CN210280217U - Wire drawing die and wire drawing machine - Google Patents
Wire drawing die and wire drawing machine Download PDFInfo
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- CN210280217U CN210280217U CN201920682321.2U CN201920682321U CN210280217U CN 210280217 U CN210280217 U CN 210280217U CN 201920682321 U CN201920682321 U CN 201920682321U CN 210280217 U CN210280217 U CN 210280217U
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Abstract
The utility model relates to a wire drawing equipment technical field, concretely relates to wire drawing mould, including relatively fixed's first mould and second mould, be provided with the aperture on the first mould from the first wire drawing hole of big to little shrink, be provided with the aperture on the second mould and follow big to little shrink earlier, the second wire drawing hole of expansion from beginning to end afterwards, wherein, the exit end diameter in first wire drawing hole is less than the entry end diameter in second wire drawing hole, and is greater than the minimum diameter in second wire drawing hole. Through the combined use of first mould and second mould, realized going on in step of twice wire drawing process, the copper clad aluminum wire is behind first wire drawing hole, and the entrance that the second wire drawing hole is the loudspeaker form gives the certain elasticity recovery space of copper clad aluminum wire for the elastic deformation of copper clad aluminum wire obtains stably here, and the aperture footpath section that gets into the second wire drawing hole later receives the extrusion for the second time and the diameter further reduces, thereby accomplishes going on of twice wire drawing operation. The utility model discloses in, still ask for protection a wire drawing machine.
Description
Technical Field
The utility model relates to a wire drawing equipment technical field, concretely relates to wire drawing mould and wire drawing machine.
Background
With the rapid development of technologies in the fields of communication, electronics and the like, the demand of copper is increasing day by day, as a non-renewable natural resource on the earth, the storage capacity of copper is decreasing day by day like mineral reserves of other metals, energy sources and the like under the continuous exploitation and use of human beings, the price of copper inevitably rises continuously due to the absolute change of supply and demand relations, and the problems force the related fields to actively seek new conductor materials to replace copper wires. The copper-clad aluminum wire has the advantages of good electrical conductivity, high strength, good toughness of copper, small density of aluminum, easy processing and low production cost, thereby becoming the best choice for replacing a pure copper wire. At present, the preparation process of the copper-clad aluminum wire in China basically adopts a solid phase combination method, and finally forms the copper-clad aluminum wire with firmly combined interface through diffusion heat treatment.
In order to obtain a product with the diameter meeting the final requirement, an aluminum wire coated with a copper strip needs to be drawn, and the diameter change rate of the drawn wire and the surface quality of the final wire are limited due to the structural singleness of a drawing die at present.
In view of the above problems, the designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is matched with the application of scholars to actively carry out research and innovation, so as to create a wire drawing die and a wire drawing machine, and the wire drawing die and the wire drawing machine are more practical.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wire drawing mould makes copper clad aluminum wire obtain middle buffering at the in-process of wire drawing through the combination of first mould and second mould, has improved the rate of change of diameter, and through the pultrusion of multichannel, the deformation rate of having reduced the single track has guaranteed the final surface quality of product simultaneously. Simultaneously the utility model discloses in still ask protection wire drawing machine.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a wire drawing die comprises a first die and a second die which are fixed relatively, wherein a first wire drawing hole with a diameter from large to small is formed in the first die, a second wire drawing hole with a diameter from large to small and then expanded from small to large is formed in the second die, and the diameter of the outlet end of the first wire drawing hole is smaller than the diameter of the inlet end of the second wire drawing hole and larger than the diameter of the smallest part of the second wire drawing hole.
Further, the second die is fixedly connected with the wire drawing equipment main body, and a magnetic layer is arranged on the radial end face attached to the first die or the radial end face attached to the second die and the first die and is used for magnetically connecting the first die and the second die.
Further, the first mold end is provided with a cavity structure for partially coating the second mold end.
Further, the first mould tip is provided with and is used for right the second mould tip carries out the cavity structures of local cladding, just be provided with the linoleum in the cavity structures, the center department of linoleum is provided with the hole site, the diameter of hole site is less than the exit end diameter of first wire drawing hole, just the circumference of hole site is provided with a plurality of radial incisions.
Furthermore, an oil hole is formed in the side wall of the cavity structure and is blocked by a plug.
Further, the first wire drawing hole comprises a first curved surface open section, a second taper hole section and a third taper hole section;
the curvature of the first curved surface open section protrudes into the hole, and the slope of the side wall of the second conical hole section is larger than that of the side wall of the third conical hole section.
Further, the second wire drawing hole is provided with a cylinder section, and the diameter of the cylinder section is the minimum diameter of the second wire drawing hole.
A wire drawing machine adopts the wire drawing die to perform wire drawing.
Through the technical scheme of the utility model, can realize following technological effect:
the utility model discloses in, use through the combination of first mould and second mould, the synchronous of twice wire drawing process has been realized going on, wherein, copper clad aluminum wire is at the in-process through first wire drawing hole, aperture setting through becoming shrink form, make the great copper clad aluminum wire of diameter receive the extrusion and the diameter reduces gradually here, after the exit end of copper clad aluminum wire from first mould is drawn forth, the entrance that the second wire drawing hole is loudspeaker form gives the certain elasticity of copper clad aluminum wire and resumes the space, make the elastic deformation of copper clad aluminum wire obtain stably here, the aperture section that gets into the second wire drawing hole afterwards receives the second extrusion and the diameter further reduces, thereby accomplish going on of twice wire drawing operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a first mold;
FIG. 2 is a cross-sectional view of a first mold;
FIG. 3 is a schematic structural view of a second mold;
FIG. 4 is a cross-sectional view of a second mold;
FIG. 5 is a combined cross-sectional view of a first mold and a second mold;
FIG. 6 is a schematic view of the structure of a linoleum;
description of the drawings: the device comprises a first wire drawing hole 1, a first curved surface open section 11, a second conical section 12, a third conical section 13, a second wire drawing hole 2, a cylindrical section 21, a felt 3 and hole sites 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
As shown in fig. 1 to 4, a wire drawing die comprises a first die and a second die which are fixed relatively, wherein the first die is provided with a first wire drawing hole 1 with a diameter from large to small, the second die is provided with a second wire drawing hole 2 with a diameter from large to small, and then the second wire drawing hole expands from small to large, wherein the diameter of the outlet end of the first wire drawing hole 1 is smaller than the diameter of the inlet end of the second wire drawing hole and larger than the diameter of the minimum position of the second wire drawing hole.
The utility model discloses in, use through the combination of first mould and second mould, the synchronous of twice wire drawing process has been realized going on, wherein, copper clad aluminum wire is at the in-process through first wire drawing hole 1, aperture setting through becoming shrink form, make the great copper clad aluminum wire of diameter receive the extrusion and the diameter reduces gradually here, after the exit end of copper clad aluminum wire from first mould is drawn forth, the entrance that second wire drawing hole 2 is loudspeaker form gives the certain elasticity of copper clad aluminum wire and resumes the space, make the elastic deformation of copper clad aluminum wire obtain stably here, the aperture footpath section that gets into second wire drawing hole 2 afterwards receives the extrusion of second time and the diameter further reduces, thereby accomplish going on of twice wire drawing operation.
Preferably, in the above embodiment, the second mold is fixedly connected to the drawing apparatus main body, and a magnetic layer is disposed on a radial end face where the first mold is attached to the second mold, or a radial end face where the second mold is attached to the first mold, for magnetically connecting the first mold and the second mold.
The utility model discloses an in-process that wire drawing mould used, the trend of copper clad aluminum wire is shown as the arrow in figure 5, and the copper clad aluminum wire passes through the lateral wall and applys the extruded power to the second mould to first mould, consequently under the fixed condition of second mould, first mould can obtain relatively stable power, therefore the setting of magnetic layer is enough can guarantee the stability of relative position between the two. Specifically, the magnetic layer can be fixed by means of pasting or by means of a connecting piece or other structures.
Preferably, the first mold end is provided with a cavity structure for partially covering the second mold end. Through the local cladding of cavity structures, stability is obtained radially between two moulds, and the stability between the two is further increased on the basis of the magnetic layer, so that the final product quality is ensured.
Example two
As shown in fig. 1 to 4, a wire drawing die comprises a first die and a second die which are fixed relatively, wherein the first die is provided with a first wire drawing hole 1 with a diameter from large to small, the second die is provided with a second wire drawing hole 2 with a diameter from large to small, and then the second wire drawing hole expands from small to large, wherein the diameter of the outlet end of the first wire drawing hole 1 is smaller than the diameter of the inlet end of the second wire drawing hole and larger than the diameter of the minimum position of the second wire drawing hole.
As a preferable example of the above embodiment, as shown in fig. 6, the first mold end is provided with a cavity structure for partially coating the second mold end, a felt 3 is disposed in the cavity structure, a hole 31 is disposed at the center of the felt 3, the diameter of the hole 31 is smaller than the diameter of the outlet end of the first wire drawing hole 1, and a plurality of radial cuts are disposed on the circumference of the hole 31.
In this embodiment, because the diameter rate of change of copper clad aluminum wire is less in first mould, simultaneously because the product still need carry out the secondary wire drawing, consequently lower to surface quality requirement, need not the setting of lubricating oil, but when the process secondary is tensile, because the surface temperature of wire rod is higher this moment, there is less defect easily, in order to avoid above-mentioned defect to cause the influence to the final quality of wire rod, consequently provide lubrication for the surface of wire rod through the linoleum, thereby guarantee that the wire rod accessible lubricated setting reduces the damage on surface when the second mould, wherein the utility model discloses a wire rod speed at rear portion need have the difference before the wire drawing mould, thereby guarantee the tensile homogeneity of wire rod. The radial notches are arranged, so that the felt 3 obtains a larger contact area with the surface of the wire rod through local bending, and the final lubricating effect is ensured.
