CN2772796Y - High-efficient and energy-saving closed-loop injection machine with servo-adjustment - Google Patents
High-efficient and energy-saving closed-loop injection machine with servo-adjustment Download PDFInfo
- Publication number
- CN2772796Y CN2772796Y CN 200520056512 CN200520056512U CN2772796Y CN 2772796 Y CN2772796 Y CN 2772796Y CN 200520056512 CN200520056512 CN 200520056512 CN 200520056512 U CN200520056512 U CN 200520056512U CN 2772796 Y CN2772796 Y CN 2772796Y
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- injection
- pine
- piston rod
- piston
- move back
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Abstract
The utility model relates to a servocontrol high-efficient and energy-saving closed-loop injection machine, which comprises a mode locking mechanism, an injection mechanism, a hydraulic mechanism, an electric mechanism and a machine frame, wherein an injection and backing oil cylinder with double piston rods is arranged in the injection mechanism; the hydraulic mechanism is composed of a high response rate variable pump and a high response energy accumulator. A backing piston rod is arranged at one end of the injection and backing oil cylinder, and a glue injecting piston rod is arranged at the other end. The end of the backing piston rod is positioned in a cylinder body and is provided with a glue injecting and backing piston, and one end of the glue injecting piston rod is connected with the glue injecting and backing piston. Oil seal is arranged between a rod body of the backing piston rod and an end plate, and the oil seal is arranged between the glue injecting and backing piston and the inside wall of the cylinder body. The utility model has the advantages of reasonable and simple structure, low cost, small size, compact structure, easy debugging, high precision, low energy consumption and high-speed injection and can carry out the closed-loop control of injection speed, packing pressure and plasticizing backpressure.
Description
Technical field
The utility model relates to a kind of injection machine, particularly relates to the energy-efficient full cut-off ring of a kind of SERVO CONTROL injection machine.
Background technology
The common all size and the injection machine of structure, its injection mechanism adopts the single-piston rod structure substantially, and sealing mechanism adopts the potted component based on the nitrile rubber material; Hydraulic mechanism adopts quantitative oil pump and ratio flow pressure valve as the power components and parts, and common electromagnetic direction valve is adopted in injection and dwell pressure control, and the plasticizing back pressure adopts overflow valve.The injection machine of these structures adopts open loop control mode, and its throttling and spill losses are all big, energy consumption is also higher, response speed is slow, and control accuracy is low.
In order to improve response speed, the load-sensing formula rate variable pump machanism that has adopted high response on some injection machines is also arranged, though this kind injection machine has than much progress than traditional injection moulding machine on energy-conservation, but the response speed of mechanism is still very slow, control modes such as its flow, pressure, speed, position still are open loop control, the control accuracy of mechanism and repeatable accuracy are not high, can not be suitable for high speed, High-efficient Production or precise injection molding requirement.
The utility model content
The purpose of this utility model is to provide, and a kind of simple and reasonable, low cost of manufacture, volume are little, compact conformation, but debugging is easy, control accuracy is high, the low high speed injection of energy consumption, and can and plastify the energy-efficient full cut-off ring of the SERVO CONTROL injection machine that back pressure is carried out closed-loop control to injection speed, dwell pressure, to overcome weak point of the prior art.
The energy-efficient full cut-off ring of a kind of SERVO CONTROL injection machine by this purpose design; comprise clamping mechanism, injection mechanism, hydraulic mechanism, electric mechanism and frame; its architectural feature is that the injection and the pine that are provided with double piston-rod in the injection mechanism move back oil cylinder, and hydraulic mechanism is made up of height response proportional variable pump and high response accumulator.
Above-mentioned injection and pine move back oil cylinder one end and are provided with pine and move back piston rod, and the other end is provided with the injection piston rod, and pine moves back that end that piston rod is positioned at cylinder body is provided with injection and pine moves back piston, and injection piston rod one end and injection and pine move back piston and join; Pine moves back between the body of rod of piston rod and the end plate and is provided with oil sealing, and injection and pine move back between piston and the cylinder body madial wall and be provided with oil sealing, are provided with oil sealing between the body of rod of injection piston rod and the end plate.Injection and pine move back oil cylinder and are provided with injection control oil circuit board and high frequency response servo valve.Injection and pine move back oil cylinder and are provided with high-precision displacement transducer and pressure sensor.Injection and pine move back the equal diameters that in-oil cylinder pine moves back piston rod and injection piston rod, and promptly injection and the loose oil cylinder area ratio that moves back the piston left and right sides are 1: 1.Hydraulic mechanism is provided with high frequency response servo valve and closed-loop control card.
