CN221361929U - Special-shaped wire drawing die - Google Patents
Special-shaped wire drawing die Download PDFInfo
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- CN221361929U CN221361929U CN202323299975.2U CN202323299975U CN221361929U CN 221361929 U CN221361929 U CN 221361929U CN 202323299975 U CN202323299975 U CN 202323299975U CN 221361929 U CN221361929 U CN 221361929U
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- steel wire
- shaped steel
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- 238000005491 wire drawing Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 70
- 239000010959 steel Substances 0.000 claims abstract description 70
- 230000006835 compression Effects 0.000 claims abstract description 34
- 238000007906 compression Methods 0.000 claims abstract description 34
- 238000004513 sizing Methods 0.000 claims abstract description 14
- 238000005461 lubrication Methods 0.000 claims abstract description 10
- 230000008520 organization Effects 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Metal Extraction Processes (AREA)
Abstract
The utility model relates to a special-shaped wire-drawing die, which is internally provided with a die core, wherein the die core is arranged in a steel sleeve, the center of the die core is provided with a through hole, the through hole is sequentially provided with an inlet area, a lubrication area, a compression area, a sizing area and an outlet area from front to back, a horn-shaped wire is formed, a special-shaped steel wire enters the compression area from the inlet area and the lubrication area to deform, the special-shaped steel wire exits from the outlet area after sizing is finished in the sizing area, the vertical section of the through hole at the compression area is trapezoid, the cross section of the through hole is polygonal, the angle of the polygon is consistent with the shape of each section of the special-shaped steel wire, and each section of the special-shaped steel wire is contacted with the inner wall of the through hole of the compression area. The inner wall of the through hole of the compression zone of the special-shaped wire drawing die is designed to be provided with a plurality of holes with different angle sections, the inner wall of the through hole is in contact with each different section of the special-shaped steel wire, and the hole design ensures that the special-shaped steel wire can be uniformly deformed in the die, and the organization performance of the special-shaped steel wire is uniform and consistent.
Description
Technical Field
The utility model relates to a wire drawing die, in particular to a wire drawing die for producing a special-shaped steel wire, and belongs to the technical field of special-shaped steel wire production.
Background
The special-shaped steel wire generally refers to a steel wire with a non-circular cross section shape, and has very wide application, such as a steel wire for a mechanical spring, a steel wire for a piston ring for an automobile, a steel wire for a clamp spring for a bearing, a special alloy steel wire for aerospace military, and the like. The special-shaped steel wire has square, trapezoid, rectangle, triangle, semicircle and other common shapes, and also has various irregular shapes. The production materials include common carbon steel, spring steel, stainless steel, various nonferrous metals and the like. The production mode of special-shaped steel wire is mainly rolling, die drawing, roller drawing, rolling and drawing compounding, wherein the special-shaped steel wire produced by the die drawing mode in the final forming process has the advantages of accurate product shape, small size deviation, stable integral whole strip property and the like.
The drawing die for producing special-shaped steel wire by die drawing mode is similar to the drawing die for producing round steel wire in structure, and its hole pattern is divided into inlet zone, lubrication zone, compression (working) zone, sizing zone and outlet zone. Wherein the compression zone is the most important part of the whole mould hole design and is the main area of plastic deformation of the steel wire. According to the existing drawing theory, when the angle of the compression area is smaller, the contact surface between the steel wire and the die becomes larger when the steel wire is deformed, so that the friction resistance of drawing can be increased, and the drawing force can be increased; when the angle of the compression area is bigger, the contact surface between the steel wire and the die becomes smaller when the steel wire is deformed, so that the deformation amount of the steel wire is increased, the toughness of the steel wire is reduced, and even the conditions of cracking, wire breakage and the like occur. Therefore, in the design of the hole pattern of the die, the optimal angle of the compression area can be determined according to comprehensive consideration of the steel wire performance, the drawing efficiency, the die life and the like.
But there is a difference in the deformation of the profiled wire and the round wire in the die at the time of drawing. After the angle of the compression area of the die is determined, when the round steel wire deforms in the die, the deformation rate of each contact surface of the steel wire and the die is the same, so that the tissue performance of the finished steel wire is uniform and consistent. The deformed steel wire has inconsistent section shape, and when deformed in a die, the deformation of different surfaces of the deformed steel wire is inconsistent, so that the surface hardness of the deformed steel wire with small deformation is low, the surface hardness of the deformed steel wire with large deformation is high, the overall performance of the deformed steel wire is further affected, and even the conditions such as fracture and the like can be caused.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides the special-shaped wire drawing die which can realize uniform deformation and ensure uniform and consistent special-shaped steel wire organization performance.
The purpose of the utility model is realized in the following way:
A special-shaped wire-drawing die is provided with a die core, the die core is arranged in a steel sleeve, the center of the die core is provided with a through hole, the through hole is sequentially an inlet area, a lubrication area, a compression area, a sizing area and an outlet area from front to back, a horn-shaped is formed, a special-shaped steel wire enters the compression area from the inlet area and the lubrication area to deform, the special-shaped steel wire comes out of the outlet area after sizing is completed in the sizing area, the vertical section of the through hole at the compression area is trapezoid, the cross section of the through hole is polygonal, the angle of the polygon is consistent with the shape of each section of the special-shaped steel wire, and each section of the special-shaped steel wire is in contact with the inner wall of the through hole of the compression area.
