CN214417336U - Extrusion die suitable for online cooling of inner surface of aluminum profile - Google Patents
Extrusion die suitable for online cooling of inner surface of aluminum profile Download PDFInfo
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- CN214417336U CN214417336U CN202120494363.0U CN202120494363U CN214417336U CN 214417336 U CN214417336 U CN 214417336U CN 202120494363 U CN202120494363 U CN 202120494363U CN 214417336 U CN214417336 U CN 214417336U
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Abstract
The utility model relates to an extrusion die suitable for online cooling of aluminium alloy internal surface, extrusion die is including the upper die, lower mould and the backing plate that set gradually, and the upper die includes the template that has the water conservancy diversion hole, cooperates and forms the mold core of seam room with the lower mould, and extrusion die still includes the water conservancy diversion passageway that is used for making outside cold source leading-in to mold core department, and the water conservancy diversion passageway has the entry of butt joint with outside cold source and locates the discharge port on the mold core outer peripheral face, and the cold source contact that derives through the discharge port is on the aluminium alloy internal surface; the utility model discloses an extrusion die can provide a low temperature inert gas and guarantee the atmosphere, reduces mold core outside and section bar export inner chamber surface temperature, reduces aluminium alloy inner chamber surface high temperature oxidation and takes place the probability, reduces the production of surface defects such as inner chamber surface particulate matter, stripe, effectively improves aluminium alloy ex-trusions inner chamber roughness, need not to increase the processing procedures such as back-end car, mill, shortens process time, reduction in production cost, improvement production efficiency.
Description
Technical Field
The utility model relates to an extrusion die suitable for online cooling of aluminium alloy internal surface.
Background
The pneumatic device product has been widely used in various industrial parts, the cylinder body is one of the core components, the internal cavity is a track for the movement of the piston, and the piston is required to make smooth reciprocating sliding in the cylinder body, so that the requirement on the roughness of the inner surface of the cylinder body is high. Because the surface of the traditional extruded aluminum profile is easy to oxidize in a high-temperature environment to form aluminum oxide particles, the aluminum oxide particles are attached to the surface of the aluminum profile to influence the surface roughness of the aluminum profile, and meanwhile, the aluminum oxide particles are attached to the outlet of a die and are gathered to be enlarged, so that the surface of the aluminum profile is scratched to influence the surface roughness of the aluminum profile. In the traditional processing technology, in order to ensure the requirement of the surface roughness of the inner diameter of the cylinder body, an inner diameter turning or milling processing procedure is added after the extrusion of the aluminum alloy section cylinder body is finished, so that the production procedure is increased, the production cost is improved, and the production efficiency is reduced; in the scheme disclosed in the prior art, a method for cooling the die by adopting liquid nitrogen is adopted, the surface of the aluminum profile can be subjected to inert protection to prevent oxidation, however, the existing scheme is easy to realize, the liquid nitrogen is directly led to the outer surface of the product, and the scheme cannot positively influence the inner surface of the product.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art not enough, provide an extrusion die suitable for online cooling of aluminium alloy internal surface.
In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:
the utility model provides an extrusion die suitable for online cooling of aluminium alloy internal surface, extrusion die is including the last mould that sets gradually, lower mould and backing plate, go up the mould including the template that has the water conservancy diversion hole, with the lower mould cooperation and form the mold core of seam room, extrusion die is still including being used for making the leading-in water conservancy diversion passageway to mold core department of outside cold source, the water conservancy diversion passageway has the entry with the butt joint of outside cold source and locates the discharge port on the outer peripheral face of mold core, the cold source contact of exporting through the discharge port is on aluminium alloy internal surface.
Preferably, the discharge port has a plurality.
Preferably, the plurality of discharge ports are evenly distributed on the outer circumferential surface of the mold core at intervals in the circumferential direction.
Preferably, the inlet of the flow guide channel is only provided with one inlet, and is arranged on one end surface of the backing plate far away from the lower die.
Preferably, the flow guide channel comprises a first pore channel which is arranged on the base plate and communicated with the inlet, a second pore channel which is arranged on the upper die, and a plurality of dispersing pore channels which are arranged on the die core and connected between the discharge ports and the second pore channel, and the flow guide channel further comprises at least two flow distribution channels which are connected between the first pore channel and the second pore channel.
Preferably, the first cell channels extend in the thickness direction of the shim plate and are located on one side of the shim plate in the circumferential direction.
Preferably, the second duct extends in the thickness direction of the upper die and is located at the center of the upper die.
Preferably, one end of each dispersion channel is communicated with the second channel, and the other end of each dispersion channel is diverged and extended outwards along the radial direction of the mold core.
Preferably, the number of the flow distribution channels is two, and each of the two flow distribution channels has a first section opened on one end face of the lower die, a second section penetrating between the lower die and the upper die, and a third section extending along the radial direction of the upper die.
Preferably, the number of the discharge ports is 8, and the dispersion pipes have 8 arranged in one-to-one correspondence with the discharge ports.
Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:
the utility model discloses an extrusion die, lead the circulation through the design and lead outside cold source (liquid nitrogen) to the mold core outer peripheral face through the water conservancy diversion passageway, from aluminium alloy internal surface rather than contact cooling, provide a low temperature inert gas and guarantee the atmosphere, reduce the mold core outside and section bar export inner chamber surface temperature, reduce aluminium alloy inner chamber surface high-temperature oxidation and take place the probability, reduce inner chamber surface particulate matter, the production of surface defects such as stripe, effectively improve aluminium alloy ex-trusions inner chamber roughness, realize extruding aluminium alloy ex-trusions inner chamber roughness and accord with customer operation requirement, need not to increase the later carriage, process such as milling, shorten process time, the reduction in production cost, the production efficiency is improved.
Drawings
FIG. 1 is a schematic view of the three-dimensional structure of the upper mold, the lower mold and the base plate of the present invention in a state of being installed and connected in a matching manner;
FIG. 2 is a schematic view of the three-dimensional structure of the upper mold, the lower mold and the backing plate of the present invention after they are exploded from each other;
fig. 3 is a schematic view of the specific structure of the flow guide channel of the present invention;
wherein: m1, template; m11, mold core; m10, flow guide holes; m2, a lower die; m3, a backing plate; k1, inlet; k2, vent; 10. a first duct; 20. a second duct; 30. dispersing the pore channels; d1, first segment; d2, second segment; d3, third stage.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, an extrusion die suitable for online cooling of an inner surface of an aluminum profile comprises an upper die, a lower die m2 and a backing plate m3 which are sequentially arranged, wherein the upper die comprises a die plate m1 with flow guide holes m10 and a die core m11 matched with the lower die m2 and forming a welding chamber, the extrusion die further comprises a flow guide channel for guiding an external cold source to the die core, the flow guide channel is provided with an inlet k1 butted with the external cold source and a discharge port k2 arranged on the outer peripheral surface of the die core, and the cold source guided out through the discharge port k2 is in contact with the inner surface of the aluminum profile.
Specifically, the discharge ports k2 of the flow guide channels are arranged on the outer circumferential surface of the mold core m11, the number of the discharge ports k2 is 8, and the discharge ports k2 are uniformly distributed on the outer circumferential surface of the mold core m11 at intervals in the circumferential direction. The inlet k1 of the flow guide channel is provided with only one and is arranged on one end surface of the backing plate m3 far away from the lower die m 2.
Further, the flow guide channel comprises a first pore passage 10, a second pore passage 20 and 8 dispersion pore passages 30 (8 dispersion pore passages 30 and 8 discharge ports k2 are arranged in a one-to-one correspondence manner) which are arranged on the backing plate m3 and communicated with the inlet k1, the second pore passage 20 is arranged on the upper die, the core m11 is arranged on the die core and is connected between the discharge ports k2 and the second pore passage 20, the outlets of the eight dispersion pore passages 30 form 8 discharge ports k2, and the flow guide channel further comprises two branch channels connected between the first pore passage 10 and the second pore passage 20.
In this example, the first porthole 10 extends in the thickness direction of the shim plate m3 and is located on one side in the circumferential direction of the shim plate m 3. The second porthole 20 extends in the thickness direction of the upper die and is located in the center of the upper die.
One end portion of each of the dispersion holes 30 communicates with the second hole 20, and the other end portion of each of the dispersion holes 30 diverges outward in the radial direction of the mold core m11 and extends to the corresponding discharge port k 2.
The two flow dividing channels are provided with a first section d1, a second section d2 and a third section d3 which are sequentially communicated, the two first sections d1 are arranged on one end face of the lower die m2 (the first section d1 is formed by a groove arranged on one end face of the lower die m 2) and are communicated with the first through hole, the two second sections d2 are far away from each other and penetrate between the lower die m2 and the upper die, and the two third sections d3 radially extend along the upper die and are communicated with the second hole channel 20. The design of two reposition of redundant personnel passageways can let more smoothly that the cold source flows, also can continue to keep cold source circulation demand after a passageway blocks up.
The utility model discloses during extrusion die production use, the condition of water conservancy diversion passageway guide cold source as follows: the cold source firstly enters the first duct 10 from the inlet k1, then is divided into two branch passages, then is merged to the second duct 20, and finally is discharged to the inner surface of the product from the discharge port k2 after passing through the dispersion duct 30.
To sum up, the utility model discloses an extrusion die leads the circulation and leads outside cold source (liquid nitrogen) to the mold core outer peripheral face through the water conservancy diversion passageway through the design, from aluminium alloy internal surface rather than contact cooling, provide a low temperature inert gas assurance atmosphere, reduce the mold core outside and section bar export inner chamber surface temperature, reduce aluminium alloy inner chamber surface high-temperature oxidation emergence probability, reduce inner chamber surface particulate matter, the production of surface defects such as stripe, effectively improve aluminium alloy ex-trusions inner chamber roughness, realize extruding aluminium alloy ex-trusions inner chamber roughness and accord with customer operation requirement, need not to increase the later carriage, processing procedures such as milling, shorten process time, and the reduction in production cost improves production efficiency.
The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides an extrusion die suitable for online cooling of aluminium alloy internal surface, extrusion die is including last mould, lower mould and the backing plate that sets gradually, go up the mould including the template that has the water conservancy diversion hole, with the lower mould cooperation forms the mold core of seam room, its characterized in that: the extrusion die is still including being used for making external cold source leading-in extremely the water conservancy diversion passageway of mold core department, the water conservancy diversion passageway has the entry with the butt joint of external cold source and locates discharge port on the outer peripheral face of mold core, the warp the cold source contact that the discharge port was derived is on aluminium alloy internal surface.
2. The extrusion die suitable for online cooling of the inner surface of the aluminum profile according to claim 1, characterized in that: the discharge port has a plurality of.
3. The extrusion die suitable for online cooling of the inner surface of the aluminum profile according to claim 2, characterized in that: the plurality of discharge openings are uniformly distributed on the outer circumferential surface of the mold core at intervals along the circumferential direction.
4. The extrusion die suitable for online cooling of the inner surface of the aluminum profile according to claim 1, characterized in that: the inlet of the flow guide channel is only provided with one inlet and is arranged on one end face, far away from the lower die, of the base plate.
5. The extrusion die suitable for online cooling of the inner surface of the aluminum profile according to claim 3, wherein: the water conservancy diversion passageway is including seting up on the backing plate and with the first pore of entry intercommunication, seting up second pore on going up the mould, seting up on the mold core and connecting each a plurality of dispersion pore between discharge port and the second pore, the water conservancy diversion passageway is still including connecting first pore with at least two reposition of redundant personnel passageways between the second pore.
6. The extrusion die suitable for online cooling of the inner surface of the aluminum profile according to claim 5, characterized in that: the first pore canal extends along the thickness direction of the backing plate and is positioned on one side of the periphery of the backing plate.
7. The extrusion die suitable for online cooling of the inner surface of the aluminum profile according to claim 5, characterized in that: the second pore canal extends along the thickness direction of the upper die and is positioned in the center of the upper die.
8. The extrusion die suitable for online cooling of the inner surface of the aluminum profile according to claim 5, characterized in that: one end part of each dispersing pore canal is communicated with the second pore canal, and the other end part of each dispersing pore canal diverges and extends outwards along the radial direction of the mold core.
9. The extrusion die suitable for online cooling of the inner surface of the aluminum profile according to claim 5, characterized in that: the flow distribution channels are two in number, and the two flow distribution channels are provided with a first section arranged on one end face of the lower die, a second section penetrating between the lower die and the upper die, and a third section extending along the radial direction of the upper die.
10. The extrusion die suitable for online cooling of the inner surface of the aluminum profile according to claim 5, characterized in that: the discharge openings have 8, and the dispersion pore canal has 8 that set up with the discharge opening one-to-one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120494363.0U CN214417336U (en) | 2021-03-09 | 2021-03-09 | Extrusion die suitable for online cooling of inner surface of aluminum profile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120494363.0U CN214417336U (en) | 2021-03-09 | 2021-03-09 | Extrusion die suitable for online cooling of inner surface of aluminum profile |
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| CN214417336U true CN214417336U (en) | 2021-10-19 |
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| CN202120494363.0U Active CN214417336U (en) | 2021-03-09 | 2021-03-09 | Extrusion die suitable for online cooling of inner surface of aluminum profile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178337A (en) * | 2021-12-20 | 2022-03-15 | 江苏江顺精密科技集团股份有限公司 | One-die multi-output photovoltaic solar frame extrusion die and assembling method thereof |
-
2021
- 2021-03-09 CN CN202120494363.0U patent/CN214417336U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178337A (en) * | 2021-12-20 | 2022-03-15 | 江苏江顺精密科技集团股份有限公司 | One-die multi-output photovoltaic solar frame extrusion die and assembling method thereof |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 215143 No. 2779, Taidong Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Zhongyifeng Jinyi (Suzhou) Technology Co.,Ltd. Address before: 215143 No. 2779, Taidong Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU MINGDE ALUMINUM Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |