jacking block is formed into an arc-shaped surface. When the jacking block moves upward, the arc-shaped surface squeezes the zipper to be tested to cause it to bend.

[0005] In the above technical solution, the clamping and positioning mechanism can clamp the two ends of the zipper, thereby fixing and tensioning the zipper. The lifting block of the lifting mechanism has a curved surface. Driven by the translational drive member, it can move below the position where the zipper needs to bend. Driven by the lifting drive member, it moves upward, squeezing the zipper from bottom to top through the curved surface, causing the zipper to bend. The traction mechanism then clamps the zipper head and drives it to move back and forth in a straight line, thereby simulating the closing and opening of the zipper in a bent state. This method can flexibly test the durability of the zipper in a bent state, making the test data more consistent with the actual use of the zipper and providing a more accurate reference for the zipper's performance.

[0006] Furthermore, the clamping and positioning mechanism includes a first clamping member, a second clamping member, and a tensioning drive member. The first clamping member and the second clamping member are arranged opposite to each other. The tensioning drive member is connected to the first clamping member or the second clamping member. The tensioning drive member can drive one of the first clamping member and the second clamping member to move closer to or away from the other.

[0007] In the above technical solution, the first clamping member and the second clamping member can clamp the two ends of the zipper respectively, and the tensioning driving member can drive one of the two to move in translation, thereby adjusting the tension of the zipper.

[0008] Furthermore, the traction mechanism includes a driving assembly, a clamping assembly, and a telescopic rod, one end of the telescopic rod is connected to the driving assembly, and the other end is connected to the clamping assembly. The driving assembly is used to drive the clamping assembly to move horizontally, and the telescopic rod can be extended and retracted in the vertical direction under the action of external force.

[0009] In the above technical solution, the driving assembly and the clamping assembly are connected by a telescopic rod, so that the clamping assembly can move in the vertical direction along with the telescopic rod, so that the moving path of the clamping assembly can match the arc surface, thereby realizing the closing and opening of the zipper in a bent state.

[0010] Furthermore, the driving assembly includes a driving wheel, a connecting rod, a guide rail, and a slider, the slider is slidingly connected to the guide rail, one end of the connecting rod is rotationally connected to the driving wheel, the other end of the connecting rod is rotationally connected to the slider, and the telescopic rod is connected to the slider.

[0011] In the above technical solution, when the driving wheel rotates, the slider can be driven by the connecting rod to make the slider do reciprocating linear motion along the guide rail, thereby realizing the reciprocating movement of the clamping assembly. The structure is simple and reasonable and easy to implement.

[0012] Furthermore, the clamping assembly includes a first clamping plate, a second clamping plate, and a clamping drive member, the first clamping plate and the second clamping plate are arranged opposite to each other, the output end of the clamping drive member is connected to the first clamping plate, and the clamping drive member can drive the first clamping plate to move closer to or away from the second clamping plate.

[0013] In the above technical solution, the clamping drive member can drive the first clamping plate to approach or move away from the second clamping plate, thereby clamping or loosening the zipper slider.

[0014] Furthermore, anti-slip teeth are provided on the surfaces of the first clamping plate and the second clamping plate.

[0015] In the above technical solution, the anti-slip teeth can increase the friction between the first and second clamping plates and the zipper head, thereby preventing the zipper head from loosening and falling off during the test.

[0016] Furthermore, it also includes a follower wheel, which is arranged adjacent to the clamping assembly. When the lifting block moves upward, the follower wheel can abut against the arc surface and roll along the arc surface to drive the telescopic rod to extend and retract along the arc surface.

[0017] In the above technical solution, the follower wheel can be against the arc surface. When the clamping assembly moves horizontally, the follower wheel can roll on the arc surface. The force generated by the arc surface on the follower wheel can drive the telescopic rod to extend and retract. In this way, the telescopic rod can automatically extend and retract along the surface of the arc surface, thereby matching the moving path of the clamping assembly with the arc surface, making the force on the zipper more reasonable and the test more accurate.

[0018] Furthermore, when the clamping and positioning mechanism clamps the zipper to be tested, the traction mechanism and the lifting mechanism are respectively located on the upper and lower sides of the zipper.

[0019] Furthermore, the arc-shaped surface is provided with a space-avoiding groove for the zipper head to pass through.

[0020] In the above technical solution, the existing zipper head generally has a protruding structure under the chain teeth. By setting an air avoidance groove, the arc surface can support both sides of the zipper while avoiding friction between the zipper head and the arc surface, making the tested zipper state closer to the actual usage state, thereby improving the accuracy of the test.

[0021] Furthermore, the lifting block is detachable.

[0022] In the above technical solution, the lifting block is configured to be detachable, and lifting blocks of different arcs can be replaced as needed to meet different testing requirements.

[0023] Compared with the existing technology, the present invention has the following advantages: the clamping and positioning mechanism can clamp the two ends of the zipper, thereby fixing and tensioning the zipper; the lifting block of the lifting mechanism has a curved surface, which can be driven by the translation drive to move below the position where the zipper needs to bend. It is driven by the lifting drive to move upward, squeezing the zipper from bottom to top through the curved surface, causing the zipper to bend. The traction mechanism then clamps the zipper head and drives it to move back and forth in a straight line, thereby simulating the closing and opening of the zipper in a bent state. This method can flexibly test the durability of the zipper in a bent state, making the test data more consistent with the actual use of the zipper and providing a more accurate reference for the performance of the zipper. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the structure of a zipper durability testing device according to an embodiment of the present invention.

[0025] Figure 2 Schematic diagram of the structure of the lifting mechanism of an embodiment of the present invention.

[0026] Figure 3 Schematic diagram of the structure of the clamping and positioning mechanism according to an embodiment of the present invention.

[0027] Figure 4 Schematic diagram of the structure of the traction mechanism according to an embodiment of the present invention.

[0028] Figure 5 Schematic diagram of the structure of the clamping assembly according to an embodiment of the present invention.

[0029] Description of Figure Numbers: Clamping and positioning mechanism 1, first clamping member 11, second clamping member 12, tensioning drive member 13, traction mechanism 2, drive assembly 21, drive wheel 211, connecting rod 212, guide rail 213, slider 214, clamping assembly 22, first clamping plate 221, second clamping plate 222, clamping drive member 223, anti-slip teeth 224, telescopic rod 23, follower wheel 24, connecting plate 25, mounting plate 26, lifting mechanism 3, translation drive member 31, lifting drive member 32, lifting block 33, arcuate surface 331, and air avoidance groove 332. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0032] Please refer to Figures 1 to 5In a preferred embodiment, the zipper durability testing device of the present invention mainly includes a clamping and positioning mechanism 1, a traction mechanism 2, and a lifting mechanism 3. The clamping and positioning mechanism 1 is used to clamp the two ends of the zipper to be tested to fix the zipper to be tested. The traction mechanism 2 can be movably mounted above the clamping and positioning mechanism 1, and is used to clamp the zipper head and drive the zipper head to move back and forth in a straight line in the horizontal direction. The lifting mechanism 3 and the traction mechanism 2 are arranged opposite to each other in the vertical direction. The lifting mechanism 3 includes a translation drive member 31, a lifting drive member 32, and a lifting block 33. The translation drive member 31 is used to drive the lifting block 33 to move in the horizontal direction, and the lifting drive member 32 is used to drive the lifting block 33 to move in the vertical direction. The upper end of the lifting block 33 is formed into an arc-shaped surface 331. When the lifting block 33 moves upward, the arc-shaped surface 331 squeezes the zipper to be tested to make it bend.

[0033] For example, after the clamping and positioning mechanism 1 clamps the two ends of the zipper to be tested, the traction mechanism 2 and the lifting mechanism 3 are respectively located on the upper and lower sides of the zipper. The lifting block 33 has an arc-shaped surface 331, and the arc-shaped surface 331 can form a curved surface with an upward convexity in the middle, and its curvature can be designed according to actual test needs. The translation drive 31 and the lifting drive 32 can adopt existing linear drive devices. The translation drive 31 can drive the lifting block 33 to move in the horizontal direction, thereby adjusting the relative position of the lifting block 33 and the zipper. For example, the translation drive 31 can drive the lifting block 33 close to one end of the zipper, or close to the middle of the zipper, so as to test the zipper performance under different bending positions. Once the horizontal position of the lifting block 33 is determined, the lifting drive 32 drives the lifting block 33 upward, squeezing the zipper from bottom to top via the curved surface 331, causing it to bend. The traction mechanism 2 then grips the zipper slider and drives it in a linear reciprocating motion, simulating the closing and opening of the zipper in a bent state. This method allows for flexible testing of the zipper's durability in a bent state, ensuring that test data more closely reflects actual zipper usage and providing a more accurate reference for zipper performance.

[0034] Please refer to Figure 3 The clamping and positioning mechanism 1 includes a first clamping member 11, a second clamping member 12, and a tensioning driving member 13. The first clamping member 11 and the second clamping member 12 are arranged opposite to each other. The tensioning driving member 13 is connected to the first clamping member 11 or the second clamping member 12. The tensioning driving member 13 can drive one of the first clamping member 11 and the second clamping member 12 to move closer to or away from the other.

[0035] For example, the first clamping member 11 and the second clamping member 12 may be provided by a pair of pneumatic cylinders. In this embodiment, the tensioning driver 13 is a linear cylinder connected to the first clamping member 11. The tensioning driver 13 is capable of driving the first clamping member 11 to move horizontally, thereby adjusting the zipper tension. In some possible embodiments, a force sensor may be provided on the first clamping member 11 or the second clamping member 12 to sense the zipper tension in real time. For example, after the first and second clamping members 11 and 12 clamp the ends of the zipper, the tensioning driver 13 drives the first clamping member 11 away from the second clamping member 12, increasing the tension. When the tension reaches a preset value, the tensioning driver 13 stops. During testing, as the lifting block 33 moves upward, the tension in the zipper increases. At this time, the tensioning driver 13 drives the first clamping member 11 toward the second clamping member 12 based on the tension, thereby reducing the zipper tension and preventing the zipper from breaking or loosening.

[0036] Please refer to Figure 4 and Figure 5 The traction mechanism 2 includes a drive assembly 21, a clamping assembly 22, and a telescopic rod 23. One end of the telescopic rod 23 is connected to the drive assembly 21, and the other end is connected to the clamping assembly 22. The drive assembly 21 is used to drive the clamping assembly 22 to move horizontally, while the telescopic rod 23 can be extended and retracted vertically under the action of an external force. The telescopic rod 23 connects the drive assembly 21 and the clamping assembly 22, allowing the clamping assembly 22 to move vertically with the telescopic rod 23. The movement path of the clamping assembly 22 matches the curved surface 331, allowing the zipper to close and open in a curved state.

[0037] Among them, the driving assembly 21 includes a driving wheel 211, a connecting rod 212, a guide rail 213, and a slider 214. The slider 214 is slidingly connected to the guide rail 213, one end of the connecting rod 212 is rotationally connected to the driving wheel 211, and the other end of the connecting rod 212 is rotationally connected to the slider 214. The telescopic rod 23 is connected to the slider 214.

[0038] Exemplarily, the guide rail 213 is arranged above the first clamping member 11 and the second clamping member 12, and the slider 214 is configured to slide along the guide rail 213. The driving wheel 211 is configured to be rotatable, and is rotatably connected to one end of the connecting rod 212, and the other end of the connecting rod 212 is rotatably connected to the slider 214. It is understandable that the position where the connecting rod 212 is connected to the driving wheel 211 can be close to the outer periphery of the driving wheel 211, so that when the driving wheel 211 rotates, the connecting rod 212 can be driven to rotate and swing. In a specific implementation, the driving wheel 211 can be driven to rotate by a driving member not shown in the figure. The driving member can be, for example, a motor, whose output end can be directly connected to the driving wheel 211, or the driving wheel 211 can be driven to rotate by an existing transmission structure such as a transmission belt or gear. When the driving wheel 211 rotates, the slider 214 can be driven by the connecting rod 212, so that the slider 214 performs reciprocating linear motion along the guide rail 213, thereby realizing the reciprocating movement of the clamping assembly 22. The structure is simple and reasonable and easy to implement.

[0039] Please refer to Figure 5 The clamping assembly 22 includes a first clamping plate 221, a second clamping plate 222, and a clamping driver 223. The first clamping plate 221 and the second clamping plate 222 are arranged opposite each other. The output end of the clamping driver 223 is connected to the first clamping plate 221. The clamping driver 223 can drive the first clamping plate 221 toward or away from the second clamping plate 222. The clamping driver 223 can be an existing linear drive device, such as a cylinder, which can drive the first clamping plate 221 toward or away from the second clamping plate 222, thereby clamping or loosening the zipper slider.

[0040] In this embodiment, the surfaces of the first and second clamping plates 221 and 222 are provided with anti-slip teeth 224. The anti-slip teeth 224 can increase the friction between the first and second clamping plates 221 and 222 and the zipper head, preventing the zipper head from loosening and falling during the test.

[0041] In this embodiment, a follower wheel 24 is further included. The follower wheel 24 is arranged adjacent to the clamping assembly 22. When the lifting block 33 moves upward, the follower wheel 24 can abut against the arc surface 331 and roll along the arc surface 331 to drive the telescopic rod 23 to extend and retract along the arc surface 331.

[0042] Exemplarily, a mounting plate 26 is provided at one end of the telescopic rod 23 away from the slider 214, and the follower wheel 24 is connected to the mounting plate 26 via a connecting plate 25. The outer peripheral surface of the follower wheel 24 can be set to be lower than the clamping assembly 22 to ensure that it can abut against the arc surface 331.

[0043] In some possible embodiments, the height of the follower wheel 24 can be adjustable to ensure that the follower wheel 24 matches the height of the curved surface. For example, the connecting plate 25 can be connected to the mounting plate 26 via a waist-shaped hole extending vertically and secured with screws passing through the waist-shaped hole. By adjusting the screws, the relative position between the connecting plate 25 and the mounting plate 26 can be adjusted, thereby adjusting the height of the follower wheel 24.

[0044] When the clamping assembly 22 moves horizontally, the follower wheel 24 can roll on the arc surface 331. The force exerted by the arc surface 331 on the follower wheel 24 can drive the telescopic rod 23 to extend and retract. In this way, the telescopic rod 23 can automatically extend and retract along the surface of the arc surface 331, thereby matching the moving path of the clamping assembly 22 with the arc surface 331, making the force applied to the zipper more reasonable and the test more accurate.

[0045] In this embodiment, the curved surface 331 is provided with a clearance groove 332 for the zipper pull to pass through. It should be noted that existing zipper pulls generally have a protruding structure below the sprocket teeth. By providing the clearance groove 332, the curved surface 331 can support both sides of the zipper while preventing friction between the zipper pull and the curved surface 331. This makes the tested zipper state closer to the actual use state, thereby improving the accuracy of the test.

[0046] In this embodiment, the lifting block 33 is detachable. The lifting block 33 is configured to be detachable, and the lifting block 33 of different curvatures can be replaced as needed to meet different testing requirements.

[0047] In the description of the present invention, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A zipper durability testing device, characterized in that: include: A clamping and positioning mechanism, used to clamp the two ends of the zipper to be tested; A traction mechanism is movably mounted above the clamping and positioning mechanism, and is used to clamp the zipper head and drive the zipper head to move back and forth in a horizontal direction; as well as The jacking mechanism is arranged opposite to the traction mechanism in the vertical direction. The jacking mechanism includes a translation drive member, a jacking drive member, and a jacking block. The translation drive member is used to drive the jacking block to move in the horizontal direction. The jacking drive member is used to drive the jacking block to move in the vertical direction. The upper end of the jacking block is formed into an arc-shaped surface. When the jacking block moves upward, the arc-shaped surface squeezes the zipper to be tested to cause it to bend.

2. The zipper durability testing device according to claim 1, characterized in that: The clamping and positioning mechanism includes a first clamping member, a second clamping member, and a tensioning drive member. The first clamping member and the second clamping member are arranged opposite to each other. The tensioning drive member is connected to the first clamping member or the second clamping member. The tensioning drive member can drive one of the first clamping member and the second clamping member to move closer to or away from the other.

3. The zipper durability testing device according to claim 1, characterized in that: The traction mechanism includes a driving assembly, a clamping assembly, and a telescopic rod. One end of the telescopic rod is connected to the driving assembly, and the other end is connected to the clamping assembly. The driving assembly is used to drive the clamping assembly to move horizontally, and the telescopic rod can be extended and retracted in the vertical direction under the action of external force.

4. The zipper durability testing device according to claim 3, characterized in that: The driving assembly includes a driving wheel, a connecting rod, a guide rail, and a slider. The slider is slidably connected to the guide rail, one end of the connecting rod is rotationally connected to the driving wheel, the other end of the connecting rod is rotationally connected to the slider, and the telescopic rod is connected to the slider.

5. The zipper durability testing device according to claim 3, characterized in that: The clamping assembly includes a first clamping plate, a second clamping plate, and a clamping drive member. The first clamping plate and the second clamping plate are arranged opposite to each other. The output end of the clamping drive member is connected to the first clamping plate. The clamping drive member can drive the first clamping plate to move closer to or away from the second clamping plate.

6. The zipper durability testing device according to claim 5, characterized in that: Anti-slip teeth are provided on the surfaces of the first clamping plate and the second clamping plate.

7. The zipper durability testing device according to claim 3, characterized in that: It also includes a follower wheel, which is arranged adjacent to the clamping assembly. When the lifting block moves upward, the follower wheel can abut against the arc surface and roll along the arc surface to drive the telescopic rod to extend and retract along the arc surface.

8. The zipper durability testing device according to claim 1, characterized in that: When the clamping and positioning mechanism clamps the zipper to be tested, the traction mechanism and the lifting mechanism are respectively located on the upper and lower sides of the zipper.

9. The zipper durability testing device according to claim 1, characterized in that: The arc-shaped surface is provided with a space-avoiding groove for the zipper head to pass through.

10. The zipper durability testing device according to claim 1, characterized in that: The lifting block is detachable.

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