CN108787776B - A kind of rectangular aluminium alloy molding die with protrusion - Google Patents
A kind of rectangular aluminium alloy molding die with protrusion Download PDFInfo
- Publication number
- CN108787776B CN108787776B CN201810665994.7A CN201810665994A CN108787776B CN 108787776 B CN108787776 B CN 108787776B CN 201810665994 A CN201810665994 A CN 201810665994A CN 108787776 B CN108787776 B CN 108787776B
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- tap hole
- protrusion
- deceleration
- forming part
- runner
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of rectangular aluminium alloy molding die with protrusion, including upper die and lower die, the upper mold are equipped with common tap hole, deceleration tap hole and mold core；The lower die is equipped with shape and the matched type chamber of the rectangular aluminium alloy with protrusion to be formed, and the type chamber includes rectangle forming part and protrusion forming part；The deceleration tap hole includes positioned at the feed inlet protruded right above forming part, the discharge port connecting with protrusion forming part, and the runner of connection inlet port and outlet port；The runner is gradually inclined outwardly in radial directions from feed inlet to discharge port.By common tap hole and deceleration tap hole, the common wall thickness position to rectangle aluminium in type chamber and the position with protrusion are fed the present invention respectively, the flow velocity of melt can be controlled under same extrusion system, guarantee that common wall thickness position is consistent with the discharging speed at the position with protrusion, internal stress is reduced, finished product accuracy is improved.
Description
Technical field
The present invention relates to a kind of mold more particularly to a kind of rectangular aluminium alloy molding dies with protrusion.
Background technique
In modern material processing, aluminium alloy extruded forming technique has been widely used.It would be heated to by extruder
In the aluminium bar press-in die of certain temperature, to form different shapes.The maximum difficult point that extrusion forming faces is to guarantee aluminium
Each position keeps almost the same extruded velocity.With this condition, it just can guarantee that internal stress is uniform after Aluminum extrusion molding, stablize
The size and shape of profile.Existing mold generally passes through the extruded velocity of the length control profile of work belt, still, the method
There is the stringent scope of application, and adjustable range is narrow.Particularly with the aluminium that structure is asymmetric or wall unevenness is even, energy is adjusted
Power is limited, constrains the development of Aluminum extrusion technology.
Summary of the invention
Technical problem to be solved by the present invention lies in, a kind of rectangular aluminium alloy molding die with protrusion is provided,
The flow velocity that melt can be controlled under same extrusion system guarantees the discharging speed at common wall thickness position and the position with protrusion
Degree is consistent, reduces internal stress, improves finished product accuracy.
In order to solve the above-mentioned technical problems, the present invention provides a kind of rectangular aluminium alloy molding die with protrusion,
Including upper die and lower die, the upper mold is equipped with common tap hole, deceleration tap hole and mold core；The lower die be equipped with shape at
The matched type chamber of the rectangular aluminium alloy with protrusion of type, the type chamber includes rectangle forming part and protrudes forming part, described
Common tap hole is corresponding with the rectangle forming part, and the deceleration tap hole is corresponding with the protrusion forming part；Described slow down is divided
Discharge orifice includes positioned at the feed inlet protruded right above forming part, the discharge port connecting with protrusion forming part, and connection feed inlet
With the runner of discharge port；The runner is gradually inclined outwardly in radial directions from feed inlet to discharge port；After molding, the mould
Core protrudes into that type is intracavitary, and the type chamber is connect with bonding container, and the soldering chamber outer wall slopes inwardly, the discharging of the deceleration tap hole
The outer wall face of mouth and bonding container.
As an improvement of the above scheme, the sectional area of the feed inlet of the deceleration tap hole is greater than the sectional area of discharge port.
As an improvement of the above scheme, the gradient of side wall of the runner of the deceleration tap hole close to radial center is greater than
The gradient of side wall far from radial center.
As an improvement of the above scheme, the end of side wall of the runner of the deceleration tap hole close to radial center is equipped with perpendicular
It faces directly, the vertical plane is vertical with type chamber.
As an improvement of the above scheme, the tilt angle of the runner of the deceleration tap hole is 5-20 °.
As an improvement of the above scheme, the tilt angle of the outer wall of the bonding container is 40-50 °.
The invention has the following beneficial effects:
The present invention by common tap hole and deceleration tap hole respectively to the common wall thickness position of rectangle aluminium in type chamber and
Position feed with protrusion, the flow velocity of melt can be controlled under same extrusion system, guarantees common wall thickness position and tool
There is the discharging speed at the position of protrusion consistent, reduce internal stress, improves finished product accuracy.
Detailed description of the invention
Fig. 1 is the structure chart of the rectangular aluminium alloy for having protrusion of the invention；
Fig. 2 is the structural schematic diagram of the mated condition of upper die and lower die of the invention；
Fig. 3 is the face the A-A cross-sectional view of the upper mold of Fig. 2；
Fig. 4 is lower die structure schematic diagram of the invention；
Fig. 5 is lower die structure cross-sectional view of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.Only this is stated, the present invention occurs in the text or will occur up, down, left, right, before and after, it is inside and outside etc. just
Position word is not to specific restriction of the invention only on the basis of attached drawing of the invention.
As Figure 1-Figure 5, the embodiment of the invention provides a kind of rectangular aluminium alloy molding die with protrusion, packet
Upper mold 1 and lower die 2 are included, the upper mold 1 is equipped with common tap hole 3, deceleration tap hole 4 and mold core 5；The lower die 2 is equipped with shape
With the matched type chamber 6 of the rectangular aluminium alloy with protrusion to be formed, the type chamber 6 include rectangle forming part 61 and protrusion at
Type portion 62, the common tap hole 3 is corresponding with the rectangle forming part 61, the deceleration tap hole 4 and the protrusion forming part
62 is corresponding；The deceleration tap hole 4 includes connecting positioned at the feed inlet 41 of 62 surface of protrusion forming part, with protrusion forming part 62
Discharge port 42, and connection feed inlet 41 and discharge port 42 runner 43；The runner 43 is from feed inlet 41 to discharge port 42
It is gradually inclined outwardly in radial directions；After molding, the mold core 5 is protruded into type chamber 6, and the type chamber 6 is connect with bonding container 7,
7 outer wall of bonding container slopes inwardly, the discharge port 42 of the deceleration tap hole 4 and the outer wall face of bonding container 7.
The present invention is by common tap hole 3 and deceleration tap hole 4 respectively to the common wall thickness position of rectangle aluminium in type chamber 6
With with protrusion position feed, the flow velocity of melt can control under same extrusion system, guarantee common wall thickness position with
The discharging speed at the position with protrusion is consistent, reduces internal stress, improves finished product accuracy.
According to embodiments of the present invention, the sectional area of the feed inlet 41 of the deceleration tap hole 4 is greater than the section of discharge port 42
Product.The runner 43 of the deceleration tap hole 4 is greater than the side wall far from radial center close to the gradient of the side wall 431 of radial center
432 gradient.By different changes of section and flow direction variation, extend the flow distance of melt, while increasing the stream of melt
Dynamic resistance.Preferably, the runner 43 of the deceleration tap hole 4 is equipped with vertical plane close to the end of the side wall 431 of radial center
433, the vertical plane 433 is vertical with type chamber 6.The vertical plane 433 is connect with inclined runner 43, makes 43 end of deceleration runner
The barrier structure 434 crossed out is formed, the flow velocity of melt is further decreased.
According to actual needs, the tilt angle of the runner 43 of the deceleration tap hole 4 is 5-20 °, matched, the weldering
The tilt angle for closing the outer wall of room 7 is 40-50 °.
Working principle of the present invention is as follows:
Before extruding, upper mold 1 and lower die 2 molding be packed into extruder in, aluminium alloy melt extruder pressure effect under from
The tap hole of upper mold 1 enters, and the upper mold 1 is equipped with common tap hole 3 and deceleration tap hole 4.By common tap hole 3 and slow down
The common wall thickness position to rectangle aluminium in type chamber 6 and the position with protrusion are fed tap hole 4 respectively, due to having protrusion
The position section in portion is larger, and the section at common wall thickness position is smaller, if the feeding speed of the two is identical, the portion with protrusion
The extruded velocity of position can be obviously faster than common wall thickness position, leads to forming defect.Using the present embodiment structure, melt is by passing through
The different changes of section of deceleration tap hole 4 and flow direction variation, extend the flow distance of melt, while passing through above-mentioned barrier structure,
The flow resistance for increasing melt, keeps the melt resistance for the type chamber 6 for being passed through the position with protrusion larger, after the two balance, type
The extruded velocity of chamber 6 is consistent.
Melt carries out soldering after the shunting of tap hole, into bonding container 7, finally in inflow type chamber 6, in work belt
Secondary Control effect is lower to squeeze the rectangular aluminium alloy for being formed and having protrusion.By above-mentioned forming method, the square with protrusion
The melt demand of shape aluminium alloy different location is targetedly met, and the internal stress for squeezing finished product, aluminium after extrusion forming are reduced
Material cooling procedure will not secondary deformation.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (3)
1. a kind of rectangular aluminium alloy molding die with protrusion, which is characterized in that including upper die and lower die, the upper mold is set
There are common tap hole, deceleration tap hole and mold core；
The lower die is equipped with shape and the matched type chamber of the rectangular aluminium alloy with protrusion to be formed, and the type chamber includes square
Shape forming part and protrusion forming part, the common tap hole is corresponding with the rectangle forming part, the deceleration tap hole with it is described
It is corresponding to protrude forming part；
The deceleration tap hole include feed inlet right above protrusion forming part, with protrude the discharge port that connect of forming part,
And the runner of connection inlet port and outlet port；
The runner is gradually inclined outwardly in radial directions from feed inlet to discharge port；
After molding, the mold core protrudes into that type is intracavitary, and the type chamber is connect with bonding container, and the soldering chamber outer wall slopes inwardly, institute
State the discharge port of deceleration tap hole and the outer wall face of bonding container；
The sectional area of the feed inlet of the deceleration tap hole is greater than the sectional area of discharge port；
The gradient of side wall of the runner of the deceleration tap hole close to radial center is greater than inclining for the side wall far from radial center
Gradient.
2. mold as described in claim 1, which is characterized in that the tilt angle of the runner of the deceleration tap hole is 5-20 °.
3. mold as claimed in claim 2, which is characterized in that the tilt angle of the outer wall of the bonding container is 40-50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665994.7A CN108787776B (en) | 2018-06-26 | 2018-06-26 | A kind of rectangular aluminium alloy molding die with protrusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665994.7A CN108787776B (en) | 2018-06-26 | 2018-06-26 | A kind of rectangular aluminium alloy molding die with protrusion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108787776A CN108787776A (en) | 2018-11-13 |
| CN108787776B true CN108787776B (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810665994.7A Active CN108787776B (en) | 2018-06-26 | 2018-06-26 | A kind of rectangular aluminium alloy molding die with protrusion |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110465554B (en) * | 2019-06-28 | 2020-11-03 | 广东伟业铝厂集团有限公司 | Forming die of large-section thick-wall aluminum alloy profile |
| CN113732096A (en) * | 2021-08-13 | 2021-12-03 | 广东伟业铝厂集团有限公司 | Aluminum product forming die with adjustable local temperature |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002028717A (en) * | 2000-07-14 | 2002-01-29 | Daitekku:Kk:Kk | Extrusion machine |
| CN201120416Y (en) * | 2007-08-31 | 2008-09-24 | 江阴市江顺模具有限公司 | Hot extrusion mold for deep-groove aluminium section bar |
| CN201271667Y (en) * | 2008-09-01 | 2009-07-15 | 江阴市江顺模具有限公司 | Hot extrusion die for control box of electric vehicle |
| CN201271666Y (en) * | 2008-09-01 | 2009-07-15 | 江阴市江顺模具有限公司 | Mouth spliced hot extrusion die |
| JP5641833B2 (en) * | 2010-09-07 | 2014-12-17 | 昭和電工株式会社 | Extrusion dies |
| CN203108964U (en) * | 2013-04-02 | 2013-08-07 | 慈溪市宜美佳电器有限公司 | Aluminum sectional material hot extrusion mold |
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| CN108787776A (en) | 2018-11-13 |
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