CN203209463U - Seamless extrusion die of small-diameter aluminum alloy pipe - Google Patents
Seamless extrusion die of small-diameter aluminum alloy pipe Download PDFInfo
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- CN203209463U CN203209463U CN 201320091611 CN201320091611U CN203209463U CN 203209463 U CN203209463 U CN 203209463U CN 201320091611 CN201320091611 CN 201320091611 CN 201320091611 U CN201320091611 U CN 201320091611U CN 203209463 U CN203209463 U CN 203209463U
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- alloy pipe
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Abstract
The utility model provides a seamless extrusion die of a small-diameter aluminum alloy pipe. The seamless extrusion die comprises a convex die mounted on a concave die, wherein the convex die is provided with a shunt bridge which is communicated with a material inlet; an inclined surface part which is used for conveying materials and realizing secondary melting is arranged at the front end of the shunt bridge; a calibrating strap is connected to the front end of the inclined surface part; a melting part is arranged between the inclined surface part and the calibrating strap; a melting chamber which forms a cavity together with the melting part is arranged in the concave die; a flow return and stop platform for secondary melting of a hot-melted aluminum material is arranged in the melting chamber; the flow return and stop platform and the inclined surface part are shaped as various structures depending on a design demand; aluminum melt is guided to the flow return and stop platform of the melting part through the inclined surface part, so that the aluminum metal which is primarily melted on the shunt bridge is refluxed and melted once again into an integral body which is consistent in metal tissue density and is extruded into the calibrating strap of the sectional cavity, and the aluminum metal is outputted in the form of a seamless aluminum alloy pipe finally.
Description
Technical field
The utility model relates to the making mould applications, relates in particular to the seamless extrusion die of the smaller tubule footpath aluminium alloy pipe of a kind of circumscribed circle.
Background technology
For the factory that produces parts or accessory, mould is taken on an important responsibility, traditional mold making technology is to import China in the eighties in 20th century into by Germany and Japan, known extruding die for aluminum shaped material is referring to Fig. 1, a kind of diffluence combination die tool that comprises die 1 and punch 2, die has seam shaping area 11 and discharging opening 12 as the moulding discharging part of extrusion metal.Punch 2 is as the feeding end of extrusion metal, be provided with feeding mouth 21, seam district 22, die cavity discharging opening 12, feeding mouth 21 is provided with shunting bridge 24, after making aluminium bar enter into shunting bridge 24 from feeding mouth 21, shunting flows into seam district 22 and converges, directly go into to have 11 moulding of seam shaping area, extrude from discharging opening 12 at last.The aluminium pipe material that this traditional metal flow seam designing technique is produced, shunt the seam bit line place of bridge 24 at each bar because of metal flow blind area under the bridge, cause that the metal structure of blind area loosens in the zone that flings of feeding mouth 12 under the bridge, just there is the seam line in the aluminum pipe of extruding, the quantity of the shunting bridge 24 of this type of mould design equals seam line quantity, especially the extrusion ratio coefficient of aluminum products is lower than at 50 o'clock, because metal flow process resistance is too small fails abundant fusion and just is squeezed out shaping area 11, it is very obvious to be directed at the aluminum pipe seam line of producing, cause tube wall not to be tightly connected, the particularly outstanding heated aluminium of the structure of this die and punch is in " directly going into ", the production technology that " directly goes out ", and seriously limited seam space in the tube forming process.
Summary of the invention
The utility model provides the seamless extrusion die of a kind of tubule footpath aluminium alloy pipe, and its main purpose is to provide a kind of can produce the aluminium section bar pipe mold that does not have the fusion seam, the seam that produces when easily solving traditional mode of production aluminum pipe seam problem.
Therefore, the utility model comprises the punch that is installed on the die, described punch is provided with the shunting bridge that is communicated with charging aperture, the front end of described shunting bridge is provided with the inclined plane part that merges for the realization secondary that transmits material, the front end of described inclined plane part connects a calibrating strap, be provided with fusion portion between this inclined plane part and the calibrating strap, in die, be provided with the fusion chamber that becomes a cavity with fusion portion, the indoor backflow choked flow platform that merges for secondary behind the aluminium hot melt that is provided with of this fusion.
Described shunting bridge is even number bar structure, or is odd structure, forms tap hole between shunting bridge and the shunting bridge, and the delivery outlet of described tap hole connects described inclined plane part.
Described inclined plane part is cone inclined-plane for cone shape at the pipe mould, and this inclined plane part then is assembled to the backflow choked flow platform on the cone inclined-plane with cone shape; Be the cone inclined-plane of Pyramid when the square tube mould designs, this inclined plane part then is assembled to the backflow choked flow platform on the cone inclined-plane with Pyramid; Be curved surface cone inclined-plane when being used in the Mould design of special section tubular product, this inclined plane part then is assembled to the backflow choked flow platform with curved surface cone inclined-plane.
Tap hole on the described punch is positioned at the high position of this inclined plane part relatively, send the fusion portion of material to relative lower position by this high position cunning.The peak of inclined plane part is 5-30 millimeters to the height B 2 of fusion portion.
Described fusion portion is provided with the backflow position of circular surface, and this backflow position forms the converging the position of material and is connected with calibrating strap.
The base plane of described die design in the die chamber is provided with the backflow choked flow platform that drainage aluminum metal secondary merges, and described backflow choked flow platform is 3～15 millimeters apart from the height of described die inwall.
This backflow choked flow platform is columnar structured when being applied in the design of circular aluminum pipe mould; Be square tubular structure when being applied in the design of square aluminum pipe mold; Be special-shaped tubular structure when being applied in the design of special-shaped aluminum pipe mould.
The beneficial effects of the utility model are that the delivery outlet of tap hole connects inclined plane part, make the aluminum metal that heat is melted into liquid state lead to the position of refluxing smoothly, the backflow choked flow platform of this die fusion chamber is to be tubular structure, liquid aluminium is flowed by this tubular direction, while is spacing according to the punch calibrating strap, proportionately tubular water conservancy diversion output at last, by the detention backflow platform of inclined plane part guiding aluminum metal to fusion portion, the aluminum metal that fuses in the first portion in shunting bridge place is refluxed again fuse into the monolithic extruded die cavity calibrating strap that enters of metal structure consistent in density, finally export with the seamless Al-alloy pipe material.
Description of drawings
Fig. 1 is the schematic diagram of traditional male and female mold.
Fig. 2 is stereogram of the present utility model.
Fig. 3 is the plan view of Fig. 2.
Fig. 4 is the work schematic diagram of the utility model.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing, the utility model comprises the punch 1 that is installed on the die 7 as shown in Figure 2, described punch 1 is provided with the shunting bridge 2 that is communicated with charging aperture, the front end of described shunting bridge 2 is provided with the inclined plane part 3 that merges for the realization secondary that transmits material, the front end of described inclined plane part 3 connects a calibrating strap 4, be provided with fusion portion 5 between this inclined plane part 3 and the calibrating strap 4, in die 7, be provided with the fusion chamber 8 with 5 one-tenth one cavitys of fusion portion, be provided with the backflow choked flow platform 6 that merges for secondary behind the aluminium hot melt in this fusion chamber 8, the peak of inclined plane part 3 is 5～30 millimeters to the height B 2 of fusion portion 5.
Described shunting bridge 2 is even number bar structure, or be odd structure, form tap hole 21 between shunting bridge 2 and the shunting bridge 2, the delivery outlet of described tap hole 21 connects described inclined plane part 3, the inclined plane part 3 of punch 1 is cone inclined-plane for cone shape at the pipe mould, 3 of this inclined plane parts are assembled to has backflow choked flow platform 6 cylindraceous, and the fusion portion 5 of described punch 1 is provided with the backflow position 51 on circular cone inclined-plane, and this backflow position 51 forms the converging the position of material and is connected with calibrating strap 4; This inclined plane part 3 is the cone inclined-plane for Pyramid at square tube mould (or square aluminum alloy pipe mould), and 3 of this inclined plane parts are assembled to the backflow choked flow platform 6 with square tubular; Being applied on the mould of special-shaped aluminium alloy pipe is to be curved surface cone inclined-plane, and 3 of this inclined plane parts are assembled to the backflow choked flow platform 6 with special-shaped tubular, and described backflow choked flow platform 6 is 3～15 millimeters apart from the height B 1 of described die 7 inwalls.
As shown in Figure 2 in the secondary alloying process of punch 1, the aluminum metal that flows into from each tap hole 21 flow through the seam district converge by inclined plane part 3 streams send material realization time to the process of the fusion portion 5 of lower position relatively go up and the space on fusion once again.
Go out concrete workflow of the present utility model as shown in Figure 4, punch 1 is installed on the die, aluminium is melted by heat from charging aperture and is delivered to tap hole 21, again through flowing to fusion portion 5 with inclined plane part 3, meeting backflow choked flow platform B1 when touching die fusion 8 planes, chamber refluxes aluminum metal to realize and fuses into the uniform aluminum metal of bulk metal tissue density once again in the die 7 fusion chambeies, again via calibrating strap 4 extruding outputs, calibrating strap 4 refers to make by the aluminum metal behind the hot melt extrudes the tubing that forms in the position of diameter dimension according to the rules, in the middle of it should be noted that, die 7 interfixes with calibrating strap 4, the aluminum pipe of the predetermined thickness that the aluminum metal of being melted by heat can only be formed by the combining harmoniously of calibrating strap 4 of the calibrating strap of die 7 and punch 1, in Fig. 4 structure, when aluminium flows to die 7 positions, what be the serpentine shape flow to calibrating strap 4 places, make aluminum metal that fusion on more room and times be arranged, seam, make the metal structure compactness extent uniformity at each position of output aluminum metal, fully after the fusion well, can reach the purpose of eliminating the seam seam.
Above-mentioned specific embodiment only is the utility model effect specific embodiment preferably, and the seamless extrusion die of all or tubule that be equal to footpath aluminium alloy pipes identical with this structure is all in the application's protection domain.
Claims (8)
1. the seamless extrusion die of tubule footpath aluminium alloy pipe, it comprises the punch (1) that is installed on the die (7), described punch (1) is provided with the shunting bridge (2) that is communicated with charging aperture, it is characterized in that: the front end of described shunting bridge (2) is provided with the inclined plane part (3) that merges for the realization secondary that transmits material, the front end of described inclined plane part (3) connects a calibrating strap (4), be provided with fusion portion (5) between this inclined plane part (3) and the calibrating strap (4), in die (7), be provided with the fusion chamber (8) that becomes a cavity with fusion portion (5), be provided with the backflow choked flow platform (6) that merges for secondary behind the aluminium hot melt in this fusion chamber (8).
2. the seamless extrusion die of tubule according to claim 1 footpath aluminium alloy pipe, it is characterized in that: described shunting bridge (2) is even number bar structure, or be odd structure, form tap hole (21) between shunting bridge (2) and the shunting bridge (2), the delivery outlet of described tap hole (21) connects described inclined plane part (3).
3. the seamless extrusion die of tubule according to claim 1 footpath aluminium alloy pipe, it is characterized in that: described inclined plane part (3) is cone inclined-plane for cone shape at the pipe mould, and this inclined plane part (3) then is assembled to has backflow choked flow platform cylindraceous (6).
4. the seamless extrusion die of tubule according to claim 1 footpath aluminium alloy pipe, it is characterized in that: described inclined plane part (3) is cone inclined-plane for Pyramid at the square tube mould, and this inclined plane part (3) then is assembled to the backflow choked flow platform (6) with square tubular.
5. the seamless extrusion die of tubule according to claim 1 footpath aluminium alloy pipe, it is characterized in that: described inclined plane part (3) is to be curved surface cone inclined-plane at the shape tube mould, and this inclined plane part (3) then is assembled to the backflow choked flow platform (6) with special-shaped tubular.
6. the seamless extrusion die of tubule according to claim 2 footpath aluminium alloy pipe, it is characterized in that: the tap hole (21) of described punch (1) is positioned at the high position of this inclined plane part (3) relatively, send the fusion chamber (8) of material to relative lower position by this high position cunning, the peak of inclined plane part (3) is 5～30 millimeters to the height of fusion portion (5).
7. the seamless extrusion die of tubule according to claim 1 footpath aluminium alloy pipe, it is characterized in that: the fusion portion (5) of described punch (1) is provided with the backflow position (51) on circular cone inclined-plane, and this backflow position (51) forms the converging the position of material and is connected with calibrating strap (4).
8. the seamless extrusion die of tubule according to claim 1 footpath aluminium alloy pipe, it is characterized in that: described backflow choked flow platform (6) is 3～15 millimeters apart from the height of described die (7) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320091611 CN203209463U (en) | 2013-02-28 | 2013-02-28 | Seamless extrusion die of small-diameter aluminum alloy pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320091611 CN203209463U (en) | 2013-02-28 | 2013-02-28 | Seamless extrusion die of small-diameter aluminum alloy pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203209463U true CN203209463U (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320091611 Expired - Fee Related CN203209463U (en) | 2013-02-28 | 2013-02-28 | Seamless extrusion die of small-diameter aluminum alloy pipe |
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| Country | Link |
|---|---|
| CN (1) | CN203209463U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424186A (en) * | 2016-07-20 | 2017-02-22 | 仪征海天铝业有限公司 | Distributary combined hot-extrusion die |
| CN110038914A (en) * | 2019-05-30 | 2019-07-23 | 东莞市闻誉实业有限公司 | Round tube hot-extrusion mold and tube and pipe of aluminium alloy |
-
2013
- 2013-02-28 CN CN 201320091611 patent/CN203209463U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424186A (en) * | 2016-07-20 | 2017-02-22 | 仪征海天铝业有限公司 | Distributary combined hot-extrusion die |
| CN110038914A (en) * | 2019-05-30 | 2019-07-23 | 东莞市闻誉实业有限公司 | Round tube hot-extrusion mold and tube and pipe of aluminium alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20190228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |