JP2004031613A

JP2004031613A - Substrate transportation apparatus of electronic component mounting apparatus

Info

Publication number: JP2004031613A
Application number: JP2002185380A
Authority: JP
Inventors: Shinsuke Suhara; 須原　信介
Original assignee: Fuji Machine Manufacturing Co Ltd
Current assignee: Fuji Corp
Priority date: 2002-06-25
Filing date: 2002-06-25
Publication date: 2004-01-29
Anticipated expiration: 2022-06-25
Also published as: CN101277605B; CN101277604B; JP4162930B2; CN101277604A; CN101282636B; CN101282636A; CN101277605A

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently use a substrate transportation apparatus which transports one or more substrates side by side in parallel, by positioning and fixing a conveyer belt and a guide rail provided to one end of the substrate transportation apparatus, and attaching other guide rail and conveyer belt for position adjustment in the direction orthogonal to the length direction of the guide rail. <P>SOLUTION: The substrate transportation apparatus 20 comprises a reference support member 50 fixed to the prescribed position on a base 23, first and second intermediate movable support members 60 and 70 attached on the base 23 for position adjustment, and an other end movable support member 80. The support members 50, 60, 70, and 80 are attached with guide rails 51, 61, 71, and 81 as well as the conveyer belts 52, 62, 72, and 82, respectively. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、電子部品が実装されるプリント基板を搬送する基板搬送装置、およびこの装置を備えた電子部品実装装置に関する。
【０００２】
【従来の技術】
この種の基板搬送装置として、図１０に示すように、基板を２列平行に並べて搬送するタイプのものが知られている。この基板搬送装置Ａは、基台上に一対のガイドレール１，２および３，４を互いに平行かつ水平にそれぞれ並設し、このガイドレール対１，２および３，４により案内される基板Ｓを支持して搬送する一対のコンベアベルトを各ガイドレールにそれぞれ平行に並設して構成した搬送装置５，６を２列並設したものである。中央に配置された各ガイドレール２，３を装架し各コンベアベルトを張架する基準支持部材は基台上の基準位置に位置決め固定され、両側に配置された各ガイドレール１，４を装架し各コンベアベルトをそれぞれ張架する２つの可動支持部材はそれぞれガイドレールの長手方向と直交する方向に位置調整可能に基台に取り付けられている。また、両可動支持部材は中央に配置された基準ガイドレール２，３に対して同期して同距離となるように移動されるものである。
【０００３】
また、基板Ｓに装着される部品を供給する部品供給装置Ｂを上述した基板搬送装置Ａの一側にのみ設けた電子部品実装装置も知られている。このとき、部品供給装置Ｂは基台の所定位置すなわち両側に配置されたガイドレール１を最大に開いた位置ａに隣接した位置に固定されている。
【０００４】
【発明が解決しようとする課題】
上述した基板搬送装置Ａにおいては、搬送装置５，６の搬送幅（すなわち互いに対向するガイドレール間の幅）を搬送する基板の幅に応じて設定する際には、可動支持部材をガイドレールの長手方向と直交する方向に移動させることにより、両側に配置された各ガイドレール１，４は基準ガイドレール２，３から同距離だけ離れた位置に移動されるので、搬送装置５，６の各ガイドレール対１，２および３，４は常に同じ幅に設定される。したがって、この基板搬送装置Ａは同じ幅の基板を２列平行に並べて搬送することとなる。これに対して異なる幅の基板を２列または３列以上平行に並べて搬送する基板搬送装置が要請されている。
【０００５】
また上述した基板搬送装置Ａにおいては、中央に配置された各ガイドレール２，３を基準にして両側に配置された各ガイドレール１，４を基準ガイドレール２，３から同距離だけ離れた位置に移動させるので、基板搬送装置が搬送できる基板の最大幅は基板搬送装置のガイドレールの長手方向と直交する方向の幅の略半分となる。したがって、幅の広い基板を搬送するためには、基板搬送装置Ａの幅を広げることとなるが、基板搬送装置Ａが大型化するという問題が生じる。
【０００６】
また上述した電子部品実装装置においては、搬送可能な最大幅より十分小さい幅（例えば最大幅の半分）の基板を搬送する際には、両側に配置された各ガイドレール１，４は基準ガイドレール２，３から基板幅だけ離れた位置すなわち基台の所定位置に固定された部品供給装置Ｂから遠く離れた位置（例えば最大幅の半分だけ離れた位置）に位置決め固定されるので、スループットが悪化するという問題があった。
【０００７】
そこで、本発明は、上述した各問題を解消するためになされたもので、基板搬送装置の一端に配置したガイドレールおよびコンベアベルトを位置決め固定するとともに他のガイドレールおよびコンベアベルトをガイドレールの長手方向と直交する方向に位置調整可能に取り付けることにより、１又は２以上の基板を平行に並べて搬送する基板搬送装置を効率よく使用することを目的とする。
【０００８】
【課題を解決するための手段】
上記の課題を解決するため、請求項１に係る発明の構成上の特徴は、基台上に一対のガイドレールを互いに平行かつ水平にそれぞれ並設し、このガイドレール対により案内される基板を支持して搬送する一対のコンベアベルトを各ガイドレールにそれぞれ平行に並設して構成した搬送装置を複数列並設してなる基板搬送装置において、一端に位置するガイドレールを装架するとともに一端に位置するコンベアベルトを張架した基準支持部材を基台上の基準位置に位置決め固定し、他端に位置するガイドレールを装架するとともに他端に位置するコンベアベルトを張架した他端可動支持部材をガイドレールの長手方向と直交する方向に位置調整可能に基台上に取り付け、基準支持部材と他端可動支持部材との間の基台上に複数の中間可動支持部材を長手方向と直交する方向に位置調整可能に取り付け、基準支持部材および他端可動支持部材にそれぞれ隣接する中間可動支持部材には同基準支持部材および他端可動支持部材にそれぞれ装架されたガイドレールに対向してガイドレールを装架するとともにそれぞれ張架されたコンベアベルトに対向してコンベアベルトを張架し、互いに隣接する前記各中間可動支持部材には搬送装置を構成するガイドレール対を対向させて装架するとともに同期駆動されるコンベアベルト対を対向させて張架したことである。
【０００９】
また、請求項２に係る発明の構成上の特徴は、基準支持部材および中間可動支持部材にそれぞれ回転可能に支承されたプーリ対により基準支持部材および中間可動支持部材に対向して張架されたコンベアベルト対を駆動し、他端可動支持部材および中間可動支持部材にそれぞれ回転可能に支承されたプーリ対により他端可動支持部材および中間可動支持部材に対向して張架されたコンベアベルト対を駆動し、互いに隣接する中間可動支持部材にそれぞれ回転可能に支承された各プーリ対により互いに隣接する中間可動支持部材にそれぞれ対向して張架された各コンベアベルト対をそれぞれ駆動し、各プーリ対にそれぞれ係合される各回転軸を他端可動支持部材の外側の基台上に位置決め固定された他端固定支持部材と基準支持部材との間に回転可能に軸架し、各回転軸をそれぞれ回転させるモータを他端固定支持部材に取り付けたことである。
【００１０】
また、請求項３に係る発明の構成上の特徴は、基台上に一対のガイドレールを互いに平行かつ水平にそれぞれ並設し、このガイドレール対により案内される基板を支持して搬送する一対のコンベアベルトを各ガイドレールにそれぞれ平行に並設して構成した搬送装置を２列並設してなる基板搬送装置において、一端に位置するガイドレールを装架するとともに一端に位置するコンベアベルトを張架した基準支持部材を基台上の基準位置に位置決め固定し、他端に位置するガイドレールを装架するとともに他端に位置するコンベアベルトを張架した他端可動支持部材をガイドレールの長手方向と直交する方向に位置調整可能に基台上に取り付け、基準支持部材と他端可動支持部材との間の基台上に第１および第２中間可動支持部材を長手方向と直交する方向に位置調整可能に取り付け、第１中間可動支持部材には、基準支持部材に装架されたガイドレールに対向してガイドレールを装架するとともに基準支持部材に張架されたコンベアベルトに対向して同コンベアベルトと同期駆動されるコンベアベルトを張架し、第２中間可動支持部材には、他端可動支持部材に装架されたガイドレールに対向してガイドレールを装架するとともに他端可動支持部材に張架されたコンベアベルトに対向して同コンベアベルトと同期駆動されるコンベアベルトを張架したことである。
【００１１】
また、請求項４に係る発明の構成上の特徴は、一端側のコンベアベルト対を基準支持部材および第１中間可動支持部材にそれぞれ回転可能に支承された各プーリ群にそれぞれ張架し、他端側のコンベアベルト対を他端可動支持部材および第２中間可動支持部材にそれぞれ回転可能に支承された各プーリ群にそれぞれ張架し、一端側および他端側のプーリ群をそれぞれ同期して回転させる各回転軸を他端可動支持部材の外側の基台上に固定された他端固定支持部材と基準支持部材との間に回転可能に軸架し、他端固定支持部材に各回転軸をそれぞれ回転させるモータを取り付けたことである。
【００１２】
また、請求項５に係る発明の構成上の特徴は、第１および第２中間可動支持部材を一体的に構成したことである。
【００１３】
また、請求項６に係る発明の構成上の特徴は、他端可動支持部材および中間可動支持部材は基台上にガイドレールの長手方向と直交する方向に延ばして配設した支持部材用レール上を支持部材駆動装置によりそれぞれ移動されるようにしたことである。
【００１４】
また、請求項７に係る発明の構成上の特徴は、基板に装着される部品を供給する部品供給装置を請求項１乃至請求項６のうちいずれか一項に記載の基板搬送装置の少なくとも一端側に設けたことである。
【００１５】
【発明の作用・効果】
上記のように構成した請求項１に係る発明において、搬送装置の搬送幅を搬送する基板の幅に応じて設定する際には、基準位置に位置決め固定した基準支持部材を基準にして他端可動支持部材および各中間可動支持部材をそれぞれ所定の位置に位置調整して固定する。これにより、基準支持部材とこの基準支持部材に隣接する中間可動支持部材、他端可動支持部材とこの他端可動支持部材に隣接する中間可動支持部材、および互いに隣接する各中間可動支持部材にそれぞれ対向させて装架したガイドレール対の各幅は搬送される基板の幅に応じてそれぞれ設定される。したがって、基板搬送装置は異なる幅の基板を２列または３列以上平行に並べて搬送することができるので、基板搬送装置を大型化することなく効率よく基板を搬送することができる。
【００１６】
上記のように構成した請求項２に係る発明においては、モータにより各回転軸が回転すると、回転軸に係合した各プーリ対が同期して回転して各搬送装置のコンベアベルト対が互いに独立して同期駆動される。したがって、各搬送装置において基板の搬送を個々に制御することができる。また、位置決め固定された基準支持部材と他端固定支持部材に各回転軸がそれぞれ軸架されているので、回転軸を確実に支承することができる。
【００１７】
上記のように構成した請求項３に係る発明においては、搬送装置の搬送幅を搬送する基板の幅に応じて設定する際には、基準位置に位置決め固定した基準支持部材を基準にして他端可動支持部材および中間可動支持部材をそれぞれ所定の位置に位置調整して固定する。これにより、基準支持部材と中間可動支持部材、および他端可動支持部材と中間可動支持部材にそれぞれ対向させて装架したガイドレール対の各幅は搬送される基板の幅に応じてそれぞれ設定される。したがって、基板搬送装置は異なる幅の基板を２列平行に並べて搬送することができるので、基板搬送装置を大型化することなく効率よく基板を搬送することができる。
【００１８】
上記のように構成した請求項４に係る発明において、モータにより２つの回転軸が回転されると、回転軸に係合した各プーリ対が同期して回転して各搬送装置のコンベアベルト対が互いに独立して同期駆動される。したがって、各搬送装置において基板の搬送を個々に制御することができる。また、位置決め固定された基準支持部材と他端固定支持部材に各回転軸がそれぞれ軸架されているので、回転軸を確実に支承することができる。
【００１９】
上記のように構成した請求項５に係る発明においては、搬送装置の搬送幅を基板幅に合わせて変更する際に、位置決めされる中間可動部材の数を少なくしたので、位置決め工数を少なくすることができる。また、中間可動部材を自動的に移動させる場合には、位置決めされる中間可動部材の数を少なくしたので、中間可動部材を移動させる駆動構造を簡単にすることができる。
【００２０】
上記のように構成した請求項６に係る発明において、他端可動支持部材および中間可動支持部材は基台上にガイドレールの長手方向と直交する方向に延ばして配設した支持部材用レール上を支持部材駆動装置によりそれぞれ移動されるようになっているので、他端可動支持部材および中間可動支持部材にそれぞれ設けたガイドレール対およびコンベアベルト対を自動的に所定の位置まで移動させることができる。
【００２１】
上記のように構成した請求項７に係る発明において、電子部品実装装置における基板搬送装置の少なくとも一端側に基板に装着される部品を供給する部品供給装置を設けたため、部品供給装置が基準支持部材に装架されて所定の基準位置に固定された基準ガイドレールに隣接して設けられているので、一端側のガイドレール対の幅を変更しても部品供給装置から基準ガイドレールまでの距離は変わらない。したがって、搬送する基板の幅が搬送可能な最大幅より小さければ小さいほど部品供給装置から基板までの最短距離は従来に比べて短く抑えることができるので、電子部品実装装置のスループットを向上させることができる。
【００２２】
【発明の実施の形態】
以下に図１〜図４により、本発明による電子部品実装装置における基板搬送装置の一実施の形態について説明する。図１はこの電子部品実装装置の全体構造を示しており、図２は基板搬送装置の側断面を示している。
【００２３】
電子部品実装装置は、主として図１に示すように、基枠１０上にそれぞれ設けられて、基板Ｓを搬送する基板搬送装置２０、この基板搬送装置２０の一側に設けて基板Ｓに装着する電子部品Ｐを供給する部品供給装置３０、および両装置２０，３０の上方に配設して部品供給装置３０により供給された電子部品Ｐを装着ヘッド４６により吸着保持して基板搬送装置２０に支持された基板Ｓに自動的に装着する部品装着装置４０を備えている。
【００２４】
基板搬送装置２０は、搬送装置２１，２２を２列並設したいわゆるダブルコンベアタイプのものであり、第１および第２搬送装置２１，２２はそれぞれ基台２３上に一対のガイドレール５１，６１、７１，８１を互い平行に対向させてそれぞれ水平に並設し、このガイドレール対５１，６１、７１，８１によりそれぞれ案内される基板Ｓを支持して搬送する一対のコンベアベルト５２，６２、７２，８２を互いに対向させて各ガイドレール５１，６１，７１，８１にそれぞれ平行に並設して構成されたものである。
【００２５】
第１搬送装置２１は、図１および図２に示すように、基台２３上に互いに対向して取り付けた基準支持部材５０と第１中間可動支持部材６０を備えている。これら両部材５０，６０には、一端側すなわち部品供給装置３０側の側壁に搬送方向（図１におけるＸ方向）に沿って設置されたガイドレール５１（第１ガイドレール）とこのガイドレール５１に対向するガイドレール６１（第２ガイドレール）がそれぞれ装架され、一端側の側壁に搬送方向に沿って設置されたコンベアベルト５２（第１コンベアベルト）とこのコンベアベルト５２に対向するコンベアベルト６２（第２コンベアベルト）がそれぞれ張架されている。
【００２６】
基準支持部材５０は、図２および図３に示すように、第１ガイドレール５１および第１コンベアベルト５２を取り付けた第１取付フレーム５３とこの第１取付フレーム５３を基台２３に支持した一対の第１左右支持フレーム５４，５５を備えている。第１取付フレーム５３は左右方向（図３における左右方向）に細長い板材を垂直に配設したものであり、第１取付フレーム５３の上端には第１ガイドレール５１が取り付けられている。第１取付フレーム５３側壁の左右端部には一対の第１プーリ５６，５６が回転可能に支承されており、これら第１プーリ５６，５６に第１コンベアベルト５２が張架されている。なお、第１取付フレーム５３側壁の両第１プーリ５６，５６間には第１コンベアベルト５２の下面に当接して支持する第１支持板５７が取り付けられている。
【００２７】
第１取付フレーム５３の左右端部には、断面Ｌ字状に形成した細長い第１左右支持フレーム５４，５５の各上端部がそれぞれ取り付けられている。これら第１左右支持フレーム５４，５５の各下端は基台２３の所定位置（基準位置）にねじ止め固定されている。これにより、基準支持部材５０は基台２３上の基準位置に位置決め固定され、この結果第１ガイドレール５１および第１コンベアベルト５２が基準位置に位置決め固定される。また、第１左支持フレーム５４の側壁には、搬送用回転軸２８（後述する）に係合して回転される第１駆動用プーリ５８が回転可能に支承され、この第１駆動用プーリ５８には第１コンベアベルト５２が張架されている。なお、この第１コンベアベルト５２は第１取付フレーム５３および第１左右支持フレーム５４，５５の各側壁に回転可能に支承された各プーリ５９に張架されている。
【００２８】
第１中間可動支持部材６０は、図２および図４に示すように、第２ガイドレール６１および第２コンベアベルト６２を取り付けた第２取付フレーム６３とこの第２取付フレーム６３を基台２３に支承した一対の第２左右支持フレーム６４，６５を備えている。第２取付フレーム６３は第１取付フレーム５３と同様に構成されたものであり、第２取付フレーム６３の上端には第２ガイドレール６１が取り付けられ、第２取付フレーム６３側壁の左右端部に支承された一対の第２プーリ６６，６６に第２コンベアベルト６２が張架され、第２プーリ６６，６６間には第２コンベアベルト６２を支持する第２支持板６７が取り付けられている。
【００２９】
第２取付フレーム６３の左右端部には、断面Ｌ字状に形成した細長い第２左右支持フレーム６４，６５の各上端部がそれぞれ取り付けられている。これら第２左右支持フレーム６４，６５の各下端は、各ガイドレールの長手方向と直交する方向に延ばして基台２３上に配設した一対の支持部材用レール２４，２４に沿って移動可能な一対の支持部材スライダ２５にねじ止め固定されている。これにより、第１中間可動支持部材６０はガイドレールの長手方向と直交する方向に位置調整可能に取り付けられ、この結果第２ガイドレール６１および第２コンベアベルト６２が所定の位置に調整されて位置決め固定される。
【００３０】
また、第２左支持フレーム６４の側壁にも、第１左支持フレーム５４と同様に搬送用回転軸２８に係合して回転される第２駆動用プーリ６８が回転可能に支承され、この第２駆動用プーリ６８には第２コンベアベルト６２が張架されている。これにより、第１および第２駆動用プーリ５８，６８が同期回転するので、第１および第２コンベアベルト５２，６２は同期駆動される。なお、この第２コンベアベルト６２は第２取付フレーム６３および第２左右支持フレーム６４，６５の各側壁に回転可能に支承された各プーリ６９に張架されている。
【００３１】
第２搬送装置２２は、図１および図２に示すように、基台２３上に互いに対向して取り付けた他端可動支持部材８０と第２中間可動支持部材７０を備えている。これら両部材７０，８０には、他端側すなわち部品供給装置３０の反対側に搬送方向に沿って設置されたガイドレール８１（第４ガイドレール）とこのガイドレール８１に対向するガイドレール７１（第３ガイドレール）がそれぞれ装架され、他端側に搬送方向に沿って設置されたコンベアベルト８２（第４コンベアベルト）とこのコンベアベルト８２に対向するコンベアベルト７２（第３コンベアベルト）がそれぞれ張架されている。
【００３２】
他端可動支持部材８０は、図２および図４に示すように、第４ガイドレール８１および第４コンベアベルト８２を取り付けた第４取付フレーム８３とこの第４取付フレーム８３を基台２３に支持した一対の第４左右支持フレーム８４，８５を備えている。第４取付フレーム８３は第１取付フレーム５３と同様に構成されたものであり、第４取付フレーム８３の上端には第４ガイドレール８１が取り付けられ、第４取付フレーム８３側壁の左右端部に支承された一対の第４プーリ８６，８６に第４コンベアベルト８２が張架され、第４プーリ８６，８６間には第４コンベアベルト８２を支持する第４支持板８７が取り付けられている。
【００３３】
第４取付フレーム８３の左右端部には、第２左右支持フレーム６４，６５と同様に形成した第４左右支持フレーム８４，８５の各上端部がそれぞれ取り付けられている。これら第４左右支持フレーム８４，８５の各下端は、第２左右支持フレーム６４，６５と同様に一対の支持部材用レール２４，２４に沿って移動可能な一対の支持部材スライダ２６にねじ止め固定されている。これにより、他端可動支持部材８０はガイドレールの長手方向と直交する方向に位置調整可能に取り付けられ、この結果第４ガイドレール８１および第４コンベアベルト８２が所定の位置に調整されて位置決め固定される。
【００３４】
また、第４左支持フレーム８４の側壁にも、第２駆動用プーリ６８と同様に搬送用回転軸２８に係合して回転される第４駆動用プーリ８８が回転可能に支承され、この第４駆動用プーリ８８には第４コンベアベルト８２が張架されている。なお、この第４コンベアベルト８２は第４取付フレーム８３および第４左右支持フレーム８４，８５の各側壁に回転可能に支承された各プーリ８９に張架されている。
【００３５】
第２中間可動支持部材７０は、図２および図５に示すように、第３ガイドレール７１および第３コンベアベルト７２を取り付けた第３取付フレーム７３とこの第３取付フレーム７３を基台２３に支承した一対の第３左右支持フレーム７４，７５を備えている。第３取付フレーム７３は第２取付フレーム６３と同様に構成されたものであり、第３取付フレーム７３の上端には第３ガイドレール７１が取り付けられ、第３取付フレーム７３側壁の左右端部に支承された一対の第３プーリ７６，７６に第３コンベアベルト７２が張架され、第３プーリ７６，７６間には第３コンベアベルト７２を支持する第３支持板７７が取り付けられている。
【００３６】
第３取付フレーム７３の左右端部には、第２左右支持フレーム６４，６５と同様に形成した第３左右支持フレーム７４，７５の各上端部がそれぞれ取り付けられている。これら第３左右支持フレーム７４，７５の各下端は、第２左右支持フレーム６４，６５と同様に一対の支持部材用レール２４，２４に沿って移動可能な一対の支持部材スライダ２７にねじ止め固定されている。これにより、第２中間可動支持部材７０はガイドレールの長手方向と直交する方向に位置調整可能に取り付けられ、この結果第３ガイドレール７１および第３コンベアベルト７２が所定の位置に調整されて位置決め固定される。
【００３７】
また、第３左支持フレームの側壁にも、第４駆動用プーリ８８と同様に搬送用回転軸２８に係合して回転される第３駆動用プーリ７８が回転可能に支承され、この第３駆動用プーリ７８には第３コンベアベルト７２が張架されている。これにより、第３および第４駆動用プーリ７８，８８が同期回転するので、第３および第４コンベアベルト７２，８２は同期駆動される。なお、この第３コンベアベルト７２は第３取付フレーム７３および第３左右支持フレーム７４，７５の各側壁に回転可能に支承された各プーリ７９に張架されている。
【００３８】
上述した搬送用回転軸２８は、図２に示すように、基準支持部材５０の第１左支持フレーム５４と他端固定支持部材としての支持フレーム９１に回転可能に軸架されている。なお、支持フレーム９１は基台２３の所定位置に位置決め固定されている。搬送用回転軸２８の他端にはプーリ２８ａが同軸的に取り付け固定されており、このプーリ２８ａはベルト２９ｂを介して駆動用モータ２９の出力軸に取り付け固定したプーリ２９ａに接続され、駆動用モータ２９の駆動により搬送用回転軸２８が軸まわりに回転する。この駆動用モータ２９は支持フレーム９１に取り付けられている。
【００３９】
また、主として図２に示すように、基板搬送装置２０には支持部材駆動装置９５が設けられている。この支持部材駆動装置９５は、可動支持部材８０をガイドレールの長手方向と直行する方向に移動させるものであり、送りねじ９６とこの送りねじ９６を回転駆動させる駆動用モータ（図示省略）から構成されている。送りねじ９６は、基準支持部材５０の第１左支持フレーム５４と他端固定支持部材としての支持フレーム９１に回転可能に軸架されている。送りねじ９６の他端にはプーリ９６ａが同軸的に取り付け固定されており、このプーリ９６ａは駆動用モータの出力軸に接続され、駆動用モータの駆動により送りねじ９６が軸まわりに回転する。送りねじ９６の中間部には他端可動支持部材８０の係合部８０ａがねじ係合しており、駆動用モータの回転により他端可動支持部材８０がガイドレールの長手方向と直交する方向に往復動するようになっている。なお、基板搬送装置２０には支持部材駆動装置９５と同様に送りねじ９７，９８と駆動用モータ（図示省略）をそれぞれ設けた支持部材駆動装置が設けられ、第１および第２中間可動支持部材６０，７０には送りねじ９７，９８とねじ係合する係合部（図示省略）が設けられている。これにより、各可動支持部材６０，７０，８０を独立して自動的に所望位置に移動させることができる。
【００４０】
部品供給装置３０は、主として図１および図７に示すように、基枠１０上に複数のカセット式フィーダ３１を並設して構成したものである。カセット式フィーダ３１は、基枠１０に離脱可能に取り付けた本体３２と、本体３２の後部に設けた供給リール３３と、本体３２の先端に設けた部品取出部３４を備えている。供給リール３３には電子部品Ｐが所定ピッチで封入された細長いテープ（図示省略）が巻回保持され、このテープがスプロケット（図示省略）により所定ピッチで引き出され、電子部品Ｐが封入状態を解除されて部品取出部３４に順次送り込まれる。なお、部品供給装置３０と基板搬送装置２０の間には監視カメラ３５が設けられており、この監視カメラ３５により装着ヘッド４６に設けた吸着ノズル４８に吸着された電子部品Ｐの状態をモニターする。
【００４１】
部品装着装置４０は、主として図１に示すように、ＸＹロボットタイプのものであり、基枠１０上に装架されて基板搬送装置２０および部品供給装置３０の上方に配設されＹ軸サーボモータ４２によりＹ方向に移動されるＹ方向移動スライダ４１を備えている。このＹ方向移動スライダ４１には、Ｘ軸サーボモータ（図示省略）によりＹ方向に直交する水平なＸ方向に移動されるＸ方向移動スライダ４３が備えられている。
【００４２】
Ｘ方向移動スライダ４３には、図６に示すように、電子部品Ｐを吸着して基板Ｓに実装する吸着ノズル４４を設けた実装ヘッド４５が取り付けられている。この実装ヘッド４５はＸ方向移動スライダ４３に取り付けられたヘッドフレーム４６を備えている。ヘッドフレーム４６の下部には、複数（例えば８本）の吸着ノズル４４を上下方向（Ｚ軸方向）に上向きに負勢されて往復動可能に保持する円筒状のノズルホルダ４７が軸線まわりに回転可能に取り付けられている。このノズルホルダ４７はヘッドフレーム４６に取り付けたＲ軸モータ４８によって吸着ノズル４４が所定位置で停止するように間欠的に回転される。所定位置のうち電子部品Ｐを実装する実装ポイント（実装ステーション）に停止した吸着ノズル４４はＺ軸モータ４９に駆動されるＺ軸送りねじ４９ａによって上下動される。各吸着ノズル４４は、開閉弁を設けた管路を介して負圧供給源に接続されている（何れも図示省略）。吸着ノズル４４は電子部品Ｐの種類により切換選択するようにしている。なお、吸着ノズル４４を複数個でなく１個だけ設けるようにしてもよい。
【００４３】
次に上述した実施の形態において、搬送する基板Ｓの幅に合わせて第１および第２搬送装置２１，２２のガイドレール幅の設定をそれぞれ変更する際には、基準位置に位置決め固定した基準支持部材５０を基準にして他端可動支持部材８０、第１および第２中間可動支持部材６０，７０をそれぞれ所定の位置に位置調整して固定する。具体的には、最初に、第１搬送装置２１で搬送される予定の基板幅に応じて第１の中間可動支持部材６０の位置を調整して固定し、次に、固定された第１の中間可動支持部材６０と支持フレーム９１との間の範囲で、第２の中間可動支持部材７０と他端可動支持部材８０との位置を、それらの間隔が第２搬送装置２２で搬送される予定の基板幅となるように調整して固定するのが望ましい。
【００４４】
これにより、基準支持部材５０とこの基準支持部材５０に隣接する第１中間可動支持部材６０、他端可動支持部材８０とこの他端可動支持部材８０に隣接する第２中間可動支持部材７０をそれぞれ対向させて装架したガイドレール対５１，６１，７１，８１の各幅は搬送される基板Ｓの幅に応じてそれぞれ設定される。したがって、基板搬送装置２０は同一幅の基板だけでなく異なる幅の基板をも２列平行に並べて搬送することができるので、基板搬送装置ひいては電子部品実装装置を大型化することなく効率よく基板を搬送することができる。
【００４５】
また、上述した他端可動支持部材８０、第１および第２中間可動支持部材６０，７０をそれぞれ所定の位置に位置調整して固定する際には、支持部材駆動装置により各可動支持部材６０，７０，８０がそれぞれ移動されるようにしたので、他端可動支持部材８０および第１および第２中間可動支持部材６０，７０にそれぞれ設けたガイドレール６１，７１，８１およびコンベアベルト６２，７２，８２を自動的に所定の位置まで移動させることができる。
【００４６】
なお、他端可動支持部材８０、第１および第２中間可動支持部材６０，７０を位置調整して、図８に示す位置にガイドレール６１，７１，８１を配置するようにしてもよい。これによれば基板搬送装置２０が搬送できる基板Ｓの最大幅は基板搬送装置２０のガイドレールの長手方向と直交する方向の幅とほぼ同じ長さとなる。したがって、基板搬送装置を前記直交する方向に拡張しなくても幅の広い基板を搬送することができる。
