Processing device of waterproof slide fastener

Abstract

The invention relates to a production and processing device of a waterproof zipper. The invention solves the problem that a gap is generated between a right waterproof glue layer and a left waterproofglue layer of the zipper when processing waterproof zippers in the prior art. The invention adds an opposite slant hole and a blowing pipe to a pressing board structure of a sewing machine in the prior art; according to aerodynamic principle, the cloth ribbons pasted with waterproof glue layer are pushed to middle by the constant air blowed out from the additionally equipped blowing pipe, thus ensuring that the gap between the waterproof glue layer cloth ribbons at the right half side and the left half side of the zipper is close after sewing; at the same time, a spotted fence on the back ofan upper pressing board can avoid overlapping sewing caused by excessive squeeze when the cloth ribbons are pushed to the middle by wind blowing. The invention can guarantee the smooth sewing of the waterproof zipper cloth ribbons pasted with waterproof glue layers and compact sewing gap after sewing, thereby resulting in excellent waterproof performance of the product.

Description

technical field [0001] The invention relates to a production and processing device for a waterproof slide fastener. Background technique [0002] In the early days, nylon waterproof zippers were usually padded with a waterproof agent in the post-dyeing treatment stage to form a waterproof film on the surface of the zipper to achieve a simple waterproof effect; however, the waterproof film formed by the padding treatment has poor adhesion to the zipper , During the use of the zipper, the waterproof membrane is prone to cracks or cracks, so the waterproof performance of this waterproof zipper only has a short-term effect. [0003] The relatively new type of waterproof zipper in the prior art is completed by stitching the teeth of the nylon zipper chain and the cloth tape. After dyeing, a layer of waterproof adhesive layer is pasted on the back of the cloth tape of the complete and continuous zipper chain by hot-melting, which plays a better role. Good waterproof effect, can b...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a waterproof zipper processing device, which solves the problem in the prior art that there is a gap between the left and right waterproof adhesive layers on both sides of the zipper when the waterproof zipper is processed according to the sewing method of the ordinary zipper instead of the reverse zipper

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