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Method for producing slide fastener tooth

A manufacturing method and chain element technology, which can be applied in the direction of clothing, fasteners, fastener components, etc., can solve the problems of zipper flat tensile strength and single tooth displacement force difference, chain tooth joint knife marks, high precision requirements of raw materials, etc., to achieve Single tooth has high anti-displacement force, reduced cost, 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-tooth displacement force, and There are 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

Examples

Experimental program
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Effect test

Embodiment 1

[0028] As shown in Figure 2 and Figure 4, a Y-shaped tooth is produced by using a copper material with a rectangular cross section. The manufacturing steps of the metal zipper element are as follows:

[0029] (1) At the first station, cut and wrap the side of the flat wire 1 of a processing unit, symmetrically cut out the outer line shape of the Y-shaped zipper element, and cut and wrap the front and rear ends at one time Forming, the front half is an inverted trapezoid, and the rear half is square; a neck 6 is formed between this processing unit and the next processing unit, and the front end surface and the rear end surface are arc-shaped; like this, the surface of the tooth waist part has no Pick up the knife marks.

[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...

Embodiment 2

[0034] 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:

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

[0036] (2) At the second station, the side of the above-mentioned processing unit is cut and wrapped, and the outer line shape of the Y-shaped zipper element is symmetrically cut out. The front and rear ends are cut and wrapped at one time. The upper part is an inverted trapezoid, and the second half is square; a neck 6 is formed between this processing unit and the next processing unit, and the front end surface and the rear end surface are arc-shaped;

[0...

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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 and folding 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