CN107649660A - A kind of evacuated die-casting process double-circuit system - Google Patents
A kind of evacuated die-casting process double-circuit system Download PDFInfo
- Publication number
- CN107649660A CN107649660A CN201710779563.9A CN201710779563A CN107649660A CN 107649660 A CN107649660 A CN 107649660A CN 201710779563 A CN201710779563 A CN 201710779563A CN 107649660 A CN107649660 A CN 107649660A
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- China
- Prior art keywords
- pressure chamber
- vacuometer
- pipeline
- die cavity
- vacuum
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/14—Machines with evacuated die cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of evacuated die-casting process double-circuit system, including pressure chamber cast pipeline, pressure chamber vacuum loop, die cavity vacuum loop, vavuum pump, the system extracts pressure chamber cast pipeline and the air in die cavity using evacuated die-casting process double loop, the speed vacuumized can be improved, so as to obtain stable working condition, the quality of die casting is significantly improved.
Description
Technical field
The present invention relates to evacuated die-casting process field, specifically a kind of evacuated die-casting process double-circuit system.
Background technology
At present, die-casting technique is widely used in the fields such as automobile, 3C, has short molding cycle, and production efficiency is high, environment friend
The advantages that good.The high speed of compression casting fills type, and frequently resulting in the gas in pressure chamber or die cavity can not exclude completely, these gases volume
Enter molten metal, be finally often present in the form of stomata in casting, casting is lost the possibility of heat treatment and welding.
The content of the invention
It is an object of the invention to provide a kind of evacuated die-casting process double-circuit system, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：
A kind of evacuated die-casting process double-circuit system, including pressure chamber cast pipeline, pressure chamber vacuum loop, die cavity vacuum loop, vavuum pump,
The pressure chamber cast pipeline includes push rod, sprue gate, cast pipeline, and the push rod is built in cast pipeline, and push rod can pour
Slid back and forth in note pipeline, and both contact surface sealings, the sprue gate is arranged on cast pipe end；
The pressure chamber vacuum loop with pour into a mould pipeline front end at be connected, and seal, pressure chamber vacuum loop including vacuometer one,
Pneumatic valve one, pressure chamber return, vacuometer two, pressure chamber vacuum tank, Pneumatic valve two, the vacuometer one pour for detection
The vacuum in pipeline is noted, vacuometer one is arranged on pressure chamber vacuum loop with pouring into a mould the pressure chamber loop pipe of pipeline junction upper end
On road, vacuometer one connects Pneumatic valve one, connects pressure chamber vacuum tank by pressure chamber return, is set on the pressure chamber vacuum tank
Vacuometer two is equipped with, the vacuometer two is used to detect the vacuum in pressure chamber vacuum tank, and pressure chamber vacuum tank passes through gas control
Valve two connects vavuum pump；
The die cavity vacuum loop include quiet mould, dynamic model, cut-off pipeline, vacuometer three, die cavity return, Pneumatic valve three,
Vacuometer four, die cavity vacuum tank, Pneumatic valve four, the quiet mould are connected with dynamic model fitted seal, are internally formed die cavity, die cavity goes out
Mouthful at be provided with cut-off pipeline, it is described cut-off pipeline half be sealed between quiet mould and dynamic model, cut-off pipeline pass through die cavity loop
Pipeline connects Pneumatic valve three and is provided with vacuometer three therebetween, the vacuometer three is used to detect in die cavity very
Reciprocal of duty cycle, Pneumatic valve three connect die cavity vacuum tank, and vacuometer is provided with the die cavity vacuum tank, and the vacuometer is used to examine
The vacuum surveyed in die cavity vacuum tank, die cavity vacuum tank connect vavuum pump by Pneumatic valve four, and pressure chamber is poured into a mould built in pipeline front end
In quiet mould.
As the further scheme of the present invention：The push rod is provided with the injection punch head with sealing copper ring.
As the further scheme of the present invention：Injection punch head on the push rod moves ahead when sealing pouring slot, pressure chamber vacuum
Loop start, the injection punch head on push rod will seal the moment of bleeding point, and pressure chamber vacuum loop is closed.
As the further scheme of the present invention：The vacuometer one, vacuometer two, vacuometer three, vacuometer
Four use vacuum sensors are preferably high temperature modification titanium/silicon high temperature modification pressure sensor.
As the further scheme of the present invention：Absolute pressure in the pressure chamber vacuum loop between 20KPa-30KPa,
Preferably 25KPa.
As the further scheme of the present invention：Absolute pressure in the die cavity vacuum loop between 10KPa-15KPa,
Preferably 12KPa.
Compared with prior art, the beneficial effects of the invention are as follows：The system extracts pressure chamber using evacuated die-casting process double loop and poured
Pipeline and the air in die cavity are noted, the speed vacuumized can be improved, so as to obtain stable working condition, significantly improves die casting
The quality of part.
Brief description of the drawings
Fig. 1 is a kind of evacuated die-casting process double-circuit system schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, a kind of evacuated die-casting process double-circuit system, including pressure chamber cast pipeline 100, pressure chamber vacuum loop 200,
Die cavity vacuum loop 300, vavuum pump 400, the pressure chamber cast pipeline 100 include push rod 110, sprue gate 120, cast pipeline
130, the push rod 110 is built in cast pipeline 130, and push rod 110 can slide back and forth in pipeline 130 is poured into a mould, and both connect
Contacting surface seals, and the sprue gate 120 is arranged on cast pipeline 130 end, for pouring metal melt；
The pressure chamber vacuum loop 200 is connected at the front end with pouring into a mould pipeline 130, and is sealed, and pressure chamber vacuum loop 200 includes true
Porosimter 1, Pneumatic valve 1, pressure chamber return 230, vacuometer 2 240, pressure chamber vacuum tank 250, Pneumatic valve two
260, the vacuometer 1 is used to detect the vacuum in cast pipeline 130, and it is true that vacuometer 1 is arranged on pressure chamber
On pressure chamber return 230 of the backlash road 200 with pouring into a mould the junction upper end of pipeline 130, vacuometer 1 connects Pneumatic valve one
220, pressure chamber vacuum tank 250 is connected by pressure chamber return 230, vacuometer two is provided with the pressure chamber vacuum tank 250
240, the vacuometer 2 240 is used to detect the vacuum in pressure chamber vacuum tank 250, and pressure chamber vacuum tank 250 passes through Pneumatic valve
2 260 connection vavuum pumps 400；
The die cavity vacuum loop 300 includes quiet mould 310, dynamic model 320, cut-off pipeline 330, vacuometer 3 340, die cavity loop
Pipeline 350, Pneumatic valve 3 360, vacuometer 4 370, die cavity vacuum tank 380, Pneumatic valve 4 390, the quiet mould 310 and dynamic model
320 fitted seals connect, and are internally formed die cavity, and die cavity exit is provided with cut-off pipeline 330, the cut-off half of pipeline 330
Be sealed between quiet mould 310 and dynamic model 320, cut-off pipeline 330 by die cavity return 350 connect Pneumatic valve 3 360 and
Vacuometer 3 340 is provided between the two, the vacuometer 3 340 is used to detect vacuum in die cavity, Pneumatic valve 3 360
Die cavity vacuum tank 380 is connected, vacuometer 370 is provided with the die cavity vacuum tank 380, the vacuometer 370 is used to examine
The vacuum surveyed in die cavity vacuum tank 380, die cavity vacuum tank 380 connect vavuum pump 400, pressure chamber cast by Pneumatic valve 4 390
The front end of pipeline 100 is built in quiet mould 310.
The push rod 110 is provided with the injection punch head with sealing copper ring.
Injection punch head on the push rod 110 moves ahead when sealing pouring slot, and pressure chamber vacuum loop 200 starts, in push rod 110
On injection punch head will seal moment of bleeding point, pressure chamber vacuum loop 200 is closed.
The vacuometer 1, vacuometer 2 240, vacuometer 3 340, vacuometer 4 370 use vacuum
Sensor is preferably high temperature modification titanium/silicon high temperature modification pressure sensor.
Absolute pressure in the pressure chamber vacuum loop 200 is between 20KPa-30KPa, preferably 25KPa.
Absolute pressure in the die cavity vacuum loop 300 is between 10KPa-15KPa, preferably 12KPa.
The operation principle of the present invention：The bleeding point of pressure chamber vacuum loop 200 is arranged on pressure chamber cast pipeline 100 in the system
Front end, the air being mainly used in pressure chamber cast pipeline 100 extracts out, and when the injection punch head forward seals pouring slot
Start, the moment that bleeding point will be sealed in injection punch head closes；Die cavity vacuum loop 300 in system, is mainly used in die cavity
Interior air is extracted out, and will seal the moment startup of bleeding point in injection punch head, and blanking tube is reached in molten metal filling die cavity
Closed behind road 330.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. a kind of evacuated die-casting process double-circuit system, it is characterised in that pour into a mould pipeline including pressure chamber（100）, pressure chamber vacuum loop
（200）, die cavity vacuum loop（300）, vavuum pump（400）, the pressure chamber cast pipeline（100）Including push rod（110）, sprue gate
（120）, cast pipeline（130）, the push rod（110）It is built in cast pipeline（130）In, push rod（110）Can be in cast pipeline
（130）In slide back and forth, and both contact surfaces sealing, the sprue gate（120）It is arranged on cast pipeline（130）End；
The pressure chamber vacuum loop（200）With pouring into a mould pipeline（130）Front end at connect, and seal, pressure chamber vacuum loop（200）
Including vacuometer one（210）, Pneumatic valve one（220）, pressure chamber return（230）, vacuometer two（240）, pressure chamber vacuum
Tank（250）, Pneumatic valve two（260）, the vacuometer one（210）Pipeline is poured into a mould for detecting（130）In vacuum, vacuum
Degree meter one（210）It is arranged on pressure chamber vacuum loop（200）With pouring into a mould pipeline（130）The pressure chamber return of junction upper end
（230）On, vacuometer one（210）Connect Pneumatic valve one（220）, pass through pressure chamber return（230）Connect pressure chamber vacuum tank
（250）, the pressure chamber vacuum tank（250）On be provided with vacuometer two（240）, the vacuometer two（240）For detecting
Pressure chamber vacuum tank（250）Interior vacuum, pressure chamber vacuum tank（250）Pass through Pneumatic valve two（260）Connect vavuum pump（400）；
The die cavity vacuum loop（300）Including quiet mould（310）, dynamic model（320）, cut-off pipeline（330）, vacuometer three
（340）, die cavity return（350）, Pneumatic valve three（360）, vacuometer four（370）, die cavity vacuum tank（380）, Pneumatic valve
Four（390）, the quiet mould（310）With dynamic model（320）Fitted seal is connected, and is internally formed die cavity, and die cavity exit, which is provided with, to be cut
Only pipeline（330）, the cut-off pipeline（330）Half is sealed in quiet mould（310）With dynamic model（320）Between, end pipeline（330）
Pass through die cavity return（350）Connect Pneumatic valve three（360）And vacuometer three is provided with therebetween（340）, it is described
Vacuometer three（340）For detecting vacuum in die cavity, Pneumatic valve three（360）Connect die cavity vacuum tank（380）, the die cavity
Vacuum tank（380）On be provided with vacuometer（370）, the vacuometer（370）For detecting die cavity vacuum tank（380）Interior
Vacuum, die cavity vacuum tank（380）Pass through Pneumatic valve four（390）Connect vavuum pump（400）, pressure chamber cast pipeline（100）Front end
It is built in quiet mould（310）In.
A kind of 2. evacuated die-casting process double-circuit system according to claim 1, it is characterised in that the push rod（110）Set
There is the injection punch head with sealing copper ring.
A kind of 3. evacuated die-casting process double-circuit system according to claim 1 or 2, it is characterised in that the push rod（110）On
Injection punch head move ahead when sealing pouring slot, pressure chamber vacuum loop（200）Start, in push rod（110）On injection punch head will
Seal the moment of bleeding point, pressure chamber vacuum loop（200）Close.
A kind of 4. evacuated die-casting process double-circuit system according to claim 1, it is characterised in that the vacuometer one
（210）, vacuometer two（240）, vacuometer three（340）, vacuometer four（370）Using vacuum sensor, it is preferably
High temperature modification titanium/silicon high temperature modification pressure sensor.
A kind of 5. evacuated die-casting process double-circuit system according to claim 1, it is characterised in that the pressure chamber vacuum loop
（200）In absolute pressure between 20KPa-30KPa, preferably 25KPa.
A kind of 6. evacuated die-casting process double-circuit system according to claim 1, it is characterised in that the die cavity vacuum loop
（300）In absolute pressure between 10KPa-15KPa, preferably 12KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779563.9A CN107649660A (en) | 2017-09-01 | 2017-09-01 | A kind of evacuated die-casting process double-circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779563.9A CN107649660A (en) | 2017-09-01 | 2017-09-01 | A kind of evacuated die-casting process double-circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107649660A true CN107649660A (en) | 2018-02-02 |
Family
ID=61129196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710779563.9A Pending CN107649660A (en) | 2017-09-01 | 2017-09-01 | A kind of evacuated die-casting process double-circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107649660A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004017142A (en) * | 2002-06-20 | 2004-01-22 | Denso Corp | Die casting machine and die casting method |
| JP2013035019A (en) * | 2011-08-08 | 2013-02-21 | Daitoku:Kk | Decompression and oxygen filling-up device for pf die-casting apparatus |
| WO2015169777A2 (en) * | 2014-05-06 | 2015-11-12 | Bühler AG | Method for operating a vacuum die-casting machine |
| CN106975738A (en) * | 2017-04-06 | 2017-07-25 | 清华大学 | Vacuum die-cast equipment and high vacuum die casting method |
-
2017
- 2017-09-01 CN CN201710779563.9A patent/CN107649660A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004017142A (en) * | 2002-06-20 | 2004-01-22 | Denso Corp | Die casting machine and die casting method |
| JP2013035019A (en) * | 2011-08-08 | 2013-02-21 | Daitoku:Kk | Decompression and oxygen filling-up device for pf die-casting apparatus |
| WO2015169777A2 (en) * | 2014-05-06 | 2015-11-12 | Bühler AG | Method for operating a vacuum die-casting machine |
| CN106975738A (en) * | 2017-04-06 | 2017-07-25 | 清华大学 | Vacuum die-cast equipment and high vacuum die casting method |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180202 |
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| WD01 | Invention patent application deemed withdrawn after publication |