CN107414052A - A kind of die casting system of processing and processing method - Google Patents
A kind of die casting system of processing and processing method Download PDFInfo
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- CN107414052A CN107414052A CN201710498348.1A CN201710498348A CN107414052A CN 107414052 A CN107414052 A CN 107414052A CN 201710498348 A CN201710498348 A CN 201710498348A CN 107414052 A CN107414052 A CN 107414052A
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- die casting
- processing
- die
- die cavity
- vacuum
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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
- B22D17/2015—Means for forcing the molten metal into the die
-
- 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
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2069—Exerting after-pressure on the moulding material
-
- 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
- B22D17/32—Controlling equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of die casting system of processing and processing method, mainly solve to eliminate the halfway technical problem of bubble present in prior art, the present invention includes die casting die cavity and microprocessor by using the die casting system of processing, the injection punch head of connection is turned on by first switch valve with die casting die cavity, pipe is taken out by second switch valve, pass through the vacuum extractor of the 3rd controlled valve, the pipe of taking out turns on connection with solution storage device, and the pipe of taking out is provided with kinetic pump with solution storage device junction；Vacuum in die casting die cavity is fed back into microprocessor provided with vacuum transducer in the die casting die cavity, provided with liquid level sensor by liquid level feedback in die cavity to microprocessor, the solution is almag solution；The microprocessor controls the technical scheme of the vacuum extractor, injection punch head, first switch valve, second switch valve and the 3rd controlled valve, preferably resolves the problem, in being processed available for die casting.
Description
Technical field
The present invention relates to die casing for automobile manufacture field, is related specifically to a kind of processing method of die casting system of processing.
Background technology
Although die casting has the advantages of die casting surface quality is high, dimensional accuracy is high, production efficiency is high, die casting holds
Stomata is also easy to produce, causes casting Li Jie hydraulic performance declines.Stomata is that gas residue is formed in die casting.Prevent stomatal limiting value from having two
The measure of aspect：On the one hand it is to monitor the air content in press casting procedure, is on the other hand the sky for excluding to remain in die casting
Gas, but be intended to prevent the function of destroying die casting.To reduce inside die-casting part stomata, die casting mechanical property is improved.
Existing reduction inside die-casting part stomata, the method for improving die casting mechanical property have Ultra-Low Speed die casting, fill chlorine pressure
Casting, vacuum compacting.Wherein, evacuated die-casting process is conventional generation method.But evacuated die-casting process method can not thoroughly eliminate pressure
Bubble in casting.Therefore it provides a kind of good die-casting system of bubble effect and processing method of eliminating is with regard to necessary.
The content of the invention
The technical problems to be solved by the invention are the elimination halfway technical problems of bubble present in prior art.Carry
For a kind of new die casting system of processing and processing method, the die casting system of processing and processing method have elimination bubble effect
The characteristics of good, easy to use, efficiency high.
In order to solve the above technical problems, the technical scheme used is as follows：
A kind of die casting system of processing, the die casting system of processing includes die casting die cavity and microprocessor, with die casting
Part die cavity turns on the injection punch head of connection by first switch valve, takes out pipe by second switch valve, passes through the 3rd switch valve
The vacuum extractor of door, the pipe of taking out turn on connection with solution storage device, and the pipe of taking out is set with solution storage device junction
Dynamic pump；Vacuum in die casting die cavity is fed back into microprocessor, set provided with vacuum transducer in the die casting die cavity
There is liquid level sensor by liquid level feedback in die cavity to microprocessor, the solution is almag solution；The microprocessor control
Make the vacuum extractor, injection punch head, first switch valve, second switch valve and the 3rd controlled valve.
The operation principle of the present invention：By the technical scheme energy that solution is spurted into die casting die cavity after end is vacuumized
Enough reduce air bubble content.By microprocessor, it is opened vacuum extractor, injection punch head, first switch valve, second present invention
Closing valve and the 3rd controlled valve, and by setting vacuum transducer, liquid level sensor, temperature sensor to die casting use environment
Carry out detection and tracing control in real time, it is possible to increase efficiency, effect and the standardization of die-casting process.
In above-mentioned technical proposal, for optimization, further, the vacuum transducer includes temperature-sensitive module and control module,
The temperature-sensitive module includes metal shell, and vacuum chamber is provided with the metal shell, temperature sensing device is provided with vacuum chamber, with sensing
The control change-over circuit of device connection, the control change-over circuit include signal amplification circuit and A/D convertor circuit；The control
Module includes the microprocessing unit with controlling change-over circuit, the display module being connected with microprocessing unit, the temperature sensing device bag
Sensing element unit is included, the sensing element cellular construction is spiral filament structure, and the spiral filament structure includes four layers of spiral shell
Body is revolved, first layer conveyor screw is that secondary tungsten filament is around the conveyor screw formed, second layer conveyor screw around the first main tungsten filament helix shape
For first layer conveyor screw around the second main tungsten filament helix shape around the conveyor screw formed, third layer conveyor screw is that second layer conveyor screw is made
For helical form around the conveyor screw formed, the 4th helical layer body is that third layer conveyor screw makees helical form around the conveyor screw formed；Institute
The tungsten filament line that tungsten filament is spiral multiple twin is stated to combine.
Further, the liquid level sensor quantity is 2, is respectively arranged at the die casting die cavity top and bottom.
Further, the die casting system of processing is additionally provided with temperature adjustment device.
Further, the pipe of taking out is connected by pressure chamber with die casting die cavity, and the pressure chamber is with taking out the seal of tube.
The present invention, which also provides a kind of processing method based on die casting system of processing of the present invention, to be included：
(1) mould is added, die casting die cavity temperature in use adjusting apparatus is heated to 600 DEG C -800 DEG C；
(2) microprocessor control vacuum withdraw device vacuumizes, while is taken out according to the adjustment of the feedback result of vacuum transducer
Vacuum value of velocity；
(3) solution is filled into pressure chamber by kinetic pump, after filling full pressure chamber, injection punch head work will be molten in pressure chamber
Hydraulic pressure is injected in die cavity；
(4) temperature in use adjusting apparatus slowly reduces temperature, and die cavity is cooled down, and solidifies solution, while to die casting
Part applies pressure forming；
(5) die casting of the shaping is taken out.
Further, die casting die cavity temperature in use adjusting apparatus is heated to 600 DEG C in the step (1).
Further, the processing method also includes post-processing the die casting of shaping, and the post processing includes deburring.
Vacuum is different, and the air molecule number in unit volume is just different, and heat is taken away for the resistance wire to generate heat
Ability it is just different, wire temperature is just different because the resistivity of resistance wire is the function of temperature, different vacuum
The difference of resistivity is just caused, then resistance is just different, and pressure drop of the electric current on resistance wire is just different, according to the change of voltage just
Atmospheric pressure, and then measurement of vacuum can be conversed.The present invention utilizes coiled filament mechanism, increases filament contact area.Temperature-sensitive
Element uses wheatstone bridge configuration assembled arrangement, is the bridge circuit that wheatstone bridge configuration is made up of four resistance, this four
Individual resistance is called the bridge arm of electric bridge respectively, and Wheatstone bridge measures the change of physical quantity using the change of resistance, passes through collection
The voltage at variable resistor both ends and then processing, it is possible to calculate the change of corresponding physical quantity, be a kind of very high survey of precision
Measure the calculating of method optimizing heat transfer and measuring principle.For inevitable ambient temperature effect during product use, pass through
Temperature is gathered in real time using temperature sensor, compensates calculating using accurate temperature compensation technology, and temperature is entered
Row real-time display.The present invention can control measurement error the vacuum zone in atmosphere end 30% and 10-3 to 10-4 millibars respectively
10% or so, substantially increase the measurement accuracy of vacuum transducer.Simultaneously because the special helical structure of filament, filament stability and
Vibration resistance can greatly improve.Its anti-seismic performance is significantly better than the product of common stretching filament.It is especially suitable for the transport such as groove tank car
Installing and using on instrument.
Particularly, the present invention is using sensing element of the filamentray structure of double major-minor silk helical structures as temperature-sensitive, to temperature
Measure, greatly add the contact area of sensing element and temperature-sensitive environment, can more accurately reflect temperature change,
Improve Measurement Resolution.For the filament temperature of Pi Lani technologies at 80-120 DEG C, the influence of pumping fluid pollution is smaller, more difficult
Fracture, Pi Lani technologies are not easily susceptible to the influence of mechanical stress, and temperature causes the thermal capacitance of sensor to be made biography by change
Sensor lengthens for the reaction time of pressure change.And Pi Lani technologies possess relatively stable filament temperature, and for pressure
Power change is swift in response.
, being capable of accurate sensing type intracavitary state by respectively setting a liquid level sensor in top and bottom.
Beneficial effects of the present invention：
Effect one, air bubble content is reduced by injection molding in a vacuum；
Effect two, Automated condtrol is carried out by microprocessor, control in real time is carried out to ambient parameter and is perceived, Neng Gouti
High processing efficiency；
Effect three, cost can be reduced by increasing efficiency.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Accompanying drawing 1, die casting system of processing schematic diagram.
Accompanying drawing 2, processing method flow chart.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
This implementation provides a kind of die casting system of processing, such as Fig. 1, the die casting system of processing include die casting die cavity and
Microprocessor, the injection punch head of connection is turned on by first switch valve with die casting die cavity, pipe is taken out by second switch valve,
By the vacuum extractor of the 3rd controlled valve, the pipe of taking out turns on connection with solution storage device, and the pipe of taking out stores up with solution
Cryopreservation device junction is provided with kinetic pump；Vacuum in die casting die cavity is fed back provided with vacuum transducer in the die casting die cavity
To microprocessor, provided with liquid level sensor by liquid level feedback in die cavity to microprocessor, the solution is almag solution；Institute
State microprocessor and control vacuum extractor, injection punch head, first switch valve, second switch valve and the 3rd switch valve
Door.
The operation principle of the present invention：By the technical scheme energy that solution is spurted into die casting die cavity after end is vacuumized
Enough reduce air bubble content.By microprocessor, it is opened vacuum extractor, injection punch head, first switch valve, second present invention
Closing valve and the 3rd controlled valve, and by setting vacuum transducer, liquid level sensor, temperature sensor to die casting use environment
Carry out detection and tracing control in real time, it is possible to increase efficiency, effect and the standardization of die-casting process.
In above-mentioned technical proposal, for optimization, further, the vacuum transducer includes temperature-sensitive module and control module,
The temperature-sensitive module includes metal shell, and vacuum chamber is provided with the metal shell, temperature sensing device is provided with vacuum chamber, with sensing
The control change-over circuit of device connection, the control change-over circuit include signal amplification circuit and A/D convertor circuit；The control
Module includes the microprocessing unit with controlling change-over circuit, the display module being connected with microprocessing unit, the temperature sensing device bag
Sensing element unit is included, the sensing element cellular construction is spiral filament structure, and the spiral filament structure includes four layers of spiral shell
Body is revolved, first layer conveyor screw is that secondary tungsten filament is around the conveyor screw formed, second layer conveyor screw around the first main tungsten filament helix shape
For first layer conveyor screw around the second main tungsten filament helix shape around the conveyor screw formed, third layer conveyor screw is that second layer conveyor screw is made
For helical form around the conveyor screw formed, the 4th helical layer body is that third layer conveyor screw makees helical form around the conveyor screw formed；Institute
The tungsten filament line that tungsten filament is spiral multiple twin is stated to combine.
Preferably, the liquid level sensor quantity is 2, is respectively arranged at the die casting die cavity top and bottom.It is logical
Crossing two liquid level sensors set respectively being capable of real-time perception die casting molding situation.
In order to accelerate efficiency, it is preferable that the die casting system of processing is additionally provided with temperature adjustment device.Adjusted by temperature
The process time that device is preheated and cooled down can be reduced.
Preferably, the pipe of taking out is connected by pressure chamber with die casting die cavity, and the pressure chamber is with taking out the seal of tube.It is tightly connected energy
It is enough to reduce because gas leakage causes pressure inadequate, the defects of taking out material overlong time, aluminium liquid can cooled and solidified quickly, the mouth of pipe will be taken out and blocked up
Plug, take out and expect that the time will be controlled between 1~2s most preferably.In the present embodiment, mold parting surface surrounding is sealed with sealing joint strip, real
Absolute sealing, prevents outside air to be pumped into mold cavity, influences casting quality after existing mould matched moulds
Such as Fig. 2, the processing method based on die casting system of processing in this implementation includes：
(1) mould is added, die casting die cavity temperature in use adjusting apparatus is heated to 600 DEG C -800 DEG C；
(2) microprocessor control vacuum withdraw device vacuumizes, while is taken out according to the adjustment of the feedback result of vacuum transducer
Vacuum value of velocity；
(3) solution is filled into pressure chamber by kinetic pump, after filling full pressure chamber, injection punch head work will be molten in pressure chamber
Hydraulic pressure is injected in die cavity；
(4) temperature in use adjusting apparatus slowly reduces temperature, and die cavity is cooled down, and solidifies solution, while to die casting
Part applies pressure forming；
(5) die casting of the shaping is taken out.
Opened after mould preheating and take out pipe, will be preheating to by taking out pipe by more than 600 DEG C, aluminium liquid be drawn into the moment of pressure chamber because
Take out that mouth of pipe temperature is too low to be solidified, so as to which mouth of pipe blocking will be taken out.
Preferably, die casting die cavity temperature in use adjusting apparatus is heated to 700 DEG C in the step (1).It is heated to 700
DEG C the situation for taking out pipe choking can be reduced to minimum, effect is best.
Preferably, the processing method also includes post-processing the die casting of shaping, and the post processing includes deburring.It is logical
Later handle, the quality of die casting finished product can be improved.
Although the illustrative embodiment of the present invention is described above, in order to the technology of the art
Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the scope of embodiment, to the common skill of the art
For art personnel, as long as long as various change in the spirit and scope of the invention that appended claim limits and determines, one
The innovation and creation using present inventive concept are cut in the row of protection.
Claims (8)
- A kind of 1. die casting system of processing, it is characterised in that：The die casting system of processing includes die casting die cavity and microprocessor Device, the injection punch head of connection is turned on by first switch valve with die casting die cavity, pipe is taken out by second switch valve, by the The vacuum extractor of three controlled valves, the pipe of taking out turns on connection with solution storage device, described to take out pipe and solution storage device Junction is provided with kinetic pump；Vacuum in die casting die cavity is fed back into Wei Chu provided with vacuum transducer in the die casting die cavity Manage device, provided with liquid level sensor by liquid level feedback in die cavity to microprocessor, the solution is almag solution；Micro- place Manage device and control vacuum extractor, injection punch head, first switch valve, second switch valve and the 3rd controlled valve.
- 2. die casting system of processing according to claim 1, it is characterised in that：The vacuum transducer includes temperature-sensitive module And control module, the temperature-sensitive module include metal shell, and vacuum chamber is provided with the metal shell, temperature-sensitive is provided with vacuum chamber Device, the control change-over circuit being connected with induction installation, the control change-over circuit include signal amplification circuit and AD conversion electricity Road；The control module includes the microprocessing unit with controlling change-over circuit, and the display module being connected with microprocessing unit is described Temperature sensing device includes sensing element unit, and the sensing element cellular construction is spiral filament structure, the spiral filament structure Including four helical layer bodies, first layer conveyor screw is secondary tungsten filament around the first main tungsten filament helix shape around the conveyor screw formed, second Helical layer body is that first layer conveyor screw surround the conveyor screw formed around the second main tungsten filament helix shape, and third layer conveyor screw is second Helical layer body makees helical form around the conveyor screw that forms, and the 4th helical layer body is that third layer conveyor screw makees helical form around forming Conveyor screw；The tungsten filament combines for the tungsten filament line of spiral multiple twin.
- 3. die casting system of processing according to claim 1, it is characterised in that：The liquid level sensor quantity is 2, point The die casting die cavity top and bottom is not arranged at.
- 4. die casting system of processing according to claim 1, it is characterised in that：The die casting system of processing is additionally provided with temperature Spend adjusting apparatus.
- 5. die casting system of processing according to claim 1, it is characterised in that：The pipe of taking out passes through pressure chamber and die casting type Chamber connects, and the pressure chamber is with taking out the seal of tube.
- 6. the processing method of the die casting system of processing according to claim 1-5, it is characterised in that：The processing method bag Include：(1) mould is added, die casting die cavity temperature in use adjusting apparatus is heated to 600 DEG C -800 DEG C；(2) microprocessor control vacuum withdraw device vacuumizes, while is vacuumized according to the adjustment of the feedback result of vacuum transducer Speed；(3) solution is filled into pressure chamber by kinetic pump, after filling full pressure chamber, injection punch head works the solution pressure in pressure chamber Inject in die cavity；(4) temperature in use adjusting apparatus slowly reduces temperature, and die cavity is cooled down, and solidifies solution, while die casting is applied Plus-pressure is molded；(5) die casting of the shaping is taken out.
- 7. the processing method of die casting system of processing according to claim 6, it is characterised in that：Will in the step (1) Die casting die cavity temperature in use adjusting apparatus is heated to 600 DEG C.
- 8. the processing method of die casting system of processing according to claim 6, it is characterised in that：The processing method is also wrapped Include includes deburring by the die casting post processing of shaping, the post processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498348.1A CN107414052B (en) | 2017-06-27 | 2017-06-27 | Die casting machining system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498348.1A CN107414052B (en) | 2017-06-27 | 2017-06-27 | Die casting machining system |
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| Publication Number | Publication Date |
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| CN107414052A true CN107414052A (en) | 2017-12-01 |
| CN107414052B CN107414052B (en) | 2020-04-07 |
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| CN201710498348.1A Active CN107414052B (en) | 2017-06-27 | 2017-06-27 | Die casting machining system |
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Citations (8)
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|---|---|---|---|---|
| CN1150921A (en) * | 1995-06-08 | 1997-06-04 | 东芝机械株式会社 | Method of controlling vacuum in vacuum die-casting and vacuum control system for carrying out the same |
| CN200997392Y (en) * | 2006-12-28 | 2007-12-26 | 启东市大阳照明器材有限公司 | Double master and auxiliary tungsten-filament four-spiral filament |
| 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 |
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2017
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