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Zipper Reciprocating Fatigue Testing Machine Testing preparation and process




Zipper reciprocating fatigue testing machine before the test preparation1, adjust the knob until the pull tab clamping device B is at its highest position and insert a fixed pad in this unit.2. Fasten the zipper pull tab to the pull tab clamping device B.3, the first zipper tail (lower end) is roughly fixed in the upper part of the head on the A point (at this time the head center line and the zipper center vertical).4, the zipper front (upper end) fixed in the two longitudinal head E point.5, slightly loose the upper part of the clip A fixed point, pull the end of the zipper pull up so that the horizontal axis of the rotating plate G parallel with the film H, and then clamp the top of the head A point (at this time visual longitudinal head two E points in the same On the horizon)6, according to zipper type adjustment Longitudinal spring scale J upper and lower nuts Apply zipper tape with the appropriate vertical load as follows:7. Adjust the knob until the pull tab clamping device B is in the lowest position, and release the two horizontal gripping heads D so that both sides of the zipper are placed in the two clamps (this time, the two horizontal pins are perpendicular to the zipper And on the same horizontal line), the chuck should have a 5.0 mm clearance on both sides of the sprocket.8, according to the zipper model to adjust the horizontal spring scale I upper and lower nuts apply zipper cloth with the appropriate lateral load as shown in Table 2:9, adjust both sides of the adjustment screw C and both sides of the edge of the head D is 5.0 mm distance.
bag plastic zipper reciprocating pull tester test method:1. Tensile tensile test: bite zipper, fixture were fixed with the chain parallel to the cloth, with a certain speed vertical pull. To test the resistance strength of the zipper closure teeth.2. Single-tooth tensile test: the zipper separated, the fixture into a ring on its teeth. And then a certain speed vertical pull up,The strength of the bite resistance between the zippers and the cloth.3. Insert the transverse tensile strength: the fixture fixed to the edge of the tooth and inserted with the parallel, and then a certain speed vertical pull up. To test the strength of the occlusal resistance.4. Pull the head of the force test: pull the slider pull the middle of the zipper, and then pull the head in the locked (locked) state, the chain is separated and fixedAfter the pull. Test the strength of the pull head and the strength of the teeth in the chain.5. Under the transverse tensile test: the pull down to the bottom, the chain left and right fixed on the fixture. And then a certain speed vertical pull upPull to test the resistance of the zipper under the resistance.6. box, insert the straight pull test: the fixture vertical into the box, with a certain speed vertical pull up to test the gap between the box and the binding strength.7. on the vertical tensile test: pull the head to the top (at this time the zipper should be engaged), the pull film fixed in the fixture to pull up. MeasurementTry to stop the strength of the block.8. Pull the head of the comprehensive strength test: the fixture were the first body and pull the vertical fixed, and then afterburner pull until the head and the cap was pulled off only. Test the resistance strength of the cap.


 Luggage zipper tester test zipper in the horizontal and vertical tension under the action, can withstand the required number of reciprocating pull operation, zipper reciprocating fatigue testing machine test machine to drive the zipper with constant speed pull, do 30 times per minute reciprocating Movement, until the specified number of times.Operating procedures1, according to the provisions of the test set the number of tests.2, press the START key, set the number of times after the machine automatically shut down, remove the sample, turn off the power.
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