JP3644020B2 - Origami depositing device - Google Patents

Origami depositing device Download PDF

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JP3644020B2
JP3644020B2 JP2002341217A JP2002341217A JP3644020B2 JP 3644020 B2 JP3644020 B2 JP 3644020B2 JP 2002341217 A JP2002341217 A JP 2002341217A JP 2002341217 A JP2002341217 A JP 2002341217A JP 3644020 B2 JP3644020 B2 JP 3644020B2
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presser
small bundle
pressing
bundle
members
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JP2004175478A (en
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健一 長山
満 川端
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Tokyo Kikai Seisakusho Co Ltd
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Tokyo Kikai Seisakusho Co Ltd
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Description

【0001】
【発明の属する技術分野】
この発明は、ずれ重なって搬送されてくる、新聞のような折帳を計数区分して堆積して小束とした後、この小束を交互に向きを変えて堆積し、機外へ搬出する折帳堆積装置に関する。
【0002】
【従来の技術】
従来、所定部数の折帳、例えば新聞を計数区分した小束を折帳堆積装置に順次落下させ積み重ねる場合に、小束の上面は、中央部分が用紙の厚みのままであるのに対し、折れ目側が折れ目の膨らみによって嵩を増すとともに、切れ目側が切断刃の作用した向きへの紙端の僅かな曲がりや、切れ目側に開けられている針穴周囲の盛り上がりによって嵩を増すことから、新聞の折れ目側及び切れ目側が盛り上がり、中央側が低いU字状に湾曲し、折れ目側がより高くなる。特に、ページ数の少ない新聞では、落下した小束の上面部分は、U字状に湾曲する傾向が強まるとともに、折れ目側の縁部と切れ目側の縁部の高さの差が大きくなる。その上に次の小束が落下すると、落下した小束によって押し潰されるときに、前記折れ目側の縁部が折り曲げられたり、湾曲面に沿って上部の何部かが切れ目側に滑って横にはみ出したりするなど、小束の揃いが悪く乱れた状態になる。このようなことが、小束が堆積するたびに繰り返されるとともに、最上段の小束の上面部分の湾曲が益々強くなり、堆積した小束の乱れによって大束の荷姿が悪くなる。
【0003】
堆積装置に堆積していく小束上面の前記各縁部の盛り上がりを押さえ、この小束の上に次の小束を落下させ、順次堆積して大束の新聞束とする技術に関しては、例えば、特許文献1に開示された技術が知られている。
【0004】
この特許文献1に記載されている技術は、ずれ重なって送られてくる折帳、例えば新聞を計数して所定部数の小束を作成し、堆積部で折帳を交互に堆積して大束を作成し、機外に搬出させるカウンタースタッカーに関するものであり、詳細には、折帳堆積装置に交互に堆積された小束の上面を押さえて平らにし、ページ数の少ない、いわゆる薄ページの新聞束の荷姿を良くしようとすることを目的としている。
【0005】
その構成は、対向して設けられた側板と底板とを有し、上方から落下する小束を堆積させる堆積部を備え、堆積部の小束落下経路に突出し、落下した小束の上面に当たるまで下降し、小束の上面を押さえる押え部材を、対向する前記側板に対応して2基それぞれを独立させて設けている。そして、その1基に係る構成についてより詳細に説明すると、側板及び底板を除く構成は、側板に設けられた縦向きの長溝に平行に設けられたガイドバーと、ガイドバーに取り付けられ上下移動可能な押え部材と、一端側をリンクを介し押え部材に連結されるとともに、他端側が前記ガイドバーの中心線と直角な中心線周りに角変位可能なアームと、アームの中間付近に接触してこれを押し上げ、アームを上方に角変位可能な上下動エアーシリンダーからなる。
【0006】
押え部材は、前記ガイドバーに沿って上下動可能に設けられたエアーシリンダー(以下、押え部シリンダーという)であり、そのシリンダーロッドは、前記側板の長溝から堆積部の小束落下経路に突出可能となっている。上下動エアーシリンダーは、シリンダーロッド先端部にローラー部材を有し、ローラー部材を前記アームの中間付近側縁に離隔可能に接触させてアームを支持し、シリンダーロッドの伸長又は縮退によってアームを角変位させ、押え部シリンダーを上昇又は下降させ得るようになっている。
【0007】
そしてこの特許文献1に開示されている押え部シリンダーの動作は、次のようである。
【0008】
第1の小束が堆積部に落下すると、待機位置にある押え部シリンダーのシリンダーロッドが伸長し、小束の落下経路に突出する。次に上下動エアーシリンダーのシリンダーロッドが縮退し、前記ローラー部材を介したシリンダーロッドの支えがなくなったアームは、アーム及び押え部シリンダーなどの自重による下向きの力に従って下方に角変位し、押え部シリンダーもシリンダーロッドを突出したまま下降する。その下降途中において、突出したままの前記シリンダーロッドが、堆積部に最初に落下した小束、すなわち第1の小束の上面に当たり、前記下向きの力と小束による反力とが均衡した位置で停止するとともに、押え部シリンダーを支持するアームの動作も止まる。一方、上下動エアーシリンダーのシリンダーロッドは、更に縮退を続け、前記ローラー部材が前記アームから離隔し、そして縮退を終了する。続いて、第1の小束の上面が、押え部シリンダーとアームの自重により押さえられている状態のまま第1の小束の上面に第2の小束が落下し、その後押え部シリンダーのシリンダーロッドが縮退し、押えを解放する。その後、再度上下動シリンダーのシリンダーロッドが伸長し、伸長途中に前記ローラー部材がアームに接し、アームを押し上げながら伸長する。前記押え部シリンダーは、上限に達すると次の第3の小束が落下するまで、シリンダーロッドを縮退させたままそこに待機する。
なお、押え部シリンダーなどの自重が縁部を十分に押さえるに不足であるときは、ばねを付加して調整してもよいことが示されている。
【0009】
【特許文献1】
特開平9−110279号公報(第3頁、図1〜図3、図6、図7)
【0010】
【発明が解決しようとする課題】
前記特許文献1に開示された技術には、次のような解決すべき課題があった。押え部材は、対向して設けられた側板の長溝に沿って自重で下降するようになっており、対向する前記長溝から小束の落下経路に向けて、それぞれ単独に設けられた前記押え部シリンダーから真っ直ぐに突出させたシリンダーロッド(以下、押えロッドという)が、小束の盛り上がりの大きい折れ目側の縁部と、盛り上がりの小さい切れ目側の縁部を有するU字状に湾曲した上面に、別々に自重によって当たるようになっているので、折れ目側と切れ目側との押さえた後の高さが異なり、左右を均等な高さに押えることができない。その結果、小束の上面が傾斜した状態となり、次に落下した小束が傾斜した上面に沿って滑り、荷姿が乱されるという課題があった。
【0011】
また、押え部シリンダーに接続されているアームは、ローラー部材を介して該アームと離隔可能に接している上下動エアーシリンダーのシリンダーロッドによって支えられているので、押え部シリンダー及びアームの自重などによる下降速度に限界がある。その結果、堆積部における小束堆積の処理の高速化を図れないという課題があった。
【0012】
さらに、押え部シリンダーの自重が小さい場合に、縁部を十分に押さえるべくばねを付加して調整するようにしても、折れ目側を押さえる力と切れ目側を押さえる力とをバランスよく調整するには、熟練を要するとともに調整時間もかかり、必要な調整をしきれないおそれがある。その結果、小束の上面は平らとはならず、傾斜した上面に落下した後続の小束の荷姿を乱してしまうという課題があった。
【0013】
さらにまた、前記特許文献1に開示されている技術の動作形態では、第2の小束が第1の小束の上に落下すると、第1の小束を押さえていた押えロッドが縮退し、その後、上昇し、第3の小束が落下するまで待機するようになっているので、この第2の小束の上面は、押さえられることなくU字状に盛り上がった状態である。この第2の小束の上面に第3の小束を落下させるようにしているので、両縁部が前記U字状に盛り上がっている第2の小束の上面部分の折帳は、落下した第3の小束によって押し潰されるときに折り曲げられたり、湾曲面に沿って上部の何部かが切れ目側に滑って横にはみ出したりするなど、小束の揃いを乱し、大束の荷姿を極めて悪くするという課題があり、下流工程での梱包時に荷崩れを起こすなど作業効率の低下にもなっていた。
【0014】
この発明は前記のことに鑑みなされたもので、堆積部に堆積する小束の上面を平らにすることができるとともに、崩さずに堆積でき、しかも大束処理を高速にできる等により、折帳堆積装置の堆積部から搬出される大束は、折帳のはみ出しや折れ曲がりのない良好な荷姿の大束として搬出され、下流工程での梱包時に荷崩れを起こすことなく作業がスムーズに行われるようになり、作業効率の向上が図られるとともに、折帳品質の維持向上が可能となるようにした折帳堆積装置を提供することを目的とするものである。
【0015】
【課題を解決するための手段】
上記目的を達成するために、この発明に係る折帳堆積装置は、複数の折帳からなる小束を交互に向きを変え、堆積部に堆積させて大束とし、この大束を搬出機構で搬出させる折帳堆積装置において、底面に搬出機構を備えた堆積部を挟んで搬出機構の搬出方向と平行な状態で対向する案内面を有し、堆積部の底面に対し直立しかつ堆積部の4隅を仕切って設けられ、前記対向する各案内面に少なくとも1つの鉛直方向の隙間を有するとともに、搬出機構の搬出方向の下流側の2隅を堆積部上の大束の搬出を妨げない位置まで角変位可能にした案内部材と、搬出機構の搬出方向と平行な中心線を略中心とした下方へ膨らむように円弧状に形成され案内部材の隙間に対応して設けられた押え部材と、押え部材を一体に支持する支持部材とからなり、対向する案内部材のそれぞれに対応させて設けられた一対の押え部と、押え部ごとに連結され、それぞれの押え部の押え部材を前記中心線周りに自身の円弧形状に倣うように角変位させることによって、押え部材を前記隙間から堆積部に対し進退させる進退駆動部材を有する進退機構と、進退機構を介して一対の押え部を支持する進退機構支持部材を有するとともに、この進退機構支持部材を鉛直方向に移動させることによって、堆積部を挟んで設けられた一対の押え部の押え部材を前記隙間に沿って鉛直方向に一体状に移動させる鉛直移動駆動部材を有する昇降機構とからなる構成となっている。
【0016】
そして前記折帳堆積装置において、鉛直移動駆動部材が、押え部の上昇速度と下降速度を個々に調整可能である動作速度調整手段を有し、鉛直移動駆動部材が、小束の上面を押える押え部材に付与する力を調整可能である押え力調整手段を有する構成になっている。
【0017】
【作 用】
前記構成の折帳堆積装置では、複数の折帳からなる小束は案内部材に案内されて堆積部に落下堆積される。押え部は昇降機構により昇降され、進退機構により角変位されて、これの押え部材が案内部材に設けた隙間から堆積部に対して進退される。
【0018】
堆積部に堆積された小束は、押え部材を堆積部の中に突出した状態で下降し、小束の両縁部(折れ目側部、切れ目側部)が押え部材により押さえ付けられる。その後、押え部はこれの押え部材が堆積部から後退し再び上昇される。この動作を順次繰り返して堆積部に堆積される小束は、その落下堆積の度にこれの両縁部が押え部材にて均等に押さえ付けられる。
【0019】
【発明の実施の形態】
次に、この発明に係る1つの実施の形態を図面を参照して説明する。この発明に係る折帳堆積装置1は、図1乃至図5に示すように、小束反転装置2の下方に設けられ、堆積部1aに堆積された大束8を搬出させる搬出機構3を備え、搬出機構3の搬送面31を底面として堆積部1aを形成するとともに、搬送方向と平行な状態で対向し、堆積する小束8a及び前記大束8の側方を案内する案内面に、鉛直方向の隙間44、44及び44a、44aを有する案内部材である側板4及び4aと、前記隙間44、44及び隙間44a、44aに対応し設けられる押え部5、5aと、前記押え部5、5aを堆積部1aに対し進退させる進退機構6、6aと、前記押え部5、5aを前記進退機構6、6aとともに鉛直方向に移動させる昇降機構7で構成される。
【0020】
小束反転装置2は従来技術のものと同様で、シャッター21上に折帳を複数部ずつ集積してなる小束を180度ずつ交互に向きを変えて堆積部1aに落下させるようになっている。
【0021】
前記搬出機構3は、プッシャー32とコンベヤー33から構成される。コンベヤー33は、幅方向に適宜な間隔を有して搬出方向と並行に2つ設けられたコンベヤーベルトで形成されている。この2つのコンベヤーベルトは、コンベヤー33の下流端側からモーター34で同時に駆動されるようになっている。また、前記側板4、4aで囲まれた堆積部1aのコンベヤー33上には、複数の小束8aを交互に向きを変えて堆積してなる大束8(図8(a)及び図8(b)参照)が作成され、該大束8は、モーター34の起動により駆動を開始する前記コンベヤー33によって、搬出方向の下流側に向け搬出されるようになっている。
【0022】
前記プッシャー32は、大束8を押す面が、堆積部1aの近傍、かつその外側の搬送方向上流側に位置するように設けられるとともに、大束8を後押しするに足る高さとなるように搬送面31に対し直立する方向に設けられている。また、プッシャー32は、大束8が前記コンベヤー33によって搬出されるときに、前記コンベヤー33の2つのコンベヤーベルトの間を、図示しない駆動手段によって、搬出方向に適宜な距離を適宜な速度で移動可能となっている。
【0023】
次に、側板4、4aは、図示しない支持部材によって支えられており、搬出機構3の搬出方向と平行な状態で対向し、前記搬出機構3の搬送面31に対し直立して設けられるとともに、各々対向する2つの鉛直方向の一方の隙間44、44、他方の隙間44a、44aによって3分割された一方の側板部材41、42、43及び他方の側板部材41a、42a、43aで構成される。側板4、4aの両側の側板部材41、43及び41a、43aは、L字形に形成されて堆積部1aの4隅を仕切っており、少なくとも搬出方向の上流側の2隅を仕切る側板部材43、43aは、L字に曲げられた部分の端部間に開放部分を設けている。この開放部分は、プッシャー32が通過可能な間隔を有している。
【0024】
搬出方向の下流側の2隅を仕切る側板部材41、41aは、大束8が搬出されるとき図示しない駆動手段によって、それぞれの軸45、45aを支点に、アーム46、46aを介して相反する方向に角変位して開き、大束8の搬出を妨げないようになっている。
【0025】
この発明に係る実施の形態では、側板4、4aが隙間44、44及び44a、44aによってそれぞれ側板部材41、42、43及び他方の側板部材41a、42a、43aに分割されているが、側板4、4aは、後に説明する押え部5、5aの動作を妨げない範囲で、隙間44、44及び44a、44aの上方部分と下方部分の一方又は両方が、連続又は連結されていて差し支えない。
【0026】
次に押え部5、5aは、前記側板4、4aの隙間44、44及び44a、44aに対応して設けられる押え部材51、51及び51a、51aと、押え部材51、51又は51a、51aをそれぞれ一体に支持する支持部材(以下、押え支持部材という)52及び52aからなる。前記押え部材51、51及び51a、51aは、適宜な半径からなる適宜な長さを有し、かつ下側へ膨らんだ円弧状をなす。
【0027】
押え支持部材52と一体となる押え部材51、51及び押え支持部材51aと一体となる押え部材51a、51aは、前記進退機構6、6aによって前記側板4、4aに設けられた前記隙間44、44及び44a、44aから、堆積部1aに対し進退可能であり、一方、進退機構6、6aを介して連結される前記昇降機構7によって鉛直方向に移動可能となっている。押え部材51、51及び51a、51aが、前記隙間44、44及び44a、44aから堆積部1aに対して突出したまま下方に移動することによって、堆積部1aに堆積された小束8aの最上面(図8(a)及び図8(b)参照)の折れ目側の縁部84及び切れ目側の縁部85を、それぞれ上方から押さえ得るようになっている。その後、押え部材51、51及び51a、51aは、前記円弧状に倣うようにして堆積部1aの外側に後退し得るようになっている。
【0028】
次に進退機構6、6aは、後に説明するように昇降機構7に取り付けられ、それぞれ押え部5、5aを進退移動させる進退駆動部材である流体圧シリンダー(以下、進退用シリンダーという)65、65aと、前記進退用シリンダー65、65aのシリンダーロッド66、66aの先端部に一端を連結され、かつ他端を角変位可能な軸63、63aの一端側に固定される第1アーム61、61aと、前記軸63、63aを角変位可能に支持する軸受部材64、64aと、前記軸63、63aの他端側に固定され、角変位可能な第2アーム62、62aで構成される。前記第2アーム62、62aの他端には、軸63、63aと平行かつ前記側板4、4aと平行に堆積部1aの外側に設けられた押え支持部材52、52aが一体となるように取り付けられる。
【0029】
そして、図示しない圧力流体源からの圧力流体が、図示しない方向切替弁と流量調整弁とに供給されることによって、前記進退用シリンダー65、65aのシリンダーロッド66、66aが伸長又は縮退し、シリンダーロッド66、66aの先端部に連結されている前記第1アーム61、61aを角変位させ、軸63、63aを介して第2アーム62、62aに一体となる押え部5、5aを角変位させるようになっている。
【0030】
次に昇降機構7は、前記搬出機構3のプッシャー32よりも搬送方向の上流側に設けられ、昇降可能な進退機構支持部材である基台71と、折帳堆積装置1のフレーム11、11aに掛け渡された上方側ステー74及び下方側ステー74aと、前記下方側ステー74aの中間部にシリンダーロッド73の先端部を鉛直方向上方へ向けて取り付けられた鉛直移動駆動部材である流体圧シリンダー(以下、昇降用シリンダーという)72と、前記シリンダーロッド73の先端部に一端面が連結され、かつ前記一端面に直角な面が基台71の長手方向中間部の側面に取り付けられる接続部材71aと、接続部材71aの前記直角な面の反対面に取り付けられるスライドブロック75と、スライドブロック75を滑走可能に案内するために直立し、一端側を前記下方側ステー74aに取り付けられ、他端側を前記上方側ステー74にそれぞれ取り付けられたガイドバー76と、シリンダーロッド73の動作速度を調整する動作速度調整手段である流量調整装置77、77aと、圧力流体の圧力を調整する押え力調整手段である圧力調整装置78と、圧力流体の供給経路を切り替える方向切替弁79で構成される。
【0031】
前記基台71の上面の両端部には、それぞれ前記進退機構6、6aの軸受部材64、64aが取り付けられ、基台71の前記上面に直角な側面には、進退用シリンダー65、65aの一端部が取り付けられており、進退機構6、6a及び押え部5、5aは、昇降機構7の動作により一体となって同時に下降又は上昇するようになっている。
【0032】
伸長又は縮退する前記シリンダーロッド73の速度、すなわち押え部5、5aの昇降速度は、流量調整装置77、77aを操作し、昇降用シリンダー72へ供給される圧力流体の流量を調整することによって、適宜に設定することが可能であり、また押え部5、5aの押え部材51、51及び51a、51aによる小束8aの上面の押え力、すなわち昇降用シリンダー72の縮退方向の作動力は、圧力調整装置78を操作し、圧力流体の圧力を調整することによって、適宜に調整することが可能であり、小束を形成する折帳の折畳部分の膨らみの反発力によって、小束8aの上面を押さえる押え部材51、51及び51a、51aが押し戻されないようになっている。このとき、押え部材51、51及び51a、51aは同じ力で小束を押さえる。
【0034】
次に、この発明に係る折帳堆積装置1の1つの実施形態における作用について、図1乃至図5を参照し説明する。図2及び図5に示すように、押え部5、5aの押え部材51、51及び51a、51aは、側板4、4aの上方外側に待機している。押え部5、5aが待機している状態とは、昇降機構7の昇降用シリンダー72のシリンダーロッド73が伸長して進退機構6、6aが上限にあり、かつ進退機構6、6aの進退用シリンダー65、65aのシリンダーロッド66、66aが縮退して、押え部材51、51及び51a、51aが側板4、4aの外側にある状態をいう。
【0035】
押え部5、5aが待機状態にあり、小束反転装置2のシャッター21,21に受け止められている小束8aが、前記シャッター21、21の開放によって堆積部1aに落下すると、進退用シリンダー65、65aのシリンダーロッド66、66aが略同時に伸長し、シリンダーロッド66、66aの先端部に接続されている第1アーム61、61aが軸受部材64、64aに支持された軸63、63aを中心にして角変位する。すると、前記軸63、63aの他端に設けられる第2アーム62、62aが角変位し、第2アーム62、62aの他端に一体となって設けられた押え支持部材52、52aが、側板4、4aに近づく方向に角変位し、これにより、前記押え支持部材52、52aに設けられている押え部材51、51及び51a、51aは、隙間44、44及び44a、44aから堆積部1aの中に向け進入する。
【0036】
すなわち、前記シリンダーロッド66、66aが伸長すると押え部材51、51及び51a、51aは、堆積部1aの中に突出する。次いで、押え部材51、51及び51a、51aが突出したまま昇降用シリンダー72が動作し、押え部材51、51及び51a、51aを同時に動作させるべくシリンダーロッド73が縮退し、シリンダーロッド73の先端部に接続された接続部材71aが、ガイドバー76に案内されるスライドブロック75とともに下降する。前記接続部材71aが一体となるように取り付けられている基台71は、進退機構6、6aとともに下降する。
【0037】
これにより、押え支持部材52、52aに取り付けられている押え部材51、51及び51a、51aは、側板4、4aの隙間44、44及び44a、44aから堆積部1aの中に突出した状態で同時に下降し、すでに落下し堆積している小束8aの上面の各縁部84、85を、昇降用シリンダー72によって左右均等に押さえ付け、新聞の用紙の間に存在する空気、すなわち小束8aの内部に存在する空気の大半を押し出し、小束8aの上面を平らにする。
【0038】
次に、前記各縁部84、85の押えを解放し、押え部5、5aを前記待機位置に復帰させるときは、進退用シリンダー65、65aが動作し、シリンダーロッド66、66aが縮退すると、軸63、63aを中心にして、シリンダーロッド66、66aの先端部に接続されている第1アーム61、61aが前記押え部材51、51及び51a、51aの突出時とは逆の方向に角変位し、それぞれの押え支持部材52、52aが円弧移動する。前記押え支持部材52、52aに取り付けられている押え部材51、51及び51a、51aが、それ自身の円弧状の形に倣うように堆積部1aから後退するので、各縁部84、85を押さえながら後退している間は、各縁部84、85の高さを変化させることはない。
【0039】
各縁部84、85を押さえている押え部材51、51及び51a、51aが、進退機構6、6aの働きによって側板4、4aの外側へ向け後退し待避すると、昇降用シリンダー72が動作し、押え部材51、51及び51a、51aを同時に上昇させるべくシリンダーロッド73が伸長する。スライドブロック75を介してガイドバー76に案内され上昇する基台71上の進退機構6、6aは、上限に達し所定の待機位置に復帰する。そして、次の動作指令が発せられるまで、そこで待機する。
【0040】
このようにして押え部5、5aは、進退機構6、6a及び昇降機構7によって順次動作するようになっている。このとき、堆積部1a内への小束8aの堆積数が増加するごとに、堆積部1a内の小束8aの高さが順次高くなり、押え部5、5aの押え部材51、51及び51a、51aによる押え位置も順次高くなる。このため、押え部5、5aの待機状態からの下降ストロークは順次短くなるが、圧力調整装置8にて昇降用シリンダー72の縮退方向の作動力が設定されていることにより、押え部5、5aの押え部材51、51及び51a、51aによる押え力は一定に維持される。
【0041】
以下、この発明に係る折帳堆積装置1の実施の形態における動作形態について図面を参照し説明する。
【0042】
第1の動作形態は、図6(a)乃至図6(g)に示すように、押え部5、5aの押え部材51、51及び51a、51a(以下、押え部材51、51aという)が、堆積部1aに小束8aが堆積する度に堆積した小束8a(81)の上面を押さえ、次の小束8a(82)が堆積する前に押さえを一旦解放して待機位置に戻り、前記次の小束8a(82)の上面を押さえる動作を基本とし、押え部材51、51aが、予め定められた小束の数に達する直前の小束8aの上面を押さえてから待機位置に戻り、最終の小束8aの上面を押さえずに、1つの大束に対する一連の動作工程を終了するようにしたものである。そして、最終の小束8aが堆積され大束8が作成されると、搬出機構3(図5参照)によって大束8が搬出されるようになっている。
【0043】
この動作形態は、1部1部がしっかりとした形を保ち得る新聞で、比較的新聞1部のページ数が多く、かつ少ない部数で構成された小束8aを堆積処理する場合に適用される動作形態である。もちろん、比較的1部のページ数が少ない新聞で構成された小束8aを堆積処理する場合にも適用し得るものである。以下、図を追って説明する。
【0044】
押え部材51、51aが待機位置にあって、大束8は既に機外に搬送され、堆積部1aは空となっている(図6(a)参照)。堆積部1aに第1の小束81が堆積される(図6(b)参照)と、進退機構6、6aによって押え部材51、51aは、堆積部1aの中に向け前進し突出するとともに、昇降機構7によってそのまま下降し、第1の小束81の上面の各縁部84、85を押さえる(図6(c)参照)。その結果、小束8aの内部に存在する空気の大半が抜け、第1の小束81の膨らみが取れて上面が平らになる。押え部材51、51aは、第2の小束82が堆積する前に、進退機構6、6aによって堆積部1aから後退し、側板4、4aの外へ待避するとともに、昇降機構7によってそのまま待機位置まで上昇し(図6(d)参照)待機する。
【0045】
上面の膨らみを取られて平らになった第1の小束81の上に、小束反転装置2にて180度反転された第2の小束82が堆積する(図6(e)参照)と、前記第1の小束81の堆積後の動作工程と同様に、押え部材51、51aが堆積部1aに突出して下降し、第1の小束81の上に堆積された膨らみのある第2の小束82の上面の各縁部84、85を押さえ(図6(f)参照)、第2の小束82の上面を平らにする。その後、押え部材51、51aは堆積部1aから後退し、側板4、4aの外へ待避するとともに、そのまま待機位置まで上昇し(図6(g)参照)待機する。これらの動作を予め定められた回数繰り返す。
【0046】
第2の動作形態は、図7(a)乃至図7(i)に示すように、押え部材51、51aが堆積部1aに小束8aが堆積する度に堆積した小束8a(81)の上面を押さえ、押さえたままの状態で次の小束8a(82)を堆積させてから、押え部材51、51aが押さえを解放して待機位置に戻り、再度、前記次の小束8a(82)の上面を押さえる動作を基本とし、押え部材51、51aが、予め定められた小束8aの数に達する最終の小束8aを堆積させてから待機位置に戻り、この最終の小束8aの上面を押さえることなく、1つの大束8に対する一連の動作工程を終了するようにしたものである。そして、前記したように最終の小束8aが堆積されてから、前記押え部材51、51aの押さえが解放され、搬出機構3によって大束8が搬出されるようになっている。
【0047】
この動作形態は、1部1部がしっかりとした形を保ちにくい新聞で、比較的新聞1部のページ数が少なく、かつ多くの部数で構成された小束8aを堆積処理する場合に適用される動作形態である。もちろん、1部1部がしっかりとした形を保ちやすい、比較的1部のページ数が多い新聞で構成された小束8aを堆積処理する場合にも適用し得るものである。以下、図を追って説明する。
【0048】
押え部材51、51aが待機位置にあって、大束8は機外に搬送され、堆積部1aが空となっている(図7(a)参照)。堆積部1aに第1の小束81が堆積する(図7(b)参照)と、進退機構6、6aによって押え部材51、51aは、堆積部1aの中に向け前進し突出するとともに、昇降機構7によってそのまま下降し、第1の小束81の上面の各縁部84、85を押さえる(図7(c)参照)。その結果、小束8aの内部に存在する空気の大半が抜け、第1の小束81の前記各縁部84、85の膨らみが取れて上面が平らになる。押え部材51、51aは、第2の小束82が第1の小束81の上に堆積されるまで、第1の小束81を押さえている(図7(d)参照)。前記第2の小束82が堆積すると、進退機構6、6aによって押え部材51、51aは堆積部1aから後退して側板4、4aの外へ待避するとともに、昇降機構7によってそのまま待機位置まで上昇する(図7(e)参照)。上昇し終わると、進退機構6、6aによって押え部材51、51aが再び堆積部1aの中に向け前進し突出するとともに、昇降機構7によって再び下降し、第2の小束82の上面の各縁部84、85を押さえる(図7(f)参照)。すると、この第2の小束82の内部に存在する空気の大半が抜け、第2の小束82の上面の各縁部84、85の膨らみが取れて上面が平らになる。押え部材51、51aによって押さえられている第2の小束82の上に、第3の小束83が堆積するまで、第2の小束82を押さえている(図7(g)参照)。前記第3の小束83が堆積すると、前記第2の小束82が堆積したときと同様に、押え部材51、51aが後退して側板4、4aの外へ待避するとともに、そのまま待機位置まで上昇する(図7(h)参照)。上昇し終わると、進退機構6、6aによって押え部材51、51aが再び堆積部1aの中に向け前進し突出し、昇降機構7によって再び下降する。そして押え部材51、51aは、次の小束83が堆積するまで、第3の小束83の上面の各縁部84、85を押さえる(図7(i)参照)。これらの動作を予め定められた回数繰り返す。
【0049】
なお、第1の動作形態及び第2の動作形態では、昇降機構7及び進退機構6、6aによって動作する押え部5、5aの押え部材51、51aが、前記したように一連の動作工程を完了し、かつ堆積部1aの小束8aが所定の数に達して大束8が作成されると、搬出機構3によって大束8が機外に搬出され、再び前記動作工程に従って動作するようになっている。
【0050】
この実施の形態における側板4,4aは、この側板4、4aの平面形状に棒部材を垂直に並べた棒部材からなる案内部材に置き換えてもよい。そしてこの場合、搬出方向の下流側部分に位置して堆積部1aから堆積物を排出する際に邪魔になる複数の棒材を一体状に開閉するようにする。
【0051】
【発明の効果】
この発明の実施により、昇降機構に一体となるように進退機構を設け、かつ前記進退機構に一体となるように押え部を設けたので、小束上面の両縁部を押さえ、堆積部に堆積する小束の上面の両縁を均等の力にて平らにすることが可能となった。
【0052】
また、小束が堆積部に落下し堆積する度に、昇降機構によって左右の押え部が、昇降機構の基台とともに同時に強制下降することによって、堆積した小束上面の両縁部を均等な高さに押さえて、小束の上面を平らにすることができるので、後続して落下し堆積する小束を崩さずに堆積させることが可能となった。
【0053】
さらに、昇降機構に速度調整可能な駆動部を設けたので、押え部の上昇速度と下降速度を個々に適宜調整可能となり、小束を堆積させて大束を作成する折帳堆積装置の大束処理速度の高速化が可能となった。
【0054】
さらに、また昇降機構に、小束上面を押さえる押え部に付与する力を調整可能な駆動部を設け、堆積部に落下し堆積した小束の上面を適宜な力で押さえ得るように調整可能となったので、不十分な押えによって傾斜が残ったままの小束上面に後続小束が落下することによって乱れ、横滑りや折れ曲がって堆積したり、過度な押えによって小束上面に押え跡が付いたりするようなことを解消することが可能となった。
【0055】
そして、上記効果が相俟って、折帳堆積装置の堆積部から搬出される大束は、折帳のはみ出しや折れ曲がりのない良好な荷姿の大束として搬出され、下流工程での梱包時に荷崩れを起こすことなく作業がスムーズに行われるようになり、作業効率の向上が図られたとともに、折帳品質の向上が可能となった。
【図面の簡単な説明】
【図1】この発明に係る折帳堆積装置の1つの実施の形態を小束反転装置と昇降機構の一部を省略して示す平面図である。
【図2】図1のA−A矢視における部分断面正面図である。
【図3】図1のB−B矢視における部分断面側面図である。
【図4】図1のB−B矢視における図3とは異なる部分の部分断面側面図である。
【図5】図1の部分断面斜視図である。
【図6】(a)〜(g)は、この発明に係る折帳堆積装置の実施の形態における第1の動作形態の動作説明図である。
【図7】(a)〜(i)は、この発明に係る折帳堆積装置の実施の形態における第2の動作形態の動作説明図である。
【図8】(a)、(b)は、この発明に係る堆積部において堆積した小束の堆積状態の斜視図であり、(a)は、第1の小束の上に第2の小束が堆積したときの荷姿を示す斜視図、(b)は、小束が複数堆積されたときの荷姿を示す斜視図である。
【符号の説明】
1…折帳堆積装置
1a…堆積部
11、11a…フレーム
2…小束反転装置
21…シャッター
3…搬出機構
31…搬送面
32…プッシャー
33…コンベヤー
34…モーター
4、4a…側板(案内部材)
41、42、43…側板部材
41a、42a、43a…側板部材
44、44a…隙間
45、45a…軸
46、46a…アーム
5、5a…押え部
51、51a…押え部材
52、52a…押え支持部材(押え部材)
6、6a…進退機構
61、61a…第1アーム
62、62a…第2アーム
63、63a…軸
64、64a…軸受部材
65、65a…進退用シリンダー(進退駆動部材)
66、66a…シリンダーロッド
7…昇降機構
71…基台(進退機構支持部材)
71a…接続部材
72…昇降用シリンダー(鉛直移動駆動部材)
73…シリンダーロッド
74…上方側ステー
74a…下方側ステー
75…スライドブロック
76…ガイドバー
77、77a…流量調整装置(動作速度調整手段)
78…圧力調整装置(押え力調整手段)
79…方向切換弁
8…大束
8a…小束
81…第1の小束
82…第2の小束
83…第3の小束
84…縁部(折れ目側)
85…縁部(切れ目側)
[0001]
BACKGROUND OF THE INVENTION
This invention counts and stacks newspapers, such as newspapers, that are transported in an overlapping manner, accumulates them into small bundles, and then stacks these small bundles by alternately changing the direction and carrying them out of the machine. The present invention relates to an origami depositing apparatus.
[0002]
[Prior art]
Conventionally, when a predetermined number of folding books, for example, small bundles of newspapers that have been counted and dropped, are sequentially dropped and stacked on a folding book depositing device, the upper surface of the small bundles are folded while the central portion remains the thickness of the paper. Since the eye side increases in volume due to the bulge of the fold, the cut side increases in volume due to slight bending of the paper edge in the direction in which the cutting blade acts, and bulge around the needle hole opened in the cut side. The crease side and the cut side are raised, the center side is curved in a low U shape, and the crease side becomes higher. In particular, in a newspaper with a small number of pages, the top surface portion of a small bundle that has fallen has a tendency to bend in a U-shape, and the difference in height between the edge on the fold side and the edge on the cut side increases. When the next small bundle falls on it, when it is crushed by the dropped small bundle, the edge on the fold side is bent, or some of the upper part slides to the cut side along the curved surface The bundle of small bundles is distorted because it protrudes to the side. This is repeated each time a small bundle is deposited, and the curvature of the upper surface portion of the uppermost small bundle becomes more and more intense, and the large bundle is deteriorated due to the disturbance of the accumulated small bundle.
[0003]
With regard to the technology for suppressing the rising of each edge on the upper surface of the small bundle to be deposited on the deposition apparatus, dropping the next small bundle on this small bundle, and sequentially depositing it into a large bundle of newspapers, for example, The technique disclosed in Patent Document 1 is known.
[0004]
The technique described in Patent Document 1 creates a predetermined number of small bundles by counting slips, for example, newspapers, which are sent in piles, and alternately stacks the signatures in a stacking unit to form a large bundle. The present invention relates to a counter stacker that is created and carried out of the machine, and more specifically, a so-called thin page newspaper bundle that has a small number of pages by pressing and flattening the upper surface of a small bundle that is alternately deposited on a folding stacking device. The purpose is to try to improve the packaging.
[0005]
The structure has a side plate and a bottom plate provided opposite to each other, and includes a stacking unit that deposits a small bundle that falls from above, protrudes into the small bundle dropping path of the stacking unit, and hits the upper surface of the dropped small bundle Two pressing members that descend and press the upper surface of the small bundle are provided independently corresponding to the opposing side plates. Then, the configuration according to the one will be described in more detail. The configuration excluding the side plate and the bottom plate is a guide bar provided in parallel with the longitudinal long groove provided on the side plate, and is vertically movable attached to the guide bar. A pressing member, an arm whose one end is connected to the pressing member via a link, and whose other end is angularly displaceable about a center line perpendicular to the center line of the guide bar, It consists of a vertically moving air cylinder that can push up and angularly displace the arm upward.
[0006]
The presser member is an air cylinder (hereinafter referred to as a presser part cylinder) that can be moved up and down along the guide bar. The cylinder rod can protrude from the long groove of the side plate into the small bundle drop path of the stacking part. It has become. The vertically moving air cylinder has a roller member at the tip of the cylinder rod. The roller member is brought into contact with the side edge near the middle of the arm so as to be separable, and the arm is angularly displaced by extending or retracting the cylinder rod. The presser part cylinder can be raised or lowered.
[0007]
The operation of the presser part cylinder disclosed in Patent Document 1 is as follows.
[0008]
When the first small bundle falls on the stacking portion, the cylinder rod of the presser portion cylinder at the standby position expands and projects into the small bundle dropping path. Next, the cylinder rod of the vertically moving air cylinder is retracted, and the arm that is no longer supported by the cylinder rod via the roller member is angularly displaced downward according to the downward force due to its own weight, such as the arm and the presser part cylinder. The cylinder also descends with the cylinder rod protruding. In the middle of the descent, the cylinder rod that remains protruding hits the small bundle that first dropped on the stacking portion, that is, the upper surface of the first small bundle, and the downward force and the reaction force by the small bundle are balanced. While stopping, the movement of the arm that supports the presser part cylinder also stops. On the other hand, the cylinder rod of the vertically moving air cylinder continues to degenerate further, the roller member moves away from the arm, and the degeneration ends. Subsequently, the second small bundle falls on the upper surface of the first small bundle while the upper surface of the first small bundle is pressed by the weight of the presser cylinder and the arm, and then the cylinder of the presser cylinder. The rod retracts and releases the presser foot. Thereafter, the cylinder rod of the vertically moving cylinder is extended again, and the roller member comes into contact with the arm during the extension, and extends while pushing up the arm. When the upper part reaches the upper limit, the presser part cylinder waits there with the cylinder rod retracted until the next third small bundle falls.
It is shown that when the weight of the presser part cylinder or the like is insufficient to sufficiently press the edge, adjustment may be made by adding a spring.
[0009]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-110279 (page 3, FIGS. 1-3, 6 and 7)
[0010]
[Problems to be solved by the invention]
The technique disclosed in Patent Document 1 has the following problems to be solved. The presser member descends by its own weight along the long groove of the side plate provided opposite to each other, and the presser part cylinder provided independently from each of the opposing long groove toward the drop path of the small bundle. A cylinder rod (hereinafter referred to as a presser rod) that protrudes straight from the upper surface of the U-shaped curve having an edge on the side of the fold where the bulge of the small bundle is large, and an edge on the side of the line of cut where the bulge is small, Since it hits separately by its own weight, the fold side and the cut side have different heights after pressing, and the left and right sides cannot be pressed to an equal height. As a result, there was a problem that the upper surface of the small bundle was inclined, and then the small bundle that fell was slipped along the inclined upper surface, and the load appearance was disturbed.
[0011]
In addition, the arm connected to the presser part cylinder is supported by the cylinder rod of the vertically moving air cylinder which is in contact with the arm through the roller member so as to be separated from the arm. There is a limit to the descending speed. As a result, there has been a problem that it is not possible to increase the processing speed of the small bundle accumulation in the accumulation portion.
[0012]
Furthermore, when the weight of the presser part cylinder is small, even if it is adjusted by adding a spring to hold the edge sufficiently, the force to hold the fold side and the force to hold the cut side can be adjusted in a well-balanced manner. Requires skill and adjustment time, and there is a possibility that necessary adjustment cannot be performed. As a result, the upper surface of the small bundle is not flat, and there is a problem that the subsequent small bundle dropped on the inclined upper surface is disturbed.
[0013]
Furthermore, in the operation mode of the technique disclosed in Patent Document 1, when the second small bundle falls onto the first small bundle, the presser rod that has pressed the first small bundle is retracted, After that, since it rises and waits until the third small bundle falls, the upper surface of the second small bundle is in a state of rising in a U shape without being pressed. Since the third small bundle is dropped on the upper surface of the second small bundle, the folded book on the upper surface portion of the second small bundle whose both edges are raised in the U shape has dropped. The bundle of large bundles is disturbed, such as being folded when crushed by the third small bundle, or some parts of the upper part along the curved surface slide to the side of the cut and protrude laterally. There is a problem of extremely worsening the work efficiency, which causes a reduction in work efficiency, such as causing collapse of goods during packing in the downstream process.
[0014]
The present invention has been made in view of the above, and it is possible to flatten the upper surface of a small bundle deposited on the deposition portion, to deposit without collapsing, and to perform a large bundle processing at high speed. Large bundles transported from the stacking unit of the equipment are transported as large bundles with good packing without any folding or folding of the booklet, and work can be carried out smoothly without collapsing when packing in the downstream process. It is an object of the present invention to provide a signature depositing apparatus that can improve work efficiency and maintain and improve signature quality.
[0015]
[Means for Solving the Problems]
In order to achieve the above-described object, the folding book depositing apparatus according to the present invention alternately changes the direction of small bundles made up of a plurality of folding books, accumulates them in the depositing section to form large bundles, and carries out the large bundles with a carry-out mechanism. The origami depositor has a guide surface that faces the bottom surface of the depositing section in parallel with the unloading direction of the unloading mechanism across the stacking section with the unloading mechanism on the bottom surface. And provided at the four corners of the deposition part, At least one vertical gap in the guide surface At the same time, the two corners on the downstream side of the carry-out mechanism in the carry-out direction can be angularly displaced to a position that does not hinder the carry-out of the large bundle on the stacking section. The guide member and the center line parallel to the carry-out direction of the carry-out mechanism are substantially centered. did It is formed in an arc shape so as to swell downward It is provided corresponding to the gap of the guide member The presser member and the support member that supports the presser member integrally are provided corresponding to each of the opposing guide members. A pair of The presser is connected to each presser, and the presser member of each presser is placed around the center line. Just like your arc shape An advance / retreat mechanism having an advance / retreat drive member for advancing / retreating the presser member with respect to the accumulation portion from the gap by angular displacement, and an advance / retreat mechanism A pair of While having an advance / retreat mechanism support member that supports the presser part, by moving the advance / retreat mechanism support member in the vertical direction, A pair of sandwiches Hold the presser member of the presser part vertically along the gap. In one piece It is composed of an elevating mechanism having a vertically moving drive member to be moved.
[0016]
In the folding book depositing apparatus, the vertical movement driving member has an operation speed adjusting means capable of individually adjusting the ascending speed and the lowering speed of the pressing portion, and the vertical movement driving member holds the upper surface of the small bundle. The pressing force adjusting means is capable of adjusting the force applied to the member.
[0017]
[Operation]
In the signature depositing apparatus having the above-described configuration, a small bundle of signatures is guided by the guide member and dropped and deposited on the deposition portion. The presser part is moved up and down by the elevating mechanism, angularly displaced by the advance / retreat mechanism, and the presser member is advanced and retracted from the gap provided in the guide member.
[0018]
The small bundle accumulated in the accumulation portion is lowered in a state where the pressing member protrudes into the accumulation portion, and both edge portions (folded side portion and cut side portion) of the small bundle are pressed by the pressing member. Thereafter, the presser part is raised again with its presser member retracted from the accumulation part. This operation is sequentially repeated, and the small bundles deposited on the depositing portion are pressed evenly by the pressing member at both edges thereof every time the depositing is performed.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Next, one embodiment according to the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 5, the folding book depositing apparatus 1 according to the present invention includes a carry-out mechanism 3 that is provided below the small bundle reversing device 2 and carries out the large bundle 8 accumulated in the depositing unit 1a. The stacking portion 1a is formed with the transport surface 31 of the carry-out mechanism 3 as the bottom surface, and is opposed to the guide surface that is parallel to the transport direction and guides the side of the small bundle 8a and the large bundle 8 to be stacked. The side plates 4 and 4a, which are guide members having the gaps 44, 44 and 44a, 44a, the pressing parts 5, 5a provided corresponding to the gaps 44, 44 and the gaps 44a, 44a, and the pressing parts 5, 5a are stacked. The advancing / retreating mechanism 6, 6a for advancing / retreating the part 1a and the elevating mechanism 7 for moving the pressing part 5, 5a together with the advancing / retreating mechanism 6, 6a in the vertical direction.
[0020]
The small bundle reversing device 2 is the same as that of the prior art, and the small bundle formed by stacking a plurality of signatures on the shutter 21 is alternately turned by 180 degrees and dropped onto the deposition section 1a. Yes.
[0021]
The unloading mechanism 3 includes a pusher 32 and a conveyor 33. The conveyor 33 is formed of two conveyor belts provided at an appropriate interval in the width direction and in parallel with the carry-out direction. The two conveyor belts are simultaneously driven by a motor 34 from the downstream end side of the conveyor 33. A large bundle 8 (FIGS. 8A and 8B) is formed by accumulating a plurality of small bundles 8a on the conveyor 33 of the accumulation section 1a surrounded by the side plates 4 and 4a. The large bundle 8 is unloaded toward the downstream side in the unloading direction by the conveyor 33 which starts driving when the motor 34 is started.
[0022]
The pusher 32 is provided so that the surface for pushing the large bundle 8 is positioned in the vicinity of the stacking portion 1a and on the upstream side in the conveyance direction outside thereof, and the conveyance surface 31 is high enough to boost the large bundle 8. Is provided in a direction to stand upright. Further, when the large bundle 8 is carried out by the conveyor 33, the pusher 32 can be moved between the two conveyor belts of the conveyor 33 by a driving means (not shown) at an appropriate distance in an unloading direction. It has become.
[0023]
Next, the side plates 4 and 4a are supported by a support member (not shown), are opposed to each other in a state parallel to the unloading direction of the unloading mechanism 3, and are provided upright with respect to the transport surface 31 of the unloading mechanism 3. Each of the two side plate members 41, 42, 43 and the other side plate members 41 a, 42 a, 43 a divided into three by one gap 44, 44 in the vertical direction and the other gap 44 a, 44 a respectively facing each other. Side plate members 41, 43 and 41a, 43a on both sides of the side plates 4, 4a are formed in an L shape to partition the four corners of the depositing portion 1a, and at least the side plate members 43 that partition the two upstream corners in the carry-out direction, 43a is provided with an open portion between the ends of the portion bent into an L shape. This open portion has an interval through which the pusher 32 can pass.
[0024]
The side plate members 41 and 41a partitioning the two corners on the downstream side in the carry-out direction are directions opposite to each other via the arms 46 and 46a with the shafts 45 and 45a as fulcrums by driving means (not shown) when the large bundle 8 is carried out. It is opened by angular displacement to prevent the large bundle 8 from being unloaded.
[0025]
In the embodiment according to the present invention, the side plates 4, 4a are divided into the side plate members 41, 42, 43 and the other side plate members 41a, 42a, 43a by the gaps 44, 44 and 44a, 44a, respectively. 4a may be continuous or connected to one or both of the upper part and the lower part of the gaps 44, 44 and 44a, 44a as long as the operation of the presser parts 5, 5a described later is not hindered.
[0026]
Next, the presser portions 5, 5a include presser members 51, 51 and 51a, 51a provided in correspondence with the gaps 44, 44 and 44a, 44a of the side plates 4, 4a, and the presser members 51, 51 or 51a, 51a. The support members (hereinafter, referred to as “pressing support members”) 52 and 52a that are integrally supported respectively. The pressing members 51, 51 and 51a, 51a have an appropriate length having an appropriate radius, and have an arc shape that swells downward.
[0027]
The presser members 51, 51 integrated with the presser support member 52 and the presser members 51a, 51a integrated with the presser support member 51a are provided in the gaps 44, 44 provided in the side plates 4, 4a by the advance / retreat mechanism 6, 6a. And 44a, 44a can be moved back and forth with respect to the depositing portion 1a, and can be moved in the vertical direction by the elevating mechanism 7 connected via the advancing / retreating mechanisms 6, 6a. The pressing members 51, 51 and 51a, 51a move downward while protruding from the gaps 44, 44 and 44a, 44a with respect to the stacking portion 1a, so that the uppermost surface of the small bundle 8a deposited on the stacking portion 1a The fold side edge 84 and the cut side edge 85 of FIG. 8A and FIG. 8B can be pressed from above. Thereafter, the pressing members 51, 51 and 51a, 51a can be retracted to the outside of the deposition portion 1a so as to follow the arc shape.
[0028]
Next, the advancing / retreating mechanisms 6 and 6a are attached to the elevating mechanism 7 as will be described later, and are fluid pressure cylinders (hereinafter referred to as advancing / retreating cylinders) 65 and 65a which are advance / retreat driving members for moving the pressers 5 and 5a forward and backward, respectively. And first arms 61, 61a fixed at one end of shafts 63, 63a, one end of which is connected to the tip of cylinder rods 66, 66a of advance / retreat cylinders 65, 65a and the other end of which can be angularly displaced; , Bearing members 64 and 64a for supporting the shafts 63 and 63a so as to be angularly displaceable, and second arms 62 and 62a fixed to the other end side of the shafts 63 and 63a and capable of angular displacement. At the other end of the second arms 62 and 62a, presser support members 52 and 52a provided on the outer side of the stacking portion 1a in parallel with the shafts 63 and 63a and in parallel with the side plates 4 and 4a are attached. It is done.
[0029]
Then, when pressure fluid from a pressure fluid source (not shown) is supplied to a direction switching valve and a flow rate adjustment valve (not shown), the cylinder rods 66 and 66a of the advance / retreat cylinders 65 and 65a extend or retract, and the cylinder The first arms 61, 61a connected to the distal ends of the rods 66, 66a are angularly displaced, and the pressers 5, 5a integrated with the second arms 62, 62a are angularly displaced via the shafts 63, 63a. It is like that.
[0030]
Next, the elevating mechanism 7 is provided on the upstream side in the transport direction with respect to the pusher 32 of the unloading mechanism 3, and is attached to a base 71 that is an elevating / retracting mechanism supporting member and the frames 11, 11 a of the origami depositing apparatus 1. A fluid pressure cylinder (vertical movement drive member) mounted on the upper stay 74 and the lower stay 74a, which are stretched over, and a middle portion of the lower stay 74a with the tip of the cylinder rod 73 facing upward in the vertical direction. 72), a connecting member 71a whose one end surface is coupled to the tip of the cylinder rod 73, and a surface perpendicular to the one end surface is attached to the side surface of the intermediate portion in the longitudinal direction of the base 71. A slide block 75 attached to the opposite side of the perpendicular surface of the connecting member 71a, and an upright to guide the slide block 75 slidably, A guide bar 76 having a side attached to the lower stay 74a and the other end attached to the upper stay 74, and a flow rate adjusting device 77 that is an operating speed adjusting means for adjusting the operating speed of the cylinder rod 73; 77a, a pressure adjusting device 78 that is a pressing force adjusting means for adjusting the pressure of the pressure fluid, and a direction switching valve 79 that switches the supply path of the pressure fluid.
[0031]
Bearing members 64 and 64a of the advancing and retracting mechanisms 6 and 6a are attached to both ends of the upper surface of the base 71, respectively, and one end of the advancing and retracting cylinders 65 and 65a is attached to a side surface perpendicular to the upper surface of the base 71. The advancing / retreating mechanisms 6, 6 a and the pressing parts 5, 5 a are integrally lowered or raised together by the operation of the elevating mechanism 7.
[0032]
The speed of the cylinder rod 73 that extends or retracts, that is, the lifting speed of the presser portions 5 and 5a is adjusted by operating the flow rate adjusting devices 77 and 77a and adjusting the flow rate of the pressure fluid supplied to the lifting cylinder 72. The pressing force on the upper surface of the small bundle 8a by the pressing members 51, 51 and 51a, 51a of the pressing portions 5, 5a, that is, the operating force in the retracting direction of the lifting cylinder 72, can be set as appropriate. The adjustment device 78 is operated to adjust the pressure fluid pressure appropriately, and the upper surface of the small bundle 8a can be adjusted by the repulsive force of the bulge of the folded portion of the folding book forming the small bundle. The presser members 51, 51 and 51a, 51a that hold down are not pushed back. At this time, the pressing members 51, 51 and 51a, 51a hold the small bundle with the same force.
[0034]
Next, the operation of the embodiment of the folding book depositing apparatus 1 according to the present invention will be described with reference to FIGS. As shown in FIGS. 2 and 5, the pressing members 51, 51 and 51 a, 51 a of the pressing portions 5, 5 a are waiting on the upper outside of the side plates 4, 4 a. The state where the presser portions 5 and 5a are waiting means that the cylinder rod 73 of the lift cylinder 72 of the lift mechanism 7 is extended so that the advance / retreat mechanisms 6 and 6a are at the upper limit, and the advance and retreat cylinders of the advance and retract mechanisms 6 and 6a. The cylinder rods 66 and 66a of 65 and 65a are retracted, and the pressing members 51 and 51 and 51a and 51a are outside the side plates 4 and 4a.
[0035]
When the presser portions 5 and 5a are in a standby state and the small bundle 8a received by the shutters 21 and 21 of the small bundle reversing device 2 falls to the stacking portion 1a by opening the shutters 21 and 21, the advance / retreat cylinder 65 , 65a cylinder rods 66, 66a extend substantially simultaneously, and the first arms 61, 61a connected to the tip ends of the cylinder rods 66, 66a are centered on shafts 63, 63a supported by bearing members 64, 64a. Angular displacement. Then, the second arms 62 and 62a provided at the other ends of the shafts 63 and 63a are angularly displaced, and the presser support members 52 and 52a provided integrally with the other ends of the second arms 62 and 62a are provided on the side plates. 4 and 4a, so that the presser members 51, 51 and 51a, 51a provided on the presser support members 52 and 52a are moved from the gaps 44, 44 and 44a and 44a to the deposition portion 1a. Enter inside.
[0036]
That is, when the cylinder rods 66 and 66a are extended, the pressing members 51 and 51 and 51a and 51a protrude into the accumulation portion 1a. Next, the lifting cylinder 72 is operated with the pressing members 51, 51 and 51a, 51a protruding, the cylinder rod 73 is retracted to operate the pressing members 51, 51 and 51a, 51a simultaneously, and the tip of the cylinder rod 73 is moved. The connecting member 71 a connected to the lower part moves down together with the slide block 75 guided by the guide bar 76. The base 71 attached so that the connection member 71a is integrated is lowered together with the advance / retreat mechanisms 6 and 6a.
[0037]
As a result, the presser members 51, 51 and 51a, 51a attached to the presser support members 52, 52a are simultaneously projected from the gaps 44, 44 and 44a, 44a of the side plates 4, 4a into the accumulation portion 1a. The edges 84 and 85 of the upper surface of the small bundle 8a that has descended and has already fallen and accumulated are pressed evenly by the lifting cylinder 72, and the air existing between the newspaper sheets, that is, the small bundle 8a Most of the air present in the interior is extruded to flatten the top surface of the small bundle 8a.
[0038]
Next, when releasing the pressers of the edge portions 84 and 85 and returning the presser portions 5 and 5a to the standby position, the advancing / retreating cylinders 65 and 65a are operated, and the cylinder rods 66 and 66a are retracted. Centering on the shafts 63 and 63a, the first arms 61 and 61a connected to the tip portions of the cylinder rods 66 and 66a are angularly displaced in the direction opposite to that when the pressing members 51 and 51 and 51a and 51a protrude. Then, each presser supporting member 52, 52a moves in an arc. The presser members 51, 51 and 51a, 51a attached to the presser support members 52, 52a retreat from the stacking part 1a so as to follow the arcuate shape of the presser support members 52, 52a. However, the height of each edge part 84 and 85 is not changed during retreating.
[0039]
When the pressing members 51, 51 and 51a, 51a holding the edge portions 84, 85 are retracted toward the outside of the side plates 4, 4a by the action of the advance / retreat mechanism 6, 6a, the lifting cylinder 72 is operated. The cylinder rod 73 extends to raise the presser members 51, 51 and 51a, 51a simultaneously. The advancing / retreating mechanisms 6 and 6a on the base 71 that are guided by the guide bar 76 through the slide block 75 and move up reach the upper limit and return to the predetermined standby position. And it waits there until the next operation command is issued.
[0040]
In this way, the presser portions 5, 5 a are sequentially operated by the advance / retreat mechanisms 6, 6 a and the elevating mechanism 7. At this time, each time the number of small bundles 8a accumulated in the accumulation portion 1a increases, the height of the small bundles 8a in the accumulation portion 1a increases in order, and the holding members 51, 51 and 51a of the holding portions 5, 5a. , 51a, the presser position is also gradually increased. For this reason, the lowering stroke from the standby state of the presser portions 5 and 5a is sequentially shortened, but the pressure adjustment Device 8 Since the operating force in the retracting direction of the lifting cylinder 72 is set at, the pressing force by the pressing members 51, 51 and 51a, 51a of the pressing portions 5, 5a is kept constant.
[0041]
Hereinafter, an operation mode in the embodiment of the origami depositing apparatus 1 according to the present invention will be described with reference to the drawings.
[0042]
In the first operation mode, as shown in FIGS. 6A to 6G, the pressing members 51, 51 and 51a, 51a (hereinafter referred to as pressing members 51, 51a) of the pressing portions 5, 5a are used. Each time a small bundle 8a accumulates on the accumulation portion 1a, the upper surface of the accumulated small bundle 8a (81) is pressed, and before the next small bundle 8a (82) is deposited, the press is temporarily released and returned to the standby position. Based on the operation of pressing the upper surface of the next small bundle 8a (82), the pressing members 51 and 51a return to the standby position after pressing the upper surface of the small bundle 8a just before reaching the predetermined number of small bundles, A series of operation steps for one large bundle is completed without pressing the upper surface of the final small bundle 8a. When the final small bundle 8a is deposited and the large bundle 8 is created, the large bundle 8 is unloaded by the unloading mechanism 3 (see FIG. 5).
[0043]
This mode of operation is applied to the case where a stack of a small bundle 8a composed of a relatively large number of newspapers and a small number of copies is a newspaper in which one copy and one copy can maintain a firm shape. It is an operation form. Of course, the present invention can also be applied to a case where a small bundle 8a composed of a newspaper with a relatively small number of pages is deposited. This will be described below with reference to the drawings.
[0044]
The holding members 51 and 51a are in the standby position, the large bundle 8 has already been transported outside the apparatus, and the stacking portion 1a is empty (see FIG. 6A). When the first small bundle 81 is deposited on the accumulation portion 1a (see FIG. 6B), the pressing members 51 and 51a are advanced and protruded into the accumulation portion 1a by the advance and retreat mechanisms 6 and 6a. The elevating mechanism 7 moves down as it is and presses the edges 84 and 85 on the upper surface of the first small bundle 81 (see FIG. 6C). As a result, most of the air present in the small bundle 8a is released, the first small bundle 81 is swollen, and the upper surface becomes flat. Before the second small bundle 82 is deposited, the pressing members 51 and 51a are retracted from the accumulation portion 1a by the advance / retreat mechanisms 6 and 6a and are retracted out of the side plates 4 and 4a. (See FIG. 6D) and wait.
[0045]
On the first small bundle 81 which has been flattened by bulging the upper surface, the second small bundle 82 inverted by the small bundle reversing device 2 is deposited (see FIG. 6E). In the same manner as in the operation process after the first small bundle 81 is deposited, the pressing members 51 and 51a protrude and descend to the accumulation portion 1a, and the bulging first accumulated on the first small bundle 81 is obtained. The edges 84 and 85 on the upper surface of the second small bundle 82 are pressed (see FIG. 6F), and the upper surface of the second small bundle 82 is flattened. Thereafter, the presser members 51 and 51a are retracted from the stacking portion 1a, are retracted outside the side plates 4 and 4a, are lifted to the standby position as they are (see FIG. 6G), and are standby. These operations are repeated a predetermined number of times.
[0046]
As shown in FIGS. 7 (a) to 7 (i), the second operation mode is that the pressing members 51 and 51a of the small bundle 8a (81) accumulated every time the small bundle 8a accumulates on the accumulation portion 1a. After pressing the upper surface and depositing the next small bundle 8a (82), the pressing members 51 and 51a release the press to return to the standby position, and again, the next small bundle 8a (82) ), The pressing members 51 and 51a return to the standby position after depositing the final small bundle 8a reaching the predetermined number of small bundles 8a, and the final small bundle 8a A series of operation steps for one large bundle 8 is completed without pressing the upper surface. As described above, after the final small bundle 8a is accumulated, the pressing members 51 and 51a are released, and the large bundle 8 is carried out by the carry-out mechanism 3.
[0047]
This mode of operation is applied to a case where a copy of a small bundle 8a composed of a large number of copies and a relatively small number of pages of one copy of a newspaper is a newspaper in which a copy of one copy is difficult to keep firmly. This is an operation mode. Of course, the present invention can also be applied to the case where a small bundle 8a composed of a newspaper with a relatively large number of pages of one copy, which is easy to maintain a firm shape of one copy and one copy, is deposited. This will be described below with reference to the drawings.
[0048]
The presser members 51 and 51a are in the standby position, the large bundle 8 is conveyed outside the apparatus, and the stacking portion 1a is empty (see FIG. 7A). When the first small bundle 81 is accumulated in the accumulation portion 1a (see FIG. 7B), the pressing members 51 and 51a are advanced and protruded into the accumulation portion 1a by the advancing / retreating mechanisms 6 and 6a and are moved up and down. The mechanism 7 moves down as it is, and presses the edges 84 and 85 on the upper surface of the first small bundle 81 (see FIG. 7C). As a result, most of the air present in the small bundle 8a is released, the bulges of the respective edges 84 and 85 of the first small bundle 81 are removed, and the upper surface becomes flat. The holding members 51 and 51a hold the first small bundle 81 until the second small bundle 82 is deposited on the first small bundle 81 (see FIG. 7D). When the second small bundle 82 is accumulated, the pressing members 51 and 51a are retracted from the accumulation portion 1a by the advance / retreat mechanisms 6 and 6a and are retracted from the side plates 4 and 4a, and are lifted to the standby position by the elevating mechanism 7 as they are. (See FIG. 7 (e)). When the lifting is finished, the pressing members 51 and 51a are again advanced and protruded into the stacking portion 1a by the advance and retreat mechanisms 6 and 6a, and are lowered again by the elevating mechanism 7 and are separated from each edge on the upper surface of the second small bundle 82. The parts 84 and 85 are pressed (see FIG. 7F). As a result, most of the air present in the second small bundle 82 is released, the bulges of the edges 84 and 85 on the upper surface of the second small bundle 82 are removed, and the upper surface becomes flat. The second small bundle 82 is pressed until the third small bundle 83 is deposited on the second small bundle 82 pressed by the pressing members 51 and 51a (see FIG. 7G). When the third small bundle 83 is accumulated, the presser members 51 and 51a are retracted and retracted to the outside of the side plates 4 and 4a as in the case where the second small bundle 82 is accumulated, and as it is to the standby position. It rises (see FIG. 7 (h)). When the lifting is finished, the pressing members 51 and 51a are again advanced and protruded into the accumulation portion 1a by the advance and retreat mechanisms 6 and 6a, and are lowered again by the elevating mechanism 7. Then, the pressing members 51 and 51a press the respective edge portions 84 and 85 on the upper surface of the third small bundle 83 until the next small bundle 83 is deposited (see FIG. 7 (i)). These operations are repeated a predetermined number of times.
[0049]
In the first operation mode and the second operation mode, the pressing members 51 and 51a of the pressing portions 5 and 5a operated by the elevating mechanism 7 and the advance / retreat mechanisms 6 and 6a complete a series of operation steps as described above. And when the small bundle 8a of the accumulation part 1a reaches a predetermined number and the large bundle 8 is created, the large bundle 8 is carried out of the apparatus by the carry-out mechanism 3, and again operates according to the operation process. .
[0050]
The side plates 4 and 4a in this embodiment may be replaced with a guide member made of a bar member in which bar members are arranged vertically in the planar shape of the side plates 4 and 4a. In this case, a plurality of bars that are located at the downstream portion in the carry-out direction and are obstructed when discharging the deposit from the depositing portion 1a are integrally opened and closed.
[0051]
【The invention's effect】
By implementing the present invention, the advance / retreat mechanism is provided so as to be integrated with the lifting mechanism, and the presser part is provided so as to be integrated with the advance / retreat mechanism, so that both edge portions of the upper surface of the small bundle are pressed and deposited on the accumulation portion. It has become possible to flatten both edges of the upper surface of the small bundle with equal force.
[0052]
In addition, each time a small bundle falls and accumulates on the stacking part, the left and right presser parts are forcibly lowered together with the base of the lifting mechanism at the same time, so that both edges of the upper surface of the stacked small bundle are evenly raised. Since the upper surface of the small bundle can be flattened by pressing, the small bundle that subsequently falls and accumulates can be deposited without breaking.
[0053]
In addition, the elevating mechanism is equipped with a speed-adjustable drive unit, so that the lifting and lowering speeds of the presser can be adjusted individually as needed, and the large bundle processing speed of the origami depositing device that accumulates small bundles to create large bundles Can be speeded up.
[0054]
Furthermore, the elevating mechanism is provided with a drive unit that can adjust the force applied to the presser part that presses the upper surface of the small bundle, and can be adjusted so that the upper surface of the small bundle that has dropped and accumulated on the stacking unit can be pressed with an appropriate force. As a result, it is disturbed by the subsequent small bundle falling on the upper surface of the small bundle where the inclination remains due to insufficient presser foot, and it accumulates as a side slide or bent, or the upper surface of the small bundle has a press mark due to excessive presser foot. It has become possible to eliminate such things.
[0055]
Combined with the above effects, a large bundle unloaded from the stacking unit of the folding stacking device is unloaded and folded as a large bundle with good packing, and collapsed during packing in the downstream process. As a result, the work can be carried out smoothly without causing problems, and the work efficiency can be improved and the quality of the signature can be improved.
[Brief description of the drawings]
FIG. 1 is a plan view showing one embodiment of a folding book depositing apparatus according to the present invention, omitting a part of a small bundle reversing device and a lifting mechanism.
FIG. 2 is a partial cross-sectional front view taken along the line AA in FIG.
FIG. 3 is a partial cross-sectional side view taken along the line BB in FIG. 1;
4 is a partial cross-sectional side view of a portion different from FIG. 3 as viewed in the direction of arrows BB in FIG. 1;
FIG. 5 is a partial cross-sectional perspective view of FIG. 1;
FIGS. 6A to 6G are operation explanatory views of a first operation mode in the embodiment of the folding book depositing apparatus according to the present invention. FIGS.
FIGS. 7A to 7I are operation explanatory views of a second operation mode in the embodiment of the folding book depositing apparatus according to the present invention. FIGS.
FIGS. 8A and 8B are perspective views of the accumulation state of small bundles accumulated in the accumulation portion according to the present invention, and FIG. 8A shows a second small bundle on the first small bundle. FIG. 5B is a perspective view showing a load form when a bundle is accumulated, and FIG. 5B is a perspective view showing a load form when a plurality of small bundles are accumulated.
[Explanation of symbols]
1 ... Origami depositing device
1a ... Deposition part
11, 11a ... Frame
2 ... Small bundle reversing device
21 ... Shutter
3 ... Unloading mechanism
31 ... Conveying surface
32 ... Pusher
33 ... Conveyor
34 ... Motor
4, 4a ... side plate (guide member)
41, 42, 43 ... side plate members
41a, 42a, 43a ... side plate member
44, 44a ... Gap
45, 45a ... axis
46, 46a ... Arm
5, 5a ... Presser part
51, 51a ... Presser member
52, 52a ... Presser support member (presser member)
6, 6a ... Advancing and retracting mechanism
61, 61a ... 1st arm
62, 62a ... second arm
63, 63a ... shaft
64, 64a ... Bearing member
65, 65a ... advance / retreat cylinder (advance / retreat drive member)
66, 66a ... cylinder rod
7 ... Lifting mechanism
71 ... Base (advance / retreat mechanism support member)
71a ... connecting member
72 ... Cylinder for elevating (vertical moving drive member)
73 ... Cylinder rod
74 ... Upper stay
74a ... Lower stay
75 ... Slide block
76 ... Guide bar
77, 77a ... Flow rate adjusting device (operation speed adjusting means)
78 ... Pressure adjusting device (pressing force adjusting means)
79 ... Directional switching valve
8 ... Large bundle
8a ... small bundle
81. First small bundle
82 ... second small bundle
83. Third small bundle
84 ... Edge (fold side)
85 ... Edge (cut side)

Claims (3)

複数の折帳からなる小束を交互に向きを変え、堆積部に堆積させて大束とし、この大束を搬出機構で搬出させる折帳堆積装置において、
底面に搬出機構を備えた堆積部を挟んで搬出機構の搬出方向と平行な状態で対向する案内面を有し、堆積部の底面に対し直立しかつ堆積部の4隅を仕切って設けられ、前記対向する各案内面に少なくとも1つの鉛直方向の隙間を有するとともに、搬出機構の搬出方向の下流側の2隅を堆積部上の大束の搬出を妨げない位置まで角変位可能にした案内部材と、
搬出機構の搬出方向と平行な中心線を略中心とした下方へ膨らむように円弧状に形成され案内部材の隙間に対応して設けられた押え部材と、押え部材を一体に支持する支持部材とからなり、対向する案内部材のそれぞれに対応させて設けられた一対の押え部と、
押え部ごとに連結され、それぞれの押え部の押え部材を前記中心線周りに自身の円弧形状に倣うように角変位させることによって、押え部材を前記隙間から堆積部に対し進退させる進退駆動部材を有する進退機構と、
進退機構を介して一対の押え部を支持する進退機構支持部材を有するとともに、この進退機構支持部材を鉛直方向に移動させることによって、堆積部を挟んで設けられた一対の押え部の押え部材を前記隙間に沿って鉛直方向に一体状に移動させる鉛直移動駆動部材を有する昇降機構と、
を設けたことを特徴とする折帳堆積装置。
In the orbital stacking apparatus in which small bundles composed of a plurality of orbitals are alternately turned and accumulated in the accumulation section to form a large bundle, and this large bundle is unloaded by the unloading mechanism.
It has a guide surface facing in a state parallel to the unloading direction of the unloading mechanism across the stacking portion provided with the unloading mechanism on the bottom surface, and is provided upright with respect to the bottom surface of the depositing portion and partitioning the four corners of the depositing portion, A guide member having at least one vertical gap on each of the opposing guide surfaces and capable of angular displacement at two corners on the downstream side in the carry-out direction of the carry-out mechanism to a position that does not hinder the carry-out of the large bundle on the deposition unit; ,
A pressing member provided to correspond to the gap arcuately formed guide member so as to carry-out direction parallel to the center line bulge downward to substantially the center of the discharge mechanism, a support member for supporting the pressing member integrally A pair of presser portions provided corresponding to each of the opposing guide members,
An advancing / retracting drive member that is connected to each presser part and that causes the presser member of each presser part to advance and retreat from the gap with respect to the stacking part by angularly displacing the presser member of each presser part around the center line so as to follow its arc shape. Advancing and retracting mechanism,
While having an advance / retreat mechanism support member that supports the pair of presser portions via the advance / retreat mechanism, and moving the advance / retreat mechanism support member in the vertical direction, the presser members of the pair of presser portions provided across the stacking portion An elevating mechanism having a vertical movement drive member that moves integrally in the vertical direction along the gap;
A origami depositing apparatus characterized by comprising:
鉛直移動駆動部材が、押え部の上昇速度と下降速度を個々に調整可能である動作速度調整手段を有する請求項1に記載の折帳堆積装置。  The origami depositing apparatus according to claim 1, wherein the vertical movement drive member has an operation speed adjusting means capable of individually adjusting an ascending speed and a descending speed of the pressing portion. 鉛直移動駆動部材が、小束の上面を押える押え部材に付与する力を調整可能である押え力調整手段を有する請求項1または請求項のいずれか1項に記載の折帳堆積装置。Vertical movement driving member, signature deposition apparatus according to any one of claims 1 or claim 2 having a pressing force adjusting means can adjust the force applied to the pressing member for pressing the upper surface of the small bundles.
JP2002341217A 2002-11-25 2002-11-25 Origami depositing device Expired - Fee Related JP3644020B2 (en)

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