CN102688845B - Bending and curing process for optical lens - Google Patents
Bending and curing process for optical lens Download PDFInfo
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- CN102688845B CN102688845B CN201210169916.0A CN201210169916A CN102688845B CN 102688845 B CN102688845 B CN 102688845B CN 201210169916 A CN201210169916 A CN 201210169916A CN 102688845 B CN102688845 B CN 102688845B
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- eyeglass
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- solidifying
- conveyer belt
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Abstract
The invention discloses a bending and curing process for an optical lens. The bending and curing process comprises the following steps: holding a lens of which the core is fixed on a black rubber plate and arranging the lens on a conveyer belt; conveying the lens into a solidifying device through the conveyer belt for solidification through irradiation of ultraviolet rays, the irradiation strength of the ultraviolet rays is 50 plus or minus 5 mw/cm<2>, and the irradiation temperature ranges from 20 to 30 DEG C; placing the lens which is irradiated for 5 to 10 seconds, then conveying the lens into the solidifying device for solidification through irradiation of ultraviolet rays, and repeating such operation for 2 to 4 times; and cooling the lens. According to the invention, high-wave length ultraviolet rays and low temperature solidification are adopted, and tinfoil paper is additionally pasted on the inner side of the solidifying device so as to strengthen reflection of the ultraviolet rays; the optical lens is bended and cured dynamically through a conveyer belt pipeline, is cooled in an air-cooled manner during the conveying process after being irradiated for one time through the ultraviolet rays, and is irradiated for 3 to 5 times circularly to be solidified, so that the solidifying time is shortened effectively, and the production efficiency is improved. The intensity of illumination can be adjusted as per the lens, and the conveyer belt has a flexible and changeful speed so as to meet different requirements.
Description
[technical field]
The present invention relates to a kind of gluing and solidifying technique, relate in particular to a kind of gluing and solidifying technique of optical mirror slip.
[background technology]
As everyone knows, ultraviolet ray (UV light) is successfully generalized to business and is applied three more than ten years.Each adhesive manufacturer, for UV photocuring characteristic, develops for serial UV products such as bonding, sealing, printings, and is widely used in the various fields such as communication, electronics, optics, printing.These products under UV light (certain wavelength and certain luminous intensity) irradiates, can solidify or harden (polymerization), and and traditional product--UV photocuring is more accelerated efficiently, energy-conserving and environment-protective.
In optics industry, engage at present eyeglass and be generally two to three pieces of eyeglasses and engage, but in most cases, engaging eyeglass is all generally that two pieces of eyeglasses engage.Eyeglass carries out UV glue curing after engaging.Engage after the high intensity ultraviolet linear light of eyeglass in uv equipment, produce living radical or ion radical, thereby initiated polymerization, crosslinked and graft reaction, make resin (UV coating, ink, adhesive etc.) (not etc.) within the several seconds, turned to solid-state by liquid rotating.
The joint curing technology that now in optics enterprise, most corporate bosses will adopt is " this sclerosis ", the technical scheme of " this sclerosis " adopts extraordinary UV light source models such as () FL40S.BL of Toshiba and Philip brand, be fixed in sclerosis cabinet, switch on power, eyeglass is reached to irradiation in 4 hours, complete glue curing.Weak (the 0.6-1.0mw/cm of this mode uitraviolet intensity
2), in the unit interval, glue absorption energy is little, causes the glue curing time long, needs within 4 hours, solidify; In irradiation process, illumination cannot be adjusted flexibly, make curing mode stylize, without flexibility, objectively limited the irradiation time of eyeglass.Such curing mode causes and waits for waste the production of eyeglass, when eyeglass occurs that quality is bad, experimental result is too very long, cannot be corresponding in time, these factors make eyeglass gluing and solidifying become the bottleneck operation of machining eyeglass, have seriously hindered the lifting of production efficiency and the development of enterprise.
[summary of the invention]
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of hardening time short, the gluing and solidifying technique of the optical mirror slip of effectively enhancing productivity.
