CN210936499U - Aluminum alloy thin wall product forming die - Google Patents
Aluminum alloy thin wall product forming die Download PDFInfo
- Publication number
- CN210936499U CN210936499U CN201921617300.9U CN201921617300U CN210936499U CN 210936499 U CN210936499 U CN 210936499U CN 201921617300 U CN201921617300 U CN 201921617300U CN 210936499 U CN210936499 U CN 210936499U
- Authority
- CN
- China
- Prior art keywords
- die
- wall
- material storage
- aluminum alloy
- storage cavity
- 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.)
- Active
Links
Images
Landscapes
- Extrusion Of Metal (AREA)
- Continuous Casting (AREA)
Abstract
A forming die for an aluminum alloy thin-wall product comprises an upper die and a lower die, wherein a material storage cavity is arranged on the upper die, four feeding holes which are annularly arranged are formed in the material storage cavity, and a die core is arranged in the middle of the material storage cavity; the outer ring of the material storage cavity is provided with a circle of pressure reducing bridge, and the pressure reducing bridge separates the feeding hole from the side wall of the material storage cavity; one side of going to the mould on the lower mould is equipped with the seam room, the intermediate position of seam room is equipped with the one-tenth die cavity, the tip of mold core is arranged in this one-tenth die cavity, and the tip periphery of mold core is last work area, the inside wall that becomes the die cavity is work area down. In this application, aluminium alloy liquid/aluminium bar enters into four feed ports from the material stock chamber of last mould, then enters into the welding room, and extrusion is the aluminium alloy thin wall product in the shaping chamber at last. The pressure reducing bridge is additionally arranged in the application, the diameter of the pressure reducing bridge is slightly larger than the diameter of the bar, the pressure reducing bridge can completely cover the aluminum bar, the problem that the water leakage of the die is serious is solved, and the product quality is improved.
Description
Technical Field
The utility model belongs to section bar extrusion die field, concretely relates to aluminum alloy thin wall product forming die.
Background
The resources of aluminum in the earth crust are very abundant, so that aluminum is used next to steel in the industry at present, and is the second largest metal. The metal aluminum has special chemical and physical properties, light weight, firm texture, good ductility, conductivity and heat resistance, and is an important basic raw material in national economic development.
Aluminum profiles are a large class of aluminum products and are widely used in the fields of construction, automotive, industry, and the like. In some application fields, thin-wall aluminum alloy sections or aluminum alloy pipes are required, the requirement on the quality of products is high, and the product quality can be seriously influenced by a small amount of defects. The aluminum alloy thin-wall products are generally formed by extrusion through a die, and in the extrusion forming process, because the aluminum alloy has strong plasticity, the aluminum alloy is unstable during extrusion and easily causes the problem of water leakage of the die; in addition, in the extrusion process, the surface problem of the extruded finished product is serious, color difference is easy to generate, and coarse crystals are easy to generate in annealing, so that the coarse crystal structure of the product is obvious.
Therefore, based on the above problems, the present invention provides a mold for forming thin-walled aluminum alloy products, which is further designed and studied in order to solve one or more of the above problems.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an aluminum alloy thin-wall product forming die, which solves the problem of serious water leakage of the die by the design of a pressure reducing bridge in the die; meanwhile, the length of the working band and the depth of the welding chamber are adjusted, so that coarse crystals generated during annealing are reduced, the welding performance of the die is improved, and the product quality is high.
In order to solve the above technical problem, the present invention solves the above technical problems.
A forming die for an aluminum alloy thin-wall product comprises an upper die and a lower die, wherein a material storage cavity is arranged on the upper die, four feeding holes which are annularly arranged are formed in the material storage cavity, and a die core is arranged in the middle of the material storage cavity; the outer ring of the material storage cavity is provided with a circle of pressure reducing bridge, and the pressure reducing bridge separates the feeding hole from the side wall of the material storage cavity; one side of going to the mould on the lower mould is equipped with the seam room, the intermediate position of seam room is equipped with the one-tenth die cavity, the tip of mold core is arranged in this one-tenth die cavity, and the tip periphery of mold core is last work area, the inside wall that becomes the die cavity is work area down.
In this application, aluminium alloy liquid/aluminium bar enters into four feed ports from the material stock chamber of last mould, then enters into the welding room, and extrusion is the aluminium alloy thin wall product in the shaping chamber at last. In this application, increased the decompression bridge before the material storage chamber, the diameter of decompression bridge slightly is greater than the stick footpath to make it can totally cladding aluminium bar, solved the serious problem of mould water leakage, improved product quality.
In a preferred embodiment, the cross section of the feeding holes is in a sector shape with arc chamfers, and the four feeding holes are symmetrically arranged on the periphery of the mold core.
