CN107848171A - Building mortion, formed products and mirror unit - Google Patents
Building mortion, formed products and mirror unit Download PDFInfo
- Publication number
- CN107848171A CN107848171A CN201680042443.4A CN201680042443A CN107848171A CN 107848171 A CN107848171 A CN 107848171A CN 201680042443 A CN201680042443 A CN 201680042443A CN 107848171 A CN107848171 A CN 107848171A
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- Prior art keywords
- die
- building mortion
- sliding die
- mould
- sliding
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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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
There is provided for small-sized and cheap building mortion, formed products and mirror unit that high-precision optical surface is transferred to formed products and formed using sliding die.Main core SDa, retainer SDc and clamping block LB are formed by using super steel, the deformation of each several part in X-direction and Y-direction can be suppressed, prevents sliding die SD movement, it is ensured that the miniaturization of building mortion, and form high-precision formed products.Meanwhile the stent FD configured along the Z direction, But moving die MD, rest pad STB etc. are formed with steel by using construction, the cost degradation of building mortion can be promoted.
Description
Technical field
The present invention relates to building mortion, the formed products and the mirror unit for the formed products shaping for making to possess optical surface,
The building mortion for more particularly to shaping formed products, the formed products are used to form optical component, and the optical component is, for example, to survey
The prism that is used in measuring device etc., it is adapted to mirror unit for being used in the range unit that irradiation laser etc. carrys out detection object etc..
Background technology
As in general optical component, from can carry out with high-precision shape and with low cost the angle of volume production
From the point of view of, it is more using the situation of resin forming product.Such resin forming product usually can be obtained by injection molding.Basic
Injection molding in, moveable die is alternately carried out matched moulds along single mould opening and closing direction opening and closing relative to fixing mould
Action and die sinking action.In contrast, the formed products with undercut shape are normally only nothings using fixing mould and moveable die
Method shaping, so in addition to using fixing mould and moveable die, also use in the slip side orthogonal with mould opening and closing direction
The sliding die moved up, shapes undercut shape.
In patent document 1, disclose make the angle for being arranged at moveable die pin engage with slide core and with the shifting of moveable die
It is dynamic to make the building mortion that slide core moves on its orthogonal direction in linkage.According to the building mortion described in patent document 1, in order to
Make to use slide core from the engaging portion shaping of the flange part protrusion of deep drawn shape.Above-mentioned engaging portion is without especially high-precision, separately
There is smaller projected area, as long as so the holding section of the protrusion of moveable die presses down in matched moulds in external glide direction
It is sufficient that outboard end of slide core processed.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2008-126446 publications
The content of the invention
Want to make on the direction of intersection the optical component with high-precision optical surface, such as oppositely however, having
Upper and lower surface and side require for the injection moldings such as the special prism of optical surface are such.Such special prism etc. does not have
Undercut shape, so being additionally considered that can shape merely with fixing mould and moveable die.If however, merely with fixing mould
And moveable die, even if then can ensure that the precision of opposite (upper and lower surface) optical surface on mould opening and closing direction, many feelings
Also it is difficult to make opposite (side) optical surface on the direction intersected with mould opening and closing direction under condition with high-precision shaping.Cause
And consideration makes the shapings such as such special prism with the slide core of patent document 1.In this case, the side of special prism
Optical surface has bigger area, so needing reliably to keep slide core in matched moulds.Illustrate its reason below.
In order to suppress contraction of optical surface etc. in the shaping of optical component, it is applied with to fixing mould and moveable die
Make ester moulding in the state of tens tons to hundreds of tons of pressure.Thus, when in order that the shaping of special prism and by optical surface
When transfer surface is arranged at slide core, the excessive pressure being subject to slide core accordingly results in the minute movement of slide core, deformation etc., can not
Carry out the high-precision shaping of optical surface or the gap increase of mould mating surface, it is possible to long overlap etc. can be produced.Relative to
This, if supporting slide core using that can bear oil gear of big load etc., can move slide core, and can close
It is securely fixed during mould, but thus exists and asked as the maximization for causing building mortion and the cost increase of optical component
Topic.The problem can also produce in the case of the formed products shaping for making to have undercut shape.
The present invention is to complete in view of the foregoing, and its object is to provide one kind to turn high-precision optical surface
Small-sized and cheap building mortion, formed products and the mirror unit for printing to formed products and being formed using sliding die.
At least one purpose in achieve these goals, the building mortion for reflecting one aspect of the present invention are to make
Possesses the building mortion of the formed products shaping of optical surface, the building mortion has：
Fixing mould；
Moveable die, it can be opened and closed on direction in mould and be moved relative to the fixing mould；
Driving part, it is linked to the moveable die and integratedly moves；And
Sliding die, when the moveable die moves up in the mould opening and closing side, by the driving part with it is described
Driven in the glide direction that mould opening and closing direction intersects,
The sliding die has the sliding die transfer surface that transfer forms the optical surface,
When making the moveable die be moved along mould opening and closing direction to the die-closed position for the fixing mould,
It is higher than the rigidity of the 2nd part along mould opening and closing direction configuration along the rigidity of the 1st part of glide direction configuration.
In accordance with the invention it is possible to provide that high-precision optical surface is transferred to formed products and formed using sliding die
Small-sized and cheap building mortion, formed products and mirror unit.
Brief description of the drawings
Fig. 1 is the profile of the building mortion for making formed products shaping of the 1st embodiment.
Fig. 2 is the stereogram of the formed products of the special prism shaped as the building mortion using Fig. 1.
The profile for the building mortion that Fig. 3 is as a reference example and shown.
Fig. 4 is the state for showing the laser radar for having used the mirror unit of the 2nd embodiment being equipped on vehicle
Skeleton diagram.
Fig. 5 is the summary construction diagram for the laser radar LR for having used mirror unit.
Fig. 6 is the profile of the mirror unit MU in laser radar LR.
Fig. 7 be show with mirror unit MU rotation correspondingly with injection laser spots light SB come scanning laser radar LR
Detection range RG in state figure.
Fig. 8 is so that the section of the building mortion for the present embodiment that the formed products for forming mirror unit shape
Figure.
Fig. 9 is the profile for the major part for showing building mortion.
Figure 10 is the stereogram that sliding die periphery is amplified and shown.
Figure 11 is the profile of the mould of the prior art suitable with Fig. 2 of patent document 1.
Description of reference numerals
1a：Front window；1b：Front grille；AP：Sell at angle；AX：Axis；BS：Pedestal；BSa：Opening；CC：Recess；CH：It is circular
Opening；CL：Collimation lens；FD：Stent；FDa：Inner circumferential transfer surface；FDb：Flange transfer surface；FDc：Cylindric transfer section；
FDd：Guide surface；FL：Flange part；FR：Framework；RG：Detection range；LB：Clamping block；LBa：Through hole；LBb：The conical surface；LD：Half
Conductor laser；Ln1~Ln4：Region；LPS：Light projection system；LR：Laser radar；LS：Lens；M1：1st mirror surface；M2：
2nd mirror surface；MD：But moving die；MDa：Inner circumferential transfer surface；MDb：Flange transfer surface；MDc：Needle-like gate portion；MT：Motor；
MP：Formed products；MU：Mirror unit；MUa：1st joint face；MUb：2nd joint face；MUc：1st outer peripheral face；MUd：2nd periphery
Face；MUe：Joint face；OBJ：Object；PD：Photodiode；PJ：Convex shaped part；PT：Plate portion；PT1：1st maintaining part；PT2：The
2 maintaining parts；PTL：Parting line；RO：Rotation axis；RPS：Receiving system；STB：Rest pad；SD：Sliding die；SDa：Main core；
SDb：Secondary core；SDc：Retainer；SDd：Cylinder hole；SDe：1st plane；SDf：2nd plane；SDg：Median surface；SDh：1st connection
Face transfer surface；SDi：2nd joint face transfer surface；SDj：1st outer peripheral face；SDk：2nd outer peripheral face；SDu：The conical surface；SDv：Guide portion；
SH：Rotary shaft；SL：Inject oral area；SP：Support；SS：Sensor.
Embodiment
(the 1st embodiment)
Hereinafter, referring to the drawings, embodiments of the present invention are illustrated.Fig. 1 is to make as can be in microscope, measuring appliance etc.
The profile of the building mortion of the formed products shaping of the special prism used, section when left-half is die sinking, right half part
Section when being matched moulds.Fig. 2 is the stereogram of the formed products of the special prism shaped as the building mortion using Fig. 1.
As shown in Fig. 2 the formed products MP of resin-made is the clava that short side direction section is trapezoidal shape, has and be used as 4
Optical surface OP1~OP4 of individual flat mirror.The special prism formed by such formed products MP is for example except can be Japanese special
Open in the microscope disclosed in 2000-98237 publications outside use, additionally it is possible to used in measuring appliance etc..
Next, explanation makes the building mortion that formed products MP shapes.In Fig. 1, on platform (not shown) is fixed on
Maintaining part HLD is fixed with pedestal BS.Maintaining part HLD fixations in the recess of its upper face center maintain stent FD.Separately
Outside, being configured with But moving die in a manner of FD is opposite along above-below direction and stent (also known as fixing mould) (also known as can
Moving mold) MD.Stent FD upper surface and But moving die MD lower surface are transfer surface.But moving die MD remains secured to supporting
The recess in block STB lower surface center, both are configured to using driving source (not shown) in the vertical direction integratedly
It is mobile.And then two sliding die SD are configured to move in the horizontal direction relative to stent FD.Here, in Fig. 1
In, above-below direction (mould opening and closing direction) is set to Z-direction, horizontal direction (glide direction) is set to X-direction.
Two sliding die SD have main core (being herein core) SDa and keep main core SDa retainer SDc.Main core SDa
With by with towards stent FD sides and close to But moving die MD axis AX in a manner of inclined plane (sliding die transfer surface)
SDf。
Retainer SDc have the inclined cylinder hole SDd in a manner of it can accommodate aftermentioned angle pin AP and with aftermentioned locking
Block LB conical surface LBb accordingly inclined conical surface SDu.In addition, although it is not shown, but the clamping block so that close can also be set
LB and retainer SDc turns into the guide portion that the mode of defined relation guides.Retainer SDc is directed into pedestal BS upper table
Face, it can be moved in the X direction together with main core SDa.
Clip But moving die MD and two recess S TBa are formed in rest pad STB both sides so that be chimeric with recess S TBa
Fixedly locked piece of ground LB.Clamping block LB can also be a rest pad STB part.Clamping block LB has with towards stent
FD sides and the inclined blind hole LBc of mode of axis AX away from But moving die MD and with towards stent FD sides and it is remote
The But moving die MD axis AX inclined conical surface LBb of mode.So that cylindric angle pin AP upper end is inserted into blind hole LBc simultaneously
Make angle pin AP lower end side from clamping block LB expose to be fixed.Expose angle pin AP with towards stent FD sides and it is remote
The mode of axis AX from But moving die MD is respectively with identical angle tilt.
In the present embodiment, as the 1st part configured in the X direction as starting point using sliding die SD during matched moulds,
Sliding die SD main core SDa, retainer SDc and clamping block is formed by super steel (such as Young's modulus is more than 400GPa)
LB.On the other hand, as the 2nd part configured in z-direction as starting point using sliding die SD during matched moulds, by construction steel
(such as Young's modulus is below 250GPa) forms stent FD, But moving die MD.But it is also possible to form main core with steel by constructing
At least one in SDa, retainer SDc and clamping block LB.In addition, AP is sold at angle projects pressure due to not bearing directly, so
It can be construction steel.Here, " rigidity is high " refers to that deflection becomes smaller in the case where having been assigned identical power, such as
" Young's modulus is high " is equivalent to such case.
And then in the present embodiment, projected area when sliding die SD plane SDf to project to X-direction relative to
The projected area when transfer surface of stent FD transfer surface or But moving die MD to be projected to Z-direction is more than 20%.In addition,
Projected area when sliding die SD plane SDf is projected into X-direction arrives greatly 1000mm2More than.When such plane SDf projection
When area increases, in shaping, according to pascal's principle, the pressure that resins of the sliding die SD out of chamber is subject to becomes big, with it
Correspondingly, the power increase of glide direction is acted on, thus produces sliding die SD minute movement, deformation, it is possible to be able to not can enter
The high-precision shaping of row.In order to avoid the unfavorable condition, consider using the sizable mould of size relative to formed products or
Make the countermeasures such as sliding mould movement using the oil hydraulic cylinder mechanism of Large Copacity, but be all complicated, so causing building mortion large-scale
Change, cost increase.Thus, the building mortion of present embodiment by only by sliding die SD main core SDa and retainer SDc,
Formed with clamping block LB with the high super steel of Young's modulus, so as to suppress shaping when sliding die SD minute movement,
Deformation so that small-sized and cheap and high-precision formed products shaping can be made.In addition, more preferably by sliding die SD plane
Projected area when SDf projects to X-direction projects to Z relative to by the transfer surface of stent FD transfer surface or But moving die MD
Projected area during direction turns into more than 30% situation, in addition, sliding die SD plane SDf more preferably is projected into X
Projected area during direction turns into 1500mm2Situation above.In addition, in patent document 1, on the cunning for shaping engaging portion
The projected area of moving mold, is not recorded specifically in detailed description of the invention, but such as suitable with Fig. 2 of patent document 1
Shown in Figure 11, when can confirm engaging portion STP transfer surface projecting to direction (X-direction) orthogonal with die sinking direction (Z-direction)
Projected area relative to the projected area when transfer surface of stent FD transfer surface or But moving die MD to project to Z-direction
For less than 20%, and its projected area compares 1000mm2It is small.Thus, in such a configuration, it is considered as that transfer need not be made locking
Portion STP sliding mould uses super steel.
Next, explanation has used the manufacturing process of the building mortion of present embodiment.In Fig. 1, when making But moving die MD
Relative to stent FD it is close when, the angle as driving part sells AP front end and is arranged at sliding die SD retainer SDc
Cylinder hole SDd engages, and then But moving die MD is approached along the Z direction, so as to which sliding die SD is linked in a manner of being pushed and along X
Direction turns into matched moulds state close to stent FD.Now, clamping block LB conical surface LBb and retainer SDc conical surface SDu are abutted,
As sliding die SD pressing plate.By so using angle to sell AP, simple mechanism driving sliding die SD can be utilized, so need not
Simplification, the miniaturization of building mortion are can be realized as using large-scale oil gear etc..
Here, when providing the resin of melting from the gate part (not shown) of the paper vertical direction in Fig. 1, resin quilt
There is provided in the closed chamber formed by stent FD, But moving die MD, sliding die SD.Fixed due to injection pressure now
Mould FD and But moving die MD bears big power on both remote directions, but is inhibited movably with 70~100 tons or so of load
Mould MD, to avoid both from relatively moving.In addition, if the movement in But moving die MD Z-direction is prevented from, then each sliding die SD
The movement of X-direction is also blocked from, but if the rigidity of each several part is low, then partly produces flexure etc., it is possible to can cause to slide
Mould SD minute movement.On the other hand, can if forming all parts or increase thickness by the raw material of high rigidity
Effectively suppress sliding die SD movement, but when using the raw material of high rigidity, the processing difficulties of mould are formed, so
Process time increases, and when increasing thickness, the cost caused by causing mould maximization increases, building mortion maximization.Thus,
In the present embodiment, main core SDa, retainer SDc and clamping block LB are formed by using super steel, enabling suppress X
The deformation of each several part on direction, prevent sliding die SD movement, it is ensured that the miniaturization of building mortion, and formed it is high-precision into
Shape product.Meanwhile by the way that stent FD, But moving die MD, rest pad STB etc. are formed by constructing with steel, building mortion can be prevented
Maximization.
Now, the optical surface OP1 of the upside of the formed products MP shown in Fig. 2 is shaped using But moving die MD lower surface, profit
The optical surface OP2 of formed products MP downside is shaped with stent FD upper surface, using two sliding die SD plane SDf come
Shape optical surface OP3, OP4 of formed products MP both sides.
And then when But moving die MD after the resin is cured relative to stent FD away from when, clamping block LB conical surface LBb is remote
Conical surface SDu from retainer SDc, sliding die SD can outside Slideslip, and then angle pin AP sliding die SD retainer SDc is pushed away
Go out to outside, so sliding die SD moves to the X-direction away from stent FD.The time that pin AP is extracted out from cylinder hole SDd at angle
Point sliding die SD stops.In this condition, plane SDf moves back the enough distances of wall from formed products MP, so can easily take out
Formed products MP.
In the formed products MP of taking-up, optically functional film etc. is assigned by as needed, can be formed as shown in Figure 2
Special prism.
The profile for the building mortion that Fig. 3 is as a reference example and shown.In the building mortion shown in Fig. 3, do not have
Sliding die, and only there is stent FD and can be relative to the But moving die MD that stent FD is moved in the vertical direction.It is fixed
Mould FD has a pair of inclined-planes FD1, FD2 in the lateral direction oppositely.Make using the building mortion shown in Fig. 3 shown in Fig. 2
Formed products MP shapings in the case of, the pull-out force of inclined-plane FD1, FD2 after shaping becomes big, and in the demoulding, formed products damage
Wound and yield is possible to deteriorate.In addition, when being machined to stent FD, it is difficult to realize inclined-plane FD1, FD2 mirror
Face is formed, and the manufacturing cost of mould can significantly increase.Thus, it is comprehensive although the building mortion shown in Fig. 3 has simple construction
From the point of view of, it may be said that the building mortion cost shown in Fig. 1 is low and can shape high-precision formed products.
(the 2nd embodiment)
Fig. 4 is the state for showing the laser radar for having used the mirror unit of the 2nd embodiment being equipped on vehicle
Skeleton diagram.But the laser radar of the type is not limited to vehicle-mounted purposes, the shifting such as robot, flyer, ship can be equipped on
Kinetoplast or it is arranged at fixture in the means of transportation such as road, railway.The laser radar LR of present embodiment is arranged at vehicle
1 front window 1a behind or front grille 1b behind.
Fig. 5 is the summary construction diagram for the laser radar LR for having used mirror unit.Fig. 6 is the reflection in laser radar LR
Mirror unit MU profile, but eliminate light projection system and receiving system.
Laser radar LR for example with：The semiconductor laser LD of pulsed, outgoing laser beam；Collimation lens CL, in the future
Directional light is transformed to from semiconductor laser LD diverging light；Mirror unit MU, it will collimated using the mirror surface of rotation
The laser for being formed as parallel in lens CL scans light projector towards object OBJ sides (Fig. 4), and makes pair from scanned light projector
As thing OBJ reflected light back；Lens LS, the reflected light from object OBJ reflected by mirror unit MU is gathered
Light；And photodiode PD, receive the light after optically focused is carried out using lens LS.
Mirror unit MU has the shape for oppositely engaging two substantially polygon frustums and integration, i.e., with 4 pairs into
Over the ground to opposite direction inclined mirror surface M1, M2.Form mirror surface M1, M2's of the 1st optical surface and the 2nd optical surface
Detailed content will be described later, and be formed by the integrally formed product of the resin of the shape in mirror unit MU.
Mirror unit MU is hollow on the whole, has the flange part FL of horizontally extending tabular in center.
In flange part FL center formed with circular open CH.Flange part FL is respectively by the 1st maintaining part PT1 of tabular and the 2nd maintaining part
PT2 is clamped.The periphery for being configured at the 1st maintaining part PT1 of flange part FL lower section is connected to mirror unit in substantially whole week
MU inner circumferential and integratedly rotate.In opening PT1a of the 1st maintaining part PT1 lower surface center formed with non-circular profiles, horse
Chimeric be linked in front end up to MT rotary shaft SH rotates herein and integratedly.Opening PT1a and rotary shaft SH Qian He can also
It is to be carried out by being pressed into.Motor MT as rotary driving source is fixed in the framework FR for keeping laser radar LR.Thus, instead
Penetrating mirror unit MU can be rotated by motor MT driving according to fixed speed.
In addition, in the 1st maintaining part PT1 upper face center so that coaxially planted Cylindorical rod as with rotary shaft SH
PT1b, extend upward by flange part FL circular open CH, and then be formed through the 2nd maintaining part PT2 in circular plate-like shape
Central circular open PT2a.Cylindorical rod PT1b front end is by press-in etc. and chimeric with lid CP.And then be configured at lid CP with
Spring SP G between 2nd maintaining part PT2 is to making the 2nd maintaining part PT2 be exerted a force relative to the remote directions of lid CP, its reaction force
It is passed via Cylindorical rod PT1b, so as to which the 1st maintaining part PT1 is close to flange part FL.Due to forming as above, thus from
When motor MT is arrived in power supply power supply (not shown), rotary shaft SH rotations, mirror unit MU is driven via the 1st maintaining part PT1 by rotation
It is dynamic.
In figure 6, mirror unit MU lower end periphery formed with convex shaped part PJ.Convex shaped part PJ end face formed with
Reflecting part.On the other hand, be provided with framework FR for example can determine its volume reflection to detect convex by projecting detection light
The portion PJ sensor SS passed through.Thus, by reading sensor SS output, mirror unit MU rotating speed can be obtained,
Thereby, it is possible to carry out feedback control using output of the control device (not shown) to motor MT.In addition, mirror unit MU's turns
The detection mode of speed is not limited to the above.Such as convex shaped part can also be not provided with, and concavity is set, but they preferably with speculum
The shaping of unit shapes simultaneously.In addition, convex shaped part PJ can also be arranged at mirror unit MU upper end side.
Light projection system LPS is formed by semiconductor laser LD and collimation lens CL, by lens LS and photodiode PD structures
Into receiving system RPS.Light projection system LPS, receiving system RPS optical axis are orthogonal with mirror unit MU rotation axis RO.
Next, explanation laser radar LR object detection operation.In Fig. 5,6, from semiconductor laser LD with arteries and veins
Rush the diverging light that shape intermittently projects and be transformed to collimated light beam in collimation lens CL, incide the mirror unit MU's of rotation
1st mirror surface M1, reflected, and then reflected by the 2nd mirror surface M2 herein, cutd open afterwards as such as rectangle with lengthwise
The laser spots light in face and scanned light projector are to outside object OBJ sides.
Fig. 7 is to show that the rotation with mirror unit MU correspondingly uses the laser spots light SB (using shadow representation) projected to swashing
The figure for the state being scanned in optical radar LR detection range RG.It is anti-in mirror unit MU the 1st mirror surface M1 and the 2nd
Penetrate in minute surface M2 combination, as described later, the angle of the crossing is respectively different.The 1st mirror surface M1 and the 2nd speculum that laser is rotated
Face M2 reflects successively.First by the laser that the 1st couple of the 1st mirror surface M1 and the 2nd mirror surface M2 reflects and mirror unit MU
Rotation correspondingly, the region Ln1 of Scanning Detction scope RG topmost from left to right in the horizontal direction.Next, by the 2nd pair
Laser and the mirror unit MU of 1st mirror surface M1 and the 2nd mirror surface M2 reflections rotation correspondingly, in the horizontal direction from
From left to right scans the top Two Areas Ln2 from detection range RG.It is next, anti-to the 1st mirror surface M1 and the 2nd by the 3rd
The rotation for penetrating the laser and mirror unit MU of minute surface M2 reflections correspondingly, scans from detection range from left to right in the horizontal direction
RG the 3rd, top region Ln3.Next, by the laser that the 4th couple of the 1st mirror surface M1 and the 2nd mirror surface reflect with it is anti-
Penetrate mirror unit MU rotation correspondingly, in the horizontal direction the region Ln4 of Scanning Detction scope RG foot from left to right.By
This, 1 time overall detection range RG scanning is completed.Then, if the 1st pair of the 1st reflection after mirror unit MU rotates 1 week
Minute surface M1 and the 2nd mirror surface M2 is returned, then is repeated again from the region Ln1 of detection range RG topmost to the area of foot
Scanning untill the Ln4 of domain.
