CN103524021B - A kind of manufacture method of aspherical lens of glass accurate die pressing - Google Patents
A kind of manufacture method of aspherical lens of glass accurate die pressing Download PDFInfo
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- CN103524021B CN103524021B CN201310520477.8A CN201310520477A CN103524021B CN 103524021 B CN103524021 B CN 103524021B CN 201310520477 A CN201310520477 A CN 201310520477A CN 103524021 B CN103524021 B CN 103524021B
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- upper cores
- lower die
- inner core
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Abstract
The invention discloses a kind of aspherical mirror piece making method of glass accurate die pressing, comprise the steps: a: provide a kind of lubricating oil, glass material preform and accurate die pressing mould, described mould comprises upper cores, lower die, inner core and urceolus; B: urceolus is separated, upper cores rises, and separates with lower die; C: be coated with last layer lubricating oil at upper cores, lower die cylinder or inner core inwall; D: glass material preform is put into lower die; E: upper cores drops to top to glass material preform, urceolus assembling is closed; F: pyroprocessing is carried out to glass material preform and softens; G: upper cores adds drops and carries out precise compression molding to glass material preform, forms elementary aspherical lens; H: cooling process is carried out to elementary aspherical lens; I: urceolus is separated, upper cores rises, and the demoulding is taken out and obtained final aspherical lens.Manufacture method of the present invention effectively solves the bad problem of mold-slide, simple to operate, Be very effective, ensure that the stable and excellent of product.
Description
Technical field
The present invention designs a kind of manufacture method of optical element, particularly relates to a kind of manufacture method of aspherical lens.
Background technology
Traditional eyeglass adopts lapping mode processing, be not easy to produce high-precision aspherical lens, therefore glass mold pressing is the technology of the most applicable making aspheric optical lens at present, utilize glass moulding process, aspherical lens can be produced in a large number, in the glass precision moulded formation technique of routine, in order to meet the requirement of product, die design is very accurate, and the clearance requirement of its die and inner core is also very strict, about 1 micron ~ 2 microns, monolateral gap under high temperature; But accurate die pressing necessarily requires that glass at high temperature softens, so mold work environment must in high temperature environments, in view of more than, mould often causes product surface figure accuracy not up to standard because sliding to have some setbacks, and product appearance such as to be broken at the bad phenomenon.
Summary of the invention
The object of the present invention is to provide the problem that a kind of effective solution mold-slide is bad, the manufacture method of the aspherical lens of the stable and excellent glass accurate die pressing of simple to operate, Be very effective, guarantee product.
To achieve these goals, the present invention adopts following technical scheme:
A manufacture method for the aspherical lens of glass accurate die pressing, comprises the steps:
A: a kind of lubricating oil, glass material preform and accurate die pressing mould are provided, described mould comprises upper cores, lower die, inner core and urceolus;
B: under normal temperature, described urceolus is separated, described upper cores rises, and separates with described lower die;
C: be coated with last layer lubricating oil at described upper cores, described lower die cylinder or described inner core inwall;
D: described glass material preform is put into described lower die;
E: described upper cores drops to top to described glass material preform, described urceolus assembling is closed;
F: pyroprocessing is carried out to described glass material preform and softens;
G: described upper cores adds drops and carries out precise compression molding to described glass material preform, forms elementary aspherical lens;
H: cooling process is carried out to described elementary aspherical lens;
I: described urceolus is separated, described upper cores rises, and the demoulding is taken out and obtained final aspherical lens.
Further, described upper cores and described lower die gap separation are 6 ~ 8 microns.
Further, the temperature of described pyroprocessing is determined by the fusing point of described glass material preform, is 350 DEG C ~ 650 DEG C.
Further, the temperature of described cooling process is 60 DEG C ~ 550 DEG C.
Further, described lubricating oil is liquid high temperature resistant luboil.
Further, described upper and lower die is 1 micron ~ 2 microns with coordinating monolateral gap under described inner core high temperature.
Further, described upper cores adds moulding pressure when drops carries out precise compression molding, and being decided by the temperature of shaping product size and setting, is 0.1Mpa ~ 1.5Mpa.
Further, the clamping time that described upper cores adds when drops carries out precise compression molding is determined by shaping product size and material behavior, is 50 seconds ~ 250 seconds.
Further, the release film of plated surface one deck 0.3 micron ~ 1.0 microns of described upper cores and described lower die.
Compared with prior art, the manufacture method of the aspherical lens of glass accurate die pressing of the present invention is passed through in described upper cores, described lower die cylinder or described inner core inwall are coated with the liquid high temperature resistant luboil of last layer, thus on described, lower die and inner core tolerance clearance is very little and under high-temperature work environment, can ensure that described mould and described inner core slide relative smooth and easy, low and the outward appearance of the bad Product Precision caused of mold-slide described in mold pressing cooling and demoulding link Yin Gaowen is avoided to break, the problem that effective solution mold-slide is bad, simple to operate, Be very effective, practical, improve quality product, ensure that the stable and excellent of product.
Accompanying drawing explanation
Fig. 1 is the aspherical mirror piece making method schema of glass accurate die pressing of the present invention;
Fig. 2 is the structural representation of mould of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
A manufacture method for the aspherical lens of glass accurate die pressing, comprises the steps:
A: a kind of lubricating oil is provided, glass material preform 1 and accurate die pressing mould 2, described mould 2 comprises upper cores 21, lower die 22, inner core 23 and urceolus 24, the release film of plated surface one deck 0.3 micron ~ 1.0 microns of described upper cores 21 and described lower die 22, described upper cores 21 is corresponding with described lower die about 22, and be socketed in described inner core 23, described upper cores 21, lower die 22 with coordinate monolateral gap to be 1 micron ~ 2 microns under described inner core 23 high temperature, described inner core 23 is provided with inner core venting hole 25, described inner core venting hole 25 plays scavenging action when accurate die pressing, described inner core 23 outer wall is socketed with urceolus 24, described urceolus 24 is provided with urceolus venting hole 26, described urceolus venting hole 26 coordinates described inner core venting hole 25 jointly to play scavenging action, described lower die 22 and described inner core 23 keep stationary state aborning,
B: under normal temperature, described urceolus 24 is separated, described upper cores 21 rises, and separate with described lower die 22, gap separation is 6 ~ 8 microns;
C: be coated with last layer lubricating oil at described upper cores 21, lower die 22 cylinder or inner core 23 inwall, as shown in Figure 2, described lubricating oil is liquid high temperature resistant luboil in oiling position 27;
D: described glass material preform 1 is put into described lower die 22, described glass material preform 1 profile will keep basically identical with the die cavity of described lower die 22;
E: upper described die 21 drops to top to described glass material preform 1, and described urceolus 24 is assembled closed;
F: pyroprocessing is carried out to described glass material preform 1 and softens, the temperature of pyroprocessing is determined by the fusing point of described glass material preform 1, and the temperature of pyroprocessing is generally 350 DEG C ~ 650 DEG C;
G: described upper cores 21 adds drops and carries out precise compression molding to described glass material preform 1, form elementary aspherical lens 3, described upper cores 21 adds moulding pressure when drops carries out precise compression molding, decided by the temperature of shaping product size and setting, for 0.1Mpa ~ 1.5Mpa, the clamping time that described upper cores 21 adds when drops carries out precise compression molding is determined by shaping product size and material behavior, is generally 50 seconds ~ 250 seconds;
H: cooling process is carried out to described elementary aspherical lens 3, the temperature of cooling process is generally 60 DEG C ~ 550 DEG C;
I: described urceolus 24 is separated, described upper cores 21 rises, and described upper cores 21 is separated with described lower die 22, and the demoulding is taken out and obtained final aspherical lens 3.
The manufacture method of the aspherical lens of glass accurate die pressing of the present invention is passed through in described upper cores 21, lower die 22 cylinder or inner core 23 inwall are coated with the liquid high temperature resistant luboil of last layer, thus in described upper cores 21, lower die 22 is with inner core 23 tolerance clearance under very little and high-temperature work environment, can ensure that described mould 2 slides relative smooth and easy with described inner core 23, low and the outward appearance of the bad Product Precision caused of sliding of mould 2 described in mold pressing cooling and demoulding link Yin Gaowen is avoided to break, the problem that effective solution mold-slide is bad, simple to operate, Be very effective, practical, improve quality product, ensure that the stable and excellent of product.
More than in conjunction with most preferred embodiment, invention has been described, but the present invention is not limited to the embodiment of above announcement, and should contain various carry out according to essence of the present invention amendment, equivalent combinations.
Claims (9)
1. a manufacture method for the aspherical lens of glass accurate die pressing, is characterized in that, comprises the steps:
A: a kind of lubricating oil is provided, glass material preform and accurate die pressing mould, described mould comprises upper cores, lower die, inner core and urceolus, the release film of plated surface one deck 0.3 micron ~ 1.0 microns of described upper cores and described lower die, described upper cores is corresponding up and down with described lower die, and be socketed in described inner core, described upper cores, lower die is 1 micron ~ 2 microns with coordinating monolateral gap under described inner core high temperature, described inner core is provided with inner core venting hole, described inner core venting hole plays scavenging action when accurate die pressing, described inner tank theca is socketed with urceolus, described urceolus is provided with urceolus venting hole, described urceolus venting hole coordinates described inner core venting hole jointly to play scavenging action, described in described counterdie Renhe, inner core keeps stationary state aborning,
B: under normal temperature, described urceolus is separated, described upper cores rises, and separates with described lower die;
C: be coated with last layer lubricating oil at described upper cores, described lower die cylinder or described inner core inwall;
D: described glass material preform is put into lower die;
E: upper described die drops to top to described glass material preform, described urceolus assembling is closed;
F: pyroprocessing is carried out to described glass material preform and softens;
G: described upper cores adds drops and carries out precise compression molding to described glass material preform, forms elementary aspherical lens;
H: cooling process is carried out to described elementary aspherical lens;
I: described urceolus is separated, described upper cores rises, and the demoulding is taken out and obtained final aspherical lens.
2. the aspherical mirror piece making method of glass accurate die pressing as claimed in claim 1, is characterized in that: described upper cores and described lower die gap separation are 6 ~ 8 microns.
3. the aspherical mirror piece making method of glass accurate die pressing as claimed in claim 1, is characterized in that: the temperature of described pyroprocessing is determined by the fusing point of described glass material preform, is 350 DEG C ~ 650 DEG C.
4. the aspherical mirror piece making method of glass accurate die pressing as claimed in claim 1, is characterized in that: the temperature of described cooling process is 60 DEG C ~ 550 DEG C.
5. the aspherical mirror piece making method of glass accurate die pressing as claimed in claim 1, is characterized in that: described lubricating oil is liquid high temperature resistant luboil.
6. the aspherical mirror piece making method of glass accurate die pressing as claimed in claim 1, is characterized in that: described upper and lower die is 1 micron ~ 2 microns with coordinating monolateral gap under described inner core high temperature.
7. the aspherical mirror piece making method of glass accurate die pressing as claimed in claim 1, it is characterized in that: described upper cores adds moulding pressure when drops carries out precise compression molding, being decided by the temperature of shaping product size and setting, is 0.1Mpa ~ 1.5Mpa.
8. the aspherical mirror piece making method of glass accurate die pressing as claimed in claim 1, is characterized in that: the clamping time that described upper cores adds when drops carries out precise compression molding is determined by shaping product size and material behavior, is 50 seconds ~ 250 seconds.
9. the aspherical mirror piece making method of glass accurate die pressing as claimed in claim 1, is characterized in that: the release film of plated surface one deck 0.3 micron ~ 1.0 microns of described upper cores and described lower die.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310520477.8A CN103524021B (en) | 2013-10-28 | 2013-10-28 | A kind of manufacture method of aspherical lens of glass accurate die pressing |
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| CN201310520477.8A CN103524021B (en) | 2013-10-28 | 2013-10-28 | A kind of manufacture method of aspherical lens of glass accurate die pressing |
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| CN103524021A CN103524021A (en) | 2014-01-22 |
| CN103524021B true CN103524021B (en) | 2015-09-09 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105619786A (en) * | 2016-03-16 | 2016-06-01 | 浙江蓝拓非球面光学有限公司 | Die assembling device for lens barrel and aspheric-surface lens and profiling gluing method |
| CN107298524B (en) * | 2017-06-08 | 2021-06-11 | 深圳市天阳谷科技发展有限公司 | Preparation method of large-diameter aspheric lens |
| CN109250895B (en) * | 2018-09-25 | 2022-02-11 | 成都光明南方光学科技有限责任公司 | Method for forming and manufacturing optical glass aspheric lens and mold thereof |
| CN110668678A (en) * | 2019-11-29 | 2020-01-10 | 东莞市凯融光学科技有限公司 | Self-heating mould core for manufacturing glass non-spherical lens |
| CN111253052B (en) * | 2020-04-09 | 2023-10-31 | 宜宾钢猫科技有限公司 | Automatic glass lens hot press molding system and molding method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1590332A (en) * | 2003-09-04 | 2005-03-09 | Hoya株式会社 | Precision press-molding preform, process for the production thereof, optical element and process for the production of the optical element |
| CN1670245A (en) * | 2004-03-20 | 2005-09-21 | 鸿富锦精密工业（深圳）有限公司 | Die with superhard filming |
| CN1669965A (en) * | 2004-03-15 | 2005-09-21 | Hoya株式会社 | Optical glass, precision press-molding preform, optical element and processes for production of these |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4518917B2 (en) * | 2004-11-10 | 2010-08-04 | Ｈｏｙａ株式会社 | Manufacturing method of mold press molding apparatus |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1590332A (en) * | 2003-09-04 | 2005-03-09 | Hoya株式会社 | Precision press-molding preform, process for the production thereof, optical element and process for the production of the optical element |
| CN1669965A (en) * | 2004-03-15 | 2005-09-21 | Hoya株式会社 | Optical glass, precision press-molding preform, optical element and processes for production of these |
| CN1670245A (en) * | 2004-03-20 | 2005-09-21 | 鸿富锦精密工业（深圳）有限公司 | Die with superhard filming |
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