Zipper fatigue testing machine

Abstract

The utility model discloses a zipper fatigue testing machine which comprises a machine body, a zipper tooth clamp group and a puller clamp, the zipper tooth clamp group and the puller clamp are both arranged on the machine body and are respectively used for fixing zipper teeth and a puller of a zipper, an arc-shaped track is arranged on the machine body, and the zipper tooth clamp group and the puller clamp are arranged on the machine body. The puller clamp is driven by a driving mechanism to slide in the track in a reciprocating mode. According to the utility model, the zipper is deformed along the lateral direction by driving the puller clamp and the puller to move in the arc-shaped track, so that the wear condition of the zipper in actual use can be simulated more truly.

Description

Technical Field

[0001] The utility model relates to the field of zippers, in particular to a zipper fatigue testing machine. Background Art

[0002] A zipper is a fastener consisting of two strips with a row of metal or plastic teeth on each side. It is used to connect the edges of an opening (such as clothing or bag openings). A sliding piece can pull the two rows of teeth into an interlocking position to close the opening. It is used to sew on clothing, pockets or purses. During the product manufacturing process, zipper fatigue testing is a key step in ensuring product quality. Zipper fatigue testing is to evaluate the durability and reliability of zippers by simulating actual use conditions. During the test, the zipper is opened and closed quickly to observe whether it can withstand repeated use and maintain normal performance and function.

[0003] Zipper fatigue testing machines are basically used in zipper fatigue testing. Zipper fatigue testing machines usually fix the chain teeth with several clamps, and then use a driving device to drive the pull head to move back and forth along the chain teeth so that the chain teeth continue to alternate between the two states of engagement and separation until a set number of times is reached. During the test, the driving device only provides force to the pull head along the direction of the chain teeth. However, in daily use, the direction of the force applied by the hand to pull the pull head is usually not exactly the same as the direction of the chain teeth. Therefore, existing zipper fatigue testing machines are difficult to simulate the actual use of the zipper. Utility Model Content

[0004] The utility model aims to provide a zipper fatigue testing machine, which drives a slider clamp and a slider to move in an arc track, so that the zipper produces lateral deformation, thereby being able to more realistically simulate the wear of the zipper in actual use.

[0005] The technical solution adopted by the utility model to solve the above problems is:

[0006] A zipper fatigue testing machine comprises a machine body, a chain tooth clamp group and a slider clamp, wherein the chain tooth clamp group and the slider clamp are both arranged on the machine body, the chain tooth clamp group and the slider clamp are respectively used to fix the chain teeth and the slider of the zipper, an arc-shaped track is opened on the machine body, and the slider clamp is driven by a driving mechanism to slide back and forth in the track.

[0007] In the above technical solution, preferably, the track is a through hole penetrating the front panel of the body, the track is serpentine, the driving mechanism is arranged in the cavity of the body, and the driving mechanism is connected to the rear side of the slider clamp.

[0008] In the above technical solution, preferably, the chain tooth clamp group includes an upper clamp, two side clamps and two lower clamps, the two side clamps are respectively connected to the upper ends of the two tension gauges through connecting ropes and guide wheels, the two lower clamps are respectively connected to the upper ends of the other two tension gauges, and the lower ends of the four tension gauges are fixedly connected to the machine body.

[0009] In the above technical solution, preferably, two linear guide rails are arranged on the machine body, and the two side clamps are slidably arranged in the two linear guide rails respectively.

[0010] In the above technical solution, preferably, both left and right ends of the slider clamp are rotatably provided with a plurality of bearing rollers with U-shaped grooves.

[0011] In the above technical solution, preferably, the slider clamp comprises a shell and a movable block, and the movable block is driven by a screw to slide up and down on the upper end of the shell.

[0012] In the above technical solution, preferably, the driving mechanism includes a motor, a rotating disk and a connecting rod. The driving mechanism is arranged in the cavity of the machine body. The rotating disk is fixed on the motor and the rotating disk is driven to rotate by the motor. The lower end of the connecting rod is hinged to the outer end of the rotating disk, and the upper end of the connecting rod is hinged to the rear side of the slider clamp.

[0013] Compared with the prior art, the utility model has the following advantages and effects:

[0014] Since the moving trajectory of the slider in the utility model is arc-shaped under the action of the slider clamp and the track, the slider will exert lateral pulling force on the chain teeth when moving, causing the zipper to deform laterally, thereby more in line with the force applied to the chain teeth when the slider is pulled by hand in daily use. Therefore, compared with the existing zipper fatigue testing machine, the utility model can more realistically simulate the wear conditions of the zipper in actual use, thereby improving the practicality of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the use status of the zipper fatigue testing machine according to the embodiment of the utility model.

[0016] Figure 2 yes Figure 1 Schematic diagram of part of the structure after the zipper is removed.

