CN201415463Y - Energy-saving high-precision gas-electric hybrid injection molding machine - Google Patents
Energy-saving high-precision gas-electric hybrid injection molding machine Download PDFInfo
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- CN201415463Y CN201415463Y CN2009203034076U CN200920303407U CN201415463Y CN 201415463 Y CN201415463 Y CN 201415463Y CN 2009203034076 U CN2009203034076 U CN 2009203034076U CN 200920303407 U CN200920303407 U CN 200920303407U CN 201415463 Y CN201415463 Y CN 201415463Y
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Abstract
The utility model relates to an energy-saving high-precision gas-electric hybrid injection molding machine which controls the injection molding pressure through an electronic mode. The utility model settles the defects of high energy consumption and large noise of the injection molding machine, which are caused by the continuous high-speed rotation of an asynchronous motor adopted in the prior art. The energy-saving high-precision gas-electric hybrid injection molding machine comprises an injection molding pressure cylinder and a hydraulic system connected with the pressure cylinder. The hydraulic system comprises a two-position four-way reversing valve, an oil box, an oil pump and a pressure sensor. The utility model is characterized in that: the oil pump is connected with a servo motor which is connected with a servo driver; the servo driver is connected with a movement controller; and an encoding device for feedback is also connected between the servo motor and the servo driver. A host machine in the traditional injection molding machine is replaced by the movement controller for realizing the electronic control of the pressure cylinder and the hydraulic system. The servo driveris matched with the servo motor. The dynamic pressure is detected real-time through a pressure sensor and is transmitted to the movement controller for comparing with the initial input. The comparingresult is transmitted to the servo controller for instantly changing the rotation speed of the servo motor, modifying the pressure deviation continuously and realizing energy saving for 30%-70%. Theservo motor rotates at the condition lower than the rated rotation speed in most time period, and the nose does not exceed 75db. The period of the motion controller and the pressure sensor for measuring the actual pressure together is 1ms. The dynamic response of the pressure control is quick and can obtain dozens of ms in the pressure range of 0-140 kg. The pressure control precision is high.
Description
Technical field
The utility model relates to a kind of injection machine, and especially a kind of mode by electronics is controlled the electric mixed injection molding machine of energy-conservation high accuracy oil of injection pressure.
Background technology
At present, the hydraulic system that links to each other with oil pressure cylinder in the common injection machine has comprised oil pump, flow valve, proportional pressure valve and pressure sensor, oil pump is driven by asynchronous motor, flow valve is connected to the output of oil pump, proportional pressure valve and oil pump are arranged in parallel, pressure sensor and main frame carry out exchanges data, after the host setting initial value, transfer data to flow valve and proportional pressure valve, in the time of the place of working, asynchronous motor is in the constant speed rotation status, generally all be in rated speed, at this moment, the power consumption of asynchronous motor is higher, pause is not worked or is needed different pressures in the middle of oil pressure cylinder, in the time of flow, asynchronous motor also is in the constant speed rotation status, causes bigger power consumption, and the noise that asynchronous motor produces is also big and lasting, when main frame and proportional pressure valve carried out transfer of data, the pressure of proportional pressure valve control dynamic response was slow, precision is lower.The pressure of common injection machine and flow are open loop control, use asynchronous motor that lasting constant rotational speed is provided, provide different speed and pressure to machine works by control ratio pressure valve and flow valve, the open loop here means that the control to the flow of oil circuit and pressure is not carry out FEEDBACK CONTROL.
Summary of the invention
The utility model has solved the available technology adopting asynchronous motor and has continued rotation at a high speed, cause injection machine highly energy-consuming, shortcoming that noise is big, provide a kind of servo-driver to match with servo motor, realize changing injection machine pressure and flow by motion control device with working conditions change, thereby the saving energy, the electric mixed injection molding machine of energy-conservation high accuracy oil of reduction noise.
The mode that available technology adopting proportional pressure valve and pressure sensor combine of also having solved the utility model causes that proportional pressure valve controlled pressure dynamic response is slow, the shortcoming of low precision, provide a kind of pressure sensor to match, the electric mixed injection molding machine of energy-conservation high accuracy oil that dynamic response is fast, precision is high with motion control device.
The technical scheme that its technical problem that solves the utility model adopts is: the electric mixed injection molding machine of a kind of energy-conservation high accuracy oil, comprise injection pressure oil cylinder and the hydraulic system that links to each other with oil pressure cylinder, described hydraulic system comprises two-position four way change valve, fuel tank, oil pump and pressure sensor, it is characterized in that described oil pump is connected with servo motor, servo motor is connected with servo-driver, servo-driver links to each other with motion control device, also is connected with the code device of feedback between servo motor and the servo-driver.Adopt servo motor to link to each other with oil pump, servo motor links to each other with servo-driver, servo motor can be by the rotating speed of servo-driver control in real time and change servo motor, adjust according to actual needs, energy consumption is low, but also the noise that can reduce to produce, servo-driver is controlled by motion control device, motion control device is by alternating interface between man and computer and input platform, pressure and flow that input service in advance needs, in the work, the detected transfer of data of pressure sensor is given motion control device, and motion control device compares the real time data that receives and predefined pressure and flow, constantly revise pressure divergence, and the parameter of revising is transferred to servo-driver, by servo-driver control servo motor, response speed is fast; Compared with former injection machine, save proportional pressure valve and flow valve, reduced the complexity of hydraulic system, also provide cost savings.
The beneficial effects of the utility model are: with the main frame in the motion control device replacement traditional injection moulding machine, realize the Electronic Control of oil pressure cylinder and hydraulic system, servo-driver and servo motor match, detect dynamic pressure in real time by pressure sensor, be transferred to motion control device and compare with initial input, comparative structure is transferred to servo-driver, the instant rotating speed that changes servo motor, constantly revise pressure divergence, realize energy-conservation 30%-70%, the servo motor most of the time is under the situation that is lower than rated speed and rotates, and noise is no more than 75db, motion control device and pressure sensor are 1ms in conjunction with the cycle of measuring actual pressure, pressure control dynamic response is fast, and the pressure limit of 0-140kg can reach tens ms the soonest, pressure controlled precision height generally can reach positive and negative 1-2kg.
Description of drawings
Fig. 1 is a kind of control structure schematic diagram of the utility model;
Fig. 2 is a kind of control principle figure of the utility model;
Fig. 3 is a kind of pressue-graph of the utility model;
Among the figure: 1, oil pressure cylinder, 2, alternating interface between man and computer, 3, motion control device, 4, pressure sensor, 5, two-position four way change valve, 6, Pressure gauge, 7, pressure-relief valve, 8, fuel tank, 9, servo motor, 10, encoder, 11, servo-driver, 12, oil pump, 13, rate control module, 14, the torque control module, 15,1 sections pressure, 16,2 sections pressure, 17,3 sections pressure.
The specific embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of energy-conservation high accuracy oil electric mixed injection molding machine (referring to accompanying drawing 1 accompanying drawing 2 accompanying drawings 3), comprise that injection machine reaches the hydraulic system that links to each other with oil pressure cylinder with oil pressure cylinder 1, hydraulic system comprises two-position four way change valve 5, fuel tank 8, oil pump 12 and pressure sensor 4, oil pump is connected with servo motor 9, servo motor is connected with servo-driver 11, servo-driver links to each other with motion control device 3, also be connected with the encoder 10 of feedback between servo motor and the servo-driver, servo-driver inside is integrated with rate control module 13 and torque control module 14, motion control device comprises pressure setting memory module and flow set memory module, and motion control device has alternating interface between man and computer 2 and input platform; Pressure sensor is connected to the output of oil pump, and joins by data wire with motion control device; Be connected with pressure-relief valve 7 between two-position four way change valve and the fuel tank, be connected to Pressure gauge 6 on the pressure-relief valve, pressure-relief valve and oil pump are parallel layout.
According to actual needs, set multistage pressure, liter/parameters such as pressure release speed, such as 15,2 sections pressure 16 of 1 section pressure and 3 sections pressure 17, and stepped variation, between each section pressure for boosting arbitrarily and release, motion control device is at first cooked up a continuous pressure curve, regulate the rotating speed of servo motor then, allow actual pressure follow the continually varying setting pressure, not only pressurize precision height, in the lifting process of pressure, also can accomplish steady, controlled.Pressure sensor detects the real-time pressure that obtains from oil pressure cylinder and is transferred to motion control device, compare with preset parameters in the motion control device, comparative result is transferred to servo-driver, by the servo driver drives servo motor, thereby change the pressure and the flow of oil pump output, and then the output pressure of change oil pressure cylinder, make the actual output pressure of oil pressure cylinder meet predefined pressure.
