Manufacturing method of sprockets of alloy zipper

Abstract

The invention provides a manufacturing method of the sprockets of an alloy zipper, in particular to a manufacturing method of the sprockets of an alloy zipper, which forms the sprockets by a pouring mode, fixes the sprockets on a fabric tape of the zipper and then plates the sprockets. The invention can ensure the problem of the rate of finished products with a certain height. The manufacturing method comprises the following steps of: weaving the fabric tape of the zipper and a static wire; pouring the sprockets; separating the sprockets from a sprue and a pouring gate; and electroplating thesprockets. The invention has the following advantages that: (1) because of adopting a pouring die for forming, the surfaces of the sprockets formed in the pouring die are also smooth and round; (2) when the sprockets are formed, the sprockets are fixedly connected with the fabric tape of the zipper into a whole, the combination is firm and reliable, and the condition that the phenomenon of sprocket fall can not occur is ensured; (3) the rate of finished products is ensured; (4) the accurate positioning of the sprockets and the static wire is ensured, the stability of the point connection between tens of respectively independent sprockets during electroplating is ensured, the success rate of electroplating is ensured, and the fraction defective of the electroplating is greatly lowered; and(5) the appearance is bright, attractive and smooth, the smoothness during pull and combination is increased, and the service life of the alloy zipper is prolonged.

Description

technical field [0001] The invention relates to a method for manufacturing an alloy zipper used in civil or industrial applications, and in particular discloses a method for manufacturing an alloy zipper element. Background technique [0002] The use of zippers has been very extensive. The traditional manufacturing process of alloy zippers is to pass copper strips or other alloy strips through a special machine through a stamping process to form and press and fix the sprockets on the zipper webbing. The chain teeth of the zipper webbing have the following defects: 1) Because the surface is rough and thorny, it is easy to scratch the user. It must be polished by a grinder before it can be used safely. Sometimes the pitch is uneven and the smoothness of pulling and closing is poor; 2) The chain teeth and The chain cloth strips are fixed by crimping, and the degree of firmness is not high. When the chain head is pulled hard or when washing, some chain teeth are prone to fall of...

AI Technical Summary

Problems solved by technology

[0002] The use of zippers has been very extensive. The traditional manufacturing process of alloy zippers is to pass copper strips or other alloy strips through a special machine through a stamping process to form and press and fix the sprockets on the zipper webbing. The chain teeth of the zipper webbing have the following defects: 1) Because the surface is rough and thorny, it is easy to scratch the user. It must be polished by a grinder before it can be used safely. Sometimes the pitch is uneven and the smoothness of pulling and closing is poor; 2) The chain teeth and The chain cloth strips are fixed by crimping, and the degree of firmness is not high. When the chain head is pulled hard or when washing, some chain teeth are prone to fall off, which will lead to the scrapping of the entire zipper and even the entire used object, causing waste and troubles; 3) The formed sprocket needs to be polished. Although the polished sprocket has a bright surface, it will inevitably oxidize with the passage of time, resulting in a dull surface color and affecting the appearance

It can be seen that this patent uses a series of complex chemical treatment methods to improve the durability of the surface of the zipper component. Compared with the electroplating process, the manufacturing process is complicated and the cost is high, and the effect achieved is not ideal.