CN108312430A - A kind of band cylindrical optical ball cover and its mold - Google Patents
A kind of band cylindrical optical ball cover and its mold Download PDFInfo
- Publication number
- CN108312430A CN108312430A CN201810030693.7A CN201810030693A CN108312430A CN 108312430 A CN108312430 A CN 108312430A CN 201810030693 A CN201810030693 A CN 201810030693A CN 108312430 A CN108312430 A CN 108312430A
- Authority
- CN
- China
- Prior art keywords
- ball cover
- hanging platform
- fixed ring
- height
- punch insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- 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
- B29C2045/2697—Deformed geometry of the cavity
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A kind of band cylindrical optical ball cover is to be improved to existing ball cover, in the end of column inner surface（That is flange inner surface）It is machined with the technique step that internal diameter is more than column inner surface.Mold used is improved on existing mold foundation, cavity plate remains unchanged, punch insert height becomes short, main change is fixed ring, a circle hanging platform is increased on original fixed ring second step face, form hanging platform and recessed coil structures, cavity plate die joint and fixed ring first step flat face, punch insert fitting plane connects with hanging platform upper surface, the outer diameter of hanging platform is equal to the internal diameter of technique step, the outer diameter of punch insert fitting plane 0.1 0.3mm smaller than hanging platform outer diameter, the depth and width of recessed circle are equal to the height and width of flange.The present invention increases a technique step in Design Stage, realizes the adjustability of mold by the way of increasing a hanging platform in fixed ring in the injection mould processing stage, can reduce processing cost and time to greatest extent, ensure product quality.
Description
Technical field
The invention belongs to a kind of product design and mould processing technology structures more particularly to optical ball cover to process.
Background technology
Band cylindrical optical ball cover of the present invention is used in spherical camera for protecting camera lens and participating in being imaged
Injection molding optical ball cover, the spherical surface of traditional ball cover no more than hemisphere, otherwise will produce injection molding back-off phenomenon, for expand video camera
The field angle of imaging and region can increase cylinder connection, and by optical manufacturing, the cylinder section of ball cover can also be used for being imaged.Such as
Fig. 1, shown in 2, ball cover outer surface carries out transition by spherical outside surface 41a and outer cylinder 41b in a manner of tangent, forms outside entire product
Surface, ball cover inner surface carry out rounding off, the projection of ball cover 4 by ball inner surface 42a and column inner surface 42b in a manner of tangent
Face is complete disc, and the optical surface of the spherical surface and cylinder partial composition ball cover of surfaces externally and internally, there is a flange 44 in bottom surface, uses
In the assembly of optical ball cover.Flange includes that upper surface, baseplane and outer ring height face are Non-optical surfaces.
Its mold moulding section is as shown in Figure 3,4, and by cavity plate 1, punch insert 2 and fixed ring 3 form, and cavity plate is for being molded
The outer surface of ball cover, punch insert are used to be molded the inner surface of ball cover, and fixed ring 3 is used for solid punch core 2, fixes the latter two assembly
Together, displacement is not will produce, in addition the flange 44 of ball cover is also by fixed ring forming.Cavity plate die joint 12 and fixed ring first
Step plane 31 connects, punch insert fitting plane 22 connects with fixed ring second step plane 34, fixed ring second step face 34
Less than fixed ring First terrace 31, the difference in height of the two is the thickness of flange, and flange 44 is formed after cast.Punch insert
The outer diameter of fitting plane 22 is less than the outer diameter 34a in fixed ring second step face, and the difference of the two is the width of flange.Fixed ring
First step plane 31 is the die joint of fixed ring and cavity plate, and fixed ring second step face 34 is fixed ring and punch insert and ball cover
The die joint of flange.
We have found that ball cover spherical diameter is D in manufacturing process, and ball cover cylinder height H works as 0.4D>H>When 0.15D,
It is molded in melt filling process, as melt gradually extends to the climbing stroke of spherical surface top-direction, this section is to spherical surface top side
Filling can not be completed before bottom border melt is closed to filling melt, make the air in die cavity that can not be completely exhausted out, slight
There can be optical imagery performance after molding not reaching requirement, it is serious, molding trapped gas phenomenon is will produce, or even burn optics
Finished surface.Since such case can not accurately be expected in the design process, the especially requirement of optical property only exists
Production is out rear or needs to be detected using special instrument, could find.And mold production at this time is complete
At remodifying design, processing mold, since the casting area of cavity plate and punch insert is optical manufacturing face, cost of manufacture is high, greatly
Extend process time, and increases considerably processing cost.
Invention content
It is an object of the invention to solve the problems, such as existing band cylindrical optical ball cover casting process, a kind of tool is provided
There is the band cylindrical optical ball cover of technique step structure to reduce production difficulty and production cost.
The technical solution adopted in the present invention is a kind of band cylindrical optical ball cover, and ball cover outer surface is by spherical outside surface and outer cylinder
Transition is carried out in a manner of tangent, with the entire product external surfaces of composition, ball cover inner surface is by ball inner surface with column inner surface with phase
The mode cut carries out rounding off, is characterized by, and the end of column inner surface is machined with the process area that internal diameter is more than column inner surface
Rank forms entire product inner surface, spherical surface and the cylinder partial composition ball cover of surfaces externally and internally with ball inner surface and column inner surface
Optical surface, flange includes baseplane and inside and outside height face is Non-optical surfaces, is used for the assembly of optical ball cover.
The present invention is improved to existing band cylindrical optical ball cover, in the end of column inner surface（That is flange inner surface）
It is machined with the technique step that internal diameter is more than column inner surface.Since existing flange bottom surface, upper surface and outer peripheral surface are non-
Optical surface, even inner surface optical surface is also not practical, so technique step is designed to Non-optical surfaces,
Not only without the optical property of the original ball cover of reduction, it can play the role of reducing optical surface working (finishing) area instead, to reduce production
Difficulty and production cost.
The height of technique step is equal with the height of flange.It, can be in the case where not influencing the optical property of ball cover
To greatest extent reduce ball cover inner surface optical manufacturing area and retain it is maximum face height drops, for the later stage adjust.
The internal diameter of technique step is bigger 0.1-0.3mm than column inner surface.
A kind of mold with cylindrical optical ball cover, by cavity plate, punch insert and fixed ring composition, which is characterized in that fixed
The upper surface of ring is made of hanging platform upper surface, recessed circle, fixed ring first step plane, cavity plate die joint and fixed ring first step
Flat face, punch insert fitting plane connect with hanging platform upper surface, and the outer diameter of hanging platform is equal to the internal diameter of technique step, punch insert dress
Outer diameter with plane is smaller 0.1-0.3mm than hanging platform outer diameter, and the depth and width of recessed circle are equal to the height and width of flange.
The mold of the present invention is improved on existing mold foundation, and cavity plate remains unchanged, and punch insert height becomes short,
Main change is fixed ring, increases a circle hanging platform on original fixed ring second step face, forms hanging platform and recessed circle
Structure, hanging platform upper surface are fixed ring and punch insert die joint, and recessed circle is the die joint of fixed ring and ball cover flange, punch insert
The height of reduction is equal to the height of hanging platform（The distance between hanging platform upper surface and recessed circle）.
The casting area of cavity plate and punch insert is optical manufacturing face, and cost of manufacture is high, and fixed ring is non-optical machined surface, fixed
On ring increased hanging platform height it is identical as the height of punch insert cylinder reduction, so the effect of hanging platform：First, can reduce convex
The optical manufacturing area and processing cost of mold core cylinder；Second is that working as 0.4D>H>When 0.15D, in being molded melt filling process, go out
Air in existing die cavity can not be completely exhausted out, and optical imagery performance after molding does not reach requirement, or when generation trapped gas phenomenon,
In the case that optical property does not reach requirement after ball cover difficult forming occur or being molded, it may be used and increase product optical region
Wall thickness, improving the mode of melt flow velocity is improved, and mold two mold core optical surface of bumps makes ball no longer without any processing
The outer profile of cover and the optical surface of interior outside remain unchanged.Can the height of the hanging platform in fixed ring be subjected to drop surface treatment, than
Such as decline 0.1, punch insert fitting plane is with after the assembly of fixed ring hanging platform, and ball cover optics area entirety wall thickness increases, wherein spherical surface top
Portion's wall thickness will increase to 0.1, keep smooth in exhaust in die cavity, melt flow resistance small, improve plastic melt flowing when molding
Property.It in this way can be in the case where keeping the flange thickness of non-optical regions constant, by increasing cylinder and spherical surface position wall
Thickness, accelerate melt ball cover spherical surface top-direction flowing velocity, to solve arranged in die cavity in being molded melt filling process
The problem of gas is unsmooth, melt constricted flow.Punch insert cylinder is carried out if no hanging platform（Belong to optical surface）It is dropped
Face simultaneously re-works, this is by very big extension process time and increases considerably processing cost.And with existing processing technology, also very
Difficulty individually carries out the processing of drop face in the case where not damaging punch insert optical surface to the mounting plane of punch insert.
The outer diameter of punch insert fitting plane is smaller 0.1-0.3mm than hanging platform outer diameter, and the processing and assembly of mold may be implemented, keep away
Exempt to occur, because processing the error with assembly, causing mold fixed ring hanging platform to generate back-off with punch insert coupling part, influencing product
Demoulding.
Hanging platform upper surface is concordant with fixed ring first step plane.Ensure the height phase of the height and flange of technique step
Deng.It avoids generating not concordant two lines on flange horizontal line, while optical manufacturing area can be reduced to greatest extent.
The present invention increases a technique step in Design Stage, in the injection mould processing stage, using in fixed ring
The upper mode for increasing a hanging platform, realizes the adjustability of mold.
The advantage of the invention is that small to existing product and mold change, since there are technique steps, so that mould is provided with can
The space of adjustment, can be conveniently by adjusting mold to make up the insufficient problem of design, while utilizing the fixed ring of non-optical structure
As the regulating object of entire mold, compensates in design and be difficult to expect deficiency, it need not be to the recessed of optical manufacturing be completed
Mould is handled with punch insert, is only processed to hanging platform height this size in fixed ring, is completed structural adjustment, is not influenced
Optical surface avoids re-working for optical surface, can reduce processing cost and time to greatest extent, ensures product quality.
Description of the drawings
Fig. 1 is existing band cylindrical optical ball cover structural schematic diagram
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is the existing molding structure molding figure with cylindrical optical ball cover
Fig. 4 is the existing mold explosive view with cylindrical optical ball cover
Fig. 5 is the structural schematic diagram of the present invention
Fig. 6 is ball cover technique step partial enlarged view at Fig. 5 A
Fig. 7 is ball cover molding structure of the present invention molding figure
Fig. 8 is inventive die explosive view
Wherein：1 cavity plate, 12 cavity plate die joint, 2 punch insert, 22 punch insert fitting plane, 3 fixed ring, 31 fixed ring First
Outside 34 fixed ring second step face of height, the 4 ball cover 41a spherical outside surfaces 41b of the 33 hanging platform 33b hanging platforms of recessed circle of rank plane 32
44 flange of cylinder 42a ball inner surface 42b columns inner surfaces, 45 technique step D ball cover spherical diameter H cylinder height H '
The cylinder height of punch insert after improvement.
Specific implementation mode
The following examples can make professional and technical personnel more understand the present invention, modify to following implementation,
Addition and replacement are all possible, all without departing from protection scope of the present invention.
As shown in Figure 5,6, the present invention is a kind of band cylindrical optical ball cover, is improved to existing band cylindrical optical ball cover,
Retain the design of all opticators of existing product, ball cover outer surface is by spherical outside surface 41a and outer cylinder 41b in a manner of tangent
Transition is carried out, forms entire product external surfaces, ball cover inner surface is by ball inner surface 42a and column inner surface 42b in a manner of tangent
Rounding off is carried out, except that the end of column inner surface 42b is machined with the technique step 45 that internal diameter is more than column inner surface, with
Ball inner surface 42a and column inner surface 42b forms entire product inner surface, spherical surface and the cylinder partial composition ball cover of surfaces externally and internally
Optical surface, flange 44 are Non-optical surfaces including upper surface, baseplane and inside and outside height face, are used for the dress of optical ball cover
Match, the height of technique step is equal with the height of flange, and technique step is also Non-optical surfaces.The internal diameter of technique step compares column
The big 0.1-0.3mm of inner surface, such as the ball cover a diameter of 50mm of the lowermost cylinder, then the internal diameter of technique step is 50.1-50.3mm.
As shown in Figure 7,8, mold of the invention is changed on a kind of existing mold foundation with cylindrical optical ball cover
Into by cavity plate 1, punch insert 2 and fixed ring 3 form, and cavity plate remains unchanged, and punch insert cylinder partial height becomes short, mainly changes
It is dynamic to be fixed ring, a circle hanging platform is increased on original fixed ring second step face, forms 32 knots of hanging platform 33 and recessed circle
Structure, the upper surface of fixed ring 3 are made of hanging platform upper surface, recessed circle 32, fixed ring first step plane 31, cavity plate die joint 12 with
Fixed ring first step plane 31 connects, and punch insert fitting plane connects with hanging platform upper surface, and the outer diameter of hanging platform is equal to process area
The outer diameter of the internal diameter of rank, punch insert fitting plane 22 is smaller 0.1-0.3mm than 33 outer diameter of hanging platform, and the depth and width of recessed circle 32 are equal to
The height and width of ball cover flange are used for shaped flange side.Hanging platform upper surface is fixed ring and punch insert die joint, and recessed circle is
The die joint of fixed ring and ball cover flange, the height that punch insert reduces are equal to the height 33b of hanging platform（Hanging platform upper surface and recessed circle
The distance between）, that is, cylinder height H '=H-33b of punch insert after improving.
Hanging platform upper surface is concordant with fixed ring first step plane 31.Ensure the height of the height and flange of technique step
It is equal.The technique step 45 of ball cover matches synthesis type by punch insert and the hanging platform of fixed ring.Remaining not described part and prior art phase
Together.
The principle of the present invention is：When ball cover cylinder reaches certain height, lead to the melten gel flow velocity phase of spherical surface top position
It is slack-off to cylinder surrounding, and ball cover is caused to generate trapped gas phenomenon in molding end, when cannot be satisfied the optical property of product, i.e.,
Make product appearance apparently without apparent flaw, but practical optical imagery performance does not reach requirement.It at this time can be by the hanging platform in fixed ring
Height carry out drop surface treatment, for example decline 0.1, after the fixed ring hanging platform assembly of punch insert fitting plane and decline, ball cover is whole
Body will increase wall thickness, and wherein wall thickness will increase to 0.1 at the top of spherical surface.By drop face appropriate, product can reach set
Optical requirement.Such mode need not be handled the cavity plate 1 that optical manufacturing is completed with punch insert 2, only to wherein non-
Hanging platform height 33b this size in the fixed ring of optical texture is processed, and can reduce processing cost and time to greatest extent.
Claims (5)
1. a kind of band cylindrical optical ball cover, ball cover outer surface is by spherical outside surface（41a）With outer cylinder（41b）It is carried out in a manner of tangent
Transition, with the entire product external surfaces of composition, ball cover inner surface is by ball inner surface（42a）With column inner surface（42b）With tangent side
Formula carries out rounding off, which is characterized in that column inner surface（42b）End be machined with internal diameter be more than column inner surface technique step
（45）, with ball inner surface（42a）With column inner surface（42b）Form entire product inner surface, spherical surface and the cylinder portion of surfaces externally and internally
It is grouped as the optical surface of ball cover, flange（44）It is Non-optical surfaces including baseplane and inside and outside height face, is used for optics
The assembly of ball cover.
2. a kind of band cylindrical optical ball cover according to claim 1, which is characterized in that the height and flange of technique step
Height it is equal.
3. a kind of band cylindrical optical ball cover according to claim 1, which is characterized in that the internal diameter of technique step is than table in column
The big 0.1-0.3mm in face.
4. a kind of making a kind of mold with cylindrical optical ball cover as described in claim 1, by cavity plate（1）, punch insert（2）And
Fixed ring（3）Composition, which is characterized in that fixed ring（3）Upper surface by hanging platform upper surface, recessed circle（32）, fixed ring First
Rank plane（31）Composition, cavity plate die joint 12 connect with fixed ring first step plane 31, in punch insert fitting plane and hanging platform
Surface connects, and the outer diameter of hanging platform is equal to the internal diameter of technique step, punch insert fitting plane（22）Outer diameter compare hanging platform（33）Outer diameter
Small 0.1-0.3mm, recessed circle（32）Depth and width be equal to flange height and width.
5. a kind of mold with cylindrical optical ball cover according to claim 1, which is characterized in that hanging platform upper surface and fixation
Ring first step plane（31）Concordantly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030693.7A CN108312430A (en) | 2018-01-12 | 2018-01-12 | A kind of band cylindrical optical ball cover and its mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030693.7A CN108312430A (en) | 2018-01-12 | 2018-01-12 | A kind of band cylindrical optical ball cover and its mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108312430A true CN108312430A (en) | 2018-07-24 |
Family
ID=62894243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810030693.7A Pending CN108312430A (en) | 2018-01-12 | 2018-01-12 | A kind of band cylindrical optical ball cover and its mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108312430A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09225947A (en) * | 1996-02-26 | 1997-09-02 | Matsushita Electric Works Ltd | Manufacture of molding die |
| JPH10278077A (en) * | 1997-04-01 | 1998-10-20 | Ricoh Co Ltd | Injection molded form and molding method of the same |
| JP2004106236A (en) * | 2002-09-13 | 2004-04-08 | Toho Kogyo Kk | Mold for molding container with different height |
| JP2004291341A (en) * | 2003-03-26 | 2004-10-21 | Matsushita Electric Ind Co Ltd | Mold for optical element, method for molding optical element, and optical element |
| CN1866121A (en) * | 2006-06-07 | 2006-11-22 | 福州美智达光电有限公司 | High-precision optical spherical cover and mould, and making process thereof |
| WO2013094173A1 (en) * | 2011-12-22 | 2013-06-27 | パナソニック株式会社 | Objective lens, optical pickup, optical disc device, mold for resin forming, and method for manufacturing objective lens |
| CN207772303U (en) * | 2018-01-12 | 2018-08-28 | 福建富兰光学有限公司 | A kind of band cylindrical optical ball cover |
-
2018
- 2018-01-12 CN CN201810030693.7A patent/CN108312430A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09225947A (en) * | 1996-02-26 | 1997-09-02 | Matsushita Electric Works Ltd | Manufacture of molding die |
| JPH10278077A (en) * | 1997-04-01 | 1998-10-20 | Ricoh Co Ltd | Injection molded form and molding method of the same |
| JP2004106236A (en) * | 2002-09-13 | 2004-04-08 | Toho Kogyo Kk | Mold for molding container with different height |
| JP2004291341A (en) * | 2003-03-26 | 2004-10-21 | Matsushita Electric Ind Co Ltd | Mold for optical element, method for molding optical element, and optical element |
| CN1866121A (en) * | 2006-06-07 | 2006-11-22 | 福州美智达光电有限公司 | High-precision optical spherical cover and mould, and making process thereof |
| WO2013094173A1 (en) * | 2011-12-22 | 2013-06-27 | パナソニック株式会社 | Objective lens, optical pickup, optical disc device, mold for resin forming, and method for manufacturing objective lens |
| CN207772303U (en) * | 2018-01-12 | 2018-08-28 | 福建富兰光学有限公司 | A kind of band cylindrical optical ball cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Cangshan District of Fuzhou City, Fujian province 350018 to build a new town, Jinshan Road No. 618, juyuanzhou Industrial Park 25 Applicant after: Fujian Fulan optics Co., Ltd Address before: Cangshan District of Fuzhou City, Fujian province 350018 to build a new town, Jinshan Road No. 618, juyuanzhou Industrial Park 25 Applicant before: FUJIAN FRAN OPTICS Co.,Ltd. |
|
| CB02 | Change of applicant information |