CN212551071U - Extrusion die suitable for wide thin-wall multi-cavity aluminum profile - Google Patents
Extrusion die suitable for wide thin-wall multi-cavity aluminum profile Download PDFInfo
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- CN212551071U CN212551071U CN202021128248.3U CN202021128248U CN212551071U CN 212551071 U CN212551071 U CN 212551071U CN 202021128248 U CN202021128248 U CN 202021128248U CN 212551071 U CN212551071 U CN 212551071U
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Abstract
The utility model discloses an extrusion die suitable for broad width thin wall multicavity aluminium alloy, including the die sleeve, go up mould and lower mould, the one end of die sleeve has the die holding groove, goes up mould and lower mould and imbeds the die holding groove in proper order, and the die sleeve feed port has been seted up to the other end of die sleeve, and the opening size of the die sleeve feed inlet of die sleeve is less than the die sleeve discharge gate, has a plurality of shunting holes on going up the mould, and the projection of each shunting hole on the die holding groove all is located the die sleeve discharge gate. Technical scheme more than adopting, to go up mould and lower mould direct mount in the die sleeve, through the transformation to the die sleeve structure, accomplish extremely with the extension of die sleeve, guarantee the widest section bar feed of board, let the aluminium ingot warp the process of extension and directly accomplish in the die sleeve, thereby it does not have any extension structure to make the one end terminal surface that goes up the mould and be close to the die sleeve, not only make the thickness of mould thinner, it is more convenient to process, lead cycle is shorter, and the overall dimension that makes the mould is littleer moreover, the cost is lower, realize little mould extrusion big section bar.
Description
Technical Field
The utility model relates to an extrusion die technical field, concretely relates to extrusion die suitable for wide width thin wall multicavity aluminium alloy.
Background
The wide thin-wall multi-cavity aluminum profile is an aluminum profile with the circumscribed circle diameter far larger than the diameter of an extrusion cylinder, the wall thickness thinner than that of a common product and more than 10 cavities.
At present, the extrusion die suitable for wide, thin-wall and multi-cavity aluminum profiles is of a three-piece structure consisting of a protection die (a wide expansion die), an upper die and a lower die, the overall size of the die is large, the processing is complex, the manufacturing cost is high, the forming quality of the profiles can be guaranteed only by repairing the die for many times, and the one-time on-machine qualification rate of the die is extremely low.
It is urgent to solve the above problems.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem above, the utility model provides an extrusion die suitable for wide width thin wall multicavity aluminium alloy.
The technical scheme is as follows:
the utility model provides an extrusion die suitable for broad width thin wall multicavity aluminium alloy, its main points lie in, include the die sleeve, go up the mould and with last mould complex lower mould, the one end of die sleeve has the die holding groove that suits with last mould and lower mould, go up mould and lower mould and imbed in the die holding groove in proper order, the die sleeve feed port with die holding groove intercommunication is seted up to the other end of die sleeve, and the both ends opening of this die sleeve feed port is die sleeve feed inlet and die sleeve discharge gate respectively, the opening size of die sleeve feed inlet is less than the opening size of die sleeve discharge gate, upward have the reposition of redundant personnel hole that a plurality of axial run through on the mould, the projection of each reposition of redundant personnel hole on the die holding groove all is located the die sleeve discharge.
Structure more than adopting, no longer need traditional protection mould (wide exhibition mould), and will go up mould and lower mould direct mount in the die sleeve, through the transformation to the die sleeve structure, accomplish extremely with the extension of die sleeve, guarantee the widest section bar feed of board, let the process that the aluminium ingot warp the extension directly accomplish in the die sleeve (the aluminium ingot of extension can cover all branch discharge orifices), thereby make the one end terminal surface that goes up the mould and be close to the die sleeve not have any extension structure, not only make the thickness of mould thinner, processing is more convenient, lead cycle is shorter, and the appearance (excircle) size that makes the mould is littleer, the cost is lower, realize the big section bar of little mould extrusion.
Because the metal fluidity of the central position of the upper die is better than that of the two sides, the upper die is preferable: sunken shunting bridges are formed among the shunting holes distributed on two sides in a sunken mode, and flush shunting bridges flush with the end face of the upper die are arranged among the shunting holes distributed in the middle. By adopting the structure, the sunken shunt bridges are arranged on the two sides, so that the friction resistance of metal flow is reduced, and the flow velocity difference of different positions away from the extrusion center is balanced.
Preferably, the method comprises the following steps: and two side walls of the sinking type shunt bridge and the flush type shunt bridge, which are close to one end of the lower die, are conical surface structures with gradually reduced width towards the lower die. By adopting the structure, the sections of the sinking type shunt bridge and the flush type shunt bridge are both in a water drop-shaped structure, so that the metal flowing and welding are facilitated.
Preferably, the method comprises the following steps: the width of the sinking type flow dividing bridge and the flush type flow dividing bridge close to one end of the lower die is 1/5 which is close to the width of one end of the die sleeve feeding hole.
Preferably, the method comprises the following steps: the conicity of the two side walls of the sinking type shunt bridge and the flush type shunt bridge close to one end of the lower die is 15-30 degrees.
Preferably, the method comprises the following steps: the lower die is provided with a lower die cavity, wherein the lower die cavity is provided with a lower die cavity, the lower die cavity is provided with an upper die and a lower die cavity, the upper die cavity is provided with an upper die and a lower die cavity, the lower die cavity is provided with an inlet, the upper die cavity is provided with an inlet, the lower die cavity is provided. By adopting the structure, the metal flow can be effectively guided, and the forming quality and the yield of the section bar are improved.
Preferably, the method comprises the following steps: the end face of the upper die close to one end of the lower die is provided with an upper die core protruding outwards, the lower die is provided with a lower die cavity matched with the upper die core, the upper die core extends into the lower die cavity, and a neck supporting surface in a conical surface structure is arranged on the side wall of the upper die core. By adopting the structure, the foundation of the upper die core is firmer, the displacement of the upper die core in the extrusion process is reduced, and the risk of the change of the wall thickness of the section is further reduced.
Preferably, the method comprises the following steps: the upper die is provided with two upper die quenching holes which are respectively positioned at two sides of the shunt hole, and the lower die is provided with two lower die quenching holes which are respectively communicated with the upper die quenching holes. By adopting the structure, the thickness difference of each part of the die can be reduced through the added through-quenching holes, the cracking risk in the quenching process of the die is reduced, and the problem of wall thickness change caused by inconsistent hole deformation caused by inconsistent heat loss in the extrusion process is balanced.
Compared with the prior art, the beneficial effects of the utility model are that:
technical scheme's extrusion die suitable for broad width thin wall multicavity aluminium alloy more than adopting, novel structure, design benefit, easily realize, no longer need traditional protection mould (wide exhibition mould), and will go up mould and lower mould direct mount in the die sleeve, through the transformation to the die sleeve structure, accomplish extremely delightful with the extension of die sleeve, guarantee the widest section bar feed of board, let the aluminium ingot warp the process of extension and directly accomplish in the die sleeve (the aluminium ingot of extension can cover all branch discharge orifices), thereby it does not have any extension structure to make the one end terminal surface that the mould is close to the die sleeve, not only make the thickness of mould thinner, processing is more convenient, lead cycle is shorter, and the appearance (excircle) size that makes the mould is littleer, the cost is lower, realize that little mould extrudees big section bar.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural view of the upper die on the side close to the bottom of the die mounting groove;
FIG. 4 is a schematic structural view of a side of the upper mold close to the lower mold;
fig. 5 is a schematic structural view of the lower die.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
As shown in fig. 1 and 2, an extrusion die suitable for a wide thin-wall multi-cavity aluminum profile mainly comprises an upper die 1, a lower die 2 and a die sleeve 3, wherein one end of the die sleeve 3 is provided with a die mounting groove 31 adapted to the upper die 1 and the lower die 2, the upper die 1 and the lower die 2 are sequentially embedded into the die mounting groove 31, namely, the upper die 1 is firstly embedded into the die mounting groove 31, the lower die 2 is then embedded into the die mounting groove 31, and the upper die 1 is located between the lower die 2 and the bottom of the die mounting groove 31.
The die sleeve feeding hole 32 communicated with the die mounting groove 31 is formed in one end, away from the notch of the die mounting groove 31, of the die sleeve 3, openings at two ends of the die sleeve feeding hole 32 are respectively a die sleeve feeding hole 321 and a die sleeve discharging hole 322, the opening size of the die sleeve feeding hole 321 is smaller than that of the die sleeve discharging hole 322, a plurality of axially-through shunting holes 11 are formed in the upper die 1, and projections of inlets 111 of the shunting holes 11 on the die mounting groove 31 are located in the die sleeve discharging hole 322. Through the transformation to die sleeve feed port 32 structure, accomplish extremely the extension of die sleeve feed port 32, guarantee the widest section bar feed of board, let the process of aluminium ingot deformation extension accomplish directly in die sleeve feed port 32 (the aluminium ingot of extension can cover all inlet 111 of reposition of redundant personnel hole 11), thereby make the one end terminal surface that goes up mould 1 mould is close to the die sleeve need not to set up any extension structure again, not only make the thickness of mould thinner, processing is more convenient, lead cycle is shorter, and the appearance (excircle) size that makes the mould is littleer, the cost is lower, realize little mould extrusion big section bar.
Referring to fig. 3, sunken shunt bridges 12 are formed between the shunt holes 11 distributed on both sides in a recessed manner, and flush shunt bridges 13 flush with the end surface of the upper die 1 are formed between the shunt holes 11 distributed in the middle. Because the metal fluidity of the central position of the upper die 1 is better than that of the two sides, the sunken shunt bridges 12 are arranged on the two sides, so that the friction resistance of the metal flow is reduced, and the flow velocity difference of different positions away from the extrusion center is balanced.
The two side walls of the sinking type shunt bridge 12 and the flush type shunt bridge 13 close to one end of the lower die 2 are both conical surface structures with the width gradually reduced towards the direction of the lower die 2. The widths of the end of the sinking and leveling type flow dividing bridges 12 and 13 close to the lower die 2 are 1/5 which is close to the width of the end of the die sleeve feeding hole 32. The taper of the two side walls of the sinking type shunt bridge 12 and the flush type shunt bridge 13 close to one end of the lower die 2 is 15-30 degrees, and the preferred taper of the embodiment is 15 degrees. The sections of the sinking type shunt bridge 12 and the flush type shunt bridge 13 are both of a water drop structure, which is beneficial to metal flowing and welding.
The end face of one end, close to the upper die 1, of the lower die 2 is recessed to form a first-stage welding chamber 23 and a second-stage welding chamber 24, the second-stage welding chamber 24 surrounds the inlet of the lower die cavity 21, the first-stage welding chamber 23 surrounds the second-stage welding chamber 24, the depth of the second-stage welding chamber 24 is larger than that of the first-stage welding chamber 23, the depth of each part of the second-stage welding chamber 24 is the same as the width of the adjacent sunken shunt bridge 12 or the flush shunt bridge 13, metal flowing can be effectively guided, and forming quality and yield of the section bar are improved. And the position of the lower die 21 corresponding to the thick wall of the section is provided with a baffle 25 protruding out of the end surfaces of the primary welding chamber 23 and the secondary welding chamber 24, so that the surface quality problem caused by high drop formed at the outlet end and the inlet end of the conventional working belt is avoided.
Referring to fig. 2, an end surface of the upper die 1 near one end of the lower die 2 is provided with an upper die core 14 protruding outwards, the lower die 2 is provided with a lower die cavity 21 matched with the upper die core 14, the upper die core 14 extends into the lower die cavity 21, and a neck supporting surface 14a in a conical surface structure is arranged on a side wall of the upper die core 14.
Referring to fig. 3-5, the upper die 1 is provided with two upper die quenching holes 15 respectively located at two sides of the diversion hole 11, the lower die 2 is provided with two lower die quenching holes 22 respectively communicated with the upper die quenching holes 15, and through the added quenching holes, the thickness difference of each part of the die can be reduced, the cracking risk of the die in the quenching process is reduced, and meanwhile, the problem of wall thickness change caused by inconsistent hole deformation due to inconsistent heat loss in the extrusion process is balanced.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (8)
1. The utility model provides an extrusion die suitable for multicavity aluminium alloy of broad width thin wall which characterized in that: comprises a die sleeve (3), an upper die (1) and a lower die (2) matched with the upper die (1), one end of the die sleeve (3) is provided with a die mounting groove (31) which is matched with the upper die (1) and the lower die (2), the upper die (1) and the lower die (2) are sequentially embedded into the die mounting groove (31), the other end of the die sleeve (3) is provided with a die sleeve feeding hole (32) communicated with the die mounting groove (31), the openings at the two ends of the die sleeve feeding hole (32) are respectively a die sleeve feeding hole (321) and a die sleeve discharging hole (322), the opening size of the die sleeve feed port (321) is smaller than that of the die sleeve discharge port (322), the die is characterized in that the upper die (1) is provided with a plurality of axially-penetrating shunting holes (11), and projections of inlets (111) of the shunting holes (11) on the die mounting groove (31) are located in a die sleeve discharge hole (322).
2. The extrusion die suitable for the wide, thin-walled and multi-cavity aluminum profile as claimed in claim 1, wherein: sunken shunt bridges (12) are formed between the shunt holes (11) distributed on two sides in a sunken mode, and flush shunt bridges (13) flush with the end face of the upper die (1) are arranged between the shunt holes (11) distributed in the middle.
3. The extrusion die suitable for the wide, thin-walled and multi-cavity aluminum profile as claimed in claim 2, wherein: the two side walls of one end of the sinking type shunt bridge (12) and one end of the flush type shunt bridge (13) close to the lower die (2) are both conical surface structures with the width gradually reduced towards the direction of the lower die (2).
4. The extrusion die suitable for the wide, thin-walled and multi-cavity aluminum profile as claimed in claim 3, wherein: the width of one end of the sinking type flow distribution bridge (12) and the flush type flow distribution bridge (13) close to the lower die (2) is 1/5 which is close to the width of one end of the die sleeve feeding hole (32).
5. The extrusion die suitable for the wide, thin-walled and multi-cavity aluminum profile as claimed in claim 3, wherein: the conicity of the two side walls of one end of the sinking type shunt bridge (12) and one end of the flush type shunt bridge (13) close to the lower die (2) is 15-30 degrees.
6. The extrusion die suitable for the wide, thin-walled and multi-cavity aluminum profile as claimed in claim 1, wherein: the lower die (2) is close to one end face of the upper die (1) and is concavely formed with a first-stage welding chamber (23) and a second-stage welding chamber (24), the second-stage welding chamber (24) surrounds around an inlet of the lower die cavity (21), the first-stage welding chamber (23) surrounds around the second-stage welding chamber (24), the depth of the second-stage welding chamber (24) is larger than that of the first-stage welding chamber (23), and the depth of each part of the second-stage welding chamber (24) is the same as the width of an adjacent sunken shunt bridge (12) or a flush shunt bridge (13).
7. The extrusion die suitable for the wide, thin-walled and multi-cavity aluminum profile as claimed in claim 1, wherein: the end face, close to one end of the lower die (2), of the upper die (1) is provided with an upper die core (14) protruding outwards, the lower die (2) is provided with a lower die cavity (21) matched with the upper die core (14), the upper die core (14) extends into the lower die cavity (21), and a neck supporting surface (14a) of a conical surface structure is arranged on the side wall of the upper die core (14).
8. The extrusion die suitable for the wide, thin-walled and multi-cavity aluminum profile as claimed in claim 1, wherein: the upper die (1) is provided with two upper die quenching holes (15) which are respectively positioned at two sides of the shunt hole (11), and the lower die (2) is provided with two lower die quenching holes (22) which are respectively communicated with the upper die quenching holes (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021128248.3U CN212551071U (en) | 2020-06-17 | 2020-06-17 | Extrusion die suitable for wide thin-wall multi-cavity aluminum profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021128248.3U CN212551071U (en) | 2020-06-17 | 2020-06-17 | Extrusion die suitable for wide thin-wall multi-cavity aluminum profile |
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| CN212551071U true CN212551071U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021128248.3U Active CN212551071U (en) | 2020-06-17 | 2020-06-17 | Extrusion die suitable for wide thin-wall multi-cavity aluminum profile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894174A (en) * | 2021-09-30 | 2022-01-07 | 中铝萨帕特种铝材（重庆）有限公司 | Extrusion die for producing large multi-cavity rectangular aluminum profile |
| CN114682641A (en) * | 2022-05-17 | 2022-07-01 | 安徽金铂新材料科技有限公司 | Quick forming die is used in processing of dysmorphism thin wall aluminum alloy |
-
2020
- 2020-06-17 CN CN202021128248.3U patent/CN212551071U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894174A (en) * | 2021-09-30 | 2022-01-07 | 中铝萨帕特种铝材（重庆）有限公司 | Extrusion die for producing large multi-cavity rectangular aluminum profile |
| CN113894174B (en) * | 2021-09-30 | 2024-01-26 | 中铝特种铝材(重庆)有限公司 | Extrusion die for producing large multi-cavity rectangular aluminum profile |
| CN114682641A (en) * | 2022-05-17 | 2022-07-01 | 安徽金铂新材料科技有限公司 | Quick forming die is used in processing of dysmorphism thin wall aluminum alloy |
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Address after: 401326 no.80-2, aluminum City Avenue, Xipeng Town, Jiulongpo District, Chongqing Patentee after: Chinalco Special Aluminum Products (Chongqing) Co.,Ltd. Address before: 401326 no.80-2, aluminum City Avenue, Xipeng Town, Jiulongpo District, Chongqing Patentee before: SAPA CHALCO ALUMINUM PRODUCTS CO.,LTD. |