CN110449478A - A kind of copper bar precision cold extrusion molding mould - Google Patents
A kind of copper bar precision cold extrusion molding mould Download PDFInfo
- Publication number
- CN110449478A CN110449478A CN201910679869.6A CN201910679869A CN110449478A CN 110449478 A CN110449478 A CN 110449478A CN 201910679869 A CN201910679869 A CN 201910679869A CN 110449478 A CN110449478 A CN 110449478A
- Authority
- CN
- China
- Prior art keywords
- copper
- mold core
- extrusion molding
- bar
- upstream end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
Abstract
The invention discloses a kind of copper bar precision cold extrusion molding moulds, including extrusion molding dies, the extrusion forming mold core that is placed on copper bus-bar blank hollow portion, the fixed pulling seat of mold core for being set to the extrusion molding dies upstream end；The extrusion molding dies are provided with the contraction shaping mould hole passed through for copper bus-bar blank, and the upstream end for shrinking shaping mould hole is provided with copper material push rolls, and the downstream for shrinking shaping mould hole is provided with copper material pulling rolls；The extrusion forming mold core includes the extruding forced section positioned at the positioning and guiding portion of upstream end and positioned at downstream, and the upstream end for squeezing forced section is located at the copper material push rolls, and the downstream for squeezing forced section is located at the copper material pulling rolls；The upstream end in the positioning and guiding portion connects the fixed pulling seat of the mold core by mold core stay guy.Copper bus-bar blank can be processed into that wall thickness is relatively thin by the present invention and length is longer hollow from cooling copper bar.
Description
Technical field
The present invention relates to a kind of copper material production equipment and technology field, especially a kind of copper bar precision is cold extrusion shaped
Mold.
Background technique
With the continuous improvement of all types of industries electric product complexity, the demand of all kinds of abnormity copper bars is more and more, such as cuts
Face shape is that L shape copper bar, the cross sectional shape of L shape are " T " shaped T shape copper bar etc., the copper with hollow cooling channel structure
Busbar also when it is in need, hollow cooling channel structure can be used for logical cooling gas and cool down to copper bus-bar, can also apply
Logical cooling water cools down copper bus-bar after cloth insulated paint；Therefore the copper bus-bar with hollow cooling channel structure is compared to normal
Solid copper bus-bar is advised, there is the brilliant electrical occasion from cooling performance, especially suitable for big load transmission of electricity.
But the copper bus-bar with hollow cooling channel structure in the prior art using less, main reason is that its
Production technology is complex, and the difficulty of production and processing is larger, and conventional copper material processing technology such as continuously extruding and molding, drawing form
Deng, it is unable to satisfy hollow production needs from cooling copper bus-bar, it is in the prior art hollow mainly to be used from cooling copper bus-bar
The mode that section U-shaped copper material is merged with strip copper material heat processes acquisition, the higher cost that above-mentioned technique not only produces, but also processes
Product there are fusion gap, therefore the equal existing defects in terms of intensity is lower and electric property.
Short length but the thicker copper bus-bar blank with hollow cooling channel structure of wall thickness are first processed, then is passed through
Extrusion forming shrinks the wall thickness of copper bus-bar blank, extends the length of copper bus-bar blank simultaneously, with obtain long length it is hollow from
Cooling copper bus-bar, above-mentioned technique not only produce that cost is relatively low, but also there is no fusion gap, mechanical strength and electrical resistances for product
It can be preferably.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of copper bar precision cold extrusion molding moulds, can incite somebody to action
Short length but the thicker copper bus-bar blank with hollow cooling channel structure of wall thickness, are processed into that wall thickness is relatively thin and length is longer
It is hollow from cooling copper bar.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of copper bar precision cold extrusion molding mould including extrusion molding dies, is placed on the extruding of copper bus-bar blank hollow portion
The fixed pulling seat of formation die core, the mold core for being set to the extrusion molding dies upstream end；The extrusion molding dies are provided with confession
The contraction shaping mould hole that copper bus-bar blank passes through, the upstream end for shrinking shaping mould hole are provided with copper material push rolls, the receipts
The downstream for shortening pattern hole into is provided with copper material pulling rolls；The extrusion forming mold core includes positioned at the positioning and guiding portion of upstream end
With the extruding forced section for being located at downstream, the upstream end for squeezing forced section is located at the copper material push rolls, the extruding
The downstream of forced section is located at the copper material pulling rolls；The upstream end in the positioning and guiding portion is connected by mold core stay guy
The fixed pulling seat of the mold core.
As a further improvement of the above technical scheme, the cross sectional shape for shrinking shaping mould hole is rectangle, the copper
Material push rolls are four and surround rectangular configuration, and the copper material pulling rolls are also four and surround rectangular configuration；The copper material pushes away
The upstream of roller is sent to be additionally provided with several groups copper bar blank guide roller, copper bar blank guide roller described in every group is four and surrounds square
Shape structure.
As a further improvement of the above technical scheme, the cross sectional shape of the extrusion forming mold core is rectangle, described fixed
It is provided with positioning and guiding idler wheel on each face of position guide part, and the thickness in the positioning and guiding portion and copper bus-bar blank are hollow
The vertical size in portion is equal, and the width in the positioning and guiding portion is equal with the horizontal size of copper bus-bar blank hollow portion；It is described to squeeze
The thickness of forced section is pressed to be less than or equal to the vertical size of copper bus-bar blank hollow portion, the width for squeezing forced section is less than or equal to
The horizontal size of copper bus-bar blank hollow portion.
Thickness described herein refers to the extrusion forming mold core perpendicular to the vertical side length in the section of extending direction, this paper institute
Stating width refers to the extrusion forming mold core perpendicular to the horizontal side length in the section of extending direction；Horizontal size described herein and perpendicular
Ruler cun is perpendicular to the horizontal and vertical size on copper bus-bar blank extending direction.
As a further improvement of the above technical scheme, the upstream end in the positioning and guiding portion is provided with traction connecting screw hole
Identical as copper bus-bar blank extending direction with the axis of traction connecting stud, the traction connecting screw hole, the traction connects spiral shell
One end of column is located in the traction connecting screw hole, and the other end of the traction connecting stud is provided with drag-line fixed ring, described
One end of mold core stay guy is fixedly connected with the drag-line fixed ring, and the other end of the mold core stay guy passes through the mold core
Fixed pulling seat is fixedly connected with the fixed anchor block of drag-line.
Compared with prior art, the beneficial effects of the present invention are:
A kind of copper bar precision cold extrusion molding mould provided by the present invention, passes through the push-and-pull of copper material push rolls and copper material pulling rolls
Active force, the contraction shaping mould hole for making copper bus-bar blank pass through extrusion molding dies are formed, and by copper bus-bar blank
Extrusion forming mold core is arranged in hollow portion, can carry out processing and forming to from the hollow portion of cooling copper bar, so as to by short length,
But the thicker copper bus-bar blank with hollow cooling channel structure of wall thickness, is processed into that wall thickness is relatively thin and length is longer hollow
From cooling copper bar.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of copper bar precision cold extrusion molding mould of the present invention along the perpendicular of copper bus-bar blank extending direction
Straight the schematic diagram of the section structure；
Fig. 2 is that the positioning and guiding portion of extrusion forming mold core of the present invention is tied perpendicular to the section of copper bus-bar blank extending direction
Structure schematic diagram.
Specific embodiment
Referring to figs. 1 to Fig. 2, Fig. 1 to Fig. 2 is the structural schematic diagram of a specific embodiment of the invention.