In Fig. 5,6, arrival object OBJ in the light beam of scanned light projector and the part of laser that reflects enters again
Mirror unit MU the 2nd mirror surface M2 is mapped to, is reflected herein, and then is reflected by the 1st mirror surface M1, is gathered by lens LS
Light, it is detected respectively in photodiode PD smooth surface.Thereby, it is possible to the whole region in detection range RG to carry out object
Thing OBJ detection.
Next, the manufacturing process of explanation mirror unit.Fig. 8 be so that for formed the formed products of mirror unit into
The profile of the building mortion of the present embodiment of shape, Fig. 9 are the profiles for the major part for showing building mortion, Figure 10 be by
The stereogram that sliding die periphery is amplified and shown, is cut off by the section (XZ faces) at the center by sliding die.
In fig. 8, stent FD is installed on the pedestal BS being fixed on platform (not shown), in addition with angle described later
Pin AP has been correspondingly formed opening BSa.In addition, ground But moving die opposite with stent (also known as fixing mould) FD is (also known as
Moveable die) MD is configured to move in the vertical direction using driving source (not shown).And then 4 (in Fig. 8,9
Only illustrating two, but the remaining two similarly opposite configurations in paper vertical direction) sliding die SD is configured to
Moved in the horizontal direction relative to stent FD.Here, in Fig. 8,9, above-below direction (mould opening and closing direction) is set to Z side
To horizontal direction (glide direction) is set into X-direction or Y-direction (in Fig. 8,9, only illustrating X-direction).
In fig.9, stent FD has the inner circumferential transfer surface FDa of substantially four side frustums, is arranged at inner circumferential transfer surface FDa
Top plane flange transfer section FDb and be formed at flange transfer section FDb central cylindric transfer section FDc.
In addition, the guide surface FDd formed with guiding sliding die SD around stent FD inner circumferential transfer surface FDa.Although in addition, not
Diagram, but stent FD has the transfer section for the convex shaped part PJ for being used to be formed mirror unit MU.
On the other hand, But moving die MD has the inner circumferential transfer surface MDa of substantially four side frustums, is arranged at inner circumferential transfer surface
The plane flange transfer surface MDb at MDa top and it is communicated to 4 of flange transfer surface MDb from But moving die MD upper end
Needle-like gate portion MDc.Each needle-like gate portion MDc in a manner of the center equidistance from flange transfer surface MDb in the circumferential etc.
Compartment of terrain configures, i.e., the centre position with adjacent sliding die SD boundary portion accordingly configures.By the configuration, from each pin
The resin that shape gate part MDc is provided is deployed into chamber between sliding die SD aftermentioned 1st plane SDe and the 2nd plane SDf
When, the mutual front end crash of resin, the border for making so-called weld line be located at sliding die SD, thus do not produce mistake in mirror surface
True wait influences.
As shown in figure 8, But moving die MD is supported by block STB holdings, rest pad STB is fixed in plate portion PT in addition, and they are in Z
Integratedly moved on direction.In plate portion PT lower surface formed with the upper surface for exposing needle-like gate portion MDc for being supported by block STB
The recess CC blocked, so cause insertion support SP and with being communicated to recess CC formed with injection oral area SL.Inject oral area SL
The offer source of resin (not shown) is provided.
Formed with 4 recess S TBa around rest pad STB But moving die MD so that and it is fitted to recess S TBa and consolidates
Determine clamping block LB.As shown in figure 9, clamping block LB has with the axis AX away from But moving die MD towards stent FD sides
The inclined through hole LBa of mode and tilted by with towards stent FD sides in a manner of the axis AX away from But moving die MD
Conical surface LBb.Top inserts of the AP out of through hole LBa is sold at angle, its lower end side is exposed from clamping block LB.The angle pin AP exposed
By with towards stent FD sides and respectively with identical angle tilt in a manner of the axis AX away from But moving die MD.
In Figure 10 as profile, 4 sliding die SD have main core SDa, secondary core SDb, fixed holding main core respectively
SDa and secondary core SDb retainer SDc.Retainer SDc have by can accommodate angle pin AP in a manner of inclined cylinder hole SDd,
Accordingly inclined conical surface SDu and drawing with clamping block LB conical surface LBb along what the edge opposite with conical surface SDu protruded
Lead portion SDv.Guide portion SDv has the function of guiding close clamping block LB.Retainer SDc and the guiding for being arranged at stent FD
Face FDd (Fig. 9) guiding piece engages and can moved in the x direction or the y direction.
Main core SDa has inclined 1st planes (the 1st sliding die transfer surface) of axis AX (Fig. 9) relative to But moving die MD
SDe, to 2nd plane (2nd sliding die transfer surface) SDf inclined with the 1st plane SDe opposite side, be formed at the 1st plane SDe
Median surface SDg between the 2nd plane SDf, the 1st joint face transfer surface SDh adjacently formed in the 1st plane SDe both sides
(only illustrating a side in Fig. 10) and the 2nd joint face transfer surface SDi adjacently formed in the 2nd plane SDf both sides
(only illustrating a side in Fig. 10).1st plane SDe and the 2nd plane SDf are formed at same main core SDa, thus can precision it is good
Both inclinations angle are ensured well.In addition, the 1st joint face transfer surface SDh and the 2nd joint face transfer surface SDi are preferably concave
Curved surface.
In the present embodiment, under the matched moulds state shown in Fig. 8 (b), using each sliding die SD as starting point, as along X
1st part of direction and Y-direction configuration and use super steel (such as Young's modulus is more than 400GPa) formation main core SDa,
Retainer SDc and clamping block LB.On the other hand, as the 2nd part configured along the Z direction and with being easy to what is inexpensively obtained
Construction steel (such as Young's modulus is below 250GPa) forms stent FD, But moving die MD, rest pad STB etc., so that into
This reduction.The rigidity of 1st part is higher than the 2nd part.Wherein, if with super steel formed main core SDa, retainer SDc and
At least one in clamping block LB is with regard to enough.In addition, angle pin AP does not bear directly to project pressure, so construction can also be used to use
Steel.
In the present embodiment, 4 main core SDa shape is mutually different.More specifically, the 1st plane SDe is relative to axle
Line AX is respectively with 45 degree of inclinations, and the 2nd plane SDf is different relative to the 1st plane SDe inclination angle (angle of the crossing), and for example, 88
Spend, 90 degree, 92 degree, 94 degree.In addition, the selection at inclination angle is arbitrary, but for 3-dimensional measurement object thing OBJ, preferably phase
Mutually more than 0.5 degree of difference.In addition, the 1st plane SDe and the 2nd plane SDf area for example arrives greatly 100mm2More than, two areas
It is preferably equal, but can also differ within ± 20%.
On the other hand, secondary core SDb has with the 1st outer peripheral face SDj of the dome shape of the 1st plane SDe adjoinings (in Fig. 10 only
Illustrate a side) and with the 2nd plane SDf adjoining dome shape the 2nd outer peripheral face SDk (only illustrating a side in Fig. 10).
In the present embodiment, as shown in figure 9, sliding die SD can exceed between inclined 1st plane SDe upper end P1 and lower end P2
Distance L along the X direction slide in the X direction.In addition, the sliding die SD configured in the Y direction is also identical.Namely
Say, " when taking out the formed products after shaping, scope that the 1st optical surface or the 2nd optical surface disturb with sliding die " for example
Refer to " one end on the mould of the 1st optical surface of formed products or the 2nd optical surface opening and closing direction with and its opposite side the other end
Between the distance L " along glide direction.
In the state of sliding die SD is moved to most inner side, the 1st adjacent joint face transfer surface SDh does not have each other in the circumferential
Contact with a gap and the 1st adjacent in the circumferential outer peripheral face SDj is contacted each other very close to each otherly, in addition, similarly the 2nd company
Junction transfer surface SDi is contacted each other very close to each otherly and the 2nd outer peripheral face SDk is contacted each other very close to each otherly.
Next, explanation has used the manufacturing process of the building mortion of present embodiment.When making But moving die MD from Fig. 8 (b)
Shown state relative to stent FD it is close when, angle pin AP front end and be arranged at sliding die SD retainer SDc cylinder
Hole SDd engages, and then But moving die MD is approached along the Z direction, so as to which sliding die SD is linked and along the X direction in a manner of being pushed
And Y-direction turns into the state of the matched moulds shown in Fig. 8 (a) close to stent FD.Now, clamping block LB conical surface LBb is with keeping
Frame SDc conical surface SDu is abutted, and turns into sliding die SD pressing plate.In addition, insertion sliding die SD cylinder hole SDd angle pin AP
Front end is entered in pedestal BS opening BSa.Slippage thus, it is possible to ensure sliding die SD.By so using angle to sell AP,
Simple mechanism driving sliding die SD can be utilized, so can be realized as building mortion without using large-scale oil gear etc.
Simplification, miniaturization.
Here, when the resin from outside is when providing source and providing the resin of melting via injection oral area SL, resin is from recess
CC is equably provided in 4 needle-like gate portion MDc, and resin is provided to by stent FD, But moving die MD, sliding die SD shapes
Into closed chamber in.Due to injection pressure now, stent FD and But moving die MD are born on both remote directions
Big power, but But moving die MD is inhibited with 70~100 tons or so of load, to avoid both from relatively moving.It is as long as in addition, movable
The movements of mould MD in z-direction are prevented from, then each sliding die SD is also blocked from the movement of X-direction and Y-direction, but if respectively
Partial rigidity is low, then partly produces flexure etc., it is possible to can cause sliding die SD minute movement.On the other hand, if
All parts or increase thickness are formed by the raw material of high rigidity, then can effectively suppress sliding die SD movement, but
Cause high cost, the maximization of building mortion.Thus, in the present embodiment, form main core SDa by using super steel, protect
Frame SDc and clamping block LB is held, the deformation of each several part in X-direction and Y-direction can be suppressed, prevents sliding die SD shifting
It is dynamic, it is ensured that the miniaturization of building mortion, and form high-precision formed products.Meanwhile the fixation by that will configure along the Z direction
Mould FD, But moving die MD, rest pad STB etc. are formed with construction with steel, can realize the cost degradation of building mortion.
Now, formed products MP (with mirror unit MU identicals shape) is formed by stent FD inner circumferential transfer surface FDa
Side inner peripheral surface, flange part FL lower surface is formed by flange transfer surface FDb, flange is formed by cylindric transfer section FDc
Portion FL circular open CH, convex shaped part PJ (reference picture 6) is formed by transfer section (not shown) in addition.In addition, by But moving die MD's
Inner circumferential transfer surface MDa forms the inner peripheral surface of formed products MP opposite side, and flange part FL upper table is formed by flange transfer surface MDb
Face.Here, preferably formed products MP center of gravity G (reference picture 6) is consistent with mirror unit MU rotation axis RO, it is more specific and
Speech, makes center of gravity G be in circular open CH, preferably makes the center that center of gravity G is circular open CH, so as to suppress to reflect
Swing during mirror unit MU rotation.In addition, during matched moulds by adjusting stent FD, But moving die MD and each sliding die SD
Position, product MP centre of gravity adjustment can be formed.
And then the 1st optical surface is formed by sliding die SD main core SDa the 1st plane SDe, form the 2nd by the 2nd plane SDf
Optical surface, joint face MUe (reference picture 5) is formed by median surface SDg, formed curved by the 1st joint face transfer surface SDh or fallen
1st joint face MUa (reference picture 5) of angular shape, the 2nd of curved or chamfer shape is formed by the 2nd joint face transfer surface SDi
Joint face MUb (reference picture 5), the 1st outer peripheral face MUc of dome shape is formed by the 1st outer peripheral face SDj, is formed by the 2nd outer peripheral face SDk
2nd outer peripheral face MUd of dome shape.Mirror unit MU miniaturization can be realized using the 1st outer peripheral face MUc, the 2nd outer peripheral face Mud
With the reduction of rotational resistance.
In addition, in the circumferential between the 1st adjacent joint face MUa and the 2nd adjacent in the circumferential joint face
The MUb parting line PTL (reference picture 5) formed with sliding die SD, but both almost do not connect poorly highly each other, especially
It is in the case of the inclination angle difference of the 2nd optical surface, can also suppresses its influence.In addition, the abut in the circumferential the 1st
Also almost height does not connect poorly the 2nd outer peripheral face MUd of outer peripheral face MUc each other, adjacent in the circumferential each other.And then such as Fig. 6
Shown, the joint face MUe preferred profiles as flange part FL periphery are arc-shaped.Thus, paired the 1st optical surface and the 2nd
Optical surface smoothly connects.
And then when after the resin is cured, make But moving die MD relative to stent FD away from when, the clamping block LB conical surface
The LBb conical surface SDu away from retainer SDc, sliding die SD can outside Slideslip, and then angle pin AP keep out of the way from opening BSa, and
Sliding die SD retainer SDc is released and arrives outside, so sliding die SD moves to the X-direction away from stent FD and Y-direction
It is dynamic.Sliding die SD sells AP at angle and stopped from the cylinder hole SDd time points extracted out, and in this condition, exceed and formed products MP
The suitable distance L (Fig. 9) of undercut portions, sliding die SD moves the 1st optical surface and the 2nd optical surface does not cause to do to sliding die SD
Disturb the distance with regard to formed products MP can be taken out.Thus, by making But moving die MD to be taken out into away to the state shown in Fig. 8 (b)
Shape product MP.
In the formed products MP of taking-up, vacuum evaporation by being used as shaping post processing etc. is in the 1st optical surface and the 2nd optics
Face forms metal film (Al, Ag etc.) etc., so as to form the 1st mirror surface M1 and the 2nd reflection that reflectivity is more than 90%
Minute surface M2, thereby, it is possible to form Fig. 5, the mirror unit MU shown in 6.1st mirror surface M1 and the 2nd mirror surface M2 phase
It is preferably more than 45 degree and less than 135 degree to angle of inclination.Afterwards, enable to keep via the 1st maintaining part PT1 and the 2nd
Portion PT2 etc. links motor MT rotary shaft SH and mirror unit MU is assembled into laser radar LR.Now, can be by flange part
Reference plane when FL upper surface or lower surface is as assembling.
Hereinafter, the experimental result that the present inventors are carried out is illustrated.In order to confirm effect of the present invention, original is preferably to work as closing
Evaluate how the mutual gaps of sliding die SD change when pressure is projected as defined in being applied with during mould, but be difficult to directly measure should between
Gap.Thus, the length of the overlap formed using the resin solidification gone out from the clearance leakage evaluates the mutual gap of sliding die.
In the case of gap-ratio is less, when be set to resin, injection condition it is identical when, the length of overlap and the interval in gap are generally in line
The relation of property.Here, using the building mortion shown in Fig. 8, under conditions of following comparative example and embodiment 1,2, closing
With 75 tons of extruding But moving die MD during mould, to project the injection molding that pressure 100MPa carries out thermoplastic resin, to the length of overlap
Degree is evaluated.
Comparative example：By rest pad, pedestal, stent, But moving die, sliding die, clamping block all with construction steel (Young mould
Measure as 210GPa) formed.
Embodiment 1：Only clamping block is formed with super steel (Young's modulus 520GPa), by rest pad, pedestal, fixation
Mould, But moving die, sliding die are all formed with construction with steel (Young's modulus 210GPa).
Embodiment 2：Clamping block and main core are formed with super steel (Young's modulus 520GPa), with construction steel (poplar
Family name's modulus is 210GPa) form rest pad, pedestal, stent, But moving die, the sliding die in addition to main core.
Table 1 shows its evaluation result.In the evaluation of table 1, × mean overlap length be more than 100 μm, can not make
With, on the other hand, zero mean overlap length be less than 100 μm, ◎ mean it is unconfirmed go out overlap, so can use.
[table 1]
Result shown in investigation table 1, when making rest pad, pedestal, stent, But moving die, sliding die, lock as comparative example
Determine block all using construction steel when, born by the 1st sliding die transfer surface of bigger area and the 2nd sliding die transfer surface
Pressure is projected, so as to not have along glide direction for enough firm of in the sliding die caused excessive extruding force of contending with
Property, so sliding die haves no alternative but carry out movement to a certain degree, as a result, confirming as the mutual gap of sliding die becomes big.Relatively
In this, by making clamping block use super steel as in Example 1, rigidly more improved along glide direction, suppress to slide
The amount of movement of mould, so as to confirm as can suppressing small by the mutual gap of sliding die.And then as in Example 2 except lock
Determine main core outside block and also use super steel, so as to further be improved along glide direction rigidity, can firmly hold sliding
Dynamic model, to avoid moving, so confirming as being nearly free from the mutual gap of sliding die.In addition to situation more than, if
Retainer also uses super steel, then along glide direction, rigidity further improves, so can it is expected to tackle higher
Project pressure.
The present invention is not limited to embodiment and embodiment described in this specification, for this area skill of this area
For art personnel, embodiment, embodiment according to described in this specification, technological thought, including other embodiment, implementation
Example and variation are obvious.For example, it is also possible on above-mentioned embodiment, make main core has the transfer of the 1st sliding die
The core components in face and the core components with the 2nd sliding die transfer surface are different parts, enabling separately adjustment is prominent
Output.Thus, in formed products, the micro-adjustment of the position of the 1st optical surface and the 2nd optical surface can be carried out, so can control
Mirror unit MU position of centre of gravity, shake during rotation can be suppressed.In this case, preferably by two core components (with
Separator in the case of the separator of setting adjustment between retainer) formed respectively by super steel.
And then in embodiment described above, sliding die SD quantity (N) is set to 4, but both can be 3,
Or it can also be more than 5.In addition, in formed products, can both make mutual not relative to the angle of the 1st optical surface of axis
Make the angle of the 2nd optical surface mutually equal together, the angle of the 1st optical surface and the angle difference of the 2nd optical surface can also be made
It is different.1st optical surface and the 2nd optical surface are not limited to plane or curved surface.
Claims (13)
1. a kind of building mortion, make the formed products shaping for possessing optical surface, have：
Fixing mould；
Moveable die, it can be opened and closed on direction in mould and be moved relative to the fixing mould；
Driving part, it is linked to the moveable die and integratedly moves；And
Sliding die, when the moveable die moves up in the mould opening and closing side, in the cunning intersected with mould opening and closing direction
Driven on dynamic direction by the driving part,
The sliding die has the sliding die transfer surface that transfer forms the optical surface,
When making the moveable die be moved along mould opening and closing direction to the die-closed position for the fixing mould, along
The rigidity of 1st part of the glide direction configuration is higher than the rigidity of the 2nd part along mould opening and closing direction configuration.
2. building mortion according to claim 1, wherein,
Projected area when the sliding die transfer surface of the sliding mould to project to the glide direction is relative to will be described solid
The projected area when transfer surface of the transfer surface of fixed mold or the moveable die projects to the mould opening and closing direction is 20%
More than.
3. the building mortion according to claims 1 or 2, wherein,
Projected area when the sliding die transfer surface of the sliding mould to be projected to the glide direction is 1000mm2More than.
4. the building mortion described in any one in claims 1 to 3, wherein,
The building mortion has clamping block, and the clamping block is linked to the moveable die and integratedly moved, and in matched moulds, resists
Weigh shaping that the sliding die transfer surface is born when pressure and support the sliding die, the clamping block is the 1st part,
The fixing mould and/or the moveable die are the 2nd parts.
5. the building mortion described in any one in Claims 1 to 4, wherein,
The sliding die includes the core with the sliding die transfer surface and keeps the retainer of the core, and the core is institute
The 1st part is stated, the fixing mould and/or the moveable die are the 2nd parts.
6. the building mortion described in any one in Claims 1 to 4, wherein,
The formed products possess the 1st optical surface and the 2nd optical surface obliquely extended to direction opposite each other, the sliding die
Transferred with the 1st sliding die for being provided with transfer the 1st optical surface tilted respectively relative to mould opening and closing direction
Face and the core of the 2nd sliding die transfer surface and the retainer of the holding core for transferring the 2nd optical surface, the core is institute
The 1st part is stated, the fixing mould and/or the moveable die are the 2nd parts.
7. according to the building mortion described in claim 5 or 6, wherein,
The retainer is the 1st part.
8. according to the building mortion described in claim 6 or 7, wherein,
The sliding die can be after forming the formed products taking-up when with more than the 1st optical surface or the described 2nd
The mode for the scope that optical surface disturbs with the sliding die is slided.
9. the building mortion described in any one in claim 1~8, wherein,
The Young's modulus of 1st part is more than 400GPa, and the Young's modulus of the 2nd part is below 250GPa.
10. the building mortion described in any one in claim 1~9, wherein,
The raw material of 1st part are super steel.
11. a kind of formed products, the formed products are that the building mortion described in any one in usage right requirement 1~10 forms
Shape.
12. formed products according to claim 11, wherein,
The formed products possess multiple to be made up of the 1st optical surface and the 2nd optical surface obliquely extended to direction opposite each other
Pair, be provided with the circumferential between adjacent the 1st optical surface and between the 2nd optical surface adjacent in the circumferential
Parting line based on the sliding die.
13. a kind of mirror unit, the mirror unit is by the 1st light to the formed products described in claim 12
Face forms reflectance coating so as to form the 1st reflecting surface, by forming the 2nd reflection into reflectance coating to the 2nd optical surface profile
What face formed.
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| JP2015146423 | 2015-07-24 | ||
| JP2015-146423 | 2015-07-24 | ||
| PCT/JP2016/067009 WO2017018064A1 (en) | 2015-07-24 | 2016-06-08 | Molding device, molded article, and mirror unit |
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| CN110501888A (en) * | 2018-05-17 | 2019-11-26 | 柯尼卡美能达株式会社 | Image forming apparatus and recording medium |
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| CN1747824A (en) * | 2003-02-18 | 2006-03-15 | 吉田工业株式会社 | Double-side in-mold transfer molding method |
| CN103025496A (en) * | 2010-07-30 | 2013-04-03 | 柯尼卡美能达先进多层薄膜株式会社 | Molding device and molding method |
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| JP2837466B2 (en) * | 1989-10-16 | 1998-12-16 | 富士通株式会社 | Rotating polygon mirror manufacturing method |
| JPH06331918A (en) * | 1993-05-19 | 1994-12-02 | Ricoh Co Ltd | Rotary polygon mirror and optical scanner provided with the same |
| JP2001341165A (en) * | 2000-05-30 | 2001-12-11 | Sekisui Chem Co Ltd | Mold for injection molding |
| JP2007237665A (en) * | 2006-03-10 | 2007-09-20 | Matsushita Electric Ind Co Ltd | Manufacturing method of resin shaped body |
| EP2985650B1 (en) * | 2013-04-11 | 2020-03-04 | Konica Minolta, Inc. | Scanning optical system and radar |
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|---|---|---|---|---|
| CN1747824A (en) * | 2003-02-18 | 2006-03-15 | 吉田工业株式会社 | Double-side in-mold transfer molding method |
| CN103025496A (en) * | 2010-07-30 | 2013-04-03 | 柯尼卡美能达先进多层薄膜株式会社 | Molding device and molding method |
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| CN110501888A (en) * | 2018-05-17 | 2019-11-26 | 柯尼卡美能达株式会社 | Image forming apparatus and recording medium |
| CN110501888B (en) * | 2018-05-17 | 2022-04-08 | 柯尼卡美能达株式会社 | Image forming apparatus and recording medium |
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| JPWO2017018064A1 (en) | 2018-05-10 |
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