CN105312344B - A kind of regular hexagon drawing die - Google Patents

A kind of regular hexagon drawing die Download PDF

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Publication number
CN105312344B
CN105312344B CN201510662368.9A CN201510662368A CN105312344B CN 105312344 B CN105312344 B CN 105312344B CN 201510662368 A CN201510662368 A CN 201510662368A CN 105312344 B CN105312344 B CN 105312344B
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China
Prior art keywords
regular hexagon
mould body
forming hole
entrance
section
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CN201510662368.9A
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CN105312344A (en
Inventor
陈籽霖
韩畑州
吴开传
王支章
周金苗
韩波
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Suzhou Huachuang Special Material Co ltd
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Zhangjiagang Huacheng Special Materials Ltd By Share Ltd
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    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)

Abstract

The invention discloses a kind of quantifiable regular hexagon drawing die of relevant parameter of its entrance, including drawing mould body, the drawing forming hole through drawing mould body is offered on the drawing mould body, drawing forming hole includes entrance and sizing section;The sizing section includes:Respectively with corresponding six flat faces of six straight flanges of regular hexagon, it is facing each other a pair of flat face between spacing be a;Entrance includes:The introduction bevel of six flat face linkings corresponding to sizing section;If:The distance between outside edge line of a pair of introduction bevel facing each other is d1, then:The present invention is used for round tube, bar drawing into regular hexagon pipe, bar.

Description

A kind of regular hexagon drawing die
Technical field
The present invention relates to the drawing shaping mould in Metal Forming technical field, more particularly to by circular pipe or The molding drawing shaping mould of bar drawing (abbreviation drawing die).
Background technology
Drawing mould is the important fixture component of cold-drawn tubing and bar, has been widely used in the change of tubing and bar In the production process of footpath or/and deformation.By taking steel pipe as an example, cold drawn forming is carried out to steel pipe using drawing die, there is material use The features such as rate is high, energy consumption is low, properties of product are excellent, production efficiency is high, of low cost.It is molding by its drawing in drawing mould Tubing cross sectional shape is different, can be divided into circular drawing mould and special-shaped drawing mould;By lining core mould is whether there is in its drawing process, again Empty sinking drawing die (abbreviation empty sinking mould) and lining core drawing die (abbreviation lining core mould) can be divided into, lining core drawing die is by external mold and internal model phase Matching is common to complete cold-drawn.In drawing industry, the external mold of empty sinking drawing die or lining core drawing die is commonly refereed to as drawing die.
It is well known that if the openings of sizes of drawing die and the length setting of entrance are unreasonable, then tubing and bar Contact area between mould changes therewith, and the vertical and horizontal of metal are flowed there are unbalanced phenomena, so as to cause through it The molding hexagonal tube of drawing or rod it is second-rate, be mainly manifested in its straightness poor (there are different degrees of bending), wall Thickness ununiformity is even, size is unstable and the defects of surface irregularity, occurs steel pipe fracture and cracking phenomena in drawing process what is more.
At present, for regular hexagon drawing die also without unified design standard, the length and openings of sizes of its entrance Setting be all pipe, bar for each model by rule of thumb, in design, repeated multiple times experiment will be passed through, changed Into, the process tested again, ideal drawing die can be just obtained, this not only extends the process-cycle of mould, also add Production cost.
The content of the invention
The technical problems to be solved by the invention are:There is provided a kind of relevant parameter of its entrance quantifiable positive six side Shape drawing die.
In order to solve the above technical problems, the technical solution adopted in the present invention is:A kind of regular hexagon drawing die, including: Drawing mould body, the drawing forming hole through drawing mould body is offered on the drawing mould body, and drawing forming hole includes entrance Section and sizing section;The sizing section includes:Respectively with corresponding six flat faces of six straight flanges of regular hexagon, two two-phases To a pair of of flat face between spacing be a;The entrance includes:What six flat faces corresponding to sizing section were connected leads Enter inclined-plane;If:The distance between outside edge line of a pair of introduction bevel facing each other is d1, then:
As a preferred embodiment, in a kind of regular hexagon drawing die, the drawing mould body is drawn into Type hole is provided with outlet section on the outside of sizing section, the outlet section include six respectively flat face corresponding to positioning section be mutually connected Outward export inclined-plane.
As a preferred embodiment, in a kind of regular hexagon drawing die, the export inclined-plane of the outlet section with Angle of inclination beta is between 30~45 degree between the center line of the drawing mould body.
As a preferred embodiment, in a kind of regular hexagon drawing die, the outlet section accounts for entirely drawing The 8.17~9.17% of type hole are pulled into, the sizing section accounts for the 27.6~29.6% of whole drawing forming hole, and described enters Mouth section accounts for the 61.5~63.5% of whole drawing forming hole.
As a preferred embodiment, in a kind of regular hexagon drawing die, the shape of the drawing mould body is in Cylinder, its diameter d2≥2a。
As a preferred embodiment, in a kind of regular hexagon drawing die, six of the entrance import tiltedly Face is respectively arranged with circular arc chamfering.
As a preferred embodiment, in a kind of regular hexagon drawing die, the radius of the circular arc chamfering Between 4.5~5.5 millimeters.
The beneficial effects of the invention are as follows:Drawing die of the present invention, the relevant parameter of its entrance can quantify, from And cause its design and make all very simply, the process-cycle is so greatly lowered, saves production cost.It is in addition, logical Cross and drawing mould body is arranged to cylinder, and ensure that its outside diameter is more than two of distance between opposite a pair of of the flat face of sizing section Times, it ensure that the intensity of drawing die so that drawing quality has obtained reliable guarantee.
Brief description of the drawings
Fig. 1 is the structure diagram of hexagon drawing die of the present invention.
Fig. 2 is the schematic cross-sectional view in K-K directions in Fig. 1.
Reference numeral in Fig. 1 to Fig. 2 is:2nd, drawing mould body, 21, circular arc chamfering, 22, introduction bevel, I, entrance, IIth, sizing section, III, outlet section.
Embodiment
Below in conjunction with the accompanying drawings, a kind of drawing die for being used to produce regular hexagon pipe, rod of the present invention is described in detail Specific embodiment.
As depicted in figs. 1 and 2, a kind of regular hexagon drawing die of the present invention, including:Drawing mould body 2, the drawing The drawing forming hole through drawing mould body is offered on mould body 2, drawing forming hole includes entrance I, sizing section II and goes out Mouth section III;The sizing section II includes:Respectively with corresponding six flat faces of six straight flanges of regular hexagon, two-by-two relatively A pair of of flat face between spacing be a;The entrance I includes:What six flat faces corresponding to sizing section II were connected Introduction bevel 22;If:The distance between outside edge line of a pair of introduction bevel 22 facing each other is d1, then:
The outlet section III includes:Six outward leading of being mutually connected of corresponding flat face to positioning section II respectively Go out inclined-plane, angle of inclination beta is between 30~45 degree between the center line of the export inclined-plane and the drawing mould body 2;In the present embodiment In, the outlet section III accounts for the 8.17~9.17% of whole drawing forming hole, i.e. the length c of outlet section III accounts for drawing forming hole Length H 8.17~9.17%, the sizing section II accounts for the 27.6~29.6% of whole drawing forming hole, i.e. sizing section II length a accounts for the 27.6~29.6% of the length H of whole drawing forming hole, and the entrance I accounts for entirely being drawn into The length b of the 61.5~63.5% of type hole, i.e. entrance I accounts for the 61.5~63.5% of the length H of whole drawing forming hole;Institute The shape of drawing mould body is stated in cylinder, its diameter d2>=2a, that is, have a diameter larger than opposite a pair of of the flat face of sizing section II Between twice of distance;Six introduction bevels of the entrance I are respectively arranged with circular arc chamfering 21, its radius 4.5~ Between 5.5 millimeters..
In conclusion only presently preferred embodiments of the present invention, be not used for limiting the scope that the present invention is implemented, it is all according to The equivalent changes and modifications that shape, construction, feature and spirit described in scope of the invention as claimed are made, should all be included in this In the right of invention.

