CN106903284A - Response charging device and its control method high of large-scale high speed hydraulic press - Google Patents

Response charging device and its control method high of large-scale high speed hydraulic press Download PDF

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Publication number
CN106903284A
CN106903284A CN201710161083.6A CN201710161083A CN106903284A CN 106903284 A CN106903284 A CN 106903284A CN 201710161083 A CN201710161083 A CN 201710161083A CN 106903284 A CN106903284 A CN 106903284A
Authority
CN
China
Prior art keywords
hydraulic press
high speed
speed hydraulic
quick
oil cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710161083.6A
Other languages
Chinese (zh)
Inventor
凌家友
汪义高
李波
熊小军
朱家洪
马光宪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING JIANGDONG MACHINE Co Ltd
Original Assignee
CHONGQING JIANGDONG MACHINE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHONGQING JIANGDONG MACHINE Co Ltd filed Critical CHONGQING JIANGDONG MACHINE Co Ltd
Priority to CN201710161083.6A priority Critical patent/CN106903284A/en
Publication of CN106903284A publication Critical patent/CN106903284A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/32Controlling equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/2015Means for forcing the molten metal into the die
    • B22D17/2023Nozzles or shot sleeves

Abstract

The invention discloses response charging device and its control method high of a kind of large-scale high speed hydraulic press, the device includes main pressurization oil cylinder, the main pressurization oil cylinder afterbody is provided with liquid-filled tank, and there are several active control type replenishing valves being directly mounted on the main pressurization oil cylinder in the liquid-filled tank, the control medium inlet of the active control type replenishing valve and outlet are compiled in total feed tube, total liquid back pipe, and total feed tube connection constant pressure oil source, total liquid back pipe connection oil return box, a proportional direction valve is provided with total feed tube, total liquid back pipe.Passing ratio direction valve carries out curve Flexible Control to realize the quick shock-free unlatching of replenishing valve and closing, meets the main quick topping up of pressurization oil cylinder when large-scale high speed hydraulic press walking beam quickly runs and without impact quick pressure releasing.The present invention meets the main quick topping up of pressurization oil cylinder when large-scale high speed hydraulic press walking beam quickly runs and without impact quick pressure releasing, and fast response time, production efficiency is high.

Description

Response charging device and its control method high of large-scale high speed hydraulic press
Technical field
The present invention relates to response charging device and its control method high of a kind of large-scale high speed hydraulic press, belong to hydraulic press skill Art field.
Background technology
Large-scale high speed hydraulic press walking beam idle running speed reaches 800mm~1500mm/s, in walking beam idle running running, Main pressurized cylinder topping up rate request quickly, need fliud flushing valve quickly to close when entering and run into work while the quick idle running of walking beam is run Close, to prevent the pressure source for entering main pressurized cylinder from will not at a high speed not closed because of replenishing valve from the direct oil return of replenishing valve, and then Causing hydraulic press cannot realize that quick work is entered and Quick-pressing, so as to occur that the interval narrower die carter of forming temperature cannot be adapted to Skill.It is another to need quick pressure releasing for improve production efficiency, before press walking beam return and efficiently control pressure release impact.
Traditional charging device cannot be solved the above problems due to response speed deficiency, therefore present invention seek to address that above-mentioned ask Topic.
The content of the invention
For above-mentioned weak point of the prior art, the present invention is intended to provide a kind of response high of large-scale high speed hydraulic press Charging device and its control method, meet the main quick topping up of pressurization oil cylinder when large-scale high speed hydraulic press walking beam quickly runs and Without impact quick pressure releasing, fast response time, production efficiency is high.
To achieve these goals, technical scheme:A kind of response charging device high of large-scale high speed hydraulic press, It includes main pressurization oil cylinder, and the main pressurization oil cylinder afterbody is provided with liquid-filled tank, and has several being mounted directly in the liquid-filled tank Active control type replenishing valve on the main pressurization oil cylinder, the control medium inlet of the active control type replenishing valve and outlet are equal It is compiled in total feed tube, total liquid back pipe, and total feed tube connection constant pressure oil source, total liquid back pipe connection oil return box, always enter at this A proportional direction valve is provided with liquid pipe, total liquid back pipe.
Further, the active control type replenishing valve uses the small latus rectum replenishing valve of active control type.
Further, the active control type replenishing valve quantity is at least three.
Further, the proportional direction valve is 3-position 4-way proportional direction valve.
Further, it is provided with air filter in the liquid-filled tank.
The present invention proposes the control method of above-mentioned response charging device high simultaneously, it is intended to quickly and stably complete main pressurization The topping up of oil cylinder, pressure release.Its technical scheme:The control method of the response charging device high of large-scale high speed hydraulic press, specific control It is as follows:
When large-scale high speed hydraulic press idle running is run, while the main pressurization oil cylinder is internally formed vacuum, the ratio The several active control type replenishing valves of direction valve curve Flexible Control are quick to be opened without impact, the hydraulic oil in the liquid-filled tank Degree of filling a vacuum in the main pressurization oil cylinder is entered to by several active control type replenishing valves;
Large-scale high speed hydraulic press is quickly run when entering to pressurize into work by idle running, the proportional direction valve curve Flexible Control Several active control type replenishing valves are quick to close without impact, and the principal pressure oil of large-scale high speed hydraulic press enters the main pressurization Oil cylinder realizes Quick-pressing;
When large-scale high speed hydraulic press enters Quick return after being terminated by pressurizeing, the proportional direction valve curve Flexible Control number The individual active control type replenishing valve is quick to be opened without impact, main pressurization oil cylinder quick pressure relief and the quick oil return.
Beneficial effects of the present invention:1st, solve large-scale high speed hydraulic press walking beam idle running speed of service 800mm~ The quick topping up problem of main pressurization oil cylinder during 1500mm/s, meets hydraulic press and quickly starts and the quick demand run;
2nd, solve the problems, such as the operation of large-scale high speed hydraulic press walking beam idle running into work enter when replenishing valve quick closedown, with Preventing the pressure oil for entering main pressurization oil cylinder will not at a high speed not close from the liquid caused by the direct oil return of the replenishing valve because of replenishing valve Press cannot realize that quick work enters pressurization, so as to occur that the interval narrower extrusion process of workpiece material forming temperature cannot be adapted to;
3rd, quick pressure releasing before large-scale high speed hydraulic press walking beam return is solved, and efficiently controls pressure release shock problem.
In sum, the present invention meets the main quick topping up of pressurization oil cylinder when large-scale high speed hydraulic press walking beam quickly runs And without impact quick pressure releasing, fast response time, production efficiency is high.
Brief description of the drawings
Fig. 1 is structure chart of the invention.
Specific embodiment
The present invention is further described with reference to specific embodiment and accompanying drawing.
A kind of response charging device high of large-scale high speed hydraulic press as shown in Figure 1, it includes main pressurization oil cylinder 10, and the master adds The afterbody of compressing cylinder 10 is provided with liquid-filled tank 11, and has several being directly mounted on main pressurization oil cylinder 10 in the liquid-filled tank 11 Active control type replenishing valve 12, the control medium inlet of the active control type replenishing valve 12 and outlet are compiled in total feed tube, total In liquid back pipe, and total feed tube connection constant pressure oil source, total liquid back pipe connects oil return box, on total feed tube, total liquid back pipe It is provided with a proportional direction valve 13.
Liquid-filled tank 11 in the present invention is directly mounted at the afterbody of main pressurization oil cylinder 10, mechanically or other are affixed Such as welding is affixed with main pressurization oil cylinder 10 by liquid-filled tank 11, and ensures non-oil leakage phenomenon between it, is set in the bottom of liquid-filled tank 11 It is equipped with towards outside repairing mouthful.Meanwhile, active control type replenishing valve 12 is also directly mounted on main pressurization oil cylinder 10, is eliminated In each road link pipeline connection so that the oil suction of active control type replenishing valve 12 and oil return Distance Shortened, so oil suction and return Oily resistance reduces, and whole charging device response speed is faster.
Active control type replenishing valve 12 uses the small latus rectum replenishing valve of active control type, and its quantity is at least three, this reality Apply in example, the quantity of active control type replenishing valve 12 is three, can as one sees fit be increased master in practical application as the case may be The quantity of dynamic control type replenishing valve 12.Because the main valve plug motional inertia of the small latus rectum replenishing valve of active control type is small, than traditional topping up The single big orifice replenishing valve response speed of device is faster.Certainly in the case of cost is not considered, active control type replenishing valve 12 are replaced using multiple big orifice proportional cartridge valves, are equally capable of achieving the quick response topping up of hydraulic press.
The closing of active control type replenishing valve 12 can be with active control with unlatching so that it closes and open response speed Improve.Proportional direction valve 13 is 3-position 4-way proportional direction valve in this example, and active control can be reduced by its curve Flexible Control Oil shock when type replenishing valve 12 is opened and closed.
In addition, being provided with air filter 14 in liquid-filled tank 11, the quantity of air filter 14 is two in Fig. 1.
The present invention discloses the control method of the response charging device high of the large-scale high speed hydraulic press, its specific control It is as follows:
When large-scale high speed hydraulic press idle running is run, because idle running speed 800mm~1500mm/s is by walking beam gravity or small Type speedup oil cylinder speedup mode realizes that main pressurization oil cylinder 10 will be formed quickly very in quick running is followed inside oil cylinder Reciprocal of duty cycle, while the main pressurization oil cylinder 10 is internally formed vacuum, the several active controls of the curve Flexible Control of proportional direction valve 13 Type replenishing valve 12 processed is quick to be opened without impact, and the hydraulic oil in liquid-filled tank 11 is entered to by several active control type replenishing valves 12 Degree of filling a vacuum in main pressurization oil cylinder 10, so as to realize that hydraulic press quickly starts and quick control operation;
Large-scale high speed hydraulic press is quickly run when entering to pressurize into work by idle running, the curve Flexible Control number of proportional direction valve 13 Individual active control type replenishing valve 12 is quick to close without impact, and the principal pressure oil of large-scale high speed hydraulic press is real into main pressurization oil cylinder 10 Existing Quick-pressing;
When large-scale high speed hydraulic press enters Quick return after being terminated by pressurizeing, the curve Flexible Control of proportional direction valve 13 is several Active control type replenishing valve 12 is quick to be opened without impact, main the pressurization quick pressure releasing of oil cylinder 10 and quick oil return, in return power source Under effect, hydraulic press Quick return.
For the curve flexible control method of proportional direction valve 13, itself it is already belonging in prior art generally acknowledged in row, herein Cumbersome analysis is not carried out to its specific Flexible Control principle.
The technical scheme for being provided the embodiment of the present invention above is described in detail, specific case used herein Principle and implementation method to the embodiment of the present invention are set forth, and the explanation of above example is only applicable to help and understands this The principle of inventive embodiments;Simultaneously for those of ordinary skill in the art, according to the embodiment of the present invention, in specific embodiment party Be will change in formula and range of application, in sum, this specification content should not be construed as limiting the invention.

Claims (6)

1. a kind of response charging device high of large-scale high speed hydraulic press, including main pressurization oil cylinder (10), it is characterised in that:The master Pressurization oil cylinder (10) afterbody is provided with liquid-filled tank (11), and has in the liquid-filled tank (11) and several are directly mounted at the master and add Active control type replenishing valve (12) on compressing cylinder (10), the control medium inlet of the active control type replenishing valve (12) and outlet It is compiled in total feed tube, total liquid back pipe, and total feed tube connection constant pressure oil source, total liquid back pipe connects oil return box, total at this A proportional direction valve (13) is provided with feed tube, total liquid back pipe.
2. the high of large-scale high speed hydraulic press responds charging device according to claim 1, it is characterised in that:The active control Type replenishing valve (12) uses the small latus rectum replenishing valve of active control type.
3. the high of large-scale high speed hydraulic press according to claim 1 or claim 2 responds charging device, it is characterised in that:The active Control type replenishing valve (12) quantity is at least three.
4. the high of large-scale high speed hydraulic press responds charging device according to claim 1, it is characterised in that:The proportion directional Valve (13) is 3-position 4-way proportional direction valve.
5. the high of large-scale high speed hydraulic press responds charging device according to claim 1, it is characterised in that:The liquid-filled tank (11) air filter (14) is provided with.
6. according to the control method for responding charging device high of any large-scale high speed hydraulic press of claim 1-5, its feature It is:
When large-scale high speed hydraulic press idle running is run, while main pressurization oil cylinder (10) is internally formed vacuum, the ratio The several active control type replenishing valves (12) of direction valve (13) curve Flexible Control are quick to open without impact, the liquid-filled tank (11) hydraulic oil in is entered to by several active control type replenishing valves (12) to be filled up in main pressurization oil cylinder (10) Vacuum;
Large-scale high speed hydraulic press is quickly run when entering to pressurize into work by idle running, proportional direction valve (13) the curve Flexible Control Several active control type replenishing valves (12) are quick to close without impact, and the principal pressure oil of large-scale high speed hydraulic press enters the master Quick-pressing is realized in pressurization oil cylinder (10);
When large-scale high speed hydraulic press enters Quick return after being terminated by pressurizeing, proportional direction valve (13) the curve Flexible Control number The individual active control type replenishing valve (12) is quickly opened without impact, main pressurize oil cylinder (10) quick pressure releasing and quick time Oil.
CN201710161083.6A 2017-03-17 2017-03-17 Response charging device and its control method high of large-scale high speed hydraulic press Pending CN106903284A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710161083.6A CN106903284A (en) 2017-03-17 2017-03-17 Response charging device and its control method high of large-scale high speed hydraulic press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710161083.6A CN106903284A (en) 2017-03-17 2017-03-17 Response charging device and its control method high of large-scale high speed hydraulic press

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0833966A (en) * 1994-07-21 1996-02-06 Toyota Motor Corp Die casting machine
CN202088514U (en) * 2011-04-13 2011-12-28 重庆大学 Hydraulic circuit of large-size hydraulic machine comprising novel supercharger
CN202862614U (en) * 2012-09-11 2013-04-10 天津市天锻压力机有限公司 Hydraulic machine capable of relieving pressure quick and saving energy
CN204175973U (en) * 2014-09-24 2015-02-25 广东华液动力科技有限公司 Liquid-filling valve and liquid-filling valve system
CN104647800A (en) * 2015-02-04 2015-05-27 中精集团有限公司 High-and-low-pressure conversion function optimizing hydraulic system for full-automatic hydraulic fine-blanking press
CN105221497A (en) * 2015-10-27 2016-01-06 天津市天锻压力机有限公司 High speed pre-shaping hydraulic press hydraulic control system
CN206662233U (en) * 2017-03-17 2017-11-24 重庆江东机械有限责任公司 The high response charging device of large-scale high speed hydraulic press

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0833966A (en) * 1994-07-21 1996-02-06 Toyota Motor Corp Die casting machine
CN202088514U (en) * 2011-04-13 2011-12-28 重庆大学 Hydraulic circuit of large-size hydraulic machine comprising novel supercharger
CN202862614U (en) * 2012-09-11 2013-04-10 天津市天锻压力机有限公司 Hydraulic machine capable of relieving pressure quick and saving energy
CN204175973U (en) * 2014-09-24 2015-02-25 广东华液动力科技有限公司 Liquid-filling valve and liquid-filling valve system
CN104647800A (en) * 2015-02-04 2015-05-27 中精集团有限公司 High-and-low-pressure conversion function optimizing hydraulic system for full-automatic hydraulic fine-blanking press
CN105221497A (en) * 2015-10-27 2016-01-06 天津市天锻压力机有限公司 High speed pre-shaping hydraulic press hydraulic control system
CN206662233U (en) * 2017-03-17 2017-11-24 重庆江东机械有限责任公司 The high response charging device of large-scale high speed hydraulic press

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
罗先兵等: "基于电液比例控制系统的粉末成型液压机液压系统设计", 《液压与气动》 *

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Application publication date: 20170630

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