CN107081873A - The loose piece of lens molding die and the lens mold for forming with the loose piece - Google Patents
The loose piece of lens molding die and the lens mold for forming with the loose piece Download PDFInfo
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- CN107081873A CN107081873A CN201710070961.3A CN201710070961A CN107081873A CN 107081873 A CN107081873 A CN 107081873A CN 201710070961 A CN201710070961 A CN 201710070961A CN 107081873 A CN107081873 A CN 107081873A
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- loose piece
- lens
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- recess
- face
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- 238000000465 moulding Methods 0.000 title claims abstract description 21
- 125000006850 spacer group Chemical group 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 abstract description 7
- 239000004033 plastic Substances 0.000 abstract description 7
- 238000001746 injection moulding Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
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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
- B29C45/26—Moulds
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/76—Cores
-
- 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
- B29C45/26—Moulds
- B29C45/36—Moulds having means for locating or centering cores
-
- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/80—Measuring, controlling or regulating of relative position of mould parts
-
- 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
- B29C45/26—Moulds
- B29C45/36—Moulds having means for locating or centering cores
- B29C2045/363—Moulds having means for locating or centering cores using a movable core or core part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Abstract
A kind of loose piece of lens molding die and the lens mold for forming with the loose piece, can be that the thickness simplicity and precision of plastic lens are adjusted well to formed body.Loose piece by following lens molding die and the lens mold for forming with the loose piece solve technical problem, and the loose piece of said lens mould has：The first loose piece of the recess of through hole is provided with bottom surface, and second loose piece chimeric with the above-mentioned recess of above-mentioned first loose piece, it is regarding the end face of the above-mentioned bottom surface side positioned at above-mentioned recess of above-mentioned second loose piece as front end face, and during using the end face of above-mentioned second loose piece and above-mentioned front end face opposite side as rear end face, the above-mentioned front end face of above-mentioned second loose piece has：The protuberance chimeric with the above-mentioned through hole of above-mentioned recess is lens forming part, and the plane opposite with the bottom surface of above-mentioned recess is planar portions, and First elastic component is configured between the above-mentioned planar portions of the above-mentioned bottom surface of above-mentioned recess and above-mentioned second loose piece.
Description
Technical field
The present invention relates to the loose piece of lens molding die and the lens mold for forming with the loose piece.
Background technology
Following Patent Document 1 discloses a kind of mould, the mould makes the spacer member of elastically deformable using screw
Compression, thus, it is possible to be that the thickness of lens is adjusted to formed body.
Patent document 1：Japanese Patent Laid-Open 2007-125809 publications
In order to improve the formed precision of injection forming mold, it is necessary to which the tolerance for each part for constituting mould is suppressed to use up can
Can be small., it is necessary to which loose piece is fixed particularly in the mould of loose piece mode, to prevent the gap because being arranged at loose piece resettlement section
The position of loose piece is caused to produce error.Moreover, along with camera system lens unit in recent years, (vehicle-mounted camera or monitoring are imaged
It is first-class) high resolution, in the mould being molded to plastic lens used in above-mentioned camera system lens unit,
Seek the mould and die accuracy of μm unit.Only above-mentioned mould and die accuracy is difficult to realize by simply suppressing the tolerance of each part.Therefore, plastics
The mould of lens shaping is it is preferable that with can be to the drawer at movable side of zoning lens forming part and the forward surface of affixed side
The mechanism that relative position is finely adjusted.
Moreover, in order to realize the optical characteristics required by above-mentioned plastic lens, preferably with can not only remove
The bias of mirror, moreover it is possible to remove the mechanism of the thickness error of lens.
The content of the invention
In view of the above problems, the technical problem to be solved in the present invention is to provide it is a kind of can be to formed body plastic lens thickness
The loose piece for the lens molding die that degree simplicity and precision are adjusted well and the lens mold for forming with the loose piece.
In order to solve the above-mentioned technical problem, the loose piece of lens molding die of the invention has：First loose piece, this first
Loose piece has recess, and the bottom surface of above-mentioned recess is provided with through hole；And second loose piece, second loose piece and above-mentioned first loose piece
Above-mentioned recess be fitted together to, using the end face of the above-mentioned bottom surface side positioned at above-mentioned recess of above-mentioned second loose piece as front end face,
And during using the end face of above-mentioned second loose piece and above-mentioned front end face opposite side as rear end face, above-mentioned second loose piece it is above-mentioned before
End face has：Lens forming part, the lens forming part is the protuberance chimeric with the above-mentioned through hole of above-mentioned recess；And plane
Portion, the planar portions are the planes opposite with the bottom surface of above-mentioned recess, and the above-mentioned bottom surface of above-mentioned recess is upper with above-mentioned second loose piece
State and be configured with First elastic component between planar portions.
