CN108215108A - A kind of quick response servo-control system of injection moulding machine - Google Patents
A kind of quick response servo-control system of injection moulding machine Download PDFInfo
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- CN108215108A CN108215108A CN201611162099.0A CN201611162099A CN108215108A CN 108215108 A CN108215108 A CN 108215108A CN 201611162099 A CN201611162099 A CN 201611162099A CN 108215108 A CN108215108 A CN 108215108A
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- injection
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- fuel tank
- cylinder
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- 230000004044 response Effects 0.000 title claims abstract description 35
- 238000001746 injection moulding Methods 0.000 title claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 72
- 239000007924 injection Substances 0.000 claims abstract description 72
- 239000003921 oil Substances 0.000 claims abstract description 60
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 46
- 239000002828 fuel tank Substances 0.000 claims abstract description 45
- 239000012530 fluid Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000001133 acceleration Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of quick response servo-control system of injection moulding machine, including：Fuel tank (1), hydraulic pump (4), servo motor (3), oil return solenoid valve (5), servo electromagnetic valve (6).System provided by the invention, by before injection, the hydraulic oil that hydraulic pump pumps out is directed back in fuel tank using oil return solenoid valve, the servo motor of control hydraulic pump is enabled to reach maximum (top) speed before injection, overcome servo motor due to rotating speed promotion need the time caused by response speed it is slow the problem of, in this way when proceeding by injection, the Serve Motor Control hydraulic pump of working at high speed, by the hydraulic oil in fuel tank, through servo electromagnetic valve, it is pumped into injection cylinder, carry out injection work, substantially increase the injection response speed of the system, meet the injection requirement of thin-wall product.The mono- ﹑ control accuracies Gao ﹑ debugging of system structure Jin Cou ﹑ oil circuits Jian is easy, has excellent dynamic stability, and keep the high-precision energy conservation characteristic of servo motor.
Description
Technical field
The present invention relates to injection control technology field, the quick response SERVO CONTROL systems of more particularly to a kind of injection moulding machine
System.
Background technology
In recent years, with the 3C Products update speed such as laptop, mobile phone and personal digital assistant
Accelerate, the design concept of product is promoted just to develop towards " light, thin, short, small " direction.Because thin-wall product has the feed consumption Shao ﹑ periods
The advantages that fast, so demand of the people to thin-wall product is increasing, promotes Thin-Wall Injection Molding Technology to be rapidly developed.But
Because Thin-Wall Injection Molding Technology is fast in addition to requiring injection moulding speed, the injection acceleration for also requiring injection initial stage is fast, i.e. requirement injection
Initial stage injection response is fast, but conventional injection molding machine is difficult to meet thin-wall product, at injection initial stage to injection quick response
It is required that.
Invention content
In order to solve problem of the prior art, an embodiment of the present invention provides a kind of quick response servos of injection moulding machine
Control system.The technical solution is as follows：
On the one hand, an embodiment of the present invention provides a kind of quick response servo-control system of injection moulding machine, the notes
Molding machine includes：Injection cylinder, the injection cylinder include：Cylinder barrel, the cylinder cap for being arranged on cylinder barrel both ends and cylinder bottom are arranged on
Piston and one end in cylinder barrel are connect with piston and the other end stretches out the piston rod of cylinder cap, and cylinder barrel, piston, cylinder cap form the
One inner cavity, cylinder barrel, piston, cylinder bottom form second inner chamber；
The system comprises：
Fuel tank, for storing hydraulic oil；
Hydraulic pump connects respectively with fuel tank and injection cylinder, for the hydraulic oil in fuel tank to be pumped into injection cylinder；
Servo motor is connect with hydraulic pump, for controlling hydraulic pump works；
Oil return solenoid valve, respectively the oil outlet with fuel tank and hydraulic pump connect, for before injection starts, hydraulic pump to be pumped
The hydraulic oil gone out is directed back to fuel tank；It is additionally operable to, when being molded beginning, stop the section hydraulic oil that hydraulic pump pumps out being directed back to oil
Case；
Servo electromagnetic valve, respectively with the first inner chamber of injection cylinder, second inner chamber, hydraulic pump oil outlet and fuel tank
Connection, for when being molded beginning, the hydraulic oil that hydraulic pump pumps out being imported into second inner chamber, and simultaneously will be in first inner chamber
Hydraulic oil be directed back in fuel tank.
In the quick response servo-control system of the above-mentioned injection moulding machine of the embodiment of the present invention, the servo electromagnetic valve
Including：With the first actuator port of first inner chamber connection, the second actuator port, fuel-displaced with hydraulic pump being connect with second inner chamber
The oil inlet of mouth connection and the oil outlet being connect with fuel tank,
The servo electromagnetic valve be used for be molded start when, oil inlet is connected with the second actuator port, while by first
Actuator port is connected with oil outlet.
In the quick response servo-control system of the above-mentioned injection moulding machine of the embodiment of the present invention, the servo electromagnetic valve
For two-position four-way solenoid valve or three position four-way electromagnetic valve.
In the quick response servo-control system of the above-mentioned injection moulding machine of the embodiment of the present invention, the oil return solenoid valve
For two-position two-way solenoid valve.
In the quick response servo-control system of the above-mentioned injection moulding machine of the embodiment of the present invention, the hydraulic pump is single
To quantitative hydraulic pump.
In the quick response servo-control system of the above-mentioned injection moulding machine of the embodiment of the present invention, further include：It is connected to
Filter between hydraulic pump and fuel tank.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
By the way that before injection, the hydraulic oil that hydraulic pump pumps out is directed back in fuel tank using oil return solenoid valve so that control
The servo motor of hydraulic pump processed can reach maximum (top) speed before injection, overcome servo motor since rotating speed promotion needs the time
The problem of caused response speed is slow, in this way when proceeding by injection, the Serve Motor Control hydraulic pump of working at high speed will be oily
Hydraulic oil in case through servo electromagnetic valve, is pumped into injection cylinder, carries out injection work, substantially increases the injection of the system
Response speed meets the injection requirement of thin-wall product.In addition, the system has excellent dynamic stability and response quickly
Property, the mono- ﹑ control accuracies Gao ﹑ debugging of Jie structure Jin Cou ﹑ oil circuits Jian is easy, and closed-loop control can be carried out to injection moulding speed, makes
The injection moulding speed booster response time reaches the booster response time of servo electromagnetic valve, and keeps the high-precision of servo motor energy saving
Characteristic.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structure diagram for injection cylinder that the embodiment of the present invention one provides；
Fig. 2 is that a kind of structure of the quick response servo-control system for injection moulding machine that the embodiment of the present invention one provides is shown
It is intended to.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
It before the present embodiment is introduced, first with reference to Fig. 1, is discussed in detail, the quick response servo of the injection moulding machine
The structure of injection cylinder in the injection moulding machine that control system is controlled.Referring to Fig. 1, which includes：Cylinder barrel 701 is set
Cylinder cap 702 and cylinder bottom 703, the piston 704 that is arranged in cylinder barrel 701 and one end at cylinder barrel both ends is put to connect with piston 704
And the piston rod 705 of other end stretching cylinder cap 702, cylinder barrel 701, piston 704, the composition first inner chamber 71 of cylinder cap 702, cylinder barrel 701,
Piston 704, cylinder bottom 703 form second inner chamber 72.When injection cylinder 7 is started to work, hydraulic pressure can be injected into second inner chamber 72
Oil, while the hydraulic oil in first inner chamber 71 is exported, such piston 704 in second inner chamber 72 under the promotion of hydraulic oil, to
702 direction of cylinder cap moves, while the piston rod 705 being connected on piston 704 is driven to stretch out cylinder cap 702, to complete injection action；
After the completion of injection, hydraulic oil can be injected into first inner chamber 71, while the hydraulic oil in second inner chamber 72 is exported, it is living in this way
Plug 704 under the promotion of hydraulic oil, moves, while drive piston rod 705 to cylinder barrel in first inner chamber 71 to 703 direction of cylinder bottom
It is retracted in 701, to complete the reset of injection cylinder.
Embodiment one
An embodiment of the present invention provides a kind of quick response servo-control systems of injection moulding machine, are particularly suitable for thin
The preparation of wall product, referring to Fig. 2, which can include：
Fuel tank 1, for storing hydraulic oil.
Hydraulic pump 4 connects respectively with fuel tank 1 and injection cylinder 7, for the hydraulic oil in fuel tank 1 to be pumped into injection cylinder 7
In.
Servo motor 3 is connect with hydraulic pump 4, for hydraulic pump 4 to be controlled to work.
Oil return solenoid valve 5, respectively the oil outlet with fuel tank 1 and hydraulic pump 4 connect, for before injection starts, by hydraulic pressure
The hydraulic oil that pump 4 pumps out is directed back to fuel tank 1；It is additionally operable to, when being molded beginning, stop leading the section hydraulic oil that hydraulic pump 4 pumps out
Return to fuel tank 1.
Servo electromagnetic valve 6, respectively with the first inner chamber of injection cylinder 7 71, second inner chamber 72, hydraulic pump 4 oil outlet, with
And fuel tank 1 connects, and for when being molded beginning, the hydraulic oil that hydraulic pump 4 pumps out to be imported into second inner chamber 72, and simultaneously will
Hydraulic oil in first inner chamber 71 is directed back in fuel tank 1.
It should be noted that the injection molding of thin-wall product and the injection molding of conventional products have higher requirement, it is main
If it is required that in injection start time, injection moulding machine has larger injection acceleration, so that injection moulding speed is rapidly achieved note
Modeling requirement, i.e. requirement injection fast response time.In order to meet above-mentioned requirements, in the present embodiment, before injection starts, it is switched on
Servo motor 3, meanwhile, under the action of oil return solenoid valve 5, the hydraulic oil that hydraulic pump 4 pumps out can be directed back in fuel tank 1, caused
Servo motor 3 is made to can reach maximum (top) speed before injection starts, in this way when starting injection, can effectively be overcome due to servo electricity
The problem of promotion of 3 rotating speed of machine needs the time, starts low-response improves the injection acceleration at injection initial stage.Specifically, when injection is opened
During the beginning, quick response, oil return solenoid valve 5 stop the part for pumping out hydraulic pump 4 simultaneously for oil return solenoid valve 5 and servo electromagnetic valve 6
Hydraulic oil is directed back to fuel tank 1, and the hydraulic oil that hydraulic pump 4 pumps out is imported into second inner chamber 72 by servo electromagnetic valve 6, and simultaneously
Hydraulic oil in first inner chamber 71 is directed back in fuel tank 1, when having ensured that injection starts, the hydraulic oil that is passed through in second inner chamber 72
Amount so that injection cylinder 7 has larger injection acceleration.
In addition, servo electromagnetic valve 6 is additionally operable to when injection cylinder 7 resets, the hydraulic oil that hydraulic pump 4 pumps out is imported into
In one inner cavity 71, and the hydraulic oil in second inner chamber 72 is directed back in fuel tank 1 simultaneously.It should be noted that injection cylinder 7
It resetting to work with the oil return of oil return solenoid valve 5 and be carried out at the same time, the hydraulic oil that such hydraulic pump 4 pumps out will be divided into two parts,
A part of hydraulic oil will be imported by servo electromagnetic valve 6 in first inner chamber 71, be resetted for injection cylinder 7, another part hydraulic pressure
It is oily then flowed back into fuel tank 1 by oil return solenoid valve 5.It is of course also possible to which above-mentioned two process is separately carried out, do not limit here
System.
Specifically, referring to Fig. 1, servo electromagnetic valve 6 can include：The first actuator port 61 for being connected with first inner chamber 71,
The second actuator port 62 for being connect with second inner chamber 72, the oil inlet 63 being connect with the oil outlet of hydraulic pump 4 and with fuel tank 1
The oil outlet 64 of connection.
Servo electromagnetic valve 6 be used for be molded start when, oil inlet 63 and the second actuator port 62 are connected, while by first
Actuator port 61 is connected with oil outlet 64.
In the present embodiment, servo electromagnetic valve 6 can be also used for when injection cylinder 7 resets, by oil inlet 63 and first
Actuator port 61 is connected, while the second actuator port 62 is connected with oil outlet 64.
Optionally, servo electromagnetic valve 6 can be two-position four-way solenoid valve or three position four-way electromagnetic valve.
In the present embodiment, when servo electromagnetic valve 6 is two-position four-way solenoid valve, there are mainly two types of operating mode,
First, for when being molded beginning, oil inlet 63 and the second actuator port 62 are connected, while by the first actuator port 61 with going out
Hydraulic fluid port 64 is connected；The second is for when injection cylinder 7 resets, oil inlet 63 and the first actuator port 61 to be connected, simultaneously will
Second actuator port 62 is connected with oil outlet 64.It can work together with the oil return of oil return solenoid valve 5 at this point, injection cylinder 7 resets
Shi Jinhang.When servo electromagnetic valve 6 is three position four-way electromagnetic valve, removes outside above two operating mode, be also in third
Kind operating mode, under this operating mode, four mouths (i.e. the first actuator port 61, the second actuator port of servo electromagnetic valve 6
62nd, oil inlet 63 and oil outlet 64) it is not turned between each other.This operating mode, can be with the oil return of oil return solenoid valve 5
Work is used in combination.
Optionally, oil return solenoid valve 5 can be two-position two-way solenoid valve.At this point, there are two types of Working moulds for the tool of oil return solenoid valve 5
Formula, one is two working holes (not indicated in attached drawing) of itself are connected, the second is between disconnecting itself two working hole
Connection.
Optionally, hydraulic pump 4 can be unidirectional quantitative hydraulic pump, the in this way flow direction and flow convenient for control hydraulic oil, have
Conducive to accurate control injection moulding speed.
Optionally, referring to Fig. 2, which can also include：The filter 2 being connected between hydraulic pump 4 and fuel tank 1 is used
In filtering out the impurity in hydraulic oil.
Below in conjunction with the accompanying drawings, the quick response servo-control system of the injection moulding machine, control injection are briefly introduced
Molding injection moulding process.
Before injection starts, servo motor 3 first opens rotation, meanwhile, fuel tank 1 and hydraulic pump 4 is connected in oil return solenoid valve 5
Oil outlet so that the hydraulic oil that hydraulic pump 4 pumps out is directed back in fuel tank 1, and in the process, the rotating speed of servo motor 3 is being molded
Maximum is can reach before starting, the response speed of servo motor 3 can be effectively improved.
When being molded beginning, oil return solenoid valve 5 stops the oil outlet of conducting fuel tank 1 and hydraulic pump 4, meanwhile, servo electromagnetism
6 hydraulic fluid port 63 of valve is connected with the second actuator port 62, and the first actuator port 61 with oil outlet 64 is connected and (is pumped hydraulic pump 4
The hydraulic oil gone out is imported into second inner chamber 72, and the hydraulic oil in first inner chamber 71 is directed back in fuel tank 1), at this point, always
Servo motor 3 in maximum (top) speed work controls hydraulic pump 4, pumps out in hydraulic oil to second inner chamber 72, open from fuel tank 1
Beginning quickly carries out injection work.
After the completion of injection, servo motor 3 can also work a period of time, to complete the reset of injection cylinder 7, at this point, watching
It takes solenoid valve 6 oil inlet 63 and the first actuator port 61 are connected, while the second actuator port 62 is connected (i.e. with oil outlet 64
The hydraulic oil that hydraulic pump 4 pumps out is imported into first inner chamber 71, and the hydraulic oil in second inner chamber 72 is directed back to oil simultaneously
In case 1).
The quick response servo-control system of injection moulding machine provided in an embodiment of the present invention, by before injection, adopting
The hydraulic oil that hydraulic pump pumps out is directed back in fuel tank with oil return solenoid valve so that controlling the servo motor of hydraulic pump can note
Reach maximum (top) speed before modeling, overcome the problem of response speed caused by servo motor needs the time due to rotating speed promotion is slow, this
Sample is when proceeding by injection, the Serve Motor Control hydraulic pump of working at high speed, by the hydraulic oil in fuel tank, through servo electromagnetism
Valve is pumped into injection cylinder, carries out injection work, is substantially increased the injection response speed of the system, is met thin-wall product
Injection requirement.In addition, the system has excellent dynamic stability and response quickly of system, the mono- ﹑ controls of Jie structure Jin Cou ﹑ oil circuits Jian
Precision Gao ﹑ debugging processed is easy, and can carry out closed-loop control to injection moulding speed, reaches the injection moulding speed booster response time and watches
The booster response time of solenoid valve is taken, and keeps the high-precision energy conservation characteristic of servo motor.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of quick response servo-control system of injection moulding machine, the injection moulding machine include：Injection cylinder (7), institute
Injection cylinder (7) is stated to include：Cylinder barrel (701), the cylinder cap (702) for being arranged on cylinder barrel both ends and cylinder bottom (703) are arranged on cylinder barrel
(701) piston (704) and one end in are connect with piston (704) and the other end stretches out the piston rod (705) of cylinder cap (702),
Cylinder barrel (701), piston (704), cylinder cap (702) form first inner chamber (71), cylinder barrel (701), piston (704), cylinder bottom (703) structure
Into second inner chamber (72)；
It is characterized in that, the system comprises：
Fuel tank (1), for storing hydraulic oil；
Hydraulic pump (4) connects respectively with fuel tank (1) and injection cylinder (7), for the hydraulic oil in fuel tank (1) to be pumped into injection
In oil cylinder (7)；
Servo motor (3) is connect with hydraulic pump (4), for hydraulic pump (4) to be controlled to work；
Oil return solenoid valve (5), respectively the oil outlet with fuel tank (1) and hydraulic pump (4) connect, for before injection starts, by liquid
The hydraulic oil that press pump (4) pumps out is directed back to fuel tank (1)；It is additionally operable to, when being molded beginning, stop the part for pumping out hydraulic pump (4)
Hydraulic oil is directed back to fuel tank (1)；
Servo electromagnetic valve (6) goes out respectively with the first inner chamber of injection cylinder (7) (71), second inner chamber (72), hydraulic pump (4)
Hydraulic fluid port and fuel tank (1) connection, for when being molded beginning, the hydraulic oil that hydraulic pump (4) pumps out to be imported into second inner chamber
(72) in, and the hydraulic oil in first inner chamber (71) is directed back in fuel tank (1) simultaneously.
2. system according to claim 1, which is characterized in that the servo electromagnetic valve (6) includes：With first inner chamber (71)
The first actuator port (61) of connection, the second actuator port (62), fuel-displaced with hydraulic pump (4) being connect with second inner chamber (72)
The oil inlet (63) of mouth connection and the oil outlet (64) being connect with fuel tank (1),
The servo electromagnetic valve (6) for be molded start when, oil inlet (63) and the second actuator port (62) are connected, simultaneously
First actuator port (61) and oil outlet (64) are connected.
3. system according to claim 2, which is characterized in that the servo electromagnetic valve (6) for two-position four-way solenoid valve or
Person's three position four-way electromagnetic valve.
4. system according to claim 1, which is characterized in that the oil return solenoid valve (5) is two-position two-way solenoid valve.
5. system according to claim 1, which is characterized in that the hydraulic pump (4) is unidirectional quantitative hydraulic pump.
6. according to claim 1-5 any one of them systems, which is characterized in that further include：It is connected to hydraulic pump (4) and fuel tank
(1) filter (2) between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611162099.0A CN108215108B (en) | 2016-12-15 | 2016-12-15 | Quick response servo control system of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611162099.0A CN108215108B (en) | 2016-12-15 | 2016-12-15 | Quick response servo control system of injection molding machine |
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| Publication Number | Publication Date |
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| CN108215108A true CN108215108A (en) | 2018-06-29 |
| CN108215108B CN108215108B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08127053A (en) * | 1994-10-31 | 1996-05-21 | Toshiba Mach Co Ltd | Injection device of injection molding machine |
| CN2562958Y (en) * | 2002-09-02 | 2003-07-30 | 宁波海天股份有限公司 | Pre-molding, injection hydraulic loop of injection molding machine |
| JP2009012259A (en) * | 2007-07-03 | 2009-01-22 | Nissei Plastics Ind Co | Hydraulic driving method and apparatus for injection molding machine |
| CN101793276A (en) * | 2010-02-08 | 2010-08-04 | 上海汇益控制系统股份有限公司 | Electrohydraulic servo system for two-way high-speed switch |
| CN201684804U (en) * | 2010-01-21 | 2010-12-29 | 上海埃锡尔数控机床有限公司 | Servo control system for plate bending machine |
| CN103660218A (en) * | 2013-12-04 | 2014-03-26 | 稻朗（上海）电塑科技有限公司 | A servo driving system of an injection moulding machine |
| CN104948538A (en) * | 2015-06-03 | 2015-09-30 | 福建工程学院 | Plate bending machine servo hydraulic system and construction method thereof |
-
2016
- 2016-12-15 CN CN201611162099.0A patent/CN108215108B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08127053A (en) * | 1994-10-31 | 1996-05-21 | Toshiba Mach Co Ltd | Injection device of injection molding machine |
| CN2562958Y (en) * | 2002-09-02 | 2003-07-30 | 宁波海天股份有限公司 | Pre-molding, injection hydraulic loop of injection molding machine |
| JP2009012259A (en) * | 2007-07-03 | 2009-01-22 | Nissei Plastics Ind Co | Hydraulic driving method and apparatus for injection molding machine |
| CN201684804U (en) * | 2010-01-21 | 2010-12-29 | 上海埃锡尔数控机床有限公司 | Servo control system for plate bending machine |
| CN101793276A (en) * | 2010-02-08 | 2010-08-04 | 上海汇益控制系统股份有限公司 | Electrohydraulic servo system for two-way high-speed switch |
| CN103660218A (en) * | 2013-12-04 | 2014-03-26 | 稻朗（上海）电塑科技有限公司 | A servo driving system of an injection moulding machine |
| CN104948538A (en) * | 2015-06-03 | 2015-09-30 | 福建工程学院 | Plate bending machine servo hydraulic system and construction method thereof |
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| CN108215108B (en) | 2024-02-27 |
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Effective date of registration: 20190730 Address after: Room 201, Building A, No. 1 Qianwan Road, Shenzhen Qianhai Road Shenzhen Cooperation Zone, 518000 Guangdong Province (Admitted to Shenzhen Qianhai Business Secretary Co., Ltd.) Applicant after: Shenzhen Zhongke Shengda Interconnection Intelligent Technology Co.,Ltd. Address before: 518112 No. 6, Bantian Avenue, Bantian street, Longgang District, Guangdong, Shenzhen Applicant before: KUNDA MOLD (SHENZHEN) Co.,Ltd. Applicant before: SHENZHEN FUDA INTELLIGENT SYSTEM |
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