The inner wall of the through hole of the compression zone has different angles with the contact surfaces of different sections of the special-shaped steel wire.
At least two or more different angles are arranged on the contact surface between the inner wall of the through hole of the compression area and the special-shaped steel wire.
The utility model has the following beneficial effects:
The inner wall of the through hole of the compression zone of the special-shaped wire drawing die is designed to be provided with a plurality of holes with different angle sections, the inner wall of the through hole is in contact with each different section of the special-shaped steel wire, and the hole design ensures that the special-shaped steel wire can be uniformly deformed in the die, and the organization performance of the special-shaped steel wire is uniform and consistent.
Drawings
FIG. 1 is a schematic diagram of a profiled wire drawing die of the present utility model.
Fig. 2 is a schematic vertical cross-section of the through hole in the core of fig. 1.
Fig. 3 is a schematic cross-sectional view of the compression zone of fig. 1.
Fig. 4 is a schematic view of a compressed angle of the inner wall of the through hole in fig. 3.
Fig. 5 is a schematic view of another compression angle of the inner wall of the through hole in fig. 3.
Wherein: the die core 1, the steel sleeve 2, the through hole 3, the inlet area 4, the lubrication area 5, the compression area 6, the sizing area 7, the outlet area 8 and the inner wall 9 of the through hole.
Detailed Description
Referring to fig. 1 and 2, the utility model relates to a special-shaped wire-drawing die, a die core 1 is arranged in the special-shaped wire-drawing die, the die core 1 is arranged in a steel sleeve 2, a through hole 3 is formed in the center of the die core 1, the through hole 3 sequentially comprises an inlet area 4, a lubrication area 5, a compression area 6, a sizing area 7 and an outlet area 8 from front to back, a horn mouth shape is formed, special-shaped steel wires enter the compression area 6 from the inlet area 4 and the lubrication area 5 to deform, and the special-shaped steel wires exit from the outlet area 8 after sizing is finished in the sizing area 7.
As shown in fig. 3, the compression area 6 is also a working area, the vertical section of the through hole at the compression area 6 is trapezoidal, the cross section of the through hole is polygonal, the angle of the polygon can be adjusted according to the section shape of different special-shaped steel wires, namely, in the same special-shaped wire drawing die, the angle of the inner wall 9 of the through hole can be adjusted according to the section shape of the special-shaped steel wires, so that each surface of the special-shaped steel wires is contacted with the inner wall 9 of the through hole of the compression area 6.
The contact surfaces of the inner wall 9 of the through hole and different sections of the special-shaped steel wire have different angles, and at least two or more than two different angles are provided. According to different shapes of each section of the special-shaped steel wire, the inner wall 9 of the through hole is adjusted to be the corresponding optimal angle, so that plastic deformation of each section of the special-shaped steel wire can be uniformly and consistently achieved in a special-shaped die, and the structural performance of the special-shaped steel wire is uniformly and consistently achieved.
For example, when a rolling and drawing composite mode is adopted to produce a rectangular steel wire with the diameter of 4.00 mm, firstly rolling a round steel wire into a flat steel wire with the diameter of 4.40 mm and the diameter of 10.40mm, and then producing a finished rectangular steel wire by a special-shaped die drawing mode, wherein the die hole structure is shown in figure 3. In the hole pattern, the compression angle of the die corresponding to the 9mm surface is 9.5 degrees, as shown in fig. 4; the die compression angle for the 4mm face was 4 degrees as shown in fig. 5. The trapezoid, semicircular, irregular special-shaped steel wires and the like all adopt similar technologies, and the design of the upper hole type of the special-shaped die is suitable for dies with different specifications and materials.
Claims (3)
1. A special-shaped wire drawing die, which is characterized in that: the special-shaped wire drawing die is provided with a die core, the die core is arranged in a steel sleeve, the center of the die core is provided with a through hole, the through hole is sequentially an inlet area, a lubrication area, a compression area, a sizing area and an outlet area from front to back, a bell mouth shape is formed, a special-shaped steel wire enters the compression area from the inlet area and the lubrication area to deform, the special-shaped steel wire comes out of the outlet area after sizing is completed in the sizing area, the vertical section of the through hole at the compression area is trapezoid, the cross section of the through hole is polygonal, the angle of the polygon is consistent with the shape of each section of the special-shaped steel wire, and each section of the special-shaped steel wire is in contact with the inner wall of the through hole of the compression area.
2. A profiled wire drawing die as defined in claim 1, wherein: the inner wall of the through hole of the compression zone has different angles with the contact surfaces of different sections of the special-shaped steel wire.
3. A profiled wire drawing die as defined in claim 2, wherein: at least two or more different angles are arranged on the contact surface between the inner wall of the through hole of the compression area and the special-shaped steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323299975.2U CN221361929U (en) | 2023-12-05 | 2023-12-05 | Special-shaped wire drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323299975.2U CN221361929U (en) | 2023-12-05 | 2023-12-05 | Special-shaped wire drawing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221361929U true CN221361929U (en) | 2024-07-19 |
Family
ID=91889875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323299975.2U Active CN221361929U (en) | 2023-12-05 | 2023-12-05 | Special-shaped wire drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221361929U (en) |
-
2023
- 2023-12-05 CN CN202323299975.2U patent/CN221361929U/en active Active
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