CN108177312A - A kind of injection molding machine feeding control system - Google Patents
A kind of injection molding machine feeding control system Download PDFInfo
- Publication number
- CN108177312A CN108177312A CN201810132484.3A CN201810132484A CN108177312A CN 108177312 A CN108177312 A CN 108177312A CN 201810132484 A CN201810132484 A CN 201810132484A CN 108177312 A CN108177312 A CN 108177312A
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- China
- Prior art keywords
- back pressure
- control system
- molding machine
- model
- injection
- Prior art date
- 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.)
- Pending
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 50
- 241000086550 Dinosauria Species 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000012943 hotmelt Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 239000004033 plastic Substances 0.000 abstract description 22
- 229920003023 plastic Polymers 0.000 abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 13
- 230000006872 improvement Effects 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
-
- 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
-
- 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
Abstract
A kind of injection molding machine feeding control system, is related to injection molding machine field, and the injection control system including feeding mechanism and control feeding mechanism work, the injection control system includes：Back pressure detection module, model pre-input module and central control module.Realize that the hydraulic flow for adjusting back pressure servo valve is directly proportional to the cross-sectional area for treating injection model by using injection control system, the control of the amount to entering the plastics in mold cavity is reached, so as to ensure that the pressure in mold cavity to a certain extent, the product quality of injection production is improved.
Description
Technical field
The present invention relates to injection molding machine, more particularly to a kind of injection molding machine feeding control system.
Background technology
Injection molding machine is that thermoplastic or thermosetting plastics are made variously-shaped plastics system using mould for plastics
The main former of product.Its operation principle is heating of plastic, applies high pressure to molten plastic, projects it and is full of mould type
Chamber.Include cover half, dynamic model in existing injection molding machine mostly, merged by dynamic model and cover half after the mold cavity that is formed and be used for
Feeding mechanism for mold cavity injected plastic.Wherein feeding mechanism is included the feed hopper of plastic hot melt and will be after hot melt
Filling plastic is provided with horned dinosaur in material feeding rifle into the material feeding rifle of mold cavity, passes through horned dinosaur rotation and drives plastics in material feeding rifle
It moves and injects in mold cavity.In order to ensure the final product quality in mold cavity, it is provided with to control in feeding mechanism
The flow control valve of plastics flow velocity in material feeding rifle, for adjusting the pressure-control valve of pressure in material feeding rifle, for controlling material feeding rifle
The directional control valve of moving direction and the back pressure regulating valve for adjusting material feeding rifle back pressure.
In the prior art, the threshold value of back pressure regulating valve is preset mostly by a control device, in injection moulding process, is passed through
The pressure in mold cavity that detection horned dinosaur is subject to, adjusts back pressure regulating valve in real time so that and material feeding rifle is moved away from injection die cavities,
Ensure the pressure between plastics in material feeding rifle and mold cavity so that be not in gap in molding product and influence product matter
Amount.
But for the product injection moulding process of some irregular types, since injection die cavities movement same distance is filled into
The amount for entering the plastics in mold cavity is different, and the pressure of plastics adjusts the back of the body in the simple mold cavity being subject to by detecting horned dinosaur
Pressure regulating valve can not meet the production requirement of product, so as to influence product quality.
Invention content
The purpose of the present invention is to provide a kind of injection molding machine feeding control system, which can realize to note
The accurate control of molding machine charging improves the product quality of injection production.
The present invention above-mentioned purpose technical scheme is that：
A kind of injection molding machine feeding control system, the injection control system including feeding mechanism and control feeding mechanism work, institute
Feeding mechanism is stated to include base station, be arranged on the material feeding rifle connecting above base station and with base station horizontal sliding and be arranged on material feeding rifle
Top and with the thermofusion device that connects inside material feeding rifle, be coaxially arranged with horned dinosaur in the material feeding rifle, material feeding rifle is fixedly installed
The hydraulic cylinder parallel with material feeding rifle length direction, the hydraulic cylinder other end are fixedly connected with cover half, the back of the body are provided in the oil circuit of hydraulic cylinder
Servo valve is pressed, the injection control system includes：
Back pressure detection module for detecting the back pressure suffered by material feeding rifle, and exports back pressure detection signal；
Model pre-input module, for inputting model information corresponding with treating injection model, and corresponding output model signal；
Central control module couples back pressure detection module and model pre-input module, for receiving back pressure detection signal and model
Signal, and according to back pressure detection signal and the hydraulic flow of the model signals adjusting back pressure servo valve；
The hydraulic flow of the back pressure servo valve is directly proportional to the cross-sectional area for treating injection model.
By using above-mentioned technical proposal, when injection molding machine carries out injection work, back pressure detection module can detect material feeding
Back pressure suffered by rifle, model pre-input module can realize the output for the model information for treating injection model, so as to pass through center
Control module realizes that the hydraulic flow of control back pressure servo valve is directly proportional to the cross-sectional area for treating injection model.When material feeding rifle deviates from
When cover half moves, the hot melting plastic in thermofusion device enters mold cavity by horned dinosaur, when treating that injection model is in irregular shape
When, material feeding rifle often moves identical distance, the amount difference of the plastics in mold cavity is entered, due to realizing back pressure servo valve
Hydraulic flow it is directly proportional to the cross-sectional area for treating injection model, realize the control of the amount to entering the plastics in mold cavity
System so as to ensure that the pressure in mold cavity to a certain extent, improves the product quality of injection production.
As an improvement of the present invention, there are two the hydraulic cylinder settings.
By using above-mentioned technical proposal, due to there are two hydraulic cylinder settings so that moved by Driven by Hydraulic Cylinder material feeding rifle
More stablize when dynamic.
As an improvement of the present invention, the base station upper surface is fixedly installed a horizontal sliding slot, and the thermofusion device leads to
The sliding slot is crossed to connect with base station sliding.
By using above-mentioned technical proposal, the setting of sliding slot realizes material feeding rifle and the sliding of base station connects.
As an improvement of the present invention, fold forms limiting slot outward for the sliding slot both sides, the thermofusion device be provided with
The L-type sliding block of the limiting slot sliding connection.
By using above-mentioned technical proposal, the setting of limiting slot realizes the same of the limiting to material feeding rifle and thermofusion device
When, also achieve the sliding connection between material feeding rifle and thermofusion device and base station so that connected more between material feeding rifle and base station
Add stabilization.
As an improvement of the present invention, the model pre-input module is set as computer.
By using above-mentioned technical proposal, since model pre-input module is set as computer, the mill of diversified forms is realized
Has the input of information.
As an improvement of the present invention, the central control module includes the back pressure comparison module being arranged in series and microprocessor
Device, the back pressure comparison module couple the back pressure detection module, and drop is exported when back pressure detection signal is higher than default back pressure value
Signal is pressed, the microprocessor couples the model pre-input module, when receiving buck signal, adjusts the back pressure servo
The hydraulic flow of valve.
By using above-mentioned technical proposal, the setting cooperation microprocessor of back pressure comparison module realizes the entirety to back pressure
It keeps, the cooperation of microprocessor and model pre-input module realizes the fine tuning to back pressure.It is achieved thereby that improve the standard of back pressure
The effect of exactness improves the quality of injecting products to a certain extent.
As an improvement of the present invention, the computer is provided with back pressure value pre-input unit, the back pressure value pre-input unit
For exporting the back pressure preset value.
By using above-mentioned technical proposal, since back pressure value pre-input unit is arranged in computer, realizes and pass through computer
The default back pressure value of input, so as to facilitate input of the staff to default back pressure value.
As an improvement of the present invention, the microprocessor communicates with the computer USB.
By using above-mentioned technical proposal, usb communication is as a kind of common communication modes, and control mode is easy, number
Stablize according to transmission, so as to improve the stability of default back pressure value to a certain extent
In conclusion the invention has the advantages that：Control is accurate, due to pre- by back pressure monitoring modular and model simultaneously
Input module controls back pressure servo valve, so as to improve the accurate adjusting to back pressure servo valve flow to a certain extent, one
Determine to improve the quality of injecting products in degree.
Description of the drawings
Fig. 1 is the overall structure diagram of feeding mechanism；
Fig. 2 is the system diagram for being molded control system；
Fig. 3 is horned dinosaur structure diagram；
Fig. 4 is the A portions enlarged drawing in Fig. 3.
In figure, 1, feeding mechanism；11st, base station；111st, sliding slot；112nd, limiting slot；12nd, material feeding rifle；121st, horned dinosaur；122nd, liquid
Cylinder pressure；123rd, back pressure servo valve；13rd, thermofusion device；13rd, L-type sliding block；2nd, it is molded control system；21st, back pressure detection module；22、
Model pre-input module；221st, back pressure value pre-input unit；23rd, central control module；231st, back pressure comparison module；232nd, Wei Chu
Manage device；3rd, cover half.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing.
A kind of injection molding machine feeding control system, as depicted in figs. 1 and 2, including feeding mechanism 1 and control feeding mechanism 1
The injection control system 2 of work.
Wherein, feeding mechanism 1 includes base station 11, is arranged on the material feeding connecting above base station 11 and with 11 horizontal sliding of base station
Rifle 12 and the thermofusion device 13 for being arranged on above material feeding rifle 12 and being connected with 12 inside of material feeding rifle, wherein, the end of material feeding rifle 12
Portion and the cover half 3 for being arranged in injection molding machine, thermofusion device 13 are used to heat plastic grain into liquid plastic.
11 top of base station is fixedly installed a horizontal sliding slot 111, and fold forms limiting slot 112 to 111 both sides of sliding slot outward,
13 bottom of thermofusion device is provided with the L-type sliding block 13 with the sliding connection of limiting slot 112.Thermofusion device 13 passes through 13 He of L-type sliding block
Limiting slot 112 is connected with the sliding of base station 11, so as to which material feeding rifle 12 be driven to be connect with 11 horizontal sliding of base station.
The setting of 12 both sides of material feeding rifle there are two hydraulic cylinder 122, the both ends of hydraulic cylinder 122 respectively with material feeding rifle 12 and injection molding machine
Cover half 3 be fixedly connected, the length direction of the length direction and material feeding rifle 12 of hydraulic cylinder 122 is arranged in parallel.When hydraulic cylinder 122 is stretched
During contracting, material feeding rifle 12 and thermofusion device 13 can be driven to be slided along above-mentioned limiting slot 112.
Again as shown in Figure 3 and Figure 4, it is provided with horned dinosaur 121 in above-mentioned material feeding rifle 12, the hot melting plastic in material feeding rifle 12 passes through
Horned dinosaur 121 is filled into inside cover half 3.
As shown in Fig. 2, the back pressure for adjusting 122 hydraulic flow of hydraulic cylinder is provided in the oil circuit of above-mentioned hydraulic cylinder 122
Servo valve 123.Above-mentioned injection control system 2 includes back pressure detection module 21, model pre-input module 22 and central control module
23。
Back pressure detection module 21 includes being arranged on pressure sensor in material feeding rifle 12, is subject to for detecting material feeding rifle 12
Back pressure, and output back pressure detection signal in real time.
Model pre-input module 22, is set as computer, for inputting evil spirit information corresponding with treating injection model, and it is corresponding
Output model signal.The function of model pre-input module 22 with it is of the prior art can only engraving machine function it is identical, herein not
It repeats again.
Central control module 23, including the back pressure comparison module 231 being arranged in series and microprocessor 232, back pressure compares mould
Block 231 is set as comparator D1, the positive input coupling back pressure detection module 21 of comparator D1, the reversed input of comparator D1
End coupling model pre-input module 22, when back pressure detection signal is higher than default back pressure value, the output terminal output drop of comparator D1
Press signal.Microprocessor 232 couples model pre-input module 22 and comparator D1, when receiving buck signal, adjusts back pressure
The hydraulic flow of servo valve 123 so that the hydraulic flow of back pressure servo valve 123 the to be molded cross section current with treating injecting products
Product is directly proportional, so that while keeping the back pressure that material feeding rifle 12 is subject to constant, realizes to the micro- of 12 major ingredient speed of material feeding rifle
It adjusts.Herein, microprocessor 232 includes but not limited to microcontroller or PLC.Microprocessor 232 adjusts output and pre- injection model
The directly proportional current signal of cross-sectional area is common in the art so as to adjust the technology of 123 hydraulic flow of back pressure servo valve
Technological means, details are not described herein.
Further, it is additionally provided with back pressure value pre-input unit 221 in above-mentioned model pre-input module 22.Back pressure value is pre- defeated
Enter unit 221 for exporting above-mentioned default back pressure value.Back pressure value pre-input unit 221 includes but not limited to toggle switch, typewriting
Machine or touch screen preferably directly input default back pressure value by computer herein.Above-mentioned microprocessor 232 and model pre-input mould
Block 22 is communicated by USB.
By above said content it is found that when injection molding machine carries out injection work, back pressure detection module 21 can detect material feeding
Back pressure suffered by rifle 12, model pre-input module 22 can realize the output for the model information for treating injection model, so as to pass through
Central control module 23 realizes that the hydraulic flow of control back pressure servo valve 123 is directly proportional to the cross-sectional area for treating injection model.When
Material feeding rifle 12 away from cover half 3 move when, the hot melting plastic in thermofusion device 13 enters mold cavity by horned dinosaur 121, when treating
When injection model is in irregular shape, material feeding rifle 12 often moves identical distance, enters the amount difference of the plastics in mold cavity,
Since the hydraulic flow for realizing back pressure servo valve 123 is directly proportional to the cross-sectional area for treating injection model, realize to entering
The control of the amount of plastics in mold cavity so as to ensure that the pressure in mold cavity to a certain extent, improves injection
The product quality of production.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
It is all protected in the right of invention by Patent Law.
Claims (8)
1. a kind of injection molding machine feeding control system, the injection control to work including feeding mechanism (1) and control feeding mechanism (1)
System (2), it is characterised in that：The feeding mechanism (1) including base station (11), be arranged on above base station (11) and with base station (11)
The material feeding rifle (12) and be arranged on material feeding rifle (12) top and the hot melt with being connected inside material feeding rifle (12) that horizontal sliding connects
Device (13), the material feeding rifle (12) is interior to be coaxially arranged with horned dinosaur (121), and material feeding rifle (12) is fixedly installed and material feeding rifle (12)
The parallel hydraulic cylinder of length direction (122), hydraulic cylinder (122) other end are fixedly connected with cover half (3), the oil circuit of hydraulic cylinder (122)
In be provided with back pressure servo valve (123), the injection control system (2) includes：
Back pressure detection module (21) for detecting the back pressure suffered by material feeding rifle (12), and exports back pressure detection signal；
Model pre-input module (22), for inputting model information corresponding with treating injection model, and corresponding output model signal；
Central control module (23), coupling back pressure detection module (21) and model pre-input module (22), for receiving back pressure inspection
Signal and model signals are surveyed, and signal and the liquid of the model signals adjusting back pressure servo valve (123) are detected according to the back pressure
Press flow；
The hydraulic flow of the back pressure servo valve (123) is directly proportional to the cross-sectional area for treating injection model.
2. a kind of injection molding machine feeding control system according to claim 1, it is characterised in that：The hydraulic cylinder (122) sets
There are two putting.
3. a kind of injection molding machine feeding control system according to claim 1, it is characterised in that：Base station (11) upper surface
A horizontal sliding slot (111) is fixedly installed, the thermofusion device (13) is connected by the sliding slot (111) and base station (11) sliding
It connects.
4. a kind of injection molding machine feeding control system according to claim 3, it is characterised in that：Sliding slot (111) both sides
Fold forms limiting slot (112) outward, and the thermofusion device (13) is provided with the L-type with the limiting slot (112) sliding connection
Sliding block (13).
5. a kind of injection molding machine feeding control system according to claim 1, it is characterised in that：The model pre-input module
(22) it is set as computer.
6. a kind of injection molding machine feeding control system according to claim 5, it is characterised in that：The central control module
(23) including the back pressure comparison module (231) being arranged in series and microprocessor (232), back pressure comparison module (231) coupling
The back pressure detection module (21), when back pressure detection signal is higher than output buck signal, the microprocessor when presetting back pressure value
(232) the model pre-input module (22) is coupled, when receiving buck signal, adjusts the back pressure servo valve (123)
Hydraulic flow.
7. a kind of injection molding machine feeding control system according to claim 6, it is characterised in that：The computer is provided with back pressure
It is worth pre-input unit (221), the back pressure value pre-input unit (221) is for exporting the back pressure preset value.
8. a kind of injection molding machine feeding control system according to right will go 7, it is characterised in that：The microprocessor (232)
It communicates with the computer USB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810132484.3A CN108177312A (en) | 2018-02-09 | 2018-02-09 | A kind of injection molding machine feeding control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810132484.3A CN108177312A (en) | 2018-02-09 | 2018-02-09 | A kind of injection molding machine feeding control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108177312A true CN108177312A (en) | 2018-06-19 |
Family
ID=62552519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810132484.3A Pending CN108177312A (en) | 2018-02-09 | 2018-02-09 | A kind of injection molding machine feeding control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108177312A (en) |
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| US6241003B1 (en) * | 1998-11-02 | 2001-06-05 | Toshiba Kikai Kabushiki Kaisha | Injection control method and device of die-casting machine |
| JP2002113757A (en) * | 2000-10-06 | 2002-04-16 | Niigata Eng Co Ltd | Apparatus for injection feed and method for nozzle touch in motorized injection molding machine |
| JP2006062245A (en) * | 2004-08-27 | 2006-03-09 | Sumitomo Heavy Ind Ltd | Plasticizing moving device of electromotive injection molding machine and nozzle touch method |
| CN202016158U (en) * | 2011-02-28 | 2011-10-26 | 无锡威锐科智能测控技术有限公司 | Intelligent injection molding machine |
| CN102358019A (en) * | 2011-07-27 | 2012-02-22 | 深圳大学 | Double-servo control system and energy-saving injection molding machine comprising same |
| CN102672926A (en) * | 2011-03-11 | 2012-09-19 | 深圳领威科技有限公司 | Molten gel back pressure control system and method for electrically controlled injection molding machine |
| CN103286923A (en) * | 2012-03-02 | 2013-09-11 | 住友重机械工业株式会社 | Injection molding machine |
| CN104602891A (en) * | 2012-10-17 | 2015-05-06 | 三菱重工塑胶科技股份有限公司 | Mold-clamping device, injection-molding device, and method for opening and closing mold |
| CN105690692A (en) * | 2014-12-15 | 2016-06-22 | 株式会社名机制作所 | Control method of injection molding machine and injection molding machine |
| CN207972265U (en) * | 2018-02-09 | 2018-10-16 | 天津德迈特汽车零部件有限公司 | A kind of injection molding machine feeding control system |
-
2018
- 2018-02-09 CN CN201810132484.3A patent/CN108177312A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6241003B1 (en) * | 1998-11-02 | 2001-06-05 | Toshiba Kikai Kabushiki Kaisha | Injection control method and device of die-casting machine |
| JP2002113757A (en) * | 2000-10-06 | 2002-04-16 | Niigata Eng Co Ltd | Apparatus for injection feed and method for nozzle touch in motorized injection molding machine |
| JP2006062245A (en) * | 2004-08-27 | 2006-03-09 | Sumitomo Heavy Ind Ltd | Plasticizing moving device of electromotive injection molding machine and nozzle touch method |
| CN202016158U (en) * | 2011-02-28 | 2011-10-26 | 无锡威锐科智能测控技术有限公司 | Intelligent injection molding machine |
| CN102672926A (en) * | 2011-03-11 | 2012-09-19 | 深圳领威科技有限公司 | Molten gel back pressure control system and method for electrically controlled injection molding machine |
| CN102358019A (en) * | 2011-07-27 | 2012-02-22 | 深圳大学 | Double-servo control system and energy-saving injection molding machine comprising same |
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