CN114011897B - Extrusion die and working belt - Google Patents
Extrusion die and working belt Download PDFInfo
- Publication number
- CN114011897B CN114011897B CN202111282824.9A CN202111282824A CN114011897B CN 114011897 B CN114011897 B CN 114011897B CN 202111282824 A CN202111282824 A CN 202111282824A CN 114011897 B CN114011897 B CN 114011897B
- Authority
- CN
- China
- Prior art keywords
- extrusion die
- working
- feeding
- working belt
- metal plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 32
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims description 17
- 239000002184 metal Substances 0.000 abstract description 24
- 239000013078 crystal Substances 0.000 abstract description 7
- 239000002344 surface layer Substances 0.000 abstract description 7
- 238000010008 shearing Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an extrusion die and a working belt, wherein the working belt comprises a feeding end which is communicated with a flow guide cavity of the extrusion die and a discharging end which is communicated with a rear cutter position of the extrusion die, the feeding end comprises a feeding end face and a feeding side face, and a convex curved face is arranged between the feeding end face and the feeding side face. Therefore, when the metal plate enters the feeding end of the working belt, the shearing deformation stress of the surface layer of the metal plate after extrusion molding can be effectively reduced due to the action of the convex curved surface, and the growth of crystal grains of the surface layer of the metal plate is further hindered, so that the crystal grains of the metal plate after extrusion molding are uniform and consistent, and the task amount during downstream client processing is effectively reduced.
Description
Technical Field
The invention relates to the technical field of metal profile machining, in particular to an extrusion die and a working belt.
Background
When the working belt of the extrusion die extrudes and forms a coarse grain layer of about 1mm on the surface of the extruded metal plate, the current extrusion die can obviously delaminate the formed product in the whole section direction due to the difference of grain uniformity, and the appearance effect of the formed product is affected, so that the coarse grain layer must be removed in a milling mode in the subsequent machining sequence, and the task amount of downstream client machining is increased.
Therefore, how to provide a working belt, the grains of the metal plate after extrusion molding can be uniform, so that the task amount of downstream client processing can be effectively reduced, which is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a working belt that can make the crystal grains of the metal plate after extrusion uniform and effectively reduce the amount of tasks at the time of downstream client processing.
It is still another object of the present invention to provide an extrusion die.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a working belt, is including being used for with the feed end that extrusion die's water conservancy diversion chamber is linked together and be used for with extrusion die's back sword position intercommunication discharge end, its characterized in that, the feed end includes feeding terminal surface and feeding side, the feed terminal surface with still be provided with protruding curved surface between the feeding side.
Preferably, the curvature radius of the convex curved surface is between 5mm and 20 mm.
Preferably, the device further comprises a transition surface and a working surface which are arranged between the feeding end and the discharging end, and the transition surface is connected with the feeding side surface and the working surface.
Preferably, the transition surface is an inclined surface, and the working surface is a straight surface.
Preferably, the length of the transition surface is 8mm-12mm.
Preferably, the angle between the transition surface and the flat surface is 5 ° -8 °.
Preferably, the area of the working belt gradually decreases from the feeding end to the discharging end.
An extrusion die comprising a feed belt as claimed in any one of the preceding claims.
According to the technical scheme, the working belt disclosed by the embodiment of the invention has the advantages that the convex curved surface is arranged between the feeding end surface and the feeding side surface, so that when the metal plate enters the feeding end of the working belt, the shearing deformation stress of the surface layer of the metal plate after extrusion molding can be effectively reduced due to the action of the convex curved surface, and the growth of crystal grains of the surface layer of the metal plate is further blocked, so that the crystal grains of the metal plate after extrusion molding are uniform and consistent, and the task amount during downstream client processing is effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a front view of an extrusion die according to an embodiment of the present invention;
FIG. 2 is a schematic side view of an extrusion die according to an embodiment of the present invention;
fig. 3 is an enlarged sectional structural schematic view at a of fig. 1.
Wherein, each part name is as follows:
100 is a die face, 101 is a working belt, 1011 is a feeding end face, 1012 is a feeding side face, 1013 is a convex curved face, 1014 is a transition face, 1015 is a working face, 102 is a flow guiding cavity, 103 is a back cutter position, and 200 is a die pad.
Detailed Description
Accordingly, the core of the present invention is to provide a working belt, which can make the grains of the extruded metal sheet uniform and effectively reduce the task amount during the downstream client processing.
It is still another object of the present invention to provide an extrusion die.
The present invention will be described in further detail below with reference to the drawings and detailed description for the purpose of better understanding of the present invention by those skilled in the art.
Referring to fig. 1 to 3, a working belt 101 according to an embodiment of the present invention includes a feeding end for communicating with a guide cavity 102 of an extrusion die and a discharging end for communicating with a back cutter 103 of the extrusion die, wherein the feeding end includes a feeding end face 1011 and a feeding side face 1012, and a convex curved surface 1013 is further disposed between the feeding end face 1011 and the feeding side face 1012. Therefore, when the metal sheet enters the feeding end of the working belt 101, the shearing deformation stress of the surface layer of the metal sheet after extrusion molding is effectively reduced due to the action of the convex curved surface 1013, and the growth of the crystal grains of the surface layer of the metal sheet is further hindered, so that the crystal grains of the metal sheet after extrusion molding are uniform and consistent, and the task amount during downstream client processing is effectively reduced.
The embodiment of the invention does not limit the curvature radius of the convex curved surface in detail, and only the structure meeting the use requirement of the invention is within the protection scope of the invention,
as a preferred embodiment, the curvature radius of the convex curved surface 1013 disclosed in the embodiment of the present invention is preferably between 5mm and 20mm, so that the arrangement of the convex curved surface 1013 does not cause the growth of grains to form a coarse grain layer due to the temperature generated by the shearing deformation of the metal plate material entering the working belt 101 at the moment of deformation, and also does not cause the defects such as twill and the like after the surface of the formed product is oxidized.
In order to uniformly flow velocity of each particle of the cross section of the molded product, reduce the difference in size of the molded product and increase the recrystallization degree of the molded product, the disclosed working belt 101 further includes a transition surface 1014 and a working surface 1015 disposed between the feeding end and the discharging end, wherein the transition surface 1014 connects the feeding side surface 1012 and the working surface 1015.
It should be noted that, when the metal plate enters the inclined transition surface 1014 from the feeding end of the working belt 101, the inclined surface equalizes the flow velocity of each particle of the metal plate section, reduces the difference in size of the formed product, increases the recrystallization degree of the metal plate, then the metal plate enters the working surface 1015 again for shaping, and finally enters the post-cutter from the discharging end.
Since the length of the transition surface 1014 affects the surface grain size of the molded product and the average grain size of the entire product cross section, the length of the transition surface 1014 disclosed in the embodiment of the present invention is preferably 8mm-12mm, and the angle between the transition surface 1014 and the working surface 1015 is preferably set to 5 ° -8 °.
Referring to fig. 3, it can be seen that the area of the working belt 101 disclosed in the embodiment of the present invention gradually decreases from the feeding end to the discharging end. The arrangement of the working belt 101 can effectively improve the degree of shearing deformation of the surface layer of the finished metal plate, so that the grain size on the section of the whole finished metal plate is uniform, and the production cost of downstream customers is effectively reduced.
The embodiment of the invention also discloses an extrusion die, which comprises the feeding belt disclosed in any embodiment.
Because the extrusion die adopts the feeding belt disclosed in the above embodiment, the extrusion die has the technical advantages disclosed in the above feeding belt, and the embodiment of the invention will not be repeated.
It should be noted that, the extrusion die disclosed in the embodiment of the present invention includes a die surface 100 and a die pad 200, wherein the die surface 100 and the die pad 200 are connected by a detachable connection manner.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The working belt comprises a feeding end and a discharging end, wherein the feeding end is communicated with a flow guide cavity of an extrusion die, and the discharging end is communicated with a rear cutter position of the extrusion die;
the curvature radius of the convex curved surface is between 5mm and 20 mm;
the device also comprises a transition surface and a working surface which are arranged between the feeding end and the discharging end, wherein the transition surface is connected with the feeding side surface and the working surface;
the transition surface is an inclined surface, and the working surface is a straight surface;
the length of the transition surface is 8mm-12mm.
