CN110142306A - A kind of composite die improving cold drawn steel surface flatness - Google Patents

A kind of composite die improving cold drawn steel surface flatness Download PDF

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Publication number
CN110142306A
CN110142306A CN201910331628.2A CN201910331628A CN110142306A CN 110142306 A CN110142306 A CN 110142306A CN 201910331628 A CN201910331628 A CN 201910331628A CN 110142306 A CN110142306 A CN 110142306A
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China
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cold
drawn
metal material
drawn steel
composite die
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Granted
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CN201910331628.2A
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Chinese (zh)
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CN110142306B (en
Inventor
谢龙魁
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Zhejiang Xinhang Stainless Steel Co ltd
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Individual
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C3/00Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02Dies; Selection of material therefor; Cleaning thereof
    • B21C3/08Dies; Selection of material therefor; Cleaning thereof with section defined by rollers, balls, or the like

Abstract

The invention discloses a kind of composite dies for improving cold drawn steel surface flatness, its structure includes cold drawing die main body, hole mark nameplate, bolt fixing hole, drawbench fixing seat, composite die is combined by crank location structure with compression cold-drawn structure, when the shake that metal material occurs in Cold Drawing Process can be eliminated by crank gearing, preventing metal material, there is a phenomenon where shakes, and metal material surface to be caused jutter occur in die hole, the quality after effectively raising metal material cold-drawn;With mold force of sliding friction occurs for metal material in compression process simultaneously, temperature of the mold in processing can be effectively reduced, it prevents mold to be chronically at the case where hot operation leads to accelerated ageing, and keeps metal material more solid by hammering and improve surface smoothness.

