CN105298945A - Hydraulic system of quick pressing type hydraulic press - Google Patents
Hydraulic system of quick pressing type hydraulic press Download PDFInfo
- Publication number
- CN105298945A CN105298945A CN201510839876.XA CN201510839876A CN105298945A CN 105298945 A CN105298945 A CN 105298945A CN 201510839876 A CN201510839876 A CN 201510839876A CN 105298945 A CN105298945 A CN 105298945A
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- 239000002828 fuel tank Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 abstract 3
- 238000007599 discharging Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 29
- 239000010720 hydraulic oil Substances 0.000 description 4
- 239000010727 cylinder oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Control Of Presses (AREA)
- Fluid-Pressure Circuits (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to a hydraulic system of a quick pressing type hydraulic press. The hydraulic system comprises a main oil cylinder, quick cylinders, a servo motor pump set and an energy storing device, wherein the lower end of the main oil cylinder is connected to the upper end of the middle of a slide block, and the quick cylinders are mounted at the upper ends of two sides of the slide block; the upper end of the main oil cylinder is connected to a downward-pressing oil feeding pipeline; the upper end of each quick cylinder is connected with a quick oil discharging channel while the lower end of each quick cylinder is connected with a returning oil channel; the quick oil discharging channel communicates with the downward-pressing oil feeding pipeline; a liquid filling valve is mounted at the upper end of the main oil cylinder, and the upper end of the liquid filling valve is connected to an oil tank; the lower end of a reversing valve is mounted at the outlet end of the servo motor pump set, and the upper end of the reversing valve is connected to the downward-pressing oil feeding pipeline and the returning oil channel; the energy storing device is connected to the outlet end of the servo motor pump set through an auxiliary pipeline; a proportional valve is mounted on the auxiliary pipeline, and the auxiliary pipeline is connected to the liquid filling valve through a control pipeline; a first solenoid valve is mounted on the control pipeline. The system has the advantages that the quick pressing is achieved, overhigh installed power is not configured, the control precision is high, the flexible starting, stopping and pressure releasing control functions are achieved, and the quick running speed of the slide block is increased.
Description
Technical field
The present invention relates to hydraulic system of hydraulic machine field, be specifically related to a kind of pressing hydraulic machine hydraulic system fast.
Background technique
Current hydraulic press adopts motor to drive oil pump to suppress at a slow speed, the press needing pressing speed fast is then needed to configure very high installed power, the press of this similar technique often only just uses peak output being pressed into the last matched moulds stage, and therefore plant capacity efficiency is lower.Common press still uses ordinary three-phase synchronous as power source, although this motor working stability, life-span is longer, but its efficiency is lower, and when idle loop also loss power, therefore do not meet the requirement of current energy-saving and emission-reduction, therefore adopt driven by servomotor to be a current main trend.Common press system mostly is digital output modul, there is larger response time delay and switching shock, adopts servo motor driven oil pump then to there is not two problems above.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of novel quick pressing hydraulic machine hydraulic system, quick compacting can be realized, realize high-precision pressure, position-force control, flexible start and stop, pressure release controlling functions can be realized simultaneously, slide block can be driven to move up and down fast.
Technological scheme of the present invention is as follows:
A kind of pressing hydraulic machine hydraulic system fast, it comprises master cylinder, fast cylinder, actuating motor pump group, accumulator, solenoid valve, selector valve, slide block, upper end in the middle of the connection sliding block of master cylinder lower end, fast cylinder is equipped with respectively in upper end, slide block both sides, the connection of master cylinder upper end presses down in-line, fast cylinder upper end connects fast lower oil circuit, fast cylinder lower end connects backhaul oil circuit, descend oil circuit soon and press down in-line to be connected, liquid-filling valve is equipped with in master cylinder upper end, liquid-filling valve upper end connects fuel tank, actuating motor pump group outlet end is equipped with selector valve lower end, the connection of selector valve upper end presses down in-line and backhaul oil circuit, accumulator connects actuating motor pump group outlet end by auxiliary piping, auxiliary piping is equipped with Proportional valve, auxiliary piping connects liquid-filling valve by pilot line, the first solenoid valve pilot line is equipped with.
Oiling valve is equipped with in described pressing down on in-line.
Described backhaul oil circuit is equipped with sutaining valve.
Between described actuating motor pump group and auxiliary piping, one-way valve is housed, actuating motor pump group outlet end is equipped with safety valve, and actuating motor pump group outlet end is connected by branch line and branch line is equipped with the second solenoid valve.
Described backhaul oil circuit and press down between in-line differential valve is housed, differential valve connects the 3rd solenoid valve by oil circuit control, and the 3rd solenoid valve connects oiling valve by oil circuit control, and the 3rd solenoid valve connects backhaul oil circuit by oil circuit control.
The advantage that the present invention has and practical effect are: can either realize quick compacting, and can not configure excessive installed power again, control accuracy is high, can realize flexible start and stop, pressure release controlling functions simultaneously, promote the quick motion speed of slide block.Native system has obvious energy-saving and noise-reducing effect, enhances productivity, and ensures Product Precision and quality.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Embodiment
With reference to accompanying drawing 1, a kind of pressing hydraulic machine hydraulic system fast, it comprises master cylinder 1, fast cylinder 2, actuating motor pump group 3, accumulator 4, selector valve 5, slide block 6, the middle upper end of connection sliding block 6, master cylinder 1 lower end, upper end, slide block 6 both sides is equipped with fast cylinder 2 respectively, the connection of master cylinder 1 upper end presses down in-line 7, fast cylinder 2 upper end connects fast lower oil circuit 8, fast cylinder 2 lower end connects backhaul oil circuit 9, descend oil circuit 8 soon and press down in-line 7 to be connected, liquid-filling valve 10 is equipped with in master cylinder 1 upper end, liquid-filling valve 10 upper end connects fuel tank 21, actuating motor pump group 3 outlet end is equipped with selector valve 5 lower end, the connection of selector valve 5 upper end presses down in-line 7 and backhaul oil circuit 9, accumulator 4 connects actuating motor pump group 3 outlet end by auxiliary piping 11, Proportional valve 12 auxiliary piping 11 is equipped with, auxiliary piping 11 connects liquid-filling valve 10 by pilot line 13, the first solenoid valve 14 pilot line 13 is equipped with.Oiling valve 15 is equipped with in described pressing down on in-line 7.Described backhaul oil circuit 9 is equipped with sutaining valve 16.Between described actuating motor pump group 3 and auxiliary piping 11, one-way valve 17 is housed, actuating motor pump group 3 outlet end is equipped with safety valve 18, and actuating motor pump group 3 outlet end is connected by branch line and branch line is equipped with the second solenoid valve 19.Described backhaul oil circuit and press down between in-line differential valve 22 is housed, differential valve 22 connects the 3rd solenoid valve 20 by oil circuit control, 3rd solenoid valve 20 connects oiling valve the 15, three solenoid valve 20 by oil circuit control and connects backhaul oil circuit 9 by oil circuit control.Actuating motor pump group 3 entrance point connects fuel tank 21, and safety valve 18 outlet end connects fuel tank 21.Slide block 6 side hydraulic press frame is equipped with displacement transducer 23.
When the present invention uses, when hydraulic press needs quick compacted products, selector valve YA1, YA3 action, actuating motor pump group hydraulic oil by selector valve through oiling valve, enter into fast cylinder, fast cylinder cavity of resorption oil extraction simultaneously enters into fast cylinder epicoele through differential valve 20 and realizes quick differential descending, when starting compacted products, YA3 power-off, Proportional valve 12 action, the hydraulic oil of accumulator is discharged, the flow pressure auxiliary servo motor pump group oil-feed of release, accelerate oil-feed speed, thus realize quick compacted products, the oil-feed of fast cylinder upper end, lower end oil return, sutaining valve action is opened, oil return was entered selector valve through backhaul oil circuit again by sutaining valve and was entered fuel tank, close accumulator Proportional valve in advance, opens solenoid valve YA5 when finally realizing matched moulds, realize the closed loop control of master cylinder high-precision pressure, when hydraulic press needs backhaul, selector valve YA2 action, actuating motor pump group hydraulic oil by the one-way valve of selector valve through sutaining valve side, the lower end of fast cylinder is transported to, master cylinder and fast cylinder oil return simultaneously, the oil return of fast cylinder upper end through return line, oil return enters fuel tank through too fast lower pipeline and selector valve, during master cylinder oil return, the first solenoid valve YA4 action control oil circuit opens equalizer valve, then the hydraulic oil in master cylinder directly enters in fuel tank, when hydraulic press stops, actuating motor pump group carries out pressurising to accumulator, and after energy storage tank is full of pressure, Proportional valve cuts out, and accumulator pressurize is in order to using next time.
Claims (5)
1. a quick pressing hydraulic machine hydraulic system, it is characterized in that it comprises master cylinder, fast cylinder, actuating motor pump group, accumulator, solenoid valve, selector valve, slide block, upper end in the middle of the connection sliding block of master cylinder lower end, fast cylinder is equipped with respectively in upper end, slide block both sides, the connection of master cylinder upper end presses down in-line, fast cylinder upper end connects fast lower oil circuit, fast cylinder lower end connects backhaul oil circuit, descend oil circuit soon and press down in-line to be connected, liquid-filling valve is equipped with in master cylinder upper end, liquid-filling valve upper end connects fuel tank, actuating motor pump group outlet end is equipped with selector valve lower end, the connection of selector valve upper end presses down in-line and backhaul oil circuit, accumulator connects actuating motor pump group outlet end by auxiliary piping, auxiliary piping is equipped with Proportional valve, auxiliary piping connects liquid-filling valve by pilot line, the first solenoid valve pilot line is equipped with.
2. quick pressing hydraulic machine hydraulic system according to claim 1, is characterized in that oiling valve is equipped with in described pressing down on in-line.
3. quick pressing hydraulic machine hydraulic system according to claim 1, is characterized in that described backhaul oil circuit is equipped with sutaining valve.
4. quick pressing hydraulic machine hydraulic system according to claim 1, it is characterized in that, between described actuating motor pump group and auxiliary piping, one-way valve is housed, actuating motor pump group outlet end is equipped with safety valve, and actuating motor pump group outlet end is connected by branch line and branch line is equipped with the second solenoid valve.
5. quick pressing hydraulic machine hydraulic system according to claim 1, it is characterized in that described backhaul oil circuit and press down between in-line differential valve is housed, differential valve connects the 3rd solenoid valve by oil circuit control, 3rd solenoid valve connects oiling valve by oil circuit control, and the 3rd solenoid valve connects backhaul oil circuit by oil circuit control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839876.XA CN105298945B (en) | 2015-11-27 | 2015-11-27 | Quick pressing hydraulic machine hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839876.XA CN105298945B (en) | 2015-11-27 | 2015-11-27 | Quick pressing hydraulic machine hydraulic system |
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| Publication Number | Publication Date |
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| CN105298945A true CN105298945A (en) | 2016-02-03 |
| CN105298945B CN105298945B (en) | 2018-02-27 |
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| CN201510839876.XA Active CN105298945B (en) | 2015-11-27 | 2015-11-27 | Quick pressing hydraulic machine hydraulic system |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598334A (en) * | 2016-02-18 | 2016-05-25 | 南通皋液液压机有限公司 | Hydraulic system for hydraulic machine for forging and pressing elastic materials |
| CN105835392A (en) * | 2016-06-22 | 2016-08-10 | 扬州市工兵机械有限公司 | Stroke regulation built-in precise fast press machine, and oil cylinder and use method thereof |
| CN107524662A (en) * | 2017-10-12 | 2017-12-29 | 南通锻压设备股份有限公司 | A kind of hydraulic press energy regenerating and sliding block weight balancing system |
| CN108343653A (en) * | 2018-03-02 | 2018-07-31 | 佛山市三水粤山装饰实业有限公司 | A kind of hydraulic system of hot pressing furnace |
| CN108687283A (en) * | 2018-03-30 | 2018-10-23 | 天津市天锻压力机有限公司 | A kind of electrohydraulic control system and technological forming method being hot extruded into type hydraulic machine |
| CN108708889A (en) * | 2018-07-23 | 2018-10-26 | 武汉理工大学 | A kind of energy-saving low fast-response mixing control servo-hydraulic machine hydraulic system that shakes |
| CN108953254A (en) * | 2018-09-28 | 2018-12-07 | 南通市腾达锻压机床厂 | Hydraulic system with nitrogen cylinder buffering in Sheet Metal Forming Technology |
| CN109795149A (en) * | 2019-03-04 | 2019-05-24 | 无锡市鹏达海卓智能装备有限公司 | Hydraulic press driven by servo motor pump set |
| CN109795148A (en) * | 2019-03-04 | 2019-05-24 | 无锡市鹏达海卓智能装备有限公司 | The hydraulic system of the hydraulic press of servo motor pump group driving |
| CN111237262A (en) * | 2018-12-26 | 2020-06-05 | 金马工业集团股份有限公司 | Hydraulic system |
| CN112277375A (en) * | 2020-08-27 | 2021-01-29 | 天津市天锻压力机有限公司 | Process forming method of powder forming hydraulic press |
| CN113175448A (en) * | 2021-04-26 | 2021-07-27 | 深圳市科斯腾液压设备有限公司 | Hydraulic device for feeding back output torque of servo motor by utilizing deadweight potential energy |
| CN114183415A (en) * | 2021-12-13 | 2022-03-15 | 杭州越达图谱科技有限公司 | Efficient heavy-load press-fitting machine hydraulic system |
| CN115559954A (en) * | 2022-10-12 | 2023-01-03 | 天津帝广机电设备有限公司 | A hydraulic fast and slow switching system and method for controlling the downward pressure of a hydraulic press slider |
| CN116006524A (en) * | 2022-12-28 | 2023-04-25 | 重庆江东机械有限责任公司 | Hydraulic system and control method of a hot stamping forming press |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598334A (en) * | 2016-02-18 | 2016-05-25 | 南通皋液液压机有限公司 | Hydraulic system for hydraulic machine for forging and pressing elastic materials |
| CN105835392A (en) * | 2016-06-22 | 2016-08-10 | 扬州市工兵机械有限公司 | Stroke regulation built-in precise fast press machine, and oil cylinder and use method thereof |
| CN105835392B (en) * | 2016-06-22 | 2017-10-13 | 扬州市工兵机械有限公司 | A kind of stroke adjustment built-in precise fast pressure machine and its oil cylinder and application method |
| CN107524662A (en) * | 2017-10-12 | 2017-12-29 | 南通锻压设备股份有限公司 | A kind of hydraulic press energy regenerating and sliding block weight balancing system |
| CN107524662B (en) * | 2017-10-12 | 2023-06-23 | 南通锻压设备如皋有限公司 | Hydraulic energy recovery and sliding block gravity balance system |
| CN108343653A (en) * | 2018-03-02 | 2018-07-31 | 佛山市三水粤山装饰实业有限公司 | A kind of hydraulic system of hot pressing furnace |
| CN108343653B (en) * | 2018-03-02 | 2024-01-05 | 广东粤山新材料科技有限公司 | Hydraulic system of hot pressing furnace |
| CN108687283A (en) * | 2018-03-30 | 2018-10-23 | 天津市天锻压力机有限公司 | A kind of electrohydraulic control system and technological forming method being hot extruded into type hydraulic machine |
| CN108687283B (en) * | 2018-03-30 | 2024-04-12 | 天津市天锻压力机有限公司 | Electrohydraulic control system of hot extrusion forming hydraulic machine and process forming method |
| CN108708889B (en) * | 2018-07-23 | 2020-01-14 | 武汉理工大学 | Energy-saving type low-vibration fast-response hybrid control hydraulic press hydraulic system |
| CN108708889A (en) * | 2018-07-23 | 2018-10-26 | 武汉理工大学 | A kind of energy-saving low fast-response mixing control servo-hydraulic machine hydraulic system that shakes |
| CN108953254A (en) * | 2018-09-28 | 2018-12-07 | 南通市腾达锻压机床厂 | Hydraulic system with nitrogen cylinder buffering in Sheet Metal Forming Technology |
| CN111237262A (en) * | 2018-12-26 | 2020-06-05 | 金马工业集团股份有限公司 | Hydraulic system |
| CN109795148A (en) * | 2019-03-04 | 2019-05-24 | 无锡市鹏达海卓智能装备有限公司 | The hydraulic system of the hydraulic press of servo motor pump group driving |
| CN109795149A (en) * | 2019-03-04 | 2019-05-24 | 无锡市鹏达海卓智能装备有限公司 | Hydraulic press driven by servo motor pump set |
| CN109795148B (en) * | 2019-03-04 | 2024-07-30 | 无锡市鹏达海卓智能装备有限公司 | Hydraulic system of hydraulic machine driven by servo motor pump group |
| CN112277375A (en) * | 2020-08-27 | 2021-01-29 | 天津市天锻压力机有限公司 | Process forming method of powder forming hydraulic press |
| CN113175448A (en) * | 2021-04-26 | 2021-07-27 | 深圳市科斯腾液压设备有限公司 | Hydraulic device for feeding back output torque of servo motor by utilizing deadweight potential energy |
| CN114183415A (en) * | 2021-12-13 | 2022-03-15 | 杭州越达图谱科技有限公司 | Efficient heavy-load press-fitting machine hydraulic system |
| CN115559954A (en) * | 2022-10-12 | 2023-01-03 | 天津帝广机电设备有限公司 | A hydraulic fast and slow switching system and method for controlling the downward pressure of a hydraulic press slider |
| CN116006524A (en) * | 2022-12-28 | 2023-04-25 | 重庆江东机械有限责任公司 | Hydraulic system and control method of a hot stamping forming press |
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Effective date of registration: 20180810 Address after: 226503 Jiangsu Nantong Rugao North Road Park North Road (economic and Technological Development Zone Forging Industry Park) Patentee after: Nantong forging equipment Rugao Co., Ltd. Address before: 226500 Jiangsu Nantong Rugao Economic Development Zone Forging Industry Park Patentee before: Nantong Forging Equipment Co., Ltd. |