CN203621457U - Die-casting die - Google Patents
Die-casting die Download PDFInfo
- Publication number
- CN203621457U CN203621457U CN201420006559.0U CN201420006559U CN203621457U CN 203621457 U CN203621457 U CN 203621457U CN 201420006559 U CN201420006559 U CN 201420006559U CN 203621457 U CN203621457 U CN 203621457U
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- CN
- China
- Prior art keywords
- die
- cover half
- dynamic model
- runner
- casting
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- Expired - Fee Related
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Abstract
The utility model discloses a die-casting die, which comprises a die frame, wherein a die cavity is arranged in the die frame, the die frame comprises a moving die and a fixed die, and the die-casting die is connected with an evacuating device. The air in the die cavity can be evacuated by connecting the evacuating device on the die-casting die before high pressure gas is input into liquid metal, and the die-casting die solves the problems that air holes are produced on workpiece during the die-casting forming process without arranging an exhaust port, thereby greatly improving quality of formed workpiece. An evacuating flow channel is sealed through a slide valve which is driven by starting an oil cylinder after the die cavity is evacuated, thereby preventing the liquid metal from overflowing, and improving safety and air tightness of the die-casting die.
Description
Technical field
The utility model relates to a kind of forming materials technical field, particularly relates to a kind of die casting.
Background technology
Die casting, or claim compression casting, be a kind of metal casting technique, it is to utilize high pressure to be pressed in die cavity the liquid metal of high temperature, and the structure of die cavity is identical with product configurations to be formed, after the liquid metal cooled and solidified in die cavity, taken out, be the workpiece that needs shaping.
In prior art, a kind of die casting is disclosed in Chinese invention patent prospectus 201210353368.7, comprise have cover half die cavity cover half, be arranged on the dynamic model with dynamic model die cavity of cover half below, cover half die cavity matches with dynamic model die cavity, and cover half is provided with cover half mold insert, and dynamic model is provided with dynamic model mold insert, cover half mold insert matches with dynamic model mold insert, on dynamic model, be also provided with the slide block that can slide thereon, wherein, cover half mold insert and dynamic model mold insert are made up of beallon material.Beallon material has the good characteristic such as high strength, good heat dissipation, thereby the mold insert thermal diffusivity of die casting of the present invention is very good, in the process of processed finished products, can shorten the molding cycle of product, increases work efficiency, and reduces production costs.
But, in extrusion process, there is at present a difficult point, on workpiece after die casting, tend to exist pore exactly, this is because before the metal melting enters die cavity, in die cavity, be full of air, in the time that high-pressure air source is pressed into liquid metal, the flow velocity of liquid metal is very fast, but this also can cause air trapping, because air is difficult to escape when Fast Filling mould.Thereby die casting of the prior art reduces this problem by lay the mode of exhaust outlet on parting line conventionally, even if be like this but that very accurate technique also can affect forming quality by residual lower pore in foundry goods centre, so often need to complete by secondary operations the structure that some cannot complete by casting, for example boring, polishing etc., operating efficiency is not high, complex steps.
Utility model content
Technical problem to be solved in the utility model be provide for the above-mentioned state of the art a kind of can be by the die casting of the workpiece once-forming in die cavity.
For achieving the above object, the utility model provides following technical scheme:
A kind of die casting, comprises that inside offers the die frame of die cavity, and described die frame includes mobilizable dynamic model and fixing cover half, and the outer wall of described dynamic model is closely connected described die frame sealing with the outer wall of cover half,
The inwall of described dynamic model has been recessed to form dynamic model chamber, and the inwall of described cover half has been recessed to form cover half chamber, and described dynamic model chamber coordinates the die cavity described in forming with described cover half chamber,
On described dynamic model outer wall, offer injection port, described dynamic model inside is provided with the runner that is communicated with described injection port and described die cavity,
Wherein, also include vacuum extractor, include exhaust tube and aspiration pump, described exhaust tube is connected on described aspiration pump;
Described cover half inside offers the runner that vacuumizes that is communicated with described vacuum extractor and described die cavity, described in described exhaust tube is fixed on, vacuumizes in runner;
On described cover half outer wall, be fixed with oil cylinder, described in vacuumize and in runner, be provided with the guiding valve by described hydraulic oil cylinder driving, described guiding valve can by described in vacuumize runner sealing.
As preferably, on described cover half, be provided with guide rod, described dynamic model is set on described guide rod and can slides along described guide rod.
Compared with prior art, the utility model has the advantage of: be on die casting, to connect a vacuum extractor, before gases at high pressure input liquid metal, air in die cavity is found time, do not need on die casting, to arrange again exhaust outlet, solve the problem that can generate pore in casting forming process on workpiece, greatly improved the quality of Forming Workpiece; After die cavity is pumped into vacuum, seal and vacuumize runner by oil cylinder startup band movable pulley, prevent that liquid metal is excessive, improve security and the air-tightness of die casting.
Brief description of the drawings
Fig. 1 is the structural representation of die casting in the utility model embodiment;
Fig. 2 is structural representation when die casting is closed during Fig. 1 implements.
Reference numeral:
1, die frame; 2, die cavity; 3, dynamic model; 3.1, the outer wall of dynamic model; 3.1.1, injection port; 3.2, the inwall of dynamic model; 3.3, dynamic model chamber; 4, cover half; 4.1, the outer wall of cover half; 4.2, the inwall of cover half; 4.3, cover half chamber; 5, runner; 6, high-voltage power supply; 6.1, liquid outlet; 7, vacuum extractor; 7.1, exhaust tube; 7.2, aspiration pump; 8, vacuumize runner; 8.1, guiding valve; 9, oil cylinder; 10, guide rod.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As depicted in figs. 1 and 2, the present embodiment is a kind of die casting, comprises that inside offers the die frame 1 of die cavity 2, and described die frame includes mobilizable dynamic model 3 and fixing cover half 4, the outer wall 3.1 of described dynamic model and the outer wall of cover half 4.1 are closely connected described die frame sealing
The inwall 3.2 of described dynamic model has been recessed to form dynamic model chamber 3.3, and the inwall 4.2 of described cover half has been recessed to form cover half chamber 4.3, and described dynamic model chamber coordinates the die cavity described in forming with described cover half chamber,
On described dynamic model outer wall, offer injection port 3.1.1, described dynamic model inside is provided with the runner 5 that is communicated with described injection port and described die cavity, the liquid outlet 6.1 of injection port and high-voltage power supply 6 is communicated with, and the liquid metal of high temperature, by flowing in described injection port, enters into die cavity through runner.
Described die casting also includes vacuum extractor 7, includes exhaust tube 7.1 and aspiration pump 7.2, and aspiration pump is arranged on outside die casting, and exhaust tube is connected on described aspiration pump;
Described cover half inside offer be communicated with described vacuum extractor and described die cavity vacuumize runner 8, described in described exhaust tube is fixed on, vacuumize in runner;
On described cover half outer wall, be fixed with oil cylinder 9, described in vacuumize and in runner, be provided with the guiding valve 8.1 by described hydraulic oil cylinder driving, described guiding valve can by described in vacuumize runner sealing.
In the time that aspiration pump startup is bled, hydraulic oil cylinder driving guiding valve is opened, and air is drawn into and vacuumizes runner from die cavity, then is drawn out of through exhaust tube; After die cavity is pumped into vacuum, seal and vacuumize runner by oil cylinder startup band movable pulley, prevent that high pressure person liquid metal is excessive from vacuumize runner, causes danger in the process of mould cavity liquid injecting.
On described cover half, be provided with guide rod 10, described dynamic model 3 is set on described guide rod and can slides along described guide rod, so just can drive dynamic model 3 to slide on guide rod by actuating unit and control the folding of dynamic model and cover half 4.In the time that forming technology finishes, drive dynamic model to separate with cover half, take out workpiece.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. a die casting, comprises that inside offers the die frame of die cavity, and described die frame includes mobilizable dynamic model and fixing cover half, and the outer wall of described dynamic model is closely connected described die frame sealing with the outer wall of cover half,
The inwall of described dynamic model has been recessed to form dynamic model chamber, and the inwall of described cover half has been recessed to form cover half chamber, and described dynamic model chamber coordinates the die cavity described in forming with described cover half chamber,
On described dynamic model outer wall, offer injection port, described dynamic model inside is provided with the runner that is communicated with described injection port and described die cavity,
It is characterized in that:
Also include vacuum extractor, include exhaust tube and aspiration pump, described exhaust tube is connected on described aspiration pump;
Described cover half inside offers the runner that vacuumizes that is communicated with described vacuum extractor and described die cavity, described in described exhaust tube is fixed on, vacuumizes in runner;
On described cover half outer wall, be fixed with oil cylinder, described in vacuumize and in runner, be provided with the guiding valve by described hydraulic oil cylinder driving, described guiding valve can by described in vacuumize runner sealing.
2. die casting according to claim 1, is characterized in that: on described cover half, be provided with guide rod, described dynamic model is set on described guide rod and can slides along described guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006559.0U CN203621457U (en) | 2014-01-02 | 2014-01-02 | Die-casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006559.0U CN203621457U (en) | 2014-01-02 | 2014-01-02 | Die-casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203621457U true CN203621457U (en) | 2014-06-04 |
Family
ID=50807977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420006559.0U Expired - Fee Related CN203621457U (en) | 2014-01-02 | 2014-01-02 | Die-casting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203621457U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694846A (en) * | 2016-12-27 | 2017-05-24 | 高州市金松铸造有限公司 | Multi-pouring-gate die-casting die |
| CN106735063A (en) * | 2016-12-27 | 2017-05-31 | 高州市金松铸造有限公司 | Cooling die casting |
| CN106735064A (en) * | 2016-12-27 | 2017-05-31 | 高州市金松铸造有限公司 | Die casting |
-
2014
- 2014-01-02 CN CN201420006559.0U patent/CN203621457U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694846A (en) * | 2016-12-27 | 2017-05-24 | 高州市金松铸造有限公司 | Multi-pouring-gate die-casting die |
| CN106735063A (en) * | 2016-12-27 | 2017-05-31 | 高州市金松铸造有限公司 | Cooling die casting |
| CN106735064A (en) * | 2016-12-27 | 2017-05-31 | 高州市金松铸造有限公司 | Die casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20160102 |
|
| EXPY | Termination of patent right or utility model |