CN111804751A - Die of continuous extrusion machine for silver metal and continuous extrusion machine - Google Patents
Die of continuous extrusion machine for silver metal and continuous extrusion machine Download PDFInfo
- Publication number
- CN111804751A CN111804751A CN202010751694.8A CN202010751694A CN111804751A CN 111804751 A CN111804751 A CN 111804751A CN 202010751694 A CN202010751694 A CN 202010751694A CN 111804751 A CN111804751 A CN 111804751A
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- Prior art keywords
- die
- extrusion
- convex block
- diversion
- silver metal
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000001125 extrusion Methods 0.000 title claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000007493 shaping process Methods 0.000 claims abstract description 18
- 229910052709 silver Inorganic materials 0.000 claims description 24
- 239000004332 silver Substances 0.000 claims description 24
- 238000005520 cutting process Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000005056 compaction Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 239000007769 metal material Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention provides a die for a silver metal continuous extruding machine and the continuous extruding machine, wherein the die comprises a die body, the inner side wall of the die body is provided with a diversion convex block, the diversion convex block is in a triangular shape, a first corner of the diversion convex block is positioned in the middle of a long edge of a forming through hole, and two sides of the first corner of the diversion convex block are provided with diversion convex edges which incline towards the directions of two short edges of the forming through hole respectively. The shaping through-hole includes shaping entry end and extrusion exit end, defines the mould body is close to extrusion exit tip and is divided into extrusion portion, the water conservancy diversion lug place inside wall of extrusion portion along extrude mouthful end direction progressively slope to with water conservancy diversion lug parallel and level. Through the setting of the water conservancy diversion lug that carries out the triangle-shaped shape in the shaping through-hole, can succeed in the shaping through-hole with silver metal along two water conservancy diversion chimbs abundant water conservancy diversion diffusion on length direction to when making silver metal extruded, the stable in shape just with extrude export unanimous, metal density is even.
Description
Technical Field
The invention relates to the field of metal forming machines, in particular to a die of a continuous extruding machine for silver metal and the continuous extruding machine.
Background
The silver metal has good ductility, conductivity and heat conductivity, so the silver metal is greatly needed by the processing market, and for mass production, the market often needs plate-shaped silver bars with the same standard shape, size and uniform density.
The continuous extruder generally extrudes strip-shaped metal and the material blocking block through the matching of the extrusion wheel and the compaction wheel, the temperature is raised by utilizing the heat generated by extrusion friction, the metal enters an extrusion cavity outlet after being deformed at high temperature and flows into a die, the preset strip-shaped, row-shaped, strip-shaped and other continuous shapes are manufactured according to the structural shape of the die, and the influence of the surface defect of the raw material and the mechanical damage on the product quality can be eliminated because the forming process is hot extrusion plastic forming, and the defects of warping, burrs and the like which are easy to appear in the traditional process method can not be generated on the surface of the product.
In the practical application of the continuous extruder, the continuous extruder is mainly used for extruding and forming the copper bar, and the formed copper bar has a smooth surface, no burrs, a stable shape and uniform density. However, if the silver bar is directly produced by the continuous extruder, the silver metal is not consistent with copper in texture and flows out from the middle part when the silver metal is not molded to a predetermined width, so that the cross-sectional shape of the finished silver bar is unstable and the density is not uniform, and the production requirement cannot be met.
Disclosure of Invention
The invention provides a die of a continuous extruding machine for silver metal and the continuous extruding machine, and aims to solve the problems of non-uniform density and low production efficiency of a silver discharge product.
The invention is realized by the following steps:
the utility model provides a mould for silver metal's continuous extrusion machine, includes the mould body, set up rectangle shaping through-hole in the mould body.
The inside wall of mould body is equipped with the water conservancy diversion lug, the water conservancy diversion lug is three horn shapes, just the first angle of water conservancy diversion lug is located the middle part position on long limit of shaping through-hole, the first angle both sides of water conservancy diversion lug have respectively towards the water conservancy diversion chimb of two minor face directions slopes of shaping through-hole.
The shaping through-hole includes shaping entry end and extrusion exit end, defines the mould body is close to extrusion exit tip and is divided into extrusion portion, the water conservancy diversion lug place inside wall of extrusion portion along extrude mouthful end direction progressively slope to with water conservancy diversion lug parallel and level.
In the preferred embodiment of the present invention:
as a one-step improvement, the number of the diversion convex blocks is two, and the diversion convex blocks are respectively and correspondingly arranged on the inner side walls of the die body on the two long sides of the forming through hole.
As a one-step improvement, the first corner of the diversion bump is arranged close to the molding inlet end.
As a one-step improvement, four inner side wall surfaces at the tail end of the extrusion part are arranged in parallel in pairs.
As a one-step improvement, the die body comprises a forming pad and an extrusion die which are arranged adjacently up and down, the forming pad is provided with an upper convex block of the diversion convex block, and the extrusion die is provided with a lower convex block which is continuous with the upper convex block in the diversion convex block.
As a further improvement, the forming pad comprises a left pad block and a right pad block which can be separated from each other.
As a one-step improvement, the included angle of the first angle is 60-120 degrees.
The invention also provides a continuous extruder which comprises the extrusion wheel, the compaction wheel, the material blocking block, the extrusion cavity and the die, wherein the die is arranged at the outlet position of the extrusion cavity.
As a further improvement, the continuous extrusion machine further comprises a conveying device positioned at the extrusion opening end of the die, and a cutting mechanism arranged on the conveying device and used for cutting the silver row extruded from the die into silver row sections with unit length.
The invention has the beneficial effects that: the die for the silver metal continuous extruder is specially used for silver which is a metal material with too soft property and too good fluidity after being heated or a metal material with the property similar to silver. Through the setting of the water conservancy diversion lug that carries out the triangle-shaped shape in the shaping through-hole, can succeed in the shaping through-hole with silver metal along two water conservancy diversion chimbs abundant water conservancy diversion diffusion on length direction to when making silver metal extruded, the stable in shape just with extrude export unanimous, metal density is even. Thereby avoiding the silver metal from being extruded and formed into a product with unstable cross section shape and non-uniform density by the traditional die or the dumbbell-shaped through hole die.
Furthermore, the continuous extrusion machine provided by the invention also comprises a cutting mechanism, and the silver row is cut into silver row sections with unit length by the cutting mechanism, so that the effect of mass production of the silver metal standard blocks is achieved. The production cost of the existing silver metal block is reduced, the production efficiency is improved, and the standardized market application of the silver metal block is facilitated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic top view of a die for a continuous silver metal extruder according to an embodiment of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view in section taken along the line B-B in FIG. 1;
FIG. 4 is a schematic structural view of the extrusion die of FIG. 1;
fig. 5 is a schematic view of the forming mat of fig. 1.
Icon:
the die comprises a die body 1, a forming pad 11, an extrusion die 12, a left cushion block 13, a right cushion block 14, a forming through hole 2, a diversion bump 3, an upper bump 31, a lower bump 32 and a first corner 33.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1 to 5, a die for a continuous extrusion press of silver metal includes a die body 1. Rectangular forming through holes 2 are formed in the die body 1, and the forming through holes 2 comprise forming inlet ends and extrusion outlet ends.
The upper end and the lower end of the forming through hole 2 shown in fig. 3 are respectively a forming inlet end and an extrusion outlet end, the forming inlet end is used for receiving the silver metal material flowing out from the extrusion cavity of the continuous extruder, and the extrusion outlet end is used for extruding the silver metal material passing through the forming through hole 2 to be transported out in a silver row shape.
The inside wall of mould body 1 is equipped with water conservancy diversion lug 3, water conservancy diversion lug 3 is three horn shapes, just first angle 33 of water conservancy diversion lug 3 is located the middle part position on long limit of shaping through-hole 2, and first angle 33 is located the one side of keeping away from the extrusion mouth end.
The two sides of the first corner 33 of the diversion convex block 3 are provided with diversion convex edges which incline towards the directions of the two short sides of the forming through hole 2 respectively. Through carrying out the setting of triangle-shaped's water conservancy diversion lug 3 in shaping through-hole 2, can succeed in shaping through-hole 2, with the abundant water conservancy diversion diffusion of silver metal along two water conservancy diversion chimbs on length direction.
The portion of the die body 1 near the extrusion outlet is defined as an extrusion portion, referring to fig. 4, the inner side wall of the extrusion portion where the diversion protrusion 3 is located gradually inclines to be flush with the diversion protrusion 3 along the direction of the extrusion outlet. Through the slope setting to the inside wall of water conservancy diversion lug 3 place, even make shaping through-hole 2 become thin gradually by entry end to exit end to can let more abundant the gathering together of silver metal, follow the shaping passageway 2 extrusion of extrusion portion and go out, thereby make the stable and unanimous, the metal density of extrusion export of fashioned silver row shape even.
The die for the silver metal continuous extruder is specially used for silver which is a metal material with too soft property and too good fluidity after being heated or a metal material with the property similar to silver. The problem that when a traditional die or a dumbbell-shaped through hole die extrudes silver metal in an extrusion mode, the flowing core of the silver metal is too good and is not fully diffused in the length direction of the forming through hole 2 so as to be extruded out of a die body is avoided, and therefore the cross section of a silver bar finished product is unstable in shape and uneven in density.
In this embodiment, the two diversion bumps 3 are respectively and correspondingly disposed on the inner side walls of the mold body on the two long sides of the forming through hole 2. Therefore, when the silver metal is guided to the two sides, the silver metal can be conveniently guided to the middle part of the forming through hole 2 and then extruded into a silver row with uniform density.
In other embodiments, the diversion protrusion 3 may also have only one, and is located on one of the inner side walls of the mold body 1, and may also have an effect of diverting silver metal to both sides of the short side of the forming channel 2.
The included angle of the first angle 33 of the diversion convex block 3 is preferably 60 degrees to 120 degrees, wherein the size of the included angle is set relative to the height of the die body, so that the silver metal can be shunted to the forming through hole 2 fully filling the extrusion part through the diversion convex edges on the two sides of the first angle 33, the extruded silver row is complete in cross section shape, and the density is uniform. In the present embodiment, the included angle of the first corner 33 of the flow guiding protrusion 3 is 95 °, and the length of the opposite side of the first corner 33 of the flow guiding protrusion 3 is two thirds of the long side of the forming through hole 2.
In order to make the best use of the fluidity of the silver metal in absorbing the post heat in the continuous extruder, and to reduce the thickness of the die body and the pressure of the diversion bump 3, in this embodiment, the first corner 33 of the diversion bump 3 is disposed close to the molding inlet end.
In order to collect the silver metal more fully in the thickness direction of the forming through hole 2, in the embodiment of the invention, the diversion bumps 3 on the two side walls are inclined towards the direction close to each other from the outlet end to the inlet end. The thickness of the outlet of the forming through hole is gradually reduced by matching the shape change of the inner side wall of the extrusion part.
In order to make the surface of the silver bar smoother and the shape more stable, in this embodiment, two of the four inner side wall surfaces at the tail end of the extrusion portion are arranged in parallel.
Preferably, at the upper portion of the rear end of the pressing section, the inner side walls at the positions of both short sides of the forming through-hole 2 are inclined in the direction of approaching each other, thereby further compacting the silver metal material in the forming through-hole 2.
The mold body 1 may be integrally formed with the flow guide protrusion 3.
In this embodiment, since the mold is often made of a metal having a large mass, in order to reduce the weight when the mold body 1 is installed, the mold body 1 is divided into the forming pad 11 and the extrusion die 12 which are disposed vertically adjacent to each other.
The forming pad 11 has an upper convex block 31 of the diversion convex block 3, the upper convex block 31 is triangular, and the upper convex block 31 and the forming pad 11 are integrally formed. The extrusion die 12 is provided with a lower convex block 32 which is continuous with the upper convex block 31 in the diversion convex block 3, the lower convex block 32 is in an isosceles trapezoid shape, and the extrusion die 12 and the lower convex block 32 are integrally formed.
Further, in order to reduce the difficulty in casting and further reduce the weight of the mold body 1 during installation, the forming pad 11 includes a left pad 13 and a right pad 14 that are separable from each other. The left pad 13 and the right pad 14 are integrally formed with an upper projection 31, respectively.
The invention also provides a continuous extruder which comprises the extrusion wheel, the compaction wheel, the material blocking block, the extrusion cavity and the die, wherein the die is arranged at the outlet position of the extrusion cavity.
The continuous extrusion machine further comprises a conveying device positioned at the extrusion opening end of the die, and a cutting mechanism arranged on the conveying device and used for cutting the silver row extruded from the die into silver row sections with unit length.
The silver bar is cut into silver bar sections with unit length through the cutting mechanism, so that the effect of mass production of the silver metal standard blocks is achieved. The production cost of the existing silver metal block is reduced, the production efficiency is improved, and the standardized market application of the silver metal block is facilitated.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A die for a continuous extrusion press for silver metal,
comprises a die body, wherein a rectangular forming through hole is arranged in the die body,
the inner side wall of the die body is provided with a diversion convex block, the diversion convex block is triangular, a first corner of the diversion convex block is positioned in the middle of the long side of the forming through hole, and diversion convex edges which incline towards the directions of two short sides of the forming through hole respectively are arranged on two sides of the first corner of the diversion convex block;
the shaping through-hole includes shaping entry end and extrusion exit end, defines the mould body is close to extrusion exit tip and is divided into extrusion portion, the water conservancy diversion lug place inside wall of extrusion portion along extrude mouthful end direction progressively slope to with water conservancy diversion lug parallel and level.
2. The die for the silver metal continuous extrusion machine according to claim 1, wherein the number of the flow guide projections is two, and the two flow guide projections are respectively arranged on the inner side walls of the die body corresponding to the two long sides of the forming through hole.
3. The die for a silver metal continuous extrusion machine according to claim 1, wherein the first corner of the flow guide projection is disposed proximate to the molding entrance end.
4. The die for a silver metal continuous extruding machine according to claim 1, wherein four inner side wall surfaces of the tail end of the extruding portion are arranged in parallel two by two.
5. The die for a silver metal continuous extruding machine according to claim 1 or 2, wherein the die body comprises a forming pad and an extruding die which are adjacently arranged up and down, the forming pad is provided with an upper convex block of the diversion convex block, and the extruding die is provided with a lower convex block which is continuous with the upper convex block in the diversion convex block.
6. The die for a continuous extrusion press of silver metal as set forth in claim 5, wherein said forming mat includes a left pad and a right pad separable from each other.
7. The die for a continuous extrusion press of silver metal as set forth in claim 1, wherein the first angle is included at an angle of 60 ° to 120 °.
8. A continuous extrusion machine comprising an extrusion wheel, a compaction wheel, a dam, an extrusion cavity, and a die as claimed in any one of claims 1 to 7 mounted at an exit location from the extrusion cavity.
9. The continuous extrusion press of claim 8, further comprising a conveyor at the extrusion orifice end of the die, and a cutting mechanism disposed on the conveyor for cutting the silver strands extruded from the die into lengths of silver strand segments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010751694.8A CN111804751A (en) | 2020-07-30 | 2020-07-30 | Die of continuous extrusion machine for silver metal and continuous extrusion machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010751694.8A CN111804751A (en) | 2020-07-30 | 2020-07-30 | Die of continuous extrusion machine for silver metal and continuous extrusion machine |
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| Publication Number | Publication Date |
|---|---|
| CN111804751A true CN111804751A (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010751694.8A Pending CN111804751A (en) | 2020-07-30 | 2020-07-30 | Die of continuous extrusion machine for silver metal and continuous extrusion machine |
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| CN (1) | CN111804751A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798790A (en) * | 2022-02-15 | 2022-07-29 | 江苏鑫昌铝业有限公司 | Super wide microchannel extrusion die |
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|---|---|---|---|---|
| CN114798790A (en) * | 2022-02-15 | 2022-07-29 | 江苏鑫昌铝业有限公司 | Super wide microchannel extrusion die |
| CN114798790B (en) * | 2022-02-15 | 2024-04-16 | 江苏鑫昌铝业有限公司 | Ultra-wide micro-channel extrusion die |
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