CN203031894U - Injection oil path with servo motor for injection molding machine - Google Patents

Injection oil path with servo motor for injection molding machine Download PDF

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Publication number
CN203031894U
CN203031894U CN 201320019094 CN201320019094U CN203031894U CN 203031894 U CN203031894 U CN 203031894U CN 201320019094 CN201320019094 CN 201320019094 CN 201320019094 U CN201320019094 U CN 201320019094U CN 203031894 U CN203031894 U CN 203031894U
Authority
CN
China
Prior art keywords
injection
oil path
servo motor
oil
pressure sensor
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.)
Expired - Fee Related
Application number
CN 201320019094
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Chinese (zh)
Inventor
周润晃
董钜潮
梁荣球
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Shunde Kaizhiwei Machinery Co. Ltd.
Original Assignee
GRANTWAY MACHINERY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GRANTWAY MACHINERY CO Ltd filed Critical GRANTWAY MACHINERY CO Ltd
Priority to CN 201320019094 priority Critical patent/CN203031894U/en
Application granted granted Critical
Publication of CN203031894U publication Critical patent/CN203031894U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an injection oil path with a servo motor for an injection molding machine. The injection oil path comprises an injection oil cylinder, a solenoid directional valve, an oil pump and an oil tank which are connected and matched with one another; preferably, the injection oil path also comprises a servo motor, a proportional overflow valve and a pressure sensor, wherein the servo motor is connected with the oil pump, and the proportional overflow valve is in serial connection with the pressure sensor and then is connected with the oil pump in parallel. The injection oil path can replace the traditional nitrogen injection to realize stable high-speed injection function, can be matched with the working condition of the injection molding machine automatically through automatic feedback of the pressure sensor and the self-adaptive function of the servo motor and effectively reduces the redundant power loss of the hydraulic system, thereby achieving good energy-saving effect; and furthermore, the injection oil path overcomes the defect that the traditional nitrogen injection has poor stability, is inconvenient in use and maintenance and has complex oil path; and the oil path is simplified and the installation and the maintenance are convenient.

Description

A kind of injection machine injection oil circuit that adopts servomotor
Technical field
The utility model relates to a kind of injection machine injection oil circuit, belongs to injection machine high speed injection technical field, refers in particular to a kind of injection machine injection oil circuit that adopts servomotor.
Background technology
Thin-wall product injection moulding all will be finished by the injection machine of band high speed injection function.At present, the nitrogen accumulation of energy injection technology (calling " nitrogen injection " in the following text) of the more use asynchronous machine of injection machine and constant displacement pump (or variable pump) combination realizes the high speed injection function on the market." nitrogen injection " is though technology can be saved power section (as oil pump and motor) cost, but there is the oil circuit complexity, it is convenient inadequately to use with maintenance, fatal shortcoming such as the not high and pressure stability of injection terminal point repeatable accuracy is relatively poor, be difficult to realize real stable high speed injection function, be difficult to large tracts of land more and promote and popularize.On the other hand, along with the rise of " all electric " injection machine, and the servomotor technology is increasingly mature and be widely used on the injection machine " nitrogen injection " existing trend that is eliminated gradually.
The utility model content
The purpose of this utility model is to overcome shortcoming of the prior art with not enough, a kind of injection machine injection oil circuit that adopts servomotor is provided, for high speed and precision injection machine manufacturing field provide a kind of energy-efficient, cost performance is high, be easier to realize stablizing the injection machine injection scheme of high speed injection.
To achieve these goals, the utility model is realized according to following technical scheme:
A kind of injection machine injection oil circuit that adopts servomotor includes the injection oil cylinder, electromagnetic direction valve, oil pump and the fuel tank that connect cooperation; Preferably, also include servomotor, proportional pressure control valve and pressure sensor, wherein, described servomotor is connected with oil pump, and is in parallel with oil pump again after described proportional pressure control valve and the pressure sensor serial connection.By the electromagnetic direction valve change action, realize the control to the injection cylinder action; And proportional pressure control valve can be controlled the pressure of hydraulic system, and pressure sensor feedback hydraulic system pressure gives servomotor, thus output pressure and the flow of control oil pump; Simultaneously, control by computer programming, the pressure that the aforementioned proportion overflow valve is controlled before the injection in advance arrives setting value, after switching, carries out electromagnetic direction valve the injection action immediately, further shortened the injection machine injection response time, at this moment, the response speed of electromagnetic direction valve is exactly the response speed of injection, thereby has promoted the injection acceleration of injection machine to greatest extent.
The utility model compared with prior art, its beneficial effect is:
The alternative tradition of the utility model " nitrogen injection ", realize stable high speed injection function, by the automatic feedback of pressure sensor and the adaptation function of servomotor, automatic and injection machine operating mode coupling, effectively reduce the hydraulic system redundant power loss, reach energy-conservation effect; Simultaneously, the utility model has overcome tradition " nitrogen injection " poor stability, has used and keeped in repair the shortcoming of inconvenience and oil circuit complexity, has simplified oil circuit, is convenient to I﹠M.
In order to understand the utility model more clearly, set forth the specific embodiment of the present utility model below with reference to description of drawings.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, the injection machine injection oil circuit of employing servomotor described in the utility model includes the injection oil cylinder 1, electromagnetic direction valve 2, oil pump 3 and the fuel tank 4 that connect cooperation; Preferably, also include servomotor 5, proportional pressure control valve 6 and pressure sensor 7, wherein, described servomotor 5 is connected with oil pump 3, and is in parallel with oil pump 3 again after described proportional pressure control valve 6 and pressure sensor 7 serial connections.
By electromagnetic direction valve 2 change actions, realize the control to 1 action of injection oil cylinder; And proportional pressure control valve 6 can be controlled the pressure of hydraulic system, and pressure sensor 7 feedback hydraulic system pressures give servomotor 5, thus output pressure and the flow of control oil pump 3; Simultaneously, control by computer programming, the pressure that aforementioned proportion overflow valve 6 is controlled before the injection in advance arrives setting value, after switching, carries out electromagnetic direction valve 2 the injection action immediately, further shortened the injection machine injection response time, at this moment, the response speed of electromagnetic direction valve 2 is exactly the response speed of injection, thereby has promoted the injection acceleration of injection machine to greatest extent.
The utility model is not limited to above-mentioned embodiment, if various changes of the present utility model or modification are not broken away from spirit and scope of the present utility model, if these are changed and modification belongs within claim of the present utility model and the equivalent technologies scope, then the utility model also is intended to comprise these changes and modification.

Claims (1)

1. injection machine injection oil circuit that adopts servomotor, include and connect injection oil cylinder, electromagnetic direction valve, oil pump and the fuel tank that cooperates, it is characterized in that: also include servomotor, proportional pressure control valve and pressure sensor, wherein, described servomotor is connected with oil pump, and is in parallel with oil pump again after described proportional pressure control valve and the pressure sensor serial connection.
CN 201320019094 2013-01-14 2013-01-14 Injection oil path with servo motor for injection molding machine Expired - Fee Related CN203031894U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320019094 CN203031894U (en) 2013-01-14 2013-01-14 Injection oil path with servo motor for injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320019094 CN203031894U (en) 2013-01-14 2013-01-14 Injection oil path with servo motor for injection molding machine

Publications (1)

Publication Number Publication Date
CN203031894U true CN203031894U (en) 2013-07-03

Family

ID=48684034

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320019094 Expired - Fee Related CN203031894U (en) 2013-01-14 2013-01-14 Injection oil path with servo motor for injection molding machine

Country Status (1)

Country Link
CN (1) CN203031894U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107269909A (en) * 2017-06-04 2017-10-20 杨峥雄 A kind of quickly opening and closing AB valves and control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107269909A (en) * 2017-06-04 2017-10-20 杨峥雄 A kind of quickly opening and closing AB valves and control method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20150821

Address after: 528000 Guangdong Province, Foshan city Shunde District Lunjiao Industrial Road No. 3, teach two

Patentee after: Guangdong Shunde Kaizhiwei Machinery Co. Ltd.

Address before: 528308 Guangdong Province, Foshan city Shunde District Lunjiao street community residents often teach Industrial Road No. 3

Patentee before: Grantway Machinery Co., Ltd.

C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: GUANGDONG SHUNDE ZHIWEI MACHINERY CO., LTD.

Free format text: FORMER OWNER: GRANTWAY MACHINERY CO., LTD., SHUNDE DISTRICT, FOSHAN CITY

Effective date: 20150821

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130703

Termination date: 20170114