Hydraulic mechanism in the utility model has adopted the oil pressure servo control technique, injection control oil circuit board and high frequency response servo valve are installed on injection and pine moves back on the oil cylinder, this mechanism has disposed high frequency response servo valve and closed-loop control card, is mainly used in the real-time online closed-loop control that realizes injection speed, dwell pressure and plasticizing back pressure.Hydraulic mechanism has adopted the load-sensing formula proportional variable pump of high response and high response accumulator to form compound high-efficient energy-saving power system, wherein the load-sensing formula proportional variable pump of high response is used to drive shifting formwork, ejects, penetrates and action such as move, high response accumulator is used for driving injection, pine moves back and the pressurize action, and system can be according to setting pressure to the accumulator automatic liquid feeding.
Injection and pine move back oil cylinder and are provided with high-precision displacement transducer and pressure sensor, and injection speed, dwell pressure and plasticizing back pressure are carried out online detection, and injection speed, dwell pressure and plasticizing back pressure are carried out the real-time online closed-loop control.
Electric control system can be exported the analog control signal of the required different range of the load-sensing formula proportional variable pump that is used to control high response and high frequency response servo valve simultaneously.
Response time of the present utility model, its maximum injection speed can reach 300mm/s in 25ms, and the position control accuracy of injection terminal point can reach ± 0.1mm.
The utility model is simple and reasonable, low cost of manufacture, volume are little, compact conformation, but debugging is easy, control accuracy is high, the low high speed injection of energy consumption, and can carry out closed-loop control to injection speed, dwell pressure and plasticizing back pressure.
Description of drawings
Fig. 1 moves back the structural representation of oil cylinder for injection in the utility model and pine.
Fig. 2 is the utility model hydraulic mechanism schematic diagram.
Fig. 3 is the electric local control principle figure of the utility model.
The specific embodiment
Below in conjunction with drawings and the embodiments the utility model is further described.
Referring to Fig. 1, the energy-efficient full cut-off ring of this SERVO CONTROL injection machine comprises clamping mechanism, injection mechanism, hydraulic mechanism, electric mechanism and frame, and the injection and the pine that are provided with double piston-rod in the injection mechanism wherein move back oil cylinder.Injection and pine move back oil cylinder one end and are provided with pine and move back piston rod 1, and the other end is provided with injection piston rod 6, and pine moves back that end that piston rod 1 is positioned at cylinder body 9 is provided with injection and pine moves back piston 3, and injection piston rod 6 one ends and injection and pine move back piston 3 and join; Pine moves back between the body of rod of piston rod 1 and the end plate 7 and is provided with oil sealing 2, and injection and pine move back between piston 3 and cylinder body 9 madial walls and be provided with oil sealing 4, are provided with oil sealing 5 between the body of rod of injection piston rod and the end plate 8.Injection and pine move back the equal diameters that in-oil cylinder pine moves back piston rod 1 and injection piston rod 6, and promptly injection and the loose oil cylinder area ratio that moves back piston 3 left and right sides are 1: 1.Injection and pine move back oil cylinder and are provided with injection control oil circuit board and high frequency response servo valve, and high-precision displacement transducer and pressure sensor.
Hydraulic mechanism is made up of height response proportional variable pump and high response accumulator, and hydraulic mechanism is provided with high frequency response servo valve and closed-loop control card.
Referring to Fig. 2, be hydraulic mechanism electrical structure schematic diagram, wherein, A be locked mode, B be mode transfer, C for loose core two, D for loose core one, E is that thimble, F move for penetrating, G is injection and H is a melten gel, corresponding respectively dynamo-electric coupling part separately.
P1 is high responsive load induction type rate variable pumping system in the accompanying drawing, provides other action except that injection and loose moving back required flow and pressure control; To the ACC automatic liquid feeding, ACC and V6 are used to control injection speed to P2 according to the setting pressure of V16, dwell pressure and plasticizing back pressure, and HE is a cooler.
Referring to Fig. 3, partial circuit for injection speed, dwell pressure and plasticizing back pressure are carried out the real-time online closed-loop control comprises that logic control, pine move back the input and output and the actual pressure display part of (external control), injection position, injection flow, injection pressure, pressurize and colloidal sol back pressure, injection pressure sensor.Among the figure, I is the injection pressure sensor, and J is pressurize and smelting glue back pressure, and K is an injection pressure, and L is the injection flow, and M is the injection position, and N is that pine moves back (external control), and O is logic control, and P is that actual pressure shows.
