CN2334567Y - Hydraulic controller for stone material press-cutting shaping machine - Google Patents
Hydraulic controller for stone material press-cutting shaping machine Download PDFInfo
- Publication number
- CN2334567Y CN2334567Y CN 97235174 CN97235174U CN2334567Y CN 2334567 Y CN2334567 Y CN 2334567Y CN 97235174 CN97235174 CN 97235174 CN 97235174 U CN97235174 U CN 97235174U CN 2334567 Y CN2334567 Y CN 2334567Y
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- hydraulic
- hydraulic cylinder
- oil
- valve
- stone material
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- Expired - Fee Related
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model relates to a hydraulic controller for a stone material press-cutting shaping machine. The utility model comprises a hydraulic pump 1, a prime mover 8 which is used for driving the hydraulic pump 1, a reversing valve 4, a hydraulic cylinder 7, an electric contact manometer 6, and an oil tank, wherein, the reversing valve 4 is provided with at least four outlets which are respectively connected with a high pressure chamber of the hydraulic cylinder 7, an oil return chamber of the hydraulic cylinder 7, the oil tank, and the hydraulic pump 1; the reversing valve 4 is an electromagnetic or electrohydraulic reversing valve; the pressure tap of the electric contact manometer 6 is positioned on a pipe passage which is communicated with the high pressure chamber of the hydraulic cylinder 7; the electrical signal output end of the electric contact manometer 6 is connected with the electrically controlled signal input end of the electromagnetic or electrohydraulic reversing valve. The utility model has the advantages of low failure rate, high productive efficiency, accurate and standard reversing, etc.
Description
The utility model relates to a kind of control device of hydraulic drive forcing press, particularly a kind of stone material crush-cutting make-up machine hydraulic control device.
Reversal valve in the hydraulic control device of stone material crush-cutting make-up machine of the prior art is the hand reversal valve, like this, each work step in the crush-cutting working cycles process is by manually operating, because human response speed is slow, can not make timely reaction to each state in the working cycles process, particularly can not be in the state that finishes of pressurization cutting and make timely reaction system, cause the longer duration of system at pressurized state, not only system damages easily, the fault rate height, and production efficiency is low, and labour intensity is big.Simultaneously, commutation situation not in place often appears in hand reversal valve in actual use, like this, because pipeline has some setbacks and will directly cause the instantaneous pressure in the system sharply to increase, impel hydraulic pump and motor load to increase, the fault that oil pipe explosion or hydraulic pump damage takes place easily as power source.
The purpose of this utility model is to overcome weak point of the prior art, can make timely response and auto-action to the pressurization cutting state that finishes and provide a kind of, and system failure rate is low, the stone material crush-cutting make-up machine hydraulic control device that production efficiency is higher.
The purpose of this utility model realizes by following approach.
Stone material crush-cutting make-up machine hydraulic control device, comprise hydraulic pump, drive the prime mover and the reversal valve of hydraulic pump, hydraulic jack and fuel tank, reversal valve has at least four ports, the high pressure chest that connects hydraulic cylinder respectively, the oil back chamber of hydraulic cylinder, fuel tank and hydraulic pump, dynamic model in hydraulic cylinder piston rod and the cylinder barrel one of them and the die forming machine is affixed, another is then pressed admittedly with the make-up machine body, its structural feature is: also comprise a kind of electric contact manometer, its pressure tap is positioned on the pipeline that is communicated with the high pressure chest of hydraulic cylinder, reversal valve or a kind of solenoid directional control valve or a kind of electro-hydraulic reversing valve, the manometric electrical signal of electric contact is connected with the electric control signal input of electromagnetism or electro-hydraulic reversing valve.
Like this, when reaching cutting pressure, workpiece is finished by cutting, and simultaneously, response was sent the signal of telecommunication and given electromagnetism or electro-hydraulic reversing valve when electric contact pressure was taken into account, and made its commutation so that the dynamic model in the mould is repositioned to the state of workpiece loading and unloading.And, because the application of electromagnetism or electro-hydraulic reversing valve has also produced a unexpected effect: there are not commutation problem not in place in electromagnetism or electro-hydraulic reversing valve, like this, the institute that causes owing to commutation is not in place in the prior art possesses a drawback, and is therefore thoroughly eradicated.
The purpose of this utility model can also realize by following approach.
Piston rod and the dynamic model in the die forming machine in the hydraulic cylinder are affixed.
Also comprise a kind of low pressure relief valve, its oil-in is communicated with the oil back chamber of hydraulic cylinder, and its oil return opening then is communicated with fuel tank.
Like this, the system pipeline between reversal valve and the hydraulic cylinder oil back chamber just becomes low pressure line, makes that hydraulic cylinder oil return work (i.e. the corresponding dynamic model return work of institute) is more steady.
Also comprise a kind of high-pressure overflow valve, its oil-in is communicated with the oil-out of hydraulic pump, and its oil return opening then is communicated with fuel tank.
Reversal valve can be a kind of two-position four-way valve.
In sum, the utility model has following advantage compared to existing technology: the state that can finish to the pressurization cutting in the system duty cycle process makes timely response and auto-action event system failure rate is low, and production efficiency height, labour intensity is low, also has a unexpected effect simultaneously, be that reversal valve commutates accurately, puts in place, thoroughly eradicated the disadvantage that causes not in place, system's long service life because reversal valve commutates.
Accompanying drawing is the loop schematic diagram of the utility model most preferred embodiment.
