JPH03161337A - Washing of mask for screen printing - Google Patents
Washing of mask for screen printingInfo
- Publication number
- JPH03161337A JPH03161337A JP30292689A JP30292689A JPH03161337A JP H03161337 A JPH03161337 A JP H03161337A JP 30292689 A JP30292689 A JP 30292689A JP 30292689 A JP30292689 A JP 30292689A JP H03161337 A JPH03161337 A JP H03161337A
- Authority
- JP
- Japan
- Prior art keywords
- printing mask
- mask
- pipes
- organic solvent
- pipe
- 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.)
- Pending
Links
- 238000007650 screen-printing Methods 0.000 title claims description 11
- 238000005406 washing Methods 0.000 title abstract 2
- 238000007639 printing Methods 0.000 claims abstract description 39
- 239000003960 organic solvent Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims description 19
- 229910000679 solder Inorganic materials 0.000 claims description 15
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 abstract description 17
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 12
- 239000010935 stainless steel Substances 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
Description
【発明の詳細な説明】
ｃＪＩ１要〕
スクリーン印刷用マスクの洗浄方法の改良に関し、
所要時間が短く、且つ洗浄性が良好な洗浄方法を提供す
ることを目的とし、
印刷配線板のパッド上にクリーム状半田をスクリーン印
刷する際に用いる、印刷用マスクにおいて、多数のノズ
ルが水平に並列した一対のパイプを、密閉した筺体内に
平行に配設し、該印刷用マスクを所望に傾斜させた状態
で、一対の該パイプ間にセットし、該ノズルから所望の
高温度の有機溶剤を噴出させて、該印刷用マスクのスク
リーンの表裏の両面に高流速で投射するとともに、該パ
イプに上下方向の往復運動を付与する構戒とする。[Detailed Description of the Invention] Required cJI1] Regarding the improvement of the cleaning method for screen printing masks, the purpose of this invention is to provide a cleaning method that requires less time and has good cleaning performance, and the purpose of this invention is to apply cream to the pads of printed wiring boards. In a printing mask used when screen printing shaped solder, a pair of pipes with many nozzles arranged horizontally are arranged in parallel in a sealed housing, and the printing mask is tilted as desired. The nozzle is set between the pair of pipes, and the desired high-temperature organic solvent is jetted from the nozzle onto both the front and back surfaces of the printing mask screen at a high flow rate. The structure is designed to give reciprocating motion.
本発明は、スクリーン印刷用マスクの洗浄方法の改良に
関する。The present invention relates to an improvement in a method for cleaning a screen printing mask.
表面実装型部品を印刷配線板に半田付け実装するには、
印刷配線板の表面に配列したパッド上にクリーム状半田
を塗布し、その上に表面実装型部品の電極，或いはリー
ド端子を位置合わせして載せた後に、加熱して半田をリ
フローさせて半田付けするのが一般である。To solder and mount surface mount components to a printed wiring board,
Creamy solder is applied to the pads arranged on the surface of the printed wiring board, and the electrodes or lead terminals of the surface mount type components are aligned and placed on top of it, then heated to reflow the solder and soldered. It is common to do so.
このクリーム状半田の塗布作業は、スクリーン印刷によ
って実施される。This creamy solder application work is performed by screen printing.
上述のスクリーン印刷時には、第３図に図示したような
印刷用マスクが使用される．
第３図に示す印刷用マスクｌは、アルごニューム等のマ
スク枠２と、マスク枠２の底面側に貼着したシ一ト３と
、シ一ト３の中央部の角形窓に貼着したステンレススク
リーン４とで構戒されている。During the screen printing described above, a printing mask as shown in FIG. 3 is used. The printing mask l shown in Fig. 3 is attached to a mask frame 2 such as an album, a sheet 3 attached to the bottom side of the mask frame 2, and a rectangular window in the center of the sheet 3. It is protected by a stainless steel screen 4.
シ一ト３は、例えばポリエステル系樹脂（商品名テトロ
ン）等よりなる、弾力性あるシートである。The sheet 3 is an elastic sheet made of, for example, polyester resin (trade name: Tetron).
また、ステンレススクリーン４は厚さが０．１５ｍｍ〜
０．２５ｍｍのステンレス製のシートである。ステンレ
ススクリーン４には、印刷配線板のそれぞれのパッドに
対応してパターン孔４Ａが配列している。In addition, the thickness of the stainless steel screen 4 is 0.15 mm ~
It is a 0.25 mm stainless steel sheet. Patterned holes 4A are arranged in the stainless steel screen 4 in correspondence with each pad of the printed wiring board.
ところで、クリーム状半田の印刷作業を終了した後に、
印刷用マスク１を放置すると、クリーム状半田がシ一ト
３及びステンレススクリーン４の表面に凝固して付着す
る。このようなことになると次回に使用する時に、スキ
ージーがステンレススクリーン４の表面を円滑に摺動し
なくなる。By the way, after finishing printing the creamy solder,
When the printing mask 1 is left undisturbed, creamy solder solidifies and adheres to the surfaces of the sheet 3 and the stainless steel screen 4. If this happens, the squeegee will not slide smoothly on the surface of the stainless steel screen 4 the next time it is used.
また、クリーム状半田がパターン孔４Ａに凝固し付着し
て、パターン孔４Ａが部分的に目詰まりとなる。このよ
うなことになると、パッドの全表面に均一にクリーム状
半田を塗布することが出来なくなる。Further, the creamy solder solidifies and adheres to the pattern holes 4A, causing the pattern holes 4A to become partially clogged. When this happens, it becomes impossible to uniformly apply creamy solder to the entire surface of the pad.
したがって、１ロットの印刷配線板のスクリーン印刷作
業が終了すると、印刷用マスクを洗浄している。Therefore, when the screen printing work for one lot of printed wiring boards is completed, the printing mask is cleaned.
上述の印刷用マスクの洗浄は、従来、有機溶剤（例えば
１・１・１−｝リクロロエタン）を満たした洗浄用容器
内に、印刷用マスクを入れ、シート，及びステンレスス
クリーンの表裏の両面をブラシで擦る等して、クリーム
状半田を手作業で洗い落としていた。Conventionally, the printing mask described above is cleaned by placing the printing mask in a cleaning container filled with an organic solvent (for example, 1,1,1-}lichloroethane), and cleaning both the front and back of the sheet and stainless steel screen. The creamy solder was washed off by hand by scrubbing with a brush.
この際、洗浄時の有機溶剤の温度を高く（例えば７０゜
Ｃ前後）すると、その洗浄性が向上する。At this time, if the temperature of the organic solvent during cleaning is raised (for example, around 70°C), the cleaning performance will be improved.
一方、この有機溶剤の蒸気を多量に吸い込むと、人体に
悪影響を及ぼす。On the other hand, inhaling a large amount of this organic solvent vapor has a negative effect on the human body.
このために、従来の有機溶剤の使用温度は、ほぼ常温で
あった。For this reason, conventional organic solvents have been used at approximately room temperature.
したがって、上記従来の洗浄方法は、手作業で所要時間
が長いばかりでなく、有機溶剤が低温のことに起因して
、パターン孔部分等にクリーム状半田の洗い残しがある
という問題点があった。Therefore, the conventional cleaning method described above not only requires a long time for manual cleaning, but also has the problem that creamy solder remains in the pattern holes etc. due to the low temperature of the organic solvent. .
本発明はこのような点に鑑みて創作されたもので、所要
時間が短く、且つ洗浄性が良好な洗浄方法を提供するこ
とを目的としている。The present invention was created in view of these points, and an object of the present invention is to provide a cleaning method that requires less time and has good cleaning performance.
上記の目的を達威するために本発明は、第ｌ図に示した
ように、多数のノズル６が水平に並列した一対のパイプ
５を、密閉した筺体内に平行に配設する。In order to achieve the above object, the present invention, as shown in FIG. 1, arranges a pair of pipes 5 in which a number of nozzles 6 are horizontally arranged in parallel in a closed housing.
洗浄すべき印刷用マスク１を所望に傾斜させた状態で、
一対のパイプ５間にセットする。With the printing mask 1 to be cleaned tilted as desired,
Set it between a pair of pipes 5.
そして、ノズル６から所望に高い温度の有機溶剤７を噴
出させて、印刷用マスクｌのスクリーンの表裏の両面に
高流速で投射するとともに、パイブ５に上下方向の往復
運動を付与して、洗浄を実施するものである。Then, the organic solvent 7 at a desired high temperature is ejected from the nozzle 6 at a high flow rate onto both the front and back surfaces of the screen of the printing mask l, and the pipe 5 is given reciprocating motion in the vertical direction to clean it. The purpose is to implement the following.
