CN101450523A - Electric mode locking device - Google Patents

Electric mode locking device Download PDF

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Publication number
CN101450523A
CN101450523A CNA2007101645723A CN200710164572A CN101450523A CN 101450523 A CN101450523 A CN 101450523A CN A2007101645723 A CNA2007101645723 A CN A2007101645723A CN 200710164572 A CN200710164572 A CN 200710164572A CN 101450523 A CN101450523 A CN 101450523A
Authority
CN
China
Prior art keywords
hinged
rod
bent hand
plate
pattern plate
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
CNA2007101645723A
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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 CNA2007101645723A priority Critical patent/CN101450523A/en
Publication of CN101450523A publication Critical patent/CN101450523A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • B29C2045/1784Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
    • B29C2045/1792Machine parts driven by an electric motor, e.g. electric servomotor
    • B29C2045/1794Machine parts driven by an electric motor, e.g. electric servomotor by a rotor or directly coupled electric motor, e.g. using a tubular shaft motor

Abstract

The invention relates to an electric mode locking device, which comprises a matched mold mechanical mechanism. The matched mold mechanical mechanism comprises a machine frame, a back moulding board, a moving moulding board used for mounting a moving die and a front moulding board used for mounting a front die, wherein the moving moulding board and the back moulding board can be matched and separated relatively, the fore part of a screw rod is connected with the matched mold mechanical mechanism, a driving mechanism of the screw rod is an external rotor permanent magnetic servomotor of which a rotor is connected with a nut, and the nut is engaged with the screw rod. The device can improve the precision of propulsion and utilization efficiency of energy.

Description

Electric mode locking device
(1) technical field
The present invention relates to the clamping apparatus that a kind of injection machine open and close mould is used.
(2) background technology
The clamping apparatus of existing injection machine mostly is the hydraulic lock mold mechanism, adopts hydraulic jack to promote mechanical mechanism, finishes the folding of mould.
Electric mode locking device is also arranged as shown in Figure 1, the rod hinge connection of substrate and matched moulds mechanical mechanism is provided with nut on rear pattern plate, and screw mandrel cooperates with this nut, and 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 mode locking device is: to the structure more complicated of the running part of screw mandrel, need transmit moment of torsion to the screw mandrel in the motion, 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 matched moulds process, and this shortcoming becomes quite obvious when needs are accurately controlled the matched moulds process with servomotor; 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 mode locking 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 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 mode locking device of efficiency.
Electric mode locking device of the present invention comprises the matched moulds mechanical mechanism; the front template that described matched moulds mechanical mechanism comprises frame, rear pattern plate, is used to that the moving die plate of dynamic model is installed and cover half is installed; described moving die plate can close up relatively and separate with rear pattern plate; the described matched moulds mechanical mechanism of the anterior connection of screw mandrel; it is characterized in that: the driving mechanism of screw mandrel is an external rotor permanent magnet formula servomotor; the rotor attaching nut of described external rotor permanent magnet formula servomotor, described nut and the engagement of described screw mandrel.
Further, the rotor of described external rotor permanent magnet formula servomotor is arranged on the rear pattern plate by bearing, screw mandrel passes described rear pattern plate, 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 shell, and shell connects described rear pattern plate.
Perhaps, described external rotor permanent magnet formula servomotor is arranged on frame or the rear pattern plate by support, and screw mandrel connects from the side of described matched moulds mechanical mechanism.
When external rotor permanent magnet formula servomotor energising rotation, the nut rotation, the driving screw mandrel advances or retreats.Screw mandrel affects the matched moulds mechanical mechanism, finishes die sinking or matched moulds.
Screw mandrel driving mechanism compactness of the present invention, easy, nut directly is connected with the transcapsidation motor, has avoided the how caused energy loss of gear stage, improves Energy Efficiency Ratio, also helps the accurate control of screw rod 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 mode locking device.
Fig. 2 is the structure chart of another existing electric mode locking device.
Fig. 3 is the structural representation of the solution of the present invention one.
Fig. 4 is the structural representation of the solution of the present invention two.
Fig. 5 is the structural representation of the solution of the present invention three.
Fig. 6 is the structural representation of the solution of the present invention four.
Fig. 7 is the structural representation of the solution of the present invention five.
Fig. 8 is the structural representation of the solution of the present invention six.
(5) specific embodiment
Embodiment one
With reference to Fig. 3
Electric mode locking device of the present invention 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, described moving die plate 15 can close up relatively and separate with front template 16.Screw mandrel 8 passes described rear pattern plate 10, the screw mandrel 8 anterior cross car walls 14 that connect described matched moulds mechanical mechanism.
The driving mechanism of external rotor permanent magnet formula servomotor as screw mandrel 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 block 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 comprises: 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, and during positive electricity, rotor is made clockwise direction and rotated on the locked mode motor is logical, 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 collapsible form 15 along pull bar 19; Rotor is done counterclockwise and is rotated 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. 4:
The difference of present embodiment and embodiment one is the matched moulds mechanical mechanism, and all the other are identical with embodiment one.
The matched moulds mechanical mechanism of present embodiment comprises: rear pattern plate 10, moving die plate 15 and front template 16 all are enclosed within on the girt; Be connected with elbow-bar mechanism between cross car wall 141, rear pattern plate 10, the moving platen 15 up and down symmetrically, comprising the hinged connecting rod 21 of end and rear pattern plate 10, the other end of connecting rod 21 and bent hand big connecting rod 131 are hinged, the middle part of connecting rod 21 and bent hand small rod 121 are hinged, the other end of bent hand small rod 121 is hinged on cross car wall 141, and the front end of bent hand big connecting rod 131 is hinged on the moving die plate 15.
When screw mandrel 8 advanced or retreats, cross car wall 141 rotated around its pin joint with rear pattern plate 10 by bent hand small rod 121 drivening rods 21, thus, and bent hand big connecting rod 131 drive moving die plate 15 matched moulds or die sinkings.
Embodiment three
With reference to Fig. 5:
The difference of present embodiment and embodiment one is the matched moulds mechanical mechanism, and all the other are identical with embodiment one.
The matched moulds mechanical mechanism of present embodiment comprises: rear pattern plate 10, moving die plate 15 and front template 16 all are enclosed within on the girt; Be connected with double curved elbow mechanism between cross car wall 142, rear pattern plate 10, the moving platen 15 up and down symmetrically, comprising the hinged "T"-shaped connecting plate 22 of end and rear pattern plate 10, the other end of connecting plate 22 and bent hand big connecting rod 132 are hinged, the shank of connecting plate 22 and bent hand small rod 122 are hinged, the other end of bent hand small rod 122 is hinged on cross car wall 142, and the front end of bent hand big connecting rod 132 is hinged on the moving die plate 15.
When screw mandrel 8 advanced or retreats, cross car wall 142 drove connecting plates 22 by bent hand small rod 122 and rotates around its pin joint with rear pattern plate 10, thus, and bent hand big connecting rod 132 drive moving die plate 15 matched moulds or die sinkings.
Embodiment four
With reference to Fig. 6:
The difference of present embodiment and embodiment one is the matched moulds mechanical mechanism, and all the other are identical with embodiment one.
The matched moulds mechanical mechanism of present embodiment: rear pattern plate 10, moving die plate 15 and front template 16 all are enclosed within and are connected with double curved elbow mechanism between rear pattern plate 10 on the girt, the moving platen 15 up and down symmetrically, and the two ends of car wall 143 are hinged on the hinged place of bent hand 113 of elbow and bent hand big connecting rod 133.
External rotor permanent magnet formula servomotor is arranged on frame or the rear pattern plate 10 by support 23, and screw mandrel 83 is articulated in the hinged place of bent hand 113 of elbow and bent hand big connecting rod 133 from the side of described matched moulds mechanical mechanism.
When screw mandrel 83 advanced or retreats, the bent hand 113 of the promotion or the subluxation of head of the radius rotated around pin joint with bent hand big connecting rod 133, and thus, bent hand big connecting rod 133 drives moving die plate 15 matched moulds or die sinkings.
Embodiment five
With reference to Fig. 7:
The difference of present embodiment and embodiment one is the matched moulds mechanical mechanism, and all the other are identical with embodiment one.
The matched moulds mechanical mechanism of present embodiment: rear pattern plate 10, moving die plate 15 and front template 16 all are enclosed within and are connected with single elbow mechanism between rear pattern plate 10 on the girt, the moving platen 15 up and down symmetrically.Described single elbow mechanism comprises bent hand 114 of the elbow that is hinged and bent hand big connecting rod 134, and bent hand 114 rear ends of elbow and rear pattern plate 10 are hinged, and bent hand big connecting rod 134 front ends and car wall 144 are hinged, are connected with adjusting device 24 between car wall 14 and the moving platen 15.
External rotor permanent magnet formula servomotor is arranged on frame or the rear pattern plate 10 by support, and screw mandrel 84 is articulated in the hinged place of bent hand 114 of elbow and bent hand big connecting rod 134 from the side of described matched moulds mechanical mechanism.
When screw mandrel 8 advanced or retreats, the bent hand 11 of the promotion or the subluxation of head of the radius rotated around pin joint with bent hand big connecting rod 13, and thus, bent hand big connecting rod 13 drives moving die plate 15 matched moulds or die sinkings.
Embodiment six
With reference to Fig. 8:
The difference of present embodiment and embodiment one is the matched moulds mechanical mechanism, and all the other are identical with embodiment one.
The matched moulds mechanical mechanism of present embodiment is: rear pattern plate 10, moving die plate 15 and front template 16 all are enclosed within on the girt; Be connected with double curved elbow mechanism between cross car wall 145, rear pattern plate 10, the moving platen 15 up and down symmetrically, comprising the hinged connecting plate 20 of rear end and rear pattern plate 10, bent hand small rod 125 is articulated in connecting plate 20 middle and lower parts, bent hand big connecting rod 135 is articulated in the front end of connecting plate, the other end of bent hand small rod 125 is hinged on the cross car wall 145, and the front end of bent hand big connecting rod 135 is hinged on the moving die plate 15.
When screw mandrel 8 advanced or retreats, cross car wall 14 drove connecting plates 20 by bent hand small rod 125 and rotates around its pin joint with rear pattern plate 10, thus, and bent hand big connecting rod 135 drive moving die plate 15 matched moulds or die sinkings.
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 (9)

1, electric mode locking device; comprise the matched moulds mechanical mechanism; the front template that described matched moulds mechanical mechanism comprises frame, rear pattern plate, is used to that the moving die plate of dynamic model is installed and cover half is installed; described moving die plate can close up relatively and separate with rear pattern plate; the described matched moulds mechanical mechanism of the anterior connection of screw mandrel; it is characterized in that: the driving mechanism of screw mandrel is an external rotor permanent magnet formula servomotor, the rotor attaching nut of described external rotor permanent magnet formula servomotor, described nut and the engagement of described screw mandrel.
2, electric mode locking device as claimed in claim 1; it is characterized in that: described matched moulds mechanical mechanism comprises: the rotor of described external rotor permanent magnet formula servomotor is arranged on the rear pattern plate by bearing; screw mandrel passes described rear pattern plate; 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 shell, and shell connects described rear pattern plate.
3, electric mode locking device as claimed in claim 2; it is characterized in that: described matched moulds mechanical mechanism comprises: a crank connecting rod mechanism; the rear end of the hinged symmetrically up and down bent hand of a pair of elbow of rear pattern plate (10) (11); the front end of the bent hand of elbow (11) 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 side symmetrically.
4, electric mode locking device as claimed in claim 2 is characterized in that: described matched moulds mechanical mechanism comprises: rear pattern plate (10), moving die plate (15) and front template (16) all are enclosed within on the girt; Be connected with elbow-bar mechanism up and down symmetrically between cross car wall (141), rear pattern plate (10), the moving platen (15), comprising end and the hinged connecting rod (21) of rear pattern plate (10), the other end of connecting rod (21) and bent hand big connecting rod (131) are hinged, the middle part of connecting rod (21) and bent hand small rod (121) are hinged, the other end of bent hand small rod (121) is hinged on cross car wall (141), and the front end of bent hand big connecting rod (131) is hinged on the moving die plate (15).
5, electric mode locking device as claimed in claim 2 is characterized in that: described matched moulds mechanical mechanism comprises: rear pattern plate (10), moving die plate (15) and front template (16) all are enclosed within on the girt; Be connected with double curved elbow mechanism up and down symmetrically between cross car wall (142), rear pattern plate (10), the moving platen (15), comprising end and the hinged "T"-shaped connecting plate (22) of rear pattern plate (10), the other end of connecting plate (22) and bent hand big connecting rod (132) are hinged, the shank of connecting plate (22) and bent hand small rod (122) are hinged, the other end of bent hand small rod (122) is hinged on cross car wall (142), and the front end of bent hand big connecting rod (132) is hinged on the moving die plate 15.
6, electric mode locking device as claimed in claim 2 is characterized in that: described matched moulds mechanical mechanism is: rear pattern plate (10), moving die plate (15) and front template (16) all are enclosed within on the girt; Be connected with double curved elbow mechanism up and down symmetrically between cross car wall (145), rear pattern plate (10), the moving platen (15), comprising rear end and the hinged connecting plate (20) of rear pattern plate (10), bent hand small rod (125) is articulated in connecting plate (20) middle and lower part, bent hand big connecting rod (135) is articulated in the front end of connecting plate, the other end of bent hand small rod (125) is hinged on the cross car wall (145), and the front end of bent hand big connecting rod (135) is hinged on the moving die plate (15).
7, electric mode locking device as claimed in claim 1 is characterized in that: described external rotor permanent magnet formula servomotor is arranged on frame or the rear pattern plate by support, and screw mandrel connects from the side of described matched moulds mechanical mechanism.
8, electric mode locking device as claimed in claim 7, it is characterized in that: described matched moulds mechanical mechanism comprises: rear pattern plate (10), moving die plate (15) and front template (16) all are enclosed between rear pattern plate on the girt (10), the moving platen (15) and are connected with double curved elbow mechanism up and down symmetrically, and the two ends of car wall (143) are hinged on the hinged place of bent hand of elbow (113) and bent hand big connecting rod (133); External rotor permanent magnet formula servomotor is arranged on frame or the rear pattern plate (10) by support (23), and screw mandrel (83) is articulated in the hinged place of bent hand of elbow (113) and bent hand big connecting rod (133) from the side of described matched moulds mechanical mechanism.
9, electric mode locking device as claimed in claim 7 is characterized in that: described matched moulds mechanical mechanism comprises: rear pattern plate (10), moving die plate (15) and front template (16) all are enclosed between rear pattern plate on the girt (10), the moving platen (15) and are connected with single elbow mechanism up and down symmetrically.Described single elbow mechanism comprises the bent hand of elbow (114) and bent hand big connecting rod (134) that is hinged, bent hand (114) rear end of elbow and rear pattern plate (10) are hinged, bent hand big connecting rod (134) front end and Che Bi (144) are hinged, are connected with adjusting device (24) between car wall (144) and the moving platen (15); External rotor permanent magnet formula servomotor is arranged on frame or the rear pattern plate (10) by support, and screw mandrel (84) is articulated in the hinged place of bent hand of elbow (114) and bent hand big connecting rod (134) from the side of described matched moulds mechanical mechanism.
CNA2007101645723A 2007-12-07 2007-12-07 Electric mode locking device Pending CN101450523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007101645723A CN101450523A (en) 2007-12-07 2007-12-07 Electric mode locking device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007101645723A CN101450523A (en) 2007-12-07 2007-12-07 Electric mode locking device
PCT/CN2008/072711 WO2009071002A1 (en) 2007-12-07 2008-10-16 Electrical mold clamping assembly

Publications (1)

Publication Number Publication Date
CN101450523A true CN101450523A (en) 2009-06-10

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ID=40717298

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007101645723A Pending CN101450523A (en) 2007-12-07 2007-12-07 Electric mode locking device

Country Status (2)

Country Link
CN (1) CN101450523A (en)
WO (1) WO2009071002A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103042665A (en) * 2011-10-12 2013-04-17 住友重机械工业株式会社 Injection molding machine
CN103963210A (en) * 2013-01-30 2014-08-06 住友重机械工业株式会社 Injection Molding Machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11333896A (en) * 1998-05-29 1999-12-07 Sumitomo Heavy Ind Ltd Motor for clamping device
US20040052893A1 (en) * 2001-02-15 2004-03-18 Gunther Fischbach Closing device in an injection moulding machine for synthetic materials
CN201136276Y (en) * 2007-12-07 2008-10-22 联塑(杭州)机械有限公司 Electric mould-locking device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103042665A (en) * 2011-10-12 2013-04-17 住友重机械工业株式会社 Injection molding machine
CN103042665B (en) * 2011-10-12 2015-11-18 住友重机械工业株式会社 Injection (mo(u)lding) machine
CN103963210A (en) * 2013-01-30 2014-08-06 住友重机械工业株式会社 Injection Molding Machine

Also Published As

Publication number Publication date
WO2009071002A1 (en) 2009-06-11

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