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Method for producing slide fastener tooth

A manufacturing method and chain element technology, which is applied to clothing, fasteners, fastener components, etc., can solve the problems of zipper flat pull strength and single tooth displacement force difference, chain tooth joint knife marks, and high precision requirements for raw materials, so as to achieve single The effect of high displacement force resistance, cost reduction and high flat tensile strength

Inactive Publication Date: 2007-06-13
朱国光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing Y-shaped teeth adopt profiles with complex cross-sections, which require high precision of raw materials and high manufacturing costs; while ordinary-shaped teeth are low in cost, but the zipper made of them is poor in flat tensile strength and single-element displacement force, and the chain There are knife marks on the exposed surface of the tooth

Method used

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  • Method for producing slide fastener tooth
  • Method for producing slide fastener tooth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] As shown in Fig. 2, Fig. 4, Fig. 5 and Fig. 6, a Y-shaped tooth is produced by using a copper material with a rectangular cross section, and the manufacturing steps of processing the flat wire into a Y-shaped zipper element through a continuous stepping die are as follows:

[0034] (1) At the first station, the side of the flat wire 1 of a processing unit is trimmed, and the outer line shape of the Y-shaped zipper element is symmetrically cut out. The first half is inverted trapezoidal, and the second half is square. ; A neck 6 is formed between the processing unit and the next processing unit, and the joint between the neck 6 and the rear half is an arc-shaped rear end surface;

[0035] (2) In the second station, an initial punching groove 11 is formed by the initial punching point upper die 7 along the rear end surface;

[0036] (3) In the third station, the hemispherical convex platform 2 is formed on the rear half of the above-mentioned processing unit by punching t...

Embodiment 2

[0041] As shown in Figure 3, the Y-shaped tooth is produced by using a rectangular copper-zinc alloy with a rectangular cross section. The manufacturing steps of the metal zipper element are:

[0042] (1) At the first station, a preliminary punching groove 11 is formed along the rear end surface of the flat wire 1 of a processing unit;

[0043] (2) At the second station, punch the rear half of the above-mentioned processing unit to form a hemispherical boss 2;

[0044] (3) At the third station, the side of the above processing unit is trimmed, and the outer line of the Y-shaped zipper element is symmetrically cut out. The first half is inverted trapezoidal, and the second half is square; the processing unit A neck 6 is formed between the next processing unit, and the joint between the neck 6 and the rear half is a circular arc-shaped rear end surface;

[0045] (4) At the fourth station, the front half of the above-mentioned processing unit is centered to form a pair of teeth ...

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Abstract

The process of machining flat wire into Y-shaped slide fastener tooth in continuous stepped molds includes the following steps: cutting side of one machined unit of flat wire to form Y shape and cutting edge between the machined unit and the next machined unit to form a neck in the first site; initially punching the back end of the machined unit to form one initial slot in the second site; spot punching the back part of the machined unit to form semi-spherical boss in the third site; cutting the middle part of the machined unit to form one pair of Y-shaped teeth in the fourth site; and pressing the tooth into slide fastener cloth belt with pressing hammer and cutting along arced back end in the fifth site. The said process has low production cost, and machined Y-shaped tooth has good look.

Description

technical field [0001] The invention relates to a method for making a zipper, in particular to a method for making a zipper element. Background technique [0002] There are two types of zipper teeth: Y-shaped teeth and ordinary teeth. The existing Y-shaped teeth must use Y-shaped special-shaped wires in cross-section, which are sliced ​​and punched into the zipper tape through the YG-type tooth implant machine; this kind of chain teeth has no knife marks, and the head can be processed into a semi-spherical shape; The joint with the cloth belt can be designed into a reasonable shape (for example, a positioning pin is arranged) to improve the flat tensile strength and the displacement force of a single tooth. However, the shape of the Y-shaped special-shaped wire is complicated, the precision is high, and it is difficult to manufacture. In my country, it is basically Relying on imports, the cost is extremely high, and the mechanism of the YG-type dental implant machine is compl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D53/52B21F45/18
Inventor 朱国光黄国亮
Owner 朱国光