本発明方法によれば、ステンレススクリーン４に投射さ
れる有機溶剤が高温度であるから、有機溶剤自体の洗浄
性が高いばかりでなく、投射される噴流の速度が相当に
速いことで、パターン孔４八等に付着しているクリーム
状半田が機械的に除去される。According to the method of the present invention, since the organic solvent sprayed onto the stainless steel screen 4 is at a high temperature, not only the organic solvent itself has high cleaning properties, but also the sprayed jet stream has a considerably high speed, which makes it possible to clean the pattern holes. The creamy solder adhering to 48 etc. is mechanically removed.
また、パイプが上下方向の往復運動を行っているので、
ステンレススクリーン４の表裏の全面が一様に洗浄され
る。即ち、印刷用マスクｌの洗浄が短時間で済む。Also, since the pipe is reciprocating in the vertical direction,
The entire front and back surfaces of the stainless steel screen 4 are uniformly cleaned. That is, cleaning of the printing mask l can be done in a short time.
なお、高温な有機溶剤が印刷用マスク１に投射され飛散
するが、密閉した筺体内で洗浄作業が行われるので、人
体には何等の悪影響がない。Note that although the high-temperature organic solvent is projected onto the printing mask 1 and scatters, there is no adverse effect on the human body because the cleaning work is performed within a sealed housing.
［実施例〕
以下図を参照しながら、本発明を具体的に説明する。な
お、全図を通じて同一符号は同一対象物を示す。[Example] The present invention will be specifically described below with reference to the drawings. Note that the same reference numerals indicate the same objects throughout the figures.
第２図は本発明の実施例の構或図である。FIG. 2 is a schematic diagram of an embodiment of the present invention.
第２図において、有機溶剤７（例えばｌ・１・１−トリ
クロロエタン）は、上部が開口した容器１２内に投入さ
れ、図示省略したヒーターにより例えば７０゜Ｃの温度
に保持されている。In FIG. 2, an organic solvent 7 (for example, 1.1.1-trichloroethane) is introduced into a container 12 with an open top, and is maintained at a temperature of, for example, 70° C. by a heater (not shown).
容器ｌ２の上部に回動自在に多数のローラ１５を水平に
一列に配設して、印刷用マスク１をローラ１５上に載せ
押し込むことで、印刷用マスクｌを容器ｌ２上にセット
することが容易のようにしてある。A large number of rotatable rollers 15 are disposed horizontally in a row above the container l2, and the printing mask 1 is placed on the rollers 15 and pushed in, so that the printing mask l can be set on the container l2. It seems easy.
なお、ローラ１５の上方に水平に支えバーｌ６を設け、
印刷用マスク１の倒して、その上部をこの支えバーｌ６
で支えることで、印刷用マスク１は約８０度傾斜した状
態で支えれる。In addition, a support bar l6 is provided horizontally above the roller 15,
Fold down the printing mask 1 and place its upper part on this support bar l6.
By supporting the printing mask 1 at an angle of about 80 degrees, the printing mask 1 can be supported at an angle of about 80 degrees.
また、セットした状態の印刷用マスクｌの両側には、多
数のノズル６が水平に並列した一対のパイプ５を、水平
に設置してある。Furthermore, a pair of pipes 5 in which a large number of nozzles 6 are horizontally arranged are installed horizontally on both sides of the set printing mask l.
ノズル６は、それぞれのパイプ５の印刷用マスク側に設
けてある。The nozzle 6 is provided on the printing mask side of each pipe 5.
コノハイプ５の長さは、印刷用マスク１の前後の長さ以
上に長く、それぞれのパイプ５の一端は主パイブ１０に
連結され、主パイプ１０はフレキシブルパイブ１１を介
してポンプ（図示省略）の吐出口に連通し、このボンブ
は容器１２内に設置されている。The length of the conohype 5 is longer than the front and back length of the printing mask 1, and one end of each pipe 5 is connected to a main pipe 10, and the main pipe 10 is connected to a pump (not shown) via a flexible pipe 11. This bomb communicates with the discharge port and is installed within the container 12 .
