CN102962428B - Environmental-friendly energy-saving die-casting machine electrohydraulic control system and energy-saving method - Google Patents
Environmental-friendly energy-saving die-casting machine electrohydraulic control system and energy-saving method Download PDFInfo
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- CN102962428B CN102962428B CN201210467141.5A CN201210467141A CN102962428B CN 102962428 B CN102962428 B CN 102962428B CN 201210467141 A CN201210467141 A CN 201210467141A CN 102962428 B CN102962428 B CN 102962428B
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Abstract
The invention relates to an environmental-friendly energy-saving die-casting machine electrohydraulic control system, which is characterized in that the system comprises a large oil pump (PU2), a small oil pump (PU1), a die closing valve (DR2) and a die adjusting valve (DR1), the output end of large oil pump (PU2) is respectively connected with the oil inlet passages of the die closing valve (DR2) and the die adjusting valve (DR1) through a solenoid valve (A5) and a proportional overflow valve (A4), an unloading valve (A2) is additionally connected at the outlet end of the large oil pump (PU2), the output end of the unloading valve (A2) is communicated with the oil inlet end of an energy storage device (ACC3), and the output end of the energy storage device (ACC3) is respectively connected with the oil inlet passages of the die closing valve (DR2) and the die adjusting valve (DR1) through a solenoid valve (A3). The environmental-friendly energy-saving die-casting machine electrohydraulic control system has the advantages that the motor power and the pump displacement are reduced by 50 percent, approximate 50-60 percent of energy can be saved, the action stability is high, the response sensitivity is high and the like.
Description
Technical field
the present invention relates to a kind of die casting machine, especially a kind of compressor hydraulic system, specifically a kind of environment-friendly and energy-efficient die casting machine electrohydraulic control system with energy storage equipment and power-economizing method.
Background technology
At present, the hydraulic system of tradition die casting machine is all the motor pump combination of common electric machine and constant displacement pump composition, in the hydraulic system of constant displacement pump, oil pump motor provides constant flow with constant rotating speed, recent years also just increases pressure proportioning valve and flow proportion valve on oil circuit, and the required pressure of work and uninterrupted are that depended on pressure proportioning valve and flow proportion valve regulate, come controlled pressure or uninterrupted by the aperture of adjustment pressure or flow proportion valve.Unnecessary hydraulic oil is refluxed by overflow valve, and this process is called that high pressure dams, and the energy loss caused by it is generally about 50%.Other spill losses and caloric value waste energy 20%.And there is the shortcomings such as energy consumption is high, noise is large, oil temperature is high, reaction sensitivity is poor in this system, applicant carried out improvement for this reason, devise the good Hydraulic System of Pressure-Casting Machine of a kind of energy-saving effect, refer to Chinese patent application 201220189444.0, but still there is complex structure in this system, the problem that loss is larger, must be improved.
Summary of the invention
The object of the invention is high for existing Hydraulic System of Pressure-Casting Machine energy consumption, waste large problem, design a kind of environment-friendly and energy-efficient die casting machine electrohydraulic control system, with entering to provide a kind of power-economizing method.
One of technical scheme of the present invention is:
A kind of environment-friendly and energy-efficient die casting machine electrohydraulic control system, it is characterized in that it comprises large oil pump PU2 and little oil pump PU1, matched moulds valve DR2 and die adjustment valve DR1, the output of large oil pump PU2 is connected with the oil inlet passage of die adjustment valve DR1 with matched moulds valve DR2 with proportional pressure control valve A4 respectively by magnetic valve A5, unloader A2 is also connected with at the port of export of large oil pump PU2, the output of unloader A2 is connected with the oil inlet end of energy storage device ACC3, and the output of energy storage device ACC3 is connected with the oil inlet passage of die adjustment valve DR1 with matched moulds valve DR2 respectively by magnetic valve A3.
The output of described large oil pump PU2 is connected with overflow valve A1, and the output of overflow valve A1 is connected with the oil returning tube of matched moulds valve DR2 and die adjustment valve DR1.
Two of technical scheme of the present invention is:
A kind of die casting machine power-economizing method, is characterized in that hydraulic oil is oil-filled toward energy storage device ACC3 through check valve when matched moulds valve and die adjustment valve do not work; When matched moulds valve works, size pump is fuel feeding simultaneously, and the hydraulic oil of energy storage device supplements flow required when die cylinder works.
Beneficial effect of the present invention:
The present invention passes through an energy accumulating device in parallel in proportioning valve exit, thus reduce power and the pump delivery of motor, oil-filled toward energy accumulating device in the gap of die casting machine action, the flow of supplementary action of draining the oil at the time standby energy accumulating device of mould assembling action, fully applies energy.Thus the energy can saved up to 50%, reach the object of economize on electricity and protection fluid pressure line, and improve pressure and flow accuracy, improve speed, increase efficiency, reduce noise.
The power of motor of the present invention and pump delivery reduce 50%, can saving energy 50%-60%.
Release energy during matched moulds of the present invention, reach higher closure pressing speed.
Stable action of the present invention, is quick on the draw.
Accompanying drawing explanation
Fig. 1 is hydraulic system principle figure of the present invention.
In figure: DV1 is check valve, PG12, PG6 are pressure valve, and PP1, PP2 are fluid pressure line, and HMZSQ is die cylinder, and TMMD is mode transfer motor, and A1 is overflow valve, and A4 is proportional pressure control valve not, and A2 magnetic valve is made unloader and used.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As shown in Figure 1.
A kind of environment-friendly and energy-efficient die casting machine electrohydraulic control system, it comprises large oil pump PU2 and little oil pump PU1, matched moulds valve DR2 and die adjustment valve DR1, the output of large oil pump PU2 is connected with the oil inlet passage of die adjustment valve DR1 with matched moulds valve DR2 with proportional pressure control valve A4 respectively by magnetic valve A5, unloader A2 is also connected with at the port of export of large oil pump PU2, the output of unloader A2 is connected with the oil inlet end of energy storage device ACC3, and the output of energy storage device ACC3 is connected with the oil inlet passage of die adjustment valve DR1 with matched moulds valve DR2 respectively by magnetic valve A3.The output of described large oil pump PU2 is connected with overflow valve A1, and the output of overflow valve A1 is connected with the oil returning tube of matched moulds valve DR2 and die adjustment valve DR1.
Power-economizing method of the present invention is:
1., when matched moulds valve DR2 and die adjustment valve DR1 does not work, magnetic valve A2 obtains electric, and hydraulic oil is oil-filled toward energy storage device ACC3 through check valve.
2., when matched moulds valve works, magnetic valve A2, A5 obtains electric, and size pump is fuel feeding simultaneously, and magnetic valve A3 obtains electric, and the hydraulic oil of energy storage device ACC3 supplements flow required when die cylinder HMZSQ works.
The installation and use of the hydraulically-controlled one-way valve that the present invention does not relate to, Pressure gauge etc. is identical with existing hydraulic system.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (2)
1. an environment-friendly and energy-efficient die casting machine electrohydraulic control system, it is characterized in that it comprises large oil pump (PU2) and little oil pump (PU1), matched moulds valve (DR2) and die adjustment valve (DR1), the output of large oil pump (PU2) is connected with the oil inlet passage of matched moulds valve (DR2) with die adjustment valve (DR1) with proportional pressure control valve (A4) respectively by the first magnetic valve (A5), unloader (A2) is also connected with at the port of export of large oil pump (PU2), the output of unloader (A2) is connected with the oil inlet end of energy storage device (ACC3), the output of energy storage device (ACC3) is connected with the oil inlet passage of matched moulds valve (DR2) with die adjustment valve (DR1) respectively by the second magnetic valve (A3), oil-filled toward energy storage device (ACC3) in the gap of die casting machine action, at time standby energy storage device (ACC3) flow of draining the oil needed for supplementary matched moulds of mould assembling action.
2. energy-saving Hydraulic System of Pressure-Casting Machine according to claim 1, it is characterized in that the output of described large oil pump (PU2) is connected with overflow valve (A1), the output of overflow valve (A1) is connected with the oil returning tube of matched moulds valve (DR2) and die adjustment valve (DR1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467141.5A CN102962428B (en) | 2012-11-19 | 2012-11-19 | Environmental-friendly energy-saving die-casting machine electrohydraulic control system and energy-saving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467141.5A CN102962428B (en) | 2012-11-19 | 2012-11-19 | Environmental-friendly energy-saving die-casting machine electrohydraulic control system and energy-saving method |
Publications (2)
| Publication Number | Publication Date |
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| CN102962428A CN102962428A (en) | 2013-03-13 |
| CN102962428B true CN102962428B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210467141.5A Expired - Fee Related CN102962428B (en) | 2012-11-19 | 2012-11-19 | Environmental-friendly energy-saving die-casting machine electrohydraulic control system and energy-saving method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894582A (en) * | 2012-12-28 | 2014-07-02 | 宜兴市佳晨压铸机制造有限公司 | Novel hydraulic control system of die casting machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817611A (en) * | 2006-03-07 | 2006-08-16 | 太原理工大学 | Injection machine system with electromechanical liquid composite control |
| CN2925841Y (en) * | 2005-05-31 | 2007-07-25 | 佛山伊之密精密机械有限公司 | Oil-pressure servo controller of injection molding machine |
| CN201470857U (en) * | 2009-08-10 | 2010-05-19 | 苏州三基机械有限公司 | Fully-vertically extrusion forging equipment |
| CN202621870U (en) * | 2012-04-28 | 2012-12-26 | 宜兴市佳晨压铸机制造有限公司 | Hydraulic system of energy-saving die-casting machine |
-
2012
- 2012-11-19 CN CN201210467141.5A patent/CN102962428B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2925841Y (en) * | 2005-05-31 | 2007-07-25 | 佛山伊之密精密机械有限公司 | Oil-pressure servo controller of injection molding machine |
| CN1817611A (en) * | 2006-03-07 | 2006-08-16 | 太原理工大学 | Injection machine system with electromechanical liquid composite control |
| CN201470857U (en) * | 2009-08-10 | 2010-05-19 | 苏州三基机械有限公司 | Fully-vertically extrusion forging equipment |
| CN202621870U (en) * | 2012-04-28 | 2012-12-26 | 宜兴市佳晨压铸机制造有限公司 | Hydraulic system of energy-saving die-casting machine |
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Address after: 214203 Fukang Road, Baihe industrial district, Xinjie street, Wuxi, Jiangsu, Yixing Patentee after: Jiangsu Jiachen Die-Casting Machine Manufacturing Co., Ltd. Address before: 214203, Fukang Road, Baihe industrial district, Xinjie street, Jiangsu, Wuxi, Yixing 56 Patentee before: Yixing Jiachen Die-casting Machine Manufacturing Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20161119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |