JP2009143110A - Screen printing machine - Google Patents

Screen printing machine Download PDF

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Publication number
JP2009143110A
JP2009143110A JP2007323019A JP2007323019A JP2009143110A JP 2009143110 A JP2009143110 A JP 2009143110A JP 2007323019 A JP2007323019 A JP 2007323019A JP 2007323019 A JP2007323019 A JP 2007323019A JP 2009143110 A JP2009143110 A JP 2009143110A
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Prior art keywords
mask
substrate
printing
screen printing
printing machine
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Pending
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JP2007323019A
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Japanese (ja)
Inventor
Masabumi Wada
正文 和田
Noriaki Mukai
範昭 向井
Makoto Honma
真 本間
Shinichiro Kawabe
伸一郎 川辺
Akio Igarashi
章雄 五十嵐
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Hitachi Plant Technologies Ltd
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Hitachi Plant Technologies Ltd
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Priority to JP2007323019A priority Critical patent/JP2009143110A/en
Priority to KR1020080123909A priority patent/KR20090064306A/en
Priority to TW097148017A priority patent/TW200940342A/en
Priority to CNA2008101855247A priority patent/CN101456278A/en
Publication of JP2009143110A publication Critical patent/JP2009143110A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/02—Manually-operable devices
    • B41F15/06—Manually-operable devices with auxiliary equipment, e.g. for drying printed articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/16—Printing tables
    • B41F15/18—Supports for workpieces
    • B41F15/20—Supports for workpieces with suction-operated elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/02—Magnetic devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a misalignment from occurring between a mask and a substrate while printing a solder paste or flux on the substrate by screen printing due to miniaturization and growth in size of the object for printing. <P>SOLUTION: Mask surface supporting members are mounted to hold a mask around the substrate that is an object for the printing, one of the mask surface supporting members being fixedly mounted so that it may abut one side of the substrate mounted on the printing table, and the other can move to the end of the other side of the substrate. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明はスクリーン印刷装置に係り、特にファインピッチの開口部のパターン形成に最適なスクリーン印刷装置に関する。   The present invention relates to a screen printing apparatus, and more particularly to a screen printing apparatus that is optimal for pattern formation of openings having fine pitches.

従来のスクリーン印刷装置では特許文献１に記載のように印刷時に、スキージで半田ペーストを印刷時に版離れの良い方式の印刷機が開発されている。   In a conventional screen printing apparatus, as described in Patent Document 1, a printing machine has been developed that has a good plate separation when printing solder paste with a squeegee during printing.

特開２００７−２１８８２号公報Japanese Patent Laid-Open No. 2007-21882

上記従来技術では、スクリーンと基板間にある程度の隙間を設ける必要があり、スキージでマスクを基板に押し付けることで半田ペーストを基板に印刷する構造となっている。しかし最近、印刷する印刷パターンが微細化し、かつ大型の基板を印刷する要求が大きくなっている。微細パターンの印刷を行う場合、従来技術の問題点として、スキージでマスクを基板に押し付けマスク面上を移動する場合のスキージとマスク間の摩擦抵抗によるマスクの伸びにより、位置ずれが発生することが有る。このためには印刷対象物である基板とマスクの密着性を向上して、位置ずれのない状態で印刷する必要がある。このため、従来と異なり、基板とマスクの密着性をよくすると共に、版離れも基板に余分なペーストが付着しないようにする必要がある。また、装置の小型化等のために基板を保持する印刷テーブルが基板を保持できる大きさに制限される。さらに通常、印刷に使用するマスクの大きさは、基板面積に対して大きなマスクを使用するようにしているため、基板に対して、マスクがはみ出しその部分が支持のない状態で保持されるために、マスク自体が変形し、それが印刷に悪影響を及ぼす場合もある。   In the above-described conventional technology, it is necessary to provide a certain gap between the screen and the substrate, and the solder paste is printed on the substrate by pressing the mask against the substrate with a squeegee. However, recently, a print pattern to be printed is miniaturized, and a demand for printing a large substrate is increasing. When printing a fine pattern, as a problem of the prior art, when the mask is pressed against the substrate with a squeegee and moved on the mask surface, the position shift may occur due to the elongation of the mask due to the frictional resistance between the squeegee and the mask. Yes. For this purpose, it is necessary to improve the adhesion between the substrate to be printed and the mask, and to perform printing without any misalignment. For this reason, unlike the prior art, it is necessary to improve the adhesion between the substrate and the mask and to prevent the excess paste from adhering to the substrate even when the plate is separated. In addition, the size of the printing table that holds the substrate is limited to a size that can hold the substrate in order to reduce the size of the apparatus. Furthermore, the size of the mask used for printing is usually a mask that is larger than the area of the substrate, so that the mask protrudes from the substrate and that part is held in an unsupported state. In some cases, the mask itself is deformed, which adversely affects printing.

そこで、本発明の目的は、印刷時の基板とマスクの密着性を増し、かつ簡単に版離れの行える印刷装置として、ファインピッチでかつ大型基板に印刷の行えるスクリーン印刷装置を提供することにある。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a screen printing apparatus that can print on a large substrate with a fine pitch as a printing apparatus that can increase the adhesion between a substrate and a mask at the time of printing and can be easily separated. .

はんだペーストあるいはフラックスを押し込み、基板面に転写するスクリーン印刷機において、印刷テーブルに保持された基板の周辺部のマスク面を基板側から保持するマスク面保持部材を設け、マスクを基板面とマスク面保持部材とで保持した状態でマスク面上において、スキージを移動させてマスク開口部にはんだペースト又はフラックスを供給する構成としたことを特徴とする。   In a screen printer that pushes solder paste or flux and transfers it to the substrate surface, a mask surface holding member that holds the mask surface of the peripheral portion of the substrate held on the printing table from the substrate side is provided, and the mask is attached to the substrate surface and the mask surface. It is characterized in that the soldering paste or flux is supplied to the mask opening by moving the squeegee on the mask surface while being held by the holding member.

また、マスク面保持部材に吸着機構を設ける構成とすることで、基板面周囲のマスクを吸着保持することで確実にマスクを保持できる。   In addition, by providing the mask surface holding member with the suction mechanism, the mask can be reliably held by sucking and holding the mask around the substrate surface.

マスクの変形を防止できるために微細ピッチのパターンでも位置ずれを起こすことなく、確実に印刷することが可能となる。また、印刷時マスク面は常に基板及びマスク面支持部材に接触しているために、マスク裏面へのはんだペースト又はフラックスが回り込むことがなく、安定した印刷形状を実現できる。このため、通常は複数回印刷するたびにマスク裏面の清掃が必要であったが、その清掃回数を低減でき、印刷の生産性を向上できる。   Since the mask can be prevented from being deformed, even a fine pitch pattern can be reliably printed without causing a positional shift. Further, since the mask surface at the time of printing is always in contact with the substrate and the mask surface support member, the solder paste or flux does not wrap around the mask back surface, and a stable printed shape can be realized. For this reason, it is usually necessary to clean the back surface of the mask each time printing is performed a plurality of times. However, the number of cleanings can be reduced, and the productivity of printing can be improved.

さらに、確実にマスク面を保持できるために、先の実施例でも述べたようにはんだペーストやフラックスのマスク裏面への回り込みを防止できる。又基板周囲のマスクを確実に固定することで、基板周囲の境界部におけるマスクと基板との密着性が向上する。この結果、印刷開始部位、及び終了部位と基板中央部のはんだペーストの転写形状及び転写量の均一化が測れる。   Furthermore, since the mask surface can be reliably held, it is possible to prevent the solder paste or flux from entering the back surface of the mask as described in the previous embodiment. In addition, by securely fixing the mask around the substrate, the adhesion between the mask and the substrate at the boundary around the substrate is improved. As a result, it is possible to make uniform the transfer shape and transfer amount of the solder paste at the printing start site and end site and the center of the substrate.

図１にスクリーン印刷装置の全体構成の概略を示す。   FIG. 1 shows an outline of the overall configuration of the screen printing apparatus.

本体フレームには図示していない版枠受けが設けられており、版枠受けには印刷パターンを開口部として持つスクリーン２１を張ったマスク２０がセットされるように構成されている。マスク２０の上方には、スキージヘッド２が配置され、スキージヘッド２にはスキージ３が装着されている。スキージヘッド２はスキージ移動機構６により水平方向に移動が可能であり、スキージ３はスキージ昇降機構４によって上下方向に移動できる。マスク２０の下方にはマスクに対向するように印刷対象物である基板２１を載置して保持する印刷テーブル１０が設けて有る。この印刷テーブル１０は、基板２１を水平方向に移動してマスク２０との位置合わせを行うＸＹθテーブル１１と、基板２１を受け取りコンベア２６から受け取り、かつ基板２１をマスク２０面に近付けるか又は接触させるためのテーブル昇降機構１２とを備えている。印刷テーブル１０の上面には基板受け取りコンベア２６が設けられており、基板搬入コンベア２５によって搬入された基板２１を印刷テーブル１０上に受け取り、印刷が終了すると基板搬出コンベア２７に基板２１を排出する。   A plate frame receiver (not shown) is provided on the main body frame, and a mask 20 with a screen 21 having a printing pattern as an opening is set on the plate frame receiver. A squeegee head 2 is disposed above the mask 20, and a squeegee 3 is attached to the squeegee head 2. The squeegee head 2 can be moved in the horizontal direction by the squeegee moving mechanism 6, and the squeegee 3 can be moved in the vertical direction by the squeegee lifting mechanism 4. A printing table 10 is provided below the mask 20 to place and hold a substrate 21 as a printing object so as to face the mask. The printing table 10 receives the substrate 21 from the conveyor 26 and moves the substrate 21 in the horizontal direction to align it with the mask 20, and brings the substrate 21 close to or in contact with the mask 20 surface. And a table elevating mechanism 12 for the purpose. A substrate receiving conveyor 26 is provided on the upper surface of the printing table 10, and the substrate 21 carried by the substrate carrying conveyor 25 is received on the printing table 10, and when printing is completed, the substrate 21 is discharged to the substrate carrying conveyor 27.

全自動スクリーン印刷装置においてはマスク２０と基板２１の位置合わせを自動的に行う機能を備えている。すなわち、ＣＣＤカメラ１５によって、マスク２０と基板２１のそれぞれに設けられている位置合わせ用マークを撮像し、画像処理して位置ずれ量を求めて、そのずれ量を補正するようにＸＹθテーブル制御部３５からの指令に基づきＸＹθテーブル１１を駆動して位置合わせを行うものである。   The fully automatic screen printing apparatus has a function of automatically aligning the mask 20 and the substrate 21. That is, the XYθ table control unit is configured so that the CCD camera 15 captures the alignment marks provided on the mask 20 and the substrate 21 and performs image processing to obtain the positional deviation amount and correct the deviation amount. The XYθ table 11 is driven based on a command from 35 to perform alignment.

なお、各部駆動用の印刷制御部３６やＣＣＤカメラ１５からの画像信号を処理する画像入力部３７等を備えた印刷機制御部３０は、印刷機本体フレームの内部に設けてあり、制御用データの書き換えや、印刷条件の変更等を行うためのデータ入力部５０や、印刷状況等や取込んだ認識マークをモニタするための表示部４０が印刷機の外側に、配置してある。   A printing press control unit 30 including a printing control unit 36 for driving each unit and an image input unit 37 for processing an image signal from the CCD camera 15 is provided inside the printer main body frame, and includes control data. A data input unit 50 for rewriting and changing printing conditions, and a display unit 40 for monitoring the printing status and captured recognition marks are arranged outside the printing press.

はんだペースト又はフラックスを印刷される基板２１は、基板搬入コンベア２５によって基板受け取りコンベア２６に供給され、印刷テーブル１０上の所定の位置に固定される。基板２１を印刷テーブル１０に固定後、予め登録設定された基板マーク位置にＣＣＤカメラ１５を移動する。続いてＣＣＤカメラ１５が基板２１及びマスク２０に設けられた位置認識用マーク（図示せず）を撮像し、印刷機制御部３０に転送する。制御部内の画像入力部３７では、画像データからマスク２０と基板２１の位置ずれ量を求める。その結果に基づいて、印刷機制御部３０はＸＹθテーブル制御部３５から駆動信号をＸＹθテーブル１１に送り、その信号に基づいてＸＹθテーブル１１を動作させてマスク２０に対する基板２１の位置を修正・位置合わせする。位置合わせ動作完了後、ＣＣＤカメラ１５が印刷テーブル１０と干渉しない位置まで所定量退避動作する。カメラ退避完了後、印刷テーブル１０が上昇し、基板２１とマスク２０を接触させる。その後、スキージ昇降シリンダ４によってスキージ３がマスク２０面上に接触するまで下降し、スキージヘッド２の移動によってマスク上に供給されていた、はんだペースト又はフラックスがマスク２０の開口部に充填され、基板に転写される。スキージ３は水平方向に一定距離ストロークした後に上昇する。そして、印刷テーブル１０が下降し、マスク２０と基板２１が離れ、マスク２０の開口部に充填された、はんだペースト又はフラックスが基板２１に転写される。   The board 21 on which the solder paste or flux is printed is supplied to the board receiving conveyor 26 by the board carry-in conveyor 25 and fixed at a predetermined position on the printing table 10. After fixing the substrate 21 to the printing table 10, the CCD camera 15 is moved to a substrate mark position registered and set in advance. Subsequently, the CCD camera 15 takes an image of a position recognition mark (not shown) provided on the substrate 21 and the mask 20 and transfers it to the printing press control unit 30. The image input unit 37 in the control unit obtains the amount of positional deviation between the mask 20 and the substrate 21 from the image data. Based on the result, the printing press control unit 30 sends a drive signal from the XYθ table control unit 35 to the XYθ table 11 and operates the XYθ table 11 based on the signal to correct / position the position of the substrate 21 relative to the mask 20. Match. After the alignment operation is completed, the CCD camera 15 is retracted by a predetermined amount to a position where it does not interfere with the print table 10. After the camera is retracted, the printing table 10 is raised and the substrate 21 and the mask 20 are brought into contact with each other. Thereafter, the squeegee lifting cylinder 4 is lowered until the squeegee 3 comes into contact with the surface of the mask 20, and the solder paste or flux supplied onto the mask by the movement of the squeegee head 2 is filled in the opening of the mask 20. Is transcribed. The squeegee 3 moves up after a certain distance stroke in the horizontal direction. Then, the printing table 10 is lowered, the mask 20 and the substrate 21 are separated, and the solder paste or flux filled in the opening of the mask 20 is transferred to the substrate 21.

そして、はんだペースト又はフラックスが印刷された基板２１は基板搬出コンベア２７を経て次工程に送られる。   And the board | substrate 21 with which solder paste or flux was printed is sent to the following process through the board | substrate carrying-out conveyor 27. FIG.

なお、基板２１とマスク２０には相対的に同一な箇所に認識位置合わせ用マークが２ケ以上設けられており、この双方のマーク各々を、上下方向２視野を有する特殊なＣＣＤカメラ１５により、マスク２０のマークは下から認識し、基板２１のマークは上から認識して、所定の箇所のマーク全ての位置座標を読み取り、マスク２０に対する基板２１のずれ量を位置演算・補正し、基板２１をマスク２０に対して位置合わせする。   The substrate 21 and the mask 20 are provided with two or more recognition positioning marks at the same relatively position, and each of these marks is provided by a special CCD camera 15 having two vertical fields of view. The mark on the mask 20 is recognized from below, the mark on the substrate 21 is recognized from above, the position coordinates of all the marks at predetermined positions are read, the displacement amount of the substrate 21 with respect to the mask 20 is calculated and corrected, and the substrate 21 Is aligned with the mask 20.

図１（ｂ）に示す印刷機制御部３０において、ＣＣＤカメラ１５によって撮像した任意パターンを画像入力部３７より取り込み、任意パターンの周囲に類似パターンが存在していても、辞書３８に予め用意されたモデルと、ＣＣＤカメラ１５によって撮像した任意パターンとの相関値を相関値計算部３１にて演算する。相関値計算部３１によって求められた相関値に基づいて、形状推定部３２にてモデルの形状推定を行う。推定された形状を複数個の仮基準パターンとして記憶設定する。そして、パターン位置座標演算部３３にて、目標基準パターン間距離と比較し、かつ寸法計算部３４で形状寸法を求め、差の最も少ない組み合わせのマークを基準パターンとして辞書３８に登録する手段を備えている。   In the printing press control unit 30 shown in FIG. 1B, an arbitrary pattern captured by the CCD camera 15 is fetched from the image input unit 37, and even if a similar pattern exists around the arbitrary pattern, it is prepared in the dictionary 38 in advance. The correlation value calculation unit 31 calculates a correlation value between the model and the arbitrary pattern imaged by the CCD camera 15. Based on the correlation value obtained by the correlation value calculation unit 31, the shape estimation unit 32 performs shape estimation of the model. The estimated shape is stored and set as a plurality of temporary reference patterns. The pattern position coordinate calculation unit 33 compares with the target reference pattern distance, the dimension calculation unit 34 obtains the shape dimension, and the mark with the smallest difference is registered in the dictionary 38 as a reference pattern. ing.

さらに印刷機制御部３０にはスキージヘッド２等の動作を制御する印刷制御部３６を備えている。   Further, the printing press control unit 30 includes a print control unit 36 that controls the operation of the squeegee head 2 and the like.

次に図２を用いてマスク支持の一実施例を説明する。図２に印刷テーブル部の構造の一例を示す。図の示すように印刷テーブル１０に搭載した印刷対象物である基板２１の周辺部に印刷テーブル１０とは別にマスク２０面を支持するためのマスク面支持部材が設けてある。このマスク面支持部材は、印刷テーブル１０を支持する台座１９に一方側のマスク面支持部材６１が固定され、他方側のマスク面支持部材６０は、基板方向(矢印４１方向)に移動できる構成としてある。即ち固定側のマスク面支持部材６１脚部に設けた駆動用モータ１６により同じく可動側マスク面支持部材６０の脚部を移動するようにボールネジ１７が設けてある。また、可動側マスク面支持部材６０の脚部は台座部４６に設けたリニアレール４５上を摺動できるように図示していないボールベアリングが取り付けてある。固定側マスク面支持部材６１にモータ１６を駆動してボールネジ１７を回転させることで、可動側マスク面支持部材６０を基板２１の他方側の側面に押し付ける構成としてある。なお、固定側マスク面支持部材６１の端部は基板２１の一方側の側面に接触して、位置決めできる構成としてある。このマスク面支持部材のマスク面に接触する部分は所定の面積を有している。また、印刷テーブル１０は負圧（矢印４２）を供給することで基板２１をテーブル面に固定する構成としてある。   Next, an embodiment of mask support will be described with reference to FIG. FIG. 2 shows an example of the structure of the print table unit. As shown in the figure, a mask surface supporting member for supporting the surface of the mask 20 is provided separately from the printing table 10 in the peripheral portion of the substrate 21 which is a printing object mounted on the printing table 10. This mask surface support member has a structure in which a mask surface support member 61 on one side is fixed to a pedestal 19 that supports the printing table 10 and the mask surface support member 60 on the other side can move in the substrate direction (arrow 41 direction). is there. That is, the ball screw 17 is provided so that the leg of the movable mask surface support member 60 is similarly moved by the driving motor 16 provided on the leg portion of the fixed mask surface support member 61. Further, a ball bearing (not shown) is attached to the leg portion of the movable mask surface support member 60 so as to slide on the linear rail 45 provided on the pedestal portion 46. By driving the motor 16 to the fixed side mask surface support member 61 and rotating the ball screw 17, the movable side mask surface support member 60 is pressed against the other side surface of the substrate 21. Note that the end portion of the fixed-side mask surface support member 61 is in contact with one side surface of the substrate 21 and can be positioned. The portion of the mask surface support member that contacts the mask surface has a predetermined area. The printing table 10 is configured to fix the substrate 21 to the table surface by supplying negative pressure (arrow 42).

このように、マスク面が基板面に接触するだけでなく、基板をはずれた周囲をマスク面支持部材６０，６１の上面に接触して支持されるようにすることで、スキージ３が移動時にはマスク２０は基板２１面だけでなくマスク面支持部材６０，６１でも支持され、マスク２０の変形を防止できる。このために微細ピッチのパターンでも位置ずれを起こすことなく、確実に印刷することが可能となる。また、印刷時マスク面は常に基板及びマスク面支持部材に接触しているために、マスク裏面へのはんだペースト又はフラックスが回り込むことがなく、安定した版離れを実現できる。このため、通常は複数回印刷するたびにマスク裏面の清掃が必要であったが、その清掃回数を低減でき、印刷の生産性を向上できる。   In this way, not only the mask surface contacts the substrate surface, but also the periphery around the substrate is supported by contacting the upper surface of the mask surface support members 60 and 61 so that the squeegee 3 moves when the mask moves. 20 is supported not only by the surface of the substrate 21 but also by the mask surface support members 60 and 61, and deformation of the mask 20 can be prevented. For this reason, even a fine pitch pattern can be reliably printed without causing a positional shift. In addition, since the mask surface is always in contact with the substrate and the mask surface support member during printing, the solder paste or flux does not wrap around the mask back surface, and stable plate separation can be realized. For this reason, it is usually necessary to clean the back surface of the mask each time printing is performed a plurality of times. However, the number of cleanings can be reduced, and the productivity of printing can be improved.

次に図３を用いて他の実施例を説明する。図３において図２と異なる点はマスク面支持部材のマスクと接触する部分に複数の吸着孔からなる吸引吸着機構を設けた点である。図２においても印刷テーブル１０には基板２１を固定するために複数の負圧供給孔（吸着孔）を印刷テーブル１０面に設けた構造としてある。本実施例でも、印刷テーブル１０面に負圧供給孔を設けると共に、マスク面支持部材６０，６１のマスク２１面に接触する面に複数の負圧供給孔を設け、そこに負圧を供給することで確実にマスク２１を保持するようにしたものである。これにより、先の実施例より確実にマスク２１を保持できるために、先の実施例でも述べたようにはんだペーストやフラックスのマスク裏面への回り込みを防止できる。又基板周囲のマスクを確実に固定することで、基板周囲の境界部におけるマスクと基板との密着性が向上する。この結果、印刷開始部位、及び終了部位と基板中央部のはんだペーストの転写形状及び転写量の均一化が測れる。   Next, another embodiment will be described with reference to FIG. 3 is different from FIG. 2 in that a suction suction mechanism including a plurality of suction holes is provided in a portion of the mask surface support member that contacts the mask. Also in FIG. 2, the printing table 10 has a structure in which a plurality of negative pressure supply holes (suction holes) are provided on the surface of the printing table 10 in order to fix the substrate 21. Also in the present embodiment, a negative pressure supply hole is provided on the surface of the printing table 10, and a plurality of negative pressure supply holes are provided on the surface of the mask surface support members 60 and 61 that are in contact with the mask 21, thereby supplying negative pressure thereto. Thus, the mask 21 is surely held. Thereby, since the mask 21 can be held more reliably than in the previous embodiment, it is possible to prevent the solder paste or flux from entering the back surface of the mask as described in the previous embodiment. Further, by securely fixing the mask around the substrate, the adhesion between the mask and the substrate at the boundary around the substrate is improved. As a result, it is possible to make uniform the transfer shape and transfer amount of the solder paste at the printing start site and end site and the center of the substrate.

