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Method for producing slide fastener tooth

A production method and technology of chain teeth, which are applied in the direction of clothing, fasteners, fastener components, etc., can solve the problems of poor flat tensile strength and single tooth displacement resistance of zippers, high raw material precision requirements, and high manufacturing costs. High single tooth displacement force, high flat tensile strength, and the effect of reducing knife marks

Inactive Publication Date: 2007-02-21
朱国光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The 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-tooth displacement resistance. And there are obvious knife marks on the exposed surface of the chain teeth

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like figure 2 As shown, Y-shaped teeth are produced by using copper with a rectangular cross section. The manufacturing steps of the metal zipper elements are as follows:

[0029] (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;

[0030] (2) In the second station, the hemispherical convex platform 2 is formed on the punching point of the second half of the above-mentioned processing unit through the punching point upper die 8 and the punching point punch 10, and the punching point punch 10 is convex from the punching point Die ejector rod 9 control;

[0031] (3) At the third station, the front half of the processing u...

Embodiment 2

[0034] like image 3 and Figure 4 As shown, a rectangular copper-zinc alloy with a rectangular cross-section is used to produce Y-shaped teeth. The manufacturing steps of the metal zipper elements are:

[0035] (1) At the first station, a hemispherical boss 2 is formed on the rear half of the flat wire 1 of a processing unit; the punching point is processed by an upper die 8 and a lower punch 10, and the upper There is a protrusion 7 on the bottom of the die 8, and the protrusion 7 is aligned with the rear end face of the processing unit; so that the shape of the stamped head boss is more natural and attractive.

[0036] (2) At the second station, the side of the above processing unit is trimmed, and the outer line shape of the Y-shaped zipper element is symmetrically cut out, the front 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 ...

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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; spot punching the back part of the machined unit to form semi-spherical boss in the second site; cutting the middle part of the machined unit to form one pair of Y-shaped teeth in the third site; and pressing the tooth into slide fastener cloth belt with pressing hammer and cutting along arced back end in the fourth site. The said process has low production cost, and machined Y-shaped tooth has high level drawing resisting strength and great shift resisting force.

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. Make the chain bend soft and engage lightly; its joint with the cloth belt can be designed into a reasonable shape (for example, arrange a positioning pin) to improve the flat tensile strength and single-tooth displacement force, but the shape of the Y-shaped special-shaped wire is complex, It requires high precision and is difficult to manufacture. In my country, it basically relies on imports, and the cost is extremely high. Moreover, the YG-type tooth implant mach...

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