Silica gel sealing process of waterproof chain

Abstract

The invention relates to the technical field of chains, in particular to a silica gel sealing process of a waterproof chain. According to the invention, zipper teeth comprise tooth roots and tooth heads; the tooth heads are meshed with each other; empty grooves between the tooth roots are filled with first resin bodies; and second resin bodies are compounded on the upper surfaces and the lower surfaces of the tooth roots and the first resin bodies. The injection molding sealing process comprises the step of carrying out injection molding on a zipper tape by taking silica gel as injection molding resin. Through the injection molding process, the non-meshing parts of the zipper teeth, namely the empty grooves between the tooth roots, are filled with the resin bodies, so the effect of water seepage prevention is achieved; and meanwhile, in order to improve the embedding stability of the resin bodies and further improve waterproofness, the upper surfaces and the lower surfaces of the tooth roots are integrally filled with the resin bodies through the injection molding process, so the complete and continuous silica gel completely covering the tooth roots is formed; and therefore, the tooth roots can be used as positioning columns to fix the position of the silica gel, the silica gel is not easy to dislocate or fall off, structural stability is improved, and waterproof performance is also improved.

Description

technical field [0001] The invention relates to the technical field of chains, in particular to a silica gel sealing process for waterproof chains. Background technique [0002] A zipper is a connecting piece that relies on continuously arranged chain elements to merge or separate items. It is now widely used in clothing, bags, tents, etc. Due to the intermeshed nature of the chain elements, even when the zipper is in a closed state, there will be large gaps between the chain elements, so the waterproof effect cannot be achieved. The current waterproof structure used for zippers is generally simply to make a cloth tape on the back of the chain teeth. Although it can prevent water seepage to a certain extent, the water that penetrates is only absorbed by the cloth tape in essence, and the effect of preventing seepage is not achieved. The cloth strips on the back are also easy to get stuck on the chain teeth, and the user experience is not high. Contents of the invention ...

AI Technical Summary

Problems solved by technology

Due to the nature of the meshing elements, even when the zipper is closed, there will be a large gap between the elements, so it cannot achieve the effect of waterproofing

The current waterproof structure used for zippers is generally simply to make a cloth tape on the back of the chain teeth. Although it can prevent water seepage to a certain extent, the water that penetrates is essentially absorbed by the cloth tape and does not achieve the anti-seepage effect. The cloth strips on the back are also easy to get stuck on the chain teeth, and the user experience is not high

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