【Operation process of zipper reciprocating testing machine】
1. Sample device:

2. After power on, activate the "test" button, so that the zipper clamping device is located at the bottom position of the chute (convenient for clamping the sample).

3. (Turn off the power), fix the zipper zipper on the zipper clamping device.

4. Roughly fix the end of the zipper (bottom stop) in the upper chuck (at this time, the center line of the chuck is perpendicular to the center of the zipper).

5. Fix the front end (top end) of the zipper on the two longitudinal chucks.

6. Slightly loosen the upper chuck, pull up the tail end of the zipper so that the rotating plate is horizontal, and then clamp the upper chuck (at this time, the two longitudinal chucks are on the same horizontal line visually)

7. Adjust the upper and lower nuts of the spring scale according to the type of zipper, and apply the appropriate longitudinal load of the zipper tape (as specified in the table)

8. Loosen the two horizontal chucks, put the cloth tapes on both sides of the zipper into the two clamps for clamping (at this time, the two horizontal chucks are parallel to the zipper and on the same horizontal line), and the distance between the chucks and the two sides of the chain teeth There should be a 5.0mm clearance.


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