CN101695864B - Electrohydraulic hybrid drive injection mechanism of injector and injection method thereof - Google Patents

Electrohydraulic hybrid drive injection mechanism of injector and injection method thereof Download PDF

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Publication number
CN101695864B
CN101695864B CN2009101532476A CN200910153247A CN101695864B CN 101695864 B CN101695864 B CN 101695864B CN 2009101532476 A CN2009101532476 A CN 2009101532476A CN 200910153247 A CN200910153247 A CN 200910153247A CN 101695864 B CN101695864 B CN 101695864B
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injection
motor
fixed
screw
seat
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CN101695864A (en
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郑建国
李立峰
张元海
魏建鸿
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TEDERIC Machinery Co.,Ltd.
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TEDERIC MACHINE MANUFACTURE (CHINA) CO Ltd
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Abstract

The invention relates to an injection unit of an injector and provides an electrohydraulic hybrid drive injection mechanism of the injector and an injection method thereof. The electrohydraulic hybrid drive injection mechanism comprises a preplasticized motor, a motor base, a drive shaft, an push base, an injection piston and an injection screw rod, wherein the preplasticized motor is fixed on the motor base and connected with the drive shaft through a spline; the drive shaft is connected with the injection piston; the injection piston is connected with the injection screw rod; and the preplasticized motor is arranged on a line with the injection screw rod and the drive shaft. The electrohydraulic hybrid drive injection mechanism also comprises an injection motor, an injection oil cylinder, a synchronous belt, ball screws and a screw nut, wherein the injection motor is fixed on the push base; the synchronous belt is fixed on the output shaft of the injection motor; the synchronous belt drives two driven wheels which are connected with a ball screw respectively; two ball screws are respectively fixed on the push base; the screw nut is fixed on a thrust bearing; the injection oil cylinder is fixed on the push base and connected with the injection piston. The power weight of the electric drive injection part is more than that of the hydraulic drive injection part.

Description

Electrohydraulic hybrid drive injection mechanism of injector and injecting method thereof
Technical field
The present invention relates to the injector injecting unit, be electrohydraulic hybrid drive injection mechanism of injector and injecting method thereof, answer electricity consumption liquid to mix control technology, to reach high accuracy, to reach purpose of energy saving at a high speed.
Background technology
Existing all kinds of electronic injector; Comprise that all-electric injector technology is tending towards ripe Japanese manufacturer; Still there are many weak points: at first because the bearing capacity of drive disk assembly (being mainly ball-screw) is limited; The speed of its transmission and power, and service life etc., the aspect can't compare favourably with full hydraulic drive, this also makes use cost very high.Next is energy-conservation aspect, as stated, because its speed and high-performance hydraulic injection machine have gap, considers the factor of production efficiency, uses for great majority, and its energy-saving effect is also not obvious.In addition; Because the problem on the structural design, most electronic injector also need move plasticizing and drive and drive disk assembly when drive screw is injected at present; Even the driver part of injection itself; Therefore the whole inertia of institute's moving-member of wanting is very big when injecting, and responds variation reduction injection precision thereby can cause like this, and energy consumption is increased to some extent.
For all-hydraulic injector; Reach high-precision high-speed, then need use expensive high-precision hydraulic element, and these high-precision hydraulic valves are very high to the cleannes requirement of hydraulic oil; Need often to change filter and regularly replace hydraulic oil, thereby cause energy waste and pollution problem.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of electrohydraulic hybrid drive injection mechanism of injector and injecting method thereof are provided.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions.
A kind of electrohydraulic hybrid drive injection mechanism of injector; Comprise preformed motor, motor seat, power transmission shaft, injection seat, thrust bearing, injection ram, injection screw; The preformed motor is fixed on the motor seat, is connected with power transmission shaft through spline, and power transmission shaft links to each other with injection ram; Injection ram links to each other with injection screw, and preformed motor and injection screw, power transmission shaft one line are arranged; Also comprise injecting motor, injection cylinder, synchronous band, ball-screw and feed screw nut; Injecting motor is fixed on the injection seat; Be fixed with synchronous band on its output shaft, band drives two driven pulleys synchronously, and two driven pulleys connect a ball-screw respectively; Two ball-screws are individually fixed on the injection seat, and feed screw nut is fixed on the thrust bearing; Fixing injection cylinder on the injection seat, injection cylinder links to each other with injection ram.
As a kind of improvement, said power transmission shaft is an apical axis.
A kind of injection mechanical electronic hydraulic combination drive injecting method; Injecting motor is fixed on the injection seat; Be fixed with a band synchronously on its output shaft, rotate synchronously through two driven pulleys of a band driving synchronously, two driven pulleys drive a ball-screw respectively and are rotated; Two ball-screws are individually fixed on the injection seat, will rotatablely move and be converted into rectilinear motion through being fixed on feed screw nut on the thrust bearing; Like this, injecting motor promotes thrust bearing through synchronous band and ball-screw transmission, and thrust bearing promotes the injection screw that injection ram and then promotion be connected on the injection ram again and injects;
Simultaneously, also fixed an injection cylinder on the injection seat, promoted injection ram through hydraulic oil and move, and then promoted injection screw so that auxiliary injection power to be provided;
Driven by power injection portion power weight is greater than the hydraulic-driven injection portion.
The present invention compared with prior art has the following advantages:
Mainly by motor as initiatively driving action of injection, and with hydraulic pressure as the driven auxiliary power that provides.Wherein the weight of electronic part is greater than hydraulic part; So just guarantee (to hope to inject when stopping under the limiting case when breaking down; Hydraulic part is still with full power output), electronic part has speed and the pressure that enough power and mechanical bearing capacity control to adjust injection process.The response time of and hydraulic part electronic through rational matching, with reach at a high speed, high pressure precision down controls and desirable energy-saving effect.
2. owing to plasticizing process on the technology is more much longer than the injection process time, the power of consumption is also big than injection, so adopt the rotation of motor direct-drive injection screw to plastify, reach remarkable energy saving effect, and precision gets a promotion also.
Description of drawings
Fig. 1 is an electrohydraulic hybrid drive injection mechanism of injector master TV structure sketch map in the specific embodiment;
Fig. 2 is an electrohydraulic hybrid drive injection mechanism of injector side-looking structural representation in the specific embodiment;
Fig. 3 be among Fig. 1 A-A to the structure cutaway view;
Fig. 4 be among Fig. 1 B-B to the structure cutaway view.
Among the figure: 1-preformed motor, 2-motor seat, the 3-apical axis, the 4-injection ram, the 5-injection screw, the 6-injection seat, the 7-injecting motor, the 8-injection cylinder, the 9-ball-screw, the 10-feed screw nut, the 11-thrust bearing, 12-is with synchronously, the 13-driven pulley.
The specific embodiment
In conjunction with accompanying drawing, further describe in the face of the present invention down.
Electrohydraulic hybrid drive injection mechanism of injector; Comprise preformed motor 1, motor seat 2, apical axis 3, injection seat 6, thrust bearing 11, injection ram 4, injection screw 5; Injecting motor 7, injection cylinder 8, be with 12 synchronously, ball-screw 9 and feed screw nut 10, preformed motor 1 is fixed on the motor seat 2, is connected with apical axis 3 through spline; Apical axis 3 transfers torque on the injection screw 5 that links to each other with injection ram 4 through injection ram 4 again, drives injection screw 5 rotations and plastifies.Preformed adopts preformed motor 1 and injection screw 5, apical axis 3 one lines to arrange, does not need to be with synchronously 12 transmissions.
Injecting motor 7 is fixed on the injection seat 6; Be fixed with one on its output shaft and be with 12 synchronously; Be with two driven pulleys 13 of 12 drivings to rotate synchronously synchronously through one; Two driven pulleys 13 drive a ball-screw 9 respectively and are rotated, and two ball-screws 9 are individually fixed on the injection seat 6, will rotatablely move and be converted into rectilinear motion through being fixed on feed screw nut 10 on the thrust bearing 11.Like this, injecting motor 7 is through being with 12 to promote thrust bearing 11 with ball-screw 9 transmissions synchronously, and thrust bearing 11 promotes injection ram 4 again and then promote to be connected on the injection ram 4 injection screw 5 to inject.
Simultaneously, also fixed an injection cylinder 8 on the injection seat 6, promoted injection ram 4 through hydraulic oil and move, and then promoted injection screw 5 so that auxiliary injection power to be provided.
Driven by power injection portion power weight is greater than the hydraulic-driven injection portion.
The present invention has following advantage:
1. utilize the high response speed of servomotor and the accurate location of positive drive thereof to reach High Accuracy Control to action of injection.
2. use hydraulic power as auxiliary, to reduce the load that electronic drive disk assembly is transmitted, reach all-electric high-speed, the high pressure that is difficult to realize, and effectively prolonged the service life of electronic drive disk assembly.
3. because preformed motor, injecting motor and drive disk assembly all do not move with action of injection, the inertia of therefore injecting time institute's moving-member reduces greatly.
4. electronic running part adopts two ball-screws, has reduced the load on the single leading screw, can prolong the service life of leading screw, improves the stability and the reliability of machine, reduces use cost.
5. compare with all-hydraulic machine, the consumption of its hydraulic oil significantly reduces, and the cooling water amount that is used for cooling off hydraulic oil also can significantly reduce, and has effectively alleviated pollution problems.
6. electronic owing to mainly using, and can have very high speed, so its energy-saving effect is particularly outstanding.
Therefore, outstanding feature of the present invention is: high-precision, at a high speed, high stability, energy-saving and environmental protection, and can obviously reduce manufacturing cost and use cost.
At last, it is also to be noted that what more than enumerate only is practical implementation example of the present invention, obviously, the invention is not restricted to above examples of implementation, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.

Claims (2)

1. inject mechanical electronic hydraulic combination drive injecting method for one kind; It uses a kind of injection mechanical electronic hydraulic hybrid drive, and said injection mechanical electronic hydraulic hybrid drive comprises preformed motor, motor seat, power transmission shaft, injection seat, thrust bearing, injection ram, injection screw, and the preformed motor is fixed on the motor seat; Be connected with power transmission shaft through spline; Power transmission shaft links to each other with injection ram, and injection ram links to each other with injection screw, and preformed motor and injection screw, power transmission shaft one line are arranged; Also comprise injecting motor, injection cylinder, synchronous band, ball-screw and feed screw nut; Injecting motor is fixed on the injection seat; Be fixed with synchronous band on its output shaft, band drives two driven pulleys synchronously, and two driven pulleys connect a ball-screw respectively; Two ball-screws are individually fixed on the injection seat, and feed screw nut is fixed on the thrust bearing; Fixing injection cylinder on the injection seat, injection cylinder links to each other with injection ram; It is characterized in that:
Injecting motor is fixed on the injection seat; Be fixed with a band synchronously on its output shaft; By two driven pulleys rotations of a band driving synchronously; Two driven pulleys drive a ball-screw respectively and are rotated; Two ball-screws are individually fixed on the injection seat, will rotatablely move and be converted into rectilinear motion by being fixed on feed screw nut on the thrust bearing; Like this, injecting motor promotes thrust bearing by synchronous band and ball-screw transmission, and thrust bearing promotes the injection screw that injection ram and then promotion be connected on the injection ram again and injects;
Simultaneously, also fixed an injection cylinder on the injection seat, promoted injection ram through hydraulic oil and move, and then promoted injection screw so that auxiliary injection power to be provided;
Driven by power injection portion power weight is greater than the hydraulic-driven injection portion.
2. injection mechanical electronic hydraulic combination drive injecting method according to claim 1 is characterized in that the power transmission shaft of said injection mechanical electronic hydraulic hybrid drive is an apical axis.
CN2009101532476A 2009-10-29 2009-10-29 Electrohydraulic hybrid drive injection mechanism of injector and injection method thereof Active CN101695864B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101532476A CN101695864B (en) 2009-10-29 2009-10-29 Electrohydraulic hybrid drive injection mechanism of injector and injection method thereof

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Application Number Priority Date Filing Date Title
CN2009101532476A CN101695864B (en) 2009-10-29 2009-10-29 Electrohydraulic hybrid drive injection mechanism of injector and injection method thereof

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CN101695864B true CN101695864B (en) 2012-05-30

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102058425B (en) * 2011-01-20 2012-12-26 邵卫星 Pyramidal remote control injecting device for cone
WO2012124199A1 (en) * 2011-03-14 2012-09-20 東洋機械金属株式会社 Vertical injection molding machine
JP5849105B2 (en) * 2012-01-12 2016-01-27 東洋機械金属株式会社 Injection molding machine
CN106248869A (en) * 2016-04-28 2016-12-21 深圳出入境检验检疫局食品检验检疫技术中心 A kind of liquid infusion shock machine being applied to dispersive liquid-liquid microextraction
WO2018218394A1 (en) * 2017-05-27 2018-12-06 苏州锦珂塑胶科技有限公司 High-performance electric injection molding device

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Owner name: TAIRUI MACHINE CO., LTD.

Free format text: FORMER NAME: TEDRIC MACHINERY MANUFACTURING (CHINA) CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: Hangzhou City, Zhejiang province 310018 Hangzhou economic and Technological Development Zone Beiyuan Industrial Zone

Patentee after: TEDERIC Machinery Co.,Ltd.

Address before: Hangzhou City, Zhejiang province 310018 Hangzhou economic and Technological Development Zone Beiyuan Industrial Zone

Patentee before: Tederic Machine Manufacture (China) Co., Ltd.