CN113231274A - Spraying process of lens film - Google Patents
Spraying process of lens film Download PDFInfo
- Publication number
- CN113231274A CN113231274A CN202110624186.8A CN202110624186A CN113231274A CN 113231274 A CN113231274 A CN 113231274A CN 202110624186 A CN202110624186 A CN 202110624186A CN 113231274 A CN113231274 A CN 113231274A
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- Prior art keywords
- lens
- fixture
- circular positioning
- rotary
- edge
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
- B05D1/005—Spin coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/14—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
- B05D3/141—Plasma treatment
- B05D3/142—Pretreatment
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Coating Apparatus (AREA)
Abstract
The invention discloses a spraying process of a lens film, which comprises a rotary fixture and a spray head which is over against the rotary fixture, wherein the rotary fixture comprises a rotating shaft and a rotary platform, the rotating platform is fixed on the rotating shaft, the rotary platform is provided with a clamping manipulator for clamping a lens fixture, a plurality of circular positioning holes with the same size are uniformly distributed on the lens fixture, the circular positioning holes are matched with the lens in size, the aperture edge of each circular positioning hole is inwards recessed and provided with an annular step, the height of each annular step is the same as the thickness of the edge of the lens, the lens can be fixed in the circular positioning hole, the aperture edge of each circular positioning hole is provided with a slope, and the edge of the slope is tightly attached to the edge of the lens. The invention adopts the lens clamp, can realize the spraying and coating of a plurality of lenses at the same time, and has high processing efficiency; the process of combining spray coating and spin coating is adopted, so that the ink on the surface of the lens is uniformly spread, and a compact film layer is uniformly formed on the surface of the lens.
Description
Technical Field
The invention relates to the field of lens spraying, in particular to a spraying process of a lens film.
Background
The existing spraying process of the lens film adopts a spin coating process, a lens is placed above a silica gel suction nozzle and is fixed by vacuum adsorption, and when the lens rotates at a high speed of 4000 rpm-6000 rpm, ink drops from the nozzle. However, the existing spraying process for the lens film can only process one lens per time, and when the diameter of the lens is less than 2mm, ink leakage is easy to occur during coating, which affects appearance and spectrum.
Disclosure of Invention
In order to solve the technical problem, the invention designs a spraying process of a lens film.
The invention adopts the following technical scheme:
a spraying process of a lens film comprises a rotary fixture and a spray head which is right opposite to the rotary fixture, wherein the rotary fixture comprises a rotating shaft and a rotary platform, the rotary platform is fixed on the rotating shaft, the rotary platform is provided with a clamping mechanical arm for clamping a lens fixture, a plurality of circular positioning holes with the same size are uniformly distributed on the lens fixture, the circular positioning holes are matched with the lens in size, an annular step is inwards recessed at the aperture edge of each circular positioning hole, the height of the annular step is the same as the thickness of the edge of the lens, the lens can be fixed in the circular positioning hole, a slope is designed at the aperture edge of each circular positioning hole, and the edge of the slope is;
the process comprises the following steps: firstly, carrying out plasma cleaning on a lens to be processed, placing a rotary fixture in a closed cavity, respectively fixing the cleaned lens to be processed in a circular positioning hole of the lens fixture, and clamping the lens fixture by a clamping manipulator of the rotary fixture;
secondly, after the lens clamp is fixed, firstly rotating the lens clamp at a low speed of 100-500 rpm, uniformly spraying atomized ink by the spray head while rotating, lifting the rotation speed of the lens clamp to 6000rpm for high-speed rotation by acceleration of 1900-2200 rad/s after the ink is uniformly atomized and distributed on the surface of the whole plate lens, and maintaining the rotation speed for 10s to finish spraying;
thirdly, after the spraying is finished, taking out the lens for plasma cleaning;
and fourthly, baking by adopting a dust-free oven after cleaning to finish the whole process.
The acceleration is fast, in order to throw away printing ink fast, forms a compact even rete on the lens surface, because printing ink volatilization is fast, can cause the membrane thickness to scatter the poor greatly when the acceleration is slow, and the outward appearance colour difference grow. The plasma cleaning aims before coating are to improve the cleanliness of the lens surface, and change the surface tension of the lens to increase the surface tension of the lens, reduce the liquid-solid interfacial tension, enhance the surface activity of the lens, reduce the contact angle of ink on the lens surface, make the ink spread on the lens surface more easily and have good uniformity, and avoid the phenomenon that the ink is not coated or lost. The plasma cleaning can clean impurities in the ink layer after the lens is coated, the firmness between the ink and the substrate is improved, the lens is in a dry state after the plasma cleaning, and the lens can be sent to the next procedure without being dried.
Preferably, in the first step, the humidity in the closed cavity is controlled to be 60 +/-20%, and the temperature in the closed cavity is controlled to be 15 +/-3 ℃.
Preferably, the PLASMA cleaning in step three is performed by a PLASMA cleaning machine.
Preferably, the baking condition in the fourth step is 90 ℃ for 1.5 hours.
Preferably, the PLASMA cleaning parameters of the PLASMA cleaning machine are 400W of power, 240s of cleaning time, 1cfm of air flow, 200cfm of air flow and 10Torr of vacuum degree.
Preferably, the front end of the spray head is provided with a filter element of 0.5-1.0 um. Silicon particles caused by agglomeration due to solvent volatilization in the ink liquid can be effectively filtered.
Preferably, the spray head is a pneumatic spray head. The existing common spraying adopts two fluids and a megasonic nozzle, the two fluids depend on nitrogen, the ink is scattered at a nozzle, the volatilization of the ink is accelerated while the ink is scattered, the nitrogen impact is too strong, the ink is quickly volatilized to form a film after impacting a lens, a compact film layer cannot be formed on the surface of the lens, the drop point of the ink which is scattered by the megasonic nozzle is too thin, the assistance of the nitrogen is also needed, in the spraying process, the ink floats in the air, the ink amount distribution on the lens is poor, and the problem of high volatilization speed can also exist when the ink drop is too thin. The air pressure nozzle is not easily affected by air flow, so that the ink volatilization speed is high, and the phenomenon that the ink is agglomerated in the process from the nozzle to the lens to form a large number of particles and cause poor appearance is avoided.
The invention has the beneficial effects that: (1) the lens fixture is adopted, so that the spraying and coating of a plurality of lenses can be realized at the same time, and the processing efficiency is high; (2) and the process of combining spraying and spin coating is adopted, so that the ink on the surface of the lens is uniformly spread, and a compact film layer is uniformly formed on the surface of the lens.
Drawings
FIG. 1 is a schematic view of a rotary jig according to the present invention;
FIG. 2 is a schematic view of a clamp according to the present invention;
FIG. 3 is a schematic view of a circular alignment hole of the present invention;
in the figure: 1. the device comprises a rotating shaft, 2, a rotating platform, 3, a clamping manipulator, 4, a lens clamp, 5, a circular positioning hole, 6 and an annular step.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example (b): as shown in the attached drawings 1-3, a spraying process of a lens film comprises a rotary clamp and a spray head which is opposite to the rotary clamp, wherein the rotary clamp comprises a rotating shaft 1 and a rotating platform 2, the rotating platform is fixed on the rotating shaft, the rotating platform is provided with a clamping manipulator 3 for clamping a lens clamp 4, a plurality of circular positioning holes 5 with the same size are uniformly distributed on the lens clamp, the circular positioning holes are matched with the lens in size, the aperture edge of each circular positioning hole is inwards sunken and provided with an annular step 6, the height of each annular step is the same as the thickness of the edge of the lens, the lens can be fixed in the circular positioning hole, the aperture edge of each circular positioning hole is provided with a slope, and the edge of the slope is tightly attached to the edge of the lens;
the process comprises the following steps: firstly, carrying out plasma cleaning on a lens to be processed, placing a rotary fixture in a closed cavity, respectively fixing the cleaned lens to be processed in a circular positioning hole of the lens fixture, and clamping the lens fixture by a clamping manipulator of the rotary fixture;
secondly, after fixing the lens clamp, firstly rotating the lens clamp at a low speed of 100-500 rpm for 5s, uniformly spraying atomized ink by the spray head while rotating, after the ink is uniformly atomized and distributed on the surface of the whole plate lens, lifting the rotating speed of the lens clamp to 6000rpm at an acceleration of 1900-2200 rad/s for high-speed rotation, and maintaining for 10s to finish spraying;
thirdly, after the spraying is finished, taking out the lens for plasma cleaning;
and fourthly, baking by adopting a dust-free oven after cleaning to finish the whole process.
In the first step, the humidity in the closed cavity is controlled to be 60 +/-20%, and the temperature is controlled to be 15 +/-3 ℃. In the third step, the PLASMA cleaning is carried out by a PLASMA cleaning machine. The baking condition in the fourth step is 90 ℃ for 1.5 hours. The PLASMA cleaning parameters of the PLASMA cleaner were 400W, the cleaning time was 240s, the airflow rate 1 was 1cfm, the airflow rate 2 was 200cfm, and the degree of vacuum was 10 Torr. The filter core of 0.5~1.0um is equipped with to the shower nozzle front end. The spray head adopts an air pressure spray head.
The invention adopts the lens clamp, can realize the spraying and coating of a plurality of lenses at the same time, and has high processing efficiency; the process of combining spray coating and spin coating is adopted, so that the ink on the surface of the lens is uniformly spread, and a compact film layer is uniformly formed on the surface of the lens.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (7)
1. A spraying process of a lens film is characterized by comprising a rotary fixture and a spray head which is opposite to the rotary fixture, wherein the rotary fixture comprises a rotating shaft and a rotary platform, the rotary platform is fixed on the rotating shaft, the rotary platform is provided with a clamping mechanical arm for clamping a lens fixture, a plurality of circular positioning holes with the same size are uniformly distributed on the lens fixture, the circular positioning holes are matched with the lens in size, an annular step is designed in an inward concave mode at the aperture edge of each circular positioning hole, the height of the annular step is the same as the thickness of the edge of the lens, the lens can be fixed in the circular positioning holes, a slope is designed at the aperture edge of each circular positioning hole, and the edge of the slope is tightly attached to the edge of the lens;
the process comprises the following steps: firstly, carrying out plasma cleaning on a lens to be processed, placing a rotary fixture in a closed cavity, respectively fixing the cleaned lens to be processed in a circular positioning hole of the lens fixture, and clamping the lens fixture by a clamping manipulator of the rotary fixture;
secondly, after the lens clamp is fixed, firstly rotating the lens clamp at a low speed of 100-500 rpm, uniformly spraying atomized ink by the spray head while rotating, lifting the rotation speed of the lens clamp to 6000rpm for high-speed rotation by acceleration of 1900-2200 rad/s after the ink is uniformly atomized and distributed on the surface of the whole plate lens, and maintaining the rotation speed for 10s to finish spraying;
thirdly, after the spraying is finished, taking out the lens for plasma cleaning;
and fourthly, baking by adopting a dust-free oven after cleaning to finish the whole process.
2. The process of claim 1, wherein in the first step, the humidity in the sealed chamber is controlled to be 60 ± 20%, and the temperature in the sealed chamber is controlled to be 15 ± 3 ℃.
3. A process for coating a lens film according to claim 1, wherein the PLASMA cleaning in the third step is performed by a PLASMA cleaner.
4. The process for spray coating a lens film as claimed in claim 1, wherein the baking condition in the fourth step is 90 ℃ for 1.5 hours.
5. The process of claim 3, wherein the PLASMA cleaning parameters of the PLASMA cleaner are 400W, 240s cleaning time, 1cfm air flow, 2 cfm air flow and 10Torr vacuum.
6. The spraying process of a lens film as claimed in claim 1, wherein the front end of the nozzle is provided with a filter element of 0.5-1.0 um.
7. The process of claim 1, wherein the nozzle is a pneumatic nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110624186.8A CN113231274A (en) | 2021-06-04 | 2021-06-04 | Spraying process of lens film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110624186.8A CN113231274A (en) | 2021-06-04 | 2021-06-04 | Spraying process of lens film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113231274A true CN113231274A (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110624186.8A Pending CN113231274A (en) | 2021-06-04 | 2021-06-04 | Spraying process of lens film |
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| Country | Link |
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| CN (1) | CN113231274A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157074A (en) * | 2006-10-02 | 2008-04-09 | 宾得株式会社 | Method and apparatus for forming optical film, and optical article |
| CN101585158A (en) * | 2009-07-03 | 2009-11-25 | 周梁成 | Fixture for grinding lens, and lens machining method |
| CN202061773U (en) * | 2010-07-23 | 2011-12-07 | 向熙科技股份有限公司 | Spin-coating device |
| US20150198746A1 (en) * | 2012-08-31 | 2015-07-16 | Hoya Corporation | Method for manufacturing optical lens |
| CN105848864A (en) * | 2013-11-20 | 2016-08-10 | 光学转变公司 | Method of coating a lens and lens support |
| CN211937696U (en) * | 2019-10-09 | 2020-11-17 | 杭州美迪凯光电科技股份有限公司 | Lens coating clamp |
| CN212496989U (en) * | 2020-06-16 | 2021-02-09 | 吉林省卓恒光电科技有限公司 | Fixed ball seat of using of curvature radius is 229.0 mm's lens polishing |
-
2021
- 2021-06-04 CN CN202110624186.8A patent/CN113231274A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157074A (en) * | 2006-10-02 | 2008-04-09 | 宾得株式会社 | Method and apparatus for forming optical film, and optical article |
| CN101585158A (en) * | 2009-07-03 | 2009-11-25 | 周梁成 | Fixture for grinding lens, and lens machining method |
| CN202061773U (en) * | 2010-07-23 | 2011-12-07 | 向熙科技股份有限公司 | Spin-coating device |
| US20150198746A1 (en) * | 2012-08-31 | 2015-07-16 | Hoya Corporation | Method for manufacturing optical lens |
| CN105848864A (en) * | 2013-11-20 | 2016-08-10 | 光学转变公司 | Method of coating a lens and lens support |
| CN211937696U (en) * | 2019-10-09 | 2020-11-17 | 杭州美迪凯光电科技股份有限公司 | Lens coating clamp |
| CN212496989U (en) * | 2020-06-16 | 2021-02-09 | 吉林省卓恒光电科技有限公司 | Fixed ball seat of using of curvature radius is 229.0 mm's lens polishing |
Non-Patent Citations (1)
| Title |
|---|
| 徐滨士: "《绿色再制造工程导论》", 30 June 2019, 哈尔滨工业大学 * |
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