In this embodiment, the stress conditions of the first mold and the second mold are as described in the first embodiment, so that the cavity structure can sufficiently ensure the stability and reliability of the connection between the first mold and the second mold, and in order to further ensure the stability of the product quality, the first mold and the second mold can be connected through a proper interference fit.
Preferably, the side wall of the cavity structure is provided with an oil hole, and the oil hole is sealed by a plug 4. Through the setting of oilhole, can remove end cap 4 and supplementary lubricating oil, lubricating oil supplements the back of accomplishing, and accessible end cap 4 carries out the shutoff, avoids the entering of dust.
EXAMPLE III
As shown in fig. 1 to 4, a wire drawing die comprises a first die and a second die which are fixed relatively, wherein the first die is provided with a first wire drawing hole 1 with a diameter from large to small, the second die is provided with a second wire drawing hole 2 with a diameter from large to small, and then the second wire drawing hole expands from small to large, wherein the diameter of the outlet end of the first wire drawing hole 1 is smaller than the diameter of the inlet end of the second wire drawing hole and larger than the diameter of the minimum position of the second wire drawing hole.
The first wire drawing hole 1 comprises a first curved surface open section 11, a second conical hole section 12 and a third conical hole section 13; the curvature of the first curved surface open section 11 protrudes into the hole, and the slope of the side wall of the second conical section 12 is larger than that of the third conical section 13. When specifically carrying out the wire drawing operation, the open section of first curved surface 11 is used for carrying out comparatively smooth compression to the wire rod material, and the compression ratio here is less, mainly makes the material adapt to the trend of this kind of deformation, and the setting of second taper hole section 12 is mainly used preliminary compression design afterwards, and the compression volume here is great, for wire drawing shaping's most main region, finalizes the design through third taper hole section 13 at last, and the slope here can reduce to being similar to the cylinder structure, thereby makes the wire rod structure that two parts compressed above obtain stably.
The second wire drawing hole 2 is provided with a cylindrical section 21, and the diameter of the cylindrical section 21 is the smallest diameter of the second wire drawing hole 2.
A wire drawing machine adopts the wire drawing die in the first embodiment to the third embodiment to perform wire drawing.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A wire drawing die is characterized by comprising a first die and a second die which are fixed relatively, wherein a first wire drawing hole (1) with the diameter from large to small is formed in the first die, and a second wire drawing hole (2) with the diameter from large to small and then small to large is formed in the second die, wherein the diameter of an outlet end of the first wire drawing hole (1) is smaller than the diameter of an inlet end of the second wire drawing hole and larger than the diameter of the smallest part of the second wire drawing hole.
2. The wire drawing die according to claim 1, wherein the second die is fixedly connected with the wire drawing device body, and a magnetic layer is arranged on a radial end face attached to the first die or a radial end face attached to the second die and the first die and is used for magnetically connecting the first die and the second die.
3. A wiredrawing die as claimed in claim 2, wherein said first die end is provided with a cavity structure for partially cladding said second die end.
4. The wire drawing die as claimed in claim 1, wherein the first die end is provided with a cavity structure for partially coating the second die end, a felt (3) is arranged in the cavity structure, a hole site (31) is arranged at the center of the felt (3), the diameter of the hole site (31) is smaller than the diameter of the outlet end of the first wire drawing hole (1), and a plurality of radial notches are arranged on the circumference of the hole site (31).
5. The drawing die according to claim 4, characterized in that the side wall of the cavity structure is provided with an oil hole, and the oil hole is blocked by a plug (4).
6. Drawing die according to claim 1, characterized in that the first drawing hole (1) comprises a first curved open section (11), a second tapered section (12) and a third tapered section (13);
the curvature of the first curved surface open section (11) protrudes into the hole, and the slope of the side wall of the second conical hole section (12) is larger than that of the side wall of the third conical hole section (13).
7. Drawing die according to claim 1 or 6, characterized in that the second drawing hole (2) is provided with a cylindrical section (21), the diameter of the cylindrical section (21) being the smallest diameter of the second drawing hole (2).
8. A wire drawing machine characterized by carrying out wire drawing by using the wire drawing die according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682321.2U CN210280217U (en) | 2019-05-13 | 2019-05-13 | Wire drawing die and wire drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920682321.2U CN210280217U (en) | 2019-05-13 | 2019-05-13 | Wire drawing die and wire drawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210280217U true CN210280217U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920682321.2U Active CN210280217U (en) | 2019-05-13 | 2019-05-13 | Wire drawing die and wire drawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210280217U (en) |
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2019
- 2019-05-13 CN CN201920682321.2U patent/CN210280217U/en active Active
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