5 nylon zipper technical indicators

Nylon zipper is a kind of hardware accessories commonly used in the modern clothing industry, luggage industry and some craft gift packaging industries. Although the small zipper is not very eye-catching, its function is much larger than its size. Small zippers also have certain production technical requirements. What are the commonly used production technologies for 5# nylon zippers?

5# nylon zipper technology requirements are:

1. Pull head height: 2.9-3.0 Port width: 6.5-6.6 Combination width: 6.45±0.05 Single width: 4.15±0.05 Thickness: 2.70±0.05.

2, ordinary open tail: fixed inch selection of teeth should be adjusted according to different code at any time (due to the change of the tooth distance), to ensure that the right insert left high right low, left insert opposite, super sound half grain microphone to the root, the position of the tape Flush, ensure that the pinhole of the pin block is punched to the end, and the length of the punched cloth is about 9.5mm. Ensure that the pin block is attached to the root, the pin is punched in the needle, and the side of the block is clamped, and the punch is in the middle. penetrate.

3, factors that are prone to defective products: because the opening of the cloth feet is too short or too long, respectively, resulting in insufficient strength, the plug block can not be rooted, resulting in a square head æ­ª, not well matched, the strength does not reach the standard value, the reason is The hole is too biased to the outer side of the belt, and the punching is too deep to cause the belt to break.

4, injection molding open: fixed inch, super sound the same as above, open need to change the open mold, (Note: when changing the mold, pay attention to the starting position, because the mold stroke is not the same, otherwise easy to damage the mold), the specific adjustment can be used to put a piece of paper Into the mold, the hand wheel with the wheel, the paper just cut down is appropriate, the punching foot length is 9.5mm, the pressure square pin please refer to the 3# nylon open tail press.

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