By configuring First elastic component between the recess bottom surface of the first loose piece and the planar portions of the second loose piece, second lives
Block is pressed to the opening side of recess all the time by the repulsion of First elastic component.The lens molding die of the present invention
Loose piece has above-mentioned First elastic component, thus, can be easily in recess depths side when the thickness to lens is finely adjusted
Changed the position of the second upward loose piece.In addition, the adhesion of the bottom surface of recess and the planar portions of the second loose piece can be prevented, from
And the life-span of loose piece can be extended.
Furthermore it is preferred that above-mentioned second loose piece of ratio in above-mentioned recess chimeric has close to the position of the opening side of above-mentioned recess
Spacer member, the spacer member is abutted with the above-mentioned rear end face of above-mentioned second loose piece.
In the case of the non-configuration space component in rear end face side of the second loose piece, it is finely adjusted in the thickness to lens
When, it is necessary to be changed to the second loose piece length of itself on recess depths direction.The lens molding die of this structure is used
Loose piece be configured with spacer member in the rear end face side of the second loose piece, thus, without changing the second loose piece length of itself, and
By suitably changing the thickness of spacer member, the thickness of lens can be just finely adjusted.
Furthermore it is preferred that above-mentioned First elastic component is O-ring.
The O-ring of all size typically commercially has circulation, can easily obtain the O shapes of optimal shape and property
Ring.
Furthermore it is preferred that above-mentioned second loose piece has the main part of cylinder, aforementioned body portion outer surface along above-mentioned
The circumference of outer surface is formed with groove portion, and second elastic component i.e. O-ring is provided with above-mentioned groove portion.
It is O-ring by installing second elastic component in the main part of the second loose piece, in the assembly and disassembly of the second loose piece, can prevents
Only the contact surface of the main part of the recess of the first loose piece and the second loose piece produces adhesion.Furthermore, it is necessary to be provided for making in recess
The chimeric gap of second loose piece, miss corresponding with above-mentioned gap may be produced in the position for the second loose piece being embedded in recess
Difference.The loose piece of the lens molding die of this structure is O-ring by installing second elastic component in the main part of the second loose piece,
Can the above-mentioned error of reduction.
Furthermore it is preferred that the opening edge portion in above-mentioned groove portion is provided with fillet.
In the case where the opening edge portion of groove portion is made up of sharp keen angle, make the recess of the second loose piece and the first loose piece
When chimeric, second elastic component may produce distortion or bite.Fillet is set by the opening edge portion in groove portion, can be suppressed
Such unfavorable condition.
Furthermore it is preferred that the inner peripheral surface near the above-mentioned bottom surface of above-mentioned recess is provided with airport, the airport is from above-mentioned
Inner peripheral surface insertion is to the outside of above-mentioned first loose piece, and above-mentioned First elastic component has a notch part in circumferential part, and above-mentioned the
One elastomeric member configuration is on the direction that above-mentioned notch part is connected with above-mentioned airport.
The notch part of First elastic component is connected with the airport of the first loose piece, thus, is lived making the second loose piece and first
When the recess of block is chimeric, the air in recess can escape from airport, so as to make the second loose piece be easier to be fitted together to.
In order to solve the above-mentioned technical problem, lens mold for forming of the invention has moving bolster plate and fixed side form
Plate, the moving bolster plate and fixed bolster plate have the loose piece of said lens mould.
By in the loose piece being molded to the two sides of lens using the present invention lens molding die loose piece, more
The thickness and precision of lens can be improved.
Invention effect
, can be to shaping according to the loose piece of the lens molding die of the present invention and the lens mold for forming with the loose piece
Body is that the thickness simplicity and precision of plastic lens are adjusted well.
Brief description of the drawings
Fig. 1 is the integrally-built schematic diagram for the injection moulding machine for showing the lens mold for forming with embodiment.
Fig. 2 is the plan for the die joint for showing fixed bolster plate.
Fig. 3 is the plan for the die joint for showing moving bolster plate.
Fig. 4 is the enlarged drawing of the affixed side loose piece of Fig. 2 chain-dotted line A encirclements.
Fig. 5 is Fig. 4 A-A sectional views.
Fig. 6 be show close lens mold for forming when affixed side loose piece and drawer at movable side loose piece engagement state side view
Sectional view.
(symbol description)
100 fix side core
110 first loose pieces
111 recesses
111a is open
111b inner peripheral surfaces
111c bottom surfaces
112 through holes
113 airports
120 second loose pieces
120a front end faces
121 lens forming parts
121a lens forming surfaces
122 planar portions
120b rear end faces
120c main parts
123 groove portions
123a opening edge portions
124 screwed holes
130 O-rings
130a notch parts
140 O-rings
151st, 152 ring-like spacer part
200 movable side cores
210 first loose pieces
220 second loose pieces
900 injection moulding machines
910 lens mold for forming
913 fixed bolster plates
915 moving bolster plates
916 lens forming room
PL parting lines
Embodiment
<Mould structure summary>
Hereinafter, using loose piece and lens forming mould with the loose piece of the accompanying drawing to the lens molding die of the present invention
The embodiment of tool is described in detail.The lens mold for forming 910 of present embodiment is to camera system lens unit institute
The example for the multiple-cavity mold that the plastic lens used is molded.
Fig. 1 be show the lens mold for forming 910 with present embodiment injection moulding machine 900 it is integrally-built
Schematic diagram.Lens mold for forming 910 be installed on by its cavity adaptor plate 912 injection moulding machine 900 fixed disk 921,
Core adaptor plate 914 is installed on movable plate 922 and is installed on injection moulding machine 900.Injection moulding machine 900 makes template i.e. movable
Side template 915 and template are that fixed bolster plate 913 is opened and closed at parting line PL, so as to carry out the shaping and taking-up of formed body.Note
As long as molding machine 900 can perform the forming machine of general injection molding action, its species is not required.
Fig. 2 is the plan for the die joint 913a for showing fixed bolster plate 913.On die joint 913a, with die joint
913a center is circumferential as center to be equally spaced formed with 12 fixed side core resettlement sections 410, each fixed side core
Resettlement section 410 is fitted together to the fixation side core 100 (loose piece) for having substantially four prism type.In addition, for convenience of description, saving in fig. 2
Omit and constituted various pins or pin-and-hole used in the mutual positioning of each component, connection or guiding of lens mold for forming 910 etc.
Record.
In each fixed side core resettlement section 410, wedge-shaped distance piece described later is contained together with fixed side core 100
310th, 320, allocation position of each fixed side core 100 in fixed side core resettlement section 410 passes through wedge-shaped distance piece 310,320
It is fixed.The lens forming part 121 of lens forming surface 121a with convex is from the die joint 100e of each fixed side core 100
Centre is stretched out.
Fixed side runner halfbody 510 is formed with the die joint 913a of fixed bolster plate 913, the fixation side runner halfbody
510 be the six roots of sensation groove portion extended radially from the running channel 550 for being arranged at die joint 913a centers towards in-plane.It is each above-mentioned
Diverge fork in pairs again after fixed side runner halfbody 510, and extends to the die joint 100e of each fixed side core 100.
Fig. 3 is the plan for the die joint 915a for showing moving bolster plate 915.With the die joint of fixed bolster plate 913
913a is same, on die joint 915a, circumferential using die joint 915a center as center to be equally spaced formed with 12
Movable side core resettlement section 420, the chimeric movable side core 200 for having substantially four prism type in each movable side core resettlement section 420 is (living
Block).In addition, it is same with Fig. 2, the mutual positioning of each component for constituting lens mold for forming 910, company are also omit in figure 3
The record of various pins or pin-and-hole used in connecing or guide etc..
In each movable side core resettlement section 420, wedge-shaped distance piece 310,320 is contained together with movable side core 200,
Allocation position of each movable side core 200 in movable side core resettlement section 420 is fixed by wedge-shaped distance piece 310,320.Tool
The lens forming part 221 for having concave lens forming surface 221a is exposed in the die joint 200e of each movable side core 200 center.
Movable side runner halfbody 520 is formed with the die joint 915a of moving bolster plate 915, the movable side runner halfbody
520 be the six roots of sensation groove portion extended radially from die joint 915a center towards in-plane.Each above-mentioned movable side runner half
Diverge fork in pairs again after body 520, and extends to the lens forming surface 221a of each movable side core 200.
Each fixed side core 100 and each movable side core 200 are configured in the position with some in the opposing party toward each other
Put, after lens mold for forming 910 is closed, form lens forming room 916 described later.In addition, similarly, fixed side runner half
Body 510 and movable side runner halfbody 520 are also disposed in position to correspond to each other, by close lens mold for forming 910 and shape
Guided into by molten resin from running channel 550 to the runner of lens forming room 916.
<The fixed structure of loose piece>
Fig. 4 is the enlarged drawing of the fixation side core 100 of Fig. 2 chain-dotted line A encirclements.Fig. 5 is Fig. 4 A-A sectional views.With
Under, the fixed structure of the main pair of fixation side core 100 chimeric with fixed side core resettlement section 410 is illustrated, as follows
Each component feature or fixed structure also and with movable side core resettlement section 420 be fitted together to movable side core 200 it is identical.
(structure of core)
Fixed side core 100 is that the corner in the circumference of its outer peripheral face (side 100a, 100b, 100c, 100d) is fallen
Angle processes and is in the component of substantially four prism type.The fixation side core 100 for being contained in fixed side core resettlement section 410 is configured at it
On outer peripheral face (side 100a, 100b, the 100c, 100d) direction opposite with the inner peripheral surface of fixed side core resettlement section 410.It is fixed
The die joint 100e of side core 100 face position is flushed with the die joint 913a of fixed bolster plate 913.
In the side 100a sides for being contained in the fixation side core 100 of fixed side core resettlement section 410, with side 100a
The position of contact is configured with wedge-shaped distance piece 310, and in side 100b sides, wedge shape is being configured with the side 100b positions contacted
Distance piece 320.
Core side is formed with the side 100a of fixed side core 100 abutting part abutted with wedge-shaped distance piece 310 to support
Junction 101, the core side bearing surface 101 is from the opening 410f sides of fixed side core resettlement section 410 towards bottom surface 410e mono-
Side extend out to the inclined plane of the wedge-shaped side of distance piece 310.Make by the direction orthogonal with side 100a short transverse (Z-direction)
For side 100a width when, present embodiment core side bearing surface 101 formation side 100a widths total length
1/3 or so width.In addition, core side bearing surface 101 is formed in the way of depression, so that side 100a face is cut open.
Similarly, it is also formed with the side 100b of fixed side core 100 abutting part abutted with wedge-shaped distance piece 320
Core side bearing surface 102, the core side bearing surface 102 is from the opening 410f sides of fixed side core resettlement section 410 bottom of towards
Face 410e sides extend out to the inclined plane of the wedge-shaped side of distance piece 320.By the direction orthogonal with side 100b short transverse
As side 100b width when, core side bearing surface 102 also forms 1/3 or so of the total length of side 100b widths
Width, and core side bearing surface 102 also formed in the way of depression, so that side 100b face is cut open.
In addition, in the outer peripheral face (side 100a, 100b, 100c, 100d) of fixed side core 100, in-plane with
The side 100a pressed by wedge-shaped distance piece 310 has the side of parallel relation, that is to say, that in side, the 100a back side is side
Face 100c is formed with the groove portion 103 of ring-type.O-ring 181 is installed in groove portion 103.O-ring 181 is clipped in side 100c and side
Between 410c, above-mentioned side 410c is the face opposite with side 100c in the inner peripheral surface of fixed side core resettlement section 410.
The center that O-ring 181 is configured to its internal diameter is overlapping with side 100c substantial middle.In addition, wedge-shaped distance piece 310
It is also disposed in the position abutted with the center on side 100a width.This prevents because fixed side core 100 is by wedge
The inclination of the fixed side core 100 caused by pressing of shape distance piece 310.
Similarly, wedge-shaped distance piece 320 is also disposed in the position abutted with the center on side 100b width.
In-plane has the side of parallel relation with the side 100b pressed by wedge-shaped distance piece 320, that is to say, that in side 100b
The back side be groove portion 104 that side 100d is formed with ring-type.O-ring 182 with the center of its radial direction and side 100b substantially in
The overlapping mode in centre is installed on groove portion 104.O-ring 182 is clipped between side 100d and side 410d, above-mentioned side 410d and side
Face 100d is opposite.
The center that O-ring 182 is similarly configured to its internal diameter is overlapping with side 100d substantial middle.In addition, between wedge shape
Spacing body 320 is also disposed in the position abutted with the center on side 100b width.This prevents because of fixed side core
100 are pressed the inclination of caused fixed side core 100 by wedge-shaped distance piece 320.
In addition, fixed side core 100 and fixed side core resettlement section 410 are exposed to corrosive gas when lens are molded
In, therefore, adhesion is easily produced in its contact surface.In the lens mold for forming 910 of present embodiment, by affixed side
Clamped between core 100 and the inner peripheral surface of the fixation side core resettlement section 410 pressed by fixed side core 100 O-ring 181,
182, adhesion of the fixed side core 100 in assembly and disassembly can be suppressed.
(structure of loose piece resettlement section)
Fixed side core resettlement section 410 is formed at the die joint 913a of fixed bolster plate 913 recess.Fixed side core
The inner peripheral surface of resettlement section 410 has side 410a, 410b, 410c, the 410d being made up of plane.Each above-mentioned side 410a, 410b,
Outer peripheral face (side 100a, 100b, the 100c, 100d) formation of 410c, 410d along fixed side core 100 is for fixed side core
The space of 100 chimeric substantially four prism types.
By with the side 410a in each side 410a, 410b, 410c, 410d of fixed side core resettlement section 410 and side
The orthogonal direction of face 410b depth direction (Z-direction) as each above-mentioned side 410a, 410b width when, in each side
Center on 410a, 410b width is formed with spacer arrangement portion 411,412, and the spacer arrangement portion 411,412 is
The space of each side 410a, 410b stepped depression in face position.Each side 410a of the formation of spacer arrangement portion 411,412,
1/3 or so width of the total length on 410b widths, and the spacer arrangement portion 411,412 is from fixed side core resettlement section
410 opening 410f extends along depth direction.Spacer arrangement portion 411,412, which is formed, can configure wedge-shaped distance piece 310,320
Minimal space.
In addition, when side core resettlement section 410 is fixed in the opening 410f unilateral observations from fixed side core resettlement section 410
(that is, when being observed on Fig. 4 direction of visual lines), each side 410a in the inner peripheral surface to fixed side core resettlement section 410,
The corner that 410b, 410c, 410d are attached is formed with extension 410g, and extension 410g expands protrusion laterally with space
Mode extend.Similarly, it is also formed with extension in the end of the stretching direction side in spacer arrangement portion 411,412
410h, extension 410h are expanded prominent mode with space and extended laterally.Above-mentioned extension 410g, 410h wall are with consolidating
Determine to be provided with gap between side core 100 and wedge-shaped distance piece 310,320.
(structure of spacer member)
Wedge-shaped distance piece 310,320 is the rod member along the depth direction extension of fixed side core resettlement section 410.Wedge
Shape distance piece 310 be in the component of substantially four prism type, its outer peripheral face with supporting that the side 100a of fixed side core 100 is abutted
Socket part is that distance piece side bearing surface 311 is made up of the plane of the inclined at inclination angles along core side bearing surface 101.With distance piece
Corner of the face of the opposite side of side bearing surface 311 in the wedge-shaped circumference of distance piece 310 is in by the shape of chamfer machining deeper.
Wedge-shaped distance piece 310 is provided with through hole 313, the depth side of the through hole 313 along spacer arrangement portion 411
To extension, wedge-shaped distance piece 310 is fixed on spacer arrangement portion 411 by inserting in the bolt 315 of through hole 313.
Negative thread 313a is formed with the inner peripheral surface of through hole 313, negative thread 313a has outer than the axle portion of bolt 315
The big internal diameter in footpath.The negative thread 313a collection of the extraction of the fixed bolt hole of wedge-shaped distance piece 310 and wedge-shaped distance piece 310
In Cheng Yi through hole 313, the increase thus, it is possible to suppress number of components.
The materials'use hardness of the fixation side core 100 of present embodiment is 50-54HRC steel, wedge-shaped distance piece 310
Materials'use have the hardness higher than the hardness of fixed side core 100 steel.In order to realize spacer arrangement portion 411
Miniaturization and in the case that wedge-shaped distance piece 310 is formed into required minimal size, easily may be spaced in wedge shape
Part 310 is deformed or strained.In the present embodiment, wedge-shaped distance piece 310 utilizes the hardness with than fixed side core 100
The steel of high hardness are made, thus, it is possible to suppress because assembly and disassembly cause the deformation or strain of wedge-shaped distance piece 310 repeatedly.
The wedge-shaped distance piece 320 for being fixed on spacer arrangement portion 412 using bolt 325 also has and wedge-shaped distance piece 310
Identical shape and structure, the abutting part abutted with side 100b i.e. distance piece side bearing surface 321 is similarly by along core side
The plane of the inclined at inclination angles of bearing surface 102 is constituted.
(location structure of loose piece)
Abutting part (the distance piece side bearing surface of the fixation side core 100 of present embodiment and wedge-shaped distance piece 310,320
311 and core side bearing surface 101 and distance piece side bearing surface 321 and core side bearing surface 102) by being received towards fixed side core
The inclined inclined plane of depth direction in appearance portion 410 is constituted.Moreover, the angle of inclination of above-mentioned inclined plane forms following angle：
When depth direction by wedge-shaped distance piece 310,320 along fixed side core resettlement section 410 is pressed, wedge-shaped distance piece 310,320
Fixed side core 100 is pressed to side 410c, the side 410d and bottom surface 410e of fixed side core resettlement section 410.Thus,
Even if spacer arrangement portion 411,412 is the small space of the size almost identical with the size of wedge-shaped distance piece 310,320,
It can utilize the depth of fixed side core resettlement section 410 that fixed side core 100 is positioned at into the one of fixed side core resettlement section 410
Place.
Further, since the profile of fixed side core 100 is not cylinder but substantially prismatic, therefore wedge-shaped distance piece
310th, 320 the side of fixed side core 100 can be easily caught, so as to which side core 100 will be fixed all the time to fixed direction
Pressing.Further, since being received by side 410a, 410b, 410c, 410d of fixed side core 100 to be pointed to fix side core
The circumferential position of the fixation side core 100 in appearance portion 410 is fixed, therefore can improve the repeatability that fixed side core 100 is positioned.
In addition, in the present embodiment, the outer peripheral face (side of wedge-shaped distance piece 310,320 pairs of fixed side cores 100 is utilized
100a, 100b, 100c, 100d) in orthogonal two face (side 100a and 100b) pressed, thus, it is possible to by affixed side type
Core 100 is positioned at the one of fixed side core resettlement section 410, but also can be according to required by formed body formed precision or allow
Cost and be configured to only press from either one direction.In addition, the fixation side core 100 of present embodiment forms substantially quadrangular
Shape, even if forming other prismatic, by two that spacer member is configured to in-plane and non-parallel relation respectively
Sideways, it can also obtain and present embodiment identical effect.
In the present embodiment, the bolt 315,325 of stationary wedge distance piece 310,320 is fixed to same position all the time.
Therefore, it is not regulating bolt when the intensity by wedge-shaped distance piece 310, the fixed side core 100 of 320 pairs of pressings is adjusted
315th, 325 tightness, but the length (length of Z-direction) of processing wedged distance piece 310,320 itself or replacing growth
Other different wedge-shaped distance pieces 310 of degree.
In addition, being clipped in the O-ring between side 410c, 410d of side 100c, 100d and fixed side core resettlement section 410
181st, 182 by its repulsion will fixed side core 100 all the time to wedge-shaped distance piece 310,320 sides by going back, above-mentioned side
100c, 100d be by wedge-shaped distance piece 310,320 press side 100a, 100b dorsal part face, above-mentioned side 410c, 410d with
Above-mentioned side 100c, 100d are opposite.Therefore, the length of the only appropriate wedge-shaped distance piece 310,320 of change, with regard to affixed side can be pointed to
The position of the fixation side core 100 of core resettlement section 410 is adjusted.Thus, it is possible to high accuracy make to fix side core 100 with can
The relative position alignment of dynamic side core 200, so as to remove the bias of lens.In addition, the lens in present embodiment are molded use
In mould 910, above-mentioned location structure is installed on both fixed side core 100 and movable side core 200, but above-mentioned location structure
Also either one in above-mentioned fixed side core 100 and above-mentioned movable side core 200 can be only installed on.
<The thickness adjustment structure of lens>
Hereinafter, the thickness adjustment structure to the lens of the lens mold for forming 910 of present embodiment is illustrated.Fig. 6
It is that the side view of fixation side core 100 and the engagement state of movable side core 200 when showing to close lens mold for forming 910 is cutd open
View.The fixation side core 100 and movable side core 200 of present embodiment have multiple loose piece structure, the multiple loose piece structure
The second loose piece 120,220 be embedded in respectively in the first loose piece 110,210.
Fixed side core 100 and movable side core 200 are by its lens forming surface 121a, 221a and die joint 913a, 915a
Form lens forming room 916.The lens face of the side of the lens forming surface 121a formation lens of fixed side core 100 is concave surface,
The lens face of the opposite side of the lens forming surface 221a formation lens of movable side core 200 is convex surface.In addition, in the lens of shaping
Outer rim, flange part is formed by die joint 913a, 915a of fixed side core 100 and movable side core 200.It is molded and is used by lens
The thickness for the lens that mould 910 is molded can be adjusted by moving the face position of said lens forming surface 121a, 221a.Separately
Outside, the shape of lens forming surface 121a, 221a is not limited to present embodiment, can suitably be changed according to the shape of the lens face of shaping
(can both form the combination of convex-convex lens, can also form the combination of concavo-concave lens).In addition, also the shape of lens face can not be formed
Be formed as aspherical for sphere.
Hereinafter, the thickness adjustment structure of the lens of the fixed side core 100 of 5 pairs of reference picture is illustrated.Present embodiment
Fixed side core 100 is made up of the combination of the first loose piece 110 and the second loose piece 120, the above-mentioned loose piece of second loose piece 120 and first
110 are fitted together to.First loose piece 110 has the recess 111 being fitted together to for the second loose piece 120.Recess 111 is by opening 111a, inner peripheral surface
The space of the substantial cylindrical of 111b and bottom surface 111c formation.The opening 111a of recess 111 is arranged at fixed side core 100
Bottom surface 100f.In addition, being formed with the through hole 112 of circle in the bottom surface 111c of recess 111 center.
By the bottom positioned at recess 111 in the end face of the second loose piece 120 chimeric with the recess 111 of the first loose piece 110
The end face of face 111c sides is as front end face 120a, and by the end with front end face 120a opposite side of above-mentioned second loose piece 120
When face is as rear end face 120b, the front end face 120a of the second loose piece 120 is made up of lens forming part 121 and planar portions 122, above-mentioned
Lens forming part 121 is the protuberance of the substantial cylindrical chimeric with the through hole 112 of recess 111, above-mentioned planar portions 122 be with
Plane opposite the bottom surface 111c of recess 111.Lens forming surface 121a is formed with the leading section of lens forming part 121, this is saturating
Mirror forming surface 121a is made up of hemispherical convex surface.Lens forming part 121 is stretched out from the central verticals of planar portions 122, saturating
The base end part of mirror forming part 121 is formed with tapering 121b, and tapering 121b outer peripheral face is tapered expanding.In addition, the second loose piece
120 have the main part 120c of substantial cylindrical, in main part 120c outer surface, along the circumferential in its height of the outer surface
Two groove portions 123 are formed with direction (Z-direction) with separating predetermined distance.In addition, being formed with screwed hole in main part 120c
124, the screwed hole 124 is provided with opening in the rear end face 120b of the second loose piece 120.Screwed hole 124 is by the second loose piece 120
Make the hole that the instrument for being provided with pin thread is screwed togather when being extracted from recess 111.
Bottom surface 111c and second loose piece of the fixation side core 100 of present embodiment in the recess 111 of the first loose piece 110
First elastic component i.e. O-ring 130 is configured between 120 planar portions 122.In addition, in each groove portion 123 of the second loose piece 120
It is separately installed with second elastic component i.e. O-ring 140.
In addition, the opening edge portion 123a of each groove portion 123 is provided with fillet.That is, it is provided with opening edge portion 123a and is in
Circular fillet.For example in the case where the opening edge portion 123a of groove portion 123 is made up of sharp keen angle, lived relative to first
When the recess 111 of block 110 assembles and disassembles the second loose piece 120, the distortion of O-ring 140 may be produced or bitten.Present embodiment is consolidated
Side core 100 is determined by being arranged at the opening edge portion 123a of groove portion 123 fillet, can suppress such unfavorable condition.
The position of the second loose piece of ratio 120 in the recess 111 of the first loose piece 110 close to the opening 111a sides of recess 111
Put to be fitted together to and have metal circular ring-like spacer part 151, the ring-like spacer part 151 is the rear end face with the second loose piece 120
The spacer member that 120b is abutted.
Bottom surface 111c and second loose piece of the fixation side core 100 of present embodiment in the recess 111 of the first loose piece 110
Be configured with O-ring 130 between 120 planar portions 122, thus, the second loose piece 120 by O-ring 130 repulsion and all the time by
The opening 111a sides pressing of recess 111.For example, in the case where replacement O-ring 130 configures metal spacer member,
Position (the depth of recess 111 of the lens forming part 121 of the second loose piece 120 is being finely adjusted and changed for the thickness to lens
Spend direction (Z-direction) on the second loose piece 120 position) when, it is necessary to which above-mentioned spacer member is processed or changed every time.And
And, in the fixation side core 100 of present embodiment, because the rear end face 120b sides in the second loose piece 120 are configured with addition
Ring-like spacer part 151, it is therefore desirable to two spacer members are processed or changed every time, so that in lens forming part 121
Many man-hours are needed in position adjustments.The fixation side core 100 of present embodiment has O-ring 130 and ring-like spacer part
151, thus, when the thickness to lens is finely adjusted, as long as it is different suitably to process or be replaced with thickness by ring-like spacer part 151
Distance piece.In addition, O-ring 130 is for preventing the bottom surface 111c of recess 111 and the planar portions 122 of the second loose piece 120
Adhesion, the life-span of extension loose piece also contribute.
In addition, in the case where such as replacement O-ring 130 uses helical spring, in order to ensure the configuration of helical spring
Region by lens forming part 121 with the length of helical spring axial direction, it is necessary to correspondingly set longer.Such structure can be hindered
The miniaturization of fixed side core 100, and the small diameter part of the second loose piece 120 is elongated, and intensity also can tender.Present embodiment
Fixed side core 100 can realize the small of fixed side core 100 by using First elastic component of the O-ring 130 as the present invention
Type, and the intensity of the second loose piece 120 will not be damaged, the thickness regulation of lens can be carried out.
In addition, the second loose piece 120 of present embodiment in its main part 120c by installing two O-rings 140, second
Loose piece 120 assemble and disassemble when, can suppress the main part 120c of the loose piece 120 of recess 111 and second of the first loose piece 110 contact surface glue
.Further, since the gap that needs are provided for making the second loose piece 120 chimeric in recess 111, therefore be embedded in recess 111
The position of the second loose piece 120 may produce error corresponding with above-mentioned gap.Second loose piece 120 of present embodiment passes through
It is installed on its main part 120c two O-rings 140 to fill above-mentioned gap, can prevents that position is offset caused by error.
Inner peripheral surface near the bottom surface 111c of the recess 111 of the first loose piece 110 is provided with airport 113, the airport
113 from above-mentioned inner peripheral surface insertion to the outside of the first loose piece 110.The O-ring 130 of present embodiment is in its circumferential local setting
Jagged portion 130a, O-ring 130 is configured on the direction connected in above-mentioned notch part 130a with airport 113.Thus, is made
When two loose pieces 120 are chimeric with recess 111, the air in recess 111 can escape from airport 113, so as to make the second loose piece 120
Easily it is fitted together to.
Movable side core 200 also uses the multiple loose piece structure of fixed side core 100.As shown in fig. 6, above-mentioned affixed side
Different in structure of core 100 and movable side core 200 are only following 2 points：Second loose piece 220 of movable side core 200
Lens forming part 221, the main part 220c of the second loose piece 220, spacer member are ring-like spacer part 152 and are arranged at the first loose piece
The diameter of the through hole 212 of 210 recess 211 is wider than fixed side core 100, and the movably lens forming surface of side core 200
221a forms curved recess.
The lens mold for forming 910 of present embodiment can suppress mould by the fixed structure with above-mentioned loose piece
Maximization and the increase of number of components, and the positioning precision of loose piece can be improved, moreover, being adjusted by the thickness with said lens
Structure, easily can be finely adjusted to the thickness of lens.
Embodiments of the present invention are described in detail above, but the present invention is not limited to above-mentioned embodiment, can
Various changes are carried out without departing from the scope of the subject in the invention.
Claims (7)
1. a kind of loose piece of lens molding die, it is characterised in that have：
First loose piece, first loose piece has recess, and the bottom surface of the recess is provided with through hole；And
Second loose piece, second loose piece is chimeric with the recess of first loose piece,
Using the end face of the bottom surface side positioned at the recess of second loose piece as front end face, and by described second
Loose piece with the end face of the front end face opposite side as rear end face when,
The front end face of second loose piece has：Lens forming part, the lens forming part described in the recess with passing through
The chimeric protuberance of through hole；And planar portions, the planar portions are the planes opposite with the bottom surface of the recess,
First elastic component is configured between the planar portions of the bottom surface of the recess and second loose piece.
2. the loose piece of lens molding die as claimed in claim 1, it is characterised in that second described in the ratio in the recess
Loose piece is fitted together to close to the position of the opening side of the recess spacer member, and the spacer member is described with second loose piece
Rear end face is abutted.
3. the loose piece of lens molding die as claimed in claim 1, it is characterised in that the First elastic component is O shapes
Ring.
4. the loose piece of lens molding die as claimed in claim 1, it is characterised in that
Second loose piece has the main part of cylinder,
In the outer surface of the main part, the circumference along the outer surface is formed with groove portion,
Second elastic component i.e. O-ring is installed in the groove portion.
5. the loose piece of lens molding die as claimed in claim 4, it is characterised in that in the opening edge portion of the groove portion
It is provided with fillet.
6. the loose piece of lens molding die as claimed in claim 1, it is characterised in that
Inner peripheral surface near the bottom surface of the recess is provided with airport, and the airport is from the inner peripheral surface insertion to institute
The outside of the first loose piece is stated,
The First elastic component has notch part in circumferential part,
The First elastic component configuration is on the direction that the notch part is connected with the airport.
7. a kind of lens mold for forming, it is characterised in that with moving bolster plate and fixed bolster plate, the moving bolster plate
And fixed bolster plate has the loose piece of the lens molding die any one of claim 1 to 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016024911A JP6637780B2 (en) | 2016-02-12 | 2016-02-12 | Nest for lens molding die and lens molding die provided with the same |
| JP2016-024911 | 2016-02-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107081873A true CN107081873A (en) | 2017-08-22 |
| CN107081873B CN107081873B (en) | 2019-04-05 |
Family
ID=59615015
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710070961.3A Expired - Fee Related CN107081873B (en) | 2016-02-12 | 2017-02-09 | The loose piece of lens molding die and lens mold for forming with the loose piece |
| CN201720121067.XU Withdrawn - After Issue CN206644261U (en) | 2016-02-12 | 2017-02-09 | The loose piece of lens molding die and the lens mold for forming with the loose piece |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720121067.XU Withdrawn - After Issue CN206644261U (en) | 2016-02-12 | 2017-02-09 | The loose piece of lens molding die and the lens mold for forming with the loose piece |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6637780B2 (en) |
| CN (2) | CN107081873B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6637780B2 (en) * | 2016-02-12 | 2020-01-29 | 日本電産サンキョー株式会社 | Nest for lens molding die and lens molding die provided with the same |
| WO2020250441A1 (en) * | 2019-06-14 | 2020-12-17 | 三菱電機エンジニアリング株式会社 | Injection moulding die |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09225969A (en) * | 1996-02-22 | 1997-09-02 | Olympus Optical Co Ltd | Injection molding die |
| CN1202132A (en) * | 1995-09-25 | 1998-12-16 | 加利克－莫斯公司 | Molding, Ejecting and dipcoating thermoplastic spectacle lens |
| CN1765609A (en) * | 2004-10-29 | 2006-05-03 | 柯尼卡美能达精密光学株式会社 | Optical component molding apparatus |
| CN101062581A (en) * | 2006-04-28 | 2007-10-31 | 索尼株式会社 | Apparatus and method for forming optical element |
| CN206644261U (en) * | 2016-02-12 | 2017-11-17 | 日本电产三协株式会社 | The loose piece of lens molding die and the lens mold for forming with the loose piece |
-
2016
- 2016-02-12 JP JP2016024911A patent/JP6637780B2/en active Active
-
2017
- 2017-02-09 CN CN201710070961.3A patent/CN107081873B/en not_active Expired - Fee Related
- 2017-02-09 CN CN201720121067.XU patent/CN206644261U/en not_active Withdrawn - After Issue
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1202132A (en) * | 1995-09-25 | 1998-12-16 | 加利克－莫斯公司 | Molding, Ejecting and dipcoating thermoplastic spectacle lens |
| JPH09225969A (en) * | 1996-02-22 | 1997-09-02 | Olympus Optical Co Ltd | Injection molding die |
| CN1765609A (en) * | 2004-10-29 | 2006-05-03 | 柯尼卡美能达精密光学株式会社 | Optical component molding apparatus |
| CN101062581A (en) * | 2006-04-28 | 2007-10-31 | 索尼株式会社 | Apparatus and method for forming optical element |
| CN206644261U (en) * | 2016-02-12 | 2017-11-17 | 日本电产三协株式会社 | The loose piece of lens molding die and the lens mold for forming with the loose piece |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017140798A (en) | 2017-08-17 |
| CN206644261U (en) | 2017-11-17 |
| JP6637780B2 (en) | 2020-01-29 |
| CN107081873B (en) | 2019-04-05 |
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