2. The working tape of claim 1, wherein the angle between the transition surface and the straight surface is 5 ° -8 °.
3. The working belt of claim 1 wherein the working belt tapers in area from the infeed end to the outfeed end.
4. An extrusion die comprising a working belt according to any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111282824.9A CN114011897B (en) | 2021-11-01 | 2021-11-01 | Extrusion die and working belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111282824.9A CN114011897B (en) | 2021-11-01 | 2021-11-01 | Extrusion die and working belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114011897A CN114011897A (en) | 2022-02-08 |
| CN114011897B true CN114011897B (en) | 2024-03-05 |
Family
ID=80059247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111282824.9A Active CN114011897B (en) | 2021-11-01 | 2021-11-01 | Extrusion die and working belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114011897B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009131858A (en) * | 2007-11-28 | 2009-06-18 | Mitsubishi Materials Corp | Rotary wheel type continuous extrusion device, flow guide and method of manufacturing metal extruded material |
| JP2012020314A (en) * | 2010-07-15 | 2012-02-02 | Showa Denko Kk | Extrusion die |
| CN203991729U (en) * | 2014-07-18 | 2014-12-10 | 广州科技职业技术学院 | Half hollow aluminium profile touches wears formula extrusion die |
| JP2015110242A (en) * | 2013-11-07 | 2015-06-18 | 新日鐵住金株式会社 | Front extrusion method, method of manufacturing hollow member, and front extrusion device |
| CN105312343A (en) * | 2015-10-14 | 2016-02-10 | 张家港市华程异型钢管有限公司 | Calendering die for square special pipe |
| CN207756627U (en) * | 2018-01-23 | 2018-08-24 | 东莞市宏锦金属制品有限公司 | A kind of aluminium alloy hot-extrusion die |
| CN208019173U (en) * | 2018-03-14 | 2018-10-30 | 江苏江南创佳型材有限公司 | A kind of aluminum alloy plate materials extrusion die |
| CN112620372A (en) * | 2020-12-23 | 2021-04-09 | 太原理工大学 | Mold and method for preparing magnesium alloy plate strip with weak basal plane texture by continuous differential extrusion |
-
2021
- 2021-11-01 CN CN202111282824.9A patent/CN114011897B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009131858A (en) * | 2007-11-28 | 2009-06-18 | Mitsubishi Materials Corp | Rotary wheel type continuous extrusion device, flow guide and method of manufacturing metal extruded material |
| JP2012020314A (en) * | 2010-07-15 | 2012-02-02 | Showa Denko Kk | Extrusion die |
| JP2015110242A (en) * | 2013-11-07 | 2015-06-18 | 新日鐵住金株式会社 | Front extrusion method, method of manufacturing hollow member, and front extrusion device |
| CN203991729U (en) * | 2014-07-18 | 2014-12-10 | 广州科技职业技术学院 | Half hollow aluminium profile touches wears formula extrusion die |
| CN105312343A (en) * | 2015-10-14 | 2016-02-10 | 张家港市华程异型钢管有限公司 | Calendering die for square special pipe |
| CN207756627U (en) * | 2018-01-23 | 2018-08-24 | 东莞市宏锦金属制品有限公司 | A kind of aluminium alloy hot-extrusion die |
| CN208019173U (en) * | 2018-03-14 | 2018-10-30 | 江苏江南创佳型材有限公司 | A kind of aluminum alloy plate materials extrusion die |
| CN112620372A (en) * | 2020-12-23 | 2021-04-09 | 太原理工大学 | Mold and method for preparing magnesium alloy plate strip with weak basal plane texture by continuous differential extrusion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114011897A (en) | 2022-02-08 |
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