CN110038987B - Cold header die for hook nail processing and forming and method thereof - Google Patents
Cold header die for hook nail processing and forming and method thereof Download PDFInfo
- Publication number
- CN110038987B CN110038987B CN201910403175.XA CN201910403175A CN110038987B CN 110038987 B CN110038987 B CN 110038987B CN 201910403175 A CN201910403175 A CN 201910403175A CN 110038987 B CN110038987 B CN 110038987B
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- die
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000005452 bending Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000004080 punching Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G3/00—Making pins, nails, or the like
- B21G3/005—Nails or pins for special purposes, e.g. curtain pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G3/00—Making pins, nails, or the like
- B21G3/12—Upsetting; Forming heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G3/00—Making pins, nails, or the like
- B21G3/18—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The field of hardware processing, in particular to a cold header die for hook nail processing and forming and a method thereof. The cold header die for the hook nail processing molding comprises a female die, a male die for one-shot forming and a male die for two-shot forming, wherein the female die and the male die for one-shot forming are used for carrying out a first cold header stamping on a workpiece, the blank is used for upsetting a nail body primary blank with a coaxial straight rod section, a connecting section and a limiting part, a sheet penetrates into the connecting section and is extruded into a connecting arm of a bending structure, and the female die and the male die for the second-shot forming are used for carrying out cold header stamping on the connecting section part of the nail body primary blank and are used for extruding and compressing the connecting section into a compressing part. The cold header die for processing and forming is used by mutually matching the female die with the first-punch forming male die and the second-punch forming male die, and the nail hook is manufactured by the two-time cold header stamping.
Description
Technical Field
The application relates to the field of hardware processing, in particular to a cold header die for hook nail processing and forming and a method thereof.
Background
The hook nail is widely used in the pipeline installation process, is used for assisting in fixing a pipe in the middle of the pipe when the pipe is installed, is a nail body and is welded with a bent arm at the side edge of the nail body, and the use effect is poor because the bent arm is provided with a section of side edge welded with the nail body, so that the joint of the side edge contacts with the hole wall to separate from the welded part when the nail body is driven into a wall.
In order to solve the problems, the invention patent with the grant publication number of CN204533819U discloses a pipe nail which is characterized by comprising a nail body and a nail arm, wherein the nail arm is provided with a bent arm and a connecting hole, the nail body is a rod-shaped body, one end of the nail body is provided with a pointed head, the other end of the nail body is fixedly connected with the connecting hole on the nail arm, a circular fixing ring is arranged at the joint of the nail body and the nail arm and at one end close to the pointed head, and the bent arm is semicircular.
At least two steps are needed in the existing hook nail processing, namely, the nail body and the nail arm are respectively processed and molded, fixing rings are made on the nail body in a welding, molding, mounting and other modes, and connecting holes are drilled on the nail arm by using a drilling machine; secondly, the nail body and the nail arm are connected into a whole through a stamping or welding process. The existing hook nail is complex to use, low in machining efficiency and high in labor cost.
Disclosure of Invention
The invention provides a cold header die for hook nail processing and forming, which aims to solve the problems of complex use, low processing efficiency and high labor cost of the hook nails.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the utility model provides a cold heading machine mould for hook nail machine-shaping, includes master model, a punch forming male mould, two punch forming male moulds, the master model is used for carrying out the first cold heading punching press to the work piece and is used for upsetting the nail body primary blank that has coaxial straight-bar section, linkage segment and spacing portion with the blank to the linking arm of bending structure is extruded into with the sheet in the linkage segment that penetrates the nail body primary blank, the master model is used for carrying out the cold heading punching press to the linkage segment part of nail body primary blank with two punch forming male moulds for with the linkage segment extrusion compression to the clamping part.
Further, a first die cavity for forming the straight rod section of the primary blank of the nail body is arranged on the female die, a second die cavity for forming the connecting section of the primary blank of the nail body is arranged on the male die, a third die cavity for forming the limiting part is formed by enclosing the female die and the male die during die closing, and the first die cavity, the second die cavity and the third die cavity are coaxially arranged.
Further, the first die cavity penetrates through the female die, and one port of the first die cavity is a blank feeding port.
Further, an arc-shaped protruding portion is arranged on the die-assembling surface of the female die and the male die, an arc-shaped concave portion is arranged on the die-assembling surface of the male die and the female die, and a fourth die cavity for extruding the connecting arm is formed by the arc-shaped protruding portion and the arc-shaped concave portion when the female die and the male die are assembled.
Further, a first notch and a second notch are respectively arranged on the die clamping surfaces of the female die and the punch forming male die, and when the female die and the punch forming male die are clamped, the first notch and the second notch are tangential and used for cutting off redundant parts of cut sheets.
Further, a fifth die cavity for forming the pressing part is formed by surrounding the female die and the two-punch forming male die when the dies are matched.
Further, the cross-sectional area of the fifth mold cavity is larger than the cross-sectional area of the third mold cavity.
As can be seen from the above description of the present invention, compared with the prior art, the cold header die for processing and forming of the present invention is used by matching a female die with a male die for one-shot forming and a male die for two-shot forming, the female die and the male die for one-shot forming are used for upsetting a nail body primary blank, and extruding a connecting arm into a curved structure, penetrating into the nail body primary blank, the female die and the male die for two-shot forming are used for pressing the connecting arm onto a limiting portion, and the cold header die is simple to use, is formed on one cold header at one time, does not need manual splicing, secondary welding or stamping, and has high processing efficiency.
Drawings
FIG. 1 is a schematic diagram of a cold header die master die for hook pin forming in accordance with the present invention;
FIG. 2 is a schematic diagram of a cold header die-punch male die for hook pin forming according to the present invention;
FIG. 3 is a schematic diagram of the structure of the cold header die female die for hook nail forming and a punch forming male die when the dies are matched;
FIG. 4 is a schematic structural view of a cold header die two-punch male die for hook pin machining and forming;
FIG. 5 is a schematic diagram of the mold closing structure of the cold header mold female mold and the two-punch male mold for hook nail processing and forming;
FIG. 6 is a schematic view of the process flow of the forming of the hook of the present invention;
fig. 7 is a top view of the hook connecting arm of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention.
Referring to fig. 1-6, a cold header die for machining and forming comprises a female die 1, a first punch forming male die 2 and a second punch forming male die 3;
the female die 1 is provided with a first die cavity 11 for forming a straight rod section of a nail body primary blank, the die clamping surface of the female die 1 and a punch forming male die is provided with an arc-shaped protruding part 12 and a first notch 13, the first die cavity 11 penetrates through the female die, and one port of the first die cavity is a blank feeding port 111;
a second die cavity 21 for forming a primary blank connecting section of the nail body is arranged on the punch forming male die 2, and an arc-shaped concave part 22 and a second notch 23 are arranged on the die clamping surface of the punch forming male die 2 and the female die 1;
the female die 1 and the punch forming male die 2 enclose a third die cavity 14 for forming a limiting part when being matched; the first die cavity 11, the second die cavity 21 and the third die cavity 14 are coaxially arranged and used for upsetting a blank into a nail body primary blank with a coaxial straight rod section, a connecting section and a limiting part; the arc-shaped convex part 12 and the arc-shaped concave 23 enclose a fourth die cavity 24 for extruding the connecting arm, and the first notch 13 and the second notch 23 are tangential for cutting off the redundant cut-off part of the sheet;
the die assembly surface of the two-punch forming male die 3 and the female die 1 is provided with an arc-shaped concave part 31, a fifth die cavity 32 for forming a compacting part is formed by enclosing the two-punch forming male die during die assembly, the sectional area of the fifth die cavity 32 is larger than that of the third die cavity 14, and the female die 1 and the two-punch forming male die 3 are used for carrying out cold heading stamping on the connecting section part of the nail body blank and compressing the connecting section into the compacting part.
Referring to fig. 6 to 7, the working steps of the above-mentioned hook nail processing forming die in use are as follows:
s1, blanking, namely cutting a metal wire rod serving as a nail body raw material into a small-section blank 1a with the length conforming to the length according to the volume of a formed product;
s2, during primary cold heading stamping and die separation, the small-section blank 1a obtained in the step S1 and a sheet material for forming the connecting arm 2a are simultaneously placed into a female die and a punch forming male die, the sheet material for forming the connecting arm enters from a gap between the female die and the punch forming male die during die separation, the feeding direction of the sheet material is perpendicular to the feeding direction of the small-section blank,
when the die is assembled, under the action of a female die and a punch forming male die, the small-section blank is cold-headed into a nail body primary blank 11a, the nail body primary blank is provided with a straight rod section 111a, a connecting section 112a and a limiting part 113a which are coaxial, the diameter of the limiting part 113a is larger than that of the straight rod section 111 and the connecting section 112a,
when the die is closed, under the action of the female die and the first cold heading die, cutting off the redundant cutting part of the sheet material 2a, punching a connecting hole 21a on the sheet material of the connecting arm 2a by the connecting section 112a, simultaneously penetrating the connecting hole 21a into the connecting section, and extruding the connecting section into a bending structure;
s3, secondary cold heading stamping is carried out, the first cold heading die is removed, the connecting section 112a is extruded and compressed into a compressing part 112b under the action of the female die and the second stamping male die, the diameter of the compressing part 112b is larger than that of the connecting hole 21a, and the connecting arm 2a is compressed on the limiting part 113 a.
It will be understood that the invention has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The cold header die comprises a female die, a first punch forming male die and a second punch forming male die, wherein the female die and the first punch forming male die are used for carrying out first cold header stamping on a workpiece to be used for upsetting a nail body primary blank with a straight rod section, a connecting section and a limiting part which are coaxial, extruding sheets penetrating into the connecting section of the nail body primary blank into a connecting arm with a bending structure, and the female die and the second punch forming male die are used for carrying out cold header stamping on the connecting section part of the nail body primary blank and extruding and compressing the connecting section into a compressing part; the female die is provided with a first die cavity for forming a straight rod section of the primary blank of the nail body, the first punch forming male die is provided with a second die cavity for forming a connecting section of the primary blank of the nail body, the female die and the first punch forming male die enclose a third die cavity for forming a limiting part when being matched, and the first die cavity, the second die cavity and the third die cavity are coaxially arranged; the die assembly surface of the female die and the die assembly surface of the punch forming male die are respectively provided with a first notch and a second notch, when the female die and the punch forming male die are assembled, the first notch is tangential to the second notch and used for cutting off a sheet, the die assembly surface of the female die and the punch forming male die is provided with an arc-shaped protruding part, the die assembly surface of the punch forming male die and the female die is provided with an arc-shaped concave part, and the arc-shaped protruding part and the arc-shaped concave part enclose a fourth die cavity for extruding the connecting arm when the female die and the punch forming male die are assembled.
2. A cold header die for hook forming according to claim 1, wherein: the first die cavity penetrates through the female die, and one port of the first die cavity is a blank feeding port.
3. A cold header die for hook forming according to claim 1, wherein: and a fifth die cavity for forming the pressing part is formed by enclosing the female die and the two-punch forming male die when the dies are matched.
4. A cold header die for hook nail tooling as defined in claim 3, wherein: the cross-sectional area of the fifth mold cavity is larger than the cross-sectional area of the third mold cavity.
5. A method for forming a hook nail, characterized in that the cold header die according to any one of claims 1 to 4 is used, and the method for forming comprises:
s1, blanking, namely cutting the metal wire rod serving as a nail body raw material into small-section blanks conforming to the length according to the formed volume of the product;
s2, carrying out cold heading stamping once, putting the small-section blank obtained in the step S1 and a sheet material for forming a connecting arm into a female die and a punch forming male die at the same time, carrying out cold heading on the small-section blank to form a nail body primary blank under the action of the female die and the punch forming male die, wherein the nail body primary blank is provided with a coaxial straight rod section, a connecting section and a limiting part, the diameter of the limiting part is larger than that of the straight rod section and the connecting section, and the connecting section punches out a connecting hole in the sheet material of the connecting arm under the action of the female die and the punch forming male die, and the connecting hole simultaneously penetrates into the connecting section and is extruded into a bending structure;
s3, secondary cold heading stamping is carried out, the primary stamping male die is removed, the connecting section is extruded and compressed into a compressing part under the action of the female die and the secondary stamping male die, the diameter of the compressing part is larger than that of the connecting hole, and the connecting arm is compressed on the limiting part.
6. A method of forming a hook nail according to claim 5, wherein: during one-time cold heading stamping, a sheet for forming the connecting arm enters from a gap between a female die and a die-separating die of a punch forming male die, and the feeding direction of the sheet is perpendicular to the feeding direction of the small-section blank.
7. A method of forming a hook nail according to claim 5, wherein: and cutting off redundant parts of the sheet material when the female die and the punch forming male die are matched during one-time cold heading and punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910403175.XA CN110038987B (en) | 2019-05-15 | 2019-05-15 | Cold header die for hook nail processing and forming and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910403175.XA CN110038987B (en) | 2019-05-15 | 2019-05-15 | Cold header die for hook nail processing and forming and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110038987A CN110038987A (en) | 2019-07-23 |
| CN110038987B true CN110038987B (en) | 2024-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910403175.XA Active CN110038987B (en) | 2019-05-15 | 2019-05-15 | Cold header die for hook nail processing and forming and method thereof |
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| Country | Link |
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| CN (1) | CN110038987B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111346995B (en) * | 2020-03-10 | 2021-10-15 | 谢哲红 | Manufacturing method of bamboo joint extension ladder limiting bolt |
| CN113399603A (en) * | 2021-07-15 | 2021-09-17 | 泉州市建明环保科技有限公司 | Automatic hook nail punch forming equipment and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5088312A (en) * | 1989-07-08 | 1992-02-18 | Wafios Maschinenfabrik Gmbh & Co. | Upsetting device for upsetting the ends of elongated workpieces such as wire pieces |
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| CN1188390A (en) * | 1995-06-22 | 1998-07-22 | 埃贾克斯·库克有限公司 | Nail and nail forming process |
| CN1312142A (en) * | 2001-03-21 | 2001-09-12 | 倪小平 | Making process of hooked nail |
| CN204213481U (en) * | 2014-10-17 | 2015-03-18 | 邓维生 | A kind of combined type hook nail |
| CN204430132U (en) * | 2015-02-12 | 2015-07-01 | 嘉兴市余新金宏五金塑料厂 | A kind of collecting device termination cold upsetting forming die |
| CN204533819U (en) * | 2015-01-22 | 2015-08-05 | 陈沃仕 | A kind of Guan Ding |
| CN206824580U (en) * | 2017-04-01 | 2018-01-02 | 宝鸡市金海源钛标准件制品有限公司 | A kind of curved nail mould of titanium alloy |
| CN108015205A (en) * | 2017-12-20 | 2018-05-11 | 宾科汽车紧固件（昆山）有限公司 | Brake callipers guide finger cold-heading device and its production technology |
| CN108296408A (en) * | 2018-01-10 | 2018-07-20 | 东莞市喆堃五金科技有限公司 | A kind of processing technology of closing stainless steel blind rivet |
| CN210305556U (en) * | 2019-05-15 | 2020-04-14 | 邹建明 | Cold header die for hook nail machining and forming |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040200127A1 (en) * | 1998-08-13 | 2004-10-14 | Ivarson James K. | Ballistic forged barbless fishing hook and method of making same |
| JP2001225122A (en) * | 2000-02-15 | 2001-08-21 | Honda Motor Co Ltd | Manufacturing method of press die, and manufacturing method of press punch |
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2019
- 2019-05-15 CN CN201910403175.XA patent/CN110038987B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5088312A (en) * | 1989-07-08 | 1992-02-18 | Wafios Maschinenfabrik Gmbh & Co. | Upsetting device for upsetting the ends of elongated workpieces such as wire pieces |
| JPH079059A (en) * | 1993-04-30 | 1995-01-13 | Seiji Kawahara | Cold heading tool |
| CN1188390A (en) * | 1995-06-22 | 1998-07-22 | 埃贾克斯·库克有限公司 | Nail and nail forming process |
| CN1312142A (en) * | 2001-03-21 | 2001-09-12 | 倪小平 | Making process of hooked nail |
| CN204213481U (en) * | 2014-10-17 | 2015-03-18 | 邓维生 | A kind of combined type hook nail |
| CN204533819U (en) * | 2015-01-22 | 2015-08-05 | 陈沃仕 | A kind of Guan Ding |
| CN204430132U (en) * | 2015-02-12 | 2015-07-01 | 嘉兴市余新金宏五金塑料厂 | A kind of collecting device termination cold upsetting forming die |
| CN206824580U (en) * | 2017-04-01 | 2018-01-02 | 宝鸡市金海源钛标准件制品有限公司 | A kind of curved nail mould of titanium alloy |
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| CN210305556U (en) * | 2019-05-15 | 2020-04-14 | 邹建明 | Cold header die for hook nail machining and forming |
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| Publication number | Publication date |
|---|---|
| CN110038987A (en) | 2019-07-23 |
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