したがって、ポンプを駆動することで、パイプ５中で有
機溶剤７の圧力が約２ｋｇ／ｃｄとなり、それぞれのノ
ズル６から高流速の有Ｖ９．溶剤７が噴出し、印刷用マ
スクｌのステンレススクリーン４の表裏の両面に投射さ
れる。Therefore, by driving the pump, the pressure of the organic solvent 7 in the pipe 5 becomes approximately 2 kg/cd, and a high flow rate is generated from each nozzle 6. The solvent 7 is ejected and projected onto both the front and back surfaces of the stainless steel screen 4 of the printing mask 1.
一方、主パイブ１０（即ちパイプ５）後部には、垂直の
貫通孔を有するパイプホルダ２０を設けてある。On the other hand, a pipe holder 20 having a vertical through hole is provided at the rear of the main pipe 10 (ie, the pipe 5).
そして、パイプホルダ２０の貫通孔をガイドバ−２２が
遊貫することで、主パイプ１０即ちパイプ５は水平に状
態を保持する。The guide bar 22 loosely passes through the through hole of the pipe holder 20, so that the main pipe 10, that is, the pipe 5, is maintained horizontally.
さらにガイドバ−２２の後方の上下に、一対のスプロケ
ットホイール２６を設け、このスプロケットホイール２
６にチェーン２５を巻張し、パイプホルダ２０をこのチ
ェーン２５に固着してある。Furthermore, a pair of sprocket wheels 26 are provided above and below the rear of the guide bar 22.
A chain 25 is wound around 6, and a pipe holder 20 is fixed to this chain 25.
また、上部のスプロケットホイール２６は駆動軸２７に
連結している。Further, the upper sprocket wheel 26 is connected to a drive shaft 27.
したがって、駆動軸２７を所望に正逆回転することで、
パイプ５は上下の往復運動を行う。Therefore, by rotating the drive shaft 27 forward and backward as desired,
The pipe 5 reciprocates up and down.
この往復運動のストロークは、印刷用マスク１の高さに
ほぼ等しいものである。The stroke of this reciprocating motion is approximately equal to the height of the printing mask 1.
なお、上述の容器！２．パイプ５．ガイドパー２２等の
一弐の設備は、密閉自在の筺体内に設置してある。In addition, the container mentioned above! 2. Pipe 5. The second equipment, such as the guide par 22, is installed in a sealable housing.
上述にょうな構戒として、筐体の扉を開き洗浄すべき印
刷用マスク１をローラ１５に載せ、支えバー１６に立て
掛けて印刷用マスク１をセットし、その後扉を閉める。As described above, the door of the housing is opened, the printing mask 1 to be cleaned is placed on the roller 15, the printing mask 1 is set by leaning against the support bar 16, and then the door is closed.
そして、ボンブ．及び駆動軸２７を駆動して、ノズル６
から所望の高温の有機溶剤７を噴出させて、印刷用マス
クｌのスクリーンの表裏の両面に高流速で投射するとと
もに、パイプ５に上下方向の往復運動を付与して、印刷
用マスクの洗浄を実施を行う。And Bomb. and the drive shaft 27 to drive the nozzle 6.
A desired high-temperature organic solvent 7 is spouted from the printing mask l and is projected onto both the front and back surfaces of the screen of the printing mask l at a high flow rate, and the pipe 5 is given reciprocating motion in the vertical direction to clean the printing mask. carry out implementation.
従来の洗浄時間が約２０分であったのに対して、上述の
洗浄方法によれば、その洗浄時間は約５分である。While the conventional cleaning time was about 20 minutes, the cleaning time according to the above-mentioned cleaning method is about 5 minutes.
また、印刷用マスクを傾斜した状態で洗浄しているので
、流し落とされたクリーム状半田，及び有機溶剤がマス
ク枠部分に留まることなく、総て容器ｌ２に流れ落ちる
。Furthermore, since the printing mask is washed in an inclined state, the creamy solder and organic solvent that have been poured off do not stay on the mask frame, but all flow down into the container 12.
以上説明したように本発明は、所要時間が短く、且つ洗
浄性が良好で、クリーム状半田の除去が完全に実施し得
るという、実用上で優れた効果がある。As explained above, the present invention has excellent practical effects in that the required time is short, the cleaning performance is good, and creamy solder can be completely removed.
また、有機溶剤が飛散することがなくて、人体に何等の
悪影響がない。Furthermore, the organic solvent is not scattered and does not have any adverse effects on the human body.
第１図は本発明の原理を示す図、
第２図は本発明の実施例の構戒図、
第３図はスクリーン印刷用マスクの一部破断斜視図であ
る．
図において、
■は印刷用マスク、
２はマスク枠、
３はシート、
４はステンレススクリーン、
４Ａはパターン孔、
５４はパイプ、
６はノズル、
７は有機溶剤、
１０は主パイプ、
ｌ２は容器、
ｌ６は支えバー
２０はパイプホルダ、
２２はガイドバー
２５はチェーンをそれぞれ示す。
本莞４月の原理を示す図
本発明の冥光例のａ成図
第
２
図
１印眉１１用マスク
スクリーン印局１１用マスクの一郁潔彊斥全斗視図第
３
図Fig. 1 is a diagram showing the principle of the present invention, Fig. 2 is a schematic diagram of an embodiment of the invention, and Fig. 3 is a partially cutaway perspective view of a screen printing mask. In the figure, ■ is a printing mask, 2 is a mask frame, 3 is a sheet, 4 is a stainless steel screen, 4A is a pattern hole, 54 is a pipe, 6 is a nozzle, 7 is an organic solvent, 10 is a main pipe, l2 is a container, The support bar 20 is a pipe holder, and the guide bar 25 is a chain. A diagram showing the principle of the present invention A diagram of the example of the dark light of the present invention 2 Figure 1 Mask for the seal eyebrows 11 Screen for the mask for the stamp 11 Ichiku Jiejiang complete view Figure 3
Claims (1)
刷する際に用いる、印刷用マスク（１）において、 多数のノズル（６）が水平に並列した一対のパイプ（５
）を、密閉した筺体内に平行に配設し、該印刷用マスク
（１）を所望に傾斜させた状態で、一対の該パイプ（５
）間にセットし、 該ノズル（６）から所望の高温度の有機溶剤（７）を噴
出させて、該印刷用マスク（１）のスクリーンの表裏の
両面に高流速で投射するとともに、該パイプ（５）に上
下方向の往復運動を付与することを特徴とするスクリー
ン印刷用マスクの洗浄方法。[Claims] In a printing mask (1) used when screen printing creamy solder onto pads of a printed wiring board, a pair of pipes (5) each having a large number of nozzles (6) are arranged horizontally.
) are arranged in parallel in a sealed housing, and with the printing mask (1) tilted as desired, the pair of pipes (5
), and the desired high-temperature organic solvent (7) is jetted from the nozzle (6) at a high flow rate onto both the front and back surfaces of the screen of the printing mask (1), and the pipe (5) A method for cleaning a screen printing mask, which comprises applying vertical reciprocating motion to the screen printing mask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30292689A JPH03161337A (en) | 1989-11-21 | 1989-11-21 | Washing of mask for screen printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30292689A JPH03161337A (en) | 1989-11-21 | 1989-11-21 | Washing of mask for screen printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03161337A true JPH03161337A (en) | 1991-07-11 |
Family
ID=17914791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30292689A Pending JPH03161337A (en) | 1989-11-21 | 1989-11-21 | Washing of mask for screen printing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03161337A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05193123A (en) * | 1992-01-22 | 1993-08-03 | Yoshimura Densetsu Kk | Method and device for full-automatic cleaning and draining of brush roller |
| JP2009283842A (en) * | 2008-05-26 | 2009-12-03 | Nakamura Choko:Kk | Method of cleaning metal plate |
| CN109720087A (en) * | 2019-01-08 | 2019-05-07 | 京东方科技集团股份有限公司 | A kind of printing screen cleaning device and cleaning system |
-
1989
- 1989-11-21 JP JP30292689A patent/JPH03161337A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05193123A (en) * | 1992-01-22 | 1993-08-03 | Yoshimura Densetsu Kk | Method and device for full-automatic cleaning and draining of brush roller |
| JP2009283842A (en) * | 2008-05-26 | 2009-12-03 | Nakamura Choko:Kk | Method of cleaning metal plate |
| CN109720087A (en) * | 2019-01-08 | 2019-05-07 | 京东方科技集团股份有限公司 | A kind of printing screen cleaning device and cleaning system |
| CN109720087B (en) * | 2019-01-08 | 2020-08-18 | 京东方科技集团股份有限公司 | Printing screen cleaning device and cleaning system |
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