CN205592207U - Servo hydraulic system of duplex position plastics cavity former - Google Patents
Servo hydraulic system of duplex position plastics cavity former Download PDFInfo
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- CN205592207U CN205592207U CN201620318432.1U CN201620318432U CN205592207U CN 205592207 U CN205592207 U CN 205592207U CN 201620318432 U CN201620318432 U CN 201620318432U CN 205592207 U CN205592207 U CN 205592207U
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Abstract
The utility model relates to a servo hydraulic system of duplex position plastics cavity former, including stroke feedback electronic ruler, servo controller, energy -efficient servo motor and hydraulic gear pump, and a plurality of hydraulic cylinder subassemblies, the linear displacement of the moving part walking on the stroke feedback electronic ruler check out test set to timely feedback to servo controller department is in order to carry out the curve positioning simulation, energy -efficient servo motor is hydraulic gear pump's power supply, and it realizes parametric curve control through servo controller to hydraulic gear pump, makes the rotational speed of energy -efficient servo motor output change according to servo curve, hydraulic gear pump connects the oil tank, energy -efficient servo motor control hydraulic gear pump's flow and pressure output, hydraulic gear pump is according to the flow and required the finishing the work of each hydraulic cylinder subassembly output of pressure output control that obtain. Its have accurate steady, the response is fast, action acumen, energy -conservation, stable performance, the characteristics of debugging easily.
Description
Technical field
This utility model relates to a kind of servo hydraulic system, a kind of servo hydraulic system for double-station plastic hollow forming equipment.
Background technology
The hydraulic system of the double-station plastic hollow forming equipment of currently available technology, generally use the supporting pair vane pump of three phase electric machine of routine as hydraulic system power subject, passing ratio pressure valve and proportional flow control valve (being commonly called as PQ valve) carry out leading adjustment to system pressure and flow, thus indirectly controlled system pressure and the output of flow.This mode is simple due to collocation, therefore be widely used on current hydraulic hollow former, but incident shortcoming is as follows: a. determines operating position information owing to PLC first passes through, issue instructions to PQ valve and carry out the control execution of pressure flow, the response speed of PQ valve self is limited, and fed back through the delay of time after PLC, the response speed causing pressure flow to export is not enough, make action response delayed, it is delayed that the most obvious effect is exactly the deceleration of shifting formwork action, cause shifting formwork action impact bigger than normal, reduce board stability；B. when the goods that the blow molding time is longer, device action dwell time is longer, and conventional hydraulic pump motor is at idling conditions, and energy consumption is wasted；C. due to the delayed delayed response of PLC and PQ valve, causing shifting formwork action need to increase brake valve or mould shifting oil cylinder increases buffer structure and realizes acceleration and deceleration buffering, action debugging difficulty is big.
Defect in view of above existing plastic hollow former hydraulic system, if the problem such as the low-response of existing hydraulic technique, big, the difficult debugging of energy consumption need to be improved, existing hydraulic technique must be reformed targetedly, to adapt to the development of plastic hollow former action control technology, accordingly, it would be desirable to improve further.
Summary of the invention
The purpose of this utility model is the deficiency overcoming above-mentioned prior art to exist, and the debugging low, easy of a kind of fast response time, energy consumption is provided, the servo hydraulic system of double-station plastic hollow forming equipment that parametrization degree is high.
The purpose of this utility model is achieved in that
A kind of servo hydraulic system of double-station plastic hollow forming equipment, it is characterised in that: include travel feedback electronic ruler, servo controller, energy-efficient servomotor and hydraulic gear pump, and some hydraulic cylinder components；The linear displacement of the moving component walking on described travel feedback electronic ruler detection equipment, and feed back in time at servo controller, to carry out laying-out curve simulation；Described energy-efficient servomotor is the power source of hydraulic gear pump, and it realizes parameter curve control by servo controller to hydraulic gear pump, and the rotating speed making energy-efficient servomotor export can be changed according to servo curve, and described hydraulic gear pump connects fuel tank；The flow of described energy-efficient Serve Motor Control hydraulic gear pump and pressure output, described hydraulic gear pump completes work needed for controlling the output of each hydraulic cylinder component according to the flow obtained and pressure output.
Described travel feedback electronic ruler is installed on the moving component of equipment.
Described hydraulic cylinder component includes several rocker oil cylinders, several Mode-locking oil cylinders and/or several slotting oil cylinders.
Described rocker oil cylinder, Mode-locking oil cylinder and/or a slotting oil cylinder are connected in parallel with each other.
Described rocker oil cylinder connects working connection by superposed type balance valve；Described Mode-locking oil cylinder connects working connection by the first electric-liquid reversal valve, hydraulic control one-way valve and/or the second electric-liquid reversal valve；A described oil cylinder of inserting connects working connection by solenoid directional control valve.
The beneficial effects of the utility model are as follows:
1) travel feedback electronic ruler directly feeds back to servo controller the linear displacement of moving component, servo controller is simulated curve and parameter according to the position of action, energy-efficient servomotor rotating speed is controlled, thus control output pressure and the flow of hydraulic gear pump, reach to control pressure and the flow of hydraulic jack, so that hydraulic jack action is more precisely steadily, so information is directly fed back with energy-efficient servomotor and servo controller, make energy-efficient servomotor response speed accelerate, make hydraulic operation reaction sharper.
2) product molding motor dally in the case of, energy-efficient servomotor can stop racing, until need start time start again, reduce energy dissipation.
3) energy-efficient servomotor and servo controller directly carry out parameter curve control, can make Linear Control for output pressure and flow, while can cancelling use PQ valve, response speed is accelerated, reduce oil temperature simultaneously, reduce oil leakage phenomenon and the action instability caused because of oil temperature change.
4) servo controller only need to arrange parameter according to required stroke and speed, gets final product automatic computing curve, makes device action debugging difficulty be substantially reduced.
Accompanying drawing explanation
Fig. 1 is the oil circuit figure of this utility model one embodiment.
In figure: V1 is fuel tank, V2 is air filter, and V3 is oil level, thermometer, V5 is servo controller, and V6 is energy-efficient servomotor, and V7 is oil absorption filter, V8 is ball valve, and V10 is conversion valve block, and V12 is Pressure gauge, V13 is pressure measurement flexible pipe, and V14 is superposed type balance valve, and V15 is the first electric-liquid reversal valve, V16 is hydraulic control one-way valve, and V17 is the second electric-liquid reversal valve, and V18 is solenoid directional control valve, V19 is rocker oil cylinder, and V20 is Mode-locking oil cylinder, and V21 is for inserting an oil cylinder.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment.
See Fig. 1, the servo hydraulic system of this double-station plastic hollow forming equipment, including travel feedback electronic ruler, servo controller V5, energy-efficient servomotor V6 and hydraulic gear pump, and some hydraulic cylinder components；The linear displacement of the moving component walking on described travel feedback electronic ruler detection equipment, and feed back at servo controller V5 in time, to carry out laying-out curve simulation；Described energy-efficient servomotor V6 is the power source of hydraulic gear pump, and it realizes parameter curve control by servo controller V5 to hydraulic gear pump, and described hydraulic gear pump connects fuel tank V1；Described energy-efficient servomotor V6 controls flow and the pressure output of hydraulic gear pump, and described hydraulic gear pump completes work needed for controlling the output of each hydraulic cylinder component according to the flow obtained and pressure output.
Further, described energy-efficient servomotor V6 supporting servo controller V5, energy-efficient servomotor V6 driven gear pump carries out pressure flow output, the parametric curve setting by servo controller V5 and simulating, the flow of indirect control oil pump output and pressure, use the required execution of hydraulic cylinder component output.All linear displacements of action component then directly feed back to information servo controller V5 by travel feedback electronic ruler, recycling servo controller V5 carries out computing thus simulates optimal movement curve, then information feedback and control energy-efficient servomotor V6 driving gear pump exports corresponding pressure and flow by necessary requirement output speed.
Further, described travel feedback electronic ruler is installed on the moving component of equipment.
Further, described hydraulic cylinder component includes several rockers oil cylinder V19, several Mode-locking oil cylinders V20 and/or several slotting oil cylinder V21.Described rocker oil cylinder V19, Mode-locking oil cylinder V20 and/or a slotting oil cylinder V21 are connected in parallel with each other.Described rocker oil cylinder V19 connects working connection by superposed type balance valve 14；Described Mode-locking oil cylinder V20 connects working connection by the first electric-liquid reversal valve V15, hydraulic control one-way valve V16 and/or the second electric-liquid reversal valve V17；A described oil cylinder V21 that inserts connects working connection by solenoid directional control valve 18.
nullOperation principle: the defect that this structure exists for prior art improves，It uses energy-efficient servomotor V6 to replace the three-phase Oil pump electrical machinery in conventional art，Energy-efficient servomotor V6 rotating speed is controlled by servo controller V5，The output being realized pressure flow by hydraulic gear pump is converted，Realize the parameter servo control operation that locked mode station moves，According to the travel feedback electronic ruler being installed on moving component，Information is fed back to servo controller V5，Carry out calculating simulation optimum servo curve，Thus realize Rational Rotation Speed output according to parameter curve，Hydraulic gear pump is driven to realize final pressure flow output，Greatly reduce the debugging difficulty of hydraulic operation，And travel feedback electronic ruler、Servo controller V5、Energy-efficient servomotor V6、The closed-loop information system that hydraulic gear pump and moving component etc. are formed，The transmission of each component information and response speed is made to greatly speed up，Overcome transmitting hydraulic system response time slow，The problem that action is delayed，The action blank phase at equipment product molding stops the running of servomotor V6 simultaneously，Reach again energy-conservation effect，Lifting due to servo parameter，Automatization to equipment、Hommization degree extends，More go up a step the biggest，Running is rationally started additionally, due to energy-efficient servomotor V6 and hydraulic gear pump，System oil temperature is improved，It is substantially reduced the oil contamination phenomenon such as system oil leakage.
Therefore compared with conventional art, it is simple (directly saving PQ valve) that this utility model has system configuration, the debugging difficulty of the system that can solve double-station plastic hollow forming equipment the most targetedly is big, the problems such as response speed is slow, and realize the lifting of equipment servo parametrization degree, make the advantage that the fields such as the stability of equipment, energy consumption and environmental protection all have greatly improved simultaneously.Show according to test, implementation compared to the hydraulic system of similar technique, the energy-saving effect of native system is at least up to 30 50%, debugging efficiency improves more than 60%, and optimization simple, intuitive is installed on multistation plastic hollow forming equipment, the automaticity of raising equipment and quickening production efficiency, and environmental protection is clean and tidy, therefore the use on double or multistation plastic hollow forming equipment can be widely popularized.
Above-mentioned for preferred version of the present utility model, of the present utility model ultimate principle, principal character and of the present utility model advantage have been shown and described.Those skilled in the art is it should be recognized that this utility model is not restricted to the described embodiments; described in above-described embodiment and description, principle of the present utility model is simply described; on the premise of without departing from this utility model spirit and scope, this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (5)
1. the servo hydraulic system of a double-station plastic hollow forming equipment, it is characterised in that: include travel feedback electronic ruler, servo controller (V5), energy-efficient servomotor (V6) and hydraulic gear pump, and some hydraulic cylinder components；The linear displacement of the moving component walking on described travel feedback electronic ruler detection equipment, and feed back to servo controller (V5) place in time, to carry out laying-out curve simulation；Described energy-efficient servomotor (V6) is the power source of hydraulic gear pump, and it realizes parameter curve control by servo controller (V5) to hydraulic gear pump, and described hydraulic gear pump connects fuel tank (V1)；Described energy-efficient servomotor (V6) controls flow and the pressure output of hydraulic gear pump, and described hydraulic gear pump completes work needed for controlling the output of each hydraulic cylinder component according to the flow obtained and pressure output.
The servo hydraulic system of double-station plastic hollow forming equipment the most according to claim 1, it is characterised in that: described travel feedback electronic ruler is installed on the moving component of equipment.
The servo hydraulic system of double-station plastic hollow forming equipment the most according to claim 1, it is characterised in that: described hydraulic cylinder component includes several rocker oil cylinders (V19), several Mode-locking oil cylinders (V20) and/or several slotting oil cylinders (V21).
The servo hydraulic system of double-station plastic hollow forming equipment the most according to claim 3, it is characterised in that: described rocker oil cylinder (V19), Mode-locking oil cylinder (V20) and/or a slotting oil cylinder (V21) are connected in parallel with each other.
The servo hydraulic system of double-station plastic hollow forming equipment the most according to claim 4, it is characterised in that: described rocker oil cylinder (V19) connects working connection by superposed type balance valve (14)；Described Mode-locking oil cylinder (V20) connects working connection by the first electric-liquid reversal valve (V15), hydraulic control one-way valve (V16) and/or the second electric-liquid reversal valve (V17)；A described oil cylinder (V21) of inserting connects working connection by solenoid directional control valve (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620318432.1U CN205592207U (en) | 2016-04-14 | 2016-04-14 | Servo hydraulic system of duplex position plastics cavity former |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620318432.1U CN205592207U (en) | 2016-04-14 | 2016-04-14 | Servo hydraulic system of duplex position plastics cavity former |
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| CN205592207U true CN205592207U (en) | 2016-09-21 |
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| CN201620318432.1U Active CN205592207U (en) | 2016-04-14 | 2016-04-14 | Servo hydraulic system of duplex position plastics cavity former |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639782A (en) * | 2017-10-26 | 2018-01-30 | 杭州方圆塑机股份有限公司 | EPS automatic moulding machine hydraulic control systems |
| CN110102733A (en) * | 2019-06-10 | 2019-08-09 | 宁波北仑捷仑机电设备有限公司 | A kind of spraying pickup all-in-one machine |
-
2016
- 2016-04-14 CN CN201620318432.1U patent/CN205592207U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639782A (en) * | 2017-10-26 | 2018-01-30 | 杭州方圆塑机股份有限公司 | EPS automatic moulding machine hydraulic control systems |
| CN110102733A (en) * | 2019-06-10 | 2019-08-09 | 宁波北仑捷仑机电设备有限公司 | A kind of spraying pickup all-in-one machine |
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