CN109624254A - A kind of high response injection molding machine servo pumping cylinder injecting systems - Google Patents
A kind of high response injection molding machine servo pumping cylinder injecting systems Download PDFInfo
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- CN109624254A CN109624254A CN201910023086.2A CN201910023086A CN109624254A CN 109624254 A CN109624254 A CN 109624254A CN 201910023086 A CN201910023086 A CN 201910023086A CN 109624254 A CN109624254 A CN 109624254A
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- valve plate
- mouth
- oil
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- servopump
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention proposes a kind of high response injection molding machine servo pumping cylinder injecting systems, including fuel tank, motor pump component, control valve plate and injection cylinder etc..Wherein motor pump component is made of servo motor, shaft coupling, servopump, filter and cooler；Control valve plate is made of two four-way electromagnetic reversing valves, three-position four-way electromagnetic directional valve, check valve, overflow valve, pressure gauge, proportioning valve and two-way quantitative servopump etc..Servo motor is connect by shaft coupling with servopump, and high pressure liquid pressure oil enters the oil inlet of servopump by filter from fuel tank；The oil outlet of servopump is connect with the P2 mouth of control valve plate, and the T mouth for controlling valve plate is connect through subcooler with fuel tank, and the S mouth for controlling valve plate is connect by filter with fuel tank；Control the P1 mouth installation pressure gauge of valve plate；The B2 mouth of control valve plate is connect with the left chamber of injection cylinder, and the A1 mouth for controlling valve plate is connect with the right chamber of injection cylinder；B1 and T1 mouthful connections of the oil inlet and outlet of oil motor respectively at control valve plate.
Description
Technical field
The invention belongs to injection molding technology fields, and in particular to a kind of high response injection molding machine servopump driving hydraulic cylinder
System.
Background technique
Currently, injection molding machine is divided from dynamical system can be divided into hydraulic injection molding machine and full electric injection molding machine, and hydraulic injection molding machine
Again the most extensive with servopump technical application, principle is instruction and loading condition of the servo motor dragging oil pump according to controller
Pressure oil output, and pressure oil again by longer fluid pressure line be delivered directly to hydraulic cylinder or control element arrive again hydraulic cylinder come
The each movement for realizing injection molding machine can cause because it will pass through longer fluid pressure line along stroke pressure loss and additional pipe
The shortcomings that road filling time, hydraulic injection molding machine is that action response is slow, can not be competent at the injection molding operating condition of the high response of high speed, another
Kind full electric injection molding machine, principle is each movement that servo motor directly drives injection molding machine by ball-screw, due to being
Full mechanical connection, action response is fast, and precision is high, the disadvantage is that service life is short, equipment price is expensive, it is Normal hydraulic injection molding
3 times or more of machine, and requirement to equipment and later period maintenance cost are also very high.
Summary of the invention
To solve existing hydraulic injection molding machine injecting systems in actual industrial production, response speed is slow, and pipeline is long, and there are edges
The problems such as stroke pressure loses.
In order to achieve the above object, the present invention proposes a kind of high response injection molding machine servo pumping cylinder injecting systems, including fuel tank, electricity
Machine oil pump assembly, control valve plate and injection cylinder etc..Wherein motor pump component is by servo motor, shaft coupling, servopump, filtering
Device and cooler composition；Control valve plate by two four-way electromagnetic reversing valves, three-position four-way electromagnetic directional valve, check valve, overflow valve,
The composition such as pressure gauge, proportioning valve and two-way quantitative servopump.Servo motor is connect by shaft coupling with servopump, high pressure liquid pressure oil
Enter the oil inlet of servopump from fuel tank by filter；The oil outlet of servopump is connect with the P2 mouth of control valve plate, control valve
The T mouth of plate is connect through subcooler with fuel tank, and the S mouth for controlling valve plate is connect by filter with fuel tank；Control the P1 mouth of valve plate
Pressure gauge is installed；The B2 mouth of control valve plate is connect with the left chamber of injection cylinder, controls the right chamber of the A1 mouth and injection cylinder of valve plate
Connection；B1 and T1 mouthful connections of the oil inlet and outlet of oil motor respectively at control valve plate.
A kind of high response injection molding machine servo pumping cylinder injecting systems as described above, it is characterised in that the oil inlet is equipped with
Filter；
A kind of high response injection molding machine servo pumping cylinder injecting systems as described above, it is characterised in that the filter can be self-styled
Formula magnetism oil absorption filter or common oil absorption filter；
A kind of high response injection molding machine servo pumping cylinder injecting systems as described above, it is characterised in that the oil return line and fuel tank it
Between cooler is set；
A kind of high response injection molding machine servo pumping cylinder injecting systems as described above, it is characterised in that the cooler type of cooling
It can be air-cooled, water cooling or any type of cooling of suitable this system；
A kind of high response injection molding machine servo pumping cylinder injecting systems as described above, it is characterised in that the servo oil pump component is logical
Control valve plate is crossed to be mounted on hydraulic cylinder；
A kind of high response injection molding machine servo pumping cylinder injecting systems as described above, it is characterised in that the fuel tank internal can be set
Pressure charging system is set, the generation of suck-back phenomenon is prevented.
The invention has the advantages that apparatus structure is simple, and it is easy to operate, two-way quantitative servopump is passed through into one piece of control
Valve plate is directly installed on injection cylinder, avoids the pressure loss and sound brought by the interminable fluid pressure line of former hydraulic injection molding machine
The lag answered, creative solves the slow disadvantage of injection molding machine response speed, improves the response speed of adapted to injection system, reduces
It is lost along stroke pressure.
Detailed description of the invention
Fig. 1 is a kind of high response injection molding machine servo pumping cylinder injecting systems schematic diagram of the present invention.
In figure: 1. injection cylinder, 2. oil motor, 3. check valve, 4. three-position four-way electromagnetic directional valve, 5. two four-way electromagnetics
6. proportioning valve of reversal valve, 7. pressure gauge 8. controls 9. overflow valve of valve plate, 10. pressure sensor, 11. servo motor 12.
16. filter of axis device 13. two-way quantitative servopump, 14. servopump, 15. cooler, 17. fuel tank.
Specific embodiment
Below in conjunction with attached drawing to a kind of embodiment party of high response injection molding machine servo pumping cylinder injecting systems provided by the invention
Formula is further elaborated, and is mainly made of fuel tank 17, motor pump component, control valve plate 8 and oil cylinder 1 etc..Wherein dynamo oil
Pump assembly is made of servo motor 11, shaft coupling 12, servopump 14 and filter 16；Valve plate 8 is controlled by 3, three four, check valve
Electric change valve 4, two four-way electromagnetic reversing valves 5, proportioning valve 6, pressure gauge 7, overflow valve 9, two-way quantitative servopumps 13 etc.
Composition.Servo motor 11 is connect by shaft coupling 12 with servopump 14, and high pressure liquid pressure oil is entered by filter 16 from fuel tank 17
The oil inlet of servopump 14；The oil outlet of servopump 14 is connect with the P2 mouth of control valve plate 8, and the T mouth of control valve plate 8 passes through cooling
Device 15 is connect with fuel tank 17, and the S mouth of control valve plate 8 is connect by filter 16 with fuel tank 17；The P1 mouth for controlling valve plate 8 installs pressure
Power table 7；The B2 mouth of control valve plate 8 is connect with the left chamber of injection cylinder 1, and the right chamber of the A1 mouth and injection cylinder 1 that control valve plate 8 connects
It connects；The oil inlet and outlet of oil motor 2 is connect with B1 and T1 mouthfuls of control valve plate 8 respectively.
The P mouth of two four-way electromagnetic reversing valve V1 is connect with the P of two four-way electromagnetic reversing valve V2 mouth；Two four-way electromagnetics
The T mouth of reversal valve V1 is connect with the T mouth of control valve plate 8；The B2 mouth of the B mouth of two four-way electromagnetic reversing valve V1 and control valve plate 8
Connection；The A mouth of two four-way electromagnetic reversing valve V2 is connect by check valve V3 with the P of three-position four-way electromagnetic directional valve V4 mouth, double
It is connect to the oil inlet of quantitative servopump 13 by filter 16 with fuel tank 17；The oil outlet of two-way quantitative servopump 13 and three
The P mouth of four-way electromagnetic reversing valve V4 connects, and simultaneously bi-directionally quantitatively the oil outlet of servopump 13 passes through overflow valve V7 and check valve V8
Connection, the T mouth by controlling valve plate 8 return to fuel tank 17；The A1 that the A mouth of three-position four-way electromagnetic directional valve V4 passes through control valve plate 7
Mouth is connect with the right chamber of hydraulic injection cylinder 1；The B mouth of three-position four-way electromagnetic directional valve V4 by check valve V5 and oil motor 2 into
Hydraulic fluid port connection；The T mouth of three-position four-way electromagnetic directional valve V4 is connect with two four-way electromagnetic reversing valve V6 and proportioning valve 6 respectively, and
Fuel tank 17 is returned to by the T mouth and cooler 15 of control valve plate 5 by check valve V8 in the oil outlet connection of oil motor 2.
The operation principle of the present invention is that: when three-position four-way electromagnetic directional valve V4 be in middle position, electromagnet YA1, YA2 must not electricity
When, pressure release is carried out to servopump 14 and two-way quantitative servopump 13 respectively, high pressure oil passes through overflow valve V7, check valve V8, cooling
Device 15 returns to fuel tank 17.
Slow injection: when electromagnet YA1 must not be electric, when YA2, YA4 obtain electric, the high pressure oil that servopump 13 exports passes through three
Four-way electromagnetic reversing valve V4 enters injection cylinder right chamber, and left chamber oil liquid passes through the right position of two four-way electromagnetic reversing valve V1, cooling
15 oil return box 17 of device, injection cylinder piston driving screw rod realize slow injection.
Fast injection: when injection cylinder touches slow end travel switch, YA1, YA2 must not be electric, and YA4 obtains electric, servopump
The high pressure oil that the high pressure oil of 13 outputs is exported by two four-way electromagnetic reversing valve V2, check valve V3 and two-way quantitative servopump 12
Merge, enters injection cylinder right chamber through three-position four-way electromagnetic directional valve V4, left chamber oil liquid passes through two four-way electromagnetic reversing valve V1
Right position, 15 oil return box 17 of cooler, injection cylinder piston driving screw rod realize fast injection.
Storing: when electromagnet YA1, YA2 must not be electric, when YA3 obtains electric, the high pressure oil that two-way quantitative servopump 13 exports is passed through
Three-position four-way electromagnetic directional valve V4, check valve V5 are crossed, into oil motor 2.The melting material pressure of screw head forces injection oil at this time
Cylinder 1 retreats, and the hydraulic oil of 1 right chamber of injection cylinder passes through three-position four-way valve V4, proportioning valve 6, check valve V8,15 oil return box of cooler
17.Storing magnitude of back pressure can be regulated and controled by proportioning valve 6.
Pine moves back: when injection cylinder piston, which is retracted, touches travel switch, electromagnet YA1, YA3, YA5 obtain electric, and YA2 must not
Electricity, the high pressure oil that servopump 14 exports enter the left chamber of injection cylinder 1, injection cylinder 1 by two four-way electromagnetic reversing valve V1
The hydraulic oil of right chamber passes through three-position four-way electromagnetic directional valve V4, two position four-way solenoid valve V6, check valve V8,15 oil return box of cooler
17。
The above is specific equipment and process condition of the invention, and each figure is cooperated to be explained.But the present invention is not
It is confined to above-described specific equipment and technical process, it is any based on above-mentioned described for relevant device modifications or substitutions,
It is any based on the above-mentioned described local directed complete set for related process, as long as being belonged within the scope of realm of spirit of the invention
The present invention.
Claims (7)
1. a kind of high response injection molding machine servo pumping cylinder injecting systems, it is characterised in that: including fuel tank, motor pump component, control
Valve plate and injection cylinder, the motor pump component are made of servo motor, shaft coupling, servopump, filter and cooler；
The control valve plate is by two four-way electromagnetic reversing valves, three-position four-way electromagnetic directional valve, check valve, overflow valve, pressure gauge, institute
Proportioning valve and two-way quantitative the servopump composition stated；Servo motor is connect by shaft coupling with servopump, and high pressure liquid pressure oil passes through
Filter enters the oil inlet of servopump from fuel tank；The oil outlet of the servopump is connect with the P2 mouth of control valve plate, described
The T mouth of control valve plate connect through subcooler with fuel tank, the S mouth of the control valve plate is connect by filter with fuel tank；
Control the P1 mouth installation pressure gauge of valve plate；The B2 mouth of the control valve plate is connect with the left chamber of injection cylinder, the control
The A1 mouth of valve plate is connect with the right chamber of injection cylinder；The oil inlet and outlet of the oil motor is respectively at control B1 and T1 mouthfuls of valve plate
Connection.
2. a kind of high response injection molding machine servo pumping cylinder injecting systems according to claim 1, it is characterised in that it is described into
Hydraulic fluid port is equipped with filter.
3. a kind of high response injection molding machine servo pumping cylinder injecting systems according to claim 1, it is characterised in that the mistake
Filter can be with self-sealed magnetic oil absorption filter or common oil absorption filter.
4. a kind of high response injection molding machine servo pumping cylinder injecting systems according to claim 1, it is characterised in that described returns
Cooler is set between oil circuit and fuel tank.
5. a kind of high response injection molding machine servo pumping cylinder injecting systems according to claim 1, it is characterised in that described is cold
But the device type of cooling can be air-cooled, water cooling or any type of cooling of suitable this system.
6. a kind of high response injection molding machine servo pumping cylinder injecting systems according to claim 1, it is characterised in that described watches
It takes oil pump component and is mounted on hydraulic cylinder by controlling valve plate.
7. a kind of high response injection molding machine servo pumping cylinder injecting systems according to claim 1, it is characterised in that the oil
Pressure charging system can be set inside case, prevent the generation of suck-back phenomenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910023086.2A CN109624254B (en) | 2019-01-10 | 2019-01-10 | High-response injection molding machine servo pump cylinder injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910023086.2A CN109624254B (en) | 2019-01-10 | 2019-01-10 | High-response injection molding machine servo pump cylinder injection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109624254A true CN109624254A (en) | 2019-04-16 |
| CN109624254B CN109624254B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910023086.2A Active CN109624254B (en) | 2019-01-10 | 2019-01-10 | High-response injection molding machine servo pump cylinder injection system |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111204019A (en) * | 2020-02-27 | 2020-05-29 | 丰铁机械(苏州)有限公司 | Storage balance oil way of vertical injection molding machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259427A (en) * | 1998-10-16 | 2000-07-12 | 哈斯凯注塑***有限公司 | Intelligent type hydraulic valve oil distributor used for injection molding machine, and method therefor |
| US20150316077A1 (en) * | 2012-12-07 | 2015-11-05 | Arburg Gmbh + Co. Kg | Method for operating a hydraulic device with pump and servomotor, and associated hydraulic device |
| CN106194867A (en) * | 2016-08-31 | 2016-12-07 | 湖南华强电气股份有限公司 | A kind of hydraulic system and mould |
| CN206186303U (en) * | 2016-11-23 | 2017-05-24 | 天津颐和中威精密机器有限公司 | Hydraulic circuit of injection molding machine |
| CN108386398A (en) * | 2018-05-09 | 2018-08-10 | 登派液压技术（上海）有限公司 | A kind of compound hydraulic cylinder position control pump control hydraulic system |
-
2019
- 2019-01-10 CN CN201910023086.2A patent/CN109624254B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259427A (en) * | 1998-10-16 | 2000-07-12 | 哈斯凯注塑***有限公司 | Intelligent type hydraulic valve oil distributor used for injection molding machine, and method therefor |
| US20150316077A1 (en) * | 2012-12-07 | 2015-11-05 | Arburg Gmbh + Co. Kg | Method for operating a hydraulic device with pump and servomotor, and associated hydraulic device |
| CN106194867A (en) * | 2016-08-31 | 2016-12-07 | 湖南华强电气股份有限公司 | A kind of hydraulic system and mould |
| CN206186303U (en) * | 2016-11-23 | 2017-05-24 | 天津颐和中威精密机器有限公司 | Hydraulic circuit of injection molding machine |
| CN108386398A (en) * | 2018-05-09 | 2018-08-10 | 登派液压技术（上海）有限公司 | A kind of compound hydraulic cylinder position control pump control hydraulic system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111204019A (en) * | 2020-02-27 | 2020-05-29 | 丰铁机械(苏州)有限公司 | Storage balance oil way of vertical injection molding machine |
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| CN109624254B (en) | 2021-06-29 |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Binbin Inventor after: Jin Liang Inventor after: Zhang Taotao Inventor after: Wei Jianhong Inventor after: Chu Nengkui Inventor after: Yao Lixian Inventor after: Lu Chenfeng Inventor after: Zhou Hongwei Inventor after: Sun Jun Inventor after: Rao Zhong Inventor before: Li Binbin Inventor before: Lu Yunjie Inventor before: Zhang Taotao Inventor before: Wei Jianhong Inventor before: Zhang Jinrong Inventor before: Yao Lixian Inventor before: Lu Chenfeng Inventor before: Zhou Hongwei Inventor before: Sun Jun Inventor before: Rao Zhong |
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