CN101453145A - Electric pushing device - Google Patents

Electric pushing device Download PDF

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Publication number
CN101453145A
CN101453145A CNA2007101645738A CN200710164573A CN101453145A CN 101453145 A CN101453145 A CN 101453145A CN A2007101645738 A CNA2007101645738 A CN A2007101645738A CN 200710164573 A CN200710164573 A CN 200710164573A CN 101453145 A CN101453145 A CN 101453145A
Authority
CN
China
Prior art keywords
screw mandrel
pedestal
nut
permanent magnet
external rotor
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
Application number
CNA2007101645738A
Other languages
Chinese (zh)
Inventor
韩志翔
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.)
Union Plastic Hangzhou Machinery Co Ltd
Original Assignee
Union Plastic Hangzhou 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 Union Plastic Hangzhou Machinery Co Ltd filed Critical Union Plastic Hangzhou Machinery Co Ltd
Priority to CNA2007101645738A priority Critical patent/CN101453145A/en
Publication of CN101453145A publication Critical patent/CN101453145A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20Screw mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/64Mould opening, closing or clamping devices
    • B29C45/66Mould opening, closing or clamping devices mechanical
    • B29C45/661Mould opening, closing or clamping devices mechanical using a toggle mechanism for mould clamping
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20Screw mechanisms
    • F16H2025/2062Arrangements for driving the actuator
    • F16H2025/2075Coaxial drive motors
    • F16H2025/2078Coaxial drive motors the rotor being integrated with the nut or screw body

Abstract

The invention relates to an electric pushing device. The electric pushing device comprises a pedestal; a screw rod is inserted in the pedestal; the device also comprises a screw rod and a nut which are engaged with each other; the front end of the screw rod is the pushing end; the pedestal is connected with an outer rotor permanent magnetic servo motor; and the nut is fixed on a rotor of the outer rotor permanent magnetic servo motor. The electric pushing device has the advantages of energy conservation and high precision.

Description

Electric pushing device
(1) technical field
The present invention relates to employed electric pushing device on a kind of engineering machinery, for example injection molding machine, the employed thrustor of jack.
(2) background technology
The thrustor of existing injection molding machine mostly is the hydraulic lock mold mechanism, adopts hydraulic jack to promote mechanical mechanism, finishes the folding of mould.
Also there is electric pushing device to be applied on the injection molding machine as shown in Figure 1; the rod hinge connection of exterior sheathing and matched moulds mechanical mechanism is provided with nut on rear pattern plate, screw mandrel cooperates with this nut; the screw mandrel front end connects the matched moulds mechanical mechanism, the rear end of screw mandrel by pulley mechanism by driven by motor.Screw mandrel is in rotary course, and because of the promotion of nut, generation is advanced or retreated, and drives matched moulds machinery mechanism action.The shortcoming of this electric pushing device is: to the structure more complicated of the running part of screw mandrel, need be to the screw mandrel transfer torque in the motion, and this will open long keyway, and caused friction consumes very big; Secondly, the belt pulley kind of drive unavoidably has skidding, is unfavorable for the accurate control of pushing tow process; Once more, the transmission mechanism bulky complex, compact inadequately, multistage transmission causes that on the contrary energy efficiency reduces.
The version of another kind of electric pushing device is as shown in Figure 2: the rod hinge connection of rear pattern plate and matched moulds mechanical mechanism; on the matched moulds mechanical mechanism, nut is installed; the screw mandrel that is arranged on the rear pattern plate cooperates with this nut, screw mandrel by pulley transmission mechanism by motor drives.Nut is advanced and retreat on screw mandrel when screw mandrel rotates, and drives matched moulds mechanical mechanism die sinking or matched moulds.Its shortcoming is that screw mandrel maintains static, and influences die sinking.For matched moulds need keep equivalent length with screw mandrel, and mechanical mechanism retreats when die sinking, and easy and screw mandrel front end is conflicted, and opening stroke is restricted, can not do big part goods.In addition, transmission mechanism complexity, energy consumption shortcoming big, that the pushing tow accuracy is poor, the life-span is short exists too.
(3) summary of the invention
The present invention will solve that existing electric mode locking device mechanism complexity, efficiency are low, the shortcoming of accuracy difference, a kind of compact conformation is provided, helps accurately control and the high electric pushing device of efficiency.
Electric pushing device of the present invention comprises pedestal, screw mandrel is located on the pedestal, also comprise intermeshing screw mandrel and nut, the screw mandrel front end is a pushing end, it is characterized in that: connect an external rotor permanent magnet formula servomotor on the pedestal, described nut is fixed on the rotor of external rotor permanent magnet formula servomotor.
Further, the rotor of described external rotor permanent magnet formula servomotor is arranged on the pedestal by taper roll bearing, the rotor of external rotor permanent magnet formula servomotor and described nut, screw mandrel coaxial arrangement, the stator of external rotor permanent magnet formula servomotor connects housing, and housing connects described pedestal.
When external rotor permanent magnet formula servomotor energising rotation, the nut rotation, the driving screw mandrel advances or retreats, and finishes the pushing tow action.
Compact conformation of the present invention, easy, nut directly is connected with motor, has avoided the how caused energy loss of gear stage, improves Energy Efficiency Ratio, also helps the accurate control of pushing tow process.
Advantage of the present invention is: compact conformation, easy, and the Energy Efficiency Ratio height, mould-closing stroke control is accurately.
(4) description of drawings
Fig. 1 is the structure chart of existing electric pushing device.
Fig. 2 is the structure chart of another existing electric pushing device.
Fig. 3 is that the present invention is applied in the structural representation on the injection molding machine.
Fig. 4 is that the present invention is applied in the structural representation on the jack.
(5) embodiment
Embodiment one
With reference to Fig. 3
Present embodiment is the example of the present invention when being applied to electric mode locking device on the injection molding machine.
Electric pushing device of the present invention comprises pedestal, screw mandrel passes and is located on the pedestal, also comprises intermeshing screw mandrel and nut, and the screw mandrel front end is a pushing end, connect an external rotor permanent magnet formula servomotor on the pedestal, described nut is fixed on the rotor of external rotor permanent magnet formula servomotor.
The rotor of described external rotor permanent magnet formula servomotor is arranged on the pedestal by taper roll bearing, the rotor of external rotor permanent magnet formula servomotor and described nut, screw mandrel coaxial arrangement, the stator of external rotor permanent magnet formula servomotor connects housing, and housing connects described pedestal.
The present invention is applied on the electric mode locking device in the present embodiment, and rear pattern plate 10 is pedestals.This electric mode locking device comprises the matched moulds mechanical mechanism, the front template 16 that described matched moulds mechanical mechanism comprises rear pattern plate 10, is used to that the moving die plate 15 of dynamic model 17 is installed and cover half 18 is installed, and described moving die plate 15 can close up relatively and separate with front template 16.Screw mandrel 8 is arranged on the described rear pattern plate 10, the screw mandrel 8 anterior cross car walls 14 that connect described matched moulds mechanical mechanism.
External rotor permanent magnet formula servomotor is housed on the rear pattern plate 10, and the rotor 3 of described external rotor permanent magnet formula servomotor connects and described screw mandrel 8 nut engaged 9.Screw mandrel 8 adopts ball screw, and nut 9 adopts ball nut.
The rotor 3 of described external rotor permanent magnet formula servomotor is arranged on the rear pattern plate 10 by taper roll bearing 2, the rotor 3 of external rotor permanent magnet formula servomotor and described nut 9, screw mandrel 8 coaxial arrangement, the stator 6 of external rotor permanent magnet formula servomotor connects shell 7, and shell 7 connects described rear pattern plate 10.
Magnet 4 is housed on the rotor 3, is wound with coil 5 on the stator 6 of silicon steel sheet material.The bearing pedestal 1 that is used to install taper roll bearing 2 is fixed on rear pattern plate 10.
Rear pattern plate 10, moving die plate 15 and front template 16 all are enclosed within on the girt.
Described matched moulds mechanical mechanism is a crank connecting rod mechanism; the rear end of the bent hand 11 of the hinged symmetrically up and down a pair of elbow of rear pattern plate 10; the front end of the bent hand 11 of elbow is simultaneously hinged with the rear end of bent hand small rod 12 and bent hand big connecting rod 13; the other end of two bent hand small rods 12 is hinged on cross car wall 14 two ends symmetrically, and the front end of two bent hand big connecting rods 13 is hinged on moving die plate 15 upper and lower sides symmetrically.
Rotor 3 is fixed together with ball screw nut 9, on the locked mode motor is logical during positive electricity, sees that from motor shaft end rotor makes clockwise direction and rotate, and because of 9 of feed screw nuts rotate, screw mandrel 8 is done translation, and at this moment screw mandrel 8 will stretch out from axle head.Screw mandrel 8 is to do translation with cross car wall 14, and this moment, cross car wall 14 was done the action that translation produces clamping mold 17,18 by crank connecting rod mechanism drive movable form 15 along pull bar 19; Rotor is done and is counterclockwise rotated (from motor shaft end) when negative electricity on the locked mode motor is logical.Screw mandrel 8 will be from the motor shaft end retraction, and screw mandrel drives cross car wall 14 and does translation, and cross car wall drove template 15 by crank connecting rod mechanism and did translation along pull bar 19 and produce the action of opening mould 17,18 this moment.
Screw mandrel driving mechanism compactness of the present invention, easy, nut directly is connected with external rotor permanent magnet formula servomotor, has avoided the how caused energy loss of gear stage, improves Energy Efficiency Ratio, also helps the accurate control of screw rod process.
Embodiment two
With reference to Fig. 5,6:
Present embodiment is that applied field is different with the difference of embodiment one, and present embodiment is that the present invention is applied in the example on the jack.
Electric pushing device of the present invention comprises pedestal, screw mandrel passes and is located on the pedestal, also comprises intermeshing screw mandrel and nut, and the screw mandrel front end is a pushing end, connect an external rotor permanent magnet formula servomotor on the pedestal, described nut is fixed on the rotor of external rotor permanent magnet formula servomotor.
The rotor of described external rotor permanent magnet formula servomotor is arranged on the pedestal by taper roll bearing, the rotor of external rotor permanent magnet formula servomotor and described nut, screw mandrel coaxial arrangement, the stator of external rotor permanent magnet formula servomotor connects housing, and housing connects described pedestal.
The present invention is applied on the jack, and jack base 20 and jack loam cake 21 are pedestals, and the housing of external rotor permanent magnet formula servomotor is contained on the jack base 20, and bearing pedestal 1 and taper roll bearing 2 are contained on the jack loam cake 21.
When nut 9 rotated under the stator of external rotor magneto servomotor drives, screw mandrel was upwards done jacking.When the motor reverse rotation, screw mandrel draws in downwards.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.

Claims (2)

1, electric pushing device comprises pedestal, and screw mandrel is located on the pedestal, also comprise intermeshing screw mandrel and nut, the screw mandrel front end is a pushing end, it is characterized in that: connect an external rotor permanent magnet formula servomotor on the pedestal, described nut is fixed on the rotor of external rotor permanent magnet formula servomotor.
2, electric pushing device as claimed in claim 1, it is characterized in that: the rotor of described external rotor permanent magnet formula servomotor is arranged on the pedestal by taper roll bearing, the rotor of external rotor permanent magnet formula servomotor and described nut, screw mandrel coaxial arrangement, the stator of external rotor permanent magnet formula servomotor connects housing, and housing connects described pedestal.
CNA2007101645738A 2007-12-07 2007-12-07 Electric pushing device Pending CN101453145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007101645738A CN101453145A (en) 2007-12-07 2007-12-07 Electric pushing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007101645738A CN101453145A (en) 2007-12-07 2007-12-07 Electric pushing device
PCT/CN2008/072709 WO2009074032A1 (en) 2007-12-07 2008-10-16 An electric pushing device

Publications (1)

Publication Number Publication Date
CN101453145A true CN101453145A (en) 2009-06-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007101645738A Pending CN101453145A (en) 2007-12-07 2007-12-07 Electric pushing device

Country Status (2)

Country Link
CN (1) CN101453145A (en)
WO (1) WO2009074032A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280921A (en) * 2013-04-27 2013-09-04 方铝清 Driving motor and milling disc lifting mechanism of bead mill
CN103780007A (en) * 2012-10-18 2014-05-07 大银微系统股份有限公司 Outer rotation type straight-drive mechanism with screw reciprocating motion
CN106329881A (en) * 2015-06-15 2017-01-11 李启飞 Electric speed regulation cylinder type magnetic coupler equipped with sliding lead screw
WO2018130154A1 (en) * 2017-01-12 2018-07-19 杭州宇树科技有限公司 High power mass density linear driving device of simplified structure

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010005538A1 (en) * 2010-01-23 2011-07-28 Schaeffler Technologies GmbH & Co. KG, 91074 Wind energy plant with one or more rotor blades
EP2891824A3 (en) 2013-10-29 2016-04-06 Perma gear GmbH Magnetische Antriebselemente Slider
DE202014103629U1 (en) 2014-08-05 2014-09-18 Perma Gear Gmbh Magnetische Antriebselemente pusher

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1193903A (en) * 1997-09-18 1999-04-06 Ribekkusu:Kk Hydraulic cylinder with built-in valve for positioning control
JPH11122865A (en) * 1997-10-17 1999-04-30 Thk Co Ltd Ball screw device with motor
CN101336507B (en) * 2006-01-31 2011-06-22 Thk株式会社 Hollow motor drive device
CN200977715Y (en) * 2006-10-08 2007-11-21 顺德职业技术学院 Straight driving injection machine liftout attachment
CN201122873Y (en) * 2007-12-07 2008-09-24 联塑(杭州)机械有限公司 Electric pushing device
CN201136276Y (en) * 2007-12-07 2008-10-22 联塑(杭州)机械有限公司 Electric mould-locking device
CN101306574B (en) * 2008-06-25 2010-12-15 联塑(杭州)机械有限公司 Electric thruster

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103780007A (en) * 2012-10-18 2014-05-07 大银微系统股份有限公司 Outer rotation type straight-drive mechanism with screw reciprocating motion
CN103280921A (en) * 2013-04-27 2013-09-04 方铝清 Driving motor and milling disc lifting mechanism of bead mill
CN106329881A (en) * 2015-06-15 2017-01-11 李启飞 Electric speed regulation cylinder type magnetic coupler equipped with sliding lead screw
WO2018130154A1 (en) * 2017-01-12 2018-07-19 杭州宇树科技有限公司 High power mass density linear driving device of simplified structure

Also Published As

Publication number Publication date
WO2009074032A1 (en) 2009-06-18

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Open date: 20090610