CN1724191A - System of hydraulic pressure controlling for fast ocking die of semisolid forming hydraulic pressure machine - Google Patents
System of hydraulic pressure controlling for fast ocking die of semisolid forming hydraulic pressure machine Download PDFInfo
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- CN1724191A CN1724191A CN 200410020081 CN200410020081A CN1724191A CN 1724191 A CN1724191 A CN 1724191A CN 200410020081 CN200410020081 CN 200410020081 CN 200410020081 A CN200410020081 A CN 200410020081A CN 1724191 A CN1724191 A CN 1724191A
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Abstract
A hydraulic control system for quickly locking the mould of hydraulic press used for semi-solid shaping is composed of proportional pumps, valve groups, mould-locking cylinder, high-speed cylinder, push-out cylinder, liquid-filling cylinder and valve, slide block, stroke controller and switch, pressure transformer, and microprocessor. Their connection scheme is also disclosed. Its advantages are quickly applying pressure and stably holding the pressure.
Description
Technical field
The invention belongs to the hydraulic press technical field, particularly relate to the quick locked mode hydraulic control system of a kind of semisolid forming hydraulic press.
Background technology
The quick locked mode hydraulic control system of present known semisolid forming hydraulic press, it then is equipped with prefill valve at the master cylinder epicoele for realizing descending requirement fast, and prefill valve is connected with the control valve and the pump group of control prefill valve.Hydraulic press is in quick descending, for making master cylinder be filled fluid, needing big flow prefill valve and supporting with it control assembly to carry out logic switches and pump group fuel feeding, cause the quick locked mode hydraulic control system of semisolid forming hydraulic press complex structure, system huge, hydraulic press manufacturing cost height, maintenance difficult, inefficiency and poor stability, and directly influence the quality of converted products.
Summary of the invention
The present invention provides a kind of semisolid forming hydraulic press quick locked mode hydraulic control system for solving the technical problem that exists in the known technology.
The present invention seeks to control the quick locked mode hydraulic press of assurance semisolid forming hydraulic press has enough pressure and stable pressurize ability, and idle running speed and certain pressing speed are faster arranged.
The present invention be directed to the semisolid forming hydraulic press is to non-complete liquid state, and equipment that non-again fully solid-state metal paste is processed promptly takes into full account semi-solid metal slurry and has characteristics such as setting time is short, solidification shrinkage rate is little and carry out system's control.
The operation principle of the quick locked mode hydraulic control system of semisolid forming hydraulic press:
1. locked mode control fast
Hydraulic system is made up of motor, hydraulic pump, valve group, prefill valve etc.When forcing press was received dropping signal, the next oil of hydraulic pump entered quick cylinder through valve and orders about piston decline, thereby slide block is descended, and locked mode cylinder piston is decline fast thereupon also.Prefill valve is opened under the self-priming state, to the repairing of locked mode cylinder epicoele.Because fast cylinder diameter is very little, the quick speed when descending of slide block is very fast, and its speed equals the area of pump discharge than quick cylinder.Pump is a proportional variable pump, and flow can be provided with, control, so it is fast to have satisfied idle running speed, and the purpose of quick locked mode.
2. intelligence compacting control
Motor operation drives the proportional variable pump running, and pump comes oil to enter the locked mode cylinder through the valve group, and the locked mode cylinder piston rod links to each other with slide block, thereby slide block is descended.After slide block touches workpiece, begin to boost.Because selected proportional pressure control valve in the system for use, so the pressure of locked mode cylinder is set, regulate and guaranteed by proportional pressure control valve, i.e. the constant pressure of locked mode, adjustable.At this moment, the magnetic valve commutation comes oil to enter cavity filling jar through the valve group proportional variable pump.Simultaneously, the low pressure large discharge pump comes oil also to enter the cavity filling jar epicoele, forces the cavity filling jar piston rod to descend fast.The piston rod of cavity filling jar links to each other with drift in the mould, the cavity filling jar piston rod descends, making drift touch workpiece boosts, the pressure of cavity filling jar is set, adjusting is guaranteed by proportional pressure control valve, because of system has selected proportional variable pump for use, pressing speed can reach the variation of flow by the electric current of regulating proportioning pump again.
The characteristics of this control system: 1, the changeable pressure of forcing press.Pressure with proportional pressure control valve control locked mode cylinder, cavity filling jar.2, speed is variable.Stepless speed regulation in the time of can realizing suppressing with proportional variable pump.3, adopt touch-screen to show, be provided with pressure, speed and displacement by sensor.
The present invention can realize the quick locked mode hydraulic control of semisolid forming hydraulic press, realizes the required step of this press processing, makes hydraulic press can finish following action a semi-automatic technology:
Slide block is descending fast, and--it is descending that slide block slows down, and------cavity filling jar is descending fast, and--cavity filling jar slows down descending and pressurizes, and--cavity filling jar is held the pressurization that continues, and----the cavity filling jar backhaul stops, and------the slide block backhaul stops, and--liftout tank ejects, and--liftout tank ejects and stops and--liftout tank is return---liftout tank of delaying time is return and stopped in the slide block backhaul in the slide block pressure release in cavity filling jar pressure release backhaul in the slide block pressurize in slide block pressurization.
The technical scheme that the quick locked mode hydraulic control system of semisolid forming hydraulic press of the present invention is taked is:
The quick locked mode hydraulic control system of semisolid forming hydraulic press, constitute by oil pump, magnetic valve, oil circuit and microprocessor, be characterized in: proportioning pump (1,2) links to each other with valve group (12), valve group (12) links to each other with valve group (13), valve group (18), valve group (13) links to each other with locked mode cylinder (16) epicoele, quick cylinder (14) epicoele through valve group (26), valve group (13) links to each other with locked mode cylinder (16) cavity of resorption, and valve group (12) links to each other with liftout tank (24) epicoele, cavity of resorption through valve group (23); Pump (3) links to each other with valve group (12), valve group (18), and valve group (18) links to each other with cavity filling jar (19) epicoele, cavity of resorption; Pump (4) links to each other with locked mode cylinder (16) epicoele, and locked mode cylinder (16) epicoele links to each other with prefill valve (17); Pump (5) is through valve group (22) control prefill valve (17); Slide block (15) is equipped with journey controller (10), and cavity filling jar (19) is equipped with journey controller (11), and liftout tank (24) is equipped with travel switch (25); Valve group (13) pipeline that links to each other with valve group (26) is equipped with pressure transmitter (8), and cavity filling jar (19) epicoele pipeline is equipped with pressure transmitter (9); Valve group, journey controller, pressure frequency converter are connected with microprocessor.
The present invention can also adopt following technical measures:
The quick locked mode hydraulic control system of described semisolid forming hydraulic press is characterized in: valve group (12) pipeline that links to each other with valve group (18) is equipped with proportional pressure control valve (7).
The quick locked mode hydraulic control system of described semisolid forming hydraulic press is characterized in: pump (4) can be used for the slide block pressurize for the manual variable pump of low discharge, at fuel-displaced pipeline proportional pressure control valve (6) is housed.
The quick locked mode hydraulic control system of described semisolid forming hydraulic press is characterized in: pump (3) is the low pressure vane pump in large discharge capacity.
The quick locked mode hydraulic control system of described semisolid forming hydraulic press is characterized in: ram travel controller (10), cavity filling jar journey controller (11) are stroke setting, demonstration and signal transmitter.
The quick locked mode hydraulic control system of described semisolid forming hydraulic press is characterized in: pump (5) connects the elevating mechanism of hydraulic press guide rail through valve group (22).Pump (5) can be low discharge low voltage control pump.
The quick locked mode hydraulic control system of described semisolid forming hydraulic press, be characterized in: microprocessor is furnished with touch-screen, realizes being provided with and control by touch-screen.
Control system main element of the present invention effect:
Proportioning pump---can realize stepless discharge capacity, stepless speed regulation within the specific limits when reaching compacting.
The low pressure vane pump in large discharge capacity---participate in the descending fast of cavity filling jar.
The manual variable pump of low discharge---be used for the slide block pressurize.
The lifting of low discharge low voltage control pump---hydraulic pressure guide rail, the unlatching of prefill valve control piston.
Proportional pressure control valve---regulate, control system pressure, and stepless voltage regulation within the specific limits.
Pressure transmitter---signalling component of pressure is set, can show, adjust by touch-screen.
The stroke digital display---can the slide position be set by touch-screen, can be provided with, demonstration, sender.
Advantage and good effect that the present invention has are:
The quick locked mode hydraulic control system of semisolid forming hydraulic press, can guarantee that the quick locked mode hydraulic press of semisolid forming hydraulic press has enough pressure and stable pressurize ability, idle running speed and certain pressing speed are faster arranged again, be suitable for characteristics such as the semi-solid metal slurry setting time is short, solidification shrinkage rate is little.The present invention is simple in structure, precise control, working stability, efficient height, and has improved the quality of converted products greatly, has reduced the hydraulic press manufacturing cost.
Description of drawings
Fig. 1 is the quick locked mode hydraulic control system of a semisolid forming hydraulic press of the present invention structural representation.
Among the figure: 1. proportional variable pump, 2. proportional variable pump, 3. low pressure vane pump in large discharge capacity, 4. the manual variable pump of low discharge, 5. low discharge low voltage control pump, 6. proportional pressure control valve, 7. proportional pressure control valve, 8. pressure transmitter, 9. pressure transmitter, 10. stroke digital display, 11. stroke digital display, 12. valve group, 13. valve group, 14. quick cylinder, 15. slide block, 16. locked mode cylinder, 17. prefill valve, 18. valve group, 19. cavity filling jar, 20. magnetic valve, 21. valve, 22. valve group, 23. valve group, 24. liftout tank, 25. travel switch, 26. valve group.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1.
The quick locked mode hydraulic control system of semisolid forming hydraulic press, constitute by oil pump, magnetic valve, oil circuit and microprocessor, its structure and connected mode: proportional variable pump 1 links to each other with valve group 12 with proportional variable pump 2, valve group 12 links to each other with valve group 13, valve group 18, valve group 13 links to each other with locked mode cylinder 16 epicoeles, quick cylinder 14 epicoeles through valve group 26, valve group 13 links to each other with locked mode cylinder 16 cavity of resorptions, and valve group 12 links to each other with liftout tank 24 epicoeles, cavity of resorption through valve group 23; Low pressure vane pump in large discharge capacity 3 links to each other with valve group 12, valve group 18, and valve group 12 pipeline that links to each other with valve group 18 is equipped with proportional pressure control valve 7, and valve group 18 links to each other with cavity filling jar 19 epicoeles, cavity of resorption; The manual variable pump 4 of low discharge links to each other with locked mode cylinder 16 epicoeles, and locked mode cylinder 16 epicoeles link to each other with prefill valve 17, and pump 4 is used for the slide block pressurize, at fuel-displaced pipeline proportional pressure control valve 6 is housed; Low discharge low voltage control pump 5 is through valve group 22 control prefill valves 17, and the elevating mechanism of connection hydraulic press guide rail; Slide block 15 is equipped with stroke digital display controller 10, and cavity filling jar 19 is equipped with stroke digital display controller 11, and liftout tank 24 is equipped with travel switch 25; Valve group 13 pipeline that links to each other with valve group 26 is equipped with pressure transmitter 8, and cavity filling jar 19 epicoele pipelines are equipped with pressure transmitter 9; Valve group, journey controller, pressure transmitter are connected with microprocessor, and microprocessor is furnished with touch-screen, realize being provided with and control by touch-screen.
System of hydraulic pressure controlling for fast ocking die of semisolid forming hydraulic pressure machine can be finished following action in a semi-automatic technique of hydraulic press: slide block is descending fast, and---it is descending that slide block slows down, and---------cavity filling jar is descending fast, and---cavity filling jar slows down descending and pressurizes, and---cavity filling jar is held the pressurization that continues, and------the cavity filling jar backhaul stops, and---------the slide block backhaul stops, and---liftout tank ejects, and---liftout tank ejects and stops and---liftout tank is return---liftout tank of delaying time is return and stopped in the slide block backhaul in the slide block pressure release in cavity filling jar pressure release backhaul in the slide block pressurize in slide block pressurization.
1. slide block is descending fast
Actuating motor M1-M5 drives 5 runnings of pump 1-pump, pump 1, pump 2 oil enter two quick cylinder 14-1,14-2 driving slide blocks 15, locked mode cylinder 16-1,16-2 through valve group 12, valve group 13, valve group 26 and descend fast, prefill valve 17-1,17-2 open under the self-priming state, to locked mode cylinder 16-1,16-2 epicoele A repairing, locked mode cylinder cavity of resorption B fluid is quick lowering valve oil sump tank in valve group 13, and this moment, slide block was descending fast.
2. slide block slows down descending
When slide block 15 comes downwards to certain position, stroke digital display device 10 senders, valve group 13 fast valves down are closed, and the oil extraction of locked mode cylinder 16-1,16-2 cavity of resorption B oil is opened supporting valve oil sump tank through valve group 13, and slide block slows down descending.
3. slide block pressurization
Behind slide block 15 descending contact moulds, locked mode cylinder 16-1,16-2 epicoele A begin to boost, after pressure rises to the pressure BP1.1 of pressure transmitter 8 settings, and sender, slide block pressurization this moment.
4. slide block pressurize
Sender after the pressure of locked mode cylinder 16-1,16-2 epicoele A rises to pressure transmitter 8 setting pressure BP1.2, only pressurize pump 4 is to locked mode cylinder 16-1,16-2 epicoele A fuel feeding.Slide block pressurize this moment.
5. cavity filling jar is descending fast
When pressure BP1.2 sender that pressure transmitter 8 is set, pump 1, pump 2, pump 3 oil converge through valve group 12, valve group 18 and enter cavity filling jar 19 epicoele A together, and cavity filling jar 19 cavity of resorption B oil are through valve group 18 fast valve oil sump tanks down, and this moment, cavity filling jar 19 was descending fast.
6. cavity filling jar slows down descending and pressurization
When cavity filling jar 19 comes downwards to certain position, stroke digital display device 11 senders, only pump 2 is to cavity filling jar 19 epicoele fuel feeding, and cavity filling jar cavity of resorption B oil is through valve 20 oil sump tanks, and cavity filling jar 19 is done to slow down descending, begins to boost after touching workpiece.
7. cavity filling jar persistent pressure
Sender after the pressure of cavity filling jar 19 epicoele A rises to the pressure BP2 that pressure transmitter 9 is provided with.Time-delay relay trigger (delay time is adjustable), cavity filling jar 19 persistent pressures at this moment.
8. cavity filling jar pressure release backhaul
When time-delay relay time-delay when time is up, pressure release time-delay relay trigger, pump 1 oil enters cavity filling jar 19 cavity of resorption B through valve group 12, valve group 18, cavity filling jar 19 epicoele A oil are through valve 21 oil sump tanks.Cavity filling jar 19 pressure release backhauls this moment.
9. the cavity filling jar backhaul stops
When cavity filling jar 19 backhauls during to certain position, stroke digital display device 11 senders, pump 1 idle loop.The cavity filling jar backhaul stops.
10. slide block pressure release
Stroke digital display 10 senders, pump 5 oil through valve group 22 with prefill valve 17-1,17-2 in feather valve open, locked mode cylinder 16-1,16-2 epicoele A oil is by prefill valve 17-1,17-2 oil sump tank.Slide block pressure release this moment.Simultaneously, pressure release time-delay relay trigger.
11. slide block backhaul
When the pressure release time-delay relay sender when time is up of delaying time, pump 1, pump 2 oil enter locked mode cylinder 16-1,16-2 cavity of resorption B through valve group 12, valve group 13, pump 5 through valve group 22 with prefill valve 17-1,17-2 main valve open.Locked mode cylinder 16-1,16-2 epicoele A oil are through prefill valve 17-1,17-2 oil sump tank, slide block backhaul.
12. the slide block backhaul stops
When slide block 15 backhauls during, stroke digital display 10 senders to certain position, the pump idle loop, the slide block backhaul stops.
13. liftout tank ejection stroke digital display 10 senders, pump 1 oil enters liftout tank 24 A chambeies through valve group 23, and liftout tank 24 ejects.
14. liftout tank ejects and stops and delaying time
When liftout tank 24 sender during, pump idle loop, time-delay relay trigger to travel switch 25-1 position.
15. liftout tank is return
When time-delay relay when time is up, pump 1 oil enters liftout tank 24 B chambeies through valve group 23, liftout tank 24 is return.
16. returning, liftout tank stops
When liftout tank 24 was retracted into travel switch 25-2 position, liftout tank 24 was return and is stopped.The pump idle loop.
So far, whole semi-automatic technological action finishes.
Claims (7)
1, the quick locked mode hydraulic control system of a kind of semisolid forming hydraulic press, constitute by oil pump, magnetic valve, oil circuit and microprocessor, it is characterized in that: proportioning pump (1,2) links to each other with valve group (12), valve group (12) links to each other with valve group (13), valve group (18), valve group (13) links to each other with locked mode cylinder (16) epicoele, quick cylinder (14) epicoele through valve group (26), valve group (13) links to each other with locked mode cylinder (16) cavity of resorption, and valve group (12) links to each other with liftout tank (24) epicoele, cavity of resorption through valve group (23); Pump (3) links to each other with valve group (12), valve group (18), and valve group (18) links to each other with cavity filling jar (19) epicoele, cavity of resorption; Pump (4) links to each other with locked mode cylinder (16) epicoele, and locked mode cylinder (16) epicoele links to each other with prefill valve (17); Pump (5) is through valve group (22) control prefill valve (17); Slide block (15) is equipped with journey controller (10), and cavity filling jar (19) is equipped with journey controller (11), and liftout tank (24) is equipped with travel switch (25); Valve group (13) pipeline that links to each other with valve group (26) is equipped with pressure transmitter (8), and cavity filling jar (19) epicoele pipeline is equipped with pressure transmitter (9); Valve group, journey controller, pressure frequency converter are connected with microprocessor.
2, the quick locked mode hydraulic control system of semisolid forming hydraulic press according to claim 1 is characterized in that: valve group (12) pipeline that links to each other with valve group (18) is equipped with proportional pressure control valve (7).
3, the quick locked mode hydraulic control system of semisolid forming hydraulic press according to claim 1 is characterized in that: the fuel-displaced pipeline of pump (4) is equipped with proportional pressure control valve (6).
4, the quick locked mode hydraulic control system of semisolid forming hydraulic press according to claim 1 is characterized in that: pump (3) is a vane pump.
5, the quick locked mode hydraulic control system of semisolid forming hydraulic press according to claim 1 is characterized in that: ram travel controller (10), cavity filling jar journey controller (11) are stroke setting, demonstration and signal transmitter.
6, the quick locked mode hydraulic control system of semisolid forming hydraulic press according to claim 1 is characterized in that: pump (5) connects the elevating mechanism of hydraulic press guide rail through valve group (22).
7, the quick locked mode hydraulic control system of semisolid forming hydraulic press according to claim 1, it is characterized in that: microprocessor is furnished with touch-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100200818A CN1330443C (en) | 2004-07-23 | 2004-07-23 | System of hydraulic pressure controlling for fast ocking die of semisolid forming hydraulic pressure machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100200818A CN1330443C (en) | 2004-07-23 | 2004-07-23 | System of hydraulic pressure controlling for fast ocking die of semisolid forming hydraulic pressure machine |
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| Publication Number | Publication Date |
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| CN1724191A true CN1724191A (en) | 2006-01-25 |
| CN1330443C CN1330443C (en) | 2007-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100200818A Expired - Fee Related CN1330443C (en) | 2004-07-23 | 2004-07-23 | System of hydraulic pressure controlling for fast ocking die of semisolid forming hydraulic pressure machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794381A (en) * | 2012-08-01 | 2012-11-28 | 南通华东油压科技有限公司 | Fast pressure release and return device of multi-station die forging hydraulic press |
| CN103557203A (en) * | 2013-11-01 | 2014-02-05 | 山东科技大学 | Pressure and time accumulative relay |
| CN104073658A (en) * | 2013-03-29 | 2014-10-01 | 宁夏嘉翔自控技术有限公司 | Electrical control system for rough magnesium hydraulic removal machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6758211B2 (en) * | 2017-02-03 | 2020-09-23 | アズビル株式会社 | Manipulator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2065543U (en) * | 1989-08-14 | 1990-11-14 | 顺德县塑料通用机械企业集团公司 | Injection moulding mahcine with two moving mould |
| CN2238133Y (en) * | 1995-12-06 | 1996-10-23 | 徐维贵 | Gate type ram hydraulic press |
| CN2313734Y (en) * | 1997-12-04 | 1999-04-14 | 郑学渊 | Hydraulic commission of injector with rotary table |
| CN2455457Y (en) * | 2000-12-30 | 2001-10-24 | 亿利达机器(深圳)有限公司 | Hydraulic mould locking device with liquid filling oil cylinder |
| CN2461740Y (en) * | 2001-02-01 | 2001-11-28 | 姚文俊 | Bricks, tile former hydraulic mechanism |
| CN2552677Y (en) * | 2002-06-20 | 2003-05-28 | 力劲机械（深圳）有限公司 | Direct pressure mode-locking device for injection machine |
| CN2623439Y (en) * | 2003-02-26 | 2004-07-07 | 上海银杏实业有限公司 | Mode locking mechanism of four-jar two-board differential fast moving mode full hydraulic pressure plastic jetting machine |
-
2004
- 2004-07-23 CN CNB2004100200818A patent/CN1330443C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794381A (en) * | 2012-08-01 | 2012-11-28 | 南通华东油压科技有限公司 | Fast pressure release and return device of multi-station die forging hydraulic press |
| CN104073658A (en) * | 2013-03-29 | 2014-10-01 | 宁夏嘉翔自控技术有限公司 | Electrical control system for rough magnesium hydraulic removal machine |
| CN103557203A (en) * | 2013-11-01 | 2014-02-05 | 山东科技大学 | Pressure and time accumulative relay |
| CN103557203B (en) * | 2013-11-01 | 2015-05-13 | 山东科技大学 | Pressure and time accumulative relay |
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| CN1330443C (en) | 2007-08-08 |
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