CN203172060U - Press machine liquid control system - Google Patents
Press machine liquid control system Download PDFInfo
- Publication number
- CN203172060U CN203172060U CN 201320107966 CN201320107966U CN203172060U CN 203172060 U CN203172060 U CN 203172060U CN 201320107966 CN201320107966 CN 201320107966 CN 201320107966 U CN201320107966 U CN 201320107966U CN 203172060 U CN203172060 U CN 203172060U
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- hydraulic cylinder
- hydraulic pump
- hydraulic
- way solenoid
- control valve
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Abstract
The utility model relates to a liquid control system, in particular to a press machine liquid control system. The press machine liquid control system comprises an oil tank, a hydraulic pump and a hydraulic cylinder. A filter is arranged between the oil tank and the hydraulic pump. A three-position four-way magnetic exchange valve is arranged between the hydraulic pump and the hydraulic cylinder. An oil inlet of the three-position four-way magnetic exchange valve is connected with the hydraulic pump. An oil return port of the three-position four-way magnetic exchange valve is connected with the oil tank. Two working oil ports of the three-position four-way magnetic exchange valve are connected with the hydraulic cylinder. An overflow valve for protecting the hydraulic cylinder in an overload state is arranged between the hydraulic pump and the oil tank. A one-way adjustable throttle valve is arranged between a rodless cavity of the hydraulic cylinder and one working oil port of the three-position four-way magnetic exchange valve. An adjustable throttle valve is arranged between a rod cavity of the hydraulic cylinder and the other working oil port of the three-position four-way magnetic exchange valve. The press machine liquid control system has the advantages of being high in safety performance, low in device maintenance cost, simple in operation, and convenient to use.
Description
Technical field
The utility model relates to a kind of hydraulic control system, relates in particular to a kind of forcing press hydraulic control system.
Background technology
The forcing press that tradition is used generally adopts hydraulic control system to control, forcing press when work, because can not guaranteeing the cylinder body of hydraulic cylinder, hydraulic system regains fast, so just greatly reduce the forcing press workpiece of crushing fast, the work requirements of regaining has fast reduced operating efficiency then;
Simultaneously, the warning safety measure that arranges in the hydraulic system is less, when for example hypertonia occurring, can not in time detect the high pressure in the oil circuit, can not in time handle, the long-time use causes that equipment existence operation in service is unreliable, security performance is low, causes the cost of equipment maintenance height.
Novel content
The purpose of this utility model is to provide a kind of forcing press hydraulic control system, to solve the existing technical problem of using that the operation of forcing press hydraulic control system is unreliable, security performance is low.
The utility model is to realize like this; a kind of forcing press hydraulic control system; comprise fuel tank; hydraulic pump and hydraulic cylinder; be provided with filter between described fuel tank and the described hydraulic pump; be provided with the 3-position 4-way solenoid directional control valve between described hydraulic pump and the described hydraulic cylinder; the oil-in of described 3-position 4-way solenoid directional control valve connects described hydraulic pump; the oil return opening of described 3-position 4-way solenoid directional control valve connects described fuel tank; two actuator ports of described 3-position 4-way solenoid directional control valve connect hydraulic cylinder; be provided with the overflow valve for the described hydraulic cylinder of overload protection between described hydraulic pump and the described fuel tank; be provided with unidirectional adjustable throttling between the actuator port of described hydraulic cylinder rodless cavity and described 3-position 4-way solenoid directional control valve, be provided with adjustable throttling between another actuator port of described hydraulic cylinder rod chamber and described 3-position 4-way solenoid directional control valve.
As further improvement, be provided with pressure sensor between the oil-in of described hydraulic pump and described 3-position 4-way solenoid directional control valve, described pressure sensor connects warning device.
After having adopted technique scheme, the beneficial effects of the utility model are:
Owing to be provided with unidirectional adjustable throttling in the hydraulic control system, can realize the adjusting of speed by the control of flow, thereby the cylinder body that can realize hydraulic control system control hydraulic cylinder is regained fast, increase work efficiency, the quality that the arranging of filter can guarantee hydraulic oil in the oil circuit has improved forcing press reliability of operation, stationarity.
Owing to be provided with overflow valve between the oil-in of hydraulic pump and 3-position 4-way solenoid directional control valve, further improved the security of equipment operation.
Owing to be provided with pressure sensor in the hydraulic control system, and be connected with warning device, if when in the hydraulic control system hypertonia taking place, warning device can in time send signal, can in time handle the pressure in the hydraulic control oil circuit, has guaranteed the interior element dependability of oil circuit.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Among the figure: 1, hydraulic cylinder, 2, rodless cavity, 3, rod chamber, 4, filter, 5, fuel tank, 6, adjustable throttling, 7, adjustable throttling, 8, check valve, 9, the 3-position 4-way solenoid directional control valve, 10, pressure sensor, 11, overflow valve, 12, hydraulic pump, 13, host's oil circuit.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1; a kind of forcing press hydraulic control system; comprise fuel tank 5; hydraulic pump 12 and hydraulic cylinder 1; be provided with filter 4 between fuel tank 5 and the hydraulic pump 12; be provided with 3-position 4-way solenoid directional control valve 9 between hydraulic pump 12 and the hydraulic cylinder 1; the oil-in of 3-position 4-way solenoid directional control valve 9 connects hydraulic pump 12; the oil return opening of 3-position 4-way solenoid directional control valve 9 connects fuel tank 5; two actuator ports of 3-position 4-way solenoid directional control valve 9 connect hydraulic cylinder 1; be provided with the overflow valve 11 for the overload protection hydraulic cylinder between hydraulic pump 12 and the fuel tank 5; be provided with unidirectional adjustable throttling between the actuator port of the rodless cavity 2 of hydraulic cylinder 1 and 3-position 4-way solenoid directional control valve 9, be provided with adjustable throttling 7 between the rod chamber 3 of hydraulic cylinder 1 and another actuator port of 3-position 4-way solenoid directional control valve 9.Preferably, hydraulic pump 12 is unidirectional quantitative hydraulic pump.
Be provided with pressure sensor 10 between the oil-in of hydraulic pump 12 and 3-position 4-way solenoid directional control valve 9, pressure sensor 10 connects warning device.Preferably, warning device is acoustic-optic alarm, the supporting connection pressure sensor 10 of plc, pressure sensor 10 detected signals are converted to electrical signal transfer and give supporting plc, plc guide sound light crossing-signal, force value comparison when detected force value and setting, during greater than setting value, acoustic-optic alarm will be sounded and optical signal, reminds the staff to note the operation conditions of equipment, thereby in time handle, improve safe handling property.
In use, after at first the hydraulic oil in the fuel tank 5 filters through filter 4, supply with host's oil circuit 13 by hydraulic pump 12, host's oil circuit 13 is supplied with unidirectional adjustable throttling by 3-position 4-way solenoid directional control valve 9 with hydraulic oil, check valve 8 in the unidirectional adjustable throttling is obstructed at this moment, adjustable throttling 6 is connected, enter then in the rodless cavity 2 of hydraulic cylinder 1 of connection, this moment, the rod chamber 3 of hydraulic cylinder 1 was communicated with 3-position 4-way solenoid directional control valve 9 by adjustable throttling 7,3-position 4-way solenoid directional control valve 9 is connected with fuel tank 5 by oil return line, hydraulic oil in the rod chamber 3 of hydraulic cylinder 1 flows back in the fuel tank 5, the fluid that the rodless cavity 2 of hydraulic cylinder 1 enters in this process drives the piston rod movement of hydraulic cylinder 1, exert pressure to workpiece, the hydraulic oil in the rod chamber 3 of hydraulic cylinder 1 flows back in the fuel tank 5, has finished the task of exerting pressure to workpiece;
3-position 4-way solenoid directional control valve 9 arrives meta function position then, this meta function is the M type, this moment, hydraulic cylinder 1 was lockable, the hydraulic pump off-load, after the smooth transition through the meta function, 3-position 4-way solenoid directional control valve 9 arrives next commutation position, this moment, host's oil circuit 13 interior hydraulic oil entered adjustable throttling 7 through 3-position 4-way solenoid directional control valve 9 earlier, enter then in the rod chamber 3 of hydraulic cylinder 1 of connection, hydraulic oil in the rodless cavity 2 of hydraulic cylinder 1 enters unidirectional adjustable throttling, the interior check valve 8 of unidirectional adjustable throttling this moment is communicated with, and the hydraulic oil in the rodless cavity 2 of hydraulic cylinder 1 directly flow back in the fuel tank 5 the piston rod drawback movement of this process hydraulic cylinder 1.
In addition, be provided with overflow valve 11 between the oil-in of hydraulic pump 12 and 3-position 4-way solenoid directional control valve 9, further guaranteed the reliable of hydraulic system.
Be provided with filter 4 between hydraulic pump 12 and the fuel tank 5, guarantee to enter the quality of hydraulic oil in hydraulic pump and fluid pressure line, the element, improved the equipment traveling comfort.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. forcing press hydraulic control system; comprise fuel tank; hydraulic pump and hydraulic cylinder; be provided with filter between described fuel tank and the described hydraulic pump; be provided with the 3-position 4-way solenoid directional control valve between described hydraulic pump and the described hydraulic cylinder; the oil-in of described 3-position 4-way solenoid directional control valve connects described hydraulic pump; the oil return opening of described 3-position 4-way solenoid directional control valve connects described fuel tank; two actuator ports of described 3-position 4-way solenoid directional control valve connect hydraulic cylinder; be provided with the overflow valve for the described hydraulic cylinder of overload protection between described hydraulic pump and the described fuel tank; it is characterized in that; be provided with unidirectional adjustable throttling between the actuator port of described hydraulic cylinder rodless cavity and described 3-position 4-way solenoid directional control valve, be provided with adjustable throttling between another actuator port of described hydraulic cylinder rod chamber and described 3-position 4-way solenoid directional control valve.
2. forcing press hydraulic control system according to claim 1 is characterized in that, is provided with pressure sensor between the oil-in of described hydraulic pump and described 3-position 4-way solenoid directional control valve, and described pressure sensor connects warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107966 CN203172060U (en) | 2013-03-09 | 2013-03-09 | Press machine liquid control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107966 CN203172060U (en) | 2013-03-09 | 2013-03-09 | Press machine liquid control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203172060U true CN203172060U (en) | 2013-09-04 |
Family
ID=49068810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320107966 Expired - Fee Related CN203172060U (en) | 2013-03-09 | 2013-03-09 | Press machine liquid control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203172060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616588A (en) * | 2015-01-21 | 2015-05-13 | 苏州市职业大学 | Small manual hydraulic material stretching instrument |
| CN107339284A (en) * | 2017-08-21 | 2017-11-10 | 福建龙马环卫装备股份有限公司 | A kind of oil cylinder decision-making system and method in place |
-
2013
- 2013-03-09 CN CN 201320107966 patent/CN203172060U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616588A (en) * | 2015-01-21 | 2015-05-13 | 苏州市职业大学 | Small manual hydraulic material stretching instrument |
| CN107339284A (en) * | 2017-08-21 | 2017-11-10 | 福建龙马环卫装备股份有限公司 | A kind of oil cylinder decision-making system and method in place |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 261500 Shandong city of Weifang province Gaomi City glue river dredging port logistics park station Patentee after: Shandong Yongping renewable Tiomin Resources Inc Address before: Weifang City, Gaomi City Province Road 261500 Shandong Port Logistics Park No. 9 glue Patentee before: Shandong Yongping Regeneration Resource Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Press machine liquid control system Effective date of registration: 20161228 Granted publication date: 20130904 Pledgee: Shandong Gaomi rural commercial bank Limited by Share Ltd Pledgor: Shandong Yongping renewable Tiomin Resources Inc Registration number: 2016980000308 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181008 Granted publication date: 20130904 Pledgee: Shandong Gaomi rural commercial bank Limited by Share Ltd Pledgor: Shandong Yongping renewable Tiomin Resources Inc Registration number: 2016980000308 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20200309 |