CN103660218A - A servo driving system of an injection moulding machine - Google Patents
A servo driving system of an injection moulding machine Download PDFInfo
- Publication number
- CN103660218A CN103660218A CN201310641167.1A CN201310641167A CN103660218A CN 103660218 A CN103660218 A CN 103660218A CN 201310641167 A CN201310641167 A CN 201310641167A CN 103660218 A CN103660218 A CN 103660218A
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- CN
- China
- Prior art keywords
- servo
- oil
- driver
- servo motor
- pressure
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/82—Hydraulic or pneumatic circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76658—Injection unit
- B29C2945/76692—Injection unit drive means
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a servo driving system of an injection moulding machine. The servo driving system comprises an injection moulding machine controller, a servo driver, an encoder, a servo motor, an oil pump, a three-position four-way direction valve, an action oil cylinder and a pressure sensor. The injection moulding machine controller is connected to the servo driver in communication. The servo motor, the encoder and the servo driver form a closed-loop revolving-speed control system. The servo motor and the servo driver are connected in communication. The power output shaft of the servo motor is connected to the power input end of the oil pump. The three-position four-way direction valve is disposed with four oil mouths. The oil mouth of the oil pump is connected to a pressure oil pipe. The four oil mouths of the three-position four-way direction valve are respectively connected to the pressure oil pipe of the oil pump, the oil inlet of the action oil cylinder, the oil outlet of the action oil cylinder and an oil tank. The pressure oil pipe, the pressure sensor and the servo driver form a closed-loop pressure control system. A driving manner of a servo motor constant displacement pump is adopted by the servo driving system. The servo driving system is energy-saving. The action response of the servo driving system is quick and the action impact is small.
Description
Technical field
The present invention relates to injection machine technical field, be specifically related to a kind of servo drive system of injection machine.
Background technology
Injection machine has another name called injection (mo(u)lding) machine or injector, and during work, its heating thermoplastic or thermosetting plastics, apply high pressure to molten plastic, makes its ejaculation and is full of mold cavity, utilizes mould for plastics to make the plastic products of various shapes.Injection machine is processing equipment the most frequently used in Plastics Processing Industry.
Injection machine is comprised of injecting systems, Clamping System, Hydraulic Power Transmission System, electric control system, lubricating system, heating and cooling system, safety monitoring system and servo drive system conventionally.Wherein, servo drive system is part comparatively crucial in whole device, along with scientific and technological development, needs badly the servo drive system of existing injection machine is carried out to more optimal improvement.
Summary of the invention
The object of the invention is the deficiency existing in order to overcome prior art, a kind of servo drive system of rational in infrastructure, injection machine that reliability is high is provided.
The present invention is achieved by the following technical solutions: a kind of servo drive system of injection machine, comprise controller of plastic injection molding, servo-driver, encoder, servo motor, oil pump, 3-position 4-way direction valve, action tank and pressure sensor, described controller of plastic injection molding is connected with described servo-driver communication, described encoder is arranged on described servo motor, described encoder is connected with described servo-driver communication, described servo motor, described encoder, described servo-driver forms a speed closed loop control system, described servo-driver is connected with described servo motor communication, the power output shaft of described servo motor is connected with the power intake of described oil pump, described 3-position 4-way direction valve is provided with four hydraulic fluid ports, the oil-out of described oil pump is connected with pressure oil pipe, four hydraulic fluid ports of described 3-position 4-way direction valve respectively with the pressure oil pipe of described oil pump, the oil-in of described action tank, the oil-out of described action tank and fuel tank connect, described pressure sensor is arranged on described pressure oil pipe, described pressure sensor is connected with described servo-driver communication, described pressure oil pipe, described pressure sensor and described servo-driver form pressure closed-loop control system.
Described oil pump is constant displacement pump.
The invention has the beneficial effects as follows: the present invention adopts the type of drive of servo motor constant displacement pump, in the course of work, the servo motor work of accepting effectively to turn round after the instruction of servo-driver, in injection machine, adopt this servo drive system can power saving 40%, can be more energy-conservation, the action response of simultaneity factor is faster, and action is impacted less.
Accompanying drawing explanation
Fig. 1 is structural principle block diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, a kind of servo drive system of injection machine, comprises controller of plastic injection molding, servo-driver, encoder, servo motor, oil pump, 3-position 4-way direction valve, action tank and pressure sensor, controller of plastic injection molding is connected with servo-driver communication, and encoder is arranged on servo motor, and encoder is connected with servo-driver communication, servo motor, encoder, servo-driver forms a speed closed loop control system, servo-driver is connected with servo motor communication, the power output shaft of servo motor is connected with the power intake of oil pump, 3-position 4-way direction valve is provided with four hydraulic fluid ports, the oil-out of oil pump is connected with pressure oil pipe, four hydraulic fluid ports of 3-position 4-way direction valve respectively with the pressure oil pipe of oil pump, the oil-in of action tank, the oil-out of action tank and fuel tank connect, and pressure sensor is arranged on pressure oil pipe, and pressure sensor is connected with servo-driver communication, pressure oil pipe, pressure sensor and servo-driver form pressure closed-loop control system.
During work, servo-driver is accepted the instruction of controller of plastic injection molding, through processing, changing, to servo motor, send action command, servo motor is provided with SERVO CONTROL module, accepts the instruction of servo-driver, controls motor rotary speed, oil pump distributes fuel feeding according to the rotating speed of motor, thereby by 3-position 4-way direction valve control action cylinder action.
The present invention adopts the type of drive of servo motor constant displacement pump, makes whole system energy-saving effect more obvious, and action response is faster, and action is impacted less.
Finally should be noted that; above content is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; the simple modification that those of ordinary skill in the art carries out technical scheme of the present invention or be equal to replacement, does not all depart from essence and the scope of technical solution of the present invention.
Claims (2)
1. the servo drive system of an injection machine, it is characterized in that: the servo drive system of described injection machine comprises controller of plastic injection molding, servo-driver, encoder, servo motor, oil pump, 3-position 4-way direction valve, action tank and pressure sensor, described controller of plastic injection molding is connected with described servo-driver communication, described encoder is arranged on described servo motor, described encoder is connected with described servo-driver communication, described servo motor, described encoder, described servo-driver forms a speed closed loop control system, described servo-driver is connected with described servo motor communication, the power output shaft of described servo motor is connected with the power intake of described oil pump, described 3-position 4-way direction valve is provided with four hydraulic fluid ports, the oil-out of described oil pump is connected with pressure oil pipe, four hydraulic fluid ports of described 3-position 4-way direction valve respectively with the pressure oil pipe of described oil pump, the oil-in of described action tank, the oil-out of described action tank and fuel tank connect, described pressure sensor is arranged on described pressure oil pipe, described pressure sensor is connected with described servo-driver communication, described pressure oil pipe, described pressure sensor and described servo-driver form pressure closed-loop control system.
2. the servo drive system of injection machine according to claim 1, is characterized in that: described oil pump is constant displacement pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310641167.1A CN103660218A (en) | 2013-12-04 | 2013-12-04 | A servo driving system of an injection moulding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310641167.1A CN103660218A (en) | 2013-12-04 | 2013-12-04 | A servo driving system of an injection moulding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103660218A true CN103660218A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310641167.1A Pending CN103660218A (en) | 2013-12-04 | 2013-12-04 | A servo driving system of an injection moulding machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN103660218A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382981A (en) * | 2015-12-04 | 2016-03-09 | 上海鹿帛传动科技有限公司 | Sensorless servo driving system of vulcanizing machine |
| CN107584000A (en) * | 2017-10-17 | 2018-01-16 | 柳州北斗星液压科技有限公司 | Multi-pass pipe forming system and method |
| CN108215108A (en) * | 2016-12-15 | 2018-06-29 | 群达模具(深圳)有限公司 | A kind of quick response servo-control system of injection moulding machine |
| CN111810495A (en) * | 2020-07-30 | 2020-10-23 | 宁波埃科思注塑科技有限公司 | Injection molding machine mode locking hydraulic system of closed oil circuit |
| CN112147917A (en) * | 2019-06-26 | 2020-12-29 | 上海英威腾工业技术有限公司 | Servo motor driver with pressure control loop |
-
2013
- 2013-12-04 CN CN201310641167.1A patent/CN103660218A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382981A (en) * | 2015-12-04 | 2016-03-09 | 上海鹿帛传动科技有限公司 | Sensorless servo driving system of vulcanizing machine |
| CN105382981B (en) * | 2015-12-04 | 2017-06-16 | 上海鹿帛传动科技有限公司 | A kind of vulcanizer without sensor servo drive system |
| CN108215108A (en) * | 2016-12-15 | 2018-06-29 | 群达模具(深圳)有限公司 | A kind of quick response servo-control system of injection moulding machine |
| CN108215108B (en) * | 2016-12-15 | 2024-02-27 | 深圳市中科晟达互联智能科技有限公司 | Quick response servo control system of injection molding machine |
| CN107584000A (en) * | 2017-10-17 | 2018-01-16 | 柳州北斗星液压科技有限公司 | Multi-pass pipe forming system and method |
| CN112147917A (en) * | 2019-06-26 | 2020-12-29 | 上海英威腾工业技术有限公司 | Servo motor driver with pressure control loop |
| CN111810495A (en) * | 2020-07-30 | 2020-10-23 | 宁波埃科思注塑科技有限公司 | Injection molding machine mode locking hydraulic system of closed oil circuit |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |