CN105744752B - The uniform method of anti-welding printing - Google Patents
The uniform method of anti-welding printing Download PDFInfo
- Publication number
- CN105744752B CN105744752B CN201610156417.6A CN201610156417A CN105744752B CN 105744752 B CN105744752 B CN 105744752B CN 201610156417 A CN201610156417 A CN 201610156417A CN 105744752 B CN105744752 B CN 105744752B
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- China
- Prior art keywords
- scraper
- copper coin
- ink
- screen frame
- pedestal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/282—Applying non-metallic protective coatings for inhibiting the corrosion of the circuit, e.g. for preserving the solderability
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/01—Tools for processing; Objects used during processing
- H05K2203/0104—Tools for processing; Objects used during processing for patterning or coating
- H05K2203/0134—Drum, e.g. rotary drum or dispenser with a plurality of openings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/16—Inspection; Monitoring; Aligning
- H05K2203/163—Monitoring a manufacturing process
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Printing Methods (AREA)
- Screen Printers (AREA)
Abstract
The uniform method of anti-welding printing, the placement location of screen frame and printed pattern is indicated among the exposure table top of halftone, according to the size of screen frame and the size design scraper pedestal of printed pattern, by scraper floor installation in the centre of screen frame, affixed scraper on the scraper pedestal, scraper is moved among the top of halftone, scraper pushes, adjust the height of scraper, record scraper rigid connection touches scale during pcb board face, scraper lifts, the knob on scraper both sides is rotated down 2 circles again, locking, copper coin is printed with ink, 2min is stood after printing, ink thickness on copper coin is measured.Operating type of the present invention is simple, easy to operate, easily grasps, applied widely；Ink thickness is uniform, and beneficial to the progress of subsequent handling, the rate of pass greatly improves.
Description
Technical field
The present invention relates to pcb board technology manufacture fields, the particularly uniform method of anti-welding printing.
Background technology
Pcb board, also known as printed circuit board (PCB), printed wiring board, abbreviation printed board using insulation board as base material, are cut into a scale
It is very little, it is at least attached there are one conductive pattern thereon, and hole (such as component hole, fastener hole, plated through-hole) is furnished with, and realize electronics member
Interconnection between device.Since this plate is using electron printing making, therefore it is referred to as " printing " circuit board.It is this
Circuit board needs to carry out anti-welding printing in process of production.
At present, common anti-welding printing flow is：Pre-treatment-printing-exposure-development, pre-treatment are cleaning plate face, are increased
Roughness；Printing is to print last layer ink in plate face；Pre-baked is by the ink primary solidification after printing, so as to exposure operation；It exposes
The just process of image transfer, then expose required pad by developing.
During printing, lowest level is pcb board, and centre is halftone, is above scraper, ink is poured on halftone, lead to
It crosses scraper pressure and at the uniform velocity walks, ink is uniformly coated onto on pcb board face；There is a certain distance pre- between halftone and pcb board
Quality problems, the longer both sides of scraper such as Antisticking, product ink are pressed onto the pressure in plate face due to the influence of halftone tension, scraper both sides
Can be smaller than intermediate, easily it is present with ink both sides thickness, the phenomenon that intermediate thin；In addition, due to adjusting machine mode adjusted in printing process,
Scraper both sides pressure can be caused inconsistent.Ink thickness uniformity during printing directly affects quality of finished, and because of halftone tension
Related with the level of scraper, plank size is bigger, and ink thickness uniformity is poorer, the bad management and control of exposure energy during exposure,
Easily there is the region of ink thickness, UV light is less, and polymerization is incomplete because bottom ink absorbs, and easily develops excessively in development；Oil
The thin region absorption UV light of ink is more, causes to open a window less than normal.
The content of the invention
The technical problems to be solved by the invention are to overcome drawbacks described above existing in the prior art, provide a kind of energy control
Ink thickness uniformity, the uniform method of the simple anti-welding printing of operating type.
The technical solution adopted by the present invention to solve the technical problems is the uniform method of anti-welding printing, in the exposure of halftone
The placement location of mark screen frame and printed pattern among light table face, according to the size design scraper pedestal of screen frame and printed pattern
Size, by scraper floor installation on the centre of screen frame, the scraper pedestal affixed scraper, scraper is moved in the top of halftone
Between, scraper pushes, and adjusts the height of scraper, and record scraper rigid connection touches the scale in pcb board face, and scraper lifts, then by scraper both sides
Knob be rotated down 2 circles, lock, copper coin is printed with ink, 2min is stood after printing, to the ink thickness on copper coin
It is measured.
Further, the width of the scraper pedestal is smaller 20cm than the width of screen frame, and the width of scraper pedestal compares printed pattern
Big more than the 5cm of width.
Further, the distance on the scraper pedestal to the opposite both sides of screen frame is identical.
Further, the ink thickness on the copper coin is measured using wet-film thickness measurement instrument.
Further, the ink thickness on the copper coin is chosen on the left of copper coin, intermediate and each 2 points of right side is measured.
Further, the copper coin left side, the very poor management and control of each 2 points of measurements ink thickness in intermediate and right side are within 5um.
Further, addition manner of the ink in printing is a small amount of multiple.
Compared with prior art, the invention has the advantages that：Operating type is simple, easy to operate, easily grasps, and is applicable in
Scope is wide；Ink thickness is uniform, and beneficial to the progress of subsequent handling, the rate of pass greatly improves, effectively control job parameter and
Material reduces ink thickness difference caused by scraper both ends are influenced without supporting deformation or halftone tension, in the centre of exposure table top
The placement location of screen frame and printed pattern is indicated, according to the size of screen frame and the size design scraper pedestal of printed pattern, will be scraped
Knife floor installation is in the centre of screen frame；Effectively avoid scraper both sides pressure inconsistent, caused by ink thickness difference, scraper is moved
To the top of halftone, scraper pushes, and adjusts the height of scraper, and record scraper rigid connection touches the scale in pcb board face, scraper lift
It rises, then the knob on scraper both sides is rotated down 2 circles, lock；Effectively control ink into factory's viscosity, be not required to adjustment viscosity, keep away
Exempt from the difference that personnel adjust ink viscosity, ink is avoided to be raised for a long time using viscosity, influence ink thickness, ink is in printing
Addition manner for it is a small amount of repeatedly.
Specific embodiment
The invention will be further described with reference to embodiments.
Embodiment
The present embodiment indicates the placement location of screen frame and printed pattern among the exposure table top of halftone, according to screen frame and print
The size of the size design scraper pedestal of map brushing shape, by scraper floor installation in the centre of screen frame, it is ensured that printed pattern is placed in the middle, institute
Affixed scraper on scraper pedestal is stated, scraper is moved among the top of halftone, scraper pushes, and adjusts the height of scraper, and record is scraped
Knife rigid connection touches the scale in pcb board face, and scraper lifts, then the knob on scraper both sides is rotated down 2 circles, and locking avoids both sides from pressing
Power is inconsistent, caused by ink thickness difference, copper coin is printed with ink, 2min is stood after printing, to the oil on copper coin
Black thickness is measured.
In the present embodiment, the width of the scraper pedestal is smaller 20cm than the width of screen frame, and the width of scraper pedestal is than printing
Big more than the 5cm of width of figure.
In the present embodiment, the distance on the opposite both sides of the scraper pedestal to screen frame is identical, reduces scraper both ends without support
Ink thickness difference caused by deformation or halftone tension influence.
In the present embodiment, the ink thickness on the copper coin is measured using wet-film thickness measurement instrument.
In the present embodiment, the ink thickness on the copper coin is chosen on the left of copper coin, intermediate and each 2 points of right side is measured,
The copper coin left side, the very poor management and control of each 2 points of measurements ink thickness in intermediate and right side are within 5um.
In the present embodiment, addition manner of the ink in printing is a small amount of multiple, and ink is avoided disposably to add
It is more, it is raised for a long time using viscosity, causes ink thickness difference.
Operating type is simple, easy to operate, easily grasps, applied widely；Ink thickness is uniform, beneficial to subsequent handling into
Row, the rate of pass greatly improve.
Claims (6)
1. the uniform method of anti-welding printing, which is characterized in that indicate screen frame and printed pattern among the exposure table top of halftone
Placement location, according to the size of screen frame and the size design scraper pedestal of printed pattern, by scraper floor installation in screen frame
Between, affixed scraper on the scraper pedestal moves to scraper among the top of halftone, and scraper pushes, and adjusts the height of scraper, note
Record scraper rigid connection touches the scale in pcb board face, and scraper lifts, then the knob on scraper both sides is rotated down 2 circles, and ink is used in locking
Copper coin is printed, 2min is stood after printing, the ink thickness on copper coin is measured.
2. the uniform method of anti-welding printing according to claim 1, which is characterized in that the width of the scraper pedestal compares net
The small 20cm of width of frame, the width of scraper pedestal are bigger more than 5cm than the width of printed pattern.
3. the uniform method of anti-welding printing according to claim 1 or 2, which is characterized in that the scraper pedestal to screen frame
Opposite both sides distance it is identical.
4. the uniform method of anti-welding printing according to claim 3, which is characterized in that the ink thickness on the copper coin is adopted
It is measured with wet-film thickness measurement instrument.
5. the uniform method of anti-welding printing according to claim 4, which is characterized in that the ink thickness choosing on the copper coin
It takes on the left of copper coin, intermediate and each 2 points of right side is measured.
6. the uniform method of anti-welding printing according to claim 5, which is characterized in that the copper coin left side, the intermediate and right side
The very poor management and control of each 2 points of measurements ink thickness in side is within 5um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156417.6A CN105744752B (en) | 2016-03-18 | 2016-03-18 | The uniform method of anti-welding printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156417.6A CN105744752B (en) | 2016-03-18 | 2016-03-18 | The uniform method of anti-welding printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105744752A CN105744752A (en) | 2016-07-06 |
| CN105744752B true CN105744752B (en) | 2018-05-18 |
Family
ID=56250870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610156417.6A Active CN105744752B (en) | 2016-03-18 | 2016-03-18 | The uniform method of anti-welding printing |
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| Country | Link |
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| CN (1) | CN105744752B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106132110A (en) * | 2016-07-12 | 2016-11-16 | 奥士康科技股份有限公司 | A kind of monitoring method of pcb board anti-welding printing ink thickness |
| CN109124641A (en) * | 2018-06-27 | 2019-01-04 | 邹可权 | A kind of intelligence sign language perception gloves and its manufacturing process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1446039A (en) * | 2002-03-14 | 2003-10-01 | 华通电脑股份有限公司 | Solder paste print deice for remnant stannum easy to be shed-off |
| CN102271466A (en) * | 2011-07-08 | 2011-12-07 | 深圳市精诚达电路有限公司 | Method for protecting surface of flexible printed circuit board |
| CN102371752A (en) * | 2010-08-23 | 2012-03-14 | 富葵精密组件(深圳)有限公司 | Printing device |
| CN202310321U (en) * | 2011-10-09 | 2012-07-04 | 深圳市丰达兴线路板制造有限公司 | Screen printing hole plugging equipment |
| CA2910431A1 (en) * | 2013-04-26 | 2014-10-30 | Nissan Motor Co., Ltd. | Screen printing apparatus with ink recovery mechanism and related method |
-
2016
- 2016-03-18 CN CN201610156417.6A patent/CN105744752B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1446039A (en) * | 2002-03-14 | 2003-10-01 | 华通电脑股份有限公司 | Solder paste print deice for remnant stannum easy to be shed-off |
| CN102371752A (en) * | 2010-08-23 | 2012-03-14 | 富葵精密组件(深圳)有限公司 | Printing device |
| CN102271466A (en) * | 2011-07-08 | 2011-12-07 | 深圳市精诚达电路有限公司 | Method for protecting surface of flexible printed circuit board |
| CN202310321U (en) * | 2011-10-09 | 2012-07-04 | 深圳市丰达兴线路板制造有限公司 | Screen printing hole plugging equipment |
| CA2910431A1 (en) * | 2013-04-26 | 2014-10-30 | Nissan Motor Co., Ltd. | Screen printing apparatus with ink recovery mechanism and related method |
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| Publication number | Publication date |
|---|---|
| CN105744752A (en) | 2016-07-06 |
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