CN103009586A - Injection molding machine - Google Patents

Injection molding machine Download PDF

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Publication number
CN103009586A
CN103009586A CN2012103568563A CN201210356856A CN103009586A CN 103009586 A CN103009586 A CN 103009586A CN 2012103568563 A CN2012103568563 A CN 2012103568563A CN 201210356856 A CN201210356856 A CN 201210356856A CN 103009586 A CN103009586 A CN 103009586A
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CN
China
Prior art keywords
injection
lding
rear fender
movable member
machine
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Granted
Application number
CN2012103568563A
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Chinese (zh)
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CN103009586B (en
Inventor
中崎修
森江孝明
森田洋
山下幸贵
守谷幸次
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Sumitomo Heavy Industries Ltd
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Sumitomo Heavy Industries Ltd
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Priority claimed from JP2011208154A external-priority patent/JP5694106B2/en
Priority claimed from JP2011208155A external-priority patent/JP5694107B2/en
Application filed by Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Publication of CN103009586A publication Critical patent/CN103009586A/en
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Publication of CN103009586B publication Critical patent/CN103009586B/en
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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
    • B29C45/64—Mould opening, closing or clamping devices
    • 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
    • B29C45/03—Injection moulding apparatus
    • 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
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • 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
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C2045/645—Mould opening, closing or clamping devices using magnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention provides an injection molding machine, which can suitably cut off the flow path of the vortex to improve the responsibility. The injection molding machine comprises a first fixed component equipped with a fixed mold; a second fixed component opposite to the first fixed component; a first movable component equipped with a movable mold; and a second movable component connected with the first movable component to move together with the first movable component, wherein the second fixed component and the second movable component form a mold clamping force generation mechanism for generating the mold clamping force by the absorption force of an electromagnet, and at least one of the second fixed component and the second movable component is formed by combining more than two split bodies.

Description

Injection (mo(u)lding) machine
The application advocates the priority based on the Japanese patent application of on September 22nd, 2011 application 2011-208154 number and 2011-208155 number.The full content of this application is applied in this specification by reference.
Technical field
The present invention relates to a kind of injection (mo(u)lding) machine that possesses the electromagnet that drives mould assembling action.
Background technology
In the past, in injection (mo(u)lding) machine, penetrated resin from the injection nozzle of injection device, and be filled in the die cavity space between cover half and the dynamic model, and made its curing, thereby obtained products formed.And, carry out mold closing, matched moulds and die sinking and set mold closing mechanism in order to move dynamic model with respect to cover half.
This mold closing mechanism has by to hydraulic cylinder for oil supply and driven fluid pressure type mold closing mechanism and by electric motor driven electrodynamic type mold closing mechanism, this electrodynamic type mold closing mechanism is because controllability is higher, can not pollute periphery, and energy efficiency is higher, therefore is widely used.At this moment, make ball-screw rotate to produce thrust by drive motor, amplify this thrust by toggle mechanism, produce larger mold clamping force.
But in the electrodynamic type mold closing mechanism of this structure, owing to using toggle mechanism, therefore the characteristic at this toggle mechanism is difficult to change mold clamping force, and response and less stable can't be controlled mold clamping force in forming process.Therefore, provide the mold closing mechanism that can directly be used as by the thrust that ball-screw produces mold clamping force.At this moment, because torque and the mold clamping force of motor are proportional, therefore can in forming process, control mold clamping force.
Yet in mold closing mechanism in the past, the anti-load of ball-screw is lower, can't produce larger mold clamping force, and mold clamping force can change because of the torque pulsation that results from motor.And, in order to produce mold clamping force, needing to supply with electric current to motor all the time, the power consumption of motor and heating quantitative change are many, therefore the specified output of motor correspondingly need to be strengthened, and cause the cost of mold closing mechanism to uprise.
Therefore, considered the mold closing mechanism (for example, patent documentation 1) that utilizes the absorption affinity of electromagnet for mould on-off action use line motor for mould assembling action.
Patent documentation 1: the international brochure that discloses No. 05/090052
Yet, when the use for record in such as patent documentation 1 utilizes the structure of mold closing mechanism of absorption affinity of electromagnet, operating lag or the iron loss that causes because of the generation of eddy current, reach the heating that causes thus etc. and be a problem.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of stream that can suitably block eddy current to improve the injection (mo(u)lding) machine of response.
For achieving the above object, according to an aspect of the present invention, provide a kind of injection (mo(u)lding) machine, it possesses: the 1st fixed part, and it is equipped with cover half; The 2nd fixed part, it sets as opposed with described the 1st fixed part; The 1st movable member, it is equipped with dynamic model; And the 2nd movable member, itself and described the 1st movable member link and together move with described the 1st movable member, described the 2nd fixed part and described the 2nd movable member consist of the mold clamping force generation mechanism that produces mold clamping force by the absorption affinity of electromagnet, and at least any one party parts in described the 2nd fixed part and described the 2nd movable member consist of in conjunction with the dividing body more than 2.
And, for achieving the above object, according to an aspect of the present invention, providing a kind of injection (mo(u)lding) machine, it possesses: the 1st fixed part, it is equipped with cover half; The 2nd fixed part, it sets as opposed with described the 1st fixed part; The 1st movable member, it is equipped with dynamic model; And the 2nd movable member, itself and described the 1st movable member link and together move with described the 1st movable member, described the 2nd fixed part and described the 2nd movable member consist of the mold clamping force generation mechanism that produces mold clamping force by the absorption affinity of electromagnet, at least any one party parts in described the 2nd fixed part and described the 2nd movable member are made of foundry goods, and this foundry goods comprises and is lower than the low conductive layer that the material of predetermined value consists of by electrical conductivity and consists of.
The invention effect:
Can obtain the injection (mo(u)lding) machine that a kind of stream that can suitably block eddy current improves response according to the present invention.
Description of drawings
The figure of state when Fig. 1 is mold closing mechanism mold closing in the injection (mo(u)lding) machine of expression embodiments of the present invention.
The figure of state when Fig. 2 is mold closing mechanism die sinking in the injection (mo(u)lding) machine of expression embodiments of the present invention.
Fig. 3 is that expression possesses the stereogram based on the single-piece state of the rear fender 13 of the segmenting structure of an embodiment (embodiment 1).
Fig. 4 is the key diagram of the plane of symmetry in magnetic field.
Fig. 5 is the key diagram of eddy current stream cutting action that possesses the rear fender 13 of segmenting structure.
Fig. 6 is the figure of an example of the combining form between expression dividing body 13A and the dividing body 13B.
Fig. 7 is the figure of an example that expression is arranged at the strengthening part 90 of the joint portion between dividing body 13A and the dividing body 13B.
Fig. 8 is the stereogram that possesses based on the single-piece state of the rear fender 13 of the segmenting structure of embodiment 2.
Fig. 9 is that expression is based on the stereogram of the single-piece state of the rear fender 113 of embodiment 3.
Figure 10 is the cutaway view along the A-A line of Fig. 9.
Figure 11 is the key diagram of the plane of symmetry in magnetic field.
Figure 12 is the key diagram of eddy current stream cutting action that possesses the rear fender 113 of low conductive layer 180.
Figure 13 is that expression is based on the stereogram of the single-piece state of the rear fender 113 ' of embodiment 4.
Figure 14 is the cutaway view along the B-B line of Figure 13.
Among the figure: Br1-parts of bearings, Fr-framework, Gd-guiding piece, 10-mold closing mechanism, 11-fixation clip, but 12-dynamic pressure plate, 13,13 ', 113,113 '-rear fender, 13A, 13B, 13A ', 13B '-dividing body, 113A, 113A '-thinner wall section, the 14-connecting rod, the 15-cover half, 16-dynamic model, 17-injection device, the 18-injection nozzle, 19-die device, 22, the 122-adsorption plate, the 28-line motor, 29-stator, 31-mover, the 33-magnetic pole tooth, 34-magnetic core, 35-coil, 37-electromagnet unit, 39-center-pole, 41, the 141-hole, 45, the 145-groove, 46, the 146-magnetic core, 47, the 147-yoke, 48, the 148-coil, 49-electromagnet, 51-adsorption section, 55-loading detection device, the 60-control part, the 61-mould opens and closes handling part, 62-matched moulds handling part, 131-protuberance, 132-recess, the 136-insulating materials, the 138-insulating element, 180-hangs down conductive layer, 90, the 190-strengthening part, the X1-magnetic field plane of symmetry, X2-magnetic field parallel surface.
The specific embodiment
Below, with reference to the accompanying drawings, describe being used for implementing best mode of the present invention.In addition, in the present embodiment, about mold closing mechanism, but the moving direction of the dynamic pressure plate in the time of will carrying out mold closing is made as the place ahead, but the moving direction of the dynamic pressure plate when carrying out die sinking is made as the rear, about injection device, the moving direction of the screw rod in the time of will injecting is made as the place ahead, and the moving direction of the screw rod when measuring is made as the rear and describes.
The figure of the state the when figure of state when Fig. 1 is mold closing mechanism mold closing in the injection (mo(u)lding) machine of expression embodiments of the present invention, Fig. 2 are mold closing mechanism die sinkings in the injection (mo(u)lding) machine of expression embodiments of the present invention.In addition, in Fig. 1 and Fig. 2, be decorated with hatched parts main cross section is shown.
Among the figure, 10 is mold closing mechanism, Fr is the framework (support) of injection (mo(u)lding) machine, Gd is the guiding piece with respect to this framework Fr activity, 11 for loading on the not shown guiding piece or the fixation clip on the framework Fr, set opposed to each other rear fender 13 with this fixation clip 11 across predetermined space and with fixation clip 11, between fixation clip 11 and rear fender 13, set up among 4 connecting rod 14(figure, 2 in 4 connecting rods 14 only are shown).In addition, rear fender 13 is fixed with respect to framework Fr.
Leading section (being the right part among the figure) at connecting rod 14 forms threaded portion (not shown), is anchored on this threaded portion by nut n1 is screwed togather, and the leading section of connecting rod 14 is fixed in fixation clip 11.The rearward end of connecting rod 14 is fixed in rear fender 13.
And, but opposed and open and close direction to mould and set dynamic pressure plate 12 free to advance or retreatly along connecting rod 14 and fixation clip 11.For this reason, but dynamic pressure plate 12 be fixed on the guiding piece Gd, but the position corresponding with connecting rod 14 is formed for not shown guide hole or notch part that connecting rod 14 is run through in dynamic pressure plate 12.In addition, also be fixed with adsorption plate 22 described later on the guiding piece Gd.
And, at fixation clip 11 cover half 15 are installed, but at dynamic pressure plate 12 dynamic models 16 are installed, but mold closing, matched moulds and die sinking are carried out in contact separation along with the advance and retreat of dynamic pressure plate 12 with dynamic model 16 for cover half 15.In addition, along with carrying out matched moulds, form not shown die cavity space between cover half 15 and dynamic model 16, the not shown resin filling that penetrates from the injection nozzle 18 of injection device 17 is in the die cavity space.In addition, consist of die device 19 by cover half 15 and dynamic model 16.
But adsorption plate 22 is fixed on the guiding piece Gd abreast with dynamic pressure plate 12.Thus, adsorption plate 22 is more free to advance or retreat by the rear than rear fender 13.Adsorption plate 22 can be formed by magnetic material.For example, adsorption plate 22 can be made of the electromagnetism stacked steel plate, and this electromagnetism stacked steel plate forms by the stacked thin plate that is made of the ferromagnetism body.Perhaps, adsorption plate 22 also can form by casting.
But line motor 28 is arranged on the guiding piece Gd in order to make dynamic pressure plate 12 advance and retreat.Line motor 28 possesses stator 29 and mover 31, but that stator 29 forms on framework Fr is parallel with guiding piece Gd and corresponding with the moving range of dynamic pressure plate 12, but mover 31 forms opposed at the lower end of dynamic pressure plate 12 and stator 29 and spreads all over preset range.
Mover 31 possesses magnetic core 34 and coil 35.And magnetic core 34 possesses a plurality of magnetic pole tooths 33 outstanding towards stator 29 and that form with preset space length, and coil 35 packages are on each magnetic pole tooth 33.In addition, but magnetic pole tooth 33 form and be parallel to each other with respect to the rectangular direction of the moving direction of dynamic pressure plate 12.And stator 29 possesses not shown magnetic core and extends and the not shown permanent magnet of formation at this magnetic core.Alternately be subjected to magnetic to form this permanent magnet by each magnetic pole that makes the N utmost point and the S utmost point.If drive line motor 28 by supplying with scheduled current to coil 35, then mover 31 advance and retreat with this, are advanced and retreat but dynamic pressure plate 12 passes through guiding piece Gd, thereby can be carried out mold closing and die sinking.
In addition, in the present embodiment, permanent magnet is equipped on the stator 29, and coil 35 is equipped on the mover 31, but also coil can be equipped on the stator, and permanent magnet is equipped on the mover.At this moment, coil can not move along with the driving of line motor 28, therefore can carry out for the distribution to the coil supply capability like a cork.
In addition, but be not limited in the structure of the fixing dynamic pressure plate 12 of guiding piece Gd with adsorption plate 22, but also can be made as the structure that the mover 31 of line motor 28 is arranged at dynamic pressure plate 12 or adsorption plate 22.And, be not limited to line motor 28 as the mould switching mechanism, also can be fluid pressure type or electrodynamic type etc.
But if before the dynamic pressure plate 12 so dynamic model 16 connect with cover half 15, then carry out mold closing, then, carry out matched moulds.Between rear fender 13 and adsorption plate 22, set be used to the electromagnet unit 37 that carries out matched moulds.And, run through rear fender 13 and adsorption plate 22 and the center-pole 39 of extension and link dynamic pressure plate 12 and adsorption plate 22 but set free to advance or retreatly.But this center-pole 39 when mold closing and during die sinking with the advance and retreat interlock of dynamic pressure plate 12 and make adsorption plate 22 advance and retreat, but and when matched moulds, will be passed to dynamic pressure plate 12 by the absorption affinity that electromagnet unit 37 produces.
In addition, but consist of mold closing mechanism 10 by fixation clip 11 dynamic pressure plates 12, rear fender 13, adsorption plate 22, line motor 28, electromagnet unit 37 and center-pole 39 etc.
Electromagnet unit 37 comprises the electromagnet 49 that is formed at rear fender 13 sides and is formed at the adsorption section 51 of adsorption plate 22 sides.And, at the predetermined portions of the rear end face of rear fender 13, for around center-pole 39, forming groove 45, forming more in the inner part magnetic core 46 than groove 45 in the present embodiment, and forming more in the outer part yoke 47 than groove 45.And, in groove 45, around magnetic core 46 package coils 48.In addition, magnetic core 46 and yoke 47 can be made of the integrative-structure of foundry goods.
In addition, in the present embodiment, can separate with rear fender 13 forming electromagnet 49, and separate with adsorption plate 22 and to form adsorption section 51, also the part of electromagnet as rear fender 13 can be formed, and the part of adsorption section as adsorption plate 22 formed.And, also can configure on the contrary electromagnet and adsorption section.For example, can electromagnet 49 be set in adsorption plate 22 sides, in rear fender 13 sides the adsorption section be set.
In the electromagnet unit 37, if supply with electric currents to coil 48, then electromagnet 49 is driven and to adsorbing adsorption section 51, thereby can produce mold clamping force.
But center-pole 39 is adapted in rearward end and adsorption plate 22 and links and link at leading section and dynamic pressure plate 12.Therefore, but center-pole 39 when mold closing with dynamic pressure plate 12 together before so that adsorption plate 22 is advanced, but and when die sinking, together retreat and adsorption plate 22 retreated with dynamic pressure plate 12.For this reason, be formed for hole 41 that center-pole 39 is run through at the middle body of rear fender 13, the opening of the leading section of faces aperture 41 and set the parts of bearings Br1 such as lining that support sliding freely center-pole 39.
By the line motor 28 of control part 60 control mold closing mechanisms 10 and the driving of electromagnet 49.Control part 60 possesses CPU and memory etc., also possesses for circuit from the result who is calculated by CPU to the coil 48 of the coil 35 of line motor 28 or electromagnet 49 that supply with electric currents according to.Also be connected with loading detection device 55 on the control part 60.Loading detection device 55 is arranged at the precalculated position (precalculated position between fixation clip 11 and the rear fender 13) of at least 1 connecting rod 14 in mold closing mechanism 10, detect the load that puts on this connecting rod 14.Be shown with among the figure at 2 connecting rods 14 up and down the example of loading detection device 55 is set.Loading detection device 55 for example is made of the sensor of the elongation that detects connecting rod 14.Be sent to control part 60 by loading detection device 55 detected loads.In addition, in Fig. 2, omit for simplicity control part 60.
Then, the action of mold closing mechanism 10 described.
Mould by control part 60 opens and closes handling part 61 control mold closing operations.Under the state (state during die sinking) of Fig. 2, mould opens and closes handling part 61 and supplies with electric current to coil 35.Then, dynamic pressure plate 12 advances but line motor 28 is driven, and as shown in Figure 1, dynamic model 16 connects with cover half 15.At this moment, between rear fender 13 and adsorption plate 22, namely between electromagnet 49 and adsorption section 51, form gap delta.In addition, compare with mold clamping force, the required power of mold closing is very little.
Then, the matched moulds handling part 62 control matched moulds operations of control part 60.Matched moulds handling part 62 is supplied with electric current to coil 48, by the absorption affinity of electromagnet 49 adsorption section 51 is adsorbed.With this, but mold clamping force is passed to dynamic pressure plate 12 via adsorption plate 22 and center-pole 39, thereby carries out matched moulds.Beginning is when mold clamping force changes during matched moulds etc., and matched moulds handling part 62 is controlled, and will be the target mold clamping force under the stable state and required stable current value is supplied in coil 48 in order to produce by the deserved target mold clamping force of this variation.
In addition, mold clamping force detects by loading detection device 55.Detected mold clamping force is sent to control part 60, and in control part 60, adjustment is supplied in the electric current of coil 48 in order to make mold clamping force become setting value, and carries out FEEDBACK CONTROL.During this period, the resin of melting penetrates from injection nozzle 18 in injection device 17, and is filled in the die cavity space of die device 19.
If the cooling of the resin in the die cavity space is also solidified, then mould opens and closes handling part 61 control die sinking operations.Under the state of Fig. 1, matched moulds handling part 62 stops to supply with electric current to coil 48.With this, dynamic pressure plate 12 retreats but line motor 28 is driven, and as shown in Figure 2, dynamic model 16 places and retreats spacing position, thereby carries out die sinking.
At this, with reference to the later part of figure 3, characteristic structure of the present invention is described.
Fig. 3 is that expression possesses the stereogram based on the single-piece state of the rear fender 13 of the segmenting structure of an embodiment (embodiment 1).In addition, arrow h and arrow V represent respectively rear fender 13 in Fig. 3 left and right directions (horizontal direction) and above-below direction (vertical direction).But therefore these directions are used for convenient from start to finish owing to the state that arranges (direction) according to injection (mo(u)lding) machine changes.And arrow f represents the place ahead of rear fender 13.Fig. 4 is the key diagram of the plane of symmetry in magnetic field, is to schematically illustrate with the rear fender 13 of cross-section and the cutaway view of adsorption plate 22.
In the present embodiment, rear fender 13 consists of in conjunction with 2 dividing body 13A cutting apart with magnetic field plane of symmetry X1 and dividing body 13B.At this moment, dividing body 13A and the combination of shape and state of dividing body 13B to be electrically insulated each other.For example, dividing body 13A and dividing body 13B can be via insulating element with mode combinations spaced apart from each other.At this moment, form air layer (insulating barrier) between dividing body 13A and dividing body 13B, insulating properties is guaranteed.Perhaps, the faying face at dividing body 13A and dividing body 13B also can coat (for example lamination) insulating materials.
At this, magnetic field plane of symmetry X1 is the plane of symmetry that is formed at the magnetic field (magnetic line of force P that schematically illustrates in reference to figure 4) of rear fender 13 and adsorption plate 22 when electromagnet 49 drives.Be monopolar configuration in this example, as shown in Figure 3, magnetic field plane of symmetry X1 is by the center of the above-below direction V of rear fender 13 and the plane parallel with the left and right directions h of rear fender 13.
Fig. 5 is the key diagram of eddy current stream cutting action that possesses the rear fender 13 of segmenting structure, comparative example when Fig. 5 (A) expression nothing is cut apart, Fig. 5 (B) represents the present embodiment, is the top view of observing the rear fender 13 that disposes coil 48 from adsorption plate 22 side direction matched moulds directions.
When rear fender 13 nothings were cut apart, shown in arrow I among Fig. 5 (A), at the central portion (magnetic core) of rear fender, the orifice flow that eddy current is used around center-pole was moving.As above-mentioned, the problems such as response (response of mold clamping force) when this eddy current produces deteriorated electromagnet 49 driving.Therefore as the middle arrow I of Fig. 5 (B) to this, according to the present embodiment, owing to rear fender 13 is to consist of in conjunction with 2 dividing body 13A cutting apart with magnetic field plane of symmetry X1 and dividing body 13B, 1And arrow I 2Shown in, divided (being magnetic field plane of symmetry X1) in path of the eddy current around the hole 41 that center-pole is used cut off.So, the response in the time of can improving by the stream that suitably changes eddy current electromagnet 49 driving.And, (namely 2 dividing body 13A and dividing body 13B faying face each other) is magnetic field plane of symmetry X1 because the divisional plane of rear fender 13, therefore can not produce magnetic gap, and the impact that the output of cutting apart when driving for electromagnet 49 can be produced is suppressed at Min..
Fig. 6 is the figure of an example of the combining form between expression dividing body 13A and the dividing body 13B.In addition, for simplicity, rear fender 13 is shown with a wherein side halfbody with 1/2 model among Fig. 6, also can be identical about the opposing party's halfbody.
As shown in Figure 6, dividing body 13A and dividing body 13B can be by recess 132 combinations with the chimeric of protuberance 131 via insulating element 136 and insulating element 138.Particularly, dividing body 13A has protuberance 131 at the faying face with dividing body 13B, and therewith accordingly, dividing body 13B has recess 132 at the faying face with dividing body 13A.Insulating element 136 coats protuberance 131, and insulating element 138 is arranged in the recess 132.In addition, the height of protuberance 131 can be set as the degree of depth greater than recess 132, thus, the faying face of dividing body 13A and dividing body 13B is spaced apart at a predetermined distance from each other.
Fig. 7 is the figure of an example that expression is arranged at the strengthening part 90 of the joint portion between dividing body 13A and the dividing body 13B.In addition, for simplicity, rear fender 13 is shown with a wherein side halfbody with 1/2 model among Fig. 7, also can be identical about the opposing party's halfbody.
As shown in Figure 7, the joint portion between dividing body 13A and dividing body 13B can arrange strengthening part 90.These strengthening part 90 performances remedy by the function of cutting apart the intensity decline that causes.Thus, can be by cutting apart the raising response, and keep as the required intensity of rear fender 13.In the example shown in Figure 7, strengthening part 90 is made of the sheet materials such as metallic plate that are electrically insulated with rear fender 13.But, as long as strengthening part 90 can be guaranteed its intensity, then also can be formed by (reinforced plastics) such as plastics.In addition, strengthening part 90 can be incorporated on dividing body 13A and the dividing body 13B by bolt or welding etc.At this moment, strengthening part 90 is also brought into play in conjunction with dividing body 13A and dividing body 13B function each other.
And strengthening part 90 can possess cooling body.Cooling body for example can be pipe or the inner coldplate that is formed with cooling-water duct of flow of cooling water.When being the latter, strengthening part 90 can be made of coldplate itself.
Fig. 8 is that expression possesses the stereogram based on the single-piece state of the rear fender 13 ' of the segmenting structure of embodiment 2.
The direction of cutting apart that direction is different from above-mentioned rear fender 13 based on embodiment 1 of cutting apart based on the rear fender 13 ' of the present embodiment 2.Particularly, rear fender 13 ' is to consist of in conjunction with 2 dividing body 13A ' cutting apart with magnetic field parallel surface X2 and dividing body 13B '.At this moment, dividing body 13A ' and the combination of shape and state of dividing body 13B ' mutually to be electrically insulated.For example, dividing body 13A ' and dividing body 13B ' can be via insulating element with mode combinations spaced apart from each other.At this moment, form air layer (insulating barrier) between dividing body 13A ' and the dividing body 13B ', insulating properties is guaranteed.Perhaps, the faying face of dividing body 13A ' and dividing body 13B ' also can coat (for example lamination) insulating materials.In addition, dividing body 13A ' and dividing body 13B ' can be combined into such as the combining form with reference to figure 6 explanations, also can arrange such as the strengthening part 90 with reference to figure 7 explanations.
Magnetic field parallel surface X2 is the parallel surface that is formed at the magnetic field (magnetic line of force P that schematically illustrates in reference to figure 4) of rear fender 13 ' and adsorption plate 22 when electromagnet 49 drives.Thus, parallel surface X2 in magnetic field is equivalent to the face parallel with cross section shown in Figure 4.
According to this segmenting structure also with above-mentioned segmenting structure based on embodiment 1 similarly, the path (with reference to figure 5(A) of the eddy current around the hole 41 that center-pole is used) divided (being magnetic field parallel surface X2) cut off.So, the response in the time of can improving by the stream that suitably changes eddy current electromagnet 49 driving.And, (namely 2 dividing body 13A ' and dividing body 13B ' faying face each other) is magnetic field parallel surface X2 because the divisional plane of rear fender 13 ', therefore can not produce magnetic gap, and the impact that the output of cutting apart when driving for electromagnet 49 can be produced is suppressed at Min..
In addition, rear fender 13 ' is split into 2 in the present embodiment 2, and cutting apart quantity can be any.That is, rear fender 13 ' also can be divided into more than 3 abreast with magnetic field parallel surface X2.And in the present embodiment 2,2 dividing body 13A ' and dividing body 13B ' are divided in the substantial middle (central authorities of left and right directions h) of rear fender 13 ', but rear fender 13 ' also can be divided in the optional position of left and right directions h.
And, also can make up with above-mentioned segmenting structure based on embodiment 1 based on the segmenting structure of the present embodiment 2.That is, rear fender 13 ' can be further divided by magnetic field plane of symmetry X1 institute.
In addition, in above-described embodiment, " the 1st fixed part " the corresponding fixation clip 11 in the technical scheme, " the 1st movable member " in the technical scheme but correspondence dynamic pressure plate 12.And, " the 2nd fixed part " corresponding rear fender 13 and rear fender 13 ' in the technical scheme, " the 2nd movable member " the corresponding adsorption plate 22 in the technical scheme.
The present invention is not limited to above-described embodiment, in not departing from the scope of the present invention, can apply various distortion and replacement to above-described embodiment.
For example, as above-mentioned, can electromagnet 49 be set in adsorption plate 22 sides, at rear fender 13 and rear fender 13 ' side the adsorption section be set.So when adsorption plate 22 sides arrange electromagnet 49, the adsorption plate 22 that forms by casting is realized that same segmenting structure gets final product.
In addition, when rear fender 13 and rear fender 13 ' side formation electromagnet 49, also can form adsorption plate 22 by casting and come adsorption plate 22 is realized same segmenting structure.Thus, be changed similarly the response in the time of therefore can helping to improve electromagnet 49 and drive at the stream of the eddy current of adsorption plate 22 sides.At this moment, preferably to be divided into the split position of rear fender 13 and rear fender 13 ' identical for adsorption plate 22.That is, adsorption plate 22 is preferably cut apart by the same divisional plane of rear fender 13 and rear fender 13 '.
And in above-described embodiment, water is used as the fluid of cooling usefulness, but also can make the fluid (for example, oil or gas etc.) beyond the water.
And, in above-described embodiment, be formed with the electromagnet 49 of a utmost point on the rear fender 13, but also can at rear fender 13 electromagnet (namely also can realize multipolarization) be set in the mode that forms a plurality of utmost points.
In addition, above-mentioned in, illustration the mold closing mechanism 10 of ad hoc structure, but as long as mold closing mechanism 10 utilize electromagnet to carry out matched moulds, then can be arbitrary structures.
At this, with reference to the later part of figure 9, characteristic structure of the present invention is described.
Fig. 9 is that expression is based on the stereogram of the single-piece state of the rear fender 113 of an embodiment (embodiment 3).Figure 10 is the cutaway view along the A-A line of Fig. 9.In addition, arrow h and arrow V represent respectively rear fender 113 in Fig. 9 and Figure 10 left and right directions (horizontal direction) and above-below direction (vertical direction).But these directions change according to the state that arranges (direction) of injection (mo(u)lding) machine, therefore use for convenient from start to finish.And arrow f represents the fore-and-aft direction of rear fender 113.
In the present embodiment, rear fender 113 comprises and is lower than the low conductive layer 180 that the material of predetermined value consists of by electrical conductivity and consists of.Preferred low conductive layer 180 is made of megohmite insulant (for example, glass substance or resin etc.).Low conductive layer 180 forms when casting rear fender 113 simultaneously.That is, rear fender 113 is inserted with in inside under the state of low conductive layer 180 by casting and forms.Low conductive layer 180 extends in the cross section of rear fender 113 with slit-shaped.In the present embodiment, the form setting of low conductive layer 180 to extend at magnetic field plane of symmetry X1.That is, low conductive layer 180 is in the form configuration of the magnetic field of rear fender 113 plane of symmetry X1 with cross-section magnetic core 146.
At this, magnetic field plane of symmetry X1 is the plane of symmetry that is formed at the magnetic field (magnetic line of force P that schematically illustrates in reference to Figure 11) of rear fender 113 and adsorption plate 122 when electromagnet 49 drives.Be monopolar configuration in this example, as shown in Figure 9, magnetic field plane of symmetry X1 is by the center of the above-below direction V of rear fender 113 and the plane parallel with the left and right directions h of rear fender 113.
Figure 12 is the key diagram of eddy current stream cutting action that possesses the rear fender 113 of low conductive layer 180, comparative example when Figure 12 (A) expression does not possess low conductive layer 180, Figure 12 (B) represents the present embodiment, is the top view of observing the rear fender 113 that disposes coil 148 from adsorption plate 122 side direction matched moulds directions.
When rear fender 113 did not possess low conductive layer 180, shown in arrow I among Figure 12 (A), at the central portion (magnetic core) of rear fender, the orifice flow that eddy current is used around center-pole was moving.As above-mentioned, the problems such as response (response of mold clamping force) when this eddy current produces deteriorated electromagnet 49 driving.To this, according to the present embodiment, owing to comprising low conductive layer 180 at magnetic field plane of symmetry X1, rear fender 113 consists of, therefore, such as arrow I among Figure 12 (B) 1And arrow I 2Shown in, it is magnetic field plane of symmetry X1 that conductive layer 180(is hanged down in the path of the eddy current around the hole that center-pole is used 141) cut off.So, the response in the time of can improving by the stream that suitably changes eddy current electromagnet 49 driving.And, because low conductive layer 180 extends at magnetic field plane of symmetry X1, therefore can not produce magnetic gap, and the impact that can the output when hanging down conductive layer 180 and drive for electromagnet 49 produces is suppressed at Min..
Low conductive layer 180 can spread all over rear fender 113 fore-and-aft direction f integral body and arrange, but for the intensity that suppresses to be caused by low conductive layer 180 descends, the residual thinner wall section 113A of preferred disposition Cheng Zaiyi side side (being fixation clip 11 sides of rear fender 113 in Fig. 9 and the example shown in Figure 10).In addition, low conductive layer 180 can be configured to the residual same thinner wall section of adsorption plate 122 sides at rear fender 113, also can be configured on the adsorption plate 122 side both sides of fixation clip 11 sides of rear fender 113 and rear fender 113 all residual thinner wall section.And, can utilize thinner wall section 113A that water cooling tube (not shown) is passed in the rear fender 113.
Similarly, low conductive layer 180 can spread all over rear fender 113 left and right directions h integral body and extend (with reference to figure 12(B)), but also can residual both ends and extend.For example, shown in Figure 12 (B), because the path of eddy current is in magnetic core 146, therefore can extend (that is, can for rear fender 113, not forming the structure of extending in the scope of groove 145 at low conductive layer 180 when the paper vertical direction of Figure 12 (B) is observed) between the two ends of magnetic core 146 on the left and right directions h.
And, as arbitrary structures, can strengthening part 190 be set at rear fender 113.The function that the intensity that these strengthening part 190 performances remedy the rear fender 113 that is caused by the insertion of hanging down conductive layer 180 descends.Thus, can improve responses by low conductive layer 180, and keep as the required intensity of rear fender 113.Strengthening part 190 typically is made of the sheet materials such as metallic plate that are electrically insulated with rear fender 113.But, as long as strengthening part 190 can be guaranteed its intensity, then also can form by (reinforced plastics) such as plastics.In addition, strengthening part 190 can be incorporated on the rear fender 113 by bolt or welding etc., also can form by inserting with rear fender 113.And strengthening part 190 can also possess cooling body.Cooling body for example can be pipe or the inner coldplate that is formed with cooling-water duct of flow of cooling water.When being the latter, strengthening part 190 can be made of coldplate itself.
And, in the example shown in Figure 10, strengthening part 190 along the bearing of trend (the left and right directions h of rear fender 113) of low conductive layer 180 with the form setting overlapping with low conductive layer 180, but the form setting that also can intersect with the bearing of trend with low conductive layer 180.
Figure 13 is that expression is based on the stereogram of the single-piece state of the rear fender 113 ' of embodiment 4.Figure 14 is the cutaway view along the B-B line of Figure 13.Similarly, among Figure 13 and Figure 14, arrow h and arrow V represent respectively the left and right directions (horizontal direction) and above-below direction (vertical direction) of rear fender 113 ', and arrow f represents the fore-and-aft direction of rear fender 113 '.
In the present embodiment 4 also with above-described embodiment 3 similarly, rear fender 113 ' comprises and is lower than the low conductive layer 180 that the material of predetermined value consists of by electrical conductivity and consists of.Low conductive layer 180 preferably is made of megohmite insulant (for example, glass substance or resin etc.), and forms simultaneously when casting rear fender 113 '.That is, rear fender 113 ' is inserted with under the state that hangs down conductive layer 180 in inside and forms by casting.Low conductive layer 180 extends in the cross section of rear fender 113 ' with slit-shaped.In the present embodiment, the form setting of low conductive layer 180 to extend at the magnetic field parallel surface.That is, low conductive layer 180 is in the upper form configuration with cross-section magnetic core 146 of the above-below direction V of rear fender 113 '.
The magnetic field parallel surface is the parallel surface that is formed at the magnetic field (magnetic line of force P that schematically illustrates in reference to Figure 11) of rear fender 113 ' and adsorption plate 122 when electromagnet 49 drives.Thus, the magnetic field parallel surface is equivalent to the face parallel with cross section shown in Figure 11.
According to the configuration of this low conductive layer 180 also with above-described embodiment 3 similarly, the path (with reference to figure 12(A) of the eddy current around the hole 141 that center-pole is used) to be hanged down conductive layer 180(be the magnetic field parallel surface to quilt) cut off.So, the response in the time of can improving by the stream that suitably changes eddy current electromagnet 49 driving.And, because low conductive layer 180 extends at the magnetic field parallel surface, therefore can not produce magnetic gap, and the impact that can the output when hanging down conductive layer 180 and drive for electromagnet 49 produces is suppressed at Min..
And, similarly, low conductive layer 180 can spread all over rear fender 113 ' fore-and-aft direction f integral body and arrange, but for the intensity that suppresses to be caused by low conductive layer 180 descends, the residual thinner wall section 113A ' of preferred disposition Cheng Zaiyi side side (being fixation clip 11 sides of rear fender 113 ' in Figure 13 and the example shown in Figure 14).In addition, low conductive layer 180 can be configured to the residual same thinner wall section of adsorption plate 122 sides at rear fender 113 ', also can be configured on the adsorption plate 122 side both sides of fixation clip 11 sides of rear fender 113 ' and rear fender 113 ' all residual thinner wall section.And, can utilize thinner wall section 113A ' that water cooling tube (not shown) is passed in the rear fender 113 '.
And, can spread all over rear fender 113 ' above-below direction V integral body and extend, but also can residual both ends and extend.For example, shown in Figure 12 (B), because the path of eddy current is in magnetic core 146, therefore can (that is, can rear fender 113 ', not form for low conductive layer 180 when observing with the same paper vertical direction of Figure 12 (B) structure of extension in the scope of groove 145 extending between the two ends of magnetic core 146 on the above-below direction V.）
And, as arbitrary structures, can strengthening part 190 be set at rear fender 113 '.The function that the intensity that these strengthening part 190 performances remedy the rear fender 113 ' that is caused by the insertion of hanging down conductive layer 180 descends.Thus, can improve responses by low conductive layer 180, and keep as the required intensity of rear fender 113 '.Strengthening part 190 typically is made of the sheet materials such as metallic plate that are electrically insulated with rear fender 113 '.But, as long as strengthening part 190 can be guaranteed its intensity, then also can form by (reinforced plastics) such as plastics.In addition, strengthening part 190 can be incorporated on the rear fender 113 ' by bolt or welding etc., also can form by inserting with rear fender 113 '.And strengthening part 190 can also possess cooling body.Cooling body for example can be pipe or the inner coldplate that is formed with cooling-water duct of flow of cooling water.When being the latter, strengthening part 190 can be made of coldplate itself.
And, in the example shown in Figure 14, the direction (the left and right directions h of rear fender 113 ') that strengthening part 190 intersects at the bearing of trend (the above-below direction V of rear fender 113 ') with low conductive layer 180 arranges, but also can be along the bearing of trend (the above-below direction V of rear fender 113 ') of low conductive layer 180 with the form setting overlapping with low conductive layer 180.And strengthening part 190 can be arranged in parallel a plurality of.
In addition, in the present embodiment 4, dispose 2 low conductive layers 180 on the rear fender 113 ', but the quantity of low conductive layer 180 can be any.That is, can configure abreast with the magnetic field parallel surface the low conductive layer 180 of any amount on the rear fender 113 '.
In addition, based on the structure of the present embodiment 4 can also with above-mentioned textural association based on embodiment 3.That is, rear fender 113 ' can possess the low conductive layer 180 that appends that extends at magnetic field plane of symmetry X1.
In addition, in above-described embodiment, " the 1st fixed part " the corresponding fixation clip 11 in the technical scheme, " the 1st movable member " in the technical scheme but correspondence dynamic pressure plate 12.And, " the 2nd fixed part " corresponding rear fender 113 and rear fender 113 ' in the technical scheme, " the 2nd movable member " the corresponding adsorption plate 122 in the technical scheme.
The present invention is not limited to above-described embodiment, in not departing from the scope of the present invention, can apply various distortion and replacement to above-described embodiment.
For example, as above-mentioned, can electromagnet 49 be set in adsorption plate 122 sides, at rear fender 113 and rear fender 113 ' side the adsorption section be set.So when adsorption plate 122 sides arrange electromagnet 49, the adsorption plate 122 that forms by casting is realized that the structure that comprises same low conductive layer 180 gets final product.
In addition, when rear fender 113 and rear fender 113 ' side formation electromagnet 49, also can form the structure that adsorption plate 122 come adsorption plate 122 is realized comprising same low conductive layer 180 by casting.Thus, change similarly the stream of eddy current in adsorption plate 122 sides, the response in the time of therefore can helping to improve electromagnet 49 driving.At this moment, adsorption plate 122 preferably possesses low conductive layer in the position corresponding with the position with low conductive layer 180 of rear fender 113 and rear fender 113 '.That is, adsorption plate 122 preferably possesses low conductive layer in the same face of rear fender 113 and rear fender 113 '.
In addition, in above-described embodiment, low conductive layer 180 is made of megohmite insulant, and megohmite insulant can be air.That is, low conductive layer 180 can be made of air layer.
And in above-described embodiment, water is used as the fluid of cooling usefulness, but also can make the fluid (for example, oil or gas etc.) beyond the water.
And, in above-described embodiment, be formed with the electromagnet 49 of a utmost point on the rear fender 113, but also can on rear fender, 113 electromagnet (namely also can realize multipolarization) be set in the mode that forms a plurality of utmost points.
In addition, above-mentioned in, illustration the mold closing mechanism 10 of ad hoc structure, but as long as mold closing mechanism 10 utilize electromagnet to carry out matched moulds, then can be arbitrary structures.

Claims (13)

1. injection (mo(u)lding) machine is characterized in that possessing:
The 1st fixed part, it is equipped with cover half;
The 2nd fixed part, it sets as opposed with described the 1st fixed part;
The 1st movable member, it is equipped with dynamic model; And
The 2nd movable member, itself and described the 1st movable member link and together move with described the 1st movable member,
Described the 2nd fixed part and described the 2nd movable member consist of the mold clamping force generation mechanism that produces mold clamping force by the absorption affinity of electromagnet,
At least any one party parts in described the 2nd fixed part and the 2nd movable member consist of in conjunction with the dividing body more than 2.
2. injection (mo(u)lding) machine as claimed in claim 1, wherein,
Described dividing body is each other with the combination of shape and state of mutually insulated.
3. injection (mo(u)lding) machine as claimed in claim 1 or 2, wherein,
Described dividing body is each other with mode combination spaced apart from each other.
4. such as each described injection (mo(u)lding) machine in the claim 1～3, wherein,
Between the described dividing body in the plane of symmetry or the parallel surface combination in the magnetic field that disposes the parts that form described magnet spool.
5. such as each described injection (mo(u)lding) machine in the claim 1～4, wherein,
This injection (mo(u)lding) machine possesses the strengthening part of strengthening the joint portion between the described dividing body.
6. injection (mo(u)lding) machine as claimed in claim 5, wherein,
At described strengthening part cooling body is set.
7. such as each described injection (mo(u)lding) machine in the claim 1～6, wherein,
Described the 2nd fixed part and described the 2nd movable member all consist of in conjunction with the dividing body more than 2, and the faying face of dividing body that consists of described the 2nd fixed part is identical with the faying face of the dividing body that consists of described the 2nd movable member.
8. injection (mo(u)lding) machine is characterized in that possessing:
The 1st fixed part, it is equipped with cover half;
The 2nd fixed part, it sets as opposed with described the 1st fixed part;
The 1st movable member, it is equipped with dynamic model; And
The 2nd movable member, itself and described the 1st movable member link and together move with described the 1st movable member,
Described the 2nd fixed part and described the 2nd movable member consist of the mold clamping force generation mechanism that produces mold clamping force by the absorption affinity of electromagnet,
At least any one party parts in described the 2nd fixed part and described the 2nd movable member are made of foundry goods, and this foundry goods comprises and is lower than the low conductive layer that the material of predetermined value consists of by electrical conductivity and consists of.
9. injection (mo(u)lding) machine as claimed in claim 8, wherein,
The plane of symmetry or parallel surface in the magnetic field that disposes the parts that form described magnet spool configure described low conductive layer.
10. injection (mo(u)lding) machine as claimed in claim 8 or 9, wherein,
Described low conductive layer is arranged at the part in the cross section that disposes the parts that form described magnet spool.
11. injection (mo(u)lding) machine as claimed in claim 10, wherein,
In disposing the parts that form described magnet spool, do not exist the position of described low conductive layer that cooling body is set.
12. such as each described injection (mo(u)lding) machine in the claim 8～11, wherein,
This injection (mo(u)lding) machine possesses the strengthening part of strengthening described foundry goods.
13. injection (mo(u)lding) machine as claimed in claim 12, wherein,
At described strengthening part cooling body is set.
CN201210356856.3A 2011-09-22 2012-09-21 Injection (mo(u)lding) machine Expired - Fee Related CN103009586B (en)

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