なお、図３ではマスク面保持部材は吸引吸着する構成としたが、使用するマスクが磁性金属で構成されている場合は、マスク面保持部材のマスクと接触する部分に電磁石を配置して、マスク面を保持するときに電磁石を動作させて吸着保持するように構成しても良い。   In FIG. 3, the mask surface holding member is configured to be sucked and adsorbed. However, when the mask to be used is made of a magnetic metal, an electromagnet is disposed on the portion of the mask surface holding member that contacts the mask, and the mask is held. An electromagnet may be operated and held by suction when holding the surface.

スクリーン印刷装置の全体構成を示す図である。It is a figure which shows the whole structure of a screen printing apparatus. マスク支持の一実施例を示す図である。It is a figure which shows one Example of a mask support. マスク支持の他の実施例を示す図である。It is a figure which shows the other Example of mask support.

符号の説明Explanation of symbols

１…スクリーン印刷機、２…スキージヘッド、３…スキージ、４…スキージ昇降機構、６…スキージ移動機構、６０…可動側マスク面支持部材、６１…固定側マスク面保持部材。   DESCRIPTION OF SYMBOLS 1 ... Screen printer, 2 ... Squeegee head, 3 ... Squeegee, 4 ... Squeegee raising / lowering mechanism, 6 ... Squeegee moving mechanism, 60 ... Movable side mask surface support member, 61 ... Fixed side mask surface holding member.

Claims (4)

印刷テーブル上に吸着保持された基板面にマスクを接触させマスク面に設けてある開口部よりスキージにより、はんだペーストあるいはフラックスを押し込み、基板面に転写するスクリーン印刷機において、
前記印刷テーブルに保持された基板の周辺部のマスク面を基板側から保持するマスク面保持部材を設け、マスクを基板面とマスク面保持部材とで保持した状態でスキージをマスク面上を移動させてマスク開口部にはんだペースト又はフラックスを供給する構成としたことを特徴とするスクリーン印刷機。 In a screen printing machine in which a mask is brought into contact with a substrate surface sucked and held on a printing table, a solder paste or flux is pushed in from an opening provided on the mask surface, and transferred to the substrate surface.
A mask surface holding member for holding the mask surface of the peripheral portion of the substrate held on the printing table from the substrate side is provided, and the squeegee is moved on the mask surface with the mask held by the substrate surface and the mask surface holding member. A screen printing machine characterized in that a solder paste or flux is supplied to the mask opening. 請求項１に記載のスクリーン印刷機において、
前記マスク面保持部材は基板の一端側は固定されたマスク面保持部材であり、他端側は、基板側に移動可能なマスク面保持部材から構成されていることを特徴とするスクリーン印刷機。 The screen printing machine according to claim 1, wherein
The screen printing machine is characterized in that the mask surface holding member is a mask surface holding member fixed on one end side of the substrate, and the mask surface holding member movable on the other side on the other side. 請求項２記載のスクリーン印刷機において、
前記マスク面保持部材のマスクと接触する面に複数の吸着孔を備え、前記吸着孔に負圧を供給することでマスクを吸着保持する構成としたことを特徴とするスクリーン印刷機。 The screen printing machine according to claim 2, wherein
A screen printing machine comprising a plurality of suction holes on a surface of the mask surface holding member that comes into contact with the mask and configured to suck and hold the mask by supplying a negative pressure to the suction holes. 請求項２記載のスクリーン印刷機において、
前記マスクを磁性体の金属で構成し、前記マスク面保持部材のマスクと接触する部分に電磁石を配置してマスクを保持するときに電磁石を動作させて吸着保持することを特徴とするスクリーン印刷機。 The screen printing machine according to claim 2, wherein
A screen printing machine characterized in that the mask is made of a metal metal, and an electromagnet is disposed at a portion of the mask surface holding member that comes into contact with the mask to hold the mask by operating the electromagnet. .
JP2007323019A 2007-12-14 2007-12-14 Screen printing machine Pending JP2009143110A (en)

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CNA2008101855247A CN101456278A (en) 2007-12-14 2008-12-12 Screen printer

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CN111492724A (en) * 2018-01-15 2020-08-04 株式会社富士 Supporting block and screen printing machine
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CN113147163A (en) * 2021-04-30 2021-07-23 广州诚鼎机器人有限公司 Stock and oval calico printing machine

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