CN103009586B - Injection (mo(u)lding) machine - Google Patents

Injection (mo(u)lding) machine Download PDF

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Publication number
CN103009586B
CN103009586B CN201210356856.3A CN201210356856A CN103009586B CN 103009586 B CN103009586 B CN 103009586B CN 201210356856 A CN201210356856 A CN 201210356856A CN 103009586 B CN103009586 B CN 103009586B
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CN
China
Prior art keywords
injection
lding
movable member
rear fender
fixed part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201210356856.3A
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Chinese (zh)
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CN103009586A (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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Publication date
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
Expired - Fee Related legal-status Critical Current
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Classifications

    • 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

Abstract

The invention provides a kind of injection (mo(u)lding) machine, its stream suitably blocking eddy current is to improve response.Injection (mo(u)lding) machine of the present invention, possesses: the 1st fixed part, and it is provided with cover half; 2nd fixed part, it arranges as opposed with the 1st fixed part; 1st movable member, it is provided with dynamic model; And the 2nd movable member, itself and the 1st movable member link and together move with the 1st movable member, 2nd fixed part and the 2nd movable member form the mold clamping force producing mold clamping force by the absorption affinity of electromagnet and produce mechanism, and at least any one party parts in the 2nd fixed part and the 2nd movable member are formed in conjunction with the dividing body of more than 2.

Description

Injection (mo(u)lding) machine
The application advocates the priority of No. 2011-208154th, Japanese patent application and No. 2011-208155 of applying for based on September 22nd, 2011.The full content of this application is by reference to being applied in this description.
Technical field
The present invention relates to a kind of injection (mo(u)lding) machine possessing the electromagnet driving mould assembling action.
Background technology
In the past, in injection (mo(u)lding) machine, from the injection nozzle injection resin of injection device, and be filled in the cavity space between cover half and dynamic model, and make it solidify, thus obtain products formed.Further, mold closing mechanism is arranged to move dynamic model relative to cover half to carry out mold closing, matched moulds and die sinking.
This mold closing mechanism have by hydraulic cylinder for oil supply and driven fluid pressure type mold closing mechanism and the electrodynamic type mold closing mechanism that driven by motor, this electrodynamic type mold closing mechanism due to controllability higher, can not pollute periphery, and energy efficiency is higher, is therefore widely used.Now, by drive motor, ball-screw is rotated and produce thrust, 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, be therefore difficult to change mold clamping force in the characteristic of this toggle mechanism, response and less stable, cannot control mold clamping force in forming process.Therefore, the mold closing mechanism that the thrust produced by ball-screw directly can be used as mold clamping force is provided.Now, due to the torque of motor and mold clamping force proportional, therefore, it is possible to control mold clamping force in forming process.
But in mold closing mechanism in the past, the resistance to load of ball-screw is lower, cannot produce larger mold clamping force, and mold clamping force can change because resulting from the torque pulsation of motor.Further, in order to produce mold clamping force, need all the time to motor supply electric current, power consumption and the heating quantitative change of motor are many, therefore need the specified output of motor correspondingly to strengthen, cause the cost of mold closing mechanism to uprise.
Therefore, take into account the mold closing mechanism (such as, patent document 1) utilizing the absorption affinity of electromagnet for mould on-off action use line motor for mould assembling action.
Patent document 1: International Publication No. 05/090052 pamphlet
But when the use for recording in such as patent document 1 utilizes the structure of the mold closing mechanism of the absorption affinity of electromagnet, the operating lag caused because of the generation of eddy current or iron loss and the heating etc. caused thus are a problem.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of stream that suitably can 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 provided with cover half; 2nd fixed part, it arranges as opposed with described 1st fixed part; 1st movable member, it is provided with dynamic model; And the 2nd movable member, itself and described 1st movable member link and together move with described 1st movable member, described 2nd fixed part and described 2nd movable member form the mold clamping force producing mold clamping force by the absorption affinity of electromagnet and produce mechanism, and at least any one party parts in described 2nd fixed part and described 2nd movable member are formed in conjunction with the dividing body of more than 2.
Further, 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 provided with cover half; 2nd fixed part, it arranges as opposed with described 1st fixed part; 1st movable member, it is provided with dynamic model; And the 2nd movable member, itself and described 1st movable member link and together move with described 1st movable member, described 2nd fixed part and described 2nd movable member form the mold clamping force producing mold clamping force by the absorption affinity of electromagnet and produce mechanism, at least any one party parts in described 2nd fixed part and described 2nd movable member are made up of foundry goods, and this foundry goods comprises the low conductive layer that is made up of lower than the material of predetermined value electrical conductivity and forms.
Invention effect:
The injection (mo(u)lding) machine that a kind of stream that suitably can block eddy current improves response can be obtained according to the present invention.
Accompanying drawing explanation
The figure of state when Fig. 1 is the mold closing mechanism mold closing represented in the injection (mo(u)lding) machine of embodiments of the present invention.
The figure of state when Fig. 2 is the mold closing mechanism die sinking represented in the injection (mo(u)lding) machine of embodiments of the present invention.
Fig. 3 is the stereogram of the single-piece state of the rear fender 13 representing the segmenting structure possessed based on 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 the eddy current stream cutting action of the rear fender 13 possessing segmenting structure.
Fig. 6 is the figure of an example of the combining form represented between dividing body 13A and dividing body 13B.
Fig. 7 is the figure of an example of the strengthening part 90 representing the joint portion be arranged between dividing body 13A and dividing body 13B.
Fig. 8 is the stereogram of the single-piece state of the rear fender 13 possessed based on the segmenting structure of embodiment 2.
Fig. 9 is the stereogram of the single-piece state of the rear fender 113 represented based on embodiment 3.
Figure 10 is the sectional view of the A-A line along Fig. 9.
Figure 11 is the key diagram of the plane of symmetry in magnetic field.
Figure 12 is the key diagram of the eddy current stream cutting action of the rear fender 113 possessing low conductive layer 180.
Figure 13 is the stereogram of the single-piece state of the rear fender 113 ' represented based on embodiment 4.
Figure 14 is the sectional view of the B-B line along Figure 13.
In figure: Br1-parts of bearings, Fr-framework, Gd-guiding piece, 10-mold closing mechanism, 11-fixation clip, 12-movable pressure plate, 13, 13 ', 113, 113 '-rear fender, 13A, 13B, 13A ', 13B '-dividing body, 113A, 113A '-thinner wall section, 14-connecting rod, 15-cover half, 16-dynamic model, 17-injection device, 18-injection nozzle, 19-die device, 22, 122-adsorption plate, 28-line motor, 29-stator, 31-mover, 33-magnetic pole tooth, 34-magnetic core, 35-coil, 37-electromagnet unit, 39-center-pole, 41, 141-hole, 45, 145-groove, 46, 146-magnetic core, 47, 147-yoke, 48, 148-coil, 49-electromagnet, 51-adsorption section, 55-loading detection device, 60-control part, 61-mould opening and closing handling part, 62-matched moulds handling part, 131-protuberance, 132-recess, 136-insulating materials, 138-insulating element, the low conductive layer of 180-, 90, 190-strengthening part, the X1-magnetic field plane of symmetry, X2-magnetic field parallel surface.
Detailed description of the invention
Below, with reference to accompanying drawing, be described for implementing best mode of the present invention.In addition, in present embodiment, about mold closing mechanism, the moving direction of movable pressure plate when carrying out mold closing is set to front, the moving direction of movable pressure plate when carrying out die sinking is set to rear, about injection device, the moving direction of screw rod when injecting is set to front, the moving direction of screw rod when measuring is set to rear to be described.
The figure of the state when figure of state when Fig. 1 is the mold closing mechanism mold closing represented in the injection (mo(u)lding) machine of embodiments of the present invention, Fig. 2 are the mold closing mechanism die sinkings represented in the injection (mo(u)lding) machine of embodiments of the present invention.In addition, in Fig. 1 and Fig. 2, be decorated with hatched parts and major section is shown.
In figure, 10 is mold closing mechanism, Fr is the framework (support) of injection (mo(u)lding) machine, Gd is the guiding piece relative to this framework Fr activity, 11 for being placed in the fixation clip on not shown guiding piece or on framework Fr, opposed with fixation clip 11 arrange rear fender 13 with this fixation clip 11 across predetermined space, set up between fixation clip 11 and rear fender 13 in 4 connecting rod 14(figure, 2 in 4 connecting rods 14 are only shown).In addition, rear fender 13 is fixed relative to framework Fr.
Form threaded portion (not shown) in the leading section (being right part in figure) of connecting rod 14, be anchored on this threaded portion by being screwed togather by nut n1, fixation clip 11 is fixed in the leading section of connecting rod 14.The rearward end of connecting rod 14 is fixed on rear fender 13.
Further, opposed with fixation clip 11 and movably arrange movable pressure plate 12 to mould opening and closing direction along connecting rod 14.For this reason, movable pressure plate 12 is fixed on guiding piece Gd, and position corresponding with connecting rod 14 in movable pressure plate 12 forms not shown guide hole for making connecting rod 14 run through or notch part.In addition, guiding piece Gd is also fixed with adsorption plate 22 described later.
Further, fixation clip 11 is installed cover half 15, movable pressure plate 12 is installed dynamic model 16, cover half 15 and dynamic model 16 separate along with the advance and retreat of movable pressure plate 12, carry out mold closing, matched moulds and die sinking.In addition, along with carrying out matched moulds, between cover half 15 and dynamic model 16, form not shown cavity space, the not shown resin filling penetrated from the injection nozzle 18 of injection device 17 is in cavity space.In addition, die device 19 is formed by cover half 15 and dynamic model 16.
Adsorption plate 22 and movable pressure plate 12 are fixed on guiding piece Gd abreast.Thus, adsorption plate 22 is more more rearward than rear fender 13 free to advance or retreat.Adsorption plate 22 can be formed by magnetic material.Such as, adsorption plate 22 can be made up of electromagnetism stacked steel plate, and this electromagnetism stacked steel plate is formed by the stacked thin plate be made up of ferromagnetic.Or adsorption plate 22 is also formed by casting.
Line motor 28 is arranged on guiding piece Gd to make movable pressure plate 12 retreat.Line motor 28 possesses stator 29 and mover 31, and stator 29 is formed as parallel with guiding piece Gd and corresponding with the moving range of movable pressure plate 12 on framework Fr, and mover 31 is formed as opposed with stator 29 and throughout preset range in the lower end of movable pressure plate 12.
Mover 31 possesses magnetic core 34 and coil 35.Further, magnetic core 34 possesses to be given prominence to and the multiple magnetic pole tooths 33 formed with preset space length towards stator 29, and coil 35 package is on each magnetic pole tooth 33.In addition, magnetic pole tooth 33 is formed as being parallel to each other on the direction at a right angle relative to the moving direction of movable pressure plate 12.Further, stator 29 possesses not shown magnetic core and extends on this magnetic core and the not shown permanent magnet of formation.Alternately this permanent magnet is formed by magnetic by making each magnetic pole of N pole and S pole.If drive line motor 28 by supplying scheduled current to coil 35, then mover 31 is retreated, and with this, movable pressure plate 12 is retreated by guiding piece Gd, thus can carry out mold closing and die sinking.
In addition, in present embodiment, permanent magnet is disposed on stator 29, and coil 35 is disposed on mover 31, but also coil can be disposed on stator, and permanent magnet is disposed on mover.Now, coil can not move along with the driving of line motor 28, therefore, it is possible to carry out like a cork for the distribution to coil supply electric power.
In addition, be not limited on guiding piece Gd, fix movable pressure plate 12 and the structure of adsorption plate 22, also can be set to the structure mover 31 of line motor 28 being arranged at movable pressure plate 12 or adsorption plate 22.Further, be not limited to line motor 28 as mould switching mechanism, also can be fluid pressure type or electrodynamic type etc.
If movable pressure plate 12 is front and then dynamic model 16 abuts against with cover half 15, then carries out mold closing, then, carry out matched moulds.The electromagnet unit 37 for carrying out matched moulds is arranged between rear fender 13 and adsorption plate 22.Further, movably arrange and run through rear fender 13 and adsorption plate 22 and extend and link the center-pole 39 of movable pressure plate 12 and adsorption plate 22.This center-pole 39 when mold closing and die sinking time and the advance and retreat of movable pressure plate 12 link and adsorption plate 22 retreated, and when matched moulds, the absorption affinity produced by electromagnet unit 37 is passed to movable pressure plate 12.
In addition, mold closing mechanism 10 is formed by fixation clip 11, movable pressure plate 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 being formed at rear fender 13 side and the adsorption section 51 being formed at adsorption plate 22 side.Further, at the predetermined portions of the rear end face of rear fender 13, be form groove 45 around center-pole 39 in present embodiment, forming magnetic core 46 more in the inner part than groove 45, and in formation yoke 47 more more outward than groove 45.Further, in groove 45, around magnetic core 46 package coil 48.In addition, magnetic core 46 and yoke 47 can be made up of the integrative-structure of foundry goods.
In addition, in present embodiment, can separate with rear fender 13 and form electromagnet 49, and separate with adsorption plate 22 and 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 is formed.Further, also electromagnet and adsorption section can be configured on the contrary.Such as, electromagnet 49 can be set in adsorption plate 22 side, adsorption section is set in rear fender 13 side.
In electromagnet unit 37, if supply electric current to coil 48, then electromagnet 49 is adsorbed adsorption section 51 by driving, thus can produce mold clamping force.
Center-pole 39 is arranged to and links in rearward end and adsorption plate 22 and link in leading section and movable pressure plate 12.Therefore, center-pole 39 when mold closing and movable pressure plate 12 together before so that adsorption plate 22 is advanced, and when die sinking and movable pressure plate 12 together retreat and adsorption plate 22 retreated.For this reason, form hole 41 for making center-pole 39 run through at the middle body of rear fender 13, the opening in the face of the leading section in hole 41 and arrange the parts of bearings Br1 such as the lining of bearing center bar 39 sliding freely.
The line motor 28 of mold closing mechanism 10 and the driving of electromagnet 49 is controlled by control part 60.Control part 60 possesses CPU and memory etc., also possesses the circuit for supplying electric current to the coil 35 of line motor 28 or the coil 48 of electromagnet 49 according to the result calculated by CPU.Control part 60 is also connected with loading detection device 55.Loading detection device 55 is arranged at the precalculated position (precalculated position between fixation clip 11 and rear fender 13) of at least 1 connecting rod 14 in mold closing mechanism 10, detects the load putting on this connecting rod 14.The example that loading detection device 55 is set on upper and lower 2 connecting rods 14 is shown with in figure.Loading detection device 55 is such as made up of the sensor of the elongation detecting connecting rod 14.The load detected by loading detection device 55 is sent to control part 60.In addition, control part 60 is omitted in fig. 2 for simplicity.
Then, the action of mold closing mechanism 10 is described.
Mold closing operation is controlled by the mould opening and closing handling part 61 of control part 60.Under the state (state during die sinking) of Fig. 2, mould opening and closing handling part 61 supplies electric current to coil 35.Then, by driving, movable pressure plate 12 advances line motor 28, and as shown in Figure 1, dynamic model 16 and cover half 15 abut against.Now, between rear fender 13 and adsorption plate 22, namely between electromagnet 49 and adsorption section 51, form gap delta.In addition, compared with mold clamping force, the power needed for mold closing is very little.
Then, the matched moulds handling part 62 of control part 60 controls matched moulds operation.Matched moulds handling part 62 supplies electric current to coil 48, is adsorbed adsorption section 51 by the absorption affinity of electromagnet 49.With this, mold clamping force is passed to movable pressure plate 12 via adsorption plate 22 and center-pole 39, thus carries out matched moulds.Mold clamping force is when changing when starting matched moulds etc., and matched moulds handling part 62 controls, by order to produce by the target mold clamping force under the deserved target mold clamping force of this change and stable state, required stable current value is supplied in coil 48.
In addition, mold clamping force is detected by loading detection device 55.The mold clamping force detected is sent to control part 60, in control part 60, adjusts the electric current being supplied in coil 48 in order to make mold clamping force become setting value, and carries out FEEDBACK CONTROL.During this period, the resin of melting in injection device 17 penetrates from injection nozzle 18, and is filled in the cavity space of die device 19.
If the resin in cavity space cools and solidifies, then mould opening and closing handling part 61 controls die sinking operation.Under the state of Fig. 1, matched moulds handling part 62 stops supplying electric current to coil 48.With this, by driving, movable pressure plate 12 retreats line motor 28, and as shown in Figure 2, dynamic model 16 is placed in retrogressing restraining position, thus carries out die sinking.
At this, with reference to the part that figure 3 is later, characteristic structural of the present invention is described.
Fig. 3 is the stereogram of the single-piece state of the rear fender 13 representing the segmenting structure possessed based on an embodiment (embodiment 1).In addition, arrow h and arrow V represents the left and right directions (horizontal direction) of rear fender 13 and above-below direction (vertical direction) respectively in figure 3.But these directions change due to the state that arranges (direction) according to injection (mo(u)lding) machine, be therefore use for convenience from start to finish.Further, arrow f represents the front of rear fender 13.Fig. 4 is the key diagram of the plane of symmetry in magnetic field, is to schematically illustrate with the sectional view of the rear fender 13 of cross-section with adsorption plate 22.
In the present embodiment, rear fender 13 combines and is formed with 2 dividing body 13A of magnetic field plane of symmetry X1 segmentation and dividing body 13B.Now, dividing body 13A and dividing body 13B is with the combination of shape and state be electrically insulated each other.Such as, dividing body 13A and dividing body 13B can combine in mode spaced apart from each other via insulating element.Now, between dividing body 13A and dividing body 13B, form air layer (insulating barrier), insulating properties is guaranteed.Or, also can coated (such as lamination) insulating materials at the faying face of dividing body 13A and dividing body 13B.
At this, magnetic field plane of symmetry X1 is the plane of symmetry in the magnetic field (magnetic line of force P with reference to schematically illustrating in figure 4) being formed at 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 center by 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 the eddy current stream cutting action of the rear fender 13 possessing segmenting structure, comparative example when Fig. 5 (A) represents non-division, Fig. 5 (B) represents the present embodiment, is to observe the top view being configured with the rear fender 13 of coil 48 from adsorption plate 22 side direction matched moulds direction.
When rear fender 13 is non-division, as shown in arrow I in Fig. 5 (A), at the central portion (magnetic core) of rear fender, eddy current flows around the hole of center-pole.As above-mentioned, this eddy current produces the problems such as the response (response of mold clamping force) when deteriorated electromagnet 49 drives.To this, according to the present embodiment, formed, therefore as arrow I in Fig. 5 (B) with 2 dividing body 13A of magnetic field plane of symmetry X1 segmentation and dividing body 13B because rear fender 13 combines 1and arrow I 2shown in, divided of the path (i.e. magnetic field plane of symmetry X1) of the eddy current around the hole 41 of center-pole cut off.So, response when electromagnet 49 drives can be improved by the stream suitably changing eddy current.And, because the divisional plane (i.e. 2 dividing body 13A and dividing body 13B faying face each other) of rear fender 13 is magnetic field plane of symmetry X1, therefore magnetic gap can not be produced, and the impact that output when segmentation can be driven for electromagnet 49 produces suppresses in Min..
Fig. 6 is the figure of an example of the combining form represented between dividing body 13A and dividing body 13B.In addition, for simplicity, in Fig. 6, rear fender 13 is shown with the halfbody of a wherein side with 1/2 model, also can be identical about the opposing party's halfbody.
As shown in Figure 6, dividing body 13A and dividing body 13B can by combining via the recess 132 of insulating element 136 and insulating element 138 and the Qian He of protuberance 131.Specifically, dividing body 13A has protuberance 131 at the faying face with dividing body 13B, and correspondingly, dividing body 13B has recess 132 at the faying face with dividing body 13A.The coated protuberance 131 of insulating element 136, insulating element 138 is arranged in recess 132.In addition, the height of protuberance 131 can be set greater than the degree of depth of recess 132, thus, the faying face of dividing body 13A and dividing body 13B can be made after bonding to be spaced apart at a predetermined distance from each other.
Fig. 7 is the figure of an example of the strengthening part 90 representing the joint portion be arranged between dividing body 13A and dividing body 13B.In addition, for simplicity, in Fig. 7, rear fender 13 is shown with the halfbody of a wherein side with 1/2 model, 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.This strengthening part 90 plays the function made up by splitting the intensity decline caused.Thereby, it is possible to improve response by segmentation, and be maintained as the intensity needed for rear fender 13.In example shown in Fig. 7, strengthening part 90 is made up of sheet materials such as the metallic plates be electrically insulated with rear fender 13.But, as long as strengthening part 90 can guarantee 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 dividing body 13B by bolt or welding etc.Now, strengthening part 90 also plays in conjunction with dividing body 13A and dividing body 13B function each other.
Further, strengthening part 90 can possess cooling body.Cooling body such as can be formed with the coldplate of cooling-water duct for the pipe of flow of cooling water or inside.When for the latter, strengthening part 90 can be made up of coldplate itself.
Fig. 8 is the stereogram of the single-piece state of the rear fender 13 ' representing the segmenting structure possessed based on embodiment 2.
Segmentation direction based on the rear fender 13 ' of the present embodiment 2 is different from the segmentation direction of the above-mentioned rear fender 13 based on embodiment 1.Specifically, rear fender 13 ' combines with 2 dividing body 13A ' of magnetic field parallel surface X2 segmentation and dividing body 13B ' and formed.Now, dividing body 13A ' and dividing body 13B ' is with the combination of shape and state be mutually electrically insulated.Such as, dividing body 13A ' and dividing body 13B ' can combine in mode spaced apart from each other via insulating element.Now, form air layer (insulating barrier) between dividing body 13A ' and dividing body 13B ', insulating properties is guaranteed.Or the faying face of dividing body 13A ' and dividing body 13B ' also can coated (such as lamination) insulating materials.In addition, dividing body 13A ' and dividing body 13B ' can be combined into the combining form as illustrated with reference to figure 6, also can arrange the strengthening part 90 as illustrated with reference to figure 7.
Magnetic field parallel surface X2 is the parallel surface in the magnetic field (magnetic line of force P with reference to schematically illustrating in figure 4) being formed at rear fender 13 ' and adsorption plate 22 when electromagnet 49 drives.Thus, parallel surface X2 in magnetic field is equivalent to the face with the cross-section parallel shown in Fig. 4.
According to this segmenting structure also in the same manner as the above-mentioned segmenting structure based on embodiment 1, the path (with reference to figure 5(A) of the eddy current around the hole 41 of center-pole) divided (i.e. magnetic field parallel surface X2) cut off.So, response when electromagnet 49 drives can be improved by the stream suitably changing eddy current.And, because the divisional plane (i.e. 2 dividing body 13A ' and dividing body 13B ' faying face each other) of rear fender 13 ' is magnetic field parallel surface X2, therefore magnetic gap can not be produced, and the impact that output when segmentation can be driven for electromagnet 49 produces suppresses in Min..
In addition, in the present embodiment 2, rear fender 13 ' is split into 2, and dividing number can be any.That is, rear fender 13 ' also can be divided into more than 3 with magnetic field parallel surface X2 abreast.Further, 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.
Further, the segmenting structure based on the present embodiment 2 also can combine with the above-mentioned segmenting structure based on embodiment 1.That is, rear fender 13 ' can be divided further by magnetic field plane of symmetry X1 institute.
In addition, in above-described embodiment, " the 1st fixed part " the corresponding fixation clip 11 in technical scheme, " the 1st movable member " the corresponding movable pressure plate 12 in technical scheme.Further, " the 2nd fixed part " the corresponding rear fender 13 in technical scheme and rear fender 13 ', " the 2nd movable member " corresponding adsorption plate 22 in technical scheme.
The present invention is not limited to above-described embodiment, without departing from the scope of the present invention, can apply various distortion and replacement to above-described embodiment.
Such as, as above-mentioned, electromagnet 49 can be set in adsorption plate 22 side, adsorption section is set at rear fender 13 and rear fender 13 ' side.So when adsorption plate 22 side arranges electromagnet 49, same segmenting structure is realized to the adsorption plate 22 formed by casting.
In addition, when rear fender 13 and rear fender 13 ' side form electromagnet 49, also can form adsorption plate 22 by casting and same segmenting structure is realized to adsorption plate 22.Thus, be changed similarly at the stream of the eddy current of adsorption plate 22 side, therefore, it is possible to contribute to improving response when electromagnet 49 drives.Now, adsorption plate 22 is preferably divided into the split position of rear fender 13 and rear fender 13 ' identical.That is, adsorption plate 22 preferably split by the same divisional plane of rear fender 13 and rear fender 13 '.
Further, in above-described embodiment, water is used as the fluid of cooling, but also can use the fluid (such as, oil or gas etc.) beyond water.
Further, in above-described embodiment, rear fender 13 is formed with the electromagnet 49 of a pole, but also electromagnet (namely also can realize multipolarization) can be set on rear fender 13 in the mode forming multiple pole.
In addition, in above-mentioned, exemplified with the mold closing mechanism 10 of ad hoc structure, as long as but mold closing mechanism 10 utilizes electromagnet to carry out matched moulds, then can be arbitrary structures.
At this, with reference to the part that figure 9 is later, characteristic structural of the present invention is described.
Fig. 9 is the stereogram of the single-piece state of the rear fender 113 represented based on an embodiment (embodiment 3).Figure 10 is the sectional view of the A-A line along Fig. 9.In addition, in Fig. 9 and Figure 10, arrow h and arrow V represents the left and right directions (horizontal direction) of rear fender 113 and above-below direction (vertical direction) respectively.But these directions change according to the state that arranges (direction) of injection (mo(u)lding) machine, be therefore use for convenience from start to finish.Further, arrow f represents the fore-and-aft direction of rear fender 113.
In the present embodiment, rear fender 113 comprises the low conductive layer 180 that is made up of lower than the material of predetermined value electrical conductivity and forms.Preferred low conductive layer 180 is made up of megohmite insulant (such as, glass substance or resin etc.).Low conductive layer 180 after casting pressing plate 113 time formed simultaneously.That is, formed by casting under the state that rear fender 113 is inserted with low conductive layer 180 in inside.Low conductive layer 180 extends in the cross section of rear fender 113 with slit-shaped.In the present embodiment, low conductive layer 180 is arranged with the form extended at magnetic field plane of symmetry X1.That is, low conductive layer 180 configures with the form of cross-section magnetic core 146 at the magnetic field plane of symmetry X1 of rear fender 113.
At this, magnetic field plane of symmetry X1 is the plane of symmetry in the magnetic field (magnetic line of force P with reference to schematically illustrating in Figure 11) being formed at 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 center by 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 the eddy current stream cutting action of the rear fender 113 possessing low conductive layer 180, Figure 12 (A) represents comparative example when not possessing low conductive layer 180, Figure 12 (B) represents the present embodiment, is to observe the top view being configured with the rear fender 113 of coil 148 from adsorption plate 122 side direction matched moulds direction.
When rear fender 113 does not possess low conductive layer 180, as shown in arrow I in Figure 12 (A), at the central portion (magnetic core) of rear fender, eddy current flows around the hole of center-pole.As above-mentioned, this eddy current produces the problems such as the response (response of mold clamping force) when deteriorated electromagnet 49 drives.To this, according to the present embodiment, form because rear fender 113 comprises low conductive layer 180 on the plane of symmetry X1 of magnetic field, therefore, as arrow I in Figure 12 (B) 1and arrow I 2shown in, the path of the eddy current around the hole 141 of center-pole is by low conductive layer 180(and magnetic field plane of symmetry X1) cut off.So, response when electromagnet 49 drives can be improved by the stream suitably changing eddy current.Further, because low conductive layer 180 extends on the plane of symmetry X1 of magnetic field, therefore magnetic gap can not be produced, and the impact that output when low conductive layer 180 can be driven for electromagnet 49 produces suppresses in Min..
Low conductive layer 180 can be arranged throughout the entirety of the fore-and-aft direction f of rear fender 113, but in order to suppress the intensity caused by low conductive layer 180 to decline, be preferably arranged at a side side (being fixation clip 11 side of rear fender 113 in the example shown in Fig. 9 and Figure 10) residual thinner wall section 113A.In addition, low conductive layer 180 can be configured to remain same thinner wall section in adsorption plate 122 side of rear fender 113, also can be configured to all residual thinner wall section on the adsorption plate 122 side both sides of fixation clip 11 side of rear fender 113 and rear fender 113.Further, thinner wall section 113A can be utilized to make water cooling tube (not shown) through in rear fender 113.
Similarly, low conductive layer 180 can extend (with reference to figure 12(B) throughout the entirety of the left and right directions h of rear fender 113), but also can remain both ends and extend.Such as, as shown in Figure 12 (B), because the path of eddy current is in magnetic core 146, therefore can extend between the two ends of magnetic core 146 on left and right directions h (that is, can be that low conductive layer 180 does not form the structure extended in the scope of groove 145 in rear fender 113 when observing from the paper vertical direction of Figure 12 (B)).
Further, as arbitrary structures, strengthening part 190 can be set on rear fender 113.This strengthening part 190 plays the function of the intensity decline making up the rear fender 113 caused by the insertion of low conductive layer 180.Thereby, it is possible to improve response by low conductive layer 180, and be maintained as the intensity needed for rear fender 113.Strengthening part 190 is typically made up of sheet materials such as the metallic plates be electrically insulated with rear fender 113.But, as long as strengthening part 190 can guarantee its intensity, then also formed by (reinforced plastics) such as plastics.In addition, strengthening part 190 can be incorporated on rear fender 113 by bolt or welding etc., also can form with rear fender 113 by inserting.Further, strengthening part 190 can also possess cooling body.Cooling body such as can be formed with the coldplate of cooling-water duct for the pipe of flow of cooling water or inside.When for the latter, strengthening part 190 can be made up of coldplate itself.
