CN103978180A - Air entrainment prevention aluminum alloy cold chamber die casting machine - Google Patents
Air entrainment prevention aluminum alloy cold chamber die casting machine Download PDFInfo
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- CN103978180A CN103978180A CN201410243562.9A CN201410243562A CN103978180A CN 103978180 A CN103978180 A CN 103978180A CN 201410243562 A CN201410243562 A CN 201410243562A CN 103978180 A CN103978180 A CN 103978180A
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Abstract
The invention provides an air entrainment prevention aluminum alloy cold chamber die casting machine. A machine body framework is fixed to a rocker to form a machine body, the machine body is obliquely connected with a machine base through a tail supporting rod and a front supporting rod to form a whole, an injection device is further provided with a piston provided with a push rod and arranged in a piston cylinder, the piston cylinder is fixed to the periphery of a feed inlet of a material pipe, and the piston provided with the push rod is matched with the feed inlet of the material pipe to form an air entrainment prevention and leakage prevention device. According to the die casting machine, an inclined and supportable machine base structure is adopted, and the material pipe is inclined by the same angle as the machine body so that the contact area of aluminum alloy liquid flow and air can be greatly reduced to 25%. After materials enter the material pipe, the piston in the piston cylinder is pressurized through hydraulic pressure of an oil cylinder, and the piston moves downwards to plug the feed inlet of the material pipe, namely, the aluminum alloy liquid flow is prevented from leaking and the material pipe is changed from being opened to being sealed. The aluminum alloy liquid flow is injected under a sealed condition, and accordingly air entrainment is lowered by 90-95%. Die casting products are high in quality and density, low in porosity and high in tensile strength, the rejection rate is reduced, the yield is improved, work efficiency is improved, and cost is lowered.
Description
Technical field
The present invention relates to a kind of mechanical die casting equipment, particularly a kind of suitable anti-roll gas aluminium alloy cold-chamber die casting machine that aluminum alloy materials is carried out to die casting.
Background technology
At present, Die Casting Industry has been obtained mirable development, has developed into an emerging industry, and especially aluminum alloy die-casting technological is used widely in industries such as automobile, motorcycle, household electrical appliance.
But existing die casting machine is that aluminum alloy melt stream is poured into from porch, injection punch head by shot sleeve control injection rod end flows injection in compression mod by aluminum alloy melt rapidly, the final die casting that forms, there is more problem in this traditional die casting machine, especially aluminum alloy die casting is of low quality, scrappage is high and yield rate is low, and die casting often contains more pore in it, and this is that the common phenomenon of press casting procedure is also the problem of very puzzling.
Patent No. CN200920203171.9 " with the die casting machine of agitating device ", just provides one can eliminate most of pores in aluminum alloy die casting, improves the quality of products and yield rate, and saves the die casting machine of the energy.
Before die casting operation, stirring rod termination is immersed in to liquid aluminium alloy inside and carries out High Rotation Speed, then liquid aluminium alloy is poured in molten cup, drive injection rod fast aluminium alloy injection to be completed to die casting work in compression mod by shot sleeve again, also need the semi-solid aluminium alloy cleaning plate that is attached to stirring rod outer surface after cooling to scrape off and clean out simultaneously, prepare to stir and re-use next time, every die casting one part all needs this process of repetition, therefore time-consuming, effort, inefficiency, operation, use inconvenient.
Summary of the invention
Technical problem to be solved by this invention is: a kind of anti-roll gas aluminium alloy cold-chamber die casting machine is provided, can eliminate the most of pore in die casting, improve the quality of products and yield rate, also save the energy, and easy to use, the die casting of the various different sizes of suitable compacting, shape.
The present invention addresses the above problem adopted technical scheme: anti-roll gas aluminium alloy cold-chamber die casting machine, comprise: rear pattern plate, middle template, front template are connected into overall fuselage ring by pull bar, support, be fixed on that material pipe on front template, fixed die coordinates with the injection rod of stopper head and injection rod coordinates the injection device forming with shot sleeve;
Described fuselage ring is fixed on and on rocking arm, forms fuselage, described fuselage tilts to connect into entirety by tail, front strut and support, in described injection device, also comprise by being arranged in piston cylinder with the piston of push rod, it is upper that piston cylinder is fixed on material pipe, and the described piston with push rod coordinates the anti-roll gas device for preventing leakage forming with the charging aperture on described material pipe.
Compared with prior art, the invention has the advantages that: the airframe structure that this die casting machine has adopted tilting to support, be about to material and manage the same angle that also simultaneously tilts, thereby make to expect that in pipe, aluminum alloy melt stream greatly reduces with the contact area of air, can reach 25%.Because having reduced the existence of air, after the charging of material pipe, again by oil cylinder hydraulic effect to the piston pressurization in piston cylinder, it is moved down until the charging aperture of clogging material pipe, can prevent the leakage of aluminum alloy melt stream, make again to expect pipe from open change over closed, make aluminum alloy melt stream complete injection under air-proof condition, another greatly reduces the air existing in material pipe, and stopper head is relatively stable in the time advancing aluminum alloy melt stream, has avoided wavy the advancing of aluminium liquid to form the phenomenon of volume gas.This die casting machine repeatedly reduces the air being stored in material pipe, make to roll up gas and reduce by 90～95%, thereby the die casting product that die casting machine suppresses thus, be all high-quality, high density, low porosity, product that tensile strength is high, both greatly reduced percent defective and increased qualification rate, and also increased work efficiency, reduce costs.
Brief description of the drawings
Fig. 1, structural representation of the present invention (use state diagram).
Fig. 2, structural representation of the present invention (not duty).
Fig. 3, anti-roll gas leakage preventing device structural representation (stereogram).
The top view of Fig. 4, Fig. 1.
The local amplification view (injection state) of Fig. 5, Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
Material pipe 13 is fixed on front template 12 and fixed die 11, and mobile mould 10 is connected in middle template 9, coordinate with material pipe 13 with the injection rod 15 of stopper head 14, and be prior art.
On support 1 bottom surface both sides are fixing, there is the lower free bearing 2 of through hole, one end of the tail supporting rod 5 that the two side of upper surface one end connects rotatably, can lodge, the other end both sides of upper surface also have the raised flange 1-1 with through hole.
Front strut 4 is oil cylinder, the upper and lower side of oil cylinder respectively with bearing pin 3 be hinged on upper and lower free bearing 2 ', on 2, upper free bearing 2 ' be fixed on rocking arm 6.
Tail supporting rod 5 connects into by one end of two straight-bar 5-1 the one can rotate around the axis with axle 5-2, the other end of two straight-bars is fixed on the upper surface and rocking arm 6 of support 1 with securing member respectively.
Rear pattern plate 8, middle template 9, front template 12 are connected into overall fuselage ring by upper and lower four pull bars 7, shot sleeve 16 is fixed on the front side wall of fuselage ring, on fuselage ring before, during and after the two side of template 12,9,8 be weldingly fixed on respectively on two rocking arms 6 and form fuselage 17.
The flange 1-1 that two rocking arms 6 on fuselage are connected to support by rotating shaft 18 is upper, fuselage can be rotated around pivot shaft 18, and make to support through two tail supporting rods 5, front strut 4 respectively between fuselage 17 and support 1, forms α angle of inclination.
α angle is 10～60 degree, according to the shape of stampings, big or small needs, can regulate the size at α angle, and the larger aluminum alloy melt of α angle stream is less with air contact area, push more stablely, and die venting is more smooth, rolls up gas less.
In one end of the end face fixed support plate 22 of front template 12.
Material pipe 13 limits also connect to favour expects pipe, the drainage tube 13-1 with cast gate and the pushing ram 13-3 coordinating with drainage tube, and the upper surface of material pipe has the charging aperture 13-2 that communicates and coordinate with piston 20 with drainage tube 13-1.Be arranged in piston cylinder 21 with the piston 20 of push rod 19, piston cylinder 21 upper end inwalls have raised spacing ring 21-1, make piston 20 only can between spacing ring, not move up and down and can swing, piston cylinder lower end is screwed on the periphery of material pipe charging aperture 13-2, piston cylinder 21 upper ends, through gripper shoe 22, are connected on the other end of gripper shoe, form anti-roll gas device for preventing leakage, as shown in Figure 3, this installs by the oil cylinder above piston cylinder to piston supply pressure oil (figure does not draw).
When use, use computer control, first rotate and regulate tail, front strut 5,4, the α angle of inclination that fuselage 17 is lifted away between support and support 1 reaches designing requirement, then locks tail supporting rod, front strut, and as shown in Figure 1, α is 30 degree.
First, the drainage tube 13-1 of logical charge tube 13 enters the aluminum alloy melt of the melting charging aperture 13-2 that flows through in feeding pipe 13, then open the oil cylinder of piston cylinder top, pressure oil in oil cylinder promotes push rod 19 moves down piston 20, until sealing and clogging charging aperture 13-2, aluminum alloy melt stream is sealed in the material pipe of sealing, at this moment promotes injection rod 15 by the shot sleeve 16 on fuselage again and drive stopper head 14 to penetrate in material Guan Zhongqian pushing, until enter mould.Piston 20 stops up charging aperture 13-2, make material pipe 13 become closed material pipe from traditional open state-transition, because expecting duct occlusion, can prevent the overflow from charging aperture of aluminum alloy melt stream, make again aluminum alloy melt stream complete injection under the condition of sealing, greatly reduce the air in material pipe and the area contacting with air, thereby reached the object of anti-roll gas anti-leak, so can die casting produce high density, low porosity, high-quality die casting.
The not used time, put down tail, front strut 5,4, fuselage 17 is shelved on support 1, as shown in Figure 2.
Claims (8)
1. an anti-roll gas aluminium alloy cold-chamber die casting machine, comprise: rear pattern plate (8), middle template (9), front template (12) are connected into overall fuselage ring by pull bar (7) support (1), the injection device that is fixed on that material pipe (13) on front template (12), fixed die (11) coordinates with the injection rod (15) of band stopper head (14) and connects and composes with shot sleeve (16); It is characterized in that described fuselage ring is fixed on rocking arm (6) upper formation fuselage (17), described fuselage (17) tilts to connect into entirety by tail supporting rod (5), front strut (4) with support (1), in described injection device, also comprise by the piston with push rod (19) (20) and being arranged in piston cylinder (21), it is upper that piston cylinder (21) is fixed on material pipe (13), and the described piston with push rod (19) (20) coordinates the anti-roll gas device for preventing leakage of formation with the charging aperture (13-2) on described material pipe (13).
2. anti-roll gas aluminium alloy cold-chamber die casting machine according to claim 1, it is characterized in that described material pipe (13) limit also connects favours material pipe and the drainage tube (13-1) with cast gate and the pushing ram (13-3) coordinating with drainage tube, and the upper surface of described material pipe has the charging aperture (13-2) communicating with drainage tube (13-1).
3. anti-roll gas aluminium alloy cold-chamber die casting machine according to claim 1, is characterized in that there is raised spacing ring (21-1) on described piston cylinder (21) inwall, and the lower end of piston cylinder is screwed on the periphery of material pipe charging aperture (13-2).
4. anti-roll gas aluminium alloy cold-chamber die casting machine according to claim 1, it is characterized in that described support (1) bottom surface both sides have the lower free bearing (2) of through hole on fixing, one end of the tail supporting rod (5) that the two side of upper surface one end connects rotatably, can lodge, the other end both sides of upper surface also have the raised flange (1-1) with through hole.
5. anti-roll gas aluminium alloy cold-chamber die casting machine according to claim 1, it is characterized in that described front strut (4) is oil cylinder, the upper and lower end of oil cylinder uses respectively bearing pin (3) to be hinged on upper and lower free bearing (2 '), (2) are upper, and upper free bearing (2 ') is fixed on rocking arm (6).
