CN101954470A - Vacuum die-casting system of die-casting machine - Google Patents
Vacuum die-casting system of die-casting machine Download PDFInfo
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- CN101954470A CN101954470A CN2010105257428A CN201010525742A CN101954470A CN 101954470 A CN101954470 A CN 101954470A CN 2010105257428 A CN2010105257428 A CN 2010105257428A CN 201010525742 A CN201010525742 A CN 201010525742A CN 101954470 A CN101954470 A CN 101954470A
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Abstract
The invention discloses a vacuum die-casting system of a die-casting machine, which comprises the die-casting machine, a fixed-mold wallboard of a die casting mold, and a vacuum program control device of a die-casting system, wherein the vacuum die-casting system of the die-casting machine is arranged on the fixed-mold wallboard, the template of the fixed-mold wallboard of the die casting mold is provided with a channel, the outlet of the channel is connected with a vacuumizing device consisting of a vacuum pump, a negative pressure tank, a filter and a vacuum shut-off valve of the die casting mold by pipes; a channel leading to the center of the template of the die casting mold is connected with a casing pipe, the inner end of the casing pipe is communicated with a cavity of the template of the die casting mold, and a valve rod connected with a piston rod of an oil cylinder on the fixed-mold wallboard is arranged in a hole arranged at the outer end of the casing pipe. When carrying out die assembling on the die casting mold of the die-casting machine, by aid of the negative pressure produced by the vacuum pump of the vacuum die-casting system, the invention instantaneously extracts gases in the cavity and the pipe of the template of the mold, and closes the channel timely when the cavity is filled with molten metals, thereby preventing the molten metals from entering the vacuum pipelines so as to carry out die-casting molding on the molten metals in a vacuum.
Description
Technical field
The invention belongs to the metal forming technical field.Relate to a kind of evacuated die-casting process technology, be specifically related to a kind of die casting machine evacuated die-casting process system.
Background technology
Casting forming is that liquid metal is under the high pressure effect, with high speed filling mold cavity, and cooled and solidified and obtain a kind of forming technology of foundry goods under pressure.Because molten metal is with high velocity jet state filling die cavity, most of gas in the die cavity has little time to discharge, and be rolled in the molten metal inevitably, and retain in the die casting with form of pinholes, cause forming in the die casting comparatively serious gas hole defect, the inherent quality of product exists certain problem, so common die casting can not be heat-treated, can not weld, therefore make the mechanical property of die casting itself can not get further raising, the expansion and the expansion of die casting application are restricted.
In order to improve the inherent quality of product in the casting forming technology, most of gas when avoiding die casting in the die cavity is rolled in the molten metal and forms pore and retain in the die casting, realizes that evacuated die-casting process just becomes newer research topic in the metal forming technical field.
And evacuated die-casting process at first is the passage of an eliminating is provided will for gas in the casting die die cavity, extracts the gas in the die cavity, guarantees that gas non-involvement in the die cavity is in molten metal; The 2nd, after extracting gas, in time close this passage, stop molten metal to enter vacuum pipe, implement die casting then.But in evacuated die-casting process, particularly one of the bottleneck of (vacuum is more than 90KPa) and difficult point are the layout and the design of the vaccum stop valve of vacuum system in the high vacuum die-casting technique.
Summary of the invention
The present invention is in order to enlarge the use field of die casting, in conjunction with the certain methods of Ultra-Low Speed die casting, semisolid die casting, pore-free die casting, evacuated die-casting process, provides a kind of evacuated die-casting process system.That passes through is provided with the vaccum stop valve of installation in the evacuated die-casting process system, in press casting procedure, open effectively, take the gas in the die cavity away, and after die cavity realization vacuum, close in good time, make molten metal under the state of vacuum, fill type, solved the comparatively serious product inherent quality problem of existence in the existing casting forming technology.
The technical solution adopted in the present invention is, a kind of die casting machine evacuated die-casting process system, comprise die casting machine, and the vacuum presetting apparatus of the cover half wallboard of die casting and die-casting system, described die casting machine evacuated die-casting process system is arranged on the cover half wallboard, the template of described cover half wallboard die casting is provided with a passage, and the outlet of passage connects the die casting vacuum extractor of being made up of vavuum pump, negative-pressure cup, filter, vaccum stop valve successively by pipeline; Connect a sleeve pipe in the passage that leads to die casting template center, the inner end of sleeve pipe communicates with the die cavity of die casting template, is equipped with in the hole of sleeve pipe outer end the valve rod that piston rod connected that oil cylinder is installed is set on the cover half wallboard.
Die casting machine evacuated die-casting process of the present invention system, its feature also be,
Described die casting machine evacuated die-casting process system also is provided with the cast gate inductive switch on the die casting machine injection guide post.
Described die casting machine evacuated die-casting process system is provided with stage casing inductive switch, back segment inductive switch.
The vacuum presetting apparatus of described die-casting system comprises the collector that is connected by computer control, and the collector transmitter that is connected with vacuum pipe of setting and negative-pressure cup respectively.
Die casting machine evacuated die-casting process of the present invention system is at particularly the bottleneck technology and the design difficulty of high vacuum die-casting technique (vacuum is more than 90KPa) in the evacuated die-casting process, adopt the project organization of evacuated die-casting process system and vaccum stop valve, the passage of an eliminating is provided to the gas in the die casting die cavity of die casting machine die casting; By the vaccum stop valve that is provided with in the evacuated die-casting process system, in press casting procedure, open earlier effectively, take the gas in the die cavity away, realize closing bleed-off passage after the vacuum at die cavity subsequently in good time, stop molten metal to enter vacuum pipe, make molten metal under the state of vacuum, fill type, improve the inherent quality of product in the casting forming technology, most of gas when avoiding die casting in the die cavity is rolled in the molten metal and forms pore and retain in the die casting, reduce foundry goods internal porosity, defective such as loose, realize evacuated die-casting process, improve the mechanical property of foundry goods.
Evacuated die-casting process of the present invention is the same with common pressure casting method, and is easy to operate, production efficiency is high, does not increase the extra cost of die casting.
Description of drawings
Fig. 1 is a die casting machine evacuated die-casting process system architecture schematic diagram of the present invention;
Fig. 2 is a die casting machine evacuated die-casting process system vacuum presetting apparatus structural representation of the present invention.
Among the figure, 1. cover half wallboard, 2. template, 3. vavuum pump, 4. negative-pressure cup, 5. filter, 6. vaccum stop valve, 7. sleeve pipe, 8. oil cylinder, 9. valve rod, 10. cast gate inductive switch, 11. stage casing inductive switches, 12. the back segment inductive switch, 13. computers, 14. collectors, 15. transmitters, 16. injection plunger, 17. cast gates, 18. injection guide posts, 19 pipelines, 20. moving platen, 21. die castings, 22. magnetic valves, 23. compressed air.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
A kind of die casting machine evacuated die-casting process system, comprise die casting machine, and the vacuum presetting apparatus of the cover half wallboard 1 of die casting and die-casting system, as shown in Figure 1, described die casting machine evacuated die-casting process system is arranged on the cover half wallboard 1, the template 2 of described cover half wallboard 1 die casting is provided with a passage, and the outlet of passage connects the die casting vacuum extractor of being made up of vavuum pump 3, negative-pressure cup 4, filter 5, vaccum stop valve 6 successively by pipeline; Connect a sleeve pipe 7 in the passage that leads to die casting template 2 centers, the inner end of sleeve pipe 7 communicates with the die cavity of die casting template 2, is equipped with in the hole of sleeve pipe 7 outer ends the valve rod that piston rod connected 9 that oil cylinder 8 is installed is set on the cover half wallboard 1; Described die casting machine evacuated die-casting process system also is provided with cast gate inductive switch 10 on the die casting machine injection guide post, described die casting machine evacuated die-casting process system is provided with stage casing inductive switch 11, back segment inductive switch 12.
The vacuum presetting apparatus of the described die-casting system of die casting machine evacuated die-casting process system of the present invention as shown in Figure 2, comprises the collector 14 by computer 13 control connections, and collector 14 is provided with the transmitter 15 that is connected with vacuum pipe with negative-pressure cup 4 respectively.
Die casting machine evacuated die-casting process of the present invention system mould template 2 die cavities are provided with an exhaust passage, behind die casting machine die casting matched moulds, carry out pipeline forvacuum, at this moment, when injection plunger 16 arrives the position of sealing cast gate 17 under the driving of injection oil cylinder, cast gate inductive switch 10 inductions that are provided with on the die casting machine injection guide post 18, the valve rod 9 of oil cylinder 8 retreats, open the exhaust passage on template 2 die cavities, die casting machine evacuated die-casting process system is by vavuum pump 3, negative-pressure cup 4, filter 5, the die casting vacuum extractor that vaccum stop valve 6 is formed, computer 13 control operations according to the vacuum presetting apparatus, the collector 14 of machine 13 control connections as calculated, and collector 14 is provided with transmitter 15 output orders that are connected with vacuum pipe with negative-pressure cup 4 respectively, vaccum stop valve 6 on the vacuum pipe is opened, the gas of mould template 2 die cavities and pipeline is via vaccum stop valve 6, filter 5, the negative pressure that is produced by vavuum pump 3 operations is pumped into negative-pressure cup 4, mould template 2 die cavities form vacuum, when injection plunger 16 when the driving of injection oil cylinder is issued to the fast shot transfer point, the stage casing inductive switch 11 induction actions that are provided with on the oil cylinder 8, the valve rod 9 of oil cylinder 8 advances, insert sleeve pipe 7 fully, passage on the template 2 of sealing die casting, back segment inductive switch 12 induction actions then, close the vaccum stop valve 6 on the vacuum pipe, after the complete closed pipeline prevented that molten metal from sucking vacuum pipe formation obstruction, injection plunger 16 carried out fast shot under the driving of injection oil cylinder.The pressurize certain hour, foundry goods evacuated die-casting process finishes, and die casting machine moving platen 20 retreats die sinking, takes out die casting 21, opens magnetic valve 22, with compressed air 23 cleaning moulds 2 die cavities, carries out next round evacuated die-casting process circulation.
Die casting machine evacuated die-casting process of the present invention system, the negative pressure of bleeding and producing by evacuated die-casting process system vacuum pump 3, when die casting machine die casting matched moulds, after vaccum stop valve 6 is opened, valve rod 9 in the sleeve pipe 7 outer stomidiums retreats, the instantaneous gas of taking mould 2 template die cavities and pipeline away, and when molten metal fills type punctual closing passage, prevent that molten metal from entering vacuum pipe, make molten metal die casting under the state of vacuum fill type.Improved the inherent quality of casting forming product thus, most of gas when avoiding die casting in the die cavity is rolled in the molten metal and forms pore and retain in the foundry goods, reduce foundry goods internal porosity, defective such as loose, realized evacuated die-casting process, improved the mechanical property of foundry goods.
Above-mentioned embodiment is an an example of the present invention, is not to be used for limiting enforcement of the present invention and interest field, and all equivalences of making according to the described content of the present patent application scope of patent protection change and modify, and all should be included in the present patent application claim.
Claims (4)
1. die casting machine evacuated die-casting process system, comprise die casting machine, and the cover half wallboard (1) of die casting and the vacuum presetting apparatus of die-casting system, it is characterized in that, described die casting machine evacuated die-casting process system is arranged on the cover half wallboard (1), the template (2) of described cover half wallboard (1) die casting is provided with a passage, and the outlet of passage connects the die casting vacuum extractor of being made up of vavuum pump (3), negative-pressure cup (4), filter (5), vaccum stop valve (6) successively by pipeline; Connect a sleeve pipe (7) in the passage that leads to die casting template (2) center, the inner end of sleeve pipe (7) communicates with the die cavity of die casting template (2), is equipped with in the hole of sleeve pipe (7) outer end the valve rod that piston rod connected (9) that oil cylinder (8) is installed is set on the cover half wallboard (1).
2. die casting machine evacuated die-casting process according to claim 1 system is characterized in that, described die casting machine evacuated die-casting process system also is provided with cast gate inductive switch (10) on the die casting machine injection guide post.
3. die casting machine evacuated die-casting process according to claim 1 system is characterized in that, described die casting machine evacuated die-casting process system is provided with stage casing inductive switch (11), back segment inductive switch (12).
4. die casting machine evacuated die-casting process according to claim 1 system, it is characterized in that, the vacuum presetting apparatus of described die-casting system comprises the collector (14) by computer (13) control connection, and collector (14) is provided with the transmitter (15) that is connected with vacuum pipe with negative-pressure cup (4) respectively.
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Cited By (14)
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CN103212687A (en) * | 2012-01-19 | 2013-07-24 | 香港生产力促进局 | Casting device and casting method for wheel disc workpieces |
CN103817308A (en) * | 2014-02-21 | 2014-05-28 | 广东鸿图科技股份有限公司 | Punch for high-vacuum die casting and lubrication device for punch |
CN104023876A (en) * | 2011-09-30 | 2014-09-03 | 科卢斯博知识产权有限公司 | Injection molding of amorphous alloy using an injection molding system |
CN104174830A (en) * | 2013-05-27 | 2014-12-03 | 舒乐绞扭机有限责任公司 | Casting device with an annular duct and a casting method |
US8919422B2 (en) | 2011-02-18 | 2014-12-30 | United Technologies Corporation | Die casting system and cell |
CN104772446A (en) * | 2015-04-27 | 2015-07-15 | 雄邦压铸(南通)有限公司 | Mold vacuum pumping device |
CN104841906A (en) * | 2015-06-05 | 2015-08-19 | 芜湖舜富压铸制造有限公司 | Vacuum die casting system and vacuumizing method thereof |
CN104907523A (en) * | 2015-04-22 | 2015-09-16 | 美诺精密压铸(上海)有限公司 | Exhaust core structure and vacuum die-casting system |
CN106077567A (en) * | 2016-08-10 | 2016-11-09 | 江苏金润汽车传动科技有限公司 | Hydraulic valve plate casting evacuation oxygenation die device |
CN107020361A (en) * | 2017-04-17 | 2017-08-08 | 上海万泰汽车零部件有限公司 | Part of automobile engine microdiecast mould |
CN111097888A (en) * | 2020-02-24 | 2020-05-05 | 江苏睿甲金属科技股份有限公司 | Double-pumping type vacuum die-casting system |
CN111575547A (en) * | 2020-06-13 | 2020-08-25 | 南通华众液压机械有限公司 | Production process of cable clamp |
US11179772B2 (en) | 2019-06-20 | 2021-11-23 | Midland Technologies, Inc. | Vacuum sensor system for high pressure die casting |
CN113814372A (en) * | 2021-10-15 | 2021-12-21 | 常州艾可特机电科技有限公司 | Vacuum die-casting control method, system and equipment |
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CN1798622A (en) * | 2003-06-03 | 2006-07-05 | 高东瑾 | Die casting machine and casting method by thereof machine |
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Cited By (20)
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US9878368B2 (en) | 2011-02-18 | 2018-01-30 | United Technologies Corporation | Die casting system and cell |
US8919422B2 (en) | 2011-02-18 | 2014-12-30 | United Technologies Corporation | Die casting system and cell |
US9289823B2 (en) | 2011-02-18 | 2016-03-22 | United Technologies Corporation | Die casting system and cell |
CN104023876A (en) * | 2011-09-30 | 2014-09-03 | 科卢斯博知识产权有限公司 | Injection molding of amorphous alloy using an injection molding system |
CN103212687A (en) * | 2012-01-19 | 2013-07-24 | 香港生产力促进局 | Casting device and casting method for wheel disc workpieces |
CN104174830A (en) * | 2013-05-27 | 2014-12-03 | 舒乐绞扭机有限责任公司 | Casting device with an annular duct and a casting method |
CN104174830B (en) * | 2013-05-27 | 2019-03-26 | 舒乐绞扭机有限责任公司 | Pouring device and casting method with circulating line |
CN103817308A (en) * | 2014-02-21 | 2014-05-28 | 广东鸿图科技股份有限公司 | Punch for high-vacuum die casting and lubrication device for punch |
CN103817308B (en) * | 2014-02-21 | 2016-01-20 | 广东鸿图科技股份有限公司 | A kind of high vacuum die casting drift and the lubricating arrangement for this drift |
CN104907523A (en) * | 2015-04-22 | 2015-09-16 | 美诺精密压铸(上海)有限公司 | Exhaust core structure and vacuum die-casting system |
CN104772446A (en) * | 2015-04-27 | 2015-07-15 | 雄邦压铸(南通)有限公司 | Mold vacuum pumping device |
CN104841906A (en) * | 2015-06-05 | 2015-08-19 | 芜湖舜富压铸制造有限公司 | Vacuum die casting system and vacuumizing method thereof |
CN106077567A (en) * | 2016-08-10 | 2016-11-09 | 江苏金润汽车传动科技有限公司 | Hydraulic valve plate casting evacuation oxygenation die device |
CN107020361B (en) * | 2017-04-17 | 2018-11-16 | 上海永茂泰汽车零部件有限公司 | Part of automobile engine microdiecast mold |
CN107020361A (en) * | 2017-04-17 | 2017-08-08 | 上海万泰汽车零部件有限公司 | Part of automobile engine microdiecast mould |
US11179772B2 (en) | 2019-06-20 | 2021-11-23 | Midland Technologies, Inc. | Vacuum sensor system for high pressure die casting |
US11529677B2 (en) | 2019-06-20 | 2022-12-20 | Midland Technologies, Inc. | Vacuum sensor system for high pressure die casting |
CN111097888A (en) * | 2020-02-24 | 2020-05-05 | 江苏睿甲金属科技股份有限公司 | Double-pumping type vacuum die-casting system |
CN111575547A (en) * | 2020-06-13 | 2020-08-25 | 南通华众液压机械有限公司 | Production process of cable clamp |
CN113814372A (en) * | 2021-10-15 | 2021-12-21 | 常州艾可特机电科技有限公司 | Vacuum die-casting control method, system and equipment |
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