Description

A kind of composite die improving cold drawn steel surface flatness
Technical field
The present invention relates to mould applications, are a kind of composite dies for improving cold drawn steel surface flatness particularly.
Background technique
Seamless steel pipe continues to use always traditional deformation drawing process in cold-drawn production, in traditional cold-drawing seamless tube technique It is processed using cold-drawn external mold, cold drawing die is a kind of tool stretched to metal material, in cold drawing of metal processing, Metal is set to be forced through mold by external force, metal cross-sectional area is compressed, and obtains required cross-sectional area shape With the tool of size, but technology considers incomplete at present, has the disadvantages that 1, when metal material is when stretching, tail portion meeting Occur dancing, shake metal material therewith in mould inside, cause metal material be stretched rear surface generate jutter, sternly Ghost image rings the quality to metal material processing of drawbench;2, metal material generates static friction after being compressed between mold, Increase die hole surface temperature quickly, so make mold accelerated ageing wear, after causing metal material compress in mold and Fray, which generates, between mould inner wall rubs and scratches, and reduces the quality of cold-drawn metal material.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of composite die for improving cold drawn steel surface flatness.
To achieve the goals above, the present invention is to realize by the following technical solutions: a kind of raising cold-drawn steel surface The composite die of smoothness, structure include cold drawing die main body, hole mark nameplate, bolt fixing hole, drawbench fixing seat, The bolt fixing hole is set there are four extending through to be connected to fixed four angles of seating face of drawbench, and the drawbench fixing seat is It hollow circular ring structure and is bolted on together with drawbench, the cold drawing die body outer surface and drawbench fixing seat Inner wall welds together and is concentric structure, and the hole mark nameplate is nested in cold drawing die main body front bottom, described Cold drawing die main body is by crank location structure, cold drawn steel entrance region, cold drawn steel outlet area, compression cold-drawn structure composition, the song Handle location structure outer surface welds together with drawbench fixing seat inner wall, and the compression cold-drawn structure is nested in crank positioning knot Among structure, the cold drawn steel entrance region is located at compression cold-drawn structure left end, and the cold drawn steel outlet area is installed on compression cold-drawn It structure right end and is parallel to each other with cold drawn steel entrance region.
As a further improvement of the present invention, the crank location structure is connected by composite die set, Self-resetting spring, crank Bar, fixed rotating shaft composition, composite die set outer surface weld together with drawbench fixing seat inner wall, the crank connecting link Upper and lower ends are mutually fastened with composite die set, compression cold-drawn structure respectively, and the fixed rotating shaft is located at two crank connecting links and hands over Be gap-matched at fork and with crank connecting link, Self-resetting spring left and right ends respectively with three points from top to bottom of crank connecting link Two at be closely together.
As a further improvement of the present invention, the compression cold-drawn structure is by pinch rolloer, idler wheel steady rest, stent Core, roll fixed shaft composition, the stent core outer surface are mutually fastened with crank connecting link bottom, and the pinch rolloer is equidistantly equal Even to be distributed in stent core inner, the roll fixed shaft is cylindrical structure and welds together with pinch rolloer in concentric circles knot Structure, the idler wheel steady rest is hexagonal structure and bottom is welded to each other with roll fixed shaft.
As a further improvement of the present invention, the pinch rolloer is by slide block guide rail, roller bodies, fixing bearing, spiral Spring, fixing groove, magnetic drive ring, sliding shoe composition, the magnetic drive ring inner wall are mutually detained with roll fixed shaft outer surface It closes, the fixing bearing inner wall is closely packed together with magnetic drive ring outer surface, and the roller bodies are mutually detained with fixing bearing It closes and is concentric structure, the fixing groove is sector structure and is equidistantly uniformly distributed in inside roller bodies that the sliding block is led Rail is cylindrical structure and is installed on fixed groove center, and the sliding shoe is gap-matched with slide block guide rail, the spiral bullet Spring upper and lower ends are closely packed together with roller bodies, sliding shoe respectively.
As a further improvement of the present invention, the pinch rolloer sets there are six and surrounds hexagonal structure, therefore cold-drawn Steel can both complete cold-drawn processing after passing through pinch rolloer, and sliding friction is generated between pinch rolloer, and static friction is avoided to lead Refrigeration pulls out steel surface and collides with.
As a further improvement of the present invention, the fixing bearing is unilateral bearing, and the rotation between opposite two Contrary, avoiding cold drawn steel, there is a situation where retract.
As a further improvement of the present invention, it compresses and is located at composite die set center under cold-drawn structure normal condition.
As a further improvement of the present invention, the sliding shoe is the magnetic patch of the pole magnetic pole N, while magnetic drive ring is close to cold The one side for pulling out steel is equipped with the extremely fan-shaped magnetic patch of N.
The beneficial effects of the present invention are: composite die is combined by crank location structure with compression cold-drawn structure, work as gold Belonging to the shake that material occurs in Cold Drawing Process can be eliminated by crank gearing, prevent metal material from occurring in die hole Shake causes metal material surface the phenomenon that jutter occur, the quality after effectively raising metal material cold-drawn;Metal simultaneously With mold force of sliding friction occurs for material in compression process, can be effectively reduced temperature of the mold in processing, prevent mould Tool is chronically at the case where hot operation leads to accelerated ageing, and keeps metal material more solid and improve surface to put down by hammering Whole degree.
1, crank location structure of the invention is combined with compression cold-drawn structure, when metal material is swung, is compressed cold Structure is pulled out to crank connecting link while generating extruding and stretching action, therefore crank connecting link is rotated using fixed rotating shaft as the center of circle and to certainly Reset spring generates extruding and stretches, and makes to compress the increase of the distance between cold-drawn structure and composite die set inner wall and reduce, because This compression cold-drawn structure can freely swing in composite die set and the swing that metal material occurs is offset, and effectively prevent Metal material generates jutter in Cold Drawing Process, improves cold drawing of metal quality.
2, compression cold-drawn structure of the invention when in use, metal material in the squeezing action by pinch rolloer, with Pinch rolloer generates force of sliding friction, and generating static friction with mold when effectively preventing metal material compression causes mold quick Heating, slows down the speed of mold aging, at the same sliding shoe and metal material apart from it is nearest when, between sliding shoe and magnetic drive ring It generates repulsion and sliding shoe is pushed to pop up along slide block guide rail, hammer effect is generated to metal material, ties metal material more It is real, while also improving the flatness of metal material surface.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for the composite die for improving cold drawn steel surface flatness of the present invention.
Fig. 2 is the structural schematic diagram of cold drawing die main body side elevational cross-section of the present invention.
