CN203343197U - Hole-shaped structural polycrystalline diamond drawing die - Google Patents
Hole-shaped structural polycrystalline diamond drawing die Download PDFInfo
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- CN203343197U CN203343197U CN 201320414340 CN201320414340U CN203343197U CN 203343197 U CN203343197 U CN 203343197U CN 201320414340 CN201320414340 CN 201320414340 CN 201320414340 U CN201320414340 U CN 201320414340U CN 203343197 U CN203343197 U CN 203343197U
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Abstract
The utility model discloses a hole-shaped structural polycrystalline diamond drawing die. A top opening of an inlet area of a die core is larger than a bottom opening, and a lubrication area is connected with the inlet area and a compression area respectively; a top opening of the compression area is larger than the bottom opening, the cross section of the compression area is in an isosceles trapezoid shape, and a compression angle of the compression area ranges from 8 to 9 degrees; a diameter sizing area is in a column shape and a top opening of an outlet area is smaller than the bottom opening. According to the hole-shaped structural polycrystalline diamond drawing die, stress on a working surface can be dispersed and the service life of the die can be prolonged due to reduction of the compression angle, the diameter sizing area is flat and straight and is in the absolute column shape, and diameter error of a machined wire is reduced to +/-0.0,002 mm.
Description
Technical field
The utility model relates to a kind of wire drawing die, in particular a kind of polycrystalline diamond wire drawing die of pass structure.
Background technology
For studying specific novel wire drawing die pass structure, make it meet the drawing condition of plated surface brass cutting high abrasion steel wire.While at first needing drawing, the cutting loading characteristic of high abrasion steel wire in compressional zone analyzed, and then obtains the relation between the stressed and compression angle of mould, and final analysis also obtains the optimal compression angle value and rational compressional zone length value.Whether the pass of wire drawing die is reasonable, directly has influence on the service life of mould.In core rod, the workspace compression angle has very important effect to mobility, axial compressive force and the tensile force of wire drawing metal, the unit pressure of die wall.Sizing area can make wire rod obtain stable, accurate shape and size.
(1) by the profile measurement to the wire drawing die endoporus, find, the wire drawing die compressional zone angle of domestic production is 12～20 °, and the compressional zone height accounts for 1/3 to 1/4 left and right of core rod height.Because the compressional zone angle is larger, be not easy to make lubricant and wire to form good coated state, between top, compressional zone and wire, form " angle of wedge effect ", can't form good lubrication pressure.Compressional zone is relatively short, and short and small due to compressional zone causes that in hole, effectively usable floor area is less, do not have a certain amount of lubricant of sufficiently long space storage to form " angle of wedge effect ", and lubricant is flow backwards out again, does not have due lubricant effect.
(2) sizing area is short and small and not obvious.Sizing area length is too short, causes very quick-wearing of mould sizing area, because the closer to the mould outlet end, the deformation velocity of metal is larger, and wearing and tearing herein are also larger, causes the sizing area intake section joined with compressional zone to wear and tear thereupon, thereby sizing area is shorter and shorter, finally cause wire diameter overproof.
(3) traditional wire drawing die process equipment is outmoded, and grinding method falls behind, and in very difficult assurance pass, the outline line of compressional zone and sizing area is by rectilinear(-al).If the compressional zone working face is not straight, form the orthodrome transition with lubricated district, on compressional zone, Partial angle increases, and the physical length of compressional zone shortens, and causes the Fast Wearing of nib.If sizing area is because the processing inaccuracy of mould causes its working face not straight, be that connection between compressional zone and sizing area is arc transition, the design length of calibrating strap has ground off many in process, while equaling also there is no the drawing wire, the arrival end of sizing area has been worn, during the drawing wire, wearing and tearing are to occur in minimum place, sizing area back segment aperture, cause the neck location rapid wearing of mould, and wire diameter is overproof thereupon.In a word, the reduction of the endoporus geometrical precision caused due to process equipment and processing technology, can't guarantee the linear structure of pass can cause the wearing and tearing aggravation of mould, reduces die life.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of polycrystalline diamond wire drawing die of pass structure is provided, and by processing rational pass, improves the service life of mould.
The utility model is achieved through the following technical solutions, and the core rod of wire drawing die described in the utility model comprises the inlet region from top to bottom be set in turn in core rod, lubricated district, compressional zone, sizing area and outlet area; The open top of described inlet region is greater than bottom opening, and lubricated district connects into respectively mouth region and compressional zone; The open top of described compressional zone is greater than bottom opening, and the cross section of compressional zone is isosceles trapezoid, and the compression angle of compressional zone is 8～9 °; Sizing area is cylindrical, and the open top of outlet area is less than bottom.
As one of optimal way of the present utility model, the height of described compressional zone is 1/3～1/4 of core rod height.
The height of described sizing area and diameter ratio are 1:4～1:5, and the height of sizing area is 30% of steel wire wire diameter.
A kind of processing method of polycrystalline diamond wire drawing die of pass structure comprises the following steps:
(1) first with laser, get nib;
(2) be manufactured into mouth region on ultrasonic wave grinder, being manufactured into the mouth region angle is 60 ± 10 °, manufacturing areas for export commodities after cleaning, and outlet area is processed as 30 ± 10 °;
(3) throw machined compression angle to 8～9 ° with line, line is stretching through nib, and adjustment equipment, after the compression angle of setting, starts line and throws machine, guarantees that institute's machining angle is close to straight line;
(4) throw the machined sizing area with line, the error of perpendicularity of sizing area is in 0.3 °, and then the manufacturing areas for export commodities angle is 60 ± 10 °.
The compressional zone of wire drawing die is called again workspace, and it is the most important part of whole nib, and its effect is to make metal carry out herein plastic deformation, obtains needed shape and size.For cutting steel wire solar panel wire drawing die, the cutting steel wire surface of drawing is coated with brass, requires the layer of brass of steel wire drawing Surface During not come off.When compression angle is too small, the contact area of blank and compressional zone increases, thereby increases the frictional force of wire and nib, and pulling capacity is increased.Yet, along with the increase of compression angle, although frictional force can reduce rapidly, shearing force can increase gradually, excessive compression angle can make the streamline turn sharp of wire in compressional zone, thereby cause additional shear strain to increase, causes mold breakdown.For the brass coating cutting steel wire in surface, when compression angle is 8～9 °, the cracking rate of mould is lower, and Steel Wire Surface brass quality is higher, and the drawing stress minimum is optimal compression angle angle.
Sizing area is the final tache that metal wire rod is determined final size, and sizing area adopts straight column structure, can form with compressional zone a kind of " trapezoidal " structure in junction, and sizing area is longer, and trapezium structure is longer.This trapezium structure can form a stable wear stage.Only have after trapezium structure is worn and torn fully, the aperture of core rod just can obviously increase, and this is to guarantee that wire drawing die realizes the key point of high life.Definite sizing area structure is the absolute circle cylindricality, and the error of perpendicularity of sizing area, in 0.3 °, is highly 30% of steel wire wire diameter.Through experimental verification, the narrow down to ± 0.0002mm of wire diameter error of the cutting steel wire of producing, and also the quality of surperficial layer of brass meets the requirements.
The utility model has the following advantages compared to existing technology: the utility model is controlled at 8～9 ° by compression angle, and the angle of compression angle reduces the stress on the face of can spreading the work, and improves die life; Sizing area is straight and it is absolute cylindrical to be, the error of perpendicularity of calibrating strap in 0.3 °, the narrow down to ± 0.0002mm of gauge or diameter of wire error of production; Adopt " orthoscopic " mill mould, polishing technology during Mould Machining.The compression angle inclined-plane is deflected into to axial location, guaranteed the linearity of this face.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below embodiment of the present utility model is elaborated; the present embodiment is implemented take technical solutions of the utility model under prerequisite; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, the core rod of the wire drawing die of the present embodiment comprises the inlet region 1 from top to bottom be set in turn in core rod, lubricated district 2, compressional zone 3, sizing area 4 and outlet area 5; The open top of described inlet region 1 is greater than bottom opening, and lubricated district 2 connects into respectively mouth region 1 and compressional zone 3; The open top of described compressional zone 3 is greater than bottom opening, and the cross section of compressional zone 3 is isosceles trapezoid, and the compression angle α of compressional zone 3 is 8～9 °; Sizing area 4 is cylindrical, and the open top of outlet area 5 is less than bottom.The safety angle β of outlet area 5 is 10～15 °.
In the present embodiment, the height of compressional zone 3 is 1/3 of core rod height.The height of sizing area 4 and diameter ratio are 1:4, and the height of sizing area 4 is 30% of steel wire wire diameter.
The processing method of the wire drawing die of the present embodiment comprises the following steps:
(1) first with laser, get nib;
(2) be manufactured into mouth region 1 on ultrasonic wave grinder, being manufactured into mouth region 1 angle is 60 ± 10 °, manufacturing areas for export commodities 5 after cleaning, and outlet area 5 is processed as 30 ± 10 °;
(3) throw machined compression angle to 8～9 ° with line, line is stretching through nib, and adjustment equipment, after the compression angle of setting, starts line and throws machine, guarantees that institute's machining angle is close to straight line;
(4) throw machined sizing area 4 with line, the error of perpendicularity of sizing area 4 is in 0.3 °, and then manufacturing areas for export commodities 5 angles are 60 ± 10 °.
Operation principle is: when mill is clamped on the chuck of High Rotation Speed, card grinding, with higher inverted speed rotation, is done linear reciprocating motion by certain angle simultaneously, and nib is ground.During grinding, card grinding is deflected into to the angle of machined surface, thereby can guarantee the linear structure of core rod, polishing process adopts similar method, and from grinding, comparing different is mould to be deflected into to the axial location of polish line, does linear reciprocating motion simultaneously.
Claims (3)
1. the polycrystalline diamond wire drawing die of a pass structure, is characterized in that, the core rod of described wire drawing die comprises the inlet region from top to bottom be set in turn in core rod, lubricated district, compressional zone, sizing area and outlet area; The open top of described inlet region is greater than bottom opening, and lubricated district connects into respectively mouth region and compressional zone; The open top of described compressional zone is greater than bottom opening, and the cross section of compressional zone is isosceles trapezoid, and the compression angle of compressional zone is 8～9 °; Sizing area is cylindrical, and the open top of outlet area is less than bottom.
2. the polycrystalline diamond wire drawing die of pass structure according to claim 1, is characterized in that, the height of described compressional zone is 1/3～1/4 of core rod height.
3. the polycrystalline diamond wire drawing die of pass structure according to claim 1, is characterized in that, the height of described sizing area and diameter ratio are 1:4～1:5, and the height of sizing area is 30% of steel wire wire diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320414340 CN203343197U (en) | 2013-07-11 | 2013-07-11 | Hole-shaped structural polycrystalline diamond drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320414340 CN203343197U (en) | 2013-07-11 | 2013-07-11 | Hole-shaped structural polycrystalline diamond drawing die |
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| CN203343197U true CN203343197U (en) | 2013-12-18 |
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| CN 201320414340 Expired - Lifetime CN203343197U (en) | 2013-07-11 | 2013-07-11 | Hole-shaped structural polycrystalline diamond drawing die |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302119A (en) * | 2013-07-11 | 2013-09-18 | 安徽振兴拉丝模有限公司 | Hole-shaped structural polycrystalline diamond drawing die and machining method thereof |
| CN107457541A (en) * | 2017-09-27 | 2017-12-12 | 杨沁玥 | A kind of horn mouth wire forming process |
| CN108213099A (en) * | 2018-03-16 | 2018-06-29 | 张家港市瑞特金属材料有限公司 | Diamond wire busbar wire-drawing die |
| CN108461218A (en) * | 2017-12-29 | 2018-08-28 | 铜陵精远线模有限责任公司 | A kind of corrosion-and high-temp-resistant glomerocryst twisted wire mold and its production technology |
| CN109692879A (en) * | 2018-12-24 | 2019-04-30 | 铜陵精远线模有限责任公司 | A kind of method of linear cutter diamond wire-drawing die |
| CN109702033A (en) * | 2018-12-28 | 2019-05-03 | 芜湖楚江合金铜材有限公司 | A kind of production method of video brass wire |
| CN113600625A (en) * | 2021-06-28 | 2021-11-05 | 安徽楚江高新电材有限公司 | Process optimization method for copper wire continuous drawing die |
| CN113600625B (en) * | 2021-06-28 | 2024-06-07 | 安徽楚江高新电材有限公司 | Copper wire continuous drawing die process optimization method |
-
2013
- 2013-07-11 CN CN 201320414340 patent/CN203343197U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302119A (en) * | 2013-07-11 | 2013-09-18 | 安徽振兴拉丝模有限公司 | Hole-shaped structural polycrystalline diamond drawing die and machining method thereof |
| CN107457541A (en) * | 2017-09-27 | 2017-12-12 | 杨沁玥 | A kind of horn mouth wire forming process |
| CN108461218A (en) * | 2017-12-29 | 2018-08-28 | 铜陵精远线模有限责任公司 | A kind of corrosion-and high-temp-resistant glomerocryst twisted wire mold and its production technology |
| CN108213099A (en) * | 2018-03-16 | 2018-06-29 | 张家港市瑞特金属材料有限公司 | Diamond wire busbar wire-drawing die |
| CN109692879A (en) * | 2018-12-24 | 2019-04-30 | 铜陵精远线模有限责任公司 | A kind of method of linear cutter diamond wire-drawing die |
| CN109702033A (en) * | 2018-12-28 | 2019-05-03 | 芜湖楚江合金铜材有限公司 | A kind of production method of video brass wire |
| CN113600625A (en) * | 2021-06-28 | 2021-11-05 | 安徽楚江高新电材有限公司 | Process optimization method for copper wire continuous drawing die |
| CN113600625B (en) * | 2021-06-28 | 2024-06-07 | 安徽楚江高新电材有限公司 | Copper wire continuous drawing die process optimization method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
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| CX01 | Expiry of patent term |