CN102672888A - Lens barrel forming die - Google Patents
Lens barrel forming die Download PDFInfo
- Publication number
- CN102672888A CN102672888A CN2011100563309A CN201110056330A CN102672888A CN 102672888 A CN102672888 A CN 102672888A CN 2011100563309 A CN2011100563309 A CN 2011100563309A CN 201110056330 A CN201110056330 A CN 201110056330A CN 102672888 A CN102672888 A CN 102672888A
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- boss
- lens barrel
- face
- mould
- barrel mould
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Abstract
The invention provides a lens barrel forming die. The lens barrel forming die is used for forming small lens barrels through injection moulding. The lens barrel forming die comprises a female die and a male die, wherein the female die is provided with a first boss; the first boss is provided with a first end face; the male die is provided with a second boss; the second boss is provided with a second end face opposite to the first end face; the female die and the male die are matched with each other to form a forming space for forming the lens barrel; the first boss is propped against the second boss to form a die core for forming a light through hole of the lens barrel; the first end face and the second end face are fit to form an annular surface; the annular surface is overlapped with the parting surface of the lens barrel forming die and surrounds the die core; and the radial size of the annular surface is more than 0 and less than or equal to 0.005 mm.
Description
Technical field
The present invention relates to a kind of lens barrel mould, relate in particular to a kind of lens barrel mould of avoiding lens barrel light hole edge to produce the small-sized lens barrel of moulding of dazzle because of printing opacity.
Background technology
Lens barrel adopts the method for ejection formation to carry out processing and forming by mould as a critical elements of camera lens module usually.For being applied to portable electronic devices; Like mobile phone, personal digital assistant (PersonalDigital Assistant; PDA) the small-sized lens barrel in; The male model, master mold and the dental lamina that cooperatively interact are set in the lens barrel mould usually come the overall structure of moulding lens barrel, and utilize moulding to go into the light hole that son comes the moulding lens barrel.
Thus, the parts that make whole lens barrel mould need assemble cooperation are more.The small-sized lens barrel less for size and required precision is higher, its dimensional accuracy very easily receive the direct influence of each component-assembled quality of fit in the lens barrel mould, need constantly debug whole lens barrel mould and cause in the process of injection molding.
In addition, in the position to male model master mold die joint burr appear for fear of the lens barrel of institute's moulding, generally need male model master mold die joint (being positioned at the light hole of lens barrel) locate the breaking face that designs (be male model and master mold relatively against the surface).But in the lens barrel of moulding, the axial width of the marginal portion of light hole is generally minimum thus.Thus, the camera lens that causes follow-up assembling completion is when glare tester, and the light hole edge of lens barrel is prone to influence the final image quality of camera lens because of printing opacity produces glare phenomenon.
Summary of the invention
In view of this, be necessary to provide a kind of be easy to realize, lens barrel mould that can effectively solve the problem that exists in the prior art.
A kind of lens barrel mould, it is used for the small-sized lens barrel of injection moulding, and said lens barrel mould comprises a master mold, and a male model.Said master mold has one first boss, and said first boss has one first end face.Said male model has one second boss, and said second boss has one and the said first end face second opposed end face.Said master mold and said male model complement each other to form the molding space of the said lens barrel of moulding; Said first boss and said second boss are each other against the core of the light hole that forms the said lens barrel of moulding; Said first end face and said second end face are fitted each other and are formed a ring surface; The die joint of said ring surface and said lens barrel mould coincides and around said core, and said ring surface size radially is greater than 0 and be less than or equal to 0.005mm.
With respect to prior art; Lens barrel mould of the present invention has following advantage: one of which; Said lens barrel mould directly utilizes the master mold and the male model that cooperatively interact to come the overall structure of moulding lens barrel, and utilizes the boss that cooperatively interacts in master mold and the male model structure to come the moulding light hole, thus; Make that lens barrel mould overall structure is simple; And need not to utilize in addition moulding to go into son, and reduced the mould assembled components, be convenient to reduce in the lens barrel mould each component-assembled quality of fit to the influence degree of moulding lens barrel.Its two, utilize in the lens barrel of said lens barrel mould moulding, the light hole edge scope of thin part is minimum, can reduce the thin part in light hole edge effectively and dazzle occur because of printing opacity makes camera lens, guarantees the image quality of corresponding camera lens.
Description of drawings
Fig. 1 is the decomposing schematic representation of the lens barrel mould that provides of one embodiment of the invention.
Fig. 2 is the assembling sketch map of lens barrel mould shown in Figure 1.
Fig. 3 is the enlarged diagram of area I II in the lens barrel mould shown in Figure 2.
Fig. 4 is area I II is corresponding in the lens barrel mould shown in Figure 2 male model and the binding face view vertically of master mold.
Fig. 5 be by lens barrel mould shown in Figure 2 the sketch map of injection molding lens barrel.
The main element symbol description
Accepting groove 15
Molding space 20
Lens barrel 30
Light hole 31
Accepting hole 33
The first order 113
The second level 114
The specific embodiment
To combine accompanying drawing and embodiment that the present technique scheme is done further explain below.
Please consult Fig. 1 and Fig. 2 in the lump, one embodiment of the invention provides a kind of lens barrel mould 10, and it is used for a kind of small-sized lens barrel 30 of injection moulding (seeing also Fig. 5).Said lens barrel mould 10 comprises a master mold 11, and a male model 12.
Said master mold 11 has one first boss 110, and said first boss 110 has one first end face 111.Said male model 12 has one second boss 120, and said second boss 120 has one second end face 121.Said first boss 110 extends towards said male model 12, and said second boss 120 extends towards said master mold 11.Said second end face 121 is relative with said first end face 111.
In the present embodiment, said first boss 110 is the frustum of a cone, and its radius reduces towards the end near said second boss 120 gradually.Said second boss 120 is the frustum of a cone, and its radius reduces towards the end near said first boss 110 gradually.
Further, said first boss 110 comprises a first order 113 of different-diameter, and coaxial with the said first order 113 and a be connected second level 114.The maximum gauge of the said second level 114 equals the minimum diameter of the said first order 113.
Preferably, said first end face 111 is perpendicular to the central shaft of said first boss 110, and said second end face 121 is perpendicular to the central shaft of said second boss 120, and the spigot shaft coaxle of the central shaft of said first boss 110 and said second boss 120.
In the present embodiment; Said first end face 111 is a circular flat with said second end face 121; Said first end face 111 coincides with the central shaft of said second end face 121; And all with the spigot shaft coaxle of said first boss 110 and said second boss 120, promptly said first boss 110 and said second boss 120 are the normal cone platform.
Further, said master mold 11 has an accepting groove 15, and said male model 12 has a main part 17.Said main part 17 is contained in the said accepting groove 15, and said main part 17 forms said molding space with said accepting groove 15.In the present embodiment, said accepting groove 15 is a circular groove, and said first boss 110 is formed at the middle section of the bottom of said accepting groove 15, and said first boss 110 is coaxial with said accepting groove 15.Said main part 17 is a cylindrical structure.Said main part 17 comprises first section 171 of different-diameter, and one second section 172, said second section 172 with said first section 171 coaxial and be connected.Said first section 171 diameter is less than said second section 172 diameter.Said second boss 120 is formed at said first section 171 end, and said second boss 120 is coaxial with said main part 17.
Please consult Fig. 2 to Fig. 4 in the lump, said master mold 11 cooperatively interacts with said male model 12, forms the molding space 20 (being die cavity) of the said lens barrel 30 of moulding.Said first boss 110 and said second boss, 120 mutual cores against the light hole 31 (seeing also Fig. 5) that forms the said lens barrel 30 of moulding.Said first end face 111 is fitted each other with said second end face 121 and is formed a ring surface 129.The die joint of said ring surface 129 and said lens barrel mould 10 coincides and around said core, and said ring surface 129 size radially is greater than 0 and be less than or equal to 0.005mm.
Please consult Fig. 5 in the lump, be the lens barrel 30 that is obtained after said lens barrel mould 10 injection mouldings.Present embodiment is that example describes with the little 0.005mm of radius (being that said ring surface 129 size radially equals 0.005mm) of said second end face 121 of the radius ratio of said first end face 111.
The light hole 31 of said lens barrel 30 is by said first boss 110 and 120 moulding of said second boss.The accepting hole 33 of the said lens barrel 30 of main part 17 moulding of said male model 12.When the camera lens that 30 assemblings form to said lens barrel carries out glare tester; Because the difference of the radius of the radius of said first end face and said second end face is greater than 0 and be less than or equal to 0.005mm; Be in the said lens barrel 30; The axial range of the marginal portion of said light hole 31 is minimum, thus, can reduce the thin marginal portion of said light hole 31 effectively and dazzle occur because of printing opacity makes camera lens.
It is understandable that; The ring surface 129 that is less than or equal to 0.005mm for radial dimension; Along with the radial dimension more little (promptly constantly being tending towards 0) of ring surface 129, the effect of improving that light leakage phenomenon is taken place by 30 pairs of light hole 31 marginal portions of the lens barrel of 10 moulding of lens barrel mould will be more obvious.
With respect to prior art; Lens barrel mould of the present invention has following advantage: one of which; Said lens barrel mould directly utilizes the master mold and the male model that cooperatively interact to come the overall structure of moulding lens barrel, and utilizes the boss that cooperatively interacts in master mold and the male model structure to come the moulding light hole, thus; Make that lens barrel mould overall structure is simple; And need not to utilize in addition moulding to go into son, and reduced the mould assembled components, be convenient to reduce in the lens barrel mould each component-assembled quality of fit to the influence degree of moulding lens barrel.Its two, utilize in the lens barrel of said lens barrel mould moulding, the light hole edge scope of thin part is minimum, can reduce the thin part in light hole edge effectively and dazzle occur because of printing opacity makes camera lens, guarantees the image quality of corresponding camera lens.
In addition, those skilled in the art can also do other variation in spirit of the present invention, and certainly, these all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.
Claims (10)
1. lens barrel mould, it is used for the small-sized lens barrel of injection moulding, and said lens barrel mould comprises:
A master mold, said master mold have one first boss, and said first boss has one first end face; And a male model, said male model has one second boss, and said second boss has one and the said first end face second opposed end face;
It is characterized in that:
Said master mold and said male model complement each other to form the molding space of the said lens barrel of moulding; Said first boss and said second boss are each other against the core of the light hole that forms the said lens barrel of moulding; Said first end face and said second end face are fitted each other and are formed a ring surface; The die joint of said ring surface and said lens barrel mould coincides and around said core, and said ring surface size radially is greater than 0 and be less than or equal to 0.005mm.
2. lens barrel mould as claimed in claim 1 is characterized in that, said first boss is a circular cone structure, and its radius reduces towards the end near said second boss gradually.
3. lens barrel mould as claimed in claim 2; It is characterized in that; Said first boss comprises a first order of different-diameter, and coaxial with the said first order and a be connected second level, and said partial maximum gauge equals the minimum diameter of the said first order.
4. lens barrel mould as claimed in claim 2 is characterized in that, said second boss is a circular cone structure, and its radius reduces towards the end near said first boss gradually.
5. lens barrel mould as claimed in claim 1; It is characterized in that; Said master mold further has an accepting groove, and said male model further has a main part, and said main part is contained in the said accepting groove and with said accepting groove and forms said molding space.
6. lens barrel mould as claimed in claim 5 is characterized in that, said accepting groove is a circular groove, and said first boss shape is formed in the middle section of said accepting groove bottom, and said first boss is coaxial with said accepting groove; Said main part is a cylindrical structure, and said second boss shape is formed in an end of said main part, and said second boss is coaxial with said main part.
7. lens barrel mould as claimed in claim 5 is characterized in that, said main part comprises first section of different-diameter, and one with said first section coaxial and second section of being connected, said first section diameter is less than said second section diameter.
8. lens barrel mould as claimed in claim 1 is characterized in that, the spigot shaft coaxle of the central shaft of said first boss and said second boss.
9. lens barrel mould as claimed in claim 1 is characterized in that, said first end face is perpendicular to the central shaft of said first boss, and said second end face is perpendicular to the central shaft of said second boss.
10. lens barrel mould as claimed in claim 1 is characterized in that, the difference of the radius of the radius of said first end face and said second end face is greater than 0 and be less than or equal to 0.005mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100563309A CN102672888A (en) | 2011-03-09 | 2011-03-09 | Lens barrel forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100563309A CN102672888A (en) | 2011-03-09 | 2011-03-09 | Lens barrel forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102672888A true CN102672888A (en) | 2012-09-19 |
Family
ID=46805765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100563309A Pending CN102672888A (en) | 2011-03-09 | 2011-03-09 | Lens barrel forming die |
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| Country | Link |
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| CN (1) | CN102672888A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406736A (en) * | 2013-08-15 | 2013-11-27 | 苏州大学 | Technology for machining lens cone plastic mould precise assembly of digital camera |
| CN104816434A (en) * | 2015-04-14 | 2015-08-05 | 中山联合光电科技股份有限公司 | Mold structure for manufacturing precise optical lens cone |
| WO2022051997A1 (en) * | 2020-09-10 | 2022-03-17 | 欧菲光集团股份有限公司 | Lens barrel, lens, and lens barrel manufacturing mold |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62127215A (en) * | 1985-11-27 | 1987-06-09 | Canon Inc | Manufacture of lens tube unit |
| US20080286405A1 (en) * | 2007-05-16 | 2008-11-20 | Hon Hai Precision Industry Co., Ltd. | Apparatus for injection molding |
| CN101870156A (en) * | 2009-04-27 | 2010-10-27 | 鸿富锦精密工业（深圳）有限公司 | Injection molding mould |
-
2011
- 2011-03-09 CN CN2011100563309A patent/CN102672888A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62127215A (en) * | 1985-11-27 | 1987-06-09 | Canon Inc | Manufacture of lens tube unit |
| US20080286405A1 (en) * | 2007-05-16 | 2008-11-20 | Hon Hai Precision Industry Co., Ltd. | Apparatus for injection molding |
| CN101870156A (en) * | 2009-04-27 | 2010-10-27 | 鸿富锦精密工业（深圳）有限公司 | Injection molding mould |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406736A (en) * | 2013-08-15 | 2013-11-27 | 苏州大学 | Technology for machining lens cone plastic mould precise assembly of digital camera |
| CN103406736B (en) * | 2013-08-15 | 2016-07-06 | 苏州大学 | Lens tube of digital camera plastic mould precise molectron processing technique |
| CN104816434A (en) * | 2015-04-14 | 2015-08-05 | 中山联合光电科技股份有限公司 | Mold structure for manufacturing precise optical lens cone |
| WO2022051997A1 (en) * | 2020-09-10 | 2022-03-17 | 欧菲光集团股份有限公司 | Lens barrel, lens, and lens barrel manufacturing mold |
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Application publication date: 20120919 |