CN101147946B - Technology for manufacturing three-point maize tooth metal zip fastener and mould - Google Patents
Technology for manufacturing three-point maize tooth metal zip fastener and mould Download PDFInfo
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- CN101147946B CN101147946B CN2006101222349A CN200610122234A CN101147946B CN 101147946 B CN101147946 B CN 101147946B CN 2006101222349 A CN2006101222349 A CN 2006101222349A CN 200610122234 A CN200610122234 A CN 200610122234A CN 101147946 B CN101147946 B CN 101147946B
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Abstract
The present invention relates to the field of zipper technology, in particular, it relates to a manufacture process of three-point grain metal zipper and its forming die. It is characterized by that said invention adopts a step-by-step type die-arranging mode, utilizes one machine to implement positioning directional blanking and stepped processing of metal flat wire and obtain specific form, and utilizes the change of thickness of metal copper or aluminium wire and correspondent tooth profile height to manufacture light-load, middle-load and heavy load zippers. Besides, said invention can utilize the change of form of metal copper wire or aluminium wire to make the original rectangular tooth be changed into the trapezoidal tooth, and can manufacture single-tooth structure having reinforced dovetail or having no dovetail according to the requirement and application.
Description
Technical field:
The present invention relates to the slide fastener technical field, refering in particular to the present invention is a kind of manufacturing process and mould thereof of three-point maize metal zip fastener.
Background technology:
Slide fastener has become one of indispensable daily necessities in people's life in current society, and slide fastener is classified according to material, mainly comprises: metal zip fastener, nylon zipper and delrin zippers with pulllers; Distinguish according to purposes, mainly comprise: clothes, case and bag, shoes and hats, toy, industry, medical treatment, or the like.Distinguish according to instructions for use, mainly comprise: unidirectional slide fastener and bi-directional zip; Distinguish mainly according to function and to comprise: common, stealthy, waterproof, fire-retardant, or the like.Metal zip fastener is the founder of all slide fasteners, because its characteristic event sturdy and durable and stable chemical performance does not also have other products to replace at present.
But the structure of metal zip fastener exists unicity always, and P type the earliest is shown in Figure 1, prolongs always and has used nearly 100 year time, still continues a large amount of uses up to today.This kind P type slide fastener is present the most frequently used metal zip fastener, and it comprises a salient point 11, respective slot 12, sprocket tooth body 13, and this kind slide fastener finished product and the theory of engagement are seen shown in Figure 2.Also have a kind of T type slide fastener at present, shown in Figure 3, its monodentate symmetrical structure has comprised 21,2 grooves 22 of 2 salient points and chain toothed chain body 23, and its finished product and the theory of engagement are seen shown in Figure 4.And any metal zip fastener that can really satisfy instructions for use, the most basic forces testing that must satisfy and index have six to comprise: longitudinal pulling force, lateral pull, horizontal pull, bending intensity, monodentate displacement intensity and drawing smooth degree, these indexs have all had national standard and international standard at present, therefore one that needs only wherein under six basic requirements can not be satisfied forces testing, the slide fastener that just can assert this kind structure exists defective and structural instability, just can not carry out large-scale production and popularization.
Above-mentioned P type slide fastener is present the most frequently used metal zip fastener, has satisfied above-mentioned structural stability requirement fully, still, this kind slide fastener major part can only unidirectionally be used, and can not two-way drawing, and outward appearance is common, to lacking novelty the today of making rapid progress, there is not the market competitiveness; For above-mentioned T type slide fastener, its scope is also more and more wider, has also satisfied above-mentioned structural stability requirement fully, and this kind slide fastener can two-way drawing, and the good looking appearance exquisiteness, and the cosmetic decoration effect is arranged.But this kind zipper fabrication cost is higher, complex procedures, core technology is monopolized by overseas enterprise, and the percent defective of domestic traditional bi-directional zip is high, very easily quick-fried tooth, and quality stability is difficult to control, domesticly all can't go beyond all the time, and present production technology is respectively the metal lenticular wire to be carried out directed stamping-out and assembling by several lathes, and substep is machined to given shape, and equipment needed thereby is many, complex process, the production cost height.In view of this, at more single on the market slide fastener kind and the domestic passive situation innovating and change of failing for a long time, the applicant sums up the experience of being engaged in zipper fabrication and sale for a long time, organize manpower, material resources and financial resources to carry out a series ofly in a planned way developing and exploring, through long term studies and improvement, develop a kind of three-point maize metal zip fastener, zipper sprocket 20 is seen shown in Fig. 5～10, this kind slide fastener comprehensive strength height, can mesh fast and separate, dependable performance, long service life satisfies above-mentioned structural stability requirement, can two-way drawing, applied range, and manufacture non-explosive tooth easily, constant product quality, production cost is low, and the market competitiveness is big, has filled up domestic vacancy.
Summary of the invention:
The objective of the invention is to disclose a kind of above-mentioned manufacturing process and mould thereof made from three-point maize tooth metal slide fastener of special construction, technology of the present invention is simple, the slide fastener constant product quality of producing, production cost is low, and utilize various single shaft punch press formula main frames at present with automatic feeding function, cooperate mould of the present invention, relevant eccentric wheel parameter, stroke, speed ratio, the guide groove of adjusting machine can put into production and use.
For achieving the above object, the present invention is achieved by the following technical solutions: it may further comprise the steps:
A, feeding are sent into metal wire rod in the Stamping Area of five metals shear extrusion mould by the feed mechanism of punch press formula main frame;
B, side cut, the cutter of the both sides of metal wire rod on five metals shear extrusion mould first station excises out two side waste materials between the sprocket;
C, tentatively do a little, metal wire rod is tentatively done a cutter extrusion modling on five metals shear extrusion mould second station, all molds the general shape of the salient point and the groove of a sprocket at the upper and lower surface of metal wire rod, forms a sprocket embryo tooth;
D, precision are done a little, are installed on precision on the 3rd station of five metals shear extrusion mould and make a cutter salient point and the groove that tentatively molds on the sprocket embryo tooth carried out precise forming;
E, repair burr, sprocket embryo tooth is the edge iron deburring on the 4th station of five metals shear extrusion mould again;
F, cutting are cut off, and the gear cutter on five metals shear extrusion mould the 5th station cuts off the sprocket embryo tooth that moulding finishes;
G, in the cut while of sprocket embryo tooth, the clamping mold on the positioning clamping device is clamped to sprocket embryo tooth on the strap one by one;
H, along with patrix rises, clamping mold unclamps sprocket embryo tooth;
The drawstring device of I, punch press formula main frame, the strap that will plant sprocket is pulled upwardly a full-height tooth distance;
J, repeat above step and make the thick embryo finished product of single-edge zipper.
Described five metals shear extrusion mould comprises edge-trimming cutter, tentatively make a cutter, precision is made a cutter, edge iron, gear cutter, on first station of five metals shear extrusion mould upper and lower mould edge-trimming cutter is installed all, the side waste material shape of being excised out on the edge of a knife shape of edge-trimming cutter and the metal wire rod is identical, all be equipped with on second station of five metals shear extrusion mould upper and lower mould and tentatively make a cutter, tentatively make a cutter and be one and can stamp out the stamping die of salient point and groove general shape, on the 3rd station of five metals shear extrusion mould upper and lower mould precision is installed all and makees a cutter, it is one can stamp out the stamping die of salient point and groove shapes that precision is made a cutter, on the 4th station of five metals shear extrusion mould upper and lower mould knife tool is installed all, knife tool is one can wash away the punching press shearing die of sprocket sharp edge and unnecessary rim charge, the locating clip clamper that gear cutter is installed on the 5th station of five metals shear extrusion lower mould and sprocket is clamped.
The tooth bar jig structure that is used to locate metal wire rod also is installed on described the 4th station, and tooth bar jig structure is to be located at three protrusion pieces of counterdie edge iron end face.
On described the 4th station tooth bar stripper is installed also, the tooth bar stripper is a backgauge protecting cover that is installed on counterdie, offers the hole of passing for gear cutter on this backgauge protecting cover.
Described locating clip clamper is to be installed on counterdie and driven by plate on the mould and the two clamping plates that can clamp, and has the space of a ccontaining sprocket between two clamping plate, and back-moving spring also is installed on the described clamping plate.
On described first station and the 4th station bidirectional discharge device is installed, the bidirectional discharge device is to offer gas circuit at mould inside, all offers the discharge gas port of bleeding on two blanking positions of side waste material.
From technique scheme as can be seen, the present invention adopts step-type row's mould mode, per step size is all set by the corresponding model in when design, position directed stamping-out and be machined to given shape step by step by metal lenticular wire specific standard, again by cold extrusion, and normal temperature typing in model, has the embryo tooth technology that satisfies the specific theory of engagement of slide fastener until formation, mould reciprocating action once, can produce a sprocket, be a kind ofly rapidly and efficiently to make chain technology, and tooth bar jig structure be installed on the mould metal wire rod is positioned, simultaneously, salient point and the groove that a cutter molds on the sprocket of tentatively doing on the mould also has positioning action, and the location accurately, and it is then more accurate when carrying out precise forming that precision is made a cutter, can will not occur salient point towards askew, the phenomenon that washes out, the product percent defective is extremely low, and the product comprehensive strength height of being produced, long service life, production cost is low.
And by after gear adjusting and the cutting die replacing, put on the flat type copper wire of corresponding specification and just can give birth to all size and difform slide fastener, in addition, because there is diversity in the shape and structure of monodentate, thickness by changing metallic copper or aluminum steel and corresponding flute profile height can make underloading, in carry, heavily loaded slide fastener, by changing the shape of metallic copper or aluminum steel, can be transformed into stepped tooth to original rectangle tooth, and can produce the monodentate structure of strengthening dovetail or not having dovetail with purposes as requested, applied widely; And the general various single shaft punch press formula main frames of the technology adaptive industry of energy of the present invention with automatic feeding function, only need by adjusting machine relevant eccentric wheel parameter, stroke, speed ratio, guide groove, just can put into production and use, and the positioning and directing stamping-out to the metal lenticular wire all is to finish on same lathe with being machined to given shape step by step, equipment cost is low, effectively reduce the production run cost, greatly reduce product cost.In sum, technology of the present invention is simple, and equipment needed thereby is few, and the product percent defective of being produced is extremely low, constant product quality, and the comprehensive strength height, long service life, and speed of production is fast, can realize producing in batches, and production cost is low, and the market competitiveness is strong.
Description of drawings:
Accompanying drawing 1 is the structural representation of P type sprocket;
Accompanying drawing 2 is the structural representation of the slide fastener of application P type sprocket;
Accompanying drawing 3 is the structural representation of T type sprocket;
Accompanying drawing 4 is the structural representation of the slide fastener of application T type sprocket;
Accompanying drawing 5 is the structural representation of square three-point maize tooth sprocket;
Accompanying drawing 6 is the structural representation of the slide fastener of the square three-point maize tooth sprocket of application;
Accompanying drawing 7 is the structural representation of square band dovetail three-point maize tooth sprocket;
Accompanying drawing 8 is the structural representation of the slide fastener of the square band dovetail three-point maize tooth sprocket of application;
Accompanying drawing 9 is the structural representation of trapezoidal three-point maize tooth zipper sprocket;
Accompanying drawing 10 is the structural representation of the slide fastener of the trapezoidal three-point maize tooth sprocket of application;
Accompanying drawing 11 is process flow figure of the present invention;
Accompanying drawing 12 is the structural representation of tooth bar bidirectional discharge of the present invention
Accompanying drawing 13 is the structural representation of upper mould of the present invention
Accompanying drawing 14 is the structural representation of lower mould of the present invention
Accompanying drawing 15 is the gas circuit on the mould of the present invention and the structural representation of airflow circulating system
Accompanying drawing 16 is a preliminary following and accurate following 's of the present invention structural representation
Accompanying drawing 17 is the structural representation of tooth bar jig structure of the present invention
Accompanying drawing 18 is the structural representation of locating clip clamper of the present invention
The specific embodiment:
Embodiment sees accompanying drawing 11,12, and it may further comprise the steps:
A, feeding are sent into metal wire rod in the Stamping Area of five metals shear extrusion mould by the feed mechanism of punch press formula main frame, and along with pumping of die holder, metal wire rod is intermittent movement forward, and are sent to the feeding stop position of setting;
B, side cut, the cutter of the both sides of metal wire rod on five metals shear extrusion mould first station excises out two side waste materials 16 between the sprocket, the gas circuit design of mould inside and airflow circulating system are evacuated the mould local space of side cut position, and dual-side waste material 16 is then attracted deposit after dropping from the metal wire rod both sides respectively automatically;
C, tentatively do a little, metal wire rod is tentatively done a cutter extrusion modling on five metals shear extrusion mould second station, upper and lower surface at metal wire rod all molds three salient points of a sprocket and the general shape of corresponding three grooves, forms a sprocket embryo tooth;
D, precision are done a little, along with metal wire rod travels forward, when salient point that tentatively molds on the sprocket embryo tooth and groove move to the 3rd station of five metals shear extrusion mould, be installed on precision on the 3rd station of five metals shear extrusion mould and make a cutter salient point and the groove that tentatively molds on the sprocket embryo tooth carried out precise forming;
E, repair burr, sprocket embryo tooth is the edge iron deburring on the 4th station of five metals shear extrusion mould again;
F, cutting are cut off, and the gear cutter on five metals shear extrusion mould the 5th station cuts off the sprocket embryo tooth that moulding finishes;
G, in the cut while of sprocket embryo tooth, the clamping mold on the positioning clamping device is tight with sprocket embryo toothholder;
H, clamping mold unclamp sprocket embryo tooth;
The drawstring device of I, punch press formula main frame, the strap that will plant sprocket is pulled upwardly a full-height tooth distance;
J, repeat above step and make the thick embryo finished product of single-edge zipper.
Go out the thick embryo finished product of single-edge zipper through processes of the present invention, can polish as required again, plating or painted, plate and back processing.
For further disclosing technology of the present invention, below the five metals shear extrusion mould of realizing technology of the present invention is described.
Described five metals shear extrusion mould comprise patrix front shroud 41, last gear cutter 17, following gear cutter 18, upper slitter holder 33, last edge iron 7, following edge iron 8, last edge iron backing plate 35, last some holder 36 and 39, point 5 on the precision, accurate following 6, the preliminary point 3 of going up, preliminary following 4, last edge-trimming cutter 1, following edge-trimming cutter 2, last edge-trimming cutter location-plate 31, backing plate 32 behind the patrix, die shoe 52, strap guide plate 51, cut off B mould 50, following edge iron backing plate 58, under put holder 54 and 53, counterdie backboard 55, see Figure 13, shown in 14, on first station of five metals shear extrusion mould upper and lower mould edge-trimming cutter is installed all, promptly go up edge-trimming cutter 1 and following edge-trimming cutter 2, side waste material 16 shapes of being excised out on the edge of a knife shape of edge-trimming cutter and the metal wire rod are identical, and edge-trimming cutter is used to excise metal wire rod side waste material 16 between two sprockets.
On described first station and the 4th station bidirectional discharge device is installed, the bidirectional discharge device is to offer gas circuit at mould inside, all offers the discharge gas port of bleeding on two blanking positions of side waste material 16.It is in the mould inside design gas circuit and airflow circulating system 19 to be arranged, see shown in Figure 15, gas circuit 1 and airflow circulating system 19 are evacuated the mould local space of side cut position, do directed blanking design at the cutting position, rim charge and dust that excision is come out are then attracted deposit automatically, fit clearance unblocked and sharp keen of cutter guaranteed in the attracting deposit automatically and in time the dust of cutter being cleared up of 19 pairs of rim charges of gas circuit and airflow circulating system.
All be equipped with on second station of described five metals shear extrusion mould upper and lower mould and tentatively make a cutter, tentatively make a cutter and be one and can stamp out the stamping die of salient point and groove general shape, be installed on the preliminary point 3 of going up that is of patrix, what be installed on counterdie is preliminary following 4, shown in Figure 16.
On the 3rd station of described five metals shear extrusion mould upper and lower mould precision is installed all and makees a cutter, it is one can stamp out the stamping die of sprocket salient point and the accurate shape of groove that precision is made a cutter, be installed on the accurate point 5 of going up that is of patrix, what be installed on counterdie is at accurate following 6.
On the 4th station of described five metals shear extrusion mould upper and lower mould knife tool is installed all, knife tool is one can wash away the punching press shearing die of sprocket sharp edge and unnecessary rim charge, is installed on the last edge iron 7 that is of patrix, is installed on the edge iron 8 down of being of counterdie.
The tooth bar jig structure that is used to locate metal wire rod also is installed on described the 4th station, metal wire rod is sheared through the mould punching press becomes a tooth bar, and tooth bar jig structure is to be located at three projections 15 of counterdie edge iron inboard, shown in Figure 17, projection 15 cooperates with corresponding grooves on the sprocket, to form the accurate location to tooth bar.Along with pumping of die holder, tooth bar is done intermittent movement forward according to the feeding stop position of setting on direction, and tooth bar jig structure can make the semi-finished product monodentate can rest on next station smoothly exactly to the location, and this tooth bar jig structure can guarantee the definition and the accuracy of gauge of sprocket die cavity.
On described the 4th station monodentate stripper is installed also, the monodentate stripper is a backgauge protecting cover that is installed on counterdie, offers the hole of passing for gear cutter on this backgauge protecting cover.Along with pumping of die holder, cut rim charge falls into groove, taking off when mould bases rising hour rack and stop upwards under the restriction of material parts backgauge lid and rested on predetermined aspect, forming cutter and the smooth of tooth bar and separate, the feeding of a new round begins do action again then.By constantly pushing ahead of follow-up new embryo tooth, the monodentate of moulding just is with respect to the distance of a setting of the synchronous translation forward of mould, the monodentate stripper has kept the straight and forward stable of tooth bar in tooth bar translation process, another effect of backgauge protecting cover is that the counterdie cutter is sealed, prevent gas leakage, be beneficial to the pump drainage rim charge.
The locating clip clamper that gear cutter also is installed on the 5th station of described five metals shear extrusion lower mould and sprocket is clamped.Gear cutter is used for sprocket is cut off, and is installed on the last gear cutter 17 that is of patrix, is installed on the following gear cutter 18 that is of counterdie; The locating clip clamper is to be installed on counterdie and driven by plate 9 on the mould and the two clamping plates 10 that can clamp, and is shown in Figure 180, has the space of a ccontaining sprocket between two clamping plate 10, on the described clamping plate 10 back-moving spring 14 is installed also.After first embryo tooth moulding of tooth bar, and when having arrived the station of setting, clamping mold is done under the driving of plate in the monodentate disjunction, and two-way advancing formed final program desired moment and clamped and separately action.
It only is preferred embodiment of the present invention that above institute is chatted, so all equivalences of doing according to structure, feature and the principle of described technology of the present patent application claim and mould thereof change or decorate, is included in the present patent application claim.
Claims (6)
1. the manufacturing process of a three-point maize tooth metal slide fastener, it is characterized in that: it may further comprise the steps:
A, feeding are sent into metal wire rod in the Stamping Area of five metals shear extrusion mould by the feed mechanism of punch press formula main frame;
B, side cut, the cutter of the both sides of metal wire rod on five metals shear extrusion mould first station excises out two side waste materials between the sprocket;
C, tentatively do a little, metal wire rod is tentatively done a cutter extrusion modling on five metals shear extrusion mould second station, all molds the general shape of the salient point and the groove of a sprocket at the upper and lower surface of metal wire rod, forms a sprocket embryo tooth;
D, precision are done a little, are installed on precision on the 3rd station of five metals shear extrusion mould and make a cutter salient point and the groove that tentatively molds on the sprocket embryo tooth carried out precise forming;
E, repair burr, sprocket embryo tooth is the edge iron deburring on the 4th station of five metals shear extrusion mould again;
F, cutting are cut off, and the gear cutter on five metals shear extrusion mould the 5th station cuts off the sprocket embryo tooth that moulding finishes;
G, in the cut while of sprocket embryo tooth, the clamping mold on the positioning clamping device is clamped to sprocket embryo tooth on the strap one by one;
H, along with patrix rises, clamping mold unclamps sprocket embryo tooth;
The drawstring device of I, punch press formula main frame, the strap that will plant sprocket is pulled upwardly a full-height tooth distance;
J, repeat above step and make the thick embryo finished product of single-edge zipper.
2. realize the five metals shear extrusion mould of the manufacturing process of the described a kind of three-point maize tooth metal slide fastener of claim 1, it is characterized in that: described five metals shear extrusion mould comprises edge-trimming cutter, tentatively make a cutter, precision is made a cutter, edge iron, gear cutter, on first station of five metals shear extrusion mould upper and lower mould edge-trimming cutter is installed all, the side waste material shape of being excised out on the edge of a knife shape of edge-trimming cutter and the metal wire rod is identical, all be equipped with on second station of five metals shear extrusion mould upper and lower mould and tentatively make a cutter, tentatively make a cutter and be one and can stamp out the stamping die of salient point and groove general shape, on the 3rd station of five metals shear extrusion mould upper and lower mould precision is installed all and makees a cutter, it is one can stamp out the stamping die of salient point and groove shapes that precision is made a cutter, on the 4th station of five metals shear extrusion mould upper and lower mould knife tool is installed all, knife tool is one can wash away the punching press shearing die of sprocket sharp edge and unnecessary rim charge, the locating clip clamper that gear cutter is installed on the 5th station of five metals shear extrusion lower mould and sprocket is clamped.
3. five metals shear extrusion mould according to claim 2 is characterized in that: the tooth bar jig structure that is used to locate metal wire rod also is installed on described the 4th station, and tooth bar jig structure is to be located at three protrusion pieces of counterdie edge iron end face.
4. five metals shear extrusion mould according to claim 2, it is characterized in that: on described the 4th station tooth bar stripper is installed also, the tooth bar stripper is a backgauge protecting cover that is installed on counterdie, offers the hole of passing for gear cutter on this backgauge protecting cover.
5. five metals shear extrusion mould according to claim 2, it is characterized in that: described locating clip clamper is to be installed on counterdie and driven by plate on the mould and the two clamping plates that can clamp, the space that has a ccontaining sprocket between two clamping plate also is equipped with back-moving spring on the described clamping plate.
6. five metals shear extrusion mould according to claim 2, it is characterized in that: on described first station and the 4th station bidirectional discharge device is installed, the bidirectional discharge device is to offer gas circuit at mould inside, all offers the discharge gas port of bleeding on two blanking positions of side waste material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101222349A CN101147946B (en) | 2006-09-19 | 2006-09-19 | Technology for manufacturing three-point maize tooth metal zip fastener and mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101222349A CN101147946B (en) | 2006-09-19 | 2006-09-19 | Technology for manufacturing three-point maize tooth metal zip fastener and mould |
Publications (2)
| Publication Number | Publication Date |
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| CN101147946A CN101147946A (en) | 2008-03-26 |
| CN101147946B true CN101147946B (en) | 2010-10-06 |
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| CN2006101222349A Expired - Fee Related CN101147946B (en) | 2006-09-19 | 2006-09-19 | Technology for manufacturing three-point maize tooth metal zip fastener and mould |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101849730B (en) * | 2010-04-28 | 2012-02-22 | 岳从平 | Processing method of metal zipper |
| CN103829466B (en) * | 2014-03-05 | 2016-01-13 | 福建浔兴拉链科技股份有限公司 | Two-way Chain tooth and slide fastener |
| CN104816132A (en) * | 2015-04-28 | 2015-08-05 | 安徽创荣服装辅料有限公司 | Metal zipper manufacturing process |
| EP3556242B1 (en) * | 2016-12-16 | 2022-05-18 | YKK Corporation | Fastener element and fastener stringer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2221740A (en) * | 1937-12-11 | 1940-11-12 | Conmar Prod Corp | Manufacture of slide fastener elements |
| US4055882A (en) * | 1975-02-27 | 1977-11-01 | Yoshida Kogyo Kabushiki Kaisha | Method of making a coupling element for a slide fastener |
| US4349953A (en) * | 1980-03-24 | 1982-09-21 | Yoshida Kogyo Kabushiki Kaisha | Method of manufacturing slide fastener coupling elements |
| US4388751A (en) * | 1979-10-29 | 1983-06-21 | Yoshida Kogyo K. K. | Method and apparatus for manufacturing slide fastener coupling elements |
| US5394593A (en) * | 1993-01-29 | 1995-03-07 | Yoshida Kogyo K.K. | Slide-fastener coupling element and method of making the same |
| CN2709054Y (en) * | 2004-07-07 | 2005-07-13 | 吴振发 | Chain teeth shaping device of metal zip fastener |
| CN1714964A (en) * | 2004-06-30 | 2006-01-04 | 吴振发 | Method and its device for forming teeth of metal slide fastener |
| CN1748893A (en) * | 2004-09-15 | 2006-03-22 | 朱国光 | Method for producing slide fastener tooth |
-
2006
- 2006-09-19 CN CN2006101222349A patent/CN101147946B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2221740A (en) * | 1937-12-11 | 1940-11-12 | Conmar Prod Corp | Manufacture of slide fastener elements |
| US4055882A (en) * | 1975-02-27 | 1977-11-01 | Yoshida Kogyo Kabushiki Kaisha | Method of making a coupling element for a slide fastener |
| US4388751A (en) * | 1979-10-29 | 1983-06-21 | Yoshida Kogyo K. K. | Method and apparatus for manufacturing slide fastener coupling elements |
| US4349953A (en) * | 1980-03-24 | 1982-09-21 | Yoshida Kogyo Kabushiki Kaisha | Method of manufacturing slide fastener coupling elements |
| US5394593A (en) * | 1993-01-29 | 1995-03-07 | Yoshida Kogyo K.K. | Slide-fastener coupling element and method of making the same |
| CN1714964A (en) * | 2004-06-30 | 2006-01-04 | 吴振发 | Method and its device for forming teeth of metal slide fastener |
| CN2709054Y (en) * | 2004-07-07 | 2005-07-13 | 吴振发 | Chain teeth shaping device of metal zip fastener |
| CN1748893A (en) * | 2004-09-15 | 2006-03-22 | 朱国光 | Method for producing slide fastener tooth |
Non-Patent Citations (1)
| Title |
|---|
| CN 1714964 A,全文. |
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| CN101147946A (en) | 2008-03-26 |
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