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JP3714532B2 - Surface treatment equipment - Google Patents
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JP3714532B2 - Surface treatment equipment - Google Patents

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Publication number
JP3714532B2
JP3714532B2 JP2001084870A JP2001084870A JP3714532B2 JP 3714532 B2 JP3714532 B2 JP 3714532B2 JP 2001084870 A JP2001084870 A JP 2001084870A JP 2001084870 A JP2001084870 A JP 2001084870A JP 3714532 B2 JP3714532 B2 JP 3714532B2
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Japan
Prior art keywords
flat plate
surface treatment
shaped object
conveyance
vertically suspended
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JP2001084870A
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Japanese (ja)
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JP2002285398A (en
Inventor
益次郎 五百部
文夫 安齋
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株式会社アルメックス
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Priority to JP2001084870A priority Critical patent/JP3714532B2/en
Priority to KR10-2001-0022267A priority patent/KR100407730B1/en
Priority to CNB011212381A priority patent/CN1187244C/en
Publication of JP2002285398A publication Critical patent/JP2002285398A/en
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/06Suspending or supporting devices for articles to be coated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/02Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid
    • B65G49/04Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating Apparatus (AREA)
  • Electroplating Methods And Accessories (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、縦吊姿態で保持された平板形状物を昇降手段によって下降させつつ表面処理槽内の液中に浸漬可能かつ搬送手段によって平板形状物を搬送方向に搬送可能であるとともに表面処理槽内を搬送中の平板形状物に表面処理を施す表面処理装置に関する。
【0002】
【背景技術】
被処理物の表面処理方法には、列配された各処理槽を順番に搬送可能としておき、被処理物を最初の処理槽内に浸漬して所定時間だけ当該処理を施し、処理後に当該被処理物を引き上げかつ次の処理槽へ搬送し、次の処理槽で所定時間だけ当該処理を施す。以下、同様な手順を繰り返すバッチ方式と、搬送方向に長い処理槽内に被処理物を浸漬し、被処理物の浸漬状態を維持しかつ連続的に搬送しつつ処理する連続方式とがある。
【0003】
例えば、被処理物が平板形状物である連続方式の表面処理装置では、平板形状物を直接または間接的に搬送手段に縦吊姿態として取り付ける。平板形状物の各面を、搬送路つまりは搬送方向と平行となる姿態として、取り付ける。
【0004】
ここで、搬送手段を駆動すると、各平板形状物は縦吊姿態を維持されつつ搬送路に沿った搬送方向に連続的に搬送される。そして、表面処理槽内の搬送(移行)中に給電手段から各平板形状物に給電される。したがって、各平板形状物の表面処理条件を均一とすることがでるから、バラツキのない高品質の表面処理を施すことができる。
【0005】
しかし、平板形状物(例えば、プリント配線基板…ワークW)の厚み(面間寸法)が薄いものでは、搬送速度にもよるが、例えば図9に示す表面処理槽10内の処理液Q中を搬送する際に、例えば2点鎖線で示したように平板形状物(W)が搬送方向(図9で紙面垂直方向)と直交する方向(左右方向)に湾曲,折れが生じ、さらには揺動や振動が発生する場合がある。
【0006】
これでは、処理槽10内での電極間距離が変動してしまうので品質劣悪化を免れない。さらには、処理槽内装部材との衝突により平板形状物の破損や内装部材自体の変形等を発生させる虞がある。
【0007】
そこで、本出願人は、図7,図8に示すように、処理槽10内で搬送路Rの両側に上下方向に離隔されかつ搬送(X)方向に伸びる状態でガイドポスト81に張設された複数のワイヤー(搬送ガイド)82を有する搬送ガイド手段80を設けた装置を提案(例えば、特願2000−38682号)している。
【0008】
これによれば、ワイヤー(搬送ガイド)82,82間の間隔Dg(例えば、16mm)内で平板形状物(ワークW)の自由運動を規制しかつ当該平板形状物(W)の縦吊姿態を維持しつつ搬送路Rに沿って搬送案内することができるので、平板形状物(W)を安定かつ円滑に搬送することができた。つまりは、高品質処理を行える。
【0009】
上記バッチ方式および連続方式のいずれの場合でも、処理槽10外から処理槽内液Q中に平板形状物(W)を浸漬しなければならず、処理終了後は処理槽10内液Q中から処理槽10外へ平板形状物(W)を取出さなければならない。
【0010】
具体的には、昇降手段を用いて高所(大気中)から下降させて最初の処理槽10内の液Q中に平板形状物を浸漬可能でかつ表面処理終了後は昇降手段を用いて最後の処理槽10内の液Q中から高所(大気中)に平板形状物を上昇して取出可能に形成されている。
【0011】
【発明が解決しようとする課題】
ところで、平板形状物(ワークW)を処理槽10に浸漬する際および処理槽10から引上げる際の昇降速度は、処理槽10内搬送中での表面処理の連続性を担保するために、平板形状物(例えば、プリント配線基板…ワークW)の処理槽10内での搬送速度に比較して高速(例えば、4倍速)である。
【0012】
かくして、浸漬に際する下降工程では、平板形状物(W)の先端部分(縦吊姿態での下端部分)Waが大きな液抵抗を受けるので、例えば図9に実線で示す如く平板形状物(W)がX方向と直交する方向に湾曲,折れ曲りあるいは揺動してしまい、結果として、平板形状物(W)が槽内装品(例えば、上記ガイドポスト81,図示しない電極等)に衝突したり、張り付いてしまう場合がある。
【0013】
また、平板形状物(W)をいきなり搬送ガイド82,82間内(搬送路R)に下降可能に構築されている装置の場合には、平板形状物(W)の先端部分(縦吊姿態での下端部分)Waが搬送ガイド間82,82(81,81)内に入らないので、搬送が開始できない。
【0014】
本発明の目的は、処理槽内に浸漬する際の先端曲り等を防止しつつ平板形状物を縦吊姿態のまま真直ぐに処理槽内液中に下降させることができる表面処理装置を提供することにある。
【0015】
【課題を解決するための手段】
請求項1の発明は、縦吊姿態で保持された平板形状物を昇降手段によって下降させつつ表面処理槽内の液中に浸漬可能かつ搬送手段によって平板形状物を搬送方向に搬送可能であるとともに表面処理槽内を搬送中の平板形状物に表面処理を施す表面処理装置において、前記縦吊姿態で保持された前記平板形状物を前記昇降手段によって下降させつつ表面処理槽内の液中に浸漬するに先立ち当該平板形状物の前記搬送方向と交叉する方向の両側から挟持片を接近させて当該平板形状物の縦吊姿態を維持するために当該平板形状物を挟持可能であるとともに当該平板形状物の前記表面処理槽内の液中に浸漬が終了したときから当該平板形状物の前記搬送方向への搬送開始までの間に両側の挟持片を当該平板形状物から離隔可能に形成された縦吊姿態維持手段を設けた、表面処理装置である。
【0016】
かかる発明では、例えばハンガーを介して搬送手段に縦吊姿態で保持された平板形状物を昇降手段によって下降させて表面処理槽内の液中に浸漬させるに先立ち、縦吊姿態維持手段を働かせる。
【0017】
すなわち、平板形状物の搬送方向と交叉する方向の両側から挟持片を接近させて、当該平板形状物を挟持させる。これにより、平板形状物の縦吊姿態を一定に維持できる。この状態において、昇降手段を下降動作させれば、平板形状物を縦吊姿態を維持したそのままの姿勢で下降させつつ、表面処理槽内の液中に確実かつ安定して浸漬させることができる。つまり、平板形状物を処理槽内へ浸漬する際の当該平板形状物の先端曲り等を防止しつつ平板形状物を縦吊姿態のまま真直ぐに処理槽内液中に下降させることができる。
【0018】
逆に、表面処理槽内の液中に浸漬が終了したときから当該平板形状物の搬送方向への搬送開始までの間に、縦吊姿態維持手段を逆(上昇)動作させて、両側の挟持片を当該平板形状物から離隔させる。かくして、平板形状物を搬送方向に円滑に搬送することができる。
【0019】
すなわち、処理槽内へ浸漬する際の先端曲り等を防止しつつ平板形状物を縦吊姿態のまま真直ぐに処理槽内液中に下降させることができるから、平板形状物が槽内装品に衝突したり、それらに張り付いてしまうことを防止することができかつ迅速に搬送して表面処理を行える。
【0020】
また、請求項2の発明は、前記縦吊姿態維持手段が、前記上下方向に伸びかつ複数の前記挟持片が上下方向に離隔した状態でかつそれぞれ内側に向かう姿勢で取付けられた一対の可動部材と、一対の可動部材を前記搬送方向と交叉する方向に離隔駆動可能および接近駆動可能な離隔接近駆動機構とから形成された表面処理装置である。
【0021】
かかる発明では、縦吊姿態維持手段を構成する離隔接近駆動機構を接近駆動させると、上下方向に伸びる形態の一対の可動部材が搬送方向と交叉する方向に接近する。すると、各可動部材に上下方向に離隔した状態でかつそれぞれ内側に向かう姿勢で取付けられた複数の挟持片が、平板形状物(面)を搬送方向と交叉する方向の両側から挟み込むことができる。したがって、平板形状物(面)の全面的な縦吊姿態を維持することができる。
【0022】
また、離隔接近駆動機構を離隔駆動させると、上下方向に伸びる形態の一対の可動部材が搬送方向と交叉する方向に離隔する。すると、各可動部材に上下方向に離隔した状態でかつそれぞれ内側に向かう姿勢で取付けられた複数の挟持片が、平板形状物(面)から搬送方向と交叉する方向の両側へ逃げる。つまり、平板形状物(面)の搬送方向への搬送を許容できる。
【0023】
したがって、請求項1の発明の場合と同様な作用効果を奏することができることに加え、さらに平板形状物(面)の姿勢を全面的かつ自動的に維持することできるとともに迅速な接近離隔駆動を行える。
【0024】
また、請求項3の発明は、前記挟持片が、前記可動部材に突出させた状態で取付けられた表面処理装置である。
【0025】
かかる発明では、各挟持片のそれぞれが、当該各可動部材に突出させた状態で取付けられている。かくして、各挟持片に挟持された平板形状物(面)は当該各可動部材に接触させない状態に保てる。つまり、各挟持片とこれに挟持された平板形状物(面)との間にスペースを確立(確保)できる。
【0026】
したがって、例えば今回の平板形状物(面)の大きさ(上下方向寸法)が基本の平板形状物(面)の大きさ(上下方向寸法)より小さい場合には、当該平板形状物(面)の下端部を下方の挟持片で挟持できないから、液中への下降の際にその下端部が曲がってしまう虞が強い。しかし、下端部が曲がってしまったとしても、当該曲がり部分を上記スペース内に収容できので、平板形状物(面)の下端部が当該各可動部材に張り付いたり、当該各可動部材の外側に巻き付いたりすることを回避できる。
【0027】
よって、請求項1および請求項2の各発明の場合と同様な作用効果を奏することができることに加え、さらに平板形状物(面)の大きさ(上下方向寸法)に対する適応性が広く、平板形状物(面)の表面品位を良好に担保できる。
【0028】
さらに、請求項4の発明は、前記挟持片が、前記搬送方向に伸びる細長形状とされるとともに前記搬送方向の上流側位置が高くかつ下流側位置が低くなる傾斜姿勢で前記可動部材に取付けられた表面処理装置である。
【0029】
かかる発明では、可動部材を接近させると、搬送方向に伸びる細長形状の各挟持片が縦吊姿態の平板形状物(面)をその両側から挟持することができる。各挟持片は搬送方向の上流側位置が高くかつ下流側位置が低くなる傾斜姿勢で可動部材に取付けられているから、液外(液内)においては、平板形状物(面)を同一水平線上で挟持することを回避できる。
【0030】
また、液中においては、各挟持片を離隔しかつその後に平板形状物(面)を搬送方向に搬送する際に、平板形状物(面)の湾曲等した下端部がある挟持片の上に乗ってしまうことがあったとしても、下端部が下流側に行くにしたがって当該挟持片から逃げ(離れ)ることができるので、当該下端部が挟持片に噛み込んでしまうことがない。
【0031】
したがって、請求項1から請求項3までの各発明の場合と同様な作用効果を奏することができることに加え、さらに平板形状物(面)を確実に挟持できかつ平板形状物(面)円滑な搬送を担保できる。
【0032】
さらにまた、請求項5の発明は、前記離隔接近駆動機構が、一端部に前記可動部材が回動可能に連結されかつ他端部が駆動源に連結されるとともに中央支点を中心に回動可能なリンクを含むリンク機構から形成された表面処理装置である。
【0033】
かかる発明では、他端部に連結された駆動源を離隔駆動させることにより、リンク機構(リンク)を中央支点を中心に離隔方向に回動させることができる。すると、リンクの一端部に回動可能に連結された可動部材が、平板形状物(面)から離隔する方向に移動する。つまり、各挟持片を平板形状物(面)から離隔させて挟持開放させられる。
【0034】
一方、リンクの他端部に連結された駆動源を接近駆動させることにより、リンクを中央支点を中心に接近方向に回動させると、その一端部に回動可能に連結された可動部材が、平板形状物(面)に接近する方向に移動する。つまり、各挟持片で平板形状物(面)を両側から接近挟持させられる。
【0035】
なお、リンク(リンク機構)が中央支点を中心に回動させた場合に、可動部材つまり各挟持片が上方(下方)から下方(上方)に変位しつつ円軌跡に沿って平板形状物(面)に離隔・接近するので、各挟持片を平板形状物(面)に向って直角方向から離隔・接近させる場合に比較して、各挟持片を平板形状物(面)にソフトタッチさせることができかつ離隔接近駆動機構の構造も簡単である。
【0036】
したがって、請求項2から請求項4までの各発明の場合と同様な作用効果を奏することができることに加え、さらに円滑な挟持ができるとともに離隔接近駆動機構の構造簡素化およびコスト低減を図れる。
【0037】
【発明の実施の形態】
以下、本発明の実施の形態について、図面を参照して詳細に説明する。
【0038】
本表面処理装置は、図1〜図4に示す如く、表面処理槽(10A,10B)に関連配設可能な縦吊姿態維持手段50を設け、縦吊姿態で保持された平板形状物(ワークW)を昇降手段30によって下降させつつ表面処理槽(10A,10B)内の液Q中に浸漬するに先立ち当該ワークWのX方向と交叉する方向の両側から挟持片57,57を接近させてその縦吊姿態を維持するためにワークWを挟持可能かつワークWの表面処理槽(10A,10B)内の液Q中に浸漬が終了したときからワークWのX方向への搬送開始までの間に両側の挟持片57,57を当該ワークWから離隔可能に形成されている。
【0039】
本表面処理装置の基本的構成・機能は、縦吊姿態で保持された平板形状物(この実施形態では、プリント配線基板…上記のワークW)を昇降手段30によって下降させつつ表面処理槽(10A,10B)内の液中に浸漬可能かつ搬送手段20によってワークWをX方向に搬送可能であるとともに表面処理槽10(10A,10B)内を搬送中のワークWに表面処理を施すことができる。つまり、本表面処理装置は、プリント配線基板にめっきを施すことができるめっき処理装置を構成する。
【0040】
図1において、図示省略した左方から右方に直線で伸び、右端で円弧で折り返し、右方から左方に直線で伸び、図示省略した左端で円弧で折り返す軌跡(形状)の搬送路Rに沿って複数の表面処理槽10が配設されている。ワークWは、搬送路Rに沿った搬送(X)方向に搬送される。
【0041】
ここに、手前側の前処理槽(例えば、酸性脱脂処理槽)の始端部(図で左側)でワークWを投入して当該液Q中に浸漬させるので、当該槽を浸漬投入槽10Aとする。この浸漬投入槽10A内の液中をX方向に搬送されたワークWは、液シール部(図示省略)を通過して、そのまま右側の折り返し部に配設された表面処理槽(例えば、水洗処理槽)10内を搬送され、終端部で当該表面処理槽10から上方に持ち出させる。
【0042】
次いで、表面処理槽(例えば、電解銅めっき処理槽)の始端部(図で右側)でワークWを再び投入して当該液Q中に浸漬させる。当該槽を浸漬投入槽10Bとする。かくして、各浸漬投入槽10A,10Bに、縦吊姿態維持手段50を設けてある。
【0043】
図2において、搬送手段20は、X方向に伸びる搬送ガイド部材21,搬送モータ24によりX方向に所定ピッチだけ搬送ガイド部材21上を進退動(往復動)する往復動部材22と,この往復動部材22に装着されたアンチバック方式のプッシャー23を含み、ハンガー40(非プッシュ部46)をハンガーガイド部材25に沿って所定ピッチづつピッチ送り(間欠搬送…連続的搬送の一態様)することができるプッシャー型搬送手段を構成する。
【0044】
昇降手段30は、図2,図4に示す如く、昇降体(リフト)31,昇降機構(チェーン,スプロケット等)33,昇降モータ34等を含み、上下方向に移動可能に装着された昇降体(リフト)31を昇降させることにより、ハンガーガイド部材25を図3の左側の上昇位置から右側の下降位置に昇降可能に形成されている。
【0045】
昇降体31は、図3の横架部材37とともに装置機構部を構成する支柱部材を兼ねるガイド支柱35(詳しくは、平行取付されたガイドバー36)に、複数のローラ31Rを介して上下動可能に装着されている。
【0046】
この昇降体31には、図4に示す如く、腕木部材32が一体的に設けられかつ腕木部材32にはハンガー40を保持するための保持部32Aが一体的に設けられている。そして、この保持部32Aには、上方に支持ローラ32Bが設けられ、下方にハンガーガイド部材25が取付けられている。
【0047】
ハンガー40は、図4に示すハンガー本体43と,このハンガー本体43の上部側に装着された被保持部44および非プッシュ部46と,その下部側に取付けられたクランプ45とを含み、腕木部材32の先端側に取付けられた保持部32A(32B)に腕木部材32(昇降体31)の昇降運動とともに昇降可能に保持されかつクランプ45で平板形状物(W)を縦吊姿態として挟持可能に形成されている。
【0048】
X方向に離隔して保持された複数のハンガー40は、搬送手段20を構成しかつ図2に示すX方向に伸びるハンガーガイド部材25上を複数のプッシャー23の各1ピッチ同期送り動作により、連続的に搬送(X方向に間欠かつピッチ搬送)される。この際は、図4のC型形状の被保持部44が、昇降体31(腕木部材32)と一体的な支持ローラ32Bから離れる。つまり、上昇手段30との係合が解除される。
【0049】
また、電解銅めっき処理槽(10B)においては、給電手段(図示省略)からハンガー40を通して当該ハンガー40にクランプ保持されたワークWに給電することができる。電解銅めっき処理槽(10B)内の電極(図示省略)にも、対向極性が給電される。
【0050】
ここにおいて、縦吊姿態維持手段50は、図4に示す如く、枠体51,可動部材55,挟持片57,離隔接近駆動機構60および駆動源(駆動シリンダ68)とを含み、ハンガー40に縦吊姿態で保持された平板形状物(W)を昇降手段30によって下降させつつ浸漬投入槽(10A,10B)内の液Q中に浸漬するに先立ち、ワークWのX方向と交叉する方向の両側から挟持片57,57を接近させてワークWの縦吊姿態を維持するためにワークWを挟持可能である。図6(A)〜(C)に示す接近状態(挟持状態)を参照。
【0051】
また、縦吊姿態維持手段50は、浸漬投入槽(10A,10B)内の液Q中へのワークW浸漬が終了したときから当該ワークWのX方向への搬送開始までの間に、両側(左右)の挟持片57,57を当該ワークWから離隔可能に形成されている。図5(A)〜(C)に示す離隔状態(挟持開放状態)を参照。
【0052】
枠体51は、図4に示す左右一対の支柱部材52からなり、横木部材72を介して、上下動装置70の一部を構成するリフター71の上下運動とともに上下動可能としてリフター71に取り付けられている。このリフター71は、ガイド支柱(摺動ガイドが敷設されている。)35に摺動可能にガイドされ、上下動機構73により上下動される。
【0053】
この実施形態では、上下動機構73を駆動させるための動力源(上下動モータ)は昇降手段30の昇降モータ34を兼用するものと形成してある。
【0054】
なお、枠体51も、昇降手段30で、昇降(上下)させるように構築してもよい。かくすれば、上下動装置70を、例えばめっき槽レールの上下用(専用)として利用できる。
【0055】
左右一対の可動部材55,55は、離隔接近駆動機構60を介しかつX方向と交叉する方向[この実施形態では、直交する方向(図4で左右方向)]に離隔接近駆動可能として、当該各支柱部材52,52に取付けられている。各可動部材55には、この実施形態ではスペースSを確保(確立)するための突出保持部材56,56を介して、複数の挟持片57,57が取付けられている(図5,図6を参照)。
【0056】
この離隔接近駆動機構60は、図4に示す左右1対のリンク機構61(リンク63を含む)および駆動源を形成する駆動シリンダ68とから構成されている。
【0057】
リンク機構61は、中間部が上方支持ピン62を介して支柱部材52に回転可能に連結された上方リンク(リンク)63を含み、この上方リンク63の一端部63Aを可動部材55の上端部に連結ピン63APを介して回転可能に連結しかつ他端部63Bを駆動シリンダ68に回転可能に連結した構造である。
【0058】
なお、動作安定性を向上させるために、基端部が下方支持ピン65を介して支柱部材52に回転可能に連結されかつその一端部66Aが可動部材55の下端部に連結ピン66APを介して回転可能に連結された下方リンク66を設けてある。つまり、リンク機構61は、平行四辺形リンク機構の場合の動作と同様に動作する。
【0059】
かくして、図4の左側に示した接近状態(挟持状態)において、左側の駆動シリンダ(駆動源)68で他端部63Bを下方に向けて押込めば、上方リンク63が上方支持ピン62を中心に左廻りに回転するので、一端部63Aに連結された可動部材55を上昇させつつ図4で左方向へ移動させることができる。つまり、複数の挟持片57をワークWから離隔させることができる。なお、下方リンク66は、上方リンク63に従動する。
【0060】
したがって、図5に示す如く、左右の駆動シリンダ(駆動源)68,68を同時に離隔方向(下方向)に動作させれば、左右の可動部材55,55に取付けられた複数の挟持片57,57を同時にワークWから離隔(挟持開放)させることができる。
【0061】
すなわち、挟持片57,57間から表面処理終了後のワークWを取出することができ、あるいは新規(未処理)のワークWを挟持片57,57間に挿入することができる。
【0062】
一方、図4の右側に示した離隔状態(挟持開放状態)において、右側の駆動シリンダ(駆動源)68で他端部63Bを上方に向けて持ち上げれば、上方リンク63が上方支持ピン62を中心に左廻りに回転するので、一端部63Aに連結された可動部材55を下降させつつ図4で左方向へ移動させることができる。つまり、複数の挟持片57をワークWに接近させることができる。この場合も、下方リンク66は上方リンク63に従動する。
【0063】
したがって、図6に示す如く、左右の駆動シリンダ(駆動源)68,68を同時に接近方向(上方向)に動作させれば、左右の可動部材55,55に取付けられた複数の挟持片57,57で同時にワークWを挟持(接近)させることができるから、その後にワークWを下降させて表面処理槽10内の液Q中に浸漬させても当該ワークWの曲り発生を防止することができる。
【0064】
そして、各挟持片57が、突出保持部材56を介して可動部材55に突出させた状態でかつ上下方向に離隔配設した状態で取付けられている。したがって、平板形状物(面)の大きさ(上下方向寸法)に対する適応性を広く、平板形状物(面)の表面品位を良好に担保することができる。
【0065】
しかも、最下の挟持片57で挟持することができない平板形状物(面)の下端部[あるいは、平板形状物(面)の一部(上下方向の挟持片57,57間の部位)]が曲がったとしても、曲り部が突出した突出保持部材56と可動部材55との間に確立されたスペースS内に収容されるので、当該曲り部が可動部材55に直接貼付いてしまうことを防止することができるわけである。
【0066】
さらに、各挟持片57が搬送(X)方向に伸びる細長形状とされるとともにX方向の上流側位置が高くかつ下流側位置が低くなる傾斜姿勢で可動部材55に取付けてある。
【0067】
かくして、仮に、最下の挟持片57で挟持することができない平板形状物(面)の下端部が曲がりかつ当該曲り部がある1つの挟持片57の上に乗ってしまった場合が生じても、その後に平板形状物(面)をX方向に移動させたときに、当該曲り部が下方に傾く挟持片57から上方に自動的に離れることができる。換言すれば、平板形状物(面)のX方向の移動に伴って一段と強力に噛み込み(乗り上げ)しないようにすることができる。つまり、平板形状物(面)の一段と円滑な搬送を担保可能に形成されている。
【0068】
かかる実施形態の表面処理装置では、図1に示す浸漬投入槽10Aの始端部の上方において、縦吊姿態で保持されたワークWを昇降手段30によって下降させて当該表面処理槽10A内の液中に浸漬させるに先立ち、縦吊姿態維持手段50の離隔接近駆動機構60を離隔駆動して可動部材55,55を図5に示す離隔状態にしておく。
【0069】
この可動部材55,55間に、ローディング装置(図示省略)からローディングされかつ昇降手段30(保持部32A…支持ローラ32B)に保持されたハンガー40を図3の左側に示した状態で保持させる。ハンガー40には、ワークWが縦吊姿態で保持されている。
【0070】
ここで、離隔接近駆動機構60を接近駆動させて各可動部材55,55を図6に示すように接近させる。つまり、対応する複数の挟持片57でワークWをその両面から挟持することができる。つまり、ワークWの自由運動を規制できかつ縦吊姿態を一定に維持できる。
【0071】
しかる後に、昇降手段30と上下動装置70を同期運転させ、ハンガー40を腕木部材32とともに下降させかつ枠体51をリフター71(横木部材72)とともに下方に移動させる。つまり、上下関係を図3の左側に示した状態から右側に示した状態に移行させる。この意味において、上記したように、枠体51も昇降手段30によって昇降(上下)可能に構築してもよいと理解される。
【0072】
この際、薄いワークWが浸漬投入槽10A内の液Q中に比較的に高速で移行されるが、縦吊姿態維持手段50の縦吊姿態維持機能により、ワークWの液抵抗による例えば図9に2点鎖線で示したような曲り等が生じない。したがって、表面処理槽10A内の液中に確実かつ安定して浸漬させることができるから、ワークWが槽内装品(例えば、液加熱ユニット等)に干渉することを防止することができるわけである。
【0073】
浸漬後で当該ワークWのX方向への搬送開始までの間に、離隔接近駆動機構60を離隔駆動させて、各可動部材55,55を図5に示すように離隔させる。つまり、対応する複数の挟持片57をワークWから離隔させて、その両面から挟持を開放する。ワークWの自由運動を許容できる。
【0074】
その後に、搬送手段20を働かせてハンガー40をX方向に1ピッチ分だけ搬送(進動)せる。この際、ハンガー40の非保持部44は、昇降手段30(腕木部材32)側の保持部32AからX方向に離れる。
【0075】
したがって、昇降手段30および上下動装置70を同期運転させ、腕木部材32を上昇させかつ枠体51をリフター71(横木部材72)とともに上方に移動させる。つまり、上下関係を図3の右側に示した状態からその左側に示した状態に移行させる。
【0076】
かくして、搬送手段20を働かせて、ハンガー40をX方向にピッチ搬送しつつ表面処理槽(酸性脱脂処理槽…10A)でワークWの両面を酸性脱脂処理することができる。搬送速度が浸漬中の下降速度に比較して低速であるとともに、上部が複数のクランプ45を介してハンガー40に保持された状態でかつX方向で最先のクランプ45の方向にワークWが引っ張られる状態で、ワークWが曲がったり折れたりすることはない。
【0077】
このワークWは、次の処理槽10の終端部まで搬送され、そこで昇降手段30の下降動作、搬送手段20の1ピッチ搬送動作および昇降手段30の上昇動作により当該処理槽10の上方に持ち出される。その後に、図示しない例えば引渡手段で浸漬投入槽10B上へ引き渡される。
【0078】
そして、浸漬投入槽(電解銅めっき処理槽)10Bにおいて、浸漬投入槽10Aの場合と同様に浸漬される。この槽10B内には搬送ガイド手段80が設けられているが、ワークWが縦吊姿態維持手段50の縦吊姿態維持機能により縦吊姿態が維持されているので、その搬送ガイド81,81(82,82)間に円滑に導入することができる。
【0079】
また、搬送ガイド手段80内を搬送中のワークWは自由運動が規制されているので槽内両側に配設された電極との間隔つまり極間距離を一定に保てるから安定した電解(めっき)処理を行える。すなわち、高品質のプリント配線基板を確実かつ高能率で生産することができ、歩留まりも大幅に向上できる。
【0080】
【発明の効果】
請求項1の発明によれば、平板形状物を下降させて表面処理槽内の液中に浸漬するに先立ち当該平板形状物の搬送方向と交叉する方向の両側から挟持片を接近させて挟持可能で、表面処理槽内の液中に浸漬が終了したときから当該平板形状物の搬送方向への搬送開始までの間に両側の挟持片を平板形状物から離隔可能に形成された縦吊姿態維持手段を設た表面処理装置であるから、処理槽内へ浸漬する際の先端曲り等を防止しつつ平板形状物を縦吊姿態のまま真直ぐに処理槽内液中に下降させることができる。よって、平板形状物が槽内装品に衝突したり、それらに張り付いてしまうことを防止することができかつ迅速に搬送して表面処理を行える。
【0081】
また、請求項2の発明によれば、縦吊姿態維持手段が上下方向に伸びかつ複数の挟持片が上下方向に離隔した状態でかつそれぞれ内側に向かう姿勢で取付けられた一対の可動部材と、一対の可動部材を搬送方向と交叉する方向に離隔駆動可能および接近駆動可能な離隔接近駆動機構とから形成されているので、請求項1の発明の場合と同様な効果を奏することができることに加え、さらに平板形状物(面)の姿勢を全面的かつ自動的に維持することできるとともに迅速な接近離隔駆動を行える。
【0082】
また、請求項3の発明によれば、挟持片が可動部材に突出させた状態で取付けられているので、請求項1および請求項2の各発明の場合と同様な効果を奏することができることに加え、さらに平板形状物(面)の大きさ(上下方向寸法)に対する適応性が広く、平板形状物(面)の表面品位を良好に担保できる。
【0083】
さらに、請求項4の発明によれば、挟持片が搬送方向に伸びる細長形状とされるとともに搬送方向の上流側位置が高くかつ下流側位置が低くなる傾斜姿勢で可動部材に取付けられているので、請求項1から請求項3までの各発明の場合と同様な効果を奏することができることに加え、さらに平板形状物(面)を確実に挟持できかつ平板形状物(面)円滑な搬送を担保できる。
【0084】
さらにまた、請求項5によれば、離隔接近駆動機構が一端部に可動部材が回動可能に連結されかつ他端部が駆動源に連結されるとともに中央支点を中心に回動可能なリンクを含むリンク機構から形成されているので、請求項2から請求項4までの各発明の場合と同様な効果を奏することができることに加え、さらに円滑な挟持ができるとともに離隔接近駆動機構の構造簡素化およびコスト低減を図れる。
【図面の簡単な説明】
【図1】本発明の実施の形態に係るめっき処理装置を説明するための平面図である。
【図2】同じく、図1の矢視線▲2▼−▲2▼に基づく側面図である。
【図3】同じく、図1の矢視線▲3▼−▲3▼に基づく正面図である。
【図4】同じく、縦吊姿態維持手段(離隔接近駆動機構)を説明するための拡大図である。
【図5】同じく、縦吊姿態維持手段(離隔接近駆動機構)の接近(挟持)状態を説明するための図である。
【図6】同じく、縦吊姿態維持手段(離隔接近駆動機構)の離隔(挟持開放)状態を説明するための図である。
【図7】本発明および従来例における搬送ガイド手段を説明するための平面図である。
【図8】本発明および従来例における搬送ガイド手段を説明するための側面図である。
【図9】従来例の問題点を説明するための正面図である。
【符号の説明】
10 表面処理槽
10A 浸漬投入槽(表面処理槽)
10B 浸漬投入槽(表面処理槽)
20 搬送手段
21 搬送ガイド部材
22 往復動部材
23 プッシャー
25 ハンガーガイド部材
30 昇降手段
31 昇降体
32 腕木部材
32A 保持部
33 昇降機構
34 昇降モータ
35 ガイド支柱
37 横架部材
40 ハンガー
44 被保持部
50 縦吊姿態維持手段
51 枠体
52 支柱部材
55 可動部材
56 突出保持部材
57 挟持片
60 離隔接近駆動機構
61 リンク機構
62 上方支持ピン(中央支点)
63 上方リンク(リンク)
65下方支持ピン
66 下方リンク
68 駆動シリンダ(駆動源)
70 上下動装置
72 横木部材
73 上下動機構
80 搬送ガイド手段
81 ガイドポスト
82 ワイヤー(搬送ガイド)
W ワーク(平板形状材物…プリント配線基板)
Wa 先端部
R 搬送路
X 搬送方向
[0001]
BACKGROUND OF THE INVENTION
The present invention is capable of immersing in a liquid in a surface treatment tank while lowering a flat plate-shaped object held in a vertically suspended state by a lifting / lowering means, and can convey the flat plate-shaped object in a conveyance direction by a conveyance means and a surface treatment tank The present invention relates to a surface treatment apparatus for performing a surface treatment on a flat plate-shaped object being conveyed inside.
[0002]
[Background]
In the surface treatment method of an object to be processed, the processing tanks arranged in a row can be transported in order, the object to be processed is immersed in the first processing tank, and the treatment is performed for a predetermined time. The processed product is pulled up and conveyed to the next processing tank, and the processing is performed for a predetermined time in the next processing tank. Hereinafter, there are a batch method in which similar procedures are repeated, and a continuous method in which an object to be processed is immersed in a processing tank that is long in the conveying direction, and the object to be processed is maintained in an immersion state and continuously conveyed.
[0003]
For example, in a continuous surface treatment apparatus in which the object to be processed is a flat plate-like object, the flat plate-like object is directly or indirectly attached to the conveying means as a vertically suspended figure. Each surface of the flat plate-like object is attached in a form that is parallel to the conveyance path, that is, the conveyance direction.
[0004]
Here, when the conveying means is driven, each flat plate-like object is continuously conveyed in the conveying direction along the conveying path while maintaining the vertically suspended state. And it supplies with electricity to each flat plate-shaped object from an electric power feeding means during conveyance (transition) in a surface treatment tank. Therefore, since the surface treatment conditions of each flat plate-shaped object can be made uniform, high-quality surface treatment without variation can be performed.
[0005]
However, when the thickness of the flat plate-shaped object (for example, printed wiring board... Work W) is thin, the treatment liquid Q in the surface treatment tank 10 shown in FIG. When transporting, for example, as indicated by a two-dot chain line, the flat plate-shaped object (W) is bent or bent in the direction (left-right direction) perpendicular to the transport direction (perpendicular to the paper surface in FIG. 9), and further swings. And vibration may occur.
[0006]
In this case, since the distance between the electrodes in the treatment tank 10 varies, it is inevitable that the quality deteriorates. Furthermore, there is a possibility that a flat plate-shaped object may be damaged or the interior member itself may be deformed due to a collision with the treatment tank interior member.
[0007]
Therefore, as shown in FIGS. 7 and 8, the applicant of the present invention is stretched around the guide post 81 in a state where the processing tank 10 is vertically separated on both sides of the transport path R and extends in the transport (X) direction. An apparatus provided with a conveyance guide means 80 having a plurality of wires (conveyance guides) 82 has been proposed (for example, Japanese Patent Application No. 2000-38682).
[0008]
According to this, the free movement of the flat plate-like object (work W) is regulated within the distance Dg (for example, 16 mm) between the wires (conveyance guides) 82 and 82, and the vertical hanging state of the flat plate-like object (W) is controlled. Since it is possible to guide the conveyance along the conveyance path R while maintaining it, the flat object (W) can be conveyed stably and smoothly. That is, high quality processing can be performed.
[0009]
In both cases of the batch method and the continuous method, the plate-shaped object (W) must be immersed in the treatment tank liquid Q from the outside of the treatment tank 10, and after the treatment is finished, the treatment tank 10 contains the solution Q. The flat plate-shaped object (W) must be taken out of the processing tank 10.
[0010]
Specifically, the plate-shaped object can be immersed in the liquid Q in the first treatment tank 10 by being lowered from a high place (in the atmosphere) using the lifting means, and after the surface treatment is completed, the lifting means is used. The plate-shaped object is raised from the liquid Q in the processing tank 10 to a high place (in the atmosphere) so that it can be taken out.
[0011]
[Problems to be solved by the invention]
By the way, when the flat plate-shaped object (work W) is immersed in the processing tank 10 and pulled up from the processing tank 10, the ascending / descending speed is flat to ensure the continuity of the surface treatment during the transfer in the processing tank 10. Compared to the transfer speed of the shaped object (for example, printed wiring board... Work W) in the processing tank 10, the speed is high (for example, quadruple speed).
[0012]
Thus, in the descent process during immersion, the tip portion (the lower end portion in the vertically suspended state) Wa of the flat plate-shaped object (W) receives a large liquid resistance, so that, for example, as shown by the solid line in FIG. ) Bends, bends or swings in a direction perpendicular to the X direction, and as a result, the flat plate-shaped object (W) collides with a tank interior product (for example, the guide post 81, an electrode not shown). , May stick.
[0013]
Further, in the case of an apparatus constructed so that the flat plate-like object (W) can be lowered suddenly within the conveyance guides 82, 82 (conveyance path R), the tip portion of the flat plate-like object (W) (in a vertically suspended state) Since the lower end portion Wa) does not enter between the conveyance guides 82, 82 (81, 81), the conveyance cannot be started.
[0014]
An object of the present invention is to provide a surface treatment apparatus capable of straightly dropping a flat plate-like object into a liquid in a treatment tank while maintaining a vertically suspended state while preventing tip bending or the like when immersed in the treatment tank. It is in.
[0015]
[Means for Solving the Problems]
The invention of claim 1 is capable of immersing in a liquid in a surface treatment tank while lowering a flat plate-shaped object held in a vertically suspended state by a lifting and lowering means, and capable of transporting a flat plate-shaped object in a transport direction by a transport means. In a surface treatment apparatus for performing surface treatment on a plate-shaped object being conveyed in the surface treatment tank, the plate-shaped object held in the vertically suspended state is immersed in a liquid in the surface treatment tank while being lowered by the elevating means. In order to maintain the vertically suspended state of the flat plate-like object by approaching the holding pieces from both sides in the direction crossing the conveying direction of the flat plate-shaped object, the flat plate-like object can be held and Vertically formed so that the sandwiching pieces on both sides can be separated from the plate-shaped object during the period from when the immersion of the object in the liquid in the surface treatment tank is completed to the start of conveyance of the plate-shaped object in the conveyance direction. Hanging Provided maintaining means is a surface treatment apparatus.
[0016]
In this invention, for example, the vertical suspended state maintaining means is acted before the plate-shaped object held in the vertically suspended state on the conveying means via the hanger is lowered by the elevating means and immersed in the liquid in the surface treatment tank.
[0017]
That is, the flat plate-shaped object is clamped by making the holding pieces approach from both sides in the direction crossing the conveying direction of the flat-shaped object. Thereby, the vertically suspended state of the flat plate-shaped object can be maintained constant. In this state, if the elevating means is lowered, the flat plate-like object can be surely and stably immersed in the liquid in the surface treatment tank while being lowered in the posture in which the vertically suspended state is maintained. In other words, the flat plate-like object can be lowered straight into the liquid in the treatment tank while preventing the bent end of the flat plate-like object when the flat-shaped object is immersed in the treatment tank.
[0018]
On the contrary, during the period from the end of immersion in the liquid in the surface treatment tank to the start of conveyance in the conveyance direction of the flat plate-shaped object, the vertical suspension state maintaining means is operated reversely (lifted) to hold both sides The piece is separated from the flat plate-shaped object. Thus, the flat plate-like object can be smoothly conveyed in the conveyance direction.
[0019]
In other words, since the flat plate-like object can be lowered straight into the liquid in the treatment tank while maintaining a vertically suspended state while preventing tip bending when immersed in the treatment tank, the flat plate-shaped object collides with the tank interior product. And can be prevented from sticking to them, and can be quickly transported to perform surface treatment.
[0020]
Further, the invention according to claim 2 is a pair of movable members in which the vertically suspended state maintaining means is attached in a state of extending in the up-down direction and having the plurality of sandwiching pieces spaced apart in the up-down direction and inwardly facing each other. And a separation approach driving mechanism that can drive and approach the pair of movable members in the direction crossing the transport direction.
[0021]
In this invention, when the separation approach drive mechanism that constitutes the vertical suspension state maintaining means is driven to approach, the pair of movable members that extend in the vertical direction approach in the direction crossing the transport direction. Then, the plurality of sandwiching pieces attached to the respective movable members in the vertically spaced state and inwardly facing each other can sandwich the flat plate-shaped object (surface) from both sides in the direction crossing the transport direction. Accordingly, it is possible to maintain the entire vertically suspended state of the flat plate-shaped object (surface).
[0022]
Further, when the separation approach drive mechanism is driven to be separated, the pair of movable members extending in the vertical direction are separated in a direction crossing the transport direction. Then, the plurality of sandwiching pieces attached to the respective movable members in the vertically separated state and inwardly facing each other escape from the flat plate shaped object (surface) to both sides in the direction intersecting with the conveying direction. That is, the conveyance in the conveyance direction of a flat plate shaped object (surface) can be permitted.
[0023]
Therefore, in addition to being able to achieve the same operational effects as in the case of the invention of claim 1, the posture of the flat plate-like object (surface) can be maintained fully and automatically, and quick approach / separation drive can be performed. .
[0024]
The invention according to claim 3 is the surface treatment apparatus in which the holding piece is attached in a state of protruding from the movable member.
[0025]
In this invention, each clamping piece is attached in a state of projecting from each movable member. Thus, the plate-shaped object (surface) sandwiched between the sandwiching pieces can be kept in a state where it does not contact the movable members. That is, a space can be established (secured) between each sandwiching piece and the flat object (surface) sandwiched between the sandwiching pieces.
[0026]
Therefore, for example, when the size (vertical dimension) of the flat plate (surface) this time is smaller than the size (vertical dimension) of the basic flat plate (surface), Since the lower end portion cannot be clamped by the lower clamping piece, there is a strong possibility that the lower end portion is bent when descending into the liquid. However, even if the lower end portion is bent, the bent portion can be accommodated in the space, so that the lower end portion of the flat plate (surface) sticks to each movable member, or on the outside of each movable member. You can avoid wrapping around.
[0027]
Therefore, in addition to being able to achieve the same operational effects as those of the inventions of the first and second aspects, the flexibility to the size (vertical dimension) of the flat plate-shaped object (surface) is wide, and the flat plate shape The surface quality of the object (surface) can be secured well.
[0028]
Further, in the invention of claim 4, the sandwiching piece is attached to the movable member in an inclined posture in which the holding piece has an elongated shape extending in the carrying direction and the upstream position in the carrying direction is high and the downstream position is low. Surface treatment equipment.
[0029]
In this invention, when the movable member is brought close, each of the long and narrow sandwiching pieces extending in the transport direction can sandwich the vertically suspended flat plate-shaped object (surface) from both sides thereof. Since each clamping piece is attached to the movable member in an inclined posture in which the upstream position in the transport direction is high and the downstream position is low, a flat object (surface) is placed on the same horizontal line outside the liquid (in liquid) Can be avoided.
[0030]
Moreover, in liquid, when each clamping piece is separated and it conveys a plate-shaped object (surface) in a conveyance direction after that, on the clamping piece with the curved lower end part of a plate-shaped object (surface), etc. Even if it gets on, the lower end part can escape (separate) from the sandwiching piece as it goes downstream, so that the lower end part does not bite into the sandwiching piece.
[0031]
Therefore, in addition to having the same operational effects as those of the inventions of claims 1 to 3, the flat plate-shaped object (surface) can be securely clamped and the flat plate-shaped object (surface) can be smoothly conveyed. Can be secured.
[0032]
Furthermore, in the invention according to claim 5, the separation approach drive mechanism can be rotated about a central fulcrum while the movable member is rotatably connected to one end and the other end is connected to a drive source. It is a surface treatment apparatus formed from a link mechanism including a simple link.
[0033]
In such an invention, the link source (link) can be rotated in the separation direction around the central fulcrum by driving the drive source connected to the other end portion apart. Then, the movable member rotatably connected to one end of the link moves in a direction away from the flat plate-shaped object (surface). That is, each holding piece is separated from the flat plate-shaped object (surface) and can be held open.
[0034]
On the other hand, when the link is rotated in the approach direction around the central fulcrum by driving the drive source connected to the other end of the link, a movable member rotatably connected to the one end is It moves in the direction approaching the flat object (surface). That is, a flat plate-shaped object (surface) can be approached and clamped from both sides by each clamping piece.
[0035]
When the link (link mechanism) is rotated around the center fulcrum, the movable member, that is, each clamping piece is displaced from the upper side (downward) to the lower side (upward), and the flat plate-shaped object (surface ), The gripping pieces can be soft-touched to the flat plate-shaped object (surface) as compared with the case where each pinching piece is separated from or approached to the flat plate-shaped object (surface) from a right angle direction. And the structure of the separation approach drive mechanism is simple.
[0036]
Therefore, in addition to achieving the same operational effects as those of the inventions of claims 2 to 4, it is possible to more smoothly hold and simplify the structure of the separation approach drive mechanism and reduce the cost.
[0037]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0038]
As shown in FIGS. 1 to 4, the surface treatment apparatus is provided with a vertically suspended state maintaining means 50 that can be disposed in association with the surface treatment tanks (10 </ b> A, 10 </ b> B), and a flat plate-shaped object (workpiece) held in the vertically suspended state. W) is lowered by the elevating means 30, and before being immersed in the liquid Q in the surface treatment tank (10A, 10B), the sandwiching pieces 57, 57 are approached from both sides in the direction crossing the X direction of the workpiece W. In order to maintain the vertically suspended state, the workpiece W can be clamped and from the time when the immersion in the liquid Q in the surface treatment tank (10A, 10B) of the workpiece W is completed until the conveyance of the workpiece W in the X direction starts. Further, the holding pieces 57 on both sides are formed so as to be separated from the work W.
[0039]
The basic configuration and function of the surface treatment apparatus are as follows: a flat plate-like object (in this embodiment, a printed wiring board: the above-described workpiece W) held in a vertically suspended state is lowered by the elevating means 30 while the surface treatment tank (10A , 10B), the workpiece W can be immersed in the X direction by the transfer means 20, and the surface of the workpiece W being transferred in the surface treatment tank 10 (10A, 10B) can be subjected to surface treatment. . That is, this surface treatment apparatus constitutes a plating apparatus capable of plating a printed wiring board.
[0040]
In FIG. 1, a straight line extends from the left to the right (not shown), folds back with a circular arc at the right end, extends straight from the right to the left, and extends along a circular arc at the left end (not shown). A plurality of surface treatment tanks 10 are disposed along the surface. The workpiece W is transported in the transport (X) direction along the transport path R.
[0041]
Here, since the workpiece W is introduced and immersed in the liquid Q at the starting end (left side in the figure) of a pretreatment tank (for example, an acid degreasing treatment tank) on the near side, the tank is referred to as an immersion charging tank 10A. . The workpiece W conveyed in the X direction in the liquid in the immersion charging tank 10A passes through the liquid seal part (not shown) and is directly disposed in the right turn part (for example, a water washing process). Tank) 10 is transported and taken out from the surface treatment tank 10 at the end portion.
[0042]
Next, the workpiece W is again charged at the start end (right side in the figure) of the surface treatment tank (for example, electrolytic copper plating treatment tank) and immersed in the liquid Q. The tank is referred to as an immersion charging tank 10B. Thus, the vertically suspended state maintaining means 50 is provided in each immersion charging tank 10A, 10B.
[0043]
In FIG. 2, the transport means 20 includes a transport guide member 21 extending in the X direction, a reciprocating member 22 that moves forward and backward (reciprocates) on the transport guide member 21 in the X direction by a transport motor 24, and the reciprocating motion. An anti-back type pusher 23 mounted on the member 22 is included, and the hanger 40 (non-pushing portion 46) is pitch-fed by a predetermined pitch along the hanger guide member 25 (intermittent conveyance: one mode of continuous conveyance). A pusher type conveying means capable of being configured is configured.
[0044]
As shown in FIGS. 2 and 4, the elevating means 30 includes an elevating body (lift) 31, an elevating mechanism (chain, sprocket, etc.) 33, an elevating motor 34, and the like. By raising and lowering the (lift) 31, the hanger guide member 25 is formed so as to be movable up and down from the raised position on the left side in FIG. 3 to the lowered position on the right side.
[0045]
The elevating body 31 can be moved up and down via a plurality of rollers 31R on a guide column 35 (specifically, a guide bar 36 mounted in parallel) that also serves as a column member constituting the device mechanism unit together with the horizontal member 37 of FIG. It is attached to.
[0046]
As shown in FIG. 4, the lifting member 31 is integrally provided with the arm member 32, and the arm member 32 is integrally provided with a holding portion 32 </ b> A for holding the hanger 40. The holding portion 32A is provided with a support roller 32B on the upper side and a hanger guide member 25 on the lower side.
[0047]
The hanger 40 includes a hanger body 43 shown in FIG. 4, a held portion 44 and a non-push portion 46 attached to the upper side of the hanger body 43, and a clamp 45 attached to the lower side thereof. The holding member 32A (32B) attached to the distal end side of 32 can be moved up and down along with the lifting and lowering movement of the arm member 32 (lifting body 31), and the clamp 45 can hold the flat plate-shaped object (W) as a vertically suspended state. Is formed.
[0048]
The plurality of hangers 40 held apart in the X direction are continuously formed by the one-pitch synchronous feeding operation of the plurality of pushers 23 on the hanger guide member 25 that constitutes the conveying unit 20 and extends in the X direction shown in FIG. Are conveyed (intermittently and pitched in the X direction). At this time, the C-shaped held portion 44 of FIG. 4 is separated from the support roller 32B integral with the elevating body 31 (arm member 32). That is, the engagement with the raising means 30 is released.
[0049]
Further, in the electrolytic copper plating tank (10B), power can be supplied from the power supply means (not shown) through the hanger 40 to the workpiece W clamped and held by the hanger 40. The opposing polarity is also fed to the electrodes (not shown) in the electrolytic copper plating tank (10B).
[0050]
Here, as shown in FIG. 4, the vertical suspension state maintaining means 50 includes a frame body 51, a movable member 55, a clamping piece 57, a separation approach drive mechanism 60, and a drive source (drive cylinder 68). Prior to immersing the flat plate-shaped object (W) held in a suspended state in the liquid Q in the immersion charging tank (10A, 10B) while being lowered by the elevating means 30, both sides in the direction crossing the X direction of the workpiece W Therefore, the workpiece W can be clamped in order to bring the clamping pieces 57, 57 close to each other and maintain the vertically suspended state of the workpiece W. See the approaching state (clamping state) shown in FIGS.
[0051]
Further, the vertical suspension state maintaining means 50 is provided on both sides (from the time when the work W is immersed in the liquid Q in the immersion charging tank (10A, 10B) until the start of conveyance of the work W in the X direction. The left and right) clamping pieces 57 are formed so as to be separated from the workpiece W. See the separated state (clamping open state) shown in FIGS.
[0052]
The frame 51 is composed of a pair of left and right support members 52 shown in FIG. ing. The lifter 71 is slidably guided by a guide column (sliding guide is laid) 35 and moved up and down by a vertical movement mechanism 73.
[0053]
In this embodiment, the power source (vertical movement motor) for driving the vertical movement mechanism 73 is formed to also serve as the lifting motor 34 of the lifting means 30.
[0054]
The frame 51 may also be constructed so as to be lifted (up and down) by the lifting means 30. In this way, the vertical movement device 70 can be used, for example, for the vertical movement (dedicated) of the plating tank rail.
[0055]
The pair of left and right movable members 55, 55 can be separated and driven in the direction crossing the X direction via the separation approach drive mechanism 60 [in this embodiment, the orthogonal direction (the left and right direction in FIG. 4)]. It is attached to the support members 52 and 52. In this embodiment, a plurality of holding pieces 57, 57 are attached to each movable member 55 via projecting holding members 56, 56 for securing (establishing) a space S (see FIGS. 5 and 6). reference).
[0056]
The separation approach drive mechanism 60 includes a pair of left and right link mechanisms 61 (including a link 63) shown in FIG. 4 and a drive cylinder 68 that forms a drive source.
[0057]
The link mechanism 61 includes an upper link (link) 63 whose intermediate portion is rotatably connected to the support member 52 via an upper support pin 62, and one end portion 63 </ b> A of the upper link 63 is connected to the upper end portion of the movable member 55. This is a structure in which the other end 63B is rotatably connected to the drive cylinder 68 through the connection pin 63AP.
[0058]
In order to improve operational stability, the base end portion is rotatably connected to the support member 52 via the lower support pin 65, and one end portion 66A thereof is connected to the lower end portion of the movable member 55 via the connection pin 66AP. A lower link 66 that is rotatably connected is provided. That is, the link mechanism 61 operates in the same manner as in the case of the parallelogram link mechanism.
[0059]
Thus, in the approaching state (clamping state) shown on the left side of FIG. 4, if the other end portion 63 </ b> B is pushed downward by the left driving cylinder (driving source) 68, the upper link 63 is centered on the upper support pin 62. Therefore, it is possible to move the movable member 55 connected to the one end 63A to the left in FIG. That is, the plurality of clamping pieces 57 can be separated from the workpiece W. Note that the lower link 66 follows the upper link 63.
[0060]
Therefore, as shown in FIG. 5, if the left and right drive cylinders (drive sources) 68, 68 are simultaneously moved in the separation direction (downward), a plurality of sandwiching pieces 57 attached to the left and right movable members 55, 55 are provided. 57 can be simultaneously separated from the work W (clamping release).
[0061]
That is, the workpiece W after the surface treatment is completed can be taken out between the sandwiching pieces 57 and 57, or a new (unprocessed) workpiece W can be inserted between the sandwiching pieces 57 and 57.
[0062]
On the other hand, when the other end 63B is lifted upward by the right drive cylinder (drive source) 68 in the separated state (clamping open state) shown on the right side of FIG. Since it rotates counterclockwise about the center, the movable member 55 connected to the one end 63A can be moved leftward in FIG. 4 while being lowered. That is, the plurality of clamping pieces 57 can be brought close to the workpiece W. Also in this case, the lower link 66 follows the upper link 63.
[0063]
Therefore, as shown in FIG. 6, if the left and right drive cylinders (drive sources) 68, 68 are simultaneously moved in the approaching direction (upward), a plurality of sandwiching pieces 57 attached to the left and right movable members 55, 55 are provided. Since the workpiece W can be sandwiched (approached) at 57 at the same time, the bending of the workpiece W can be prevented even if the workpiece W is subsequently lowered and immersed in the liquid Q in the surface treatment tank 10. .
[0064]
And each clamping piece 57 is attached in the state which was made to project to the movable member 55 via the protrusion holding member 56, and was spaced apart by the up-down direction. Therefore, the adaptability with respect to the magnitude | size (up-down direction dimension) of a flat plate-shaped object (surface) is wide, and the surface quality of a flat plate-shaped object (surface) can be ensured favorably.
[0065]
Moreover, the lower end portion of the flat plate-shaped object (surface) that cannot be held by the lowermost holding piece 57 [or a part of the flat plate-shaped object (surface) (the portion between the vertical holding pieces 57, 57)] Even if it is bent, the bent portion is accommodated in the space S established between the protruding holding member 56 and the movable member 55 from which the bent portion protrudes, so that the bent portion is prevented from sticking directly to the movable member 55. It is possible.
[0066]
Further, each sandwiching piece 57 has an elongated shape extending in the transport (X) direction, and is attached to the movable member 55 in an inclined posture in which the upstream position in the X direction is high and the downstream position is low.
[0067]
Thus, even if the lower end portion of the flat plate-shaped object (surface) that cannot be sandwiched by the lowermost sandwich piece 57 is bent and the rider rides on one sandwich piece 57 with the bent portion, Then, when the flat object (surface) is moved in the X direction thereafter, the bent portion can be automatically separated upward from the sandwiching piece 57 inclined downward. In other words, it is possible to prevent the plate-shaped object (surface) from biting (climbing) more strongly with the movement in the X direction. That is, it is formed so as to ensure smooth conveyance of the flat plate (surface).
[0068]
In the surface treatment apparatus of this embodiment, the work W held in a vertically suspended state is lowered by the lifting means 30 above the starting end portion of the immersion charging tank 10A shown in FIG. Prior to the immersion, the separation approach driving mechanism 60 of the vertical suspension state maintaining means 50 is driven to leave the movable members 55 and 55 in the separation state shown in FIG.
[0069]
The hanger 40 loaded from a loading device (not shown) and held by the elevating means 30 (holding portion 32A... Support roller 32B) is held between the movable members 55 and 55 in the state shown on the left side of FIG. The work W is held on the hanger 40 in a vertically suspended manner.
[0070]
Here, the separation approach drive mechanism 60 is driven to approach each movable member 55, 55 as shown in FIG. That is, the workpiece W can be clamped from both surfaces by a plurality of corresponding clamping pieces 57. That is, the free movement of the workpiece W can be restricted and the vertically suspended state can be maintained constant.
[0071]
After that, the elevating means 30 and the vertical movement device 70 are operated synchronously, the hanger 40 is lowered together with the arm member 32, and the frame 51 is moved downward together with the lifter 71 (the cross member 72). That is, the vertical relationship is shifted from the state shown on the left side of FIG. 3 to the state shown on the right side. In this sense, as described above, it is understood that the frame 51 may be constructed so as to be movable up and down (up and down) by the lifting means 30.
[0072]
At this time, the thin workpiece W is transferred to the liquid Q in the immersion charging tank 10A at a relatively high speed. However, the vertical suspension state maintaining function of the vertical suspension state maintaining means 50 causes, for example, FIG. No bending or the like as shown by the two-dot chain line occurs. Therefore, since the workpiece W can be surely and stably immersed in the liquid in the surface treatment tank 10A, it is possible to prevent the workpiece W from interfering with the tank interior product (for example, a liquid heating unit). .
[0073]
The separation approach drive mechanism 60 is driven to be separated from the movable member 55 and 55 as shown in FIG. 5 until the workpiece W starts to be conveyed in the X direction after the immersion. That is, a plurality of corresponding holding pieces 57 are separated from the workpiece W, and the holding is released from both surfaces. The free movement of the workpiece W can be allowed.
[0074]
Thereafter, the conveying means 20 is operated to convey (advance) the hanger 40 by one pitch in the X direction. At this time, the non-holding portion 44 of the hanger 40 is separated from the holding portion 32A on the lifting means 30 (arm member 32) side in the X direction.
[0075]
Therefore, the elevating means 30 and the vertical movement device 70 are operated synchronously, the arm member 32 is raised, and the frame body 51 is moved upward together with the lifter 71 (the cross member 72). That is, the vertical relationship is shifted from the state shown on the right side of FIG. 3 to the state shown on the left side thereof.
[0076]
Thus, both the surfaces of the workpiece W can be subjected to the acid degreasing treatment in the surface treatment tank (acid degreasing treatment tank 10A) while the conveying means 20 is operated and the hanger 40 is pitch-conveyed in the X direction. The workpiece W is pulled in the direction of the earliest clamp 45 in the X direction while the conveyance speed is lower than the descent speed during immersion and the upper part is held by the hanger 40 via a plurality of clamps 45. In such a state, the work W is not bent or broken.
[0077]
The work W is transported to the end of the next processing tank 10, where it is taken out above the processing tank 10 by the lowering operation of the lifting / lowering means 30, the one-pitch transporting operation of the transporting means 20 and the lifting / lowering operation of the lifting / lowering means 30. . Then, it is delivered onto the immersion charging tank 10B by a delivery means (not shown), for example.
[0078]
And it is immersed in the immersion charging tank (electrolytic copper plating processing tank) 10B similarly to the case of the immersion charging tank 10A. Although the conveyance guide means 80 is provided in this tank 10B, since the workpiece W is maintained in the vertically suspended state by the vertically suspended state maintaining function of the vertically suspended state maintaining means 50, the conveyance guides 81, 81 ( 82, 82) can be smoothly introduced.
[0079]
In addition, since the free movement of the workpiece W being conveyed in the conveyance guide means 80 is restricted, the distance between the electrodes arranged on both sides of the tank, that is, the distance between the electrodes can be kept constant, so that stable electrolytic (plating) treatment can be performed. Can be done. That is, a high-quality printed wiring board can be produced reliably and efficiently, and the yield can be greatly improved.
[0080]
【The invention's effect】
According to the first aspect of the present invention, before the flat plate-like object is lowered and immersed in the liquid in the surface treatment tank, the holding pieces can be sandwiched from both sides in the direction crossing the conveying direction of the flat plate-like object. In the vertical suspension state, the holding pieces on both sides are formed so as to be separable from the plate-shaped object between the time when the immersion in the liquid in the surface treatment tank is completed and the start of conveyance in the conveying direction of the plate-shaped object. Since the surface treatment apparatus is provided with means, the flat plate-like object can be lowered straightly into the liquid in the treatment tank while being vertically suspended while preventing tip bending or the like when immersed in the treatment tank. Therefore, it can prevent that a flat plate shape thing collides with tank interior goods, or sticks to them, and can convey quickly and can perform surface treatment.
[0081]
Further, according to the invention of claim 2, the pair of movable members attached in a posture in which the vertically suspended state maintaining means extends in the vertical direction and the plurality of sandwiching pieces are separated in the vertical direction and toward each inside, Since the pair of movable members are formed of a separation approach driving mechanism that can be driven apart and approached in a direction crossing the transport direction, the same effect as in the case of the invention of claim 1 can be obtained. Furthermore, the posture of the flat plate-shaped object (surface) can be maintained fully and automatically, and quick approach / separation drive can be performed.
[0082]
Further, according to the invention of claim 3, since the sandwiching piece is attached in a state of protruding from the movable member, the same effects as those of the inventions of claims 1 and 2 can be obtained. In addition, the applicability to the size (vertical dimension) of the flat plate (surface) is wide, and the surface quality of the flat plate (surface) can be favorably secured.
[0083]
Further, according to the invention of claim 4, since the sandwiching piece has an elongated shape extending in the transport direction and is attached to the movable member in an inclined posture in which the upstream position in the transport direction is high and the downstream position is low. In addition to the effects similar to those of the inventions of claims 1 to 3, the flat plate-like object (surface) can be securely clamped and the flat plate-like object (surface) can be smoothly conveyed. it can.
[0084]
Furthermore, according to the fifth aspect, the separation approach drive mechanism is provided with a link that is pivotally connected to one end of the movable member and is pivotally connected to the drive source at the other end. In addition to being able to achieve the same effects as those of the inventions of claims 2 to 4, since the link mechanism is formed, it is possible to more smoothly hold and simplify the structure of the separation approach drive mechanism And cost reduction.
[Brief description of the drawings]
FIG. 1 is a plan view for explaining a plating apparatus according to an embodiment of the present invention.
FIG. 2 is a side view similarly based on the line of sight (2)-(2) in FIG. 1;
3 is also a front view based on the arrow line (3)-(3) in FIG. 1. FIG.
FIG. 4 is also an enlarged view for explaining a vertically suspended posture maintaining means (separate approach drive mechanism).
FIG. 5 is a view for explaining the approaching (clamping) state of the vertically suspended posture maintaining means (separate approach driving mechanism).
FIG. 6 is also a diagram for explaining a separation (clamping release) state of the vertically suspended posture maintaining means (separation approach driving mechanism).
FIG. 7 is a plan view for explaining conveyance guide means in the present invention and a conventional example.
FIG. 8 is a side view for explaining conveyance guide means in the present invention and a conventional example.
FIG. 9 is a front view for explaining a problem of a conventional example.
[Explanation of symbols]
10 Surface treatment tank
10A immersion bath (surface treatment bath)
10B Immersion tank (surface treatment tank)
20 Transport means
21 Transport guide member
22 Reciprocating members
23 Pusher
25 Hanger guide member
30 Lifting means
31 Lifting body
32 Arm members
32A holder
33 Lifting mechanism
34 Lifting motor
35 Guide post
37 Horizontal members
40 Hanger
44 Hold part
50 Vertical suspension state maintenance means
51 frame
52 Prop member
55 Movable member
56 Projection holding member
57 Nipping piece
60 Remote approach drive mechanism
61 Link mechanism
62 Upper support pin (center fulcrum)
63 Uplink (link)
65 lower support pin
66 Downlink
68 Drive cylinder (drive source)
70 Vertical motion device
72 Cross members
73 Vertical movement mechanism
80 Transport guide means
81 Guide post
82 wire (conveyance guide)
W Workpiece (Plate-shaped material ... Printed wiring board)
Wa tip
R transport path
X Transport direction

Claims (5)

縦吊姿態で保持された平板形状物を昇降手段によって下降させつつ表面処理槽内の液中に浸漬可能かつ搬送手段によって平板形状物を搬送方向に搬送可能であるとともに表面処理槽内を搬送中の平板形状物に表面処理を施す表面処理装置において、
前記縦吊姿態で保持された前記平板形状物を前記昇降手段によって下降させつつ表面処理槽内の液中に浸漬するに先立ち当該平板形状物の前記搬送方向と交叉する方向の両側から挟持片を接近させて当該平板形状物の縦吊姿態を維持するために当該平板形状物を挟持可能であるとともに当該平板形状物の前記表面処理槽内の液中に浸漬が終了したときから当該平板形状物の前記搬送方向への搬送開始までの間に両側の挟持片を当該平板形状物から離隔可能に形成された縦吊姿態維持手段を設けた、表面処理装置。
The flat plate-shaped object held in the vertically suspended state can be immersed in the liquid in the surface treatment tank while being lowered by the lifting / lowering means, and the flat plate-shaped object can be conveyed in the conveyance direction by the conveyance means and is being conveyed in the surface treatment tank. In the surface treatment apparatus for performing the surface treatment on the flat plate-shaped object,
Prior to immersing the flat plate-shaped object held in the vertically suspended state in the liquid in the surface treatment tank while being lowered by the elevating means, holding pieces are held from both sides in the direction crossing the conveying direction of the flat plate-shaped object. The flat plate-like object can be sandwiched in order to maintain the vertically suspended state of the flat plate-like object and the flat plate-like object is immersed in the liquid in the surface treatment tank of the flat plate-like object. A surface treatment apparatus provided with a vertically suspended state maintaining means formed so that the sandwiching pieces on both sides can be separated from the flat plate-shaped object until the start of conveyance in the conveyance direction.
前記縦吊姿態維持手段が、前記上下方向に伸びかつ複数の前記挟持片が上下方向に離隔した状態でかつそれぞれ内側に向かう姿勢で取付けられた一対の可動部材と、一対の可動部材を前記搬送方向と交叉する方向に離隔駆動可能および接近駆動可能な離隔接近駆動機構とから形成されている請求項1記載の表面処理装置。The vertically suspended state maintaining means extends in the up-down direction and a plurality of the clamping pieces are separated in the up-down direction and attached in a posture toward the inside, respectively, and a pair of the movable members are conveyed. The surface treatment apparatus according to claim 1, wherein the surface treatment apparatus is formed of a separation approach driving mechanism that can be separated and driven in a direction crossing the direction. 前記挟持片が、前記可動部材に突出させた状態で取付けられている請求項1または請求項2に記載の表面処理装置。The surface treatment apparatus according to claim 1, wherein the clamping piece is attached in a state of protruding from the movable member. 前記挟持片が、前記搬送方向に伸びる細長形状とされるとともに前記搬送方向の上流側位置が高くかつ下流側位置が低くなる傾斜姿勢で前記可動部材に取付けられている請求項1から請求項3までのいずれか1項に記載されている表面処理装置。The said clamping piece is attached to the said movable member in the inclined attitude | position which is made into the elongate shape extended in the said conveyance direction, and the upstream position of the said conveyance direction is high and a downstream position becomes low. The surface treatment apparatus described in any one of the above. 前記離隔接近駆動機構が、一端部に前記可動部材が回動可能に連結されかつ他端部が駆動源に連結されるとともに中央支点を中心に回動可能なリンクを含むリンク機構から形成されている請求項2から請求項4までのいずれか1項に記載されている表面処理装置。The separation approach drive mechanism is formed of a link mechanism including a link that is pivotally connected to one end and the movable end is connected to a drive source and that is rotatable about a central fulcrum. The surface treatment apparatus as described in any one of Claim 2- Claim 4 which is.
JP2001084870A 2001-03-23 2001-03-23 Surface treatment equipment Expired - Fee Related JP3714532B2 (en)

Priority Applications (3)

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CNB011212381A CN1187244C (en) 2001-03-23 2001-06-01 Surface treatment device

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KR101113089B1 (en) * 2009-03-05 2012-02-16 (주)포인텍 An apparatus for guiding a base plate
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