CN202172530U - A circuit board for oblique screen tensioning for silkscreen - Google Patents
A circuit board for oblique screen tensioning for silkscreen Download PDFInfo
- Publication number
- CN202172530U CN202172530U CN2011203009635U CN201120300963U CN202172530U CN 202172530 U CN202172530 U CN 202172530U CN 2011203009635 U CN2011203009635 U CN 2011203009635U CN 201120300963 U CN201120300963 U CN 201120300963U CN 202172530 U CN202172530 U CN 202172530U
- Authority
- CN
- China
- Prior art keywords
- screen frame
- sides
- silkscreen
- circuit board
- net
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a circuit board for oblique screen tensioning for silkscreen. The circuit board comprises a screen frame and gauze. The gauze and the screen frame form an angle not less than 0 degree and not greater than 90 degrees. During silkscreen, when a scraper goes through grids with different stress surfaces, feeding amount of printing ink is increased for guaranteeing printing ink on and between circuit sides or pad sides and lines is sufficient and thus preventing the circuit sides or the pad sides from appearing red because the printing ink on the circuit sides or the pad sides is insufficient for covering copper foil.
Description
Technical field
The utility model relates to the technical field of wiring board printing, and particularly >=2 the ounce is with the wiring board printing technology of heavy copper circuit board for resistance weldering processing.
Background technology
In the wiring board wire mark process, can produce the bad quality problems that cause of various printings and wiring board is scrapped, it not only influences manufacturing schedule but also influence product quality.The reason that produces fault is a lot, and is not only relevant with operating personnel's fabrography height, and relevant with the performance of printing material, stock, wire mark mode, half tone quality, scraper plate etc.If wire mark operating personnel's lack of skill, work quality are not high, the wire mark fault then takes place easily.Equally, if it is bad to print material, half tone, scraper plate, wire mark machine, wire mark environment etc., also can produce the wire mark fault.
In above-mentioned quality problems, modal is the lead engrail of wire mark, and oil is insufficient down in the resistance weldering between line, causes revealing copper, and the reason that produces this phenomenon is when making half tone, and mask is too thin, and half tone image itself is jagged.Avoid this phenomenon, plate-making mask film that suitable thickness and elasticity will be arranged; The image that dimensional requirement is high should be selected the polyester capillaries of high mesh for use; The direction that the direction of wire mark wire pattern will be as far as possible scrapes with scraper plate is consistent, if lead becomes the vertical scraper plate direction of motion then very to be easy to generate this phenomenon.
In the prior art, confirmed before this and need screen frame that draw in the net and grenadine tiltedly be put into screen frame on the net puller, drew in the net according to the mode of drawing in the net normally again.Anyhow the yarn footpath of grenadine keeps balance anyhow with the net puller frame, and during the frame net, the operational mode of scraper must not be parallel with the line footpath direction of grenadine, and other operating process with normal half tone is the same.It is in a basic balance that this kind draws in the net mode scraper and screen frame; The stressed basically identical of grid under scraper; How many also basically identicals under the printing ink in the half tone to the circuit board; Consistent with following oil mass between line face, plate face, line to the following oil on circuit limit or pad limit, the result does, the printing ink on circuit limit or pad limit can not be whole covers the copper pool and rubescent.
As shown in Figure 1, wiring board comprises screen frame 1 and grenadine 2 in the prior art, and the vertical latitude direction of said grenadine 2 is parallel with screen frame 1, and scraper is substantially parallel with screen frame 1 during silk-screen, the stressed basically identical of grid under scraper, and oil mass gets inhomogeneous thereby cause down.
The utility model content
The shortcoming that the purpose of the utility model is to overcome prior art is with not enough, and the wiring board that provides a kind of gauze to skew line adopts the mode that skews net, practices thrift grenadine, reduces cost.
In order to achieve the above object, the utility model adopts following technical scheme to realize: silk-screen skews the wiring board of net, comprises screen frame and grenadine, and screen frame is positioned on the net puller, and said grenadine becomes one greater than zero and less than 90 ° angle with screen frame.
Preferably, said grenadine becomes 45 with screen frame.
The utility model has following advantage and effect with respect to prior art:
When 1, improving the back scraper through grid, the stress surface of grid is different, becomes big to oil mass down, becomes big for the following oil mass space between circuit limit or pad limit, line, and pressure also becomes greatly, has guaranteed that the printing ink between circuit limit or pad limit, line is full.
2, the utility model is fit to large batch of production, and the disqualification rate of wiring board also reduces greatly.
3, the utility model adopts the mode that skews net, can practice thrift grenadine, reduces cost.
Description of drawings
Fig. 1 is the structure chart that the wiring board silk-screen draws in the net in the prior art;
Fig. 2 is the structure chart that the wiring board silk-screen of the utility model draws in the net.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the execution mode of the utility model is not limited thereto.
Embodiment
As shown in Figure 2, the utility model silk-screen skews the wiring board of net, comprise screen frame 1 and grenadine 2 ', screen frame 1 is positioned on the net puller; Said grenadine 2 ' not parallel, but become one greater than zero and less than 90 ° angle with screen frame 1, in the present embodiment, grenadine 2 ' with 1 one-tenth 45 of screen frame.In silk-screen, scraper and screen frame 1 keeping parallelism, scraper is through grid the time; The stress surface of grid is different, and along the direction that scraper advances, it is big that the pressure in the space between circuit limit or pad limit and line becomes; Following oil mass is also along with becoming big; Printing ink between circuit limit or pad limit, line is full, can cover Copper Foil completely, has avoided Copper Foil to influence the quality of silk-screen because of printing ink is inhomogeneous.
The foregoing description is the utility model preferred implementation; But the execution mode of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection range of the utility model.
Claims (2)
1. a silk-screen skews the wiring board of net, comprises screen frame and grenadine, and screen frame is positioned on the net puller, it is characterized in that, said grenadine becomes one greater than zero and less than 90 ° angle with screen frame.
2. silk-screen according to claim 1 skews the wiring board of net, it is characterized in that, said grenadine becomes 45 with screen frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203009635U CN202172530U (en) | 2011-08-18 | 2011-08-18 | A circuit board for oblique screen tensioning for silkscreen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203009635U CN202172530U (en) | 2011-08-18 | 2011-08-18 | A circuit board for oblique screen tensioning for silkscreen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172530U true CN202172530U (en) | 2012-03-21 |
Family
ID=45830715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203009635U Expired - Fee Related CN202172530U (en) | 2011-08-18 | 2011-08-18 | A circuit board for oblique screen tensioning for silkscreen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172530U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104640352A (en) * | 2013-11-06 | 2015-05-20 | 周海梅 | Method for manufacturing circuit board with high-density and high-definition characters |
| CN109080279A (en) * | 2018-07-24 | 2018-12-25 | 敬业（东莞）印刷包装厂有限公司 | The printing process of polychrome temperature sensitive ink |
| CN112930042A (en) * | 2021-01-22 | 2021-06-08 | 福建世卓电子科技有限公司 | Manufacturing method of backlight flexible circuit board |
-
2011
- 2011-08-18 CN CN2011203009635U patent/CN202172530U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104640352A (en) * | 2013-11-06 | 2015-05-20 | 周海梅 | Method for manufacturing circuit board with high-density and high-definition characters |
| CN109080279A (en) * | 2018-07-24 | 2018-12-25 | 敬业（东莞）印刷包装厂有限公司 | The printing process of polychrome temperature sensitive ink |
| CN112930042A (en) * | 2021-01-22 | 2021-06-08 | 福建世卓电子科技有限公司 | Manufacturing method of backlight flexible circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20160818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |