CN103213376A - Rapid line change method in silk-screen printing process - Google Patents
Rapid line change method in silk-screen printing process Download PDFInfo
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- CN103213376A CN103213376A CN2013101357223A CN201310135722A CN103213376A CN 103213376 A CN103213376 A CN 103213376A CN 2013101357223 A CN2013101357223 A CN 2013101357223A CN 201310135722 A CN201310135722 A CN 201310135722A CN 103213376 A CN103213376 A CN 103213376A
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Abstract
The invention relates to a rapid line change method in the silk-screen printing process in the industry of printed circuit boards. The rapid line change method in the silk-screen printing process comprises the following steps of: additionally drilling two positioning mechanical holes outside a molding area of a PCB (printed circuit board) and at the left and right sides of a central line of a long side of the PCB, wherein the interval between the two positioning mechanical holes is constant, the distance between the two positioning mechanical holes relative and a central line is constant, and meanwhile the length of a projection line of the distance between the two positioning mechanical holes in the long side direction of the PCB is less than the size of the long side of the PCB with the minimum size, so that the length of the projection line of the distance between the two positioning mechanical holes in the wide side direction of the PCB is less than the size of the wide side of the PCB with the minimum size; adding diaphragms corresponding to the two positioning mechanical holes in the PCB at the corresponding part of a substrate taken as a screen plate; and fixing the coordinates of the two positioning mechanical holes in the screen plate on the PCB when the substrate taken as the screen plate is exposed and diaphragms of the screen plate are made. According to the method provided by the invention, the line change time is saved greatly, and the equipment capacity is improved.
Description
Technical field
The present invention relates to Quick Changeover method in the screen printing process in a kind of printed circuit board industry.
Background technology
In accurate wiring board industry, in the anti-welding procedue screen printing process, require relatively stricter for half tone figure and the contraposition of PCB surface lines, in the production process for the different product item number, when switching new item number in the important procedure traditional contraposition mode spended time longer relatively, reduced equipment productivity, reduced equipment capacity, waste employee useful labor power.In human resources more and more shortage and human cost more and more higher today, how promoting that personnel's output value rises in value with the equipment that makes again is the important directions of business research.
In PCB solder-mask printing thread-changing process, important step is the half tone figure and take advantage of loading PCB line pattern corresponding one by one, and this process is called the printing contraposition.Contraposition principle commonly used is in PCB corner location rig tool hole, and as the important tool that frame net in the printing thread-changing process is transferred net, often the big board size of PCB is also inconsistent owing to the different product item number, and position of positioning hole difference also inequality is shared.So when switching item number, each separation of copulating moth position PIN and frame contraposition PIN are thread-changing process key steps, the cost plenty of time.
At present, serigraphy thread-changing flow process is as follows:
1, will make the half tone that has figure and be erected at above the printing machine, and fix with screw;
2, will locate PIN and stick double faced adhesive tape, half sticks in the bottom on guide plate bar or the thin plate, stretch into the half tone bottom, find four jiaos of arbitrary registration holes positions, press gently half tone is guaranteed that the figure registration holes overlaps up and down with location PIN, firmly depress PIN behind the OK PIN is fixed on the table of printing machine, extract the instrument thin plate then out;
3, repeat above 2 steps, on table top, find out the registration holes position at another angle and stick the PIN nail;
4, pcb board on PIN puts on the shelf utilizes two holes to determine that a line fixes a rectangular planes (pcb board), and then in all the other two registration holes positions, it is more firm directly to stick PIN(4 PIN printing process from the below according to the plank position);
5, dress scraper and paste aid such as backing plate at table top;
6, inking up on the half tone has a fling at initial workpiece and finely tunes.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and can improve anti-welding printing thread-changing efficient greatly, shorten whole thread-changing flow process and save Quick Changeover method in a kind of screen printing process of conversion time.
According to technical scheme provided by the invention, the Quick Changeover method comprises the steps: in described a kind of screen printing process
A. outside the shaping area of pcb board and in position, the center line left and right sides, the long limit of pcb board, add and bore mechanical hole, two location, and the spacing in mechanical hole, two location is fixed, the fixed distance of mechanical hole, two location phase center line, guarantee that simultaneously the projection line length of distance on the pcb board long side direction guarantees that less than the long limit size of the pcb board of size minimum the projection line length of distance on the pcb board broadside is less than the broadside size of the pcb board of size minimum between the mechanical hole, two location between the mechanical hole, two location;
B. at the correspondence position interpolation of the egative film of doing half tone and two corresponding figures in mechanical hole, location of pcb board;
C. when making the egative film exposure that is used as half tone make the figure of half tone, guarantee that two coordinates of mechanical hole, location on half tone on the pcb board are fixed up.
Method of the present invention has been omitted and has been torn location PIN open and look for the position to press net to paste a series of loaded down with trivial details flow processs such as PIN again, and actual conversion time can shorten closely 2/3 after implementing, and has saved conversion time greatly, has promoted equipment capacity.
Description of drawings
Fig. 1 is the structural representation of existing pcb board.
Fig. 2 is the structural representation of pcb board among the present invention.
Fig. 3 is the production method schematic diagram of half tone among the present invention.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
Before improving as shown in Figure 1, anti-welding printing edges of boards are hung the PIN locating hole, and wherein A1, A2, A3 and A4 are locating hole, are used for hanging PIN and fix.M is the fool proof hole, prevents that the positive and negative extension is wrong.
A. be shown in outside the long edge forming district as Fig. 2, long limit center line each side increases mechanical hole, a location, promptly locate mechanical hole B1 and the mechanical hole B2 in location, the projection line length of distance on the pcb board long side direction of wherein locating between mechanical hole B1 and the mechanical hole B2 in location is 255mm, less than long limit minimum of a value 355.6mm(14 inch in the factory), locate mechanical hole B1 and locate mechanical hole B2 on same horizontal line, it is vertical with center line with the straight line that the mechanical hole B2 in location determines promptly to locate mechanical hole B1, wherein locating mechanical hole B1 is 130mm to the distance of center line, locating mechanical hole B2 is 125mm to the distance of center line, locate mechanical hole B1 and the mechanical hole B2 in location mutually the incomplete symmetry of center line can prevent wrong PIN(foolproof function on the positive and negative).
B. shift production method as Fig. 3 half tone figure and picture, fixing for guaranteeing framing machinery hole B1, the mechanical hole B2 in location position (coordinate) on half tone, make in the following way: 2. be placed on 1. centre position of exposure machine glass table top with to be printed of egative film for the first time, on exposure glass table top, find out the corresponding mechanical hole B1 in location, B2 position, mechanical hole, location, make to indicate C1, C2 in glass back; In this way, every egative film is as long as the mechanical hole B1 in location, the mechanical hole B2 in location overlap with C1, C2, locatees mechanical hole B1, locatees the coordinate that 1. mechanical hole B2 go up at exposure machine glass table top and fix.
C. for the first time 3. half tone is placed on 1. centre position of exposure machine glass table top, goes out 3. adjacent two angles of half tone at exposure table top subscript, and with table top with one side with two " L " type PP tool C3 and C4 in the fixed-site at angle, be used for fixing half tone 3..C1, C2 position have guaranteed that 1. half tone go up coordinate at table top and fix.(annotate: equipment has been fixed the half tone size and has been fixed relatively.）
When e. making half tone and be half tone and carrying out image transfer, C1, C2 have guaranteed that 1. the mechanical hole B1 in location, the mechanical hole B2 in location go up coordinate at exposure machine glass table top and fix.C3, C4 position have guaranteed that 1. half tone go up coordinate at exposure machine glass table top and fix.So the half tone of making is located mechanical hole B1, location mechanical hole B2 image is fixed on half tone.Because the draw-in groove size and the position of printing frame half tone all are fixing when changing half tone at every turn, under the situation that table top is not manually adjusted, it is fixing that each half tone is located the point that mechanical hole B1, the mechanical hole B2 in location print to table of printing machine, after table top is located mechanical hole B1, location B2 position, mechanical hole hung up contraposition PIN, can not remove during the number of reloading.
F. the serigraphy thread-changing flow process after improving, reorientate with the separation of copulating moth position PIN of main the 2nd step to the 4 steps in the thread-changing step of the prior art and according to new item number and to put frame PIN and omitted, the inking up initial workpiece that directly enters the 5th step and the 6th step is finely tuned.So method of the present invention has shortened thread-changing flow process and conversion time greatly.
Embodiment 2
A. be shown in outside the long edge forming district as Fig. 2, respectively increase a registration holes about the center line of long limit and locate mechanical hole B1 and the mechanical hole B2 in location, and the distance that satisfies between mechanical hole B1 in location and the mechanical hole B2 in location is 200mm, less than the long limit of PCB in factory minimum of a value 355.6mm(14 inch), the line of locating mechanical hole B1 and the mechanical hole B2 in location is by the center line five equilibrium, promptly locate mechanical hole B1 with the location mechanical hole B2 to center line distance from equating, locating mechanical hole B1 is 85 ~ 87 ° with the line of locating mechanical hole B2 with long limit center line angle, center line is asymmetric mutually with 2 positions of mechanical hole B2, location for the mechanical hole B1 in location like this, can prevent that so wrong PIN(promptly has the fool proof function on the positive and negative).
B. shift production method as Fig. 3 half tone figure and picture, for guaranteeing that framing machinery hole B1 is fixing with the mechanical hole B2 in location position (coordinate) on half tone, make in the following way: 2. be placed on 1. centre position of exposure machine glass table top with to be printed of egative film for the first time, on exposure glass table top, find out corresponding mechanical hole B1 in location and the position of locating mechanical hole B2, make to indicate C1, C2 in glass back; In this way, every egative film is located mechanical hole B1 and is fixed with the coordinate that 1. the mechanical hole B2 in location goes up at exposure machine glass table top as long as the mechanical hole B1 in location overlaps with C1, C2 with the mechanical hole B2 in location.
C. because the half tone size is to fix (1M*1M commonly used) according to the table top size, 3. half tone is placed on 1. centre position of exposure machine glass table top, go out 3. adjacent two angles of half tone at exposure table top subscript and promptly fixed whole throwing the net, and with table top with one side with two " L " type PP tool C3 and C4 in the fixed-site at angle, be used for fixing half tone 3..C1, C2 position have guaranteed that 1. half tone go up coordinate at table top and fix.(annotate: equipment has been fixed the half tone size and has been fixed relatively.）
When e. making half tone and be half tone and carrying out image transfer, C1, C2 have guaranteed that 1. the mechanical hole B1 in location goes up coordinate with the mechanical hole B2 in location at exposure machine glass table top and fix.C3, C4 position have guaranteed that 1. half tone go up coordinate at exposure machine glass table top and fix.So the half tone of making is located mechanical hole B1 and is fixed on half tone with mechanical hole, location B2 image.Because the draw-in groove size and the position of printing frame half tone all are fixing when changing half tone at every turn, under the situation that table top is not manually adjusted, it is fixing with the point that the mechanical hole B2 in location prints to table of printing machine that each half tone is located mechanical hole B1, after table top is located mechanical hole B1 B2 position, mechanical hole is scraped contraposition PIN with the location, hang up behind the initial workpiece and to increase an auxiliary PIN in M position, the asymmetric fool proof of plate face hole, positive and negative extension is wrong in the anti-volume production process, locatees mechanical hole B1 during the number of reloading and does not remove with the mechanical hole B2 in location.
F. the serigraphy thread-changing flow process after improving, reorientate with the separation of copulating moth position PIN of main the 2nd step to the 4 steps in the thread-changing step of the prior art and according to new item number and to put frame PIN and omitted, the inking up initial workpiece that directly enters the 5th step and the 6th step is finely tuned.So method of the present invention has shortened thread-changing flow process and conversion time greatly.
A. be shown in outside the long edge forming district as Fig. 2, respectively increase a mechanical hole B1 in location and the mechanical hole B2 in location about the center line of long limit.And the distance that satisfies between mechanical hole B1 in location and the mechanical hole B2 in location is 200mm, less than the long limit of PCB in factory minimum of a value 355.6mm(14 inch), B1 and B2 by the center line five equilibrium promptly to center line distance from equating, promptly locate mechanical hole B1 with the mechanical hole B2 in location to center line distance from being 100mm, locate mechanical hole B1 and locate mechanical hole B2 about the center line symmetry.When utilizing the mechanical hole B1 in location to scrape initial workpiece again, hang up PIN (utilizing plate face fool proof hole to prevent that the positive and negative extension is anti-) in M position, fool proof hole with the mechanical hole B2 in location.
B. shift production method as Fig. 3 half tone figure and picture, for guaranteeing that framing machinery hole B1 is fixing with the mechanical hole B2 in location position (coordinate) on half tone, make in the following way: 2. be placed on 1. centre position of exposure machine glass table top with to be printed of egative film for the first time, on exposure glass table top, find out corresponding mechanical hole B1 in location and B2 position, mechanical hole, location, make to indicate C1, C2 in glass back; In this way, every egative film is located mechanical hole B1 and is fixed with the coordinate that 1. the mechanical hole B2 in location goes up at exposure machine glass table top as long as the mechanical hole B1 in location overlaps with C1, C2 with the mechanical hole B2 in location.
C. because the half tone size is to fix (1M*1M commonly used) according to the table top size, 3. half tone is placed on 1. centre position of exposure machine glass table top, go out 3. adjacent two angles of half tone at exposure table top subscript and promptly fixed whole throwing the net, and with table top with one side with two " L " type PP tool C3 and C4 in the fixed-site at angle, be used for fixing half tone 3..C1, C2 position have guaranteed that 1. half tone go up coordinate at table top and fix.(annotate: equipment has been fixed the half tone size and has been fixed relatively.）
When e. making half tone and be half tone and carrying out image transfer, C1, C2 have guaranteed that 1. the mechanical hole B1 in location goes up coordinate with the mechanical hole B2 in location at exposure machine glass table top and fix.C3, C4 position have guaranteed that 1. half tone go up coordinate at exposure machine glass table top and fix.So the half tone of making, B1, B2 image are fixed on half tone.Because the draw-in groove size and the position of printing frame half tone all are fixing when changing half tone at every turn, under the situation that table top is not manually adjusted, it is fixing with the point that the mechanical hole B2 in location prints to table of printing machine that each half tone is located mechanical hole B1, after table top is located mechanical hole B1 B2 position, mechanical hole is scraped contraposition PIN with the location, hang up behind the initial workpiece and to increase an auxiliary PIN in M position, the asymmetric fool proof of plate face hole, positive and negative extension is wrong in the anti-volume production process, and B1, B2 do not remove during the number of reloading.
F. the serigraphy thread-changing flow process after improving, reorientate with the separation of copulating moth position PIN of main the 2nd step to the 4 steps in the thread-changing step of the prior art and according to new item number and to put frame PIN and omitted, the inking up initial workpiece that directly enters the 5th step and the 6th step is finely tuned.So method of the present invention has shortened thread-changing flow process and conversion time greatly.
Claims (1)
1. Quick Changeover method in the screen printing process is characterized in that this method comprises the steps:
A. outside the shaping area of pcb board and in position, the center line left and right sides, the long limit of pcb board, add and bore mechanical hole, two location, and the spacing in mechanical hole, two location is fixed, the fixed distance of mechanical hole, two location phase center line, guarantee that simultaneously the projection line length of distance on the pcb board long side direction guarantees that less than the long limit size of the pcb board of size minimum the projection line length of distance on the pcb board broadside is less than the broadside size of the pcb board of size minimum between the mechanical hole, two location between the mechanical hole, two location;
B. at the correspondence position interpolation of the egative film of doing half tone and two corresponding figures in mechanical hole, location of pcb board;
C. when making the egative film exposure that is used as half tone make the figure of half tone, guarantee that two coordinates of mechanical hole, location on half tone on the pcb board are fixed up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101357223A CN103213376A (en) | 2013-04-18 | 2013-04-18 | Rapid line change method in silk-screen printing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101357223A CN103213376A (en) | 2013-04-18 | 2013-04-18 | Rapid line change method in silk-screen printing process |
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| CN103213376A true CN103213376A (en) | 2013-07-24 |
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| CN2013101357223A Pending CN103213376A (en) | 2013-04-18 | 2013-04-18 | Rapid line change method in silk-screen printing process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149484A (en) * | 2014-08-21 | 2014-11-19 | 江苏迪飞达电子有限公司 | PCB printing locating method |
| CN108116032A (en) * | 2018-01-30 | 2018-06-05 | 鹤山市泰利诺电子有限公司 | A kind of PCB silk printing screens location structure and center positioning method |
| CN112654171A (en) * | 2020-11-09 | 2021-04-13 | 龙南骏亚柔性智能科技有限公司 | Solder mask screen printing method for printed circuit board |
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| JPH11170481A (en) * | 1997-12-10 | 1999-06-29 | Micro Tec Kk | Screen printer and method for screen printing |
| JP2003237022A (en) * | 2002-02-13 | 2003-08-26 | Dainippon Printing Co Ltd | Alignment method, alignment apparatus and screen for screen printing |
| CN201256481Y (en) * | 2008-07-08 | 2009-06-10 | 常州澳弘电子有限公司 | PCB board having contraposition pores |
| CN101537505A (en) * | 2008-12-30 | 2009-09-23 | 南京依利安达电子有限公司 | Small-aperture high-density drilling method of printed circuit board |
| 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 |
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- 2013-04-18 CN CN2013101357223A patent/CN103213376A/en active Pending
Patent Citations (6)
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| CN1040170A (en) * | 1988-07-12 | 1990-03-07 | 安格尔·山巴拉·卡尼尔 | The navigation system of screen process press and the printing down of web plate and positioner |
| JPH11170481A (en) * | 1997-12-10 | 1999-06-29 | Micro Tec Kk | Screen printer and method for screen printing |
| JP2003237022A (en) * | 2002-02-13 | 2003-08-26 | Dainippon Printing Co Ltd | Alignment method, alignment apparatus and screen for screen printing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149484A (en) * | 2014-08-21 | 2014-11-19 | 江苏迪飞达电子有限公司 | PCB printing locating method |
| CN104149484B (en) * | 2014-08-21 | 2017-01-18 | 江苏迪飞达电子有限公司 | PCB printing locating method |
| CN108116032A (en) * | 2018-01-30 | 2018-06-05 | 鹤山市泰利诺电子有限公司 | A kind of PCB silk printing screens location structure and center positioning method |
| CN112654171A (en) * | 2020-11-09 | 2021-04-13 | 龙南骏亚柔性智能科技有限公司 | Solder mask screen printing method for printed circuit board |
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Application publication date: 20130724 |