【００４７】
また、他端可動支持部材８０、第１および第２中間可動支持部材６０，７０を位置調整して、図９に示す位置にガイドレール６１，７１，８１を配置するようにしてもよい。これによれば、基板搬送装置の両側に部品供給装置を配置して両部品供給装置から電子部品を供給可能ないわゆるダブルデバイス形式の場合において、搬送可能な最大幅より十分小さい幅（例えば最大幅の半分）の基板を搬送する際には、両側に配置された第１および第４ガイドレール５１，８１は部品供給装置から最短の位置に配置されるので、部品装着装置のスループットが悪化するのを防ぐことができる。
【００４８】
また、基板搬送装置２０の一端側に基板Ｓに装着される電子部品Ｐを供給する部品供給装置３０を設けたため、部品供給装置３０が基準支持部材５０に装架されて所定の基準位置に固定された基準ガイドレール５１に隣接して設けられているので、一端側のガイドレール対５１，６１の幅を変更しても部品供給装置３０から基準ガイドレール５１までの距離は変わらない。一方、従来は部品供給装置３０に隣接するガイドレールを移動させてガイドレール対の幅を変更していたので、一端側のガイドレール対の幅を変更すると部品供給装置３０から隣接するガイドレールまでの距離が異なっていた。したがって、搬送する基板Ｓの幅が搬送可能な最大幅より小さければ小さいほど部品供給装置３０から基板Ｓまでの最短距離は従来に比べて短く抑えることができるので、電子部品実装装置のスループットを向上させることができる。
【００４９】
なお、上記実施の形態においては、搬送用回転軸２８を一本だけでなく、複数列並べて設けた搬送路（搬送装置）と同じ数の搬送用回転軸２８を設けて、これら搬送用回転軸２８を別々に回転させ、各搬送路のコンベアベルト対を個々独立に駆動するようにしてもよい。これによれば、駆動用モータにより各回転軸が回転すると、回転軸にそれぞれ係合した各駆動用プーリ対が同期して回転して各搬送装置のコンベアベルト対が互いに独立して同期駆動される。したがって、各搬送装置において基板の搬送を個々に制御することができる。また、位置決め固定された基準支持部材と他端固定支持部材に各回転軸がそれぞれ軸架されているので、回転軸を確実に支承することができる。
【００５０】
また、上記実施の形態においては、搬送路を２本設けたが、搬送路を３本以上設けるようにしてもよい。この場合、第１および第２中間可動支持部材６０，７０の間に１対以上の中間可動支持部材をさらに設け、これら中間可動支持部材に一対のガイドレールおよびコンベアベルトを対向させてそれぞれ設けるようにすればよい。これによれば、搬送装置の搬送幅を搬送する基板の幅に応じて設定する際には、基準位置に位置決め固定した基準支持部材５０を基準にして他端可動支持部材８０および各中間可動支持部材をそれぞれ所定の位置に位置調整して固定する。これにより、基準支持部材５０とこの基準支持部材５０に隣接する第１中間可動支持部材６０、他端可動支持部材８０とこの他端可動支持部材８０に隣接する第２中間可動支持部材７０、および互いに隣接する各中間可動支持部材にそれぞれ対向させて装架したガイドレール対の各幅は搬送される基板の幅に応じてそれぞれ設定される。したがって、基板搬送装置は異なる幅の基板を２列または３列以上平行に並べて搬送することができるので、基板搬送装置を大型化することなく効率よく基板を搬送することができる。
【００５１】
また、上記実施の形態においては、互いに隣接する中間可動支持部材であって互いに異なるガイドレール対を構成するガイドレールをそれぞれ装架したもの（例えば、第１および第２中間可動支持部材６０，７０）をそれぞれ別体に形成して別々に移動させるようにしたが、これら互いに隣接する中間可動支持部材を一体的に構成して同時に移動させるようにしてもよい。
【００５２】
この態様において、搬送する基板Ｓの幅に合わせて第１および第２搬送装置２１，２２のガイドレール幅の設定をそれぞれ変更する場合には、最初に、第１搬送装置２１で搬送される予定の基板幅に応じて第１および第２中間可動支持部材６０，７０の一体ものの位置を調整して固定し、次に、固定された第２中間可動支持部材７０の位置を基準に第２搬送装置２２で搬送される予定の基板幅に応じて他端可動支持部材８０の位置を位置決めして固定するのが望ましい。
【００５３】
これによれば、搬送装置２１（または２２）の搬送幅を基板幅に合わせて変更する際に、位置決めされる中間可動部材の数を少なくしたので、位置決め工数を少なくすることができる。また、中間可動部材を自動的に移動させる場合には、位置決めされる中間可動部材の数を少なくしたので、中間可動部材を移動させる駆動構造を簡単にすることができる。
【図面の簡単な説明】
【図１】本発明に係る基板搬送装置の一実施の形態を電子部品実装装置に適用したものの全体構造を示す斜視図である。
【図２】図１に示す基板搬送装置の側断面図である。
【図３】図２に示す基準支持部材の背面図である。
【図４】図２に示す第１中間可動支持部材（他端可動支持部材）の正面図である。
【図５】図２に示す第２中間可動支持部材の背面図である。
【図６】図１に示す装着ヘッドを示す斜視図である。
【図７】図１に示す基板搬送装置により基板を２枚搬送する状態を示す上面図である。
【図８】図１に示す基板搬送装置により大きな基板を１枚搬送する状態を示す上面図である。
【図９】図１に示す基板搬送装置により２枚の基板を間隔をあけて搬送する状態を示す上面図である。
【図１０】従来技術による基板搬送装置により基板を２枚搬送する状態を示す上面図である。
【符号の説明】
１０…基枠、２０…基板搬送装置、２１，２２…第１および第２搬送装置、２３…基台、２４…支持部材用レール、２５，２６，２７…支持部材スライダ、２８…搬送用回転軸、２９…駆動用モータ、３０…部品供給装置、３１…カセット式フィーダ、３２…本体、３３…供給リール、３４…部品取出部、３５…監視カメラ、４０…部品装着装置、４１…Ｙ方向移動スライダ、４２…Ｙ軸サーボモータ、４３…Ｘ方向移動スライダ、４４…吸着ノズル、４５…実装ヘッド、４６…ヘッドフレーム、４７…ノズルホルダ、４８…Ｒ軸モータ、４９…Ｚ軸モータ、４９ａ…Ｚ軸送りねじ、５０…基準支持部材、５１…第１ガイドレール、５２…第１コンベアベルト、５３…第１取付フレーム、５４…第１左支持フレーム、５５…第１右支持フレーム、５６…第１プーリ、５７…第１支持板、５８…第１駆動用プーリ、５９，６９，７９，８９…プーリ、６０…第１中間可動支持部材、６１…第２ガイドレール、６２…第２コンベアベルト、６３…第２取付フレーム、６４…第２左支持フレーム、６５…第２右支持フレーム、６６…第２プーリ、６７…第２支持板、６８…第２駆動用プーリ、７０…第２中間可動支持部材、７１…第３ガイドレール、７２…第３コンベアベルト、７３…第３取付フレーム、７４…第３左支持フレーム、７５…第３右支持フレーム、７６…第３プーリ、７７…第３支持板、７８…第４駆動用プーリ、８０…他端可動支持部材、８１…第４ガイドレール、８２…第４コンベアベルト、８３…第４取付フレーム、８４…第４左支持フレーム、８５…第４右支持フレーム、８６…第４プーリ、８７…第４支持板、８８…第４駆動用プーリ、８９…プーリ、９１…支持フレーム、９５…支持部材駆動装置、９６，９７，９８…送りねじ、Ｓ…基板、Ｐ…電子部品。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a board transfer device that transfers a printed board on which electronic components are mounted, and an electronic component mounting device including the device.
[0002]
[Prior art]
As shown in FIG. 10, there is known a substrate transfer apparatus of this type in which substrates are transferred in two rows in parallel. The substrate transport apparatus A has a pair of guide rails 1, 2, 3 and 4 arranged on a base in parallel and horizontally parallel to each other, and a substrate S guided by the guide rail pairs 1, 2, 3 and 4 is provided. The conveyor devices 5 and 6 are arranged in two rows in which a pair of conveyor belts for supporting and transporting the belts are arranged in parallel with each guide rail. A reference support member for mounting the guide rails 2 and 3 arranged in the center and stretching each conveyor belt is positioned and fixed at a reference position on the base, and mounts the guide rails 1 and 4 arranged on both sides. The two movable support members that bridge the respective conveyor belts are mounted on the base so as to be position-adjustable in a direction orthogonal to the longitudinal direction of the guide rails. The two movable support members are moved so as to have the same distance in synchronization with the reference guide rails 2 and 3 arranged at the center.