And, in example shown in Figure 10, strengthening part 190 is arranged along the bearing of trend (the left and right directions h of rear fender 113) of low conductive layer 180 with the form overlapping with low conductive layer 180, but also can arrange with the form of intersecting with the bearing of trend of low conductive layer 180.
Figure 13 is the stereogram of the single-piece state of the rear fender 113 ' represented based on embodiment 4.Figure 14 is the sectional view of the B-B line along Figure 13.Similarly, in Figure 13 and Figure 14, arrow h and arrow V represents the left and right directions (horizontal direction) of rear fender 113 ' and above-below direction (vertical direction) respectively, and arrow f represents the fore-and-aft direction of rear fender 113 '.
In the present embodiment 4 also in the same manner as above-described embodiment 3, rear fender 113 ' comprises the low conductive layer 180 that is made up of lower than the material of predetermined value electrical conductivity and forms.Low conductive layer 180 is preferably made up of megohmite insulant (such as, glass substance or resin etc.), and after casting pressing plate 113 ' time formed simultaneously.That is, formed by casting under the state that rear fender 113 ' is inserted with low conductive layer 180 in inside.Low conductive layer 180 extends in the cross section of rear fender 113 ' with slit-shaped.In the present embodiment, low conductive layer 180 is arranged with the form extended at magnetic field parallel surface.That is, low conductive layer 180 configures with the form of cross-section magnetic core 146 on the above-below direction V of rear fender 113 '.
Magnetic field parallel surface is the parallel surface in the magnetic field (magnetic line of force P with reference to schematically illustrating in Figure 11) being formed at rear fender 113 ' and adsorption plate 122 when electromagnet 49 drives.Thus, magnetic field parallel surface is equivalent to the face with the cross-section parallel shown in Figure 11.
According to the configuration of this low conductive layer 180 also in the same manner as above-described embodiment 3, the path (with reference to figure 12(A) of the eddy current around the hole 141 of center-pole) by low conductive layer 180(and magnetic field parallel surface) cut off.So, response when electromagnet 49 drives can be improved by the stream suitably changing eddy current.Further, because low conductive layer 180 extends on the parallel surface of magnetic field, therefore magnetic gap can not be produced, and the impact that output when low conductive layer 180 can be driven for electromagnet 49 produces suppresses in Min..
And, similarly, low conductive layer 180 can be arranged throughout the entirety of the fore-and-aft direction f of rear fender 113 ', but in order to suppress the intensity caused by low conductive layer 180 to decline, be preferably arranged at a side side (being fixation clip 11 side of rear fender 113 ' in the example shown in Figure 13 and Figure 14) residual thinner wall section 113A '.In addition, low conductive layer 180 can be configured to remain same thinner wall section in adsorption plate 122 side of rear fender 113 ', also can be configured to all residual thinner wall section on the adsorption plate 122 side both sides of fixation clip 11 side of rear fender 113 ' and rear fender 113 '.Further, thinner wall section 113A ' can be utilized to make water cooling tube (not shown) through in rear fender 113 '.
Further, can extend throughout the entirety of the above-below direction V of rear fender 113 ', but also can remain both ends and extend.Such as, as shown in Figure 12 (B), because the path of eddy current is in magnetic core 146, therefore can extend between the two ends of magnetic core 146 on above-below direction V (that is, can be that when observing from the paper vertical direction same with Figure 12 (B), low conductive layer 180 does not form the structure extended in the scope of groove 145 rear fender 113 '.）
Further, as arbitrary structures, can strengthening part 190 be set on rear fender 113 '.This strengthening part 190 plays the function of the intensity decline making up the rear fender 113 ' caused by the insertion of low conductive layer 180.Thereby, it is possible to improve response by low conductive layer 180, and be maintained as the intensity needed for rear fender 113 '.Strengthening part 190 is typically made up of sheet materials such as the metallic plates be electrically insulated with rear fender 113 '.But, as long as strengthening part 190 can guarantee its intensity, then also formed by (reinforced plastics) such as plastics.In addition, strengthening part 190 can be incorporated on rear fender 113 ' by bolt or welding etc., also can form with rear fender 113 ' by inserting.Further, strengthening part 190 can also possess cooling body.Cooling body such as can be formed with the coldplate of cooling-water duct for the pipe of flow of cooling water or inside.When for the latter, strengthening part 190 can be made up of coldplate itself.
And, in example shown in Figure 14, strengthening part 190 is upper in the direction (the left and right directions h of rear fender 113 ') that the bearing of trend (the above-below direction V of rear fender 113 ') with low conductive layer 180 intersects to be arranged, but also can arrange along the bearing of trend of low conductive layer 180 (the above-below direction V of rear fender 113 ') with the form overlapping with low conductive layer 180.Further, strengthening part 190 can be arranged in parallel multiple.
In addition, in the present embodiment 4, rear fender 113 ' is configured with 2 low conductive layers 180, but the quantity of low conductive layer 180 can be any.That is, rear fender 113 ' can configure the low conductive layer 180 of any amount abreast with magnetic field parallel surface.
In addition, based on the present embodiment 4 structure can also with the above-mentioned textural association based on embodiment 3.That is, rear fender 113 ' can possess the low conductive layer 180 added extended on the plane of symmetry X1 of magnetic field.
In addition, in above-described embodiment, " the 1st fixed part " the corresponding fixation clip 11 in technical scheme, " the 1st movable member " the corresponding movable pressure plate 12 in technical scheme.Further, " the 2nd fixed part " the corresponding rear fender 113 in technical scheme and rear fender 113 ', " the 2nd movable member " corresponding adsorption plate 122 in technical scheme.
The present invention is not limited to above-described embodiment, without departing from the scope of the present invention, can apply various distortion and replacement to above-described embodiment.
Such as, as above-mentioned, electromagnet 49 can be set in adsorption plate 122 side, adsorption section is set at rear fender 113 and rear fender 113 ' side.So when adsorption plate 122 side arranges electromagnet 49, the structure comprising same low conductive layer 180 is realized to the adsorption plate 122 formed by casting.
In addition, when rear fender 113 and rear fender 113 ' side form electromagnet 49, also can realize to adsorption plate 122 structure comprising same low conductive layer 180 by casting formation adsorption plate 122.Thus, change the stream of eddy current similarly in adsorption plate 122 side, therefore, it is possible to contribute to improving response when electromagnet 49 drives.Now, adsorption plate 122 is preferably possessing low conductive layer with the position corresponding with the position of 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 up of megohmite insulant, and megohmite insulant can be air.That is, low conductive layer 180 can be made up of air layer.
Further, in above-described embodiment, water is used as the fluid of cooling, but also can use the fluid (such as, oil or gas etc.) beyond water.
Further, in above-described embodiment, rear fender 113 is formed with the electromagnet 49 of a pole, but also on rear fender 113 electromagnet (namely also can realize multipolarization) can be set in the mode forming multiple pole.
In addition, in above-mentioned, exemplified with the mold closing mechanism 10 of ad hoc structure, as long as but mold closing mechanism 10 utilizes electromagnet to carry out matched moulds, then can be arbitrary structures.

Claims (13)

1. an injection (mo(u)lding) machine, is characterized in that, possesses:
1st fixed part, it is provided with cover half;
2nd fixed part, it arranges as opposed with described 1st fixed part;
1st movable member, it is provided with dynamic model; And
2nd movable member, itself and described 1st movable member link and together move with described 1st movable member,
Described 2nd fixed part and described 2nd movable member form the mold clamping force producing mold clamping force by the absorption affinity of electromagnet and produce mechanism,
At least any one party parts in described 2nd fixed part and the 2nd movable member are formed in conjunction with the dividing body of 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 combines in mode spaced apart from each other each other.
4. injection (mo(u)lding) machine as claimed in claim 1 or 2, wherein,
Combine at the plane of symmetry in magnetic field or parallel surface that are configured with the parts forming described magnet spool between described dividing body.
5. injection (mo(u)lding) machine as claimed in claim 1 or 2, wherein,
This injection (mo(u)lding) machine possesses the strengthening part of the joint portion strengthened between described dividing body.
6. injection (mo(u)lding) machine as claimed in claim 5, wherein,
Described strengthening part arranges cooling body.
7. injection (mo(u)lding) machine as claimed in claim 1 or 2, wherein,
Described 2nd fixed part and described 2nd movable member are all formed in conjunction with the dividing body of more than 2, and the faying face forming the dividing body of described 2nd fixed part is identical with the faying face of the dividing body forming described 2nd movable member.
8. an injection (mo(u)lding) machine, is characterized in that, possesses:
1st fixed part, it is provided with cover half;
2nd fixed part, it arranges as opposed with described 1st fixed part;
1st movable member, it is provided with dynamic model; And
2nd movable member, itself and described 1st movable member link and together move with described 1st movable member,
Described 2nd fixed part and described 2nd movable member form the mold clamping force producing mold clamping force by the absorption affinity of electromagnet and produce mechanism,
At least any one party parts in described 2nd fixed part and described 2nd movable member are made up of foundry goods, and this foundry goods comprises the low conductive layer that is made up of megohmite insulant and forms.
9. injection (mo(u)lding) machine as claimed in claim 8, wherein,
Be configured with the plane of symmetry in magnetic field or the described low conductive layer of parallel surface configuration of the parts forming described magnet spool.
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 being configured with the parts forming described magnet spool.
11. injection (mo(u)lding) machines as claimed in claim 10, wherein,
Cooling body is set being configured with the position that there is not described low conductive layer in the parts forming described magnet spool.
12. injection (mo(u)lding) machines as claimed in claim 8 or 9, wherein,
This injection (mo(u)lding) machine possesses the strengthening part strengthening described foundry goods.
13. injection (mo(u)lding) machines as claimed in claim 12, wherein,
Described strengthening part arranges cooling body.
CN201210356856.3A 2011-09-22 2012-09-21 Injection (mo(u)lding) machine Expired - Fee Related CN103009586B (en)

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JP2011208155A JP5694107B2 (en) 2011-09-22 2011-09-22 Injection molding machine
JP2011-208154 2011-09-22
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