CN1817611A - Injection machine system with electromechanical liquid composite control - Google Patents
Injection machine system with electromechanical liquid composite control Download PDFInfo
- Publication number
- CN1817611A CN1817611A CN 200610012479 CN200610012479A CN1817611A CN 1817611 A CN1817611 A CN 1817611A CN 200610012479 CN200610012479 CN 200610012479 CN 200610012479 A CN200610012479 A CN 200610012479A CN 1817611 A CN1817611 A CN 1817611A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- motor
- valve
- hydraulic cylinder
- injection machine
- 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.)
- Granted
Links
Images
Abstract
An electrically, mechanically and hydraulically controlled injection moulding system features that such units are additionally used in existing hydraulic system as pressure sensor, two-way proportional throttle valve, energy accumulator, electromagnetic valve, electric one-way valve, rotation speed controller and controllable clutch, two groups of output lines are used for controlling the rotation speeds of two motors, and the proportional valve is controlled by proportional amplifier according to signals of master computer and pressure sensor.
Description
Technical field
The present invention relates to a kind of injection machine automatic control system, especially a kind of injection machine is completed to the compound automation control system of mechanical electronic hydraulic that injection molding process carries out.
Background technology
Injection machine is the capital equipment of producing plastic products, the injection machine of producing at present both at home and abroad mainly contains the complete automatically controlled and large class of hydraulic control two, adopts entirely automatically controlledly, and an injection machine will be used 5 to 6 servomotors, although production process energy efficiency is high, the cost of equipment is also very high.Tradition adopts the injection machine of hydraulic control system, all adopt a set of power source to control locked mode hydraulic cylinder, eject hydraulic cylinder, hydraulic injection cylinder, the action of frame translation hydraulic cylinder and 5 actuators of preformed hydraulic motor, so cost is compared with low many of the injection machine of all-electric control system, its power source mainly adopts AC asynchronous motor to drive quantitative hydraulic pump to add ratio PQ valve and AC asynchronous motor drives two kinds of modes of ratio PQ pump, although the latter improves many compared with the former energy efficiency, but still with rated speed, turn round in fractional load and inoperative cycle motor, there is more energy consumption.In order to reduce this part energy consumption, new technology is on the basis of system above, has further increased the control device of motor speed.As just proposed to drive electric weight hydraulic pump with variable speed motor in European patent EP 050972A1, coordinate the scheme of the compound control Hydraulic System for Injection Moulding Machine of PQ proportioning valve.In German patent DE 3919823A1, invented the variable pump with driven by servomotor quantitative hydraulic pump or electronics displacement control, press closed circuit principle and control the principle of hydraulic injection molding machine actuator, though this scheme has greatly reduced the energy consumption of injection machine production process, but require pump to there is bidirectional rotation function, and to adopt the hydraulic cylinder of two rods, also to use other servomotor and control pre-plastic process, cause that systems technology is complicated, cost is high.
For prior art is further improved, the present invention proposes the power that is used as mode locking cylinder backhaul with the kinetic energy in accumulator storage mode locking cylinder feeding process and braking energy, and with proportional throttle valve, control the backhaul of locked mode hydraulic cylinder, thereby only need hydraulic pump and the motor of one direction running, can reduce the energy consumption that motor produces in damped condition running, and make die sinking, eject the new circuit theory with the parallel running of preformed energy, compared with the existing technology, not only can further reduce energy consumption, cost is also low.
Summary of the invention
The problem to be solved in the present invention is to adopt in the prior art electronic control or hydraulic control system, and cost is high, energy consumption is large and the problem of system complex.Its object is to provide the injection machine system of the compound control of mechanical electronic hydraulic that a kind of cost is lower, production process noise is little and capacity usage ratio is high.
The present invention is based on the problems referred to above and object, the technical scheme proposing includes hydraulic cylinder (I), hydraulic cylinder (II), hydraulic cylinder (III), hydraulic cylinder (IV), motor (I), direction valve (I), direction valve (II), direction valve (III), counterbalance valve, hydraulic pump, motor (II), main control computer, direction valve (IV), it is to have set up pressure sensor in existing injection machine system that its system forms, two-way proportional throttle valve, accumulator, two-position two-way solenoid valve, electric control one-way valve, rotational speed governor (I), controllable clutch (I), controllable clutch (II), pressure sensor described in it is mounted in pipeline l
2or in the A chamber of hydraulic cylinder (I), the actual pressure value in hydraulic cylinder (I) A chamber is converted to the signal of telecommunication and is input in proportional amplifier, the oil-in b of described two-way proportional throttle valve
1connection is at pipeline l
2upper, outlet b
2connection is on fuel tank, the hydraulic fluid port x of described accumulator is communicated with the B chamber of hydraulic cylinder (I), two hydraulic fluid ports of described two-position two-way solenoid valve respectively with pipeline l
4and the connection of the B chamber of hydraulic cylinder (I), pipeline l
3one end be communicated with the B chamber of hydraulic cylinder (I), the other end is communicated with the entrance of the direction valve (I) of hydraulic cylinder (II), the import d of described electric control one-way valve
1connection is at the conduit under fluid pressure l of hydraulic pump outlet
1, l
4upper, outlet d
2connection is at pipeline l
2on, described rotational speed governor has two groups of output line E
1, E
2, one group of line E of its output
1be connected with three electric power incoming lines of motor (II), another group line E
2be connected with three electric power incoming lines of motor (I), the command signal u that proportional amplifier provides by main control computer
vthe signal u transmitting with pressure sensor
p, according to formula
To setting value u
vafter correction, by signal u
qbe input in two-way proportional throttle valve p in formula
0it is a predetermined normal value.
Motor described above (I) and motor (II) are AC induction motor, AC servo motor or switched reluctance machines.
Hydraulic pump described above is the variable-displacement pump of constant displacement pump or electronics proportion control.
In rotational speed governor described above (I), be provided with a set of rectifier, a counter circuit, the pwm signal that is provided with two or more generates and driver module (I) and pwm signal generation and driver module (II), be provided with two or more inverters (I) and inverter (II), be provided with two groups or more output line E
1, E
2, one group of line E of its output
1be connected with three electric power incoming lines of motor (II), another group line E
2be connected with three electric power incoming lines of motor (I), the output signal of counter circuit is connected on pwm signal generation and driver module (I) and pwm signal generation and driver module (II) simultaneously; Pwm signal generates and the signal of driver module (I) is input in inverter (I), and pwm signal generates and the signal of driver module (II) is input in inverter (II).
The output shaft at motor described above (I) two ends is connected on controllable clutch (I) and controllable clutch (II); The other end of controllable clutch (I) is connected with preformed drive rod, the other end of controllable clutch (II) is connected with hydraulic pump, the setting of coaxially connecting of controlled clutch (I), preformed drive rod, motor, controlled clutch (II) and hydraulic pump.
Preformed drive rod described above is connected with the output shaft of motor (I), or is connected with the output shaft of hydraulic motor.
The actuator port C of direction valve described above (IV)
1, C
2through pipeline l
2and l
3be communicated with A chamber and the B chamber of hydraulic cylinder (I) respectively, import C
3with pipeline l
1be communicated with pipeline l
6one end be communicated with the outlet of direction valve (I), direction valve (II), direction valve (III), direction valve (IV), the import b of another termination two-way proportional throttle valve
1, the outlet b of two-way proportional throttle valve
2directly be communicated with fuel tank.
The present invention adopts abovementioned technology to improve control system for shot machine, the innovative point that compared with prior art had is: (1) controls the bidirectional-movement of clamping mechanism, injecting mechanism with one direction rotating liquid press pump, and in system, does not need additional auxiliary power source; (2) for clamping mechanism, with accumulator, carry out the braking of locked mode process, and store kinetic energy and the braking energy that locked mode process hydraulic cylinder has, for controlling die sinking and ejection process, reduced the energy loss that motor produces in damped condition; (3) energy that utilizes accumulator die sinking to be provided and to eject, makes whole machine only with a set of pumping source device, just have the ability of die sinking and preformed parallel drive, has improved the production efficiency of machine; (4) by controllable clutch or power electronic technology, adopt a set of frequency controller just can control the biography speed of two above motors; (5) by implementing abovementioned technology, not only reduce production cost and the technical process running cost of control system for shot machine, and reduced the noise in production process, improved the utilization rate of energy.Mechanical electronic hydraulic multiplex control system of the present invention is except in injection molding machine of plastic, tool has been widely used, can also be for other apparatus of metal molding such as die casting machines, particularly in process equipment and control engineering and other hydraulic circuit technical elements there is versatility.
Accompanying drawing explanation
Fig. 1 is the injection machine system schematic diagram of the compound control of mechanical electronic hydraulic of the present invention
Fig. 2 is the inner composition module system schematic of rotational speed governor 17 of the present invention
Fig. 3 is that motor of the present invention is controlled preformed and hydraulic pump system schematic diagram simultaneously
Fig. 4 is that the present invention replaces Electric Machine Control preformed system schematic with hydraulic motor
Fig. 5 is the injection machine system schematic diagram of proportional throttle valve of the present invention and the compound control of the adjustable spring of rotating speed
图中：1：液压缸 ( I ) 2：液压缸 ( II ) 3：液压缸 ( III ) 4：液压缸 ( IV ) 5：电机 ( I ) 6：压力传感器 7：二通比例节流阀 8：蓄能器 9：二位二通电磁阀 10：电控向阀 11：方向阀 ( I ) 12：方向阀 ( II ) 13：方向阀 ( III ) 14：背压阀 15：液压泵 16：电机 ( II ) 17：转速控制器 ( I ) 18：主控计算机 19：比例放大器 20：预塑驱动杆 21：整流器22：滤波器 23：计算回路 24：电压/电流检测回路 25：PWM信号生成驱动模块 ( I ) 26：PWM信号生成驱动模块 ( II ) 27：逆变器 ( I ) 28：逆变器 ( II ) 29：可控离合器 ( I ) 30：可控离合器 ( II ) 31：转速控制器 ( II ) 32：液压马达 33：方向阀 ( IV )
The specific embodiment
Below in conjunction with drawings and Examples, principle and the structure of the compound control injection machine system of mechanical electronic hydraulic of the present invention are further detailed, the present embodiment is detailed description of the invention, the present invention is not made to any restriction.
Embodiment 1
Hydraulic cylinder of the present invention (I) the 1st, template hydraulic cylinder is for driving template, hydraulic cylinder (II) the 2nd, ejects hydraulic cylinder for ejecting the workpiece processing, hydraulic cylinder (III) the 3rd, frame translation hydraulic cylinder moves forward and backward for injection moulding frame, hydraulic cylinder (IV) the 4th, injection hydraulic cylinder is for injection moulding and preformed; Motor 5 is that preformed motor carries out preformed for drive screw, and this motor 5 can be AC asynchronous motor, switched reluctance machines or AC servo motor; Pressure sensor 6 detects the pressure in A chamber in template hydraulic cylinder (I) 1 motion process, and offers proportional amplifier 19; Proportional amplifier 19 is for proofreading and correct by the flow of two-way proportional throttle valve 7, and the effect of two-way proportional throttle valve 7 is the speed of (die sinking process) when controlling template hydraulic cylinder (I) 1 and returning; Accumulator 8 is for kinetic energy and braking energy in storing template hydraulic cylinder (I) 1 feed motion, the power while returning as this template hydraulic cylinder (I) 1; The effect of two-position two-way solenoid valve 9 is when accumulator 8 is due to energy loss, when Preliminary pressure-filled is lower, controls template hydraulic cylinder (I) 1 and returns; The effect of electric control one-way valve 10 is the passages that cut off between template hydraulic cylinder (I) 1A chamber and hydraulic pump 15, makes template hydraulic cylinder (I) 1, workpiece hydraulic cylinder (II) 2 and the hydraulic injection cylinder (IV) 4 can parallel operation; Direction valve (I) is that to control direction valve 11, the direction valve (II) eject hydraulic cylinder direction be that the frame hydraulic direction of motion is controlled direction valve 12, direction valve (III) is that the hydraulic injection cylinder direction of motion is controlled direction valve 13; Counterbalance valve 14 is that hydraulic injection cylinder in pre-plastic process (IV) 4 produces certain back pressure; The effect of hydraulic pump 15 is movement velocitys of controlling each hydraulic cylinder, and this hydraulic pump 15 can be quantitative hydraulic fluid press pump, can be also the volume adjustable hydraulic pump of electronics proportion control; Fluid pressure motor 16 is for hydraulic pump provides power, and this fluid pressure motor 16 can be AC asynchronous motor, switched reluctance machines, can be also AC servo motor; Rotational speed governor has inverter (I) 31,32 and two groups of output line E of inverter (II) of two inversion circuits
1, E
2, be used for driving fluid pressure motor 16 and preformed motor 5, and can continuously change their rotating speed; The effect of main control computer 18 is to control complete machine to move by preset program; The effect of proportional amplifier 19 is according to formula
The flow of controlling two-way proportional throttle valve 7 is not subject to the impact of load pressure.
The present invention is according to the requirement of Shooting Technique, and the course of work of system is: first, main control computer 18 sends instruction u
nto rotational speed governor (I) 17, rotational speed governor (I) 17 is controlled hydraulic electric motor 16 rotational speed on request, hydraulic pump 15 is controlled lamina membranacea hydraulic cylinder (I) 1 and is stretched out, the speed of stretching out is directly proportional to the rotating speed of motor, when lamina membranacea hydraulic cylinder (I) 1 has put in place after locked mode, main control computer 18 provides instruction to frame hydraulic directio control valve (II) 12, the piston rod of controlling frame hydraulic (II) 3 stretches out, frame reach, moves on to an afer bay hydraulic directio control valve (II) 12 and gets back to meta.Main control computer 18 provides command signal to injection hydraulic pressure directional control valve (III) 13, the piston rod of controlling hydraulic injection cylinder (IV) 4 stretches out, carry out injection moulding, pressurize, injection moulding speed is controlled by changing the rotating speed of hydraulic electric motor (II) 16, after pressurize finishes, main control computer 18 provides instruction to frame hydraulic directio control valve (II) 12, controls frame hydraulic (III) 3 piston rods and regains, and frame returns to original position.Main control computer 18 provides instruction u
vto proportional amplifier 19, proportional amplifier 19 provides instruction u after computing
qcontrol the flow of two-way proportional throttle valve 7, under the dynamic action that lamina membranacea hydraulic cylinder (I) 1 provides at accumulator 8, regain piston rod and complete die sinking.Main control computer 18 further provides instruction stretches out workpiece hydraulic cylinder (II) 2 piston rods to workpiece hydraulic directio control valve (I) 11, completes after ejecting and returns, and power at this moment still has accumulator 8 to provide.Provide instruction u simultaneously
nto rotational speed governor (I) 17, but at this moment rotational speed governor (I) 17 quits work inverter (I) 27, hydraulic electric motor (II) 16 stalls, and make inverter (II) 32 conductings, the rotating speed of controlling preformed motor (I) 5 carries out preformed, after said process completes, whole system is the process repeating above, starts new one and takes turns circulation.
In the embodiment depicted in fig. 1, lamina membranacea hydraulic cylinder (I) 1, workpiece hydraulic cylinder (II) 2, frame hydraulic (III) 3, hydraulic injection cylinder (IV) 4 are all selected the differential hydro cylinder of single rod, and hydraulic injection cylinder (IV) 4 is two rods.Preformed motor I 5, hydraulic electric motor (II) 16 are all selected AC servo motor.Pressure sensor 6 pressure measurement scopes are got 0～30MPa.Two-way proportional throttle valve 7 adopts plug-in structure.Accumulator 8 is selected air sac type structure, and the blowing pressure is 7MPa.The form that two-position two-way solenoid valve 9 adopts electromagnet directly to drive.Electric control one-way valve 10 adopts bi-bit bi-pass inserted valve and electromagnetic priority valve combination.Workpiece hydraulic directio control valve valve (I) 11 is the proportioning valve directly driving, control the direction of motion and the speed of workpiece hydraulic cylinder (II) 2, frame hydraulic directio control valve (II) 12, injection hydraulic pressure directional control valve (III) 13 are electro-hydraulic reversing valve, and counterbalance valve 14 adopts the combination of overflow valve and check valve.Hydraulic pump 15 is selected interior engagement type quantitative gear pump.The composition of rotational speed governor (I) 17 as shown in Figure 2, on the basis of existing general purpose controller, increase Liao Yi road PWM generation and driver module (I) 25, PWM generation and driver module (II) 26, increase an inverter (I) 27, only with a computing unit, controlled 2 motors simultaneously.
Embodiment 2
Present embodiment and embodiment 1 (shown in Fig. 1) are basic identical, and difference part as shown in Figure 3.In concrete system, saved motor (II) 16, outside controllable clutch (I) 29 and controllable clutch (II) 30 have been set up, can solenoidoperated cluthes (I) 29, can solenoidoperated cluthes (II) 30 for preformed motor (I) 5 is coaxially connected with preformed drive rod 20 with hydraulic pump 15 respectively, and can drive preformed motor (I) 5 and preformed drive rod 20 according to technique simultaneously, also can drive respectively this two devices.Rotational speed governor (II) 31 is selected general frequency converter, and hydraulic pump 15 selects quantitative hydraulic pump, and preformed motor (I) 5 still selects AC servo motor.
Embodiment 3
The difference of the present embodiment and Fig. 1 illustrated embodiment 1 is, changes the preformed motor (I) 5 in former scheme into hydraulic motor 32, and other elements are constant, as shown in Figure 4, and the import m of hydraulic motor 32
1with the outlet b of injection hydraulic directional control valve (III) 13 l by the road
5be communicated with the outlet m of hydraulic motor
2connect with fuel tank.
Embodiment 4
On the basis of embodiment 1, implement another kind of mode, as shown in Figure 5.Cancel the element pressure sensor 6 in Fig. 1, accumulator 8, two-position two-way solenoid valve 9, electric control one-way valve 10 and pipeline, with direction valve (IV) 33, controlled the direction of motion of lamina membranacea hydraulic cylinder (I) 1, set up pipeline l
6, pipeline l
6one end is connected with the outlet of direction valve (I) 11, direction valve (II) 12 direction valves (III) 13 and direction valve (IV) 33 simultaneously, and the other end is linked the import b of two-way proportional throttle valve 7
1upper, the outlet b of two-way proportional throttle valve 7
2directly be communicated with fuel tank.Remainder is identical with embodiment 1.
Claims (7)
1. the injection machine system of the compound control of mechanical electronic hydraulic, it contains hydraulic cylinder (I) (1), hydraulic cylinder (II) (2), hydraulic cylinder (III) (3), hydraulic cylinder (IV) (4), motor (I) (5), direction valve (I) (11) direction valve (II) (12), direction valve (III) (13), counterbalance valve (14), hydraulic pump (15), motor (II) (16), main control computer (18), direction valve (IV) (33), it is characterized in that having set up pressure sensor (6) in existing injection machine system, two-way proportional throttle valve (7), accumulator (8), two-position two-way solenoid valve (9), electric control one-way valve (10), rotational speed governor (I) (17), controllable clutch (I) (29), controllable clutch (II) (30), pressure sensor described in it (6) is mounted in pipeline l
2on the A chamber of upper or hydraulic cylinder (I) (1), the actual pressure value in hydraulic cylinder (I) (1) A chamber is converted to the signal of telecommunication and is input in proportional amplifier (19), the oil-in b of described two-way proportional throttle valve (7)
1connection is at pipeline l
2upper, outlet b
2connection is on fuel tank, the hydraulic fluid port x of described accumulator (8) is communicated with the B chamber of hydraulic cylinder (I) (1), two hydraulic fluid ports of described two-position two-way solenoid valve (9) respectively with pipeline l
4and the connection of the B chamber of hydraulic cylinder (I) (1), pipeline l
3one end be communicated with the B chamber of hydraulic cylinder (I) (1), the other end is communicated with the entrance of the direction valve (I) (11) of controlling hydraulic cylinder (II) (2), the import d of described electric control one-way valve (10)
1connection is at the conduit under fluid pressure l of hydraulic pump (15) outlet
1, l
4upper, outlet d
2connection is at pipeline l
2on, described rotational speed governor (I) (17) has 2 groups of output line E
1, E
2, one group of line E of its output
1be connected with three electric power incoming lines of motor (II) (16), another group line E
2be connected with three electric power incoming lines of motor (I) (5), the command signal u that proportional amplifier (19) provides by main control computer (18)
vand the signal u that transmits of pressure sensor (6)
p, according to formula
To setting value u
vafter correction, by signal u
qbe input in two-way proportional throttle valve (7) p in formula
0it is a predetermined normal value.
2. the injection machine system of the compound control of mechanical electronic hydraulic as claimed in claim 1, is characterized in that motor (I) (5) and motor (II) (16) are AC induction motor, AC servo motor or switched reluctance machines.
3. the injection machine system of the compound control of mechanical electronic hydraulic as claimed in claim 1, is characterized in that hydraulic pump (15) is the variable-displacement pump of constant displacement pump or electronics proportion control.
4. the injection machine system of the compound control of mechanical electronic hydraulic as claimed in claim 1, it is characterized in that being provided with in rotational speed governor (I) (17) a set of rectifier (21), a counter circuit (23), the pwm signal that is provided with two or more generates and driver module (I) (25) and pwm signal generation and driver module (II) (26), be provided with two or more inverters (I) (27) and inverter (II) (28), be provided with two groups or more output line E
1, E
2, one group of line E of its output
1be connected with three electric power incoming lines of motor (II) (16), another group line E
2be connected with three electric power incoming lines of motor (I) (5); The output signal of counter circuit (23) is connected on pwm signal generation and driver module (I) (25) and pwm signal generation and driver module (II) (26) simultaneously; Pwm signal generates and the signal of driver module (I) (25) is input in inverter (I) (27), and pwm signal generates and the signal of driver module (II) (26) is input in inverter (II) (28).
5. the injection machine system of the compound control of mechanical electronic hydraulic as claimed in claim 1, is characterized in that the output shaft at motor (I) (5) two ends is connected on controllable clutch (I) (29) and controllable clutch (II) (30); The other end of controllable clutch (I) (29) is connected with preformed drive rod (20), the other end of controllable clutch (II) (30) is connected with hydraulic pump (15), and controllable clutch (I) (29), preformed drive rod (20), motor (5), controlled clutch (II) (30) and the coaxial series connection of hydraulic pump (15) arrange.
6. the injection machine system of the compound control of mechanical electronic hydraulic as claimed in claim 1, is characterized in that preformed drive rod (20) is connected with the output shaft of motor (I) (5), or is connected with the output shaft of hydraulic motor (32).
7. according to the injection machine system of the compound control of mechanical electronic hydraulic described in claim 1 to 6, it is characterized in that the actuator port C of direction valve (IV) (33)
1, C
2through pipeline l
2and l
3be communicated with A chamber and the B chamber of hydraulic cylinder (I) (1) respectively, import C
3with pipeline l
1be communicated with pipeline l
6one end be communicated with the outlet of direction valve (I) (11), direction valve (II) (12), direction valve (III) (13), direction valve (IV) (33), the import b of another termination two-way proportional throttle valve (7)
1, the outlet b of two-way proportional throttle valve (7)
2be communicated with fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100124796A CN100553934C (en) | 2006-03-07 | 2006-03-07 | The injection machine system of the compound control of mechanical electronic hydraulic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100124796A CN100553934C (en) | 2006-03-07 | 2006-03-07 | The injection machine system of the compound control of mechanical electronic hydraulic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1817611A true CN1817611A (en) | 2006-08-16 |
| CN100553934C CN100553934C (en) | 2009-10-28 |
Family
ID=36917903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100124796A Expired - Fee Related CN100553934C (en) | 2006-03-07 | 2006-03-07 | The injection machine system of the compound control of mechanical electronic hydraulic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100553934C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870160A (en) * | 2010-03-30 | 2010-10-27 | 浙江大学 | Pump-valve compound control hydraulic system for injection molding machine and control method thereof |
| CN102774719A (en) * | 2012-07-02 | 2012-11-14 | 太原理工大学 | Intelligent elevator safety tongs |
| CN102962428A (en) * | 2012-11-19 | 2013-03-13 | 宜兴市佳晨压铸机制造有限公司 | Environmental-friendly energy-saving die-casting machine electrohydraulic control system and energy-saving method |
| CN104797827A (en) * | 2012-11-20 | 2015-07-22 | 沃尔沃建筑设备公司 | Pressurized medium assembly |
| CN104819184A (en) * | 2015-03-27 | 2015-08-05 | 深圳大学 | Action separation or linkage control switching method of die sinking and pin ejecting technology |
| CN105599252A (en) * | 2015-12-30 | 2016-05-25 | 太原理工大学 | Electro-hydraulic hybrid energy coordinative recovery control device for injection molding machine |
| CN106640800A (en) * | 2017-01-09 | 2017-05-10 | 叶伟强 | Hydraulic system applied to hydraulic full-automatic unloading iron cutting machine |
| CN108361238A (en) * | 2017-01-27 | 2018-08-03 | 恩格尔奥地利有限公司 | Piston-cylinder unit and molding machine for molding machine |
| CN109689335A (en) * | 2016-07-28 | 2019-04-26 | 瑞尼浦斯欧洲公司 | System for controlling the baffle of adapted to injection system |
| CN109915427A (en) * | 2019-03-21 | 2019-06-21 | 福建工程学院 | A kind of three pumps with back pressure control are straight to drive electric hydrostatic actuator |
-
2006
- 2006-03-07 CN CNB2006100124796A patent/CN100553934C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870160B (en) * | 2010-03-30 | 2013-05-29 | 浙江大学 | Pump-valve compound control hydraulic system for injection molding machine and control method thereof |
| CN101870160A (en) * | 2010-03-30 | 2010-10-27 | 浙江大学 | Pump-valve compound control hydraulic system for injection molding machine and control method thereof |
| CN102774719A (en) * | 2012-07-02 | 2012-11-14 | 太原理工大学 | Intelligent elevator safety tongs |
| CN102774719B (en) * | 2012-07-02 | 2014-07-09 | 太原理工大学 | Intelligent elevator safety tongs |
| CN102962428A (en) * | 2012-11-19 | 2013-03-13 | 宜兴市佳晨压铸机制造有限公司 | Environmental-friendly energy-saving die-casting machine electrohydraulic control system and energy-saving method |
| CN102962428B (en) * | 2012-11-19 | 2015-04-15 | 宜兴市佳晨压铸机制造有限公司 | Environmental-friendly energy-saving die-casting machine electrohydraulic control system and energy-saving method |
| US9926005B2 (en) | 2012-11-20 | 2018-03-27 | Volvo Construction Equipment Ab | Pressurized medium assembly |
| CN104797827A (en) * | 2012-11-20 | 2015-07-22 | 沃尔沃建筑设备公司 | Pressurized medium assembly |
| CN104819184A (en) * | 2015-03-27 | 2015-08-05 | 深圳大学 | Action separation or linkage control switching method of die sinking and pin ejecting technology |
| CN105599252A (en) * | 2015-12-30 | 2016-05-25 | 太原理工大学 | Electro-hydraulic hybrid energy coordinative recovery control device for injection molding machine |
| CN105599252B (en) * | 2015-12-30 | 2017-08-22 | 太原理工大学 | One kind injection mechanical electronic hydraulic mixed tensor coordinates recovery control device |
| CN109689335A (en) * | 2016-07-28 | 2019-04-26 | 瑞尼浦斯欧洲公司 | System for controlling the baffle of adapted to injection system |
| CN109689335B (en) * | 2016-07-28 | 2021-03-12 | 瑞尼浦斯欧洲公司 | System for controlling a baffle of an injection molding system |
| CN106640800A (en) * | 2017-01-09 | 2017-05-10 | 叶伟强 | Hydraulic system applied to hydraulic full-automatic unloading iron cutting machine |
| CN108361238A (en) * | 2017-01-27 | 2018-08-03 | 恩格尔奥地利有限公司 | Piston-cylinder unit and molding machine for molding machine |
| CN109915427A (en) * | 2019-03-21 | 2019-06-21 | 福建工程学院 | A kind of three pumps with back pressure control are straight to drive electric hydrostatic actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100553934C (en) | 2009-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1817611A (en) | Injection machine system with electromechanical liquid composite control | |
| CN103267034B (en) | Load sensitive hydraulic system with compensation valve energy recovery function | |
| CN1256521C (en) | Frequency converter volume variable speed closed hydraulic control systems | |
| CN101691878B (en) | Hydraulic pump flow regulating device | |
| CN1286600C (en) | Method and drive system for control/regulation of linear pressure/cast movement | |
| CN108425893B (en) | Hydraulic system of distributed direct-driven excavator with servo motor driven double variable pumps | |
| CN1818382A (en) | Closed electrohydraulic controlling system | |
| CN108591144B (en) | Hydraulic system of motor-driven double-dosing pump double-accumulator distributed direct-drive excavator | |
| CN102639881B (en) | Kinematic control in a hydraulic system | |
| CN101691877B (en) | Servo motor control-based multi-pump combination controlled hydraulic power system | |
| CN103924626A (en) | Energy-saving rotary table drive system and drive control method of electric drive hydraulic excavator | |
| CN110030304A (en) | A kind of coordinated drive and passive active brake method of large inertia load | |
| CN101503998A (en) | Electrohydraulic integrating dual-displacement variable power control system | |
| CN107700576A (en) | Hydraulic crawler excavator action potential recycling system | |
| CN108560632A (en) | A kind of loading machine of electro-hydraulic combination drive | |
| CN107600175A (en) | A kind of car active front steering system and its rotating direction control method based on accumulator | |
| CN201288657Y (en) | Electro-hydraulic integration dual chamber power variant control apparatus | |
| CN1140859C (en) | Composite speed regulating system and method with frequency conversion and electrohydraulic proportion technology | |
| CN201361927Y (en) | Pressure adjusting and speed adjusting circuit for pressure-flow composite proportion in concrete block machine | |
| CN209818444U (en) | Hydraulic cylinder position control system based on bidirectional pressure regulation | |
| CN1282536C (en) | Preinjection, injection hydraulic return passage of injection machine | |
| Koitto et al. | Experimental investigation of a directly driven hydraulic unit in an industrial application | |
| CN2871169Y (en) | Controller of plastic jetting former | |
| CN111425471A (en) | Electro-magnetic direct-drive plunger pump driven hydrostatic actuating system | |
| CN217152464U (en) | Hydraulic machine energy recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: City's light Valeo (Foshan) automobile lighting system Co., Ltd Assignor: Taiyuan University of Technology Contract fulfillment period: 2009.11.5 to 2014.12.5 contract change Contract record no.: 2010440000005 Denomination of invention: Injection machine system with electromechanical liquid composite control Granted publication date: 20091028 License type: Exclusive license Record date: 20091230 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.11.5 TO 2014.12.5; CHANGE OF CONTRACT Name of requester: SHIGUANG VALEO (FOSHAN) AUTOMOTIVE LIGHTING SYSTEM Effective date: 20091230 |
|
| 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: 20091028 Termination date: 20160307 |