[0017] Figure 3 yes Figure 2 Enlarged view of the middle slider clamp.

[0018] Figure 4 yes Figure 2 Schematic diagram of the back structure.

[0019] Figure 5 yes Figure 4 Schematic diagram of the structure after the motor is hidden.

[0020] Among them, the body 1, the track 11, the chain tooth clamp group 2, the upper clamp 21, the side clamp 22, the lower clamp 23, the dynamometer 24, the linear guide 25, the slider clamp 3, the bearing roller 31, the shell 32, the movable block 33, the screw 34, the driving mechanism 4, the motor 41, the rotating disk 42, the connecting rod 43, the zipper 5, the chain tooth 51, the slider 52, and the pull rod 53. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0022] See also Figure 1-Figure 5 The present embodiment is a zipper fatigue testing machine, comprising a machine body 1, a chain tooth clamp group 2 and a slider clamp 3, wherein the chain tooth clamp group 2 and the slider clamp 3 are both arranged on the machine body 1, and the chain tooth clamp group 2 and the slider clamp 3 are respectively used to fix the chain teeth 51 and the slider 52 of the zipper 5, and an arc-shaped track 11 is opened on the machine body 1, and the slider clamp 3 is driven by a driving mechanism 4 to slide back and forth in the track 11.

[0023] When the utility model is used, the chain teeth 51 of the zipper 5 to be tested are fixed by the chain teeth clamp group 2, and the slider 52 of the zipper 5 is fixed by the slider clamp 3. The driving mechanism 4 is started to drive the slider clamp 3 to reciprocate in the track 11, thereby driving the slider 52 to reciprocate to achieve repeated engagement and separation of the chain teeth 51, and the zipper 5 is subjected to fatigue test. Since the moving track of the slider 52 in the utility model is arc-shaped under the action of the slider clamp 3 and the track 11, the slider 52 will apply lateral pulling force (such as lateral pulling force) to the chain teeth 51 when moving. Figure 1 As shown in FIG, when the pull head 52 moves, it applies a pulling force in the left-right direction to the chain element 51, so that the zipper 5 generates a lateral force (i.e. Figure 1 The fatigue testing machine for zipper 5 can simulate the deformation of zipper 5 in the left and right directions, so as to better fit the stress condition of chain tooth 51 when the slider 52 is pulled by hand in daily use. Therefore, compared with the existing zipper 5 fatigue testing machine, the utility model can more realistically simulate the wear condition of zipper 5 in actual use, thereby improving the practicality of test results.

[0024] See also Figure 1 , Figure 2 The chain tooth clamp group 2 includes an upper clamp 21, two side clamps 22 and two lower clamps 23. The two side clamps 22 are respectively connected to the upper ends of two tension gauges 24 through connecting ropes and guide wheels. The two lower clamps 23 are respectively connected to the upper ends of the other two tension gauges 24. The lower ends of the four tension gauges 24 are fixedly connected to the body 1.

[0025] When the zipper 5 is fixed to the chain element clamp group 2, the upper end of the zipper 5 in the bite state is fixed by the upper clamp 21, the two sides of the chain element 51 in the bite state are fixed by two side clamps 22 respectively, and the lower ends of the two chain elements 51 in the separated state are fixed by two lower clamps 23 respectively. At the same time, the tension gauge 24 connected to the side clamp 22 and the lower clamp 23 can display the tension on the side and lower end of the zipper 5 at this time, so as to facilitate the adjustment of the tension on the zipper 5.

[0026] See also Figure 2 The machine body 1 is provided with two linear guide rails 25 , and the two side clamps 22 are slidably arranged in the two linear guide rails 25 .

[0027] When the zipper 5 at the fixed position of the side clamps 22 is separated by the pull head 52, the two side clamps 22 can move in the linear guide rail 25 to move away from the zipper 5, thereby pulling the two separated chain teeth 51 apart. When the zipper 5 at the fixed position of the side clamps 22 is driven to engage by the pull head 52, the two side clamps 22 move and reset in the linear guide rail 25. The two side clamps 22 always provide a separating pulling force to the two chain teeth 51, thereby hindering the engagement of the two chain teeth 51. This is in line with the actual use of the zipper 5, when the two chain teeth 51 are stretched apart (for example, a full pull rod 53 box), the pull head 52 is pulled to drive the chain teeth 51 to engage, thereby improving the practicality of the test results.

[0028] See also Figure 2 , Figure 4 The track 11 is a through hole that penetrates the front panel of the body 1. The track 11 is serpentine. The driving mechanism 4 is arranged in the cavity of the body 1. The driving mechanism 4 is connected to the rear side of the slider fixture 3.

[0029] The serpentine track 11 allows the slider clamp 3 to repeatedly swing left and right as it moves along the track 11, so that the slider 52 can swing left and right alternately to apply left and right pulling forces to the chain teeth 51, and can simultaneously test the degree of wear of the zipper 5 when it is subjected to pulling forces to the left or right, which is in line with the usage scenario where the zipper 5 is sometimes subjected to pulling forces to the left and sometimes to the right in different usage scenarios.

[0030] The drive mechanism 4 is arranged in the body 1 to reduce dust pollution, thereby reducing the frequency of maintenance of the drive mechanism 4 .

[0031] See also Figure 3 The left and right ends of the slider fixture 3 are both rotatably provided with a plurality of bearing rollers 31 with U-shaped grooves.

[0032] The bearing roller 31 is used to reduce the friction resistance of the slider clamp 3 when it moves in the track 11, thereby reducing the wear of the slider clamp 3 and the track 11 and improving the service life of the utility model. The U-shaped groove on the bearing roller 31 is used to clamp the slider clamp 3 to the track 11 to prevent the slider clamp 3 from falling off the track 11 when moving, thereby ensuring the normal function of the utility model.

[0033] See also Figure 3 The slider fixture 3 includes a housing 32 and a movable block 33 , and the movable block 33 is driven by a screw 34 to slide up and down on the upper end of the housing 32 .

[0034] The slider 52 is usually provided with a movable pull rod 53 for facilitating pulling the slider 52. In the present embodiment, the pull rod 53 is inserted into the shell 32 and then fixed between the movable block 33 and the shell 32 by rotating the screw 34. This has the advantages of simple structure and convenient assembly and disassembly. At the same time, since the distance between the slider clamp 3 and the zipper 5 is small, even if the pull rod 53 is loose in the slider clamp 3, the risk of the pull rod 53 falling out of the shell 32 can be reduced, thereby ensuring the normal progress of the fatigue test.

[0035] See also Figure 4 , Figure 5 The driving mechanism 4 includes a motor 41, a rotating disk 42 and a connecting rod 43. The driving mechanism 4 is arranged in the cavity of the body 1. The rotating disk 42 is fixed on the motor 41 and the rotating disk 42 is driven to rotate by the motor 41. The lower end of the connecting rod 43 is hinged to the outer end of the rotating disk 42, and the upper end of the connecting rod 43 is hinged to the rear side of the slider clamp 3.

[0036] The motor 41 drives the rotating disk 42 to rotate. According to the principle of the crank slider mechanism, when the rotating disk 42 rotates, it can drive the lower end of the connecting rod 43 to rotate in a circle, and the upper end of the connecting rod 43 can drive the pulling head clamp 3 to move back and forth along the track 11, which has the advantages of simple structure and easy installation and maintenance.

[0037] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.

Claims

1. A zipper fatigue testing machine, characterized in that: The zipper comprises a machine body, a chain tooth clamp group and a slider clamp, wherein the chain tooth clamp group and the slider clamp are both arranged on the machine body, the chain tooth clamp group and the slider clamp are respectively used to fix the chain teeth and the slider of the zipper, an arc-shaped track is opened on the machine body, and the slider clamp is driven by a driving mechanism to slide back and forth in the track.

2. The zipper fatigue testing machine according to claim 1, characterized in that: The track is a through hole that penetrates the front panel of the machine body, and the track is serpentine. The driving mechanism is arranged in the cavity of the machine body, and the driving mechanism is connected to the rear side of the slider clamp.

3. The zipper fatigue testing machine according to claim 1, characterized in that: The chain tooth clamp group includes an upper clamp, two side clamps and two lower clamps. The two side clamps are respectively connected to the upper ends of two tension gauges through connecting ropes and guide wheels, and the two lower clamps are respectively connected to the upper ends of the other two tension gauges. The lower ends of the four tension gauges are fixedly connected to the machine body.

4. The zipper fatigue testing machine according to claim 1, characterized in that: Two linear guide rails are arranged on the machine body, and two side clamps are slidably arranged in the two linear guide rails respectively.

5. The zipper fatigue testing machine according to claim 1, characterized in that: A plurality of bearing rollers with U-shaped grooves are rotatably arranged at both left and right ends of the pull head clamp.

6. The zipper fatigue testing machine according to claim 1, characterized in that: The slider clamp comprises a shell and a movable block, and the movable block is driven by a screw to slide up and down on the upper end of the shell.

7. The zipper fatigue testing machine according to claim 1, characterized in that: The driving mechanism includes a motor, a rotating disk and a connecting rod. The driving mechanism is arranged in the cavity of the machine body. The rotating disk is fixed on the motor and is driven to rotate by the motor. The lower end of the connecting rod is hinged to the outer end of the rotating disk, and the upper end of the connecting rod is hinged to the rear side of the slider clamp.

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