CN203172060U - Press machine liquid control system - Google Patents

Press machine liquid control system Download PDF

Info

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
Authority
CN
China
Prior art keywords
hydraulic
hydraulic cylinder
hydraulic pump
way solenoid
solenoid directional
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.)
Expired - Fee Related
Application number
CN 201320107966
Other languages
Chinese (zh)
Inventor
郑金玲
杜希国
吴延旭
冷吉涛
王学义
郭永来
于佑水
任吉收
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.)
Shandong Yongping renewable Tiomin Resources Inc
Original Assignee
SHANDONG YONGPING REGENERATION RESOURCE 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 SHANDONG YONGPING REGENERATION RESOURCE Co Ltd filed Critical SHANDONG YONGPING REGENERATION RESOURCE Co Ltd
Priority to CN 201320107966 priority Critical patent/CN203172060U/en
Application granted granted Critical
Publication of CN203172060U publication Critical patent/CN203172060U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

The forcing press hydraulic control system
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.
CN 201320107966 2013-03-09 2013-03-09 Press machine liquid control system Expired - Fee Related CN203172060U (en)

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 (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN202064326U (en) Synchronous split hydraulic hoist
CN205013408U (en) Differential hydraulic control device is entirely cut to steel scrap
CN203161129U (en) Intelligent control device for coiled tubing operation machine
CN202851480U (en) Cooling bed skirting board hydraulic control device
CN202500840U (en) Electrohydraulic actuating mechanism with servo proportioning valve
CN203172060U (en) Press machine liquid control system
CN203384136U (en) Speed exchange circuit with parallel speed control valves
CN204547131U (en) A kind of numerical-control oil press structure
CN203547701U (en) Rotary drilling machine and mast sitting control system of same
CA3072526A1 (en) Multipurpose multi-stage hydraulic pressurizer with variable pressurization rate
CN203685768U (en) Self-locking hydraulic cylinder
CN205895755U (en) Fine control hydro -cylinder
CN203230678U (en) Hydraulic actuator inlet and outlet flow pressure independent controlling system
CN102304931B (en) Hydraulic energy-saving control system and method for loader movable arm
CN204458574U (en) A kind of punch press plug-in unit controls the hydraulic control system of two oil cylinders
CN202399562U (en) Safety protection hydraulic system for fine blanking die of fine blanking press
CN204673068U (en) A kind of Pneumatic control circuit of Sawing Machine for Aluminum-bar
CN202441660U (en) Backpressure loop of bridge synchronous jacking hydraulic system
CN204127008U (en) A kind of two move back piston hydraulic pressure valve group and twoly move back piston hydraulic pressure device
CN206513643U (en) High-pressure bypass pressure and temperature reducing valve execution system
CN201737609U (en) Simple moment limit device
CN202012095U (en) Movable arm hydraulic energy saving control device for loading machine
CN203390519U (en) Automatic pump for hydraulic wrench
CN202500844U (en) Fast and low-speed control valve assembly
CN204458585U (en) Throttling buffering hydraulic control system

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
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.

C56 Change in the name or address of the patentee
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

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

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

PC01 Cancellation of the registration of the contract for pledge of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130904

Termination date: 20200309

CF01 Termination of patent right due to non-payment of annual fee