The present invention is for solving the problems of the technologies described above, by the following technical solutions:
A gluing and solidifying technique, it is characterized in that comprising the following steps:
A, by completing the eyeglass of determining core, be contained on black offset plate and be arranged in again on conveyer belt;
B, with conveyer belt, eyeglass is conveyed into and in curing apparatus, carries out ultraviolet ray and irradiate and solidify, ultraviolet irradiation intensity is 50 ± 5mw/cm
2, irradiation temperature is 20-50 ℃;
C, the eyeglass will finish for the first time in step b irradiating are placed 5-10 second, then are conveyed in curing apparatus and carry out ultraviolet ray irradiation, repeat 2-4 time;
D, cooling eyeglass.
The gluing and solidifying technique of a kind of optical mirror slip as above, is characterized in that being equipped with between described black offset plate and eyeglass the black optics damping cloth of 0.8mm.
The gluing and solidifying technique of a kind of optical mirror slip as above, the eyeglass described in it is characterized in that is placed upward according to the little eyeglass of 80 numerical value of λ in degree of staining.
The gluing and solidifying technique of a kind of optical mirror slip as above, the transfer rate that it is characterized in that described conveyer belt is 210 ± 5n/min, the time dimension that single has transmitted ultraviolet ray irradiation is held in 60-80 in second.
The gluing and solidifying technique of a kind of optical mirror slip as above, is characterized in that described ultraviolet wavelength is 365nm.
The gluing and solidifying technique of a kind of optical mirror slip as above, is characterized in that putting up the masking foil that increases ultraviolet reflection inside described curing apparatus.
The gluing and solidifying technique of a kind of optical mirror slip as above, is characterized in that described eyeglass carries out ultraviolet ray and irradiates while solidifying in curing apparatus, and each ultraviolet energy irradiating is greater than 2000mj/cm
2, described eyeglass, in gluing and solidifying process, connects irradiated ultraviolet energy and is greater than 6000mj/cm
2.
The gluing and solidifying technique of a kind of optical mirror slip as above, is characterized in that described curing apparatus is provided with the fan that keeps low-temperature working environment in curing apparatus.
The present invention compared with prior art, has following advantage:
The present invention adopts high length ultraviolet line and low-temperature setting and in curing apparatus inner side, sticks on masking foil and strengthen ultraviolet reflection, adopt conveyor line dynamically optical lens bonding to be solidified, after ultraviolet ray is irradiated once in transport process by air-cooled cooling, circulation is irradiated and can be completed curing 3-5 time, effectively reduce hardening time, improved production efficiency.
The present invention can be according to eyeglass capable of regulating illumination intensity, and line speed is flexible and changeable, adapts to different demands.
[accompanying drawing explanation]
Fig. 1 is process structure schematic diagram of the present invention;
Fig. 2 is that eyeglass is placed schematic diagram.
[specific embodiment]
Below in conjunction with accompanying drawing, describe the present invention:
As shown in Figure 1-2, a kind of gluing and solidifying technique of optical mirror slip, comprises the following steps:
A, by completing the eyeglass 1 of determining core, be contained on black offset plate 10 and be arranged in again on conveyer belt 2;
B, with conveyer belt 2, eyeglass 1 is conveyed into and in curing apparatus 3, carries out ultraviolet ray and irradiate and solidify, ultraviolet irradiation intensity is 50 ± 5mw/cm
2, irradiation temperature is 20-50 ℃;
C, the eyeglass that finishes for the first time in step b to irradiate 1 is placed to 5-10 second, then be conveyed into curing apparatus 3 and irradiate, repeat 2-4 time;
D, cooling eyeglass.
In step a, while arranging eyeglass 1, between black offset plate 10 and eyeglass 1, be equipped with the black optics damping cloth 4 of 0.8mm, prevent that lens surface from being scraped scar by hard thing, will place according to the little eyeglass of 80 numerical value of λ in degree of staining when eyeglass 1 is placed upward.Optical glass shortwave transmitted spectrum characteristic represents with degree of staining λ 80 or λ 5, thickness of sample 10mm ± 0.1mm, λ 80 refers to wavelength corresponding when glass transmittance reaches 80%, and λ 5 refers to wavelength corresponding when glass transmittance reaches 5%, and take 10nm as unit representation.The excursion of degree of staining is generally in ± 10nm.
In solidification process, the transfer rate of conveyer belt 2 is 210 ± 5n/min, and single has transmitted the time dimension that ultraviolet ray irradiates and has been held in 60-80 in second, and the cure cycle of common eyeglass is 3-5 minute, solidifies through three times, has greatly shortened hardening time.Because glass and rete have certain absorption to ultraviolet light, different glass is also different to ultraviolet absorbability, the absorptivity of glass increases along with the increase of thickness, so technique of the present invention will take into full account these factors while setting in the time, eyeglass large for center thickness or that edge thickness is large will increase irradiation time, prevent from gluing together the curing firm time of UV not enough, and the phenomenon of coming unglued.
Mercury lamp 5 is housed in curing apparatus 3, can sends the ultraviolet ray that peak wavelength is 365nm, dry for solidifying.Eyeglass 1 is conveyed into while carrying out gluing and solidifying in curing apparatus 3 through conveyer belt 2, and each ultraviolet energy irradiating is greater than 2000 millijoule/square centimeter (mj/cm
2), eyeglass 1, in gluing and solidifying process, connects irradiated ultraviolet energy and is greater than 6000mj/cm
2, like this to guarantee that between eyeglass, glue curing completes, stop glue because of illumination energy shortage, form gel, when gel refers to eyeglass gummed, glue does not fully solidify and causes, and still maintains liquid phenomenon.Ultraviolet energy (mj/cm
2)=uitraviolet intensity (mw/cm
2) * irradiation time (s).
The service life of general mercury lamp is generally at 800-3000 hour.Lamp in use, can produce a large amount of infrared ray (IR) radiation when producing UV, for temperature, affects little workpiece, this radiant heat is useful, it can accelerate the reaction speed of photocuring, and especially, for the sizing material of UV+ anaerobism mixed type, effect is more obvious.Moreover be ultraviolet generation, conventional ultraviolet mercury lamp has low pressure mercury lamp, medium pressure mercury lamp, high-pressure sodium lamp, xenon lamp, metal halide lamp and up-to-the-minute Non-polarized lamp.In the present invention, take and use medium pressure mercury lamp as main, it is relatively cheap because of medium pressure mercury lamp, is easy to installation and maintenance, and at the intense radiation peak of this 340-380nm scope length of grade, just in time drops on the absorption spectra of many light initiation systems.Therefore the application of medium pressure mercury lamp is also comparatively extensive.And carry out the curing best ultraviolet wavelength of ultraviolet ray irradiation in the present invention, be 365nm.
The present invention also can suitably adjust UV light intensity according to lens structure, to reach the light illumination requirement needing.UV light intensity can regulate by adjusting the height of device interior ultraviolet lamp tube, and the height of ultraviolet lamp tube is turned down, and UV light intensity promotes, and the height of quartz burner is heightened, and UV light intensity reduces.
The masking foil that increases ultraviolet reflection is puted up in described curing apparatus 3 inner sides, masking foil can carry out diffuse reflection and gets back to device interior being transmitted into the ultraviolet ray at edge curing apparatus 3 is interior, reduce ultraviolet energy waste, make the power density in unit are reach the strongest, to promote glue curing efficiency.
The gluing and solidifying of optical mirror slip is that cement is thoroughly hardened, and reaches mechanical strength maximum.And in UV solidifies, uitraviolet intensity is larger, eyeglass is thinner just more easily produces facial disfigurement, prevent that eyeglass is subject to excessive internal stress and produces deformation.
In solidification process of the present invention, be dynamic mode, within velocity interval, can freely regulate the speed; Curing apparatus 3 is provided with fan 6, in 6 pairs of curing apparatus 3 of this fan, carries out air blast cooling, to guarantee that curing apparatus 3 can keep the working environment of low temperature; Eyeglass 1 is positioned over the centre position of conveyer belt 2, and conveyer belt 2 at the uniform velocity moves ahead, and the speed of service of adjustable conveyer belt 2 also can, by regulating the height of mercury lamp 5 to regulate exposure intensity, have very strong process flexibility.
Conveyer belt 2 can be circulating transmission, can be also that orthoscopic transmits, then transmit for the second time irradiation ultraviolet radiation by artificially collecting.
Claims (4)
1. a gluing and solidifying technique for optical mirror slip, is characterized in that comprising the following steps:
A, by completing the eyeglass of determining core, be contained on black offset plate and be arranged in again on conveyer belt;
B, with conveyer belt, eyeglass is conveyed into and in curing apparatus, carries out ultraviolet ray and irradiate and solidify, ultraviolet irradiation intensity is 50 ± 5mW/cm
2, irradiation temperature is 20-50 ℃;
C, the eyeglass will finish for the first time in step b irradiating are placed 5-10 second, then are conveyed in curing apparatus and carry out ultraviolet ray irradiation, repeat 2-4 time;
D, cooling eyeglass;
The transfer rate of described conveyer belt is 210 ± 5n/min, and the time dimension that single has transmitted ultraviolet ray irradiation is held in 60-80 in second;
Described ultraviolet wavelength is 365nm;
The masking foil that increases ultraviolet reflection is puted up in described curing apparatus inner side;
Described eyeglass carries out ultraviolet ray and irradiates while solidifying in curing apparatus, and each ultraviolet energy irradiating is greater than 2000mJ/cm
2, described eyeglass, in gluing and solidifying process, connects irradiated ultraviolet energy and is greater than 6000mJ/cm
2.
2. the gluing and solidifying technique of a kind of optical mirror slip according to claim 1, is characterized in that being equipped with between described black offset plate and eyeglass the black optics damping cloth of 0.8mm.
3. the gluing and solidifying technique of a kind of optical mirror slip according to claim 1, is characterized in that described eyeglass places according to the little eyeglass of 80 numerical value of λ in degree of staining upward.
4. the gluing and solidifying technique of a kind of optical mirror slip according to claim 1, is characterized in that described curing apparatus is provided with the fan that keeps low-temperature working environment in curing apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210169916.0A CN102688845B (en) | 2012-05-28 | 2012-05-28 | Bending and curing process for optical lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210169916.0A CN102688845B (en) | 2012-05-28 | 2012-05-28 | Bending and curing process for optical lens |
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| CN102688845A CN102688845A (en) | 2012-09-26 |
| CN102688845B true CN102688845B (en) | 2014-01-15 |
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| CN201210169916.0A Active CN102688845B (en) | 2012-05-28 | 2012-05-28 | Bending and curing process for optical lens |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI473141B (en) * | 2012-12-13 | 2015-02-11 | Eternal Materials Co Ltd | A radiation curing apparatus |
| CN103434265B (en) * | 2013-09-06 | 2016-06-22 | 常德金鹏印务有限公司 | A kind of screen process press and drying device thereof |
| CN104101916A (en) * | 2014-07-28 | 2014-10-15 | 江苏双仪光学器材有限公司 | Two stage technology for hardening and combining lenses |
| CN104849828A (en) * | 2015-03-19 | 2015-08-19 | 姚小兵 | Ultraviolet ray irradiation light box used for optical lens cementing |
| CN106166701A (en) * | 2016-07-22 | 2016-11-30 | 成都贝瑞光电科技股份有限公司 | Dish process on a kind of ultraviolet excess thin slice |
| CN111061025A (en) * | 2019-12-18 | 2020-04-24 | 江西宏欣光学科技有限公司 | Gluing and curing process of optical lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6022498A (en) * | 1996-04-19 | 2000-02-08 | Q2100, Inc. | Methods for eyeglass lens curing using ultraviolet light |
| US5855820A (en) * | 1997-11-13 | 1999-01-05 | E. I. Du Pont De Nemours And Company | Water based thick film conductive compositions |
| DE102008054882A1 (en) * | 2008-01-08 | 2009-07-16 | Carl Zeiss Smt Ag | Repair process for optical elements with coating and corresponding optical elements |
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