In a preferred embodiment, the depth of the welding chamber is 20mm to 21 mm. In traditional mould, the degree of depth of seam room is 17mm ~18mm, in this application, about having increased the degree of depth of seam room 3mm, through deepening the seam degree of depth, extension seam time, can further improve the performance of seam, improve product quality.
In a preferred embodiment, the length of the upper working belt is 2.4 mm-2.5 mm, and the length of the lower working belt is 1.9 mm-2.1 mm. In the traditional die, the length of an upper working belt is generally 4mm, and is shortened by about 1.5mm in the application; in traditional mould, the length of lower working tape is 3mm generally, has shortened about 1mm in this application. In the application, the upper and lower working belts are shortened, the time for aluminum flow to pass through the working belts is shortened, the annealing process is quickened, the generation of coarse crystals is reduced, and the product quality is high.
In a preferred embodiment, the weld chamber has an alternating convex and concave contour, with a total of four symmetrically arranged projections corresponding to the position of the feed openings. The structure ensures that the aluminum liquid is stable when flowing, does not cause product backlog, turbulent flow and the like, and ensures that the profile has high quality.
In a preferred embodiment, the width of the pressure reducing bridge is 0.9 mm-1.1 mm, namely about 2mm larger than the diameter of the bar, and the pressure reducing bridge can completely coat the aluminum bar, so that the problem of serious water leakage of the die is solved.
In a preferred embodiment, in the upper die, the feeding hole has an inclined inner wall, and the inclination angle b of the inner wall is 6-8 °.
In a preferred embodiment, a boss is arranged on one surface of the upper die facing the lower die, and a concave platform is arranged on one surface of the lower die facing the upper die; the boss can be clamped into the concave table to realize assembly, the stability is high after assembly, and the probability of wall deviation is reduced.
Compared with the prior art, the utility model discloses following beneficial effect has: the forming die for the aluminum alloy thin-wall product is provided, and the problem of serious water leakage of the die is solved by designing the pressure reducing bridge in the die; meanwhile, the length of the working band and the depth of the welding chamber are adjusted, so that coarse crystals generated during annealing are reduced, the welding performance of the die is improved, and the product quality is high.
Drawings
Fig. 1 is a front view of a lower mold of the present invention.
Fig. 2 is a side view of the lower mold of the present invention.
Fig. 3 is a front view of the upper mold of the present invention.
Fig. 4 is a side view of the upper die of the present invention.
Fig. 5 is a schematic front view of the upper and lower dies of the present invention after being assembled.
Fig. 6 is a side sectional view of the upper and lower molds after being closed.
Fig. 7 is an enlarged view of the area a in fig. 6.
Fig. 8 is a first schematic view of an extrusion apparatus according to an embodiment of the present invention.
Fig. 9 is a second schematic view of an extrusion apparatus according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not construed as limiting the present invention, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
In the description of the present invention, it is to be understood that the term: the center, vertically, transversely, length, width, thickness, upper and lower, preceding, back, left and right, vertical, level, top, end, inside and outside, clockwise, anticlockwise etc. indicate position or positional relationship for based on the position or positional relationship that the drawing shows, just for the convenience of description the utility model discloses and simplified description, consequently can not be understood as the restriction of the utility model. Furthermore, the terms: first, second, etc. 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 shown. In the description of the present invention, unless explicitly stated or limited otherwise, the terms: mounting, connecting, etc. are to be understood broadly and those skilled in the art will understand the specific meaning of the terms in this application as they pertain to the particular situation.
Referring to fig. 1 to 9, the aluminum alloy thin-wall product forming die comprises an upper die 2 and a lower die 1, wherein the upper die 2 is provided with a material storage cavity 22, four feeding holes 21 are formed in the material storage cavity 22 in an annular manner, and a die core 23 is arranged in the middle of the material storage cavity 22; a circle of pressure reducing bridge 24 is arranged on the outer ring of the material storage cavity 22, and the pressure reducing bridge 24 separates the feeding hole 21 from the side wall of the material storage cavity 22; one side of going towards last mould 2 on lower mould 1 is equipped with seam room 12, the intermediate position of seam room 12 is equipped with into die cavity 11, the tip of mold core 23 is arranged in this becomes die cavity 11, and the tip periphery of mold core 23 is last work area 231, the inside wall that becomes die cavity 11 is lower work area 121.
Specifically, in this application, the cross-section of feed port 21 is for having the fan-shaped of arc chamfer, and four feed port 21 symmetries set up around mold core 23, and this structure makes the feeding stable, and the velocity of flow is balanced, and no beat, product quality is high. The weld chamber 12 has an alternating contour of projections 122 and recesses 123, with a total of four symmetrically arranged projections 122, said projections 122 corresponding to the position of the inlet openings 21. The structure ensures that the aluminum liquid is stable when flowing, does not cause product backlog, turbulent flow and the like, and ensures that the profile has high quality.
In the present embodiment, the depth of the welding chamber 12 is 20mm to 21 mm. In traditional mould, the degree of depth of seam room is 17mm ~18mm, and in this application, the degree of depth with seam room 12 has increased about 3mm, through deepening the seam degree of depth, prolongs the seam time, can further improve the performance of seam, improves product quality. The length of the upper working belt 231 is 2.4 mm-2.5 mm, and the length of the lower working belt 121 is 1.9 mm-2.1 mm. In the traditional die, the length of an upper working belt is generally 4mm, and is shortened by about 1.5mm in the application; in traditional mould, the length of lower working tape is 3mm generally, has shortened about 1mm in this application. In the application, the upper and lower working belts are shortened, the time for aluminum flow to pass through the working belts is shortened, the annealing process is quickened, the generation of coarse crystals is reduced, and the product quality is high.
In addition, in this application, decompression bridge 24's width is 0.9mm ~1.1mm, also about 2mm is bigger than aluminium bar diameter d to the diameter c of decompression bridge 24 also to make it can totally wrap up the aluminium bar, solved the serious problem of mould water leakage. In the upper die 2, the feeding hole 21 is provided with an inclined inner wall, and the inclination angle b of the inner wall is 6-8 degrees, so that the aluminum material flows stably. In the application, a boss 25 is arranged on one surface of the upper die 2 facing the lower die 1, and a concave platform 13 is arranged on one surface of the lower die 1 facing the upper die 2; the boss 25 can be clamped into the concave table 13 to realize assembly, the stability is high after assembly, and the probability of wall deviation is reduced.
In the application, aluminum alloy liquid/aluminum bar enters into four feed ports 21 from the material storage cavity 22 of the upper die 2, then enters into the welding chamber 12, and finally is extruded and formed into an aluminum alloy thin-wall product from the forming cavity 11. In the application, the pressure reducing bridge 24 is additionally arranged in front of the material storage cavity 22, the diameter of the pressure reducing bridge 24 is slightly larger than the diameter of the rod, the aluminum rod can be completely coated by the pressure reducing bridge, the problem that the water of the die is serious is solved, and the product quality is improved.
Fig. 8 and 9 are schematic views of an extrusion apparatus in an embodiment of the present application, and it can be seen that the extrusion apparatus includes an extrusion molding apparatus, a profile supporting apparatus, and a profile cooling apparatus, wherein the specific structure is as follows.
The profile supporting device is arranged outside the extrusion port and used for supporting the extruded profile; the section bar supporting device comprises a supporting frame 91 and a supporting roller 92 arranged on the supporting frame 91, and in the application, three section bar supporting devices are arranged, so that the section bar supporting effect is good.
The section cooling device comprises an upper blowing fan 4 and a lower blowing fan 5, wherein the upper blowing fan 4 and the lower blowing fan 5 face the extruded section. Specifically, the number of the upper blowing fans 4 is two, the two upper blowing fans 4 are slidably arranged on the upper sliding rod 44, and the number of the lower blowing fans 5 is two. An upper base 43 of the upper blowing fan 4 is arranged on an upper lead screw 41, and the upper lead screw 41 is driven to rotate by an upper motor 42. The lower base 53 of the lower blowing fan 5 is arranged on the lower lead screw 51, and the lower lead screw 51 is driven by the lower motor 52 to rotate. The cooling effect is good, the position of the upper and lower blowing fans can be conveniently adjusted through the rotation of the upper and lower screw rods, and the cooling effect is improved through selecting the most appropriate position.
The motor circuit connection mode, the motor control mode, the extrusion control device and the like in the application are conventional technologies in the field, and description is not given. In this application, blow the cooling through fan of blowing from top to bottom to just extrusion's section bar, increased cooling rate, improved section bar surface quality.
The forming die for the aluminum alloy thin-wall product is provided, and the problem of serious water leakage of the die is solved by designing the pressure reducing bridge in the die; meanwhile, the length of the working band and the depth of the welding chamber are adjusted, so that coarse crystals generated during annealing are reduced, the welding performance of the die is improved, and the product quality is high.
The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.
Claims (8)
1. The utility model provides an aluminum alloy thin wall product forming die, includes mould (2) and lower mould (1), its characterized in that:
a material storage cavity (22) is formed in the upper die (2), four feeding holes (21) are formed in the material storage cavity (22) in an annular mode, and a die core (23) is arranged in the middle of the material storage cavity (22); a circle of pressure reducing bridge (24) is arranged on the outer ring of the material storage cavity (22), and the pressure reducing bridge (24) separates the feeding hole (21) from the side wall of the material storage cavity (22);
one side of going up mould (2) towards on lower mould (1) is equipped with seam room (12), the intermediate position of seam room (12) is equipped with into die cavity (11), the tip of mold core (23) is arranged in this becomes die cavity (11), and the tip periphery of mold core (23) is for going up work area (231), the inside wall that becomes die cavity (11) is for working area (121) down.
2. The forming die for the aluminum alloy thin-wall products as recited in claim 1, wherein the cross section of the feeding holes (21) is in a sector shape with an arc chamfer, and four feeding holes (21) are symmetrically arranged around the die core (23).
3. The forming die for the aluminum alloy thin-wall product as recited in claim 1, wherein the depth of the welding chamber (12) is 20 mm-21 mm.
4. The forming die for the thin-wall aluminum alloy product as claimed in claim 1, wherein the length of the upper working belt (231) is 2.4-2.5 mm, and the length of the lower working belt (121) is 1.9-2.1 mm.
5. An aluminium alloy thin wall product forming die according to claim 1, characterized in that the welding chamber (12) has a profile with alternating protrusions (122) and recesses (123), and there are four symmetrically distributed protrusions (122), and the protrusions (122) correspond to the positions of the feeding holes (21).
6. The forming die for the aluminum alloy thin-wall product as recited in claim 1, wherein the width of the pressure reducing bridge (24) is 0.9 mm-1.1 mm.
7. The forming die for the thin-wall aluminum alloy product as claimed in claim 1, wherein in the upper die (2), the feeding hole (21) has an inclined inner wall, and the inclination angle b of the inner wall is 6-8 degrees.
8. The forming die for the aluminum alloy thin-wall product is characterized in that a boss (25) is arranged on one surface, facing the lower die (1), of the upper die (2), and a concave table (13) is arranged on one surface, facing the upper die (2), of the lower die (1); the projection (25) can be snapped into the recess (13) for assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921617300.9U CN210936499U (en) | 2019-09-26 | 2019-09-26 | Aluminum alloy thin wall product forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921617300.9U CN210936499U (en) | 2019-09-26 | 2019-09-26 | Aluminum alloy thin wall product forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210936499U true CN210936499U (en) | 2020-07-07 |
Family
ID=71370200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921617300.9U Active CN210936499U (en) | 2019-09-26 | 2019-09-26 | Aluminum alloy thin wall product forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210936499U (en) |
-
2019
- 2019-09-26 CN CN201921617300.9U patent/CN210936499U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204135100U (en) | Thin cylinder cylinder extrusion die | |
| CN210936499U (en) | Aluminum alloy thin wall product forming die | |
| CN207709564U (en) | A kind of L-type tubulose extruding die for aluminum shaped material | |
| CN104174681A (en) | An aluminum alloy hot extrusion mold for producing a hooked rabbet section | |
| CN212551071U (en) | Extrusion die suitable for wide thin-wall multi-cavity aluminum profile | |
| CN108927417A (en) | The hot-pressed mold of abnormity depth chamber labyrinth bracket and manufacturing process | |
| CN108787776B (en) | A kind of rectangular aluminium alloy molding die with protrusion | |
| CN210936498U (en) | Porous profile molding die | |
| CN107282680B (en) | Flow guiding protection type extrusion die | |
| CN207308611U (en) | A kind of heavy in section thin-walled extruding die for aluminum shaped material | |
| CN203265286U (en) | Aluminum alloy hot extrusion die for producing hook rabbet sections | |
| CN207681197U (en) | A kind of rectangular tubular extruding die for aluminum shaped material | |
| CN201220247Y (en) | Hot-extrusion mould for aluminum alloy section bar | |
| CN110814077B (en) | Quick-change forming die for preparing large-caliber magnesium alloy pipe | |
| CN207343470U (en) | Multistage bonding container extrusion die | |
| CN112246906A (en) | Ultrathin strip extrusion die | |
| CN201792470U (en) | Sealing rubber strip forming die for door and window curtain walls | |
| CN207823593U (en) | A kind of square aluminum material extrusion die of the more circular holes of band | |
| CN217748710U (en) | Stop block type extrusion die | |
| CN220426343U (en) | Rectangular tubular section aluminum extrusion die | |
| CN207756625U (en) | A kind of perforated tubular extruding die for aluminum shaped material | |
| CN210435312U (en) | Piston casting die utensil and exhaust structure | |
| CN214719468U (en) | Aluminum extrusion die for automobile anti-collision beam | |
| CN219483798U (en) | Square tube extrusion die | |
| CN215314774U (en) | Four-hole type profile extrusion die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |