CN105458211A - Die casting device of horizontal type cold chamber vacuum die casting machine and method for utilizing die casting device for die casting - Google Patents
Die casting device of horizontal type cold chamber vacuum die casting machine and method for utilizing die casting device for die casting Download PDFInfo
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- CN105458211A CN105458211A CN201510847758.3A CN201510847758A CN105458211A CN 105458211 A CN105458211 A CN 105458211A CN 201510847758 A CN201510847758 A CN 201510847758A CN 105458211 A CN105458211 A CN 105458211A
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- Prior art keywords
- stop valve
- die casting
- valve
- vacuum
- control device
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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
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
- B22D17/10—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with horizontal press motion
Abstract
The invention discloses a die casting device of a horizontal type cold chamber vacuum die casting machine. The die casting device comprises a press chamber, a die casting die, a vacuum valve, a puncher pin, an ejection rod, a first stop valve, a compressed air storage tank, a second stop valve, a vacuum system, a control device and a displacement sensor. The die casting die comprises a fixed die body and a movable die body, and the fixed die body and the movable die body are matched to form a cavity, an inner sprue, an exhaust channel and a valve cavity. The vacuum valve is arranged at the position, in the fixed die body, of the valve cavity and connected with the first stop valve through a valve connecting pipe. The first stop valve is connected with the compressed air storage tank. A sprue gate is arranged on the press chamber. The control device is used for controlling running of the compressed air storage tank and the vacuum system and opening and closing of the first stop valve and the second stop valve. The die casting device has the advantages of being good in vacuum effect, easy and convenient to arrange and maintain, low in fault rate and long in service life.
Description
Technical field
The invention belongs to field of die casting machines, more specifically, relate to a kind of die casting equipment of horizontal cold room vacuum die casting machine and utilize it to carry out the method for die casting.
Background technology
Evacuated die-casting process technology, after utilizing vacuum source to discharge the gas of mold cavity inside, makes molten metal under this vacuum state, fill a kind of cast moulding method of mold cavity.Evacuated die-casting process inherits the advantage of common pressure casting method, and but can significantly reduce cast-internal gas hole defect, the lifting for casting quality has a significant effect, and thus obtains a wide range of applications.
Existing evacuated die-casting process is generally the gas extracted out by the vacuum valve be arranged on mould in die cavity, in use there are some shortcomings in this method: 1) due to the restriction by vacuum valve exhaust sectional area and overflow notch sectional area, a large amount of high-temperature flue gas that pressure chamber inherence away from vacuum valve produces when pouring into a mould are difficult to quick discharge, because they just can need be discharged outside die cavity along running channel, ingate, die cavity, overflow launder, overflow notch, bleed-off passage and vacuum valve etc. are rear, path length, expends time in many.2) high-temperature flue gas is discharged by vacuum system, the temperature of some critical components as valve, vavuum pump of vacuum system can be made too high, have influence on the normal operation of these parts, and Parts Breakdown rate raises, and reliability reduces.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of die casting equipment of horizontal cold room vacuum die casting machine and utilize it to carry out the method for die casting, there is vacuum effectiveness good, easy maintenance is set, the advantage of failure rate is low, long service life.
For achieving the above object, according to the present invention, provide a kind of die casting equipment of horizontal cold room vacuum die casting machine, it is characterized in that, comprise pressure chamber, compression mod, vacuum valve, the first stop valve, the second stop valve, compressed air reservoir, vacuum system, drift, penetrate bar, control device and displacement transducer, wherein
Described pressure chamber is provided with sprue gate;
Described compression mod comprises fixed half and moving half, described cover half is fixedly mounted in described pressure chamber, described dynamic model coordinates with described cover half and forms die cavity, ingate, exhaust duct and valve pocket, described exhaust duct is positioned at the top of described ingate and is communicated with described ingate by described die cavity, and described exhaust duct is communicated with described valve pocket;
Described vacuum valve is arranged on described valve pocket place, it connects described first stop valve and the second stop valve respectively by valve tube connector, described valve tube connector is through described cover half, and described first stop valve connects described compressed air reservoir, and described second stop valve connects described vacuum system;
Described drift is fixedly connected with described bar of penetrating, and described drift stretches in described pressure chamber;
Described control device is for controlling the running of described vacuum system, and the opening and closing of the first stop valve and the second stop valve;
Institute's displacement sensors is for detecting the position of described drift and sending this position signalling to control device, judge to make control device whether described drift closes described sprue gate, and based on the running of vacuum system described in the position control residing for drift and the opening and closing of the first stop valve and the second stop valve.
Preferably, described vacuum system adopts mechanical vacuum pump.
According to another aspect of the present invention, additionally provide a kind of method utilizing the die casting equipment of horizontal cold room vacuum die casting machine to carry out die casting, it is characterized in that, comprise the following steps:
1) dynamic model and cover half matched moulds, and vacuum valve, the first stop valve and the second stop valve are all closed;
2) molten metal is poured into the inner chamber of pressure chamber by the sprue gate in pressure chamber, then the first stop valve opened by control device, compressed air in compressed air reservoir enters in die cavity by the first stop valve and pipeline and vacuum valve, exhaust passage, arrive in pressure chamber from die cavity through ingate again, finally discharge from the sprue gate pressure chamber;
3) drift reach drives molten metal to flow towards near the direction of die cavity, now continues to pass into compressed air to blow out flue gas, and when displacement transducer detects that sprue gate is closed in drift reach, control device cuts out the first stop valve, stops compressed-air actuated supply;
4) the second stop valve opened by control device, and vacuum system vacuumizes in compression mod;
5) after injection process terminates, control device cuts out the second stop valve, and vacuum system stops vacuumizing, and a die casting circulation terminates.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
1) by the flue gas in pressure chamber, water vapour blowout, decrease the chance entered in die cavity, eliminate the impact on cavity filling process;
2) eliminate the impact of high-temperature flue gas on vacuum system, improve the reliability of vacuum system;
3) utilize displacement transducer to gather the shift position of die casting machine injection drift as the switching signal controlling to blow and vacuumize, avoid therebetween gang up interference;
4) the present invention there is vacuum effectiveness good, easy maintenance be set, the advantage of failure rate is low, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 ~ Fig. 4 is respectively the structural representation of die casting equipment of the present invention when the different operating stage.
In figure, 1-penetrates bar, 2-drift, 3-pressure chamber, 4-cast gate, 5-dynamic model, 6-die cavity, 7-exhaust duct, 8-vacuum valve spool, 9-vacuum valve valve body, 10-vacuum tube, 11-first stop valve, 12-second stop valve, 13-control device, 14-displacement transducer, 15-pressure chamber sprue gate, 16-cover half, 17-pony ladle
18-vacuum system, 19-molten metal 20-compressed air reservoir
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
With reference to Fig. 1 ~ Fig. 4, a kind of die casting equipment of horizontal cold room vacuum die casting machine, comprise pressure chamber 3, compression mod, vacuum valve, drift 2, penetrate bar 1, first stop valve 11, compressed air reservoir, the second stop valve 12, vacuum system 18, control device 13 and displacement transducer 14, wherein
Described pressure chamber is provided with sprue gate 15;
Described compression mod comprises cover half 16 and dynamic model 5, described cover half 16 is fixedly mounted in described pressure chamber 3, described dynamic model 5 coordinates with described cover half 16 and forms die cavity 6, ingate 4, exhaust duct 7 and valve pocket, described exhaust duct 7 is positioned at the top of described ingate 4 and is communicated with described ingate 4 by described die cavity 6, and described valve pocket is communicated with described exhaust duct 7;
Described vacuum valve is arranged on the valve pocket place in described cover half 16, it connects described first stop valve 11 and the second cut-off sudden strain of a muscle 12 by valve tube connector 10, described valve tube connector 10 is through described cover half 16, described first stop valve 11 connects described compressed air reservoir 20, and described second stop valve connects described vacuum system 18;
Described drift 2 is fixedly connected with described bar 1 of penetrating, and described drift 2 stretches in described pressure chamber 3;
Described control device 13 is for controlling the running of described vacuum system 18, and the opening and closing of the first stop valve 11 and the second stop valve 12;
Institute's displacement sensors 14 is for detecting the position of described drift 2 and sending this position signalling to control device 13, judge to make control device 13 whether described drift 2 closes described sprue gate 15, and based on the running of vacuum system 18 described in the position control residing for drift 2 and the opening and closing of the first stop valve 11 and the second stop valve 12.
Further, described vacuum system 18 adopts mechanical vacuum pump.
Further, vacuum valve comprises valve body 9 and spool 8.
The outlet of scavenger system of the present invention is connected with the first stop valve 11 by pipeline, and the first stop valve 11 is connected with vacuum valve body 9 by valve tube connector 10.Whether the on/off state of the first stop valve 11 determines vacuum valve body 9 and is communicated with between compressed air.
The outlet of vacuum system 18 of the present invention is connected with the second stop valve 12 by pipeline, and the second stop valve 12 is connected with vacuum valve body 9 by valve tube connector 10.Whether the on/off state of the second stop valve 12 determines between vacuum valve body 9 with vacuum system 18 and is communicated with.
Control device 13 of the present invention works by exporting control signal control vacuum system 18, first stop valve 11, second stop valve 12.Specifically, control device 13 gathers displacement transducer 14 signal, and the die casting signal combining outside makes corresponding first stop valve 11 or the second stop valve 12 open or close, to open or to close corresponding air blowing, bleed-off passage, control the various actions of evacuated die-casting process device.More particularly, control device 13 can control 18 runnings (stopping, startup, vacuum degree measurement, display, warning etc.) of vacuum system; According to the cast signal of die casting machine, the unlatching of the first stop valve 11 can be controlled, implement to blow; According to the position signalling of drift 2 (coming from displacement transducer 14), the first stop valve 11 can be controlled and close, stop blowing; Control the second stop valve 12 to open simultaneously, implement to vacuumize.After injection, the second stop valve 12 can be closed, stops vacuumizing.
The course of work of evacuated die-casting process method provided by the invention and device is:
First, die casting machine drives dynamic model 5, cover half 16 matched moulds, and the synchronous vacuum valve 9 that drives also closes, and forms the space comprising die cavity 6, exhaust passage 7, ingate 4 of a good seal.Subsequently molten metal 19 suitable for temperature in pony ladle 17 is poured into by the sprue gate 15 in pressure chamber 3 in the inner chamber be made up of pressure chamber 3 and drift 2.Meanwhile, control device 13 outputs signal, and opens the first stop valve 11.Compressed air enters into die cavity 6 by the first stop valve 11 and valve tube connector 10 and vacuum valve body 9, vacuum spool 8, exhaust passage 7.Arrive pressure chamber 3 from die cavity 6 through ingate 4 again, finally discharge from the sprue gate 15 of pressure chamber, the high-temperature flue gas that cast produces like this can be discharged with air, and can not enter die cavity 6.
Be poured, injection starts, and drift 2 moves forward, and now continues to pass into compressed air blowout high-temperature flue gas.When displacement transducer 14 detects that sprue gate 15 is closed in injection punch head 2 reach, control device 13 cuts out the first stop valve 11, stops blowing.Now because drift 2, dynamic model 5, cover half 16, pressure chamber 3 constitute a closed space, the second stop valve 12 opened by control device 13, starts to vacuumize.When injection process is complete, control device 13 cuts out the second stop valve 12, stops vacuumizing, and a die casting circulation terminates.Control device controls each corresponding part reset subsequently, enters the air blowing of next die casting circulation, vacuum.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a die casting equipment for horizontal cold room vacuum die casting machine, is characterized in that, comprises pressure chamber, compression mod, vacuum valve, the first stop valve, the second stop valve, compressed air reservoir, vacuum system, drift, penetrates bar, control device and displacement transducer, wherein,
Described pressure chamber is provided with sprue gate;
Described compression mod comprises fixed half and moving half, described cover half is fixedly mounted in described pressure chamber, described dynamic model coordinates with described cover half and forms die cavity, ingate, exhaust duct and valve pocket, described exhaust duct is positioned at the top of described ingate and is communicated with described ingate by described die cavity, and described exhaust duct is communicated with described valve pocket;
Described vacuum valve is arranged on described valve pocket place, it connects described first stop valve and the second stop valve respectively by valve tube connector, described valve tube connector is through described cover half, and described first stop valve connects described compressed air reservoir, and described second stop valve connects described vacuum system;
Described drift is fixedly connected with described bar of penetrating, and described drift stretches in described pressure chamber;
Described control device is for controlling the running of described vacuum system, and the opening and closing of the first stop valve and the second stop valve;
Institute's displacement sensors is for detecting the position of described drift and sending this position signalling to control device, judge to make control device whether described drift closes described sprue gate, and based on the running of vacuum system described in the position control residing for drift and the opening and closing of the first stop valve and the second stop valve.
2. the die casting equipment of a kind of horizontal cold room vacuum die casting machine according to claim 1, is characterized in that, described vacuum system adopts mechanical vacuum pump.
3. utilize the die casting equipment of the horizontal cold room vacuum die casting machine described in claim 1 to carry out a method for die casting, it is characterized in that, comprise the following steps:
1) dynamic model and cover half matched moulds, and vacuum valve, the first stop valve and the second stop valve are all closed;
2) molten metal is poured into the inner chamber of pressure chamber by the sprue gate in pressure chamber, then the first stop valve opened by control device, compressed air in compressed air reservoir enters in die cavity by the first stop valve and pipeline and vacuum valve, exhaust passage, arrive in pressure chamber from die cavity through ingate again, finally discharge from the sprue gate pressure chamber;
3) drift reach drives molten metal to flow towards near the direction of die cavity, now continues to pass into compressed air to blow out flue gas, and when displacement transducer detects that sprue gate is closed in drift reach, control device cuts out the first stop valve, stops compressed-air actuated supply;
4) the second stop valve opened by control device, and vacuum system vacuumizes in compression mod;
5) after injection process terminates, control device cuts out the second stop valve, and vacuum system stops vacuumizing, and a die casting circulation terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510847758.3A CN105458211A (en) | 2015-11-26 | 2015-11-26 | Die casting device of horizontal type cold chamber vacuum die casting machine and method for utilizing die casting device for die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510847758.3A CN105458211A (en) | 2015-11-26 | 2015-11-26 | Die casting device of horizontal type cold chamber vacuum die casting machine and method for utilizing die casting device for die casting |
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| Publication Number | Publication Date |
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| CN105458211A true CN105458211A (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510847758.3A Pending CN105458211A (en) | 2015-11-26 | 2015-11-26 | Die casting device of horizontal type cold chamber vacuum die casting machine and method for utilizing die casting device for die casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059147A (en) * | 2020-09-24 | 2020-12-11 | 含山盛荣机械配件厂 | Vacuum die-casting die |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0890197A (en) * | 1994-09-19 | 1996-04-09 | Nippondenso Co Ltd | Die casting apparatus and die casting method |
| JP2001001123A (en) * | 1999-06-16 | 2001-01-09 | Toyota Autom Loom Works Ltd | Method and apparatus for die casting |
| CN1701878A (en) * | 2004-04-20 | 2005-11-30 | 东芝机械株式会社 | Die-casting device and vacuum process |
| CN102145381A (en) * | 2010-02-09 | 2011-08-10 | 广东鸿泰科技股份有限公司 | Vacuum apparatus used for high vacuum die casting |
| CN102274948A (en) * | 2010-06-10 | 2011-12-14 | 迪尔工程株式会社 | Method of high quality die casting |
-
2015
- 2015-11-26 CN CN201510847758.3A patent/CN105458211A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0890197A (en) * | 1994-09-19 | 1996-04-09 | Nippondenso Co Ltd | Die casting apparatus and die casting method |
| JP2001001123A (en) * | 1999-06-16 | 2001-01-09 | Toyota Autom Loom Works Ltd | Method and apparatus for die casting |
| CN1701878A (en) * | 2004-04-20 | 2005-11-30 | 东芝机械株式会社 | Die-casting device and vacuum process |
| CN102145381A (en) * | 2010-02-09 | 2011-08-10 | 广东鸿泰科技股份有限公司 | Vacuum apparatus used for high vacuum die casting |
| CN102274948A (en) * | 2010-06-10 | 2011-12-14 | 迪尔工程株式会社 | Method of high quality die casting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059147A (en) * | 2020-09-24 | 2020-12-11 | 含山盛荣机械配件厂 | Vacuum die-casting die |
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Application publication date: 20160406 |
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