CN112829487A - Printing alignment method of annular printing screen - Google Patents
Printing alignment method of annular printing screen Download PDFInfo
- Publication number
- CN112829487A CN112829487A CN202110288518.XA CN202110288518A CN112829487A CN 112829487 A CN112829487 A CN 112829487A CN 202110288518 A CN202110288518 A CN 202110288518A CN 112829487 A CN112829487 A CN 112829487A
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- printing
- alignment
- screen
- annular
- positions
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004364 calculation method Methods 0.000 claims abstract description 11
- 238000007689 inspection Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052802 copper Inorganic materials 0.000 claims description 26
- 239000010949 copper Substances 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 241001233242 Lontra Species 0.000 description 8
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
Classifications
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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
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
-
- 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
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/28—Printing on other surfaces than ordinary paper on metals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Screen Printers (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The invention relates to a printing alignment method of an annular printing screen plate. The positions of the products identified by the two alignment cameras and the positions of the identification marks on the screen are compared through a computer, and the alignment problem during printing is solved by adjusting the rotating speed of the annular printing screen, the horizontal direction angle of the annular printing screen and the positions of the alignment rollers after calculation. And arranging a deviation checking camera at the position passing through the printing screen plate, and checking whether the printing precision of the printing ink meets the specification requirement through the deviation checking camera. The invention has the beneficial effects that: the alignment process can be carried out while the printing ink of the annular printing screen is printed, so that the printing precision is ensured, and the production efficiency is greatly improved; and arranging an offset inspection camera behind the printing position, and calculating to obtain the yield of the printing process.
Description
Technical Field
The invention relates to a printing alignment method of an annular printing screen plate, belonging to the technical field of circuit board manufacturing.
Background
The high-precision circuit board product has extremely high requirements on the precision and thickness of ink printing, so that the production equipment is complex, the process difficulty is high, the production efficiency is low, and the bottleneck process for restricting the production efficiency of the high-precision circuit board is realized. Can greatly improve production efficiency in the annular printing otter board design, reduce the technology degree of difficulty, but because annular printing otter board structure is special, there is the problem of printing counterpoint difficulty, use the counterpoint camera to discern the counterpoint mark on roll-type substrate and the printing otter board respectively when the printing is counterpointed, calculate the distance that acquires the printing otter board and need adjust in carrying direction and product broad width direction through equipment, portable otter board platform drives the printing otter board and makes corresponding position adjustment back, the otter board platform descends, the scraper removes and pushes down printing ink and accomplishes a printing process, the otter board platform rises, the substrate carries a printing distance after, carry out the counterpoint process next time again, every printing process all needs counterpoint one by one, consume time long, low in production efficiency. In addition, the ink alignment of different products has different mark design positions, so that the complexity of design work is increased, and the specification and error prevention of a product design end are not facilitated.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a printing alignment method of an annular printing screen plate. The positions of the products identified by the two alignment cameras and the positions of the identification marks on the screen are compared through a computer, and the rotation speed of the annular printing screen, the horizontal direction angle of the annular printing screen and the positions of the alignment rollers are adjusted after calculation, so that the alignment problem during printing is solved. And arranging a deviation checking camera at the position passing through the printing screen plate, and checking whether the printing precision of the printing ink meets the specification requirement through the deviation checking camera.
The invention is realized by the following technical scheme: a printing alignment method of an annular printing screen is characterized by comprising the following steps:
step 1: two rows of copper surface alignment marks with equal intervals are designed on two sides of a product on a tape type base material, the intervals of the copper surface alignment marks are fixed specification values, and the sizes of the copper surface alignment marks are specification values R1;
step 2: designing a gauze alignment mark at a position corresponding to the printing gauze and the copper surface alignment mark, wherein the space between the gauze alignment mark and the copper surface alignment mark is a fixed specification value, the size of the gauze alignment mark is R2, and the size R2 of the gauze alignment mark is = the size R1 of the copper surface alignment mark and the absolute value of the printing precision tolerance of ink;
and step 3: mounting and fixing two sides of the printing screen on circular structural members at two ends of an annular bracket to form an annular printing screen;
and 4, step 4: the method comprises the steps that two screen plate alignment cameras at the centers of annular printing screen plates are arranged at the same positions of the two ends of each annular printing screen plate during alignment, an included angle alpha between the center line of each screen plate alignment camera and the radius of a printing position of a scraper is measured, the arc length L =2 pi R alpha/360 is calculated according to the radius R of each annular printing screen plate, two substrate alignment cameras pointing to the plane of a tape-type substrate are arranged at the two ends of the tape-type substrate which is L away from the printing position of the scraper, the distances between the observation positions of the screen plate alignment cameras and the substrate alignment cameras and the printing position are the same, and the graphic center position of a copper surface alignment mark on the tape-type substrate and the graphic center position of a gauze alignment mark;
and 5: the method comprises the steps that a roll-to-roll substrate is conveyed while an annular printing screen rotates, linear speeds of printing positions are equal, central points of copper surface alignment marks and screen yarn alignment marks at each position of the substrate alignment camera and the substrate alignment camera are obtained one by one respectively, comparison is carried out through an equipment computer, when deviation of the central points exceeds printing precision requirements, deviation in the conveying direction occurs at the central points at the two positions simultaneously, the rotating speed of the annular screen is finely adjusted through the control equipment after comparison and calculation of the computer, if deviation in the product width direction occurs at the central points at the two positions simultaneously, fine adjustment in the product width direction is carried out through two alignment rollers of the control equipment after comparison and calculation of the computer, if deviation distances at the central points at the two positions are inconsistent, the annular printing screen is controlled to carry out angle fine adjustment in the horizontal direction through comparison and calculation of the computer, and the rotating speeds of the positions of the alignment rollers and the annular printing screen are, aligning adjustment is carried out to complete the alignment of ink printing;
step 6: and arranging a deviation checking camera behind the printing position to check whether the printing precision is within the specification requirement range.
And the optimal value of the included angle alpha between the central line of the alignment camera of the measuring screen and the radius of the printing position of the scraper is calculated and determined according to different radius sizes of the annular printing screen and the corresponding speed factors of the equipment.
The space specification value of the copper surface alignment mark is 4.75 mm.
The invention has the beneficial effects that: the alignment process can be carried out while the printing ink of the annular printing screen is printed, so that the printing precision is ensured, and the production efficiency is greatly improved;
the spaces of the alignment marks are set by the same specification value, the size of the copper-surface alignment mark can be determined to be the specification value, the size of the alignment mark on the printing gauze is designed according to the printing precision, the design rule of printing the alignment mark is unified, and the design standardization is improved;
and arranging an offset inspection camera behind the printing position, judging whether the printing precision is within the range of the specification requirement of the product or not by comparing the acquired ink printing images at the two ends of the product, and calculating to obtain the yield of the printing process.
Drawings
The invention is further illustrated below with reference to the figures and examples.
FIG. 1 is a schematic of step 1 of the present invention;
FIG. 2 is a schematic of step 2 of the present invention;
FIG. 3 is a schematic of step 3 of the present invention;
FIG. 4 is a schematic of step 4 of the present invention;
fig. 5 is a schematic view of the operational state of the present invention.
In the figure: 1. a roll-to-roll substrate; 2. printing a screen; 3. an annular support; 4. an annular printing screen; 5. a screen plate alignment camera; 6. a scraper printing position; 7. a substrate alignment camera; 8. aligning rollers; 9. an offset inspection camera; 11. copper surface alignment marking; 21. and marking the gauze by alignment.
Detailed Description
A method for printing and aligning a circular printing screen as shown in fig. 1 to 5, comprising the steps of:
step 1: two rows of copper surface alignment marks 11 with equal intervals are designed on two sides of a product on the tape type base material 1, the interval of the copper surface alignment marks 11 is a fixed specification value, and the size of the copper surface alignment marks 11 is a specification value R1;
step 2: designing a gauze alignment mark 21 at a position corresponding to the printing gauze 2 and the copper surface alignment mark 11, wherein the distance between the gauze alignment marks 21 is a fixed specification value, the size of the gauze alignment mark 21 is R2, and the size R2 of the gauze alignment mark 21 = the size R1 of the copper surface alignment mark 11 + the absolute value of the printing precision tolerance of ink;
and step 3: mounting and fixing two sides of the printing screen 2 on circular structural members at two ends of an annular bracket 3 to form an annular printing screen 4;
and 4, step 4: during alignment, two screen alignment cameras 5 at the center of the annular printing screen 4 are arranged at the same positions of the two ends of the annular printing screen 4, an included angle alpha between the center line of the screen alignment camera 5 and the radius of a scraper printing position 6 is measured, the radius R of the annular printing screen 4 is calculated to obtain the arc length L =2 pi R alpha/360, then two substrate alignment cameras 7 pointing to the plane of the tape substrate 1 are arranged at the two ends of the tape substrate 1 which is L away from the scraper printing position 6, the distances between the observation positions of the screen alignment cameras 5 and the substrate alignment cameras 7 and the printing position are the same, and the graphic center position of the copper surface alignment mark 11 on the tape substrate 1 and the graphic center position of the gauze alignment mark 21 on the annular printing screen 4 can be observed and obtained respectively;
and 5: the method comprises the steps that a roll-to-roll type substrate 1 is conveyed while an annular printing screen 4 rotates, the linear speed of the positions of printing positions is equal, the central point positions of a copper surface alignment mark 11 and a gauze alignment mark 21 of each position passing through a screen alignment camera 5 and a substrate alignment camera 7 are obtained one by one respectively, comparison is carried out through an equipment computer, when the central point position deviation exceeds the printing precision requirement, deviation in the conveying direction occurs at the two central points at the same time, the rotating speed of the annular screen 4 is finely adjusted through control equipment after computer comparison calculation, if deviation in the product width direction occurs at the two central points at the same time, fine adjustment in the product width direction is carried out through two alignment rollers 8 of the control equipment after computer comparison calculation, if deviation distances of the two central points are inconsistent, the annular printing screen 4 is controlled to carry out angle fine adjustment in the horizontal direction through computer comparison calculation, and the positions of the alignment rollers 8 and the annular printing are finely adjusted in a The rotation speed of the screen 4 is adjusted to achieve the alignment of ink printing;
step 6: an offset inspection camera 9 is provided after the printing position to inspect whether the printing accuracy is within the specification required range.
And the optimal value of the included angle alpha between the central line of the measuring screen alignment camera 5 and the radius of the printing position 6 of the scraper is calculated and determined according to different radius sizes of the annular printing screen and the corresponding speed factors of the equipment.
The spacing specification value of the copper face alignment mark 11 is 4.75 mm.
Claims (3)
1. A printing alignment method of an annular printing screen is characterized by comprising the following steps:
step 1: two rows of copper surface alignment marks (11) with equal intervals are designed on two sides of a product on a tape type base material (1), the interval between the copper surface alignment marks (11) is a fixed specification value, and the size of the copper surface alignment marks (11) is a specification value R1;
step 2: designing a gauze alignment mark (21) at a position where the printing gauze (2) corresponds to the copper surface alignment mark (11), wherein the distance between the gauze alignment marks (21) is a fixed specification value, the size of the gauze alignment mark (21) is R2, and the size R2 of the gauze alignment mark (21) is = the size R1 of the copper surface alignment mark (11) plus the absolute value of the printing precision tolerance of the ink;
and step 3: mounting and fixing two sides of the printing screen (2) on circular structural members at two ends of the annular bracket (3) to form an annular printing screen (4);
and 4, step 4: when in alignment, two screen alignment cameras (5) at the centers of the annular printing screens (4) are arranged at the same positions at the two ends of the annular printing screens (4), an included angle alpha between the center line of the screen alignment camera (5) and the radius of the printing position (6) of the scraper is measured, the arc length L =2 pi R alpha/360 is calculated by the radius R of the annular printing screens (4), then two substrate alignment cameras (7) pointing to the plane of the tape-type substrate (1) are arranged at two ends of the tape-type substrate (1) which are L away from the scraper printing position (6), the distances between the observation positions of the screen alignment camera (5) and the substrate alignment camera (7) and the printing position are the same, and the graphic center position of the copper surface alignment mark (11) on the tape-type substrate (1) and the graphic center position of the gauze alignment mark (21) on the annular printing screen (4) can be observed and obtained respectively;
and 5: the method comprises the steps that a roll-to-roll substrate (1) is conveyed while an annular printing screen (4) rotates, the linear speeds of printing positions are equal, the central point positions of a copper surface alignment mark (11) and a gauze alignment mark (21) of each position passing through a screen alignment camera (5) and a substrate alignment camera (7) are obtained one by one respectively, comparison is carried out through an equipment computer, when the central point position deviation exceeds the printing precision requirement, deviation in the conveying direction occurs at the central points at the two positions at the same time, the rotation speed of the annular screen (4) is finely adjusted through control equipment after computer comparison calculation, if deviation in the product width direction occurs at the central points at the two positions at the same time, fine adjustment in the product width direction is carried out through two alignment rollers (8) of the control equipment after computer comparison calculation, if deviation distances occur at the central points at the two positions are inconsistent, the annular printing screen (4) is controlled through computer comparison calculation to carry out angle fine adjustment in the horizontal direction Adjusting and matching the position of the fine adjustment alignment roller (8) and the rotation speed of the annular printing screen plate (4), and performing alignment adjustment to complete alignment of ink printing;
step 6: an offset inspection camera (9) is provided after the printing position to inspect whether the printing precision is within the specification required range.
2. The printing alignment method of the circular printing screen plate as claimed in claim 1, wherein: and the optimal value of the included angle alpha between the central line of the measuring screen alignment camera (5) and the radius of the printing position (6) of the scraper is calculated and determined according to different radius sizes of the annular printing screen and the corresponding speed factors of the equipment.
3. The printing alignment method of the circular printing screen plate as claimed in claim 1, wherein: the space specification value of the copper surface alignment mark (11) is 4.75 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110288518.XA CN112829487B (en) | 2021-03-18 | 2021-03-18 | Printing alignment method of annular printing screen plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110288518.XA CN112829487B (en) | 2021-03-18 | 2021-03-18 | Printing alignment method of annular printing screen plate |
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| Publication Number | Publication Date |
|---|---|
| CN112829487A true CN112829487A (en) | 2021-05-25 |
| CN112829487B CN112829487B (en) | 2022-07-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998156A (en) * | 1972-09-08 | 1976-12-21 | Peter Zimmer | Rotary screen registration system |
| CN102079162A (en) * | 2009-12-01 | 2011-06-01 | 北大方正集团有限公司 | Aligning mark and aligning method for screen printing |
| CN102582243A (en) * | 2012-02-13 | 2012-07-18 | 西安航天华阳印刷包装设备有限公司 | Full-servo back label printing, intaglio printing, rotary screen printing and embossing register control method |
| WO2016117971A1 (en) * | 2015-01-22 | 2016-07-28 | 성안기계 주식회사 | Method for controlling roll-to-roll process |
| CN205836218U (en) * | 2016-06-03 | 2016-12-28 | 杭州宏华数码科技股份有限公司 | The printing machine frame that digit printing is Tong Bu with ROTARY SCREAM PRINTING |
-
2021
- 2021-03-18 CN CN202110288518.XA patent/CN112829487B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998156A (en) * | 1972-09-08 | 1976-12-21 | Peter Zimmer | Rotary screen registration system |
| CN102079162A (en) * | 2009-12-01 | 2011-06-01 | 北大方正集团有限公司 | Aligning mark and aligning method for screen printing |
| CN102582243A (en) * | 2012-02-13 | 2012-07-18 | 西安航天华阳印刷包装设备有限公司 | Full-servo back label printing, intaglio printing, rotary screen printing and embossing register control method |
| WO2016117971A1 (en) * | 2015-01-22 | 2016-07-28 | 성안기계 주식회사 | Method for controlling roll-to-roll process |
| CN205836218U (en) * | 2016-06-03 | 2016-12-28 | 杭州宏华数码科技股份有限公司 | The printing machine frame that digit printing is Tong Bu with ROTARY SCREAM PRINTING |
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| Publication number | Publication date |
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| CN112829487B (en) | 2022-07-08 |
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Effective date of registration: 20240129 Address after: 221300 north of Liaohe Road and west of Huashan Road, Pizhou Economic Development Zone, Xuzhou City, Jiangsu Province Patentee after: Jiangsu SHANGDA Semiconductor Co.,Ltd. Country or region after: China Address before: 518100 floors 1-4, 2-3, building a, Huangpu Runhe Industrial Park, South Ring Road, Huangpu Community, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: LEADER-TECH ELECTRONICS (SHENZHEN) Inc. Country or region before: China |