[0003]
Further, there is also known an electronic component mounting apparatus in which a component supply device B for supplying a component to be mounted on a substrate S is provided only on one side of the substrate transport device A described above. At this time, the component supply device B is fixed at a predetermined position of the base, that is, a position adjacent to the position a where the guide rails 1 arranged on both sides are opened to the maximum.
[0004]
[Problems to be solved by the invention]
In the above-described substrate transfer device A, when the transfer width of the transfer devices 5 and 6 (that is, the width between the guide rails facing each other) is set according to the width of the transfer substrate, the movable support member is set to the guide rail. By moving in the direction orthogonal to the longitudinal direction, the guide rails 1, 4 arranged on both sides are moved to the positions separated from the reference guide rails 2, 3 by the same distance. The guide rail pairs 1, 2, 3 and 4 are always set to the same width. Therefore, the substrate transport apparatus A transports substrates having the same width in two rows in parallel. On the other hand, there is a demand for a substrate transfer apparatus that transfers substrates having different widths in parallel in two or more rows.
[0005]
Further, in the above-described substrate transfer apparatus A, the guide rails 1, 4 disposed on both sides with respect to the guide rails 2, 3 disposed at the center are positioned at the same distance from the reference guide rails 2, 3. , The maximum width of the substrate that can be transported by the substrate transport device is approximately half the width of the guide rail of the substrate transport device in the direction orthogonal to the longitudinal direction. Therefore, in order to transfer a wide substrate, the width of the substrate transfer device A must be increased, but there is a problem that the substrate transfer device A becomes large.
[0006]
In the above-described electronic component mounting apparatus, when a board having a width sufficiently smaller than the maximum transportable width (for example, half of the maximum width) is transported, the guide rails 1 and 4 arranged on both sides are used as reference guide rails. Since it is positioned and fixed at a position distant from the components 2 and 3 by the substrate width, that is, at a position distant from the component supply device B fixed at a predetermined position on the base (for example, a position distant by half the maximum width), the throughput deteriorates There was a problem of doing.
[0007]
Therefore, the present invention has been made to solve the above-described problems, and has a guide rail and a conveyor belt disposed at one end of a substrate transfer device, which are positioned and fixed, and the other guide rails and the conveyor belt are extended along the length of the guide rail. An object of the present invention is to efficiently use a substrate transfer device that transfers one or more substrates in parallel in a direction perpendicular to the direction so as to be adjustable.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, a structural feature of the invention according to claim 1 is that a pair of guide rails are arranged on a base in parallel and horizontally parallel to each other, and a board guided by the guide rail pair is mounted on a base. In a substrate transport apparatus in which a plurality of conveyors configured to support and transport a pair of conveyor belts arranged in parallel with each guide rail are arranged in a plurality of rows, a guide rail positioned at one end is mounted and one end is mounted. The reference support member with the conveyor belt stretched over it is positioned and fixed at the reference position on the base, the guide rail located at the other end is mounted, and the other end of the conveyor belt stretched over the other end is movable. A support member is mounted on the base so as to be position-adjustable in a direction perpendicular to the longitudinal direction of the guide rail, and a plurality of intermediate movable support portions are provided on the base between the reference support member and the other end movable support member. Are mounted so as to be position-adjustable in a direction orthogonal to the longitudinal direction, and guides mounted on the reference support member and the other end movable support member are respectively mounted on the intermediate movable support member adjacent to the reference support member and the other end movable support member. The guide rails are mounted on the guide rails facing the rails, and the conveyor belts are stretched on the conveyor belts respectively stretched. That is, a pair of conveyor belts that are mounted facing each other and driven synchronously are stretched facing each other.
[0009]
A structural feature of the invention according to claim 2 is that the pair of pulleys rotatably supported by the reference support member and the intermediate movable support member, respectively, are opposed to the reference support member and the intermediate movable support member. The conveyor belt pair is driven, and the conveyor belt pair stretched facing the other end movable support member and the intermediate movable support member by the pulley pair rotatably supported by the other end movable support member and the intermediate movable support member, respectively. Each of the pulley pairs respectively driven and rotatably supported by the intermediate movable support members adjacent to each other respectively drives the conveyor belt pairs stretched facing the intermediate movable support members adjacent to each other. The rotation shafts respectively engaged with the other end are rotated between the other end fixed support member and the reference support member which are positioned and fixed on the base outside the other end movable support member. Capable to Jikuka is that the respective rotational axis motor for rotating respectively attached to the other end fixed support member.
[0010]
Further, a structural feature of the invention according to claim 3 is that a pair of guide rails are arranged on a base in parallel and horizontally to each other, and a pair of guide rails for supporting and transporting a substrate guided by the pair of guide rails is provided. In a substrate transfer device in which two conveyor belts are arranged in parallel in parallel with each guide rail, a guide rail located at one end and a conveyor belt located at one end are mounted. The stretched reference support member is positioned and fixed at the reference position on the base, the guide rail located at the other end is mounted, and the other end movable support member stretched with the conveyor belt located at the other end is connected to the guide rail. The first and second intermediate movable support members are mounted on the base between the reference support member and the other end movable support member such that the first and second intermediate movable support members are aligned with the longitudinal direction. A conveyor belt mounted on the first intermediate movable support member so as to be position-adjustable in the intersecting direction. A conveyor belt driven synchronously with the conveyor belt is stretched opposite to the second intermediate movable support member, and a guide rail is mounted on the second intermediate movable support member in opposition to a guide rail mounted on the other end movable support member. In addition, a conveyor belt that is driven synchronously with the conveyor belt facing the conveyor belt that is stretched over the other end movable support member is stretched.
[0011]
Further, a structural feature of the invention according to claim 4 is that a pair of conveyor belts at one end side are respectively stretched over respective pulley groups rotatably supported by a reference support member and a first intermediate movable support member. The pair of conveyor belts on the end side are respectively stretched on the respective pulley groups rotatably supported by the other end movable support member and the second intermediate movable support member, and the one end side and the other end side pulley groups are respectively synchronized. Each of the rotating shafts to be rotated is rotatably mounted between the other end fixed support member fixed on a base outside the other end movable support member and the reference support member, and each of the rotating shafts is attached to the other end fixed support member. Motors that rotate the respective motors.
[0012]
A structural feature of the invention according to claim 5 is that the first and second intermediate movable support members are integrally formed.
[0013]
Further, a structural feature of the invention according to claim 6 is that the other end movable support member and the intermediate movable support member are provided on a base for a support member rail extending in a direction orthogonal to the longitudinal direction of the guide rail. Are moved by the supporting member driving device.
[0014]
According to a seventh aspect of the present invention, there is provided a component supply device for supplying a component to be mounted on a substrate, at least one end of the substrate transfer device according to any one of the first to sixth aspects. It is provided on the side.
[0015]
[Action and Effect of the Invention]
In the invention according to claim 1 configured as described above, when setting the transport width of the transport device according to the width of the substrate to be transported, the other end is movable with respect to the reference support member positioned and fixed at the reference position. The position of the support member and each of the intermediate movable support members are adjusted to predetermined positions and fixed. Thus, the reference support member and the intermediate movable support member adjacent to the reference support member, the other end movable support member and the intermediate movable support member adjacent to the other end movable support member, and the intermediate movable support members adjacent to each other, respectively Each width of the pair of guide rails mounted opposite to each other is set according to the width of the substrate to be conveyed. Therefore, the substrate transfer device can transfer substrates of different widths in parallel in two rows or three or more rows, so that the substrates can be transferred efficiently without increasing the size of the substrate transfer device.
[0016]
In the invention according to claim 2 configured as described above, when each rotation shaft is rotated by the motor, each pulley pair engaged with the rotation shaft rotates synchronously, and the conveyor belt pairs of each transport device are independent of each other. And are driven synchronously. Therefore, the transfer of the substrate can be individually controlled in each transfer device. In addition, since the rotating shafts are respectively supported on the reference support member and the other end fixed supporting member which are positioned and fixed, the rotating shafts can be reliably supported.
[0017]
In the invention according to claim 3 configured as described above, when setting the transport width of the transport device according to the width of the substrate to be transported, the other end is set based on the reference support member positioned and fixed at the reference position. The movable support member and the intermediate movable support member are respectively adjusted to predetermined positions and fixed. Thereby, each width of the guide rail pair mounted facing the reference support member and the intermediate movable support member, and the other end movable support member and the intermediate movable support member, respectively, is set according to the width of the substrate to be conveyed. You. Therefore, the substrate transfer device can transfer the substrates having different widths in parallel in two rows, so that the substrate can be transferred efficiently without increasing the size of the substrate transfer device.
[0018]
In the invention according to claim 4 configured as described above, when the two rotating shafts are rotated by the motor, the respective pulley pairs engaged with the rotating shafts are rotated in synchronization, and the conveyor belt pairs of the respective transport devices are rotated. They are driven independently and synchronously. Therefore, the transfer of the substrate can be individually controlled in each transfer device. In addition, since the rotating shafts are respectively supported on the reference support member and the other end fixed supporting member which are positioned and fixed, the rotating shafts can be reliably supported.
[0019]
In the invention according to claim 5 configured as described above, when the transfer width of the transfer device is changed according to the substrate width, the number of intermediate movable members to be positioned is reduced, so that the number of positioning steps is reduced. Can be. Further, when the intermediate movable member is automatically moved, the number of intermediate movable members to be positioned is reduced, so that the drive structure for moving the intermediate movable member can be simplified.
[0020]
In the invention according to claim 6 configured as described above, the other end movable support member and the intermediate movable support member extend on a support member rail that is disposed on the base in a direction perpendicular to the longitudinal direction of the guide rail. Since the support member driving device moves the guide rail pair and the conveyor belt pair respectively provided on the other end movable support member and the intermediate movable support member, the pair can be automatically moved to a predetermined position. .
[0021]
In the invention according to claim 7 configured as described above, a component supply device for supplying a component mounted on a substrate is provided at least at one end side of the substrate transport device in the electronic component mounting device. Is provided adjacent to the reference guide rail fixed to a predetermined reference position, so that even if the width of the guide rail pair at one end is changed, the distance from the component supply device to the reference guide rail is does not change. Therefore, as the width of the board to be conveyed is smaller than the maximum width that can be conveyed, the shortest distance from the component supply device to the board can be kept shorter than before, so that the throughput of the electronic component mounting apparatus can be improved. it can.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a substrate transport device in an electronic component mounting apparatus according to the present invention will be described with reference to FIGS. FIG. 1 shows the entire structure of the electronic component mounting apparatus, and FIG. 2 shows a side cross section of the substrate transfer apparatus.
[0023]
As shown in FIG. 1, the electronic component mounting apparatus is mainly provided on the base frame 10, and is provided on one side of the board transfer device 20 for transferring the board S, and is mounted on the board S. A component supply device 30 for supplying the electronic component P, and an electronic component P supplied by the component supply device 30 which is disposed above the two devices 20 and 30 is sucked and held by the mounting head 46 and supported by the substrate transfer device 20. A component mounting device 40 for automatically mounting the mounted substrate S is provided.
[0024]
The substrate transfer device 20 is of a so-called double conveyor type in which transfer devices 21 and 22 are arranged in two rows, and the first and second transfer devices 21 and 22 each include a pair of guide rails 51 and 61 on a base 23. , 71, 81 are arranged side by side so as to face each other in parallel, and a pair of conveyor belts 52, 62 for supporting and transporting the substrate S guided by the guide rail pairs 51, 61, 71, 81, respectively. The guide rails 72, 82 are opposed to each other and are arranged in parallel with the guide rails 51, 61, 71, 81, respectively.
[0025]
As shown in FIGS. 1 and 2, the first transfer device 21 includes a reference support member 50 and a first intermediate movable support member 60 mounted on the base 23 so as to face each other. These two members 50 and 60 include a guide rail 51 (first guide rail) installed along one end side, that is, a side wall on the component supply device 30 side, along the transport direction (X direction in FIG. 1). Guide rails 61 (second guide rails) facing each other are mounted, and a conveyor belt 52 (first conveyor belt) installed on a side wall on one end side along the transport direction and a conveyor belt 62 facing this conveyor belt 52 are provided. (Second conveyor belt) are stretched.
[0026]
As shown in FIGS. 2 and 3, the reference support member 50 includes a first mounting frame 53 on which a first guide rail 51 and a first conveyor belt 52 are mounted, and a pair of first supporting frames 53 supporting the first mounting frame 53 on the base 23. The first left and right support frames 54 and 55 are provided. The first mounting frame 53 is formed by vertically arranging an elongated plate material in the left-right direction (the left-right direction in FIG. 3), and the first guide rail 51 is mounted on the upper end of the first mounting frame 53. A pair of first pulleys 56, 56 are rotatably supported at left and right ends of the side wall of the first mounting frame 53, and the first conveyor belt 52 is stretched around the first pulleys 56, 56. A first support plate 57 is mounted between the first pulleys 56 on the side wall of the first mounting frame 53 to support the lower surface of the first conveyor belt 52 in contact therewith.
[0027]
At the left and right ends of the first mounting frame 53, upper ends of elongated first left and right support frames 54 and 55 each having an L-shaped cross section are mounted. The lower ends of the first left and right support frames 54 and 55 are fixed by screws to predetermined positions (reference positions) of the base 23. Thereby, the reference support member 50 is positioned and fixed at the reference position on the base 23, and as a result, the first guide rail 51 and the first conveyor belt 52 are positioned and fixed at the reference position. On the side wall of the first left support frame 54, a first drive pulley 58 that is rotated by engaging with the transport rotary shaft 28 (described later) is rotatably supported. , A first conveyor belt 52 is stretched. The first conveyor belt 52 is stretched around pulleys 59 rotatably supported on the side walls of the first mounting frame 53 and the first left and right support frames 54, 55.
[0028]
As shown in FIGS. 2 and 4, the first intermediate movable support member 60 includes a second mounting frame 63 on which the second guide rail 61 and the second conveyor belt 62 are mounted, and the second mounting frame 63 on the base 23. A pair of supported second left and right support frames 64 and 65 are provided. The second mounting frame 63 is configured in the same manner as the first mounting frame 53. A second guide rail 61 is mounted on the upper end of the second mounting frame 63, and the second guide frame 61 is mounted on the left and right ends of the side wall of the second mounting frame 63. A second conveyor belt 62 is stretched between the pair of second pulleys 66, 66 supported, and a second support plate 67 for supporting the second conveyor belt 62 is mounted between the second pulleys 66, 66.
[0029]
The upper ends of the elongated second left and right support frames 64 and 65 each having an L-shaped cross section are attached to the left and right ends of the second mounting frame 63, respectively. The lower ends of the second left and right support frames 64, 65 are movable along a pair of support member rails 24, 24 extending on a direction perpendicular to the longitudinal direction of each guide rail and disposed on the base 23. The pair of support member sliders 25 are fixed by screws. Thereby, the first intermediate movable support member 60 is mounted so as to be position-adjustable in a direction orthogonal to the longitudinal direction of the guide rail, and as a result, the second guide rail 61 and the second conveyor belt 62 are adjusted to predetermined positions and positioned. Fixed.
[0030]
Further, a second driving pulley 68 that is engaged with and rotated by the transport rotary shaft 28 in the same manner as the first left support frame 54 is rotatably supported on the side wall of the second left support frame 64. The second conveyor belt 62 is stretched around the second drive pulley 68. As a result, the first and second driving pulleys 58, 68 rotate synchronously, so that the first and second conveyor belts 52, 62 are driven synchronously. The second conveyor belt 62 is stretched around pulleys 69 rotatably supported on the side walls of the second attachment frame 63 and the second left and right support frames 64 and 65.
[0031]
As shown in FIGS. 1 and 2, the second transport device 22 includes a second end movable support member 80 and a second intermediate movable support member 70 which are mounted on the base 23 so as to face each other. These two members 70 and 80 include a guide rail 81 (fourth guide rail) installed along the transport direction on the other end side, that is, the opposite side of the component supply device 30, and a guide rail 71 ( A conveyor belt 82 (fourth conveyor belt) and a conveyor belt 72 (third conveyor belt) opposed to the conveyor belt 82 are installed on the other end side along the transport direction. Each is stretched.
[0032]
As shown in FIGS. 2 and 4, the other end movable support member 80 supports a fourth mounting frame 83 on which a fourth guide rail 81 and a fourth conveyor belt 82 are mounted, and supports the fourth mounting frame 83 on the base 23. A pair of fourth left and right support frames 84 and 85 are provided. The fourth mounting frame 83 is configured in the same manner as the first mounting frame 53, and a fourth guide rail 81 is mounted on the upper end of the fourth mounting frame 83, and is provided on the left and right ends of the side wall of the fourth mounting frame 83. A fourth conveyor belt 82 is stretched around the pair of fourth pulleys 86, 86 supported, and a fourth support plate 87 for supporting the fourth conveyor belt 82 is mounted between the fourth pulleys 86, 86.
[0033]
The upper ends of the fourth left and right support frames 84 and 85 formed similarly to the second left and right support frames 64 and 65 are attached to the left and right end portions of the fourth attachment frame 83, respectively. The lower ends of the fourth left and right support frames 84 and 85 are screwed and fixed to a pair of support member sliders 26 movable along a pair of support member rails 24 and 24 similarly to the second left and right support frames 64 and 65. Have been. As a result, the other end movable support member 80 is mounted so as to be position-adjustable in a direction orthogonal to the longitudinal direction of the guide rail, and as a result, the fourth guide rail 81 and the fourth conveyor belt 82 are adjusted to predetermined positions and positioned and fixed. Is done.
[0034]
A fourth driving pulley 88, which is engaged with and rotated by the transport rotary shaft 28 in the same manner as the second driving pulley 68, is also rotatably supported on the side wall of the fourth left support frame 84. A fourth conveyor belt 82 is stretched around the fourth drive pulley 88. The fourth conveyor belt 82 is stretched around pulleys 89 rotatably supported on respective side walls of the fourth attachment frame 83 and the fourth left and right support frames 84 and 85.
[0035]
As shown in FIGS. 2 and 5, the second intermediate movable support member 70 includes a third mounting frame 73 on which the third guide rail 71 and the third conveyor belt 72 are mounted, and the third mounting frame 73 mounted on the base 23. A pair of supported third left and right support frames 74 and 75 are provided. The third mounting frame 73 has the same configuration as the second mounting frame 63, and the third guide rail 71 is mounted on the upper end of the third mounting frame 73, and the third mounting frame 73 is provided on the left and right ends of the side wall of the third mounting frame 73. A third conveyor belt 72 is stretched between a pair of supported third pulleys 76, 76, and a third support plate 77 for supporting the third conveyor belt 72 is mounted between the third pulleys 76, 76.
[0036]
Upper ends of third left and right support frames 74 and 75 formed in the same manner as the second left and right support frames 64 and 65 are mounted on left and right ends of the third mounting frame 73, respectively. The lower ends of the third left and right support frames 74 and 75 are screwed and fixed to a pair of support member sliders 27 movable along a pair of support member rails 24 and 24 similarly to the second left and right support frames 64 and 65. Have been. Thereby, the second intermediate movable support member 70 is mounted so as to be position-adjustable in a direction orthogonal to the longitudinal direction of the guide rail, and as a result, the third guide rail 71 and the third conveyor belt 72 are adjusted to predetermined positions and positioned. Fixed.
[0037]
Also, a third driving pulley 78, which is engaged with the transport rotary shaft 28 and is rotated similarly to the fourth driving pulley 88, is rotatably supported on the side wall of the third left support frame. A third conveyor belt 72 is stretched around the driving pulley 78. As a result, the third and fourth driving pulleys 78, 88 rotate synchronously, so that the third and fourth conveyor belts 72, 82 are driven synchronously. Note that the third conveyor belt 72 is stretched around pulleys 79 rotatably supported on respective side walls of the third mounting frame 73 and the third left and right support frames 74 and 75.
[0038]
As shown in FIG. 2, the transport rotary shaft 28 is rotatably mounted on a first left support frame 54 of the reference support member 50 and a support frame 91 as a fixed support member at the other end. The support frame 91 is positioned and fixed at a predetermined position on the base 23. A pulley 28a is coaxially mounted and fixed to the other end of the transport rotary shaft 28. The pulley 28a is connected to a pulley 29a mounted and fixed to an output shaft of a driving motor 29 via a belt 29b, and By the drive of the motor 29, the transport rotary shaft 28 rotates around the axis. This drive motor 29 is attached to a support frame 91.
[0039]
Further, as mainly shown in FIG. 2, the substrate transfer device 20 is provided with a support member driving device 95. The support member driving device 95 moves the movable support member 80 in a direction perpendicular to the longitudinal direction of the guide rail, and includes a feed screw 96 and a driving motor (not shown) for driving the feed screw 96 to rotate. Have been. The feed screw 96 is rotatably mounted on the first left support frame 54 of the reference support member 50 and a support frame 91 as the other end fixed support member. A pulley 96a is coaxially attached and fixed to the other end of the feed screw 96. The pulley 96a is connected to an output shaft of a driving motor, and the driving screw rotates the feed screw 96 around the axis. An engaging portion 80a of the other end movable support member 80 is screw-engaged with an intermediate portion of the feed screw 96, and the other end movable support member 80 is rotated in the direction orthogonal to the longitudinal direction of the guide rail by rotation of the driving motor. It reciprocates. Note that the substrate transfer device 20 is provided with a support member drive device provided with feed screws 97 and 98 and a drive motor (not shown), similarly to the support member drive device 95, and the first and second intermediate movable support members are provided. 60 and 70 are provided with engagement portions (not shown) for screw engagement with the feed screws 97 and 98. Thereby, each movable support member 60, 70, 80 can be automatically and independently moved to a desired position.
[0040]
The component supply device 30 mainly includes a plurality of cassette type feeders 31 arranged on a base frame 10 as shown in FIGS. 1 and 7. The cassette type feeder 31 includes a main body 32 detachably attached to the base frame 10, a supply reel 33 provided at a rear part of the main body 32, and a component take-out part 34 provided at a tip of the main body 32. An elongate tape (not shown) in which electronic components P are sealed at a predetermined pitch is wound and held on the supply reel 33, and the tape is pulled out at a predetermined pitch by a sprocket (not shown) to release the electronic component P from the sealed state. Then, they are sequentially sent to the component take-out unit 34. A monitoring camera 35 is provided between the component supply device 30 and the substrate transfer device 20, and monitors the state of the electronic component P sucked by the suction nozzle 48 provided on the mounting head 46 by the monitoring camera 35. .
[0041]
As shown in FIG. 1, the component mounting device 40 is of an XY robot type, and is mounted on the base frame 10 and disposed above the board transfer device 20 and the component supply device 30 and is provided with a Y-axis servo motor. A Y-direction moving slider 41 which is moved in the Y-direction by 42 is provided. The Y-direction moving slider 41 includes an X-direction moving slider 43 that is moved in a horizontal X direction orthogonal to the Y direction by an X-axis servo motor (not shown).
[0042]
As shown in FIG. 6, a mounting head 45 provided with a suction nozzle 44 for sucking the electronic component P and mounting it on the substrate S is attached to the X-direction moving slider 43. The mounting head 45 has a head frame 46 attached to the X-direction moving slider 43. In the lower part of the head frame 46, a cylindrical nozzle holder 47 that holds a plurality of (for example, eight) suction nozzles 44 in a vertical direction (Z-axis direction) upward and reciprocally holds the suction nozzles 44 around an axis. Mounted as possible. The nozzle holder 47 is intermittently rotated by an R-axis motor 48 attached to the head frame 46 so that the suction nozzle 44 stops at a predetermined position. The suction nozzle 44 stopped at a mounting point (mounting station) for mounting the electronic component P among predetermined positions is moved up and down by a Z-axis feed screw 49 a driven by a Z-axis motor 49. Each of the suction nozzles 44 is connected to a negative pressure supply via a pipe provided with an on-off valve (all are not shown). The suction nozzle 44 is switched and selected according to the type of the electronic component P. Note that only one suction nozzle 44 may be provided instead of a plurality.
[0043]
Next, in the above-described embodiment, when changing the setting of the guide rail widths of the first and second transfer devices 21 and 22 according to the width of the substrate S to be transferred, the reference support positioned and fixed at the reference position is used. The other end movable support member 80 and the first and second intermediate movable support members 60 and 70 are adjusted to respective predetermined positions with respect to the member 50 and fixed. Specifically, first, the position of the first intermediate movable support member 60 is adjusted and fixed according to the substrate width to be transferred by the first transfer device 21, and then, the fixed first In the range between the intermediate movable support member 60 and the support frame 91, the positions of the second intermediate movable support member 70 and the other end movable support member 80 are set to be transported by the second transport device 22 at the interval therebetween. It is desirable that the substrate be adjusted so as to have the same width as the substrate and fixed.
[0044]
Thus, the reference support member 50, the first intermediate movable support member 60 adjacent to the reference support member 50, the other end movable support member 80, and the second intermediate movable support member 70 adjacent to the other end movable support member 80 are respectively formed. The width of each of the guide rail pairs 51, 61, 71, 81 mounted opposite to each other is set according to the width of the substrate S to be conveyed. Therefore, the board transfer device 20 can transfer not only boards of the same width but also boards of different widths in parallel in two rows, so that the board can be efficiently transferred without increasing the size of the board transfer device and thus the electronic component mounting device. Can be transported.
[0045]
When the above-mentioned other-end movable support member 80 and the first and second intermediate movable support members 60 and 70 are adjusted in position and fixed to predetermined positions, respectively, the movable support members 60, 70, 80 are respectively moved, so that the guide rails 61, 71, 81 and the conveyor belts 62, 72, provided on the other end movable support member 80 and the first and second intermediate movable support members 60, 70, respectively. 82 can be automatically moved to a predetermined position.
[0046]
The positions of the other end movable support member 80 and the first and second intermediate movable support members 60 and 70 may be adjusted to arrange the guide rails 61, 71 and 81 at the positions shown in FIG. According to this, the maximum width of the substrate S that can be transferred by the substrate transfer device 20 is substantially the same as the width in the direction orthogonal to the longitudinal direction of the guide rail of the substrate transfer device 20. Therefore, a wide substrate can be transferred without expanding the substrate transfer device in the orthogonal direction.
[0047]
Further, the positions of the other end movable support member 80 and the first and second intermediate movable support members 60 and 70 may be adjusted so that the guide rails 61, 71 and 81 are arranged at the positions shown in FIG. According to this, in the case of a so-called double device type in which the component supply devices are arranged on both sides of the substrate transport device and electronic components can be supplied from both component supply devices, the width is sufficiently smaller than the maximum width that can be transported (for example, the maximum width). (Half of the substrate), the first and fourth guide rails 51 and 81 arranged on both sides are arranged at the shortest position from the component supply device, so that the throughput of the component mounting device deteriorates. Can be prevented.
[0048]
In addition, since the component supply device 30 for supplying the electronic component P mounted on the substrate S is provided at one end of the substrate transfer device 20, the component supply device 30 is mounted on the reference support member 50 and fixed at a predetermined reference position. The distance from the component supply device 30 to the reference guide rail 51 does not change even if the width of the guide rail pair 51, 61 on one end side is changed because the guide rail 51 is provided adjacent to the reference guide rail 51. On the other hand, conventionally, the guide rail adjacent to the component supply device 30 was moved to change the width of the guide rail pair. Therefore, if the width of the guide rail pair at one end was changed, the distance from the component supply device 30 to the adjacent guide rail was changed. Distances were different. Therefore, as the width of the substrate S to be conveyed is smaller than the maximum width that can be conveyed, the shortest distance from the component supply device 30 to the substrate S can be suppressed shorter than before, and the throughput of the electronic component mounting device is improved. Can be done.
[0049]
In the above-described embodiment, not only one transport rotary shaft 28 but also the same number of transport rotary shafts 28 as the transport paths (transport devices) provided in a plurality of rows are provided. 28 may be separately rotated to drive the conveyor belt pairs of each transport path independently. According to this, when each rotating shaft is rotated by the driving motor, the respective driving pulley pairs respectively engaged with the rotating shaft are rotated in synchronization, and the conveyor belt pairs of the respective transport devices are synchronously driven independently of each other. You. Therefore, the transfer of the substrate can be individually controlled in each transfer device. In addition, since the rotating shafts are respectively supported on the reference support member and the other end fixed supporting member which are positioned and fixed, the rotating shafts can be reliably supported.
[0050]
Further, in the above embodiment, two transport paths are provided, but three or more transport paths may be provided. In this case, one or more pairs of intermediate movable support members are further provided between the first and second intermediate movable support members 60 and 70, and a pair of guide rails and a conveyor belt are provided on the intermediate movable support members so as to face each other. What should I do? According to this, when the transfer width of the transfer device is set according to the width of the substrate to be transferred, the other end movable support member 80 and each intermediate movable support member 80 are set based on the reference support member 50 positioned and fixed at the reference position. The members are adjusted in position to predetermined positions and fixed. Thereby, the reference support member 50, the first intermediate movable support member 60 adjacent to the reference support member 50, the other end movable support member 80, the second intermediate movable support member 70 adjacent to the other end movable support member 80, and The width of each guide rail pair mounted opposite to each of the intermediate movable support members adjacent to each other is set according to the width of the substrate to be conveyed. Therefore, the substrate transfer device can transfer substrates of different widths in parallel in two rows or three or more rows, so that the substrates can be transferred efficiently without increasing the size of the substrate transfer device.
[0051]
Further, in the above-described embodiment, the intermediate movable supporting members adjacent to each other and each of which is provided with a guide rail constituting a different pair of guide rails (for example, the first and second intermediate movable supporting members 60 and 70). ) Are separately formed and moved separately, but these intermediate movable support members adjacent to each other may be integrally formed and moved simultaneously.
[0052]
In this embodiment, when the guide rail widths of the first and second transfer devices 21 and 22 are respectively changed according to the width of the substrate S to be transferred, the transfer is first performed by the first transfer device 21. The position of the first and second intermediate movable support members 60 and 70 is adjusted and fixed in accordance with the substrate width of the second substrate, and then the second transfer is performed based on the position of the fixed second intermediate movable support member 70 as a reference. It is desirable to position and fix the position of the other end movable support member 80 according to the substrate width to be transferred by the device 22.
[0053]
According to this, when the transfer width of the transfer device 21 (or 22) is changed according to the substrate width, the number of intermediate movable members to be positioned is reduced, so that the number of positioning steps can be reduced. Further, when the intermediate movable member is automatically moved, the number of intermediate movable members to be positioned is reduced, so that the drive structure for moving the intermediate movable member can be simplified.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the entire structure of an electronic component mounting apparatus to which an embodiment of a substrate transfer apparatus according to the present invention is applied.
FIG. 2 is a side sectional view of the substrate transfer device shown in FIG.
FIG. 3 is a rear view of the reference support member shown in FIG. 2;
FIG. 4 is a front view of a first intermediate movable support member (the other end movable support member) shown in FIG. 2;
FIG. 5 is a rear view of the second intermediate movable support member shown in FIG. 2;
FIG. 6 is a perspective view showing the mounting head shown in FIG. 1;
FIG. 7 is a top view showing a state in which two substrates are transported by the substrate transport device shown in FIG. 1;
FIG. 8 is a top view showing a state in which one large substrate is transferred by the substrate transfer device shown in FIG. 1;
9 is a top view showing a state in which two substrates are transported at an interval by the substrate transport device shown in FIG. 1;
FIG. 10 is a top view showing a state in which two substrates are transported by a conventional substrate transport apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Base frame, 20 ... Substrate conveyance apparatus, 21, 22 ... First and 2nd conveyance apparatus, 23 ... Base, 24 ... Support member rail, 25, 26, 27 ... Support member slider, 28 ... Transport rotation Shaft, 29: drive motor, 30: component feeder, 31: cassette type feeder, 32: main body, 33: supply reel, 34: component take-out section, 35: monitoring camera, 40: component mounting device, 41: Y direction Moving slider, 42: Y-axis servo motor, 43: X-direction moving slider, 44: Suction nozzle, 45: Mounting head, 46: Head frame, 47: Nozzle holder, 48: R-axis motor, 49: Z-axis motor, 49a ... Z-axis feed screw, 50 ... Reference support member, 51 ... First guide rail, 52 ... First conveyor belt, 53 ... First mounting frame, 54 ... First left support frame, 55 ... First right support frame , 56: first pulley, 57: first support plate, 58: first drive pulley, 59, 69, 79, 89 ... pulley, 60: first intermediate movable support member, 61: second guide rail, 62 ... Second conveyor belt, 63 second mounting frame, 64 second left support frame, 65 second right support frame, 66 second pulley, 67 second support plate, 68 second pulley for driving, 70 ... second intermediate movable support member, 71 ... third guide rail, 72 ... third conveyor belt, 73 ... third mounting frame, 74 ... third left support frame, 75 ... third right support frame, 76 ... third pulley , 77: third support plate, 78: fourth drive pulley, 80: other end movable support member, 81: fourth guide rail, 82: fourth conveyor belt, 83: fourth mounting frame, 84: fourth left Support frame, 85 ... 4th right support frame 86, fourth pulley, 87, fourth support plate, 88, fourth drive pulley, 89, pulley, 91, support frame, 95, support member drive device, 96, 97, 98, feed screw, S ... board, P ... electronic parts.

Claims

A pair of guide rails are arranged in parallel and horizontally on a base, and a pair of conveyor belts for supporting and transporting a substrate guided by the guide rail pair are arranged in parallel with the respective guide rails. In a substrate transfer device having a plurality of transfer devices arranged side by side,
Positioning and fixing a reference support member on which the guide rail positioned at one end is stretched and a conveyor belt positioned at the one end is stretched at a reference position on the base,
The other end movable support member on which the guide rail located at the other end is mounted and the conveyor belt located at the other end is stretched can be adjusted on the base in a direction orthogonal to the longitudinal direction of the guide rail. Attached to
A plurality of intermediate movable support members are mounted on a base between the reference support member and the other end movable support member so as to be position-adjustable in a direction orthogonal to the longitudinal direction, and are attached to the reference support member and the other end movable support member. The guide rails are mounted on the intermediate movable support members adjacent to the guide rails mounted on the reference support member and the other end movable support member, respectively, and the guide rails are mounted on the adjacent intermediate movable support members. The conveyor belt is stretched, and the intermediate movable support members adjacent to each other are mounted with the guide rail pair constituting the transport device facing each other and stretched while facing the synchronously driven conveyor belt pair. A substrate transport device in an electronic component mounting device, comprising:

A pair of pulleys rotatably supported by the reference support member and the intermediate movable support member respectively drive a pair of conveyor belts stretched facing the reference support member and the intermediate movable support member, and the other end movable support member is provided. And a pair of pulleys rotatably supported by the intermediate movable support member, respectively, drives the conveyor belt pair stretched opposite to the other end movable support member and the intermediate movable support member, and the intermediate movable support member adjacent to each other is driven. Each of the pair of pulleys rotatably supported by the respective pair drives each of the pair of conveyor belts stretched opposite to the intermediate movable support member adjacent to each other, and each of the rotations respectively engaged with the respective pair of pulleys A shaft is rotatable between the other end fixed support member positioned and fixed on the base outside the other end movable support member and the reference support member. Jikuka to substrate transport apparatus in the electronic component mounting apparatus according to the motor for rotating said rotary shafts, respectively in claim 1, characterized in that attached to the other end fixed support member.

A pair of guide rails are arranged in parallel and horizontally on a base, and a pair of conveyor belts for supporting and transporting a substrate guided by the guide rail pair are arranged in parallel with the respective guide rails. In a substrate transfer device in which transfer devices configured in two rows are arranged in parallel,
Positioning and fixing a reference support member on which the guide rail positioned at one end is stretched and a conveyor belt positioned at the one end is stretched at a reference position on the base,
The other end movable support member on which the guide rail located at the other end is mounted and the conveyor belt located at the other end is stretched can be adjusted on the base in a direction orthogonal to the longitudinal direction of the guide rail. Attached to
First and second intermediate movable support members are mounted on a base between the reference support member and the other end movable support member so as to be position-adjustable in a direction orthogonal to the longitudinal direction, and are attached to the first intermediate movable support member. A conveyor belt that is mounted on the guide rail opposite to the guide rail mounted on the reference support member and is driven synchronously with the conveyor belt opposite the conveyor belt stretched on the reference support member. A conveyor, on which the guide rail is mounted on the second intermediate movable support member so as to face the guide rail mounted on the other end movable support member, and which is stretched on the other end movable support member. A substrate transport device in an electronic component mounting apparatus, comprising a conveyor belt stretched opposite to the conveyor belt and driven synchronously with the conveyor belt.

The one end side conveyor belt pair is stretched over each pulley group rotatably supported by the reference support member and the first intermediate movable support member, respectively, and the other end side conveyor belt pair is supported by the other end movable support. The other end of the pulley group is rotatably supported by the member and the second intermediate movable support member, and each of the rotating shafts that rotates the one end side and the other end side pulley group in synchronization with each other is movable by the other end. A motor that rotatably supports a shaft between the other end fixed support member fixed on the base outside the support member and the reference support member, and rotates the rotation shafts on the other end fixed support member, respectively. The board transfer device in the electronic component mounting device according to claim 3, wherein the device is mounted.

The substrate transport device in the electronic component mounting device according to claim 3, wherein the first and second intermediate movable support members are integrally formed.

The other end movable support member and the intermediate movable support member are each moved by a support member driving device on a support member rail that is disposed on the base and extends in a direction orthogonal to the longitudinal direction of the guide rail. The substrate transfer device according to any one of claims 1 to 5, wherein:

7. An electronic component mounting apparatus, comprising: a component supply device configured to supply a component to be mounted on the substrate, at least on one end side of the substrate transfer device according to claim 1. .