Injection control oil circuit board, high frequency response servo valve, high-precision displacement transducer, pressure sensor, high response proportional variable pump, high response accumulator and closed-loop control card do not draw among the figure.
Claims (6)
1. the energy-efficient full cut-off ring of SERVO CONTROL injection machine; comprise clamping mechanism, injection mechanism, hydraulic mechanism, electric mechanism and frame; it is characterized in that the injection and the pine that are provided with double piston-rod in the described injection mechanism move back oil cylinder, hydraulic mechanism is made up of height response proportional variable pump and high response accumulator.
2. full cut-off ring injection machine according to claim 1, it is characterized in that described injection and pine move back oil cylinder one end and be provided with pine and move back piston rod (1), the other end is provided with injection piston rod (6), pine moves back that end that piston rod (1) is positioned at cylinder body (9) is provided with injection and pine moves back piston (3), and injection piston rod one end and injection and pine move back piston (3) and join; Pine moves back between the body of rod of piston rod (1) and the end plate (7) and is provided with oil sealing (2), and injection and pine move back between piston (3) and cylinder body (9) madial wall and be provided with oil sealing (4), are provided with oil sealing (5) between the body of rod of injection piston rod and the end plate (8).
3. full cut-off ring injection machine according to claim 1 is characterized in that described injection and pine move back oil cylinder and be provided with injection control oil circuit board and high frequency response servo valve.
4. full cut-off ring injection machine according to claim 1 is characterized in that described injection and pine move back oil cylinder and be provided with high-precision displacement transducer and pressure sensor.
5. full cut-off ring injection machine according to claim 1 is characterized in that described injection and pine move back the equal diameters that in-oil cylinder pine moves back piston rod (1) and injection piston rod (6), promptly injection and pine to move back the oil cylinder area ratio of piston (3) left and right sides be 1: 1.
6. full cut-off ring injection machine according to claim 1 is characterized in that described hydraulic mechanism is provided with high frequency response servo valve and closed-loop control card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056512 CN2772796Y (en) | 2005-03-30 | 2005-03-30 | High-efficient and energy-saving closed-loop injection machine with servo-adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056512 CN2772796Y (en) | 2005-03-30 | 2005-03-30 | High-efficient and energy-saving closed-loop injection machine with servo-adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2772796Y true CN2772796Y (en) | 2006-04-19 |
Family
ID=36708052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520056512 Expired - Lifetime CN2772796Y (en) | 2005-03-30 | 2005-03-30 | High-efficient and energy-saving closed-loop injection machine with servo-adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2772796Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650055A (en) * | 2016-03-31 | 2016-06-08 | 江阴市洪腾机械有限公司 | Dual-piston-rod hydraulic cylinder |
| CN109382984A (en) * | 2018-11-22 | 2019-02-26 | 中山市盛力机械科技有限公司 | A kind of full electric injection molding machine pressure conversion device |
| CN112648243A (en) * | 2019-10-10 | 2021-04-13 | 湖北优软商用车悬架有限公司 | Double-acting energy accumulator |
-
2005
- 2005-03-30 CN CN 200520056512 patent/CN2772796Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650055A (en) * | 2016-03-31 | 2016-06-08 | 江阴市洪腾机械有限公司 | Dual-piston-rod hydraulic cylinder |
| CN109382984A (en) * | 2018-11-22 | 2019-02-26 | 中山市盛力机械科技有限公司 | A kind of full electric injection molding machine pressure conversion device |
| CN112648243A (en) * | 2019-10-10 | 2021-04-13 | 湖北优软商用车悬架有限公司 | Double-acting energy accumulator |
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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 |
Owner name: GUANGDONG YIZUMI PRECISION MACHINERY CO., LTD. Free format text: FORMER NAME: YIZHIMI PRECISION MACHINERY CO., LTD., FOSHAN |
|
| CP03 | Change of name, title or address |
Address after: 528300 Guangdong province Foshan city Shunde high tech Zone (Ronggui) No. 22 Keyuan Road three Patentee after: Guangdong Yizumi Precision Machinery Co., Ltd. Address before: 528300 Guangdong province Foshan city Shunde District Ronggui four West Jiaolu No. 47 Patentee before: Yizhimi Precision Machinery Co., Ltd., Foshan |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150330 Granted publication date: 20060419 |