Fig. 3 is the structural schematic diagram in the face Z-Z in Fig. 2 of the present invention.
Fig. 4 is the structural schematic diagram of present invention compression cold-drawn structure.
Fig. 5 is the structural schematic diagram of M-N in Fig. 4 of the present invention.
In figure: cold drawing die main body -1, hole mark nameplate -2, bolt fixing hole -3, drawbench fixing seat -4, crank are fixed Bit architecture -11, cold drawn steel entrance region -12, cold drawn steel outlet area -13, compression cold-drawn structure -14, composite die set -111, runback Position spring -112, crank connecting link -113, fixed rotating shaft -114, pinch rolloer-a1, idler wheel steady rest-a2, fixed mold core-a3, rolling Take turns fixing axle-a4, slide block guide rail-a11, roller bodies-a12, fixing bearing-a13, helical spring-a14, fixing groove-a15, magnetic Power drive ring-a16, sliding shoe-a17.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, FIG. 1 to FIG. 5 The structure of the composite die of embodiment of the present invention is schematically shown, With reference to embodiment, is further described The present invention.
Embodiment
Fig. 1-Fig. 2 is please referred to, the present invention provides a kind of composite die for improving cold drawn steel surface flatness, and structure includes Cold drawing die main body 1, hole identify nameplate 2, bolt fixing hole 3, drawbench fixing seat 4, there are four the bolt fixing hole 3 is set It extends through and is connected to four, 4 surface of drawbench fixing seat angle, the drawbench fixing seat 4 is hollow circular ring structure and and cold-drawn Machine is bolted on together, and 1 outer surface of cold drawing die main body welds together with 4 inner wall of drawbench fixing seat and is Concentric structure, hole mark nameplate 2 are nested in the positive bottom of cold drawing die main body 1, and the cold drawing die main body 1 is by song Handle location structure 11, cold drawn steel entrance region 12, cold drawn steel outlet area 13, compression cold-drawn structure 14 form, the crank positioning knot 11 outer surface of structure welds together with 4 inner wall of drawbench fixing seat, and the compression cold-drawn structure 14 is nested in crank location structure Among 11, the cold drawn steel entrance region 12 is located at compression 14 left end of cold-drawn structure, and the cold drawn steel outlet area 13 is installed on pressure It 14 right end of contracting cold-drawn structure and is parallel to each other with cold drawn steel entrance region 12.
Fig. 3-Fig. 4 is please referred to, the crank location structure 11 is connected by composite die set 111, Self-resetting spring 112, crank Bar 113, fixed rotating shaft 114 form, and the composite die covers 111 outer surfaces and welds together with 4 inner wall of drawbench fixing seat, institute It states 113 upper and lower ends of crank connecting link mutually to fasten with composite die set 111, compression cold-drawn structure 14 respectively, the fixed rotating shaft 114 are located at two 113 infalls of crank connecting link and are gap-matched with crank connecting link 113, the Self-resetting spring 112 or so Both ends are closely together at crank connecting link 113 from top to bottom 2/3rds respectively.The compression cold-drawn structure 14 is rolled by compression Take turns a1, idler wheel steady rest a2, fixed mold core a3, roll fixed shaft a4 composition, the outer surface fixed mold core a3 and crank connecting link 113 bottoms mutually fasten, and the pinch rolloer a1 is equidistantly uniformly distributed in inside fixed mold core a3, and the roll fixed shaft a4 is Cylindrical structure and weld together with pinch rolloer a1 in concentric structure, the idler wheel steady rest a2 is hexagonal structure and bottom Portion is welded to each other with roll fixed shaft a4.It compresses and is located at 111 centers of composite die set under 14 normal condition of cold-drawn structure, and When metal material is swung, compression cold-drawn structure 14 generates extruding and stretching action to crank connecting link 113, by metal material The power of swing is eliminated in composite die set 111, prevents metal material from generating jutter in Cold Drawing Process.
Referring to Fig. 5, the pinch rolloer a1 is by slide block guide rail a11, roller bodies a12, fixing bearing a13, spiral bullet Spring a14, fixing groove a15, magnetic drive ring a16, sliding shoe a17 composition, the magnetic drive ring a16 inner wall and roll fixed shaft The outer surface a4 mutually fastens, and the fixing bearing a13 inner wall is closely packed together with the outer surface magnetic drive ring a16, the idler wheel Main body a12 and fixing bearing a13 is mutually fastened and is concentric structure, and the fixing groove a15 is that sector structure is simultaneously equidistant uniform It is distributed in inside roller bodies a12, the slide block guide rail a11 is cylindrical structure and is installed on the center fixing groove a15, the cunning Motion block a17 is gap-matched with slide block guide rail a11, the helical spring a14 upper and lower ends respectively with roller bodies a12, cunning Motion block a17 is closely packed together.The pinch rolloer a1 sets there are six and surrounds hexagonal structure, therefore cold drawn steel passes through compression rolling Both cold-drawn processing can have been completed after wheel a1, and has generated sliding friction between pinch rolloer a1, and static friction is avoided to lead to cold drawn steel It collides on surface.Stating fixing bearing a13 is unilateral bearing, and the direction of rotation between opposite two is on the contrary, avoid cold-drawn There is a situation where retract for steel.The sliding shoe a17 is the magnetic patch of the pole magnetic pole N, while magnetic drive ring a16 is close to the one of cold drawn steel Face is equipped with the extremely fan-shaped magnetic patch of N, therefore when sliding shoe a17 and magnetic drive ring a16 are on same straight line, homopolar magnet is generated Repulsion push sliding shoe a17 along slide block guide rail a11 pop up, to metal material generate hammer action, tie metal material more It is real, while improving the flatness of metal material surface.
Before cold-drawn processing, first metal material head is carried out to roll thin processing, metal material head is then passed through into cold drawn steel Entrance region 12 enters compression cold-drawn structure 14 and stretches out from steel outlet area 13 is pulled out, and then is extracted using gripping body.
When in use, when metal material tail portion is swung, the power for swinging generation makes to compress cold-drawn structure 14 to crank company Bar 113, which generates, to be squeezed or stretches, and crank connecting link 113 is axis rotation with fixed rotating shaft 114 and generates to Self-resetting spring 112 It squeezes or stretches, when crank connecting link 113 generates squeezing effect to Self-resetting spring 112, compress cold-drawn structure 14 and compound die Tool set 111 distance increase, and when crank connecting link 113 to Self-resetting spring 112 generate drawing effect when, compression cold-drawn structure 14 with 111 distance of composite die set reduces, therefore compression cold-drawn structure 14 can be covered in 111 in composite die and freely be put by displacement It is dynamic, and the power venting for effectively swinging metal material tail portion, prevent metal material and mold opposite since shake generates Movement avoids metal material surface from generating jutter;And when metal material enters compression cold-drawn structure 14, pinch rolloer a1 is to gold Category is squeezed, and metal material and pinch rolloer a1 generate force of sliding friction, and mold is prevented to be rapidly heated abrasion, and when sliding Block a17 and metal material apart from it is nearest when, magnetic patch and sliding shoe a17 on magnetic drive ring a16 generate repulsion and along sliding block Guide rail a11 is moved up, and generates hammer action to compressed metal material, keeps metal material more solid and to improve surface flat Whole degree.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this The range of invention is indicated by the appended claims rather than the foregoing description, it is intended that the equivalent requirements of the claims will be fallen in All changes in meaning and scope are included within the present invention.It should not treat any reference in the claims as limitation institute The claim being related to.

Claims (6)

1. a kind of composite die for improving cold drawn steel surface flatness, structure includes cold drawing die main body (1), hole mark inscription Board (2), bolt fixing hole (3), drawbench fixing seat (4), it is characterised in that:
The bolt fixing hole (3), which is run through, is connected to drawbench fixing seat (4) surface, the drawbench fixing seat (4) and cold-drawn Machine is bolted on together, and the cold drawing die main body (1) welds together with drawbench fixing seat (4), the hole Mark nameplate (2) is nested in cold drawing die main body (1) front;
The cold drawing die main body (1) by crank location structure (11), cold drawn steel entrance region (12), cold drawn steel outlet area (13), Cold-drawn structure (14) composition is compressed, the crank location structure (11) welds together with drawbench fixing seat (4), the compression Cold-drawn structure (14) is nested among crank location structure (11), and the cold drawn steel entrance region (12) is located at compression cold-drawn structure (14) left end, the cold drawn steel outlet area (13) are installed on compression cold-drawn structure (14) right end.
2. a kind of composite die for improving cold drawn steel surface flatness according to claim 1, it is characterised in that: the song Handle location structure (11) is by composite die set (111), Self-resetting spring (112), crank connecting link (113), fixed rotating shaft (114) group At, the composite die set (111) welds together with drawbench fixing seat (4), the crank connecting link (113) respectively with it is compound Mold set (111), compression cold-drawn structure (14) mutually fasten, and the fixed rotating shaft (114) and crank connecting link (113) use gap Cooperation, the Self-resetting spring (112) are closely together with crank connecting link (113) respectively.
3. a kind of composite die for improving cold drawn steel surface flatness according to claim 1, it is characterised in that: the pressure Contracting cold-drawn structure (14) is made of pinch rolloer (a1), idler wheel steady rest (a2), fixed mold core (a3), roll fixed shaft (a4), The fixed mold core (a3) and crank connecting link (113) mutually fasten, and the pinch rolloer (a1) is equidistantly uniformly distributed in stent Core (a3) is internal, and the roll fixed shaft (a4) welds together with pinch rolloer (a1), the idler wheel steady rest (a2) and rolling Wheel fixing axle (a4) is welded to each other.
4. a kind of composite die for improving cold drawn steel surface flatness according to claim 3, it is characterised in that: the pressure Contracting idler wheel (a1) is by slide block guide rail (a11), roller bodies (a12), fixing bearing (a13), helical spring (a14), fixing groove (a15), magnetic drive ring (a16), sliding shoe (a17) composition, the magnetic drive ring (a16) and roll fixed shaft (a4) are mutual It fastens, the fixing bearing (a13) is closely packed together with magnetic drive ring (a16), the roller bodies (a12) and fixing bearing (a13) it mutually fastens, the fixing groove (a15) is equidistantly uniformly distributed in roller bodies (a12) inside, the slide block guide rail (a11) it is installed on the center fixing groove (a15), the sliding shoe (a17) is gap-matched with slide block guide rail (a11), the spiral shell Rotation spring (a14) is closely packed together with roller bodies (a12), sliding shoe (a17) respectively.
5. a kind of composite die for improving cold drawn steel surface flatness according to claim 3 or 4, it is characterised in that: institute Pinch rolloer (a1) is stated to set there are six and surround hexagonal structure.
6. a kind of composite die for improving cold drawn steel surface flatness according to claim 4, it is characterised in that: described solid It is unilateral bearing that dead axle, which holds (a13), and the direction of rotation between opposite two is opposite.
CN201910331628.2A 2019-04-24 2019-04-24 Composite die for improving surface smoothness of cold-drawn steel Active CN110142306B (en)

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CN110142306B CN110142306B (en) 2020-07-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112222213A (en) * 2020-11-16 2021-01-15 天长市金浩日用品有限公司 Wire drawing die with metal wire anti-deviation structure and using method thereof
CN113500107A (en) * 2021-09-09 2021-10-15 南通飞神金属制品有限公司 Cold drawing equipment for processing stainless steel products

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1129618A (en) * 1995-02-24 1996-08-28 黄爱忠 Swinging die seat for cold drawing machine
CN2291980Y (en) * 1995-02-24 1998-09-23 黄爱忠 Swing die seat for cold-drawing machine
CN2920467Y (en) * 2006-06-02 2007-07-11 贵州航天南海机电有限公司 Steel wire on line vibration proof device of straight feeding type wire drawing machine
CN201618741U (en) * 2010-02-08 2010-11-03 宋国锋 Rolling square and flat steel cover die
CN201625673U (en) * 2010-02-08 2010-11-10 宋国锋 Rotary hexagonal cold drawing die set
CN204074763U (en) * 2014-10-21 2015-01-07 太原普莱设工程技术有限公司 A kind of six roller wire drawing roller dies
CN108626303A (en) * 2018-06-26 2018-10-09 嘉兴四友金属制品有限公司 A kind of vibration abatement on water tank wire-drawing equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1129618A (en) * 1995-02-24 1996-08-28 黄爱忠 Swinging die seat for cold drawing machine
CN2291980Y (en) * 1995-02-24 1998-09-23 黄爱忠 Swing die seat for cold-drawing machine
CN2920467Y (en) * 2006-06-02 2007-07-11 贵州航天南海机电有限公司 Steel wire on line vibration proof device of straight feeding type wire drawing machine
CN201618741U (en) * 2010-02-08 2010-11-03 宋国锋 Rolling square and flat steel cover die
CN201625673U (en) * 2010-02-08 2010-11-10 宋国锋 Rotary hexagonal cold drawing die set
CN204074763U (en) * 2014-10-21 2015-01-07 太原普莱设工程技术有限公司 A kind of six roller wire drawing roller dies
CN108626303A (en) * 2018-06-26 2018-10-09 嘉兴四友金属制品有限公司 A kind of vibration abatement on water tank wire-drawing equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112222213A (en) * 2020-11-16 2021-01-15 天长市金浩日用品有限公司 Wire drawing die with metal wire anti-deviation structure and using method thereof
CN112222213B (en) * 2020-11-16 2024-04-02 天长市金浩日用品有限公司 Wire drawing die with metal wire anti-deflection structure and use method thereof
CN113500107A (en) * 2021-09-09 2021-10-15 南通飞神金属制品有限公司 Cold drawing equipment for processing stainless steel products
CN113500107B (en) * 2021-09-09 2021-11-09 南通飞神金属制品有限公司 Cold drawing equipment for processing stainless steel products

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