CN1301160C

CN1301160C - Method for producing slide fastener tooth

Info

Publication number: CN1301160C
Application number: CNB2004100778512A
Authority: CN
Inventors: 朱国光; 黄国亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-15
Filing date: 2004-09-15
Publication date: 2007-02-21
Anticipated expiration: 2024-09-15
Also published as: CN1748893A

Abstract

The present invention relates to a method for producing zipper teeth. Flat wire material is processed to Y-shaped zipper teeth by a continuous progressive die. The present invention comprises the following steps that the side edge of the flat wire material of a processing unit is processed by cutting edges at a first station; the external line type of the Y-shaped zipper teeth is cut symmetrically; the front half parts of the Y-shaped zipper teeth are in a reverse trapezoid, and the back half parts are in a square; a neck part is formed between the processing unit and a next processing unit by cutting edges, and the joints of the neck part and the back half parts form a circular arc-shaped back end surface; a hemisphere surface dummy club is formed by punching point the back half part of the processing unit at a second station; the teeth parts of a pair of Y-shaped zipper teeth are formed by the center cutting processing of the front half part of the processing unit at a third station; tooth germs of the Y-shaped zipper teeth can be tonged into a zipper cloth belt by a shingling hammer at a fourth station, and cut along the circular arc-shaped back end surface. The method largely reduces the production cost, and the produced Y-shaped zipper teeth have high anti-flat tension strength and anti-single tooth displacement force.

Description

A kind of preparation method of slide fastener coupling element

Technical field

The present invention relates to zipper production method, particularly a kind of preparation method of slide fastener coupling element.

Background technology

Slide fastener coupling element has two kinds of Y type tooth and plain edition teeth.Existing Y type tooth must adopt the cross section to be Y type shaped wire, sandwiches zipper cloth belt via YG type tooth planter through cutting into slices, dash point; This chain tooth does not have the tool marks of connecing, and it is spherical that head can be processed into semicircle, so that the chain bending is soft, engagement is gently sliding; Itself and strap junction surface can be designed to Reasonable Shape, (such as, arrange a pilot pin), to improve flatwise tensile strength and single tooth displacement force, but Y type shaped wire is complex-shaped, and the required precision height is difficult to make, substantially lean on import in China, cost is high, and, YG type tooth planter mechanism complexity.

The flat wire rod that the plain edition tooth adopts the cross section to be rectangle, planting the tooth machined via metal, to make slide fastener monolateral.Existing plain edition tooth, the cost of raw material is significantly less than Y type shaped wire, metal is planted the simple in structure of tooth machine, but because the restriction of processing technology, the processing and the cutting direction of two sections stations are opposite, so, the surface of tooth waist portions is left and is significantly connect tool marks, can't eliminate in subsequent handling, can't overcome at present; The boss surface of chain tooth head is smooth inadequately; And itself and strap junction surface are subjected to the restriction of nose shape, can't form pilot pin.

Various countries generally adopt the preparation method of metallic bond tooth and the operation principle basically identical that the different metal of profile is planted the tooth machine thereof, all flat copper or aluminium alloy flat wire rod being planted the tooth machined via metal, to make slide fastener monolateral, as shown in Figure 1, by the patrix machine and the counterdie machine of continuous stepping mould, flat wire rod 1 is carried out towards point → cut triangle → crop → tooth bud to clamp into zipper cloth belt; Zipper cloth belt moves along the vertical direction that tooth bud advances.

Existing Y type tooth adopts the section bar of cross section complexity, the required precision height of raw material, manufacturing cost height; Though and plain edition tooth cost is low, the slide fastener anti-pulliing strength that it is made and single tooth resist displacement power aspect are relatively poor, and chain tooth exposed face has and significantly connects tool marks.

The metal zip fastener of producing Y type tooth effect for the rectangle flat bar with the cross section is key subjects of the industry always, and the various countries technical staff has studied about 20 years for this reason.

Summary of the invention

The object of the present invention is to provide a kind of cross section of adopting to produce the preparation method of the metal slide fastener tooth of Y type tooth effect, go out Y type tooth with low-cost production for the rectangle flat bar.

The preparation method of a kind of slide fastener coupling element that technical scheme of the present invention provides is processed into Y type slide fastener coupling element by continuous stepping mould with flat wire rod, and its step comprises:

(1) at first station, the side of the flat wire rod of a machining cell to be done to cut edge handle, symmetry cuts out the outside line style of Y type slide fastener coupling element, and it is trapezoidal that first half is, latter half of being square; Form a neck between this machining cell and the next machining cell, described neck and latter half of junction are the rear end face of circular arc;

(2) at second station, to the latter half of some formation hemisphere face boss that dashes of above-mentioned machining cell;

(3),, form the tooth portion of a pair of Y type chain tooth to the processing of hitting of the first half of above-mentioned machining cell at the 3rd station;

(4), clamp into zipper cloth belt by the tooth bud of shingling hammer, and cut off along the rear end face of circular arc with Y type slide fastener coupling element at the 4th station.

As a kind of improvement of the inventive method, the processing of hitting of described step (3) also forms a pair of pilot pin in a pair of tooth portion inboard of Y type chain tooth.

As another improvement of the inventive method, described step (2) is carried out before in step (1).

As improving again of the inventive method, the described point that dashes adopts upper cavity die and lower punch processing, and there is a projection on the base of described upper cavity die, and this projection is aimed at rear end face; So that the shape of the head boss that stamps out is more natural, attractive in appearance.

Advantage of the present invention is: the inventive method can adopt flat bar to produce the metal slide fastener tooth of Y type tooth effect, and the employing cross section is that ormolu, the aluminium alloy of rectangle is raw material, and cost reduces greatly; And Y type tooth anti-pulliing strength height, the anti-single-tooth-displacement strength height produced have alleviated to a certain extent and have connect tool marks.

Description of drawings

The method schematic diagram of Fig. 1 flat wire rod making slide fastener coupling element for prior art adopts;

Fig. 2 is the preparation method schematic diagram of slide fastener coupling element of the present invention;

Fig. 3 is the another preparation method schematic diagram of slide fastener coupling element of the present invention;

Fig. 4 dashes the cutaway view of some station for the present invention.

The drawing explanation

1, flat wire rod 2, hemisphere face boss 3, tooth portion

4, pilot pin 5, shingling hammer 6, neck

7, projection 8, dash a some upper cavity die 9, dash a some lower punch push rod

10, dash the some punch

The specific embodiment

Below just specify technical scheme in conjunction with the accompanying drawings according to the inventive method:

Embodiment 1

As shown in Figure 2, adopting the cross section is that rectangular copper material is produced Y type tooth, and this metal slide fastener tooth making step is:

(1) at first station, the side of the flat wire rod 1 of a machining cell to be done to cut edge handle, symmetry cuts out the outside line style of Y type slide fastener coupling element, and it is trapezoidal that first half is, latter half of being square; Form a neck 6 between this machining cell and the next machining cell, described neck 6 and latter half of junction are the rear end face of circular arc;

(2) at second station, lead to overshoot point upper cavity die 8 and dash the latter half of of 10 pairs of above-mentioned machining cells of some punch towards a some formation hemisphere face boss 2, dash some punch 10 by controlling towards some lower punch push rod 9;

(3) at the 3rd station, to the processing of hitting of the first half of above-mentioned machining cell, form the tooth portion 3 of a pair of Y type chain tooth, a pair of tooth portion inboard also forms a pair of pilot pin 4;

(4), clamp into zipper cloth belt by the tooth bud of shingling hammer 5, and cut off along the rear end face of circular arc with Y type slide fastener coupling element at the 4th station.

Embodiment 2

As shown in Figure 3 and Figure 4, adopting the cross section is the ormolu production Y type tooth of rectangular rectangle, and this metal slide fastener tooth making step is:

(1), the latter half of point that dashes of the flat wire rod 1 of a machining cell is formed a hemisphere face boss 2 at first station; The described point that dashes adopts upper cavity die 8 and lower punch 10 processing, and there is a projection 7 on the base of described upper cavity die 8, and this projection 7 is aimed at the rear end face of machining cell; So that the shape of the head boss that stamps out is more natural, attractive in appearance.

(2) at second station, the side of above-mentioned machining cell is done the processing of cutting edge, symmetry cuts out the outside line style of Y type slide fastener coupling element, and it is trapezoidal that first half is, latter half of being square; Form a neck 6 between this machining cell and the next machining cell, described neck 6 and latter half of junction are the rear end face of circular arc;

The inventive method can adopt flat bar to produce the metal slide fastener tooth of Y type tooth effect, and adopting the cross section is the raw material of rectangle, and cost reduces greatly; And, the Y type tooth flatwise tensile strength height of producing, single tooth displacement force height, simultaneously, side to connect tool marks very light.

Claims

1, a kind of preparation method of slide fastener coupling element is processed into Y type slide fastener coupling element by continuous stepping mould with flat wire rod (1), and its step comprises:

At first station, the side of the flat wire rod of a machining cell to be done to cut edge handle, symmetry cuts out the outside line style of Y type slide fastener coupling element, and its first half is trapezoidal, latter half of being square; Cut edge between this machining cell and the next machining cell and form a neck (6), described neck and latter half of junction are the rear end face of circular arc;

At second station, to the latter half of some formation hemisphere face boss (2) that dashes of above-mentioned machining cell;

At the 3rd station,, form the tooth portion (3) of a pair of Y type chain tooth to the processing of hitting of the first half of above-mentioned machining cell; With

At the 4th station, clamp into zipper cloth belt by the tooth bud of shingling hammer (5), and cut off along the rear end face of circular arc with Y type slide fastener coupling element.

According to the preparation method of the described slide fastener coupling element of claim 1, it is characterized in that 2, the described processing of hitting also forms a pair of pilot pin (4) in a pair of tooth portion (3) inboard of Y type chain tooth.

According to the preparation method of claim 1 or 2 described slide fastener coupling elements, it is characterized in that 3, dashing o'clock before the side cut of first station is handled of described second station carried out.

According to the preparation method of claim 1 or 2 described slide fastener coupling elements, it is characterized in that 4, the described point that dashes adopts upper cavity die (8) and lower punch (10) processing, there is a projection (7) on the base of described upper cavity die (8), and this projection (7) is aimed at rear end face.