Above-described embodiment is a kind of preferred version of the present utility model, is not the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (4)
1. electric mixed injection molding machine of energy-conservation high accuracy oil, comprise injection pressure oil cylinder and the hydraulic system that links to each other with oil pressure cylinder, described hydraulic system comprises two-position four way change valve, fuel tank, oil pump and pressure sensor, it is characterized in that described oil pump is connected with servo motor, servo motor is connected with servo-driver, servo-driver links to each other with motion control device, also is connected with the code device of feedback between servo motor and the servo-driver.
2. the electric mixed injection molding machine of energy-conservation high accuracy oil according to claim 1 is characterized in that described motion control device comprises pressure setting memory module and flow set memory module, and motion control device has alternating interface between man and computer and input platform.
3. the electric mixed injection molding machine of energy-conservation high accuracy oil according to claim 1 is characterized in that pressure sensor is connected to the output of oil pump, and joins by data wire with motion control device.
4. according to claim 1 or the electric mixed injection molding machine of 2 or 3 described energy-conservation high accuracy oil, it is characterized in that being connected with pressure-relief valve between two-position four way change valve and the fuel tank, be connected to Pressure gauge on the pressure-relief valve, pressure-relief valve and oil pump are parallel layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203034076U CN201415463Y (en) | 2009-05-21 | 2009-05-21 | Energy-saving high-precision gas-electric hybrid injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203034076U CN201415463Y (en) | 2009-05-21 | 2009-05-21 | Energy-saving high-precision gas-electric hybrid injection molding machine |
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| Publication Number | Publication Date |
|---|---|
| CN201415463Y true CN201415463Y (en) | 2010-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009203034076U Expired - Lifetime CN201415463Y (en) | 2009-05-21 | 2009-05-21 | Energy-saving high-precision gas-electric hybrid injection molding machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001167A (en) * | 2010-09-07 | 2011-04-06 | 华南理工大学 | Plunger pump type hydraulic injection moulding machine system driven by servo motor and control method thereof |
| CN102797715A (en) * | 2012-08-27 | 2012-11-28 | 刘镇江 | Oil cylinder control device and use method thereof |
| CN102954068A (en) * | 2011-08-25 | 2013-03-06 | 苏州晟世能源管理有限公司 | Servo energy-saving electro-hydraulic power system |
| CN106870475A (en) * | 2017-04-01 | 2017-06-20 | 苏州星贝尔中空成型科技股份有限公司 | A kind of hollow blow molding machine hydraulic system |
| CN111279870A (en) * | 2020-03-29 | 2020-06-16 | 青岛农业大学 | Peanut harvester clamping and conveying hydraulic driving system and control method for preventing blockage |
-
2009
- 2009-05-21 CN CN2009203034076U patent/CN201415463Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001167A (en) * | 2010-09-07 | 2011-04-06 | 华南理工大学 | Plunger pump type hydraulic injection moulding machine system driven by servo motor and control method thereof |
| CN102001167B (en) * | 2010-09-07 | 2013-07-24 | 华南理工大学 | Plunger pump type hydraulic injection moulding machine system driven by servo motor and control method thereof |
| CN102954068A (en) * | 2011-08-25 | 2013-03-06 | 苏州晟世能源管理有限公司 | Servo energy-saving electro-hydraulic power system |
| CN102797715A (en) * | 2012-08-27 | 2012-11-28 | 刘镇江 | Oil cylinder control device and use method thereof |
| CN106870475A (en) * | 2017-04-01 | 2017-06-20 | 苏州星贝尔中空成型科技股份有限公司 | A kind of hollow blow molding machine hydraulic system |
| CN111279870A (en) * | 2020-03-29 | 2020-06-16 | 青岛农业大学 | Peanut harvester clamping and conveying hydraulic driving system and control method for preventing blockage |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315800 Ningbo, Beilun, Dagang District, No., No. five road, No. 88 Patentee after: Ningbo Hongxun Technology Co.,Ltd. Address before: 315800 Ningbo, Beilun, Dagang District, No., No. five road, No. 88 Patentee before: Ningbo Hongxun Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20100303 |
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| CX01 | Expiry of patent term |