CN103706762A - V-method vacuum casting system - Google Patents
V-method vacuum casting system Download PDFInfo
- Publication number
- CN103706762A CN103706762A CN201310724312.2A CN201310724312A CN103706762A CN 103706762 A CN103706762 A CN 103706762A CN 201310724312 A CN201310724312 A CN 201310724312A CN 103706762 A CN103706762 A CN 103706762A
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- Prior art keywords
- negative pressure
- vacuum
- pressure end
- vavuum pump
- vacuum tank
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Abstract
The invention discloses a V-method vacuum casting system, comprising a vacuum pump, a filter and a gas-water separator, wherein the vacuum pump is provided with a negative pressure end and a positive pressure end; the vacuum pump extracts air from the negative pressure end and exhausts from the positive pressure end; the negative pressure end is connected with the filter, a surge tank and equipment in sequence; the positive pressure end is connected with the gas-water separator. The V-method vacuum casting system is simple in structure and reasonable in design, a negative pressure value generated by the vacuum pump is controlled in the range of -0.04MPa and -0.08MPa. Thus, the requirements of V-method casting on the negative pressure are met, the compacting degree of a sand mold meets the design requirements, and product scrap is avoided.
Description
Technical field
The invention belongs to V method casting technology field, particularly relate to a kind of V method casting vacuum system.
Background technology
At present, the vacuum system that the casting of V method adopts generally consists of vavuum pump, filter and moisture trap, the negative pressure value that vavuum pump produces is all the time with the large minor swing of output, its fluctuating range is larger, cause vacuum system cannot adapt to the needs of different product to pressure, cause sand mold compactability not reach requirement, often occur owing the phenomenon of negative pressure or super negative pressure, cause product rejection.
Summary of the invention
Object of the present invention is just to provide a kind of V method casting vacuum system, has solved the unsettled technical problem of prior art negative pressure.
Object of the present invention realizes by following technical proposals:
A kind of V method casting vacuum system, comprise vavuum pump, filter and moisture trap, vavuum pump has negative pressure end and positive pressure side, this vavuum pump is bled and carries out exhaust from this positive pressure side from this negative pressure end, negative pressure end connects filter, vacuum tank and equipment successively, and positive pressure side is connected with moisture trap.
Further, described vacuum tank has 3, is respectively a 3m
3the vacuum tank of volume and two 5m
3the vacuum tank of volume.
Further, also comprise the controller being connected with vavuum pump, on controller, be connected with frequency converter, setting pressure inductor on vacuum tank, this pressure inductor is connected with frequency converter.
Further, this controller is controlled in vacuum tank negative pressure of vacuum between-0.04MPa～-0.08MPa.
The long reuse of sandbox and pouring molten iron very easily cause breakage to the destruction of sandbox screen pack, and sand is inhaled in vavuum pump and can causes damage, and reduce the service life of vavuum pump.Therefore, filter is to arrange effectively to remove airborne sand, avoids the infringement of vavuum pump, extender service life.
Compared with prior art, beneficial effect of the present invention is: simple in structure, reasonable in design, between be controlled at-0.04MPa of negative pressure value～-0.08MPa that vavuum pump is produced, thereby meet the requirement of V method casting to negative pressure pressure, make sand mold compactability reach designing requirement, avoid product rejection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further illustrated.
As shown in Figure 1, a kind of V method casting vacuum system, comprise vavuum pump 1, filter 2 and moisture trap 3, vavuum pump 1 has negative pressure end and positive pressure side, this vavuum pump 1 is bled and carries out exhaust from this positive pressure side from this negative pressure end, negative pressure end connects filter 2, vacuum tank 4 and sandbox 5 successively, and positive pressure side is connected with moisture trap 3.
Described vacuum tank 4 has 3, is respectively a 3m
3the vacuum tank 4 of volume and two 5m
3the vacuum tank 4 of volume.Vacuum tank 4 is airtight containers, and its effect is mainly to stablize vacuum system pressure, and the effect of Chalk-dust filtering is also played in the impact of buffer system pressure on moulding simultaneously.
Vavuum pump 1 is controlled by controller 6, is connected with frequency converter 7 on controller 6, setting pressure inductor 8 on vacuum tank 4, and this pressure inductor 8 is connected with frequency converter 7.
This controller 6 is controlled the interior negative pressure of vacuum of vacuum tank 4 between-0.04MPa～-0.08MPa.
When work, controller 6 is controlled vavuum pump 1 work, thereby make sandbox 5 produce negative pressure, carries out casting mold moulding.Air enters atmosphere through vacuum tank 4, filter 2, vavuum pump 1 and moisture trap 3.Negative pressure value in pressure inductor 8 induction vacuum tanks 4, and transmission of signal is to frequency converter 7, is controlled start and stop and the rotating speed of vavuum pump 1, thereby control negative pressure value in the scope of needs by frequency converter 7 by controller 6.In order to carry out a plurality of casting mold moulding simultaneously, can be that vacuum tank 4 is connected with sandbox 5 by negative pressure distributor 9 at the negative pressure end installation negative pressure distributor 9(of vacuum system), thus be connected with a plurality of sandboxes 5, carry out respectively casting mold moulding, operating efficiency is higher.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a V method is cast vacuum system, comprise vavuum pump, filter and moisture trap, it is characterized in that: vavuum pump has negative pressure end and positive pressure side, this vavuum pump is bled and carries out exhaust from this positive pressure side from this negative pressure end, negative pressure end connects filter, vacuum tank and equipment successively, and positive pressure side is connected with moisture trap.
2. V method casting vacuum system according to claim 1, is characterized in that: described vacuum tank has 3, is respectively a 3m
3the vacuum tank of volume and two 5m
3the vacuum tank of volume.
3. V method according to claim 2 is cast vacuum system, it is characterized in that: also comprise the controller being connected with vavuum pump, on controller, be connected with frequency converter, and setting pressure inductor on vacuum tank, this pressure inductor is connected with frequency converter.
4. V method according to claim 3 casting vacuum system, is characterized in that: this controller is controlled in vacuum tank negative pressure of vacuum between-0.04MPa～-0.08MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724312.2A CN103706762A (en) | 2013-12-25 | 2013-12-25 | V-method vacuum casting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724312.2A CN103706762A (en) | 2013-12-25 | 2013-12-25 | V-method vacuum casting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103706762A true CN103706762A (en) | 2014-04-09 |
Family
ID=50400311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310724312.2A Pending CN103706762A (en) | 2013-12-25 | 2013-12-25 | V-method vacuum casting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103706762A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179729A (en) * | 2014-08-08 | 2014-12-03 | 威海文润测控设备有限公司 | Full-automatic efficient oligodynamic energy-saving and environment-friendly vacuum system |
| CN109108232A (en) * | 2018-09-21 | 2019-01-01 | 山西华翔集团股份有限公司 | V method casting pressure stabilizing filter device and V method casting system |
-
2013
- 2013-12-25 CN CN201310724312.2A patent/CN103706762A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179729A (en) * | 2014-08-08 | 2014-12-03 | 威海文润测控设备有限公司 | Full-automatic efficient oligodynamic energy-saving and environment-friendly vacuum system |
| CN104179729B (en) * | 2014-08-08 | 2017-05-03 | 威海文润测控设备有限公司 | Full-automatic efficient oligodynamic energy-saving and environment-friendly vacuum system |
| CN109108232A (en) * | 2018-09-21 | 2019-01-01 | 山西华翔集团股份有限公司 | V method casting pressure stabilizing filter device and V method casting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140409 |