6. anti-roll gas aluminium alloy cold-chamber die casting machine according to claim 1, it is characterized in that two rocking arms (6) on described fuselage (17) are connected to by pivot shaft (18) on the flange (1-1) of support (1), fuselage (17) around the shaft (18) rotates, between fuselage (17) and support (1), form α angle of inclination respectively by two tail supporting rods (5), front strut (4), tilt angle alpha is 10～60 degree.
7. anti-roll gas aluminium alloy cold-chamber die casting machine according to claim 1, it is characterized in that described tail supporting rod (5) is connected into the one that can rotate around axle (5-2) by the axle for one end (5-2) of two straight-bars (5-1), the other end of two straight-bars is fixed on the upper surface and rocking arm (6) of support (1) with securing member respectively.
8. anti-roll gas aluminium alloy cold-chamber die casting machine according to claim 1, it is characterized in that one end of the end face fixed support plate (22) of described front template (12), the upper end of described piston cylinder (21), through gripper shoe, is connected on the other end of gripper shoe (22).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410243562.9A CN103978180A (en) | 2014-06-04 | 2014-06-04 | Air entrainment prevention aluminum alloy cold chamber die casting machine |
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| CN201410243562.9A CN103978180A (en) | 2014-06-04 | 2014-06-04 | Air entrainment prevention aluminum alloy cold chamber die casting machine |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2624444A1 (en) * | 1976-06-01 | 1977-12-15 | Mahle Gmbh | Pressure die casting machine with inclined injector barrel - so melt can be poured into barrel before die closure |
| CN1256982A (en) * | 1998-11-25 | 2000-06-21 | 里特铝吉伯里有限公司 | Pressure casting method for making alloy cast with thixotropy |
| CN1572391A (en) * | 2003-05-19 | 2005-02-02 | 高田株式会社 | Vertical injection molding machine using three chambers |
| CN201283421Y (en) * | 2008-10-05 | 2009-08-05 | 姚国志 | Liquid forging and pressing device of magnesium and aluminium alloy |
| CN201437151U (en) * | 2009-04-13 | 2010-04-14 | 嘉兴市吉达五金压铸有限公司 | Horizontal die casting machine |
| CN103182498A (en) * | 2012-12-24 | 2013-07-03 | 陈火生 | Die-casting method and die-casting machine adopting same |
| CA2766281A1 (en) * | 2012-01-26 | 2013-07-26 | Peter Y. Inouye | A two sleeve metal filling system for filling of injection sleeve with injection piston in the retracted position for inclined cold chamber die casting machines |
| CN203936348U (en) * | 2014-06-04 | 2014-11-12 | 宁波中桥精密机械有限公司 | Anti-roll gas aluminium alloy cold-chamber die casting machine |
-
2014
- 2014-06-04 CN CN201410243562.9A patent/CN103978180A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2624444A1 (en) * | 1976-06-01 | 1977-12-15 | Mahle Gmbh | Pressure die casting machine with inclined injector barrel - so melt can be poured into barrel before die closure |
| CN1256982A (en) * | 1998-11-25 | 2000-06-21 | 里特铝吉伯里有限公司 | Pressure casting method for making alloy cast with thixotropy |
| CN1572391A (en) * | 2003-05-19 | 2005-02-02 | 高田株式会社 | Vertical injection molding machine using three chambers |
| CN201283421Y (en) * | 2008-10-05 | 2009-08-05 | 姚国志 | Liquid forging and pressing device of magnesium and aluminium alloy |
| CN201437151U (en) * | 2009-04-13 | 2010-04-14 | 嘉兴市吉达五金压铸有限公司 | Horizontal die casting machine |
| CA2766281A1 (en) * | 2012-01-26 | 2013-07-26 | Peter Y. Inouye | A two sleeve metal filling system for filling of injection sleeve with injection piston in the retracted position for inclined cold chamber die casting machines |
| CN103182498A (en) * | 2012-12-24 | 2013-07-03 | 陈火生 | Die-casting method and die-casting machine adopting same |
| CN203936348U (en) * | 2014-06-04 | 2014-11-12 | 宁波中桥精密机械有限公司 | Anti-roll gas aluminium alloy cold-chamber die casting machine |
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Application publication date: 20140813 |