Below we carry out more detailed description to the utility model in conjunction with the accompanying drawings.Most preferred embodiment:
With reference to accompanying drawing, stone material crush-cutting make-up machine hydraulic control device is made up of prime mover 8, hydraulic pump 1, check valve 2, high-pressure overflow valve 3, reversal valve 4, low pressure relief valve 5, electric contact pressure meter 6, hydraulic cylinder and fuel tank etc.Prime mover 8 is a kind of motors, and reversal valve 4 is a kind of two-position four-way solenoid valves, and its four ports are communicated with the high pressure chest (being rodless cavity) of hydraulic cylinder 7, oil back chamber (being rod chamber), fuel tank and the check valve 2 of hydraulic cylinder 7 respectively.The piston rod and the dynamic model in the die forming machine of hydraulic cylinder 7 are affixed, and the cylinder barrel of hydraulic cylinder 7 is then affixed with the make-up machine body.Check valve 2 is installed in the oil-out of hydraulic pump 1, and the oil-in of high-pressure overflow valve 3 is plugged on the pipeline between check valve 2 and the reversal valve 4, and its oil return opening then is communicated with fuel tank.The oil-in of low pressure relief valve 5 is plugged on the pipeline between reversal valve 4 and hydraulic cylinder 7 oil back chambers.And its oil return opening also is communicated with fuel tank.The pressure tap of electric contact manometer 6 is positioned on the port with hydraulic cylinder 7 high pressure chests, and the electrical signal of electric contact manometer 6 is connected with the electric control signal input of reversal valve 4.
When pressing electric switch, prime mover 8 starts and drives hydraulic pump 1 as hydraulic power supply, at this moment, reversal valve 4 is operated in primary importance, hydraulic oil enters the oil back chamber (being rod chamber) of hydraulic cylinder 7 through check valve 2, reversal valve 4, and under the effect of low pressure relief valve 5, the oil back chamber of hydraulic cylinder 7 keeps certain low pressure, under this low pressure effect, piston rod is returned to reset mode; Start reversal valve 4 switches, reversal valve 4 commutates and is operated in the second place, and hydraulic oil enters the high pressure chest (being rodless cavity) of hydraulic cylinder 7, and the piston rod band rises together with dynamic model, the dynamic model contact workpiece, system pressure increases, and when system pressure reached setting value, the workpiece punching out finished, electric contact manometer 6 sends the signal of telecommunication simultaneously, reversal valve 4 commutations are resumed work in primary importance, and the piston rod band drops to reset mode together with dynamic model, and stone material crush-cutting make-up machine is finished the one action circulation.
It is same as the prior art that present embodiment is not stated part.
Claims (4)
1. stone material crush-cutting make-up machine hydraulic control device, comprise hydraulic pump (1), drive the prime mover (8) and the reversal valve (4) of hydraulic pump (11), hydraulic cylinder (7) and fuel tank, reversal valve (4) has at least four ports, the high pressure chest that connects hydraulic cylinder (7) respectively, the oil back chamber of hydraulic cylinder (7), fuel tank and hydraulic pump (1), dynamic model in hydraulic cylinder (7) piston rod and the cylinder barrel one of them and the die forming machine is affixed, another is then affixed with the make-up machine body, it is characterized in that, also comprise a kind of electric contact manometer (6), its pressure tap is positioned on the pipeline that is communicated with hydraulic cylinder (7) high pressure chest, reversal valve (4) or a kind of solenoid directional control valve or an electro-hydraulic reversing valve, the electrical signal of electric contact manometer (6) is connected with the electric control signal input of electromagnetism or electro-hydraulic reversing valve.
2. stone material crush-cutting make-up machine hydraulic control device according to claim 1 is characterized in that piston rod and the dynamic model in the die forming machine in the hydraulic cylinder (7) are affixed.
3. stone material crush-cutting make-up machine hydraulic control device according to claim 1 is characterized in that also comprise a kind of low pressure relief valve (5), its oil-in is communicated with the oil back chamber of hydraulic cylinder (7), and its oil return opening then is communicated with fuel tank.
4. stone material crush-cutting make-up machine hydraulic control device according to claim 1, its feature just is, also comprises a kind of high-pressure overflow valve (3), and its oil-in is communicated with the oil-out of hydraulic pump (1), and its oil return opening then is communicated with fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235174 CN2334567Y (en) | 1997-08-04 | 1997-08-04 | Hydraulic controller for stone material press-cutting shaping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235174 CN2334567Y (en) | 1997-08-04 | 1997-08-04 | Hydraulic controller for stone material press-cutting shaping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2334567Y true CN2334567Y (en) | 1999-08-25 |
Family
ID=33946339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97235174 Expired - Fee Related CN2334567Y (en) | 1997-08-04 | 1997-08-04 | Hydraulic controller for stone material press-cutting shaping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2334567Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101474829B (en) * | 2009-01-16 | 2011-12-21 | 任春乐 | Pressure charging type stone plate shear |
| CN103418728A (en) * | 2013-09-05 | 2013-12-04 | 南京工业大学 | Upper die moving platform for large forging press |
| CN105411256A (en) * | 2015-12-18 | 2016-03-23 | 殷佳乐 | Automatic stretching-out and drawing-back bed foot awakening device |
-
1997
- 1997-08-04 CN CN 97235174 patent/CN2334567Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101474829B (en) * | 2009-01-16 | 2011-12-21 | 任春乐 | Pressure charging type stone plate shear |
| CN103418728A (en) * | 2013-09-05 | 2013-12-04 | 南京工业大学 | Upper die moving platform for large forging press |
| CN105411256A (en) * | 2015-12-18 | 2016-03-23 | 殷佳乐 | Automatic stretching-out and drawing-back bed foot awakening device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |