Introduction to zipper tester: To test whether various zippers can withstand the specified number of reciprocating pull operations under the action of horizontal and vertical tension, drive the slider of the zipper at a constant speed, and perform reciprocating movements 30 times per minute until the specified number of times , Check the condition of the test sample and judge the product performance.

[zipper tester correction method]

1. Spring balance calibration method:

1.1 Remove the spring balance from the testing machine.

1.2 Use the standard weight to verify the difference between the weight of the spring balance and the weight of the standard weight, and calculate the error.

2. Speed correction method:

2.1 Start the POWER button on the control panel and turn on the power

2.2 Press the start button to start the machine, and let the electronic stopwatch start timing at the same time.

2.3 When the electronic stopwatch reaches 1 minute to stop timing, press STOP at the same time to stop the machine, observe the difference between 1 minute and the standard speed, and calculate the error.

【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.

9. According to the type of zipper, adjust the upper and lower nuts of the horizontal spring scale to apply the appropriate lateral load of the zipper tape: as shown in Table 1:

10. Start the "Test" button to start the test.

11. Set the number of tests according to the test regulations.

12. After reaching the set number of times, the machine will automatically stop, remove the sample, and turn off the power.

13. Remove the sample and check its damage degree.