CN112339462A - Ultrathin small lens center circular point-shaped silk-screen printing process - Google Patents
Ultrathin small lens center circular point-shaped silk-screen printing process Download PDFInfo
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- CN112339462A CN112339462A CN202011068109.0A CN202011068109A CN112339462A CN 112339462 A CN112339462 A CN 112339462A CN 202011068109 A CN202011068109 A CN 202011068109A CN 112339462 A CN112339462 A CN 112339462A
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- Prior art keywords
- ultrathin
- positioning
- silk
- screen printing
- positioning jig
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/16—Printing tables
- B41F15/18—Supports for workpieces
- B41F15/20—Supports for workpieces with suction-operated elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/003—Printing processes to produce particular kinds of printed work, e.g. patterns on optical devices, e.g. lens elements; for the production of optical devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a central dot-shaped silk-screen process for ultrathin lenslets, which comprises the following steps: the method comprises the following steps: fine grinding of the ultrathin small lenses; step two: polishing the ultrathin small lens; step three: the ultrathin small lens is transferred to a positioning jig; step four: the vacuum negative pressure positioning jig is used for adsorbing the ultrathin small lenses to enter a positioning groove of the positioning jig and clamping the ultrathin small lenses; step five: and adjusting the positioning jig to align the silk screen to the center and clamp the silk screen, wherein the positioning jig and the silk screen plate are aligned to the center point together, and the center point is ensured to be corresponding through two times of measurement. Step six: performing silk-screen printing operation; the method also comprises the seventh step: after the silk screen printing is finished, after the silk screen printing screen plate leaves the ultrathin small lens, the positioning jig relieves the vacuum negative pressure suction; taking out the ultrathin small lens; the invention provides a center dot-shaped silk-screen printing process for ultrathin small lenses, which realizes accurate positioning and processing of the center dot-shaped silk-screen printing for the ultrathin small lenses and simultaneously avoids the technical problem that the center dot-shaped silk-screen printing is easy to be adsorbed on fingers to cause dropping and can be broken under slight pressure in the processing process.
Description
Technical Field
The invention relates to the technical field of lens processing, in particular to a center dot-shaped silk-screen printing process for ultrathin lenslets.
Background
In the field of high-precision lens processing, silk-screen printing is often required on lenses, however, in the traditional silk-screen printing process, when thin and light lenses are processed, for example, the outer diameter of the processed lenses is 6.2mm, the center thickness is 1.25mm, and the edge thickness is 0.85mm, the lenses are ultrathin and ultralight lenses, the lenses are easily adsorbed on fingers in the processing process and fall off, the lenses can be broken under slight pressure, and the quality of products requires that 2.0mm black dots are silk-screen printed at the centers of the lenses, and broken edges are not allowed;
therefore, the inventor provides a center dot-shaped silk-screen process for the ultrathin lenslets by combining various factors.
Disclosure of Invention
The invention aims to provide a center dot-shaped silk-screen process for ultrathin lenslets, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a center round dot type silk-screen process for ultrathin lenslets comprises the following steps:
the method comprises the following steps: fine grinding of the ultrathin small lenses;
step two: polishing the ultrathin small lens;
step three: the ultrathin small lens is transferred to a positioning jig;
step four: the vacuum negative pressure positioning jig is used for adsorbing the ultrathin small lenses to enter a positioning groove of the positioning jig and clamping the ultrathin small lenses;
step five: and adjusting the positioning jig to align the silk screen to the center and clamp the silk screen, wherein the positioning jig and the silk screen plate are aligned to the center point together, and the center point is ensured to be corresponding through two times of measurement.
Step six: performing silk-screen printing operation; printing dots in the centers of the ultrathin lenslets by a film shadow technology;
as a further scheme of the invention: the method also comprises the seventh step: after the silk screen printing is finished, after the silk screen printing screen plate leaves the ultrathin small lens, the positioning jig relieves the vacuum negative pressure suction; the ultrathin lenslets are extracted.
As a further scheme of the invention: and seventhly, taking out the ultrathin small lenses, slightly clamping the lenses by using tweezers, and finally putting the lenses into an oven for high-temperature baking.
As a further scheme of the invention: and the ultrathin lenslets in the first step and the second step are processed by only lengthening the time by the self gravity of the machine table, so that the requirements on precision of fine grinding and polishing are met.
As a further scheme of the invention: the positioning jig is of a boss-shaped shell structure, the top of the positioning jig is at least provided with a positioning groove for clamping and positioning the lens, an air suction hole communicated with the inner cavity of the positioning jig is arranged in the positioning groove, and the positioning jig is provided with an air valve through hole;
as a further scheme of the invention: a plurality of positioning grooves are uniformly arranged in the vertical direction;
as a further scheme of the invention: the air suction hole is arranged in the middle of the positioning groove;
as a further scheme of the invention: the air suction holes are round holes;
as a further scheme of the invention: the air valve through hole is formed in the end part of the positioning jig;
as a further scheme of the invention: the outer diameter R of the lens to be processed is R +0.02mm
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a center dot-shaped silk-screen printing process for ultrathin small lenses, which realizes accurate positioning and processing of the center dot-shaped silk-screen printing for the ultrathin small lenses and simultaneously avoids the technical problem that the center dot-shaped silk-screen printing is easy to be adsorbed on fingers to cause dropping and can be broken under slight pressure in the processing process.
The invention further designs a positioning jig of vacuum negative pressure, the positioning jig and the silk screen plate are aligned to a central point together, and the central point is ensured to be aligned to the central point through two times of measurement; the positioning accuracy is high, and the vacuum adsorption clamping positioning is realized simultaneously, and the falling and adsorption on human fingers are avoided, and the vacuum adsorption is removed after the silk screen printing is finished, and the clamping is stable.
The invention does not use air pressure when the ultrathin small lenses are finely ground and polished, and the time is prolonged by the self gravity of the machine table, thereby avoiding the influence of the air pressure on grinding and polishing.
Drawings
FIG. 1 is a flow chart of a center dot type silk-screen process for ultrathin lenslets.
Fig. 2 is a schematic structural diagram of a positioning jig in a central dot-like silk-screen process of an ultrathin small lens.
In the figure: 1. positioning a jig; 2. positioning a groove; 3. a suction hole; 4. a lens; 5. an air valve through hole.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-2, a center dot type screen printing process for ultrathin lenslets includes the following steps:
s1: fine grinding of the ultrathin small lenses;
s2: polishing the ultrathin small lens;
s3: the ultrathin small lens is transferred to a positioning jig;
s4: the vacuum negative pressure positioning jig is used for adsorbing the ultrathin small lenses to enter a positioning groove of the positioning jig and clamping the ultrathin small lenses;
s5: and adjusting the positioning jig to align the silk screen to the center and clamp the silk screen, wherein the positioning jig and the silk screen plate are aligned to the center point together, and the center point is ensured to be corresponding through two times of measurement.
S6: performing silk-screen printing operation; dots were silk screened in the center of the ultrathin lenslets by film shading.
Further comprising S7: after the silk screen printing is finished, after the silk screen printing screen plate leaves the ultrathin small lens, the positioning jig relieves the vacuum negative pressure suction; taking out the ultrathin small lens; and seventhly, taking out the ultrathin small lenses, slightly clamping the lenses by using tweezers, and finally putting the lenses into an oven for high-temperature baking.
And the ultrathin lenslets in the first step and the second step are processed by only lengthening the time by the self gravity of the machine table, so that the requirements on precision of fine grinding and polishing are met.
In this embodiment, the positioning fixture 1 is a boss-shaped housing structure, the top of the positioning fixture 1 is at least provided with a positioning groove 2 for clamping and positioning the lens 4, the positioning groove 2 is internally provided with an air suction hole 3 communicated with the inner cavity of the positioning fixture 1, and the end of the positioning fixture 1 is provided with an air valve through hole 5.
In the embodiment, 6 positioning grooves 2 are vertically and uniformly arranged, so that the simultaneous silk-screen printing processing of a plurality of lenses 4 is realized; in the embodiment, the outer diameter of the lens 4 to be processed is 6.2mm, the center thickness is 1.25mm, the side thickness is 0.85mm, and the precision of the positioning groove 2 is 6.2mm +0.02mm, so that the high-precision requirement is met; the air suction holes 3 are formed in the middle of the positioning groove 2, so that the adsorption stability is improved, and the stress is uniform; the air suction holes 3 are round holes, so that air suction stress is uniform.
The working principle of the invention is as follows: after the ultrathin small lenses are finely ground and polished; on shifting ultra-thin little lens to positioning jig, connect the negative pressure air pump through pneumatic valve through-hole 5, form vacuum negative pressure in positioning jig 1, suction hole 3 on positioning jig 1 inhales thin and light lens 4 in constant head tank 2, need not artifical manual operation, avoid adsorbing and lead to the fact on the finger and drop, it will the broken condition emergence to add pressure slightly, simultaneously, breathe in the location with positioning jig 1 before the silk screen printing, the central point has been transferred, the silk screen printing is accomplished the otter board and is left lens 4's lens rear and can be relieved and breathe in, press from both sides out lens 4 gently with tweezers, be convenient for put into oven high temperature at last and toast.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (10)
1. A center round dot type silk-screen process for ultrathin lenslets is characterized by comprising the following steps:
the method comprises the following steps: fine grinding of the ultrathin small lenses;
step two: polishing the ultrathin small lens;
step three: the ultrathin small lens is transferred to a positioning jig;
step four: the vacuum negative pressure positioning jig is used for adsorbing the ultrathin small lenses to enter a positioning groove of the positioning jig and clamping the ultrathin small lenses;
step five: adjusting a positioning jig to align the silk screen to the center and clamp the silk screen, wherein the positioning jig and the silk screen plate are aligned to the center point together, and the center point is ensured to be corresponding through two measurements;
step six: performing silk-screen printing operation; dots were silk screened in the center of the ultrathin lenslets by film shading.
2. The process of claim 1, further comprising the step of: after the silk screen printing is finished, after the silk screen printing screen plate leaves the ultrathin small lens, the positioning jig relieves the vacuum negative pressure suction; the ultrathin lenslets are extracted.
3. The process of claim 1, wherein in the seventh step, the ultrathin lenslets are picked out and gently clamped by tweezers, and finally the lenses are baked in an oven at a high temperature.
4. The process of claim 2, wherein the ultrathin lenslets in the first and second steps are processed by only lengthening the time by the self gravity of the machine to meet the requirements of fine grinding and polishing precision.
5. The process of any one of claims 1 to 3, wherein the positioning fixture has a boss-shaped housing, the positioning fixture has at least one positioning groove on a top thereof for holding and positioning the lens, the positioning groove has a suction hole therein communicating with an inner cavity of the positioning fixture, and the positioning fixture has an air valve through hole therein.
6. The process of claim 4, wherein a plurality of positioning grooves are vertically and uniformly arranged.
7. The process of claim 4, wherein said suction holes are formed in the middle of said positioning grooves.
8. The process of claim 4, wherein said suction holes are round holes.
9. The process of claim 4, wherein the air valve through holes are formed in the end portions of the positioning jigs.
10. The process of claim 4, wherein the positioning groove has a precision of R +0.02mm for the outer diameter R of the lens to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011068109.0A CN112339462A (en) | 2020-10-08 | 2020-10-08 | Ultrathin small lens center circular point-shaped silk-screen printing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011068109.0A CN112339462A (en) | 2020-10-08 | 2020-10-08 | Ultrathin small lens center circular point-shaped silk-screen printing process |
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| CN112339462A true CN112339462A (en) | 2021-02-09 |
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| CN202011068109.0A Pending CN112339462A (en) | 2020-10-08 | 2020-10-08 | Ultrathin small lens center circular point-shaped silk-screen printing process |
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Citations (9)
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| CN203864163U (en) * | 2014-04-10 | 2014-10-08 | 南阳华祥光电科技股份有限公司 | Integrated circulation tool for ultrathin optical glass panels |
| CN104691123A (en) * | 2015-03-18 | 2015-06-10 | 苏州五方光电科技有限公司 | Processing technique for blue glass |
| KR20170122533A (en) * | 2016-04-27 | 2017-11-06 | (주)서우케이엔제이 | Stage clamp apparatus of screen printer |
| CN108284665A (en) * | 2017-01-10 | 2018-07-17 | 蓝思科技（长沙）有限公司 | A kind of positioning device and the method using its processing mobile phone camera lens surface |
| CN208392850U (en) * | 2018-05-07 | 2019-01-18 | 东莞星晖真空镀膜塑胶制品有限公司 | A kind of screen-printing fixture |
| CN109333166A (en) * | 2018-09-26 | 2019-02-15 | 南阳富新特光电科技有限公司 | A kind of spherical glass processing technology |
| CN109591470A (en) * | 2018-10-30 | 2019-04-09 | 东莞市银泰丰光学科技有限公司 | A kind of ink silk screen printing method of flat glass |
| CN208867028U (en) * | 2018-08-22 | 2019-05-17 | 江西联益光学有限公司 | Lens orientation component |
| CN110426763A (en) * | 2019-08-07 | 2019-11-08 | 惠州久久光学有限公司 | A kind of production technology of cam lens |
-
2020
- 2020-10-08 CN CN202011068109.0A patent/CN112339462A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203864163U (en) * | 2014-04-10 | 2014-10-08 | 南阳华祥光电科技股份有限公司 | Integrated circulation tool for ultrathin optical glass panels |
| CN104691123A (en) * | 2015-03-18 | 2015-06-10 | 苏州五方光电科技有限公司 | Processing technique for blue glass |
| KR20170122533A (en) * | 2016-04-27 | 2017-11-06 | (주)서우케이엔제이 | Stage clamp apparatus of screen printer |
| CN108284665A (en) * | 2017-01-10 | 2018-07-17 | 蓝思科技（长沙）有限公司 | A kind of positioning device and the method using its processing mobile phone camera lens surface |
| CN208392850U (en) * | 2018-05-07 | 2019-01-18 | 东莞星晖真空镀膜塑胶制品有限公司 | A kind of screen-printing fixture |
| CN208867028U (en) * | 2018-08-22 | 2019-05-17 | 江西联益光学有限公司 | Lens orientation component |
| CN109333166A (en) * | 2018-09-26 | 2019-02-15 | 南阳富新特光电科技有限公司 | A kind of spherical glass processing technology |
| CN109591470A (en) * | 2018-10-30 | 2019-04-09 | 东莞市银泰丰光学科技有限公司 | A kind of ink silk screen printing method of flat glass |
| CN110426763A (en) * | 2019-08-07 | 2019-11-08 | 惠州久久光学有限公司 | A kind of production technology of cam lens |
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Application publication date: 20210209 |
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