As shown in Figure 1 to Figure 2, a kind of copper bar precision cold extrusion molding mould, including extrusion molding dies 1, it is placed on copper
The fixed pulling seat 4 of the extrusion forming mold core 3 of 2 hollow portion of busbar blank, the mold core for being set to 1 upstream end of extrusion molding dies；
The extrusion molding dies 1 are provided with the contraction shaping mould hole 11 passed through for copper bus-bar blank 2, the contraction shaping mould hole 11
Upstream end is provided with copper material push rolls 6, and the downstream for shrinking shaping mould hole 11 is provided with copper material pulling rolls 7；The extruding
Formation die core 3 includes the extruding forced section 32 positioned at the positioning and guiding portion 31 of upstream end and positioned at downstream, the extruding stress
The upstream end in portion 32 is located at the copper material push rolls 6, and the downstream for squeezing forced section 32 is located at the copper material pulling rolls 7
Place；The upstream end in the positioning and guiding portion 31 connects the fixed pulling seat 4 of the mold core by mold core stay guy 41.
Specifically, the cross sectional shape for shrinking shaping mould hole 11 is rectangle, and the copper material push rolls 6 are four and surround
Rectangular configuration, the copper material pulling rolls 7 also for four and surround rectangular configuration；The upstream of the copper material push rolls 6 is additionally provided with
Several groups copper bar blank guide roller 5, copper bar blank guide roller 5 described in every group is four and surrounds rectangular configuration.The extruding
The cross sectional shape of formation die core 3 is rectangle, is provided with positioning and guiding idler wheel 33 on each face in the positioning and guiding portion 31, and
The thickness in the positioning and guiding portion 31 is equal with the vertical size of 2 hollow portion of copper bus-bar blank, the width in the positioning and guiding portion 31
It spends equal with the horizontal size of 2 hollow portion of copper bus-bar blank；The thickness for squeezing forced section 32 is less than or equal to copper bus-bar blank 2
The vertical size of hollow portion, the width for squeezing forced section 32 are less than or equal to the horizontal size of 2 hollow portion of copper bus-bar blank.
Specifically, the upstream end in the positioning and guiding portion 31 is provided with traction connecting screw hole 34 and traction connecting stud 42,
The axis of the traction connecting screw hole 34 is identical as 2 extending direction of copper bus-bar blank, one end position of the traction connecting stud 42
In the traction connecting screw hole 34, the other end of the traction connecting stud 42 is provided with drag-line fixed ring 43, the mold core
One end of stay guy 41 is fixedly connected with the drag-line fixed ring 43, and the other end of the mold core stay guy 41 passes through the mould
The fixed pulling seat 4 of core is fixedly connected with the fixed anchor block 44 of drag-line.
When work, copper bus-bar blank 2 is placed between the copper material push rolls 6 and the fixed pulling seat 4 of the mold core first,
Then the extrusion forming mold core 3 for connecting the mold core stay guy 41 is placed on the hollow portion of copper bus-bar blank 2, and wanted
It is located at the upstream end for squeezing forced section 32 at the copper material push rolls 6, the downstream for squeezing forced section 32 is located at
At the copper material pulling rolls 7, the extrusion molding dies 1, the copper material push rolls 6 and the copper material pulling rolls 7 is avoided to squeeze
Hollow channel malformation is caused when pressing copper material lateral surface；When the malposition for squeezing forced section 32, can pass through
The drag-line fixes anchor block 44 or the traction connecting stud 42 to be adjusted.
Then start the copper material push rolls 6 and the copper material pulling rolls 7 carry out extrusion forming operation, squeezed due to described
The positioning and guiding portion 31 of molded mold core 3 is located in the hollow channel of copper bus-bar blank 2 and is close to each inner sidewall, therefore
The posture correctness for squeezing forced section 32 can be kept, and is provided with positioning on each face in the positioning and guiding portion 31
Guide roller 33 is conducive to improve copper bus-bar blank 2 in the movement smoothness in the positioning and guiding portion 31.
Better embodiment of the invention is illustrated above, certainly, the present invention can also using with it is above-mentioned
The different form of embodiment, those skilled in the art are made equivalent on the premise of without prejudice to spirit of the invention
Transformation or corresponding change, all should belong in protection scope of the present invention.
Claims (4)
1. a kind of copper bar precision cold extrusion molding mould, it is characterised in that: including extrusion molding dies (1), be placed on copper bus-bar
The fixed pulling seat of the extrusion forming mold core (3) of blank (2) hollow portion, the mold core for being set to the extrusion molding dies (1) upstream end
(4)；The extrusion molding dies (1) are provided with the contraction shaping mould hole (11) passed through for copper bus-bar blank (2), described to be shrunk to
The upstream end in pattern hole (11) is provided with copper material push rolls (6), and the downstream for shrinking shaping mould hole (11) is provided with copper material
Pulling rolls (7)；The extrusion forming mold core (3) includes the positioning and guiding portion (31) positioned at upstream end and the extruding positioned at downstream
Forced section (32), the upstream end for squeezing forced section (32) are located at the copper material push rolls (6), the extruding forced section
(32) downstream is located at the copper material pulling rolls (7)；It is drawn by the way that mold core is fixed the upstream end of the positioning and guiding portion (31)
It is fixed pulling seat (4) that rope (41) connects the mold core.
2. a kind of copper bar precision cold extrusion molding mould according to claim 1, it is characterised in that: the contraction shaping mould
The cross sectional shape in hole (11) is rectangle, and the copper material push rolls (6) are four and surround rectangular configuration, the copper material pulling rolls
(7) also it is four and surrounds rectangular configuration；The upstream of the copper material push rolls (6) is additionally provided with several groups copper bar blank guide roller
(5), copper bar blank guide roller (5) described in every group is four and surrounds rectangular configuration.
3. a kind of copper bar precision cold extrusion molding mould according to claim 1, it is characterised in that: the extrusion forming mold
The cross sectional shape of core (3) is rectangle, is provided with positioning and guiding idler wheel (33) on each face of the positioning and guiding portion (31), and
The thickness of the positioning and guiding portion (31) is equal with the vertical size of copper bus-bar blank (2) hollow portion, the positioning and guiding portion
(31) width is equal with the horizontal size of copper bus-bar blank (2) hollow portion；It is described squeeze forced section (32) thickness be less than etc.
In the vertical size of copper bus-bar blank (2) hollow portion, the width for squeezing forced section (32) is less than or equal to copper bus-bar blank (2)
The horizontal size of hollow portion.
4. a kind of copper bar precision cold extrusion molding mould according to claim 1, it is characterised in that: the positioning and guiding portion
(31) upstream end is provided with traction connecting screw hole (34) and traction connecting stud (42), the axis of traction connecting screw hole (34)
Line is identical as copper bus-bar blank (2) extending direction, and one end of traction connecting stud (42) is located at the traction connecting screw hole
(34) in, the other end of traction connecting stud (42) is provided with drag-line fixed ring (43), the mold core stay guy (41)
One end be fixedly connected with the drag-line fixed ring (43), the other end of the mold core stay guy (41) passes through the mold core and fixes
Pulling seat (4) is fixedly connected with drag-line fixed anchor block (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679869.6A CN110449478A (en) | 2019-07-26 | 2019-07-26 | A kind of copper bar precision cold extrusion molding mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679869.6A CN110449478A (en) | 2019-07-26 | 2019-07-26 | A kind of copper bar precision cold extrusion molding mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110449478A true CN110449478A (en) | 2019-11-15 |
Family
ID=68483560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910679869.6A Withdrawn CN110449478A (en) | 2019-07-26 | 2019-07-26 | A kind of copper bar precision cold extrusion molding mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110449478A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682638A (en) * | 2022-04-01 | 2022-07-01 | 南通星诺冷冻设备有限公司 | Hollow self-cooling copper busbar blank production equipment |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0405065A2 (en) * | 1989-06-30 | 1991-01-02 | Fried. Krupp AG Hoesch-Krupp | Method of producing rectangular hollow sections of steel with differential wall thickness |
| JPH10235433A (en) * | 1997-02-27 | 1998-09-08 | Nkk Corp | Method for forming square steel tube |
| JPH11342419A (en) * | 1998-05-28 | 1999-12-14 | Nippon Steel Corp | Clad steel pipe manufacture by press roll piercing machine |
| CN2455399Y (en) * | 2001-02-19 | 2001-10-24 | 蔡长平 | Apparatus for shaping square rear axle of semi-trailer |
| CN1448228A (en) * | 2002-03-29 | 2003-10-15 | 株式会社神户制钢所 | Apparatus for producing internally grooved tube |
| CN2690065Y (en) * | 2004-04-09 | 2005-04-06 | 王秀和 | Seamless steel pipe combined pipe mill group |
| CN202316604U (en) * | 2011-12-07 | 2012-07-11 | 重庆鸽牌电线电缆有限公司 | Drawing die for rectangular copper bar |
| CN104889195A (en) * | 2015-06-09 | 2015-09-09 | 常州市腾田液压机械有限公司 | Combined forming process and forming device for pipes with large and medium calibers |
| CN206028344U (en) * | 2016-08-31 | 2017-03-22 | 无锡市新湖冷拔校直机厂 | Cold drawing device |
| CN206122382U (en) * | 2016-11-01 | 2017-04-26 | 天津中西盛嘉科技股份有限公司 | Square pipe suppression device |
| CN107716580A (en) * | 2017-11-08 | 2018-02-23 | 安徽盛达前亮铝业有限公司 | A kind of large thin-wall square tube extrusion die |
| CN109396213A (en) * | 2018-11-24 | 2019-03-01 | 广东伟强铜业科技有限公司 | A kind of precision copper rod draw-off gear |
-
2019
- 2019-07-26 CN CN201910679869.6A patent/CN110449478A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0405065A2 (en) * | 1989-06-30 | 1991-01-02 | Fried. Krupp AG Hoesch-Krupp | Method of producing rectangular hollow sections of steel with differential wall thickness |
| JPH10235433A (en) * | 1997-02-27 | 1998-09-08 | Nkk Corp | Method for forming square steel tube |
| JPH11342419A (en) * | 1998-05-28 | 1999-12-14 | Nippon Steel Corp | Clad steel pipe manufacture by press roll piercing machine |
| CN2455399Y (en) * | 2001-02-19 | 2001-10-24 | 蔡长平 | Apparatus for shaping square rear axle of semi-trailer |
| CN1448228A (en) * | 2002-03-29 | 2003-10-15 | 株式会社神户制钢所 | Apparatus for producing internally grooved tube |
| CN2690065Y (en) * | 2004-04-09 | 2005-04-06 | 王秀和 | Seamless steel pipe combined pipe mill group |
| CN202316604U (en) * | 2011-12-07 | 2012-07-11 | 重庆鸽牌电线电缆有限公司 | Drawing die for rectangular copper bar |
| CN104889195A (en) * | 2015-06-09 | 2015-09-09 | 常州市腾田液压机械有限公司 | Combined forming process and forming device for pipes with large and medium calibers |
| CN206028344U (en) * | 2016-08-31 | 2017-03-22 | 无锡市新湖冷拔校直机厂 | Cold drawing device |
| CN206122382U (en) * | 2016-11-01 | 2017-04-26 | 天津中西盛嘉科技股份有限公司 | Square pipe suppression device |
| CN107716580A (en) * | 2017-11-08 | 2018-02-23 | 安徽盛达前亮铝业有限公司 | A kind of large thin-wall square tube extrusion die |
| CN109396213A (en) * | 2018-11-24 | 2019-03-01 | 广东伟强铜业科技有限公司 | A kind of precision copper rod draw-off gear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682638A (en) * | 2022-04-01 | 2022-07-01 | 南通星诺冷冻设备有限公司 | Hollow self-cooling copper busbar blank production equipment |
| CN114682638B (en) * | 2022-04-01 | 2023-10-13 | 台州市品冠洁具有限公司 | Hollow self-cooling copper busbar blank production equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191115 |
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| WW01 | Invention patent application withdrawn after publication |