Claims (4)

1. a kind of regular hexagon drawing die, including:Drawing mould body, it is characterised in that:Offered on the drawing mould body Through the drawing forming hole of drawing mould body, drawing forming hole includes entrance and sizing section;
The sizing section includes:Respectively with corresponding six flat faces of six straight flanges of regular hexagon, facing each other one It is a to the spacing between flat face;
The entrance includes:The introduction bevel of six flat face linkings corresponding to sizing section;If:A pair facing each other The distance between outside edge line of introduction bevel is d1, then:
<mrow> <msub> <mi>d</mi> <mn>1</mn> </msub> <mo>=</mo> <msub> <mi>k</mi> <mn>1</mn> </msub> <mo>&amp;times;</mo> <mfrac> <msqrt> <mfrac> <msup> <mi>a</mi> <mn>2</mn> </msup> <mn>3</mn> </mfrac> </msqrt> <mi>&amp;pi;</mi> </mfrac> <mo>,</mo> <mn>7.2</mn> <mo>&amp;le;</mo> <msub> <mi>k</mi> <mn>1</mn> </msub> <mo>&amp;le;</mo> <mn>7.5</mn> <mo>;</mo> </mrow>
The shape of the drawing mould body is in cylinder, its diameter d2>=2a, the drawing forming hole of the drawing mould body is in sizing The outside of section is provided with outlet section, which includes six being flared out of being mutually connected of flat face corresponding to positioning section respectively Export inclined-plane, the outlet section accounts for the 8.17~9.17% of whole drawing forming hole, and the sizing section accounts for entirely The 27.6~29.6% of drawing forming hole, the entrance account for the 61.5~63.5% of whole drawing forming hole.
2. regular hexagon drawing die according to claim 1, it is characterised in that:The export inclined-plane of the outlet section with it is described Angle of inclination beta is between 30~45 degree between the center line of drawing mould body.
3. regular hexagon drawing die according to any one of claim 1 to 2, it is characterised in that:The six of the entrance A introduction bevel is respectively arranged with circular arc chamfering.
4. regular hexagon drawing die according to claim 3, it is characterised in that:The radius of the circular arc chamfering exists Between 4.5~5.5 millimeters.
CN201510662368.9A 2015-10-14 2015-10-14 A kind of regular hexagon drawing die Active CN105312344B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510662368.9A CN105312344B (en) 2015-10-14 2015-10-14 A kind of regular hexagon drawing die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510662368.9A CN105312344B (en) 2015-10-14 2015-10-14 A kind of regular hexagon drawing die

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CN105312344A CN105312344A (en) 2016-02-10
CN105312344B true CN105312344B (en) 2018-04-24

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109675946B (en) * 2018-12-28 2023-06-16 张家港华程特种材料股份有限公司 Regular octagon drawing die
CN113522999A (en) * 2021-08-30 2021-10-22 常州时创能源股份有限公司 Combined metal wire drawing die
CN113909320A (en) * 2021-09-08 2022-01-11 宁波金田铜业(集团)股份有限公司 Drawing die for hexagonal copper alloy bar wire

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1073379A (en) * 1992-03-30 1993-06-23 石家庄铝厂 Drawing die of aluminium clad steel wire and lubricated
JP2008290108A (en) * 2007-05-24 2008-12-04 Sumitomo Electric Ind Ltd Die for working electric wire and deformed electric wire
DE102009035151B4 (en) * 2009-07-29 2014-12-18 Thyssenkrupp Presta Teccenter Ag Camshaft and method for producing a camshaft main body
CN204448871U (en) * 2015-01-27 2015-07-08 应恩法 A kind of regular hexagon copper rod wire-drawing die

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Address after: Suzhou City, Jiangsu province 215611 village Tangqiao town of Zhangjiagang City Han Zhangjiagang Huacheng special materials Limited by Share Ltd

Applicant after: ZHANGJIAGANG HUACHENG SPECIAL STEEL CO.,LTD.

Address before: Suzhou City, Jiangsu province 215611 village Tangqiao town of Zhangjiagang City Han Zhangjiagang Huacheng special shaped steel tube Co.

Applicant before: ZHANGJIAGANG HUACHENG SPECIAL SHAPE TUBE Co.,Ltd.

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Inventor after: Chen Zilin

Inventor after: Han Tianzhou

Inventor after: Wu Kaichuan

Inventor after: Wang Zhizhang

Inventor after: Zhou Jinmiao

Inventor after: Han Bo

Inventor before: Zhou Jinmiao

Inventor before: Han Bo

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Address after: No. 1, Chuangxing Road, Fenghuang Town, Zhangjiagang City, Suzhou City, Jiangsu Province, 215600

Patentee after: Suzhou Huachuang special material Co.,Ltd.

Address before: Zhangjiagang Huacheng Special Materials Co., Ltd., Hanshan Village, Tangqiao Town, Zhangjiagang City, Suzhou City, Jiangsu Province, 215611

Patentee before: ZHANGJIAGANG HUACHENG SPECIAL STEEL CO.,LTD.

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