Test steps of zipper fatigue tester-qinsun

Test steps of zipper fatigue tester

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The zipper fatigue tester is used to test whether various zippers can withstand a specified number of reciprocating pulling operations under the action of transverse and longitudinal tension, and to evaluate the fatigue performance of the zipper.

Applicable standards:

　　CNS-1083, QB/T2171~2173

working principle:

　　 During the test, the machine drives the slider of the zipper at a constant speed to make a reciprocating movement 30 times per minute until the specified number of times. Check the condition of the test sample to determine the performance of the product.

The main parameters:

　　 1. Reciprocating stroke: 75mm;

　　2. Width of transverse clamping device: 25mm;

　　3. The total weight of the longitudinal clamping device: 0.28～0.34kg;

　　 4. The distance between the two clamping devices: 6.35mm;

　　 5. Counter: electronic 0～999999;

　　 6. Volume: 28×55×66 (W×D×H);

　　 7. Weight: about 50kg.

　　 Test steps:

　　 1. Roughly fix the end of the zipper (bottom end) on the fixing point A (the pull tab is inward);

　　2, fix the pull tab on the pull tab fixture;

　　3. Fix the front end (top end) of the zipper on points D and E;

　　4. Loosen the fixing point A, pull up the end of the zipper so that the fixing pin falls in the middle of the balance plate hole, and then clamp point A (at this time visually inspect D and E points on the same horizontal line);

　　5. Loosen the horizontal clamping blocks B and C, and place the cloth tapes on both sides of the zipper tape into the clamps B and C for clamping. The clamping gap is about 5 nun away from the tooth feet. At this time, the five fixing points are fixed;

　　6. Adjust the pull time meter to the upper limit, loosen the pull tab clamp, and visually check whether the zipper keeps a straight line. If it does not meet the requirements, readjust until the clamping is completed;

　　7. Different specifications of zippers shall be loaded in the horizontal and vertical directions according to the specified requirements.

For more information, please visit:
https://www.qinsun-lab.com/index.html

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