JP3643523B2

JP3643523B2 - Paper sheet conveying and unloading apparatus and paper sheet processing apparatus

Info

Publication number: JP3643523B2
Application number: JP2000256222A
Authority: JP
Inventors: 秀樹小川; 秀記額田
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 2000-08-25
Filing date: 2000-08-25
Publication date: 2005-04-27
Anticipated expiration: 2020-08-25
Also published as: JP2002068490A

Description

【０００１】
【発明の属する技術分野】
本発明は、紙葉類搬送取り出し装置および紙葉類処理装置に係り、特にはがきや封書などの郵便物を一葉ずつ郵便物の束から取り出す紙葉類搬送取り出し装置および紙葉類処理装置に関する。
【０００２】
【従来の技術】
はがきや封書などの紙葉類を一葉ずつ取り出して宛先ごとに区分けを行う紙葉類処理装置は、紙葉類搬送取り出し装置と、情報読み取り装置と、紙葉類区分け装置とからなる。
【０００３】
紙葉類搬送取り出し装置は紙葉類が束状になった紙葉類束から一葉ずつ紙葉類を取り出し、情報読み取り装置は紙葉類搬送取り出し装置によって取り出された紙葉類に表示される宛先（郵便番号）などの情報を読み取り、紙葉類区分け装置は情報読み取り装置によって読み取られた情報に基づいて紙葉類を区分けする動作を行っていた。
【０００４】
ここで図11の従来の紙葉類搬送取り出し装置の上面図を参照して紙葉類搬送取り出し装置の構成・動作について詳しく述べる。
【０００５】
紙葉類搬送取り出し装置100は、載置台101、搬送ベルト103、紙葉類吸着装置104、バックアップ板105、側壁106、さばき板107、および分離機構108とから、また、紙葉類吸着装置104は、紙葉類取り出しベルト109、チャンバマスク110、真空チャンバ111、真空吸着用エアー管（図示しない）、ピン112、光電センサ113、および回転ローラ114m〜114oとからなる。
【０００６】
側壁106に接触して載置台101に載置された紙葉類束は、紙葉類束の最後部をバックアップ板105によって支持されながら搬送ベルト103が回転することによって搬送され紙葉類吸着装置104に導かれる。
【０００７】
紙葉類吸着装置104に導かれた紙葉類は、回転ローラ114m〜114oが回転することによって回転される紙葉類取り出しベルト109に接触し、この紙葉類取り出しベルト109表面に一定間隔で穿設された吸着孔に吸いつけられて一葉ずつ取り出される。紙葉類を吸着する吸着力はポンプなどによって真空吸着用エアー管を介して真空チャンバ111内を吸引することで得られる。
【０００８】
紙葉類取り出しベルト109によって吸着された紙葉類は、紙葉類のニ葉取りを防止するさばき板107、摩擦部材からなる分離機構108を通過して情報読み取り装置に送られる。
【０００９】
ところで、紙葉類が紙葉類取り出しベルト109によって取り出される紙葉類の取り出しは、搬送される紙葉類が紙葉類取り出しベルト109近傍に突出して設けられたピン112を押圧しこのピン112が押圧された量を光電センサ113によって検出し、この押圧量に応じて紙葉類吸着装置104近傍の搬送ベルト103の搬送速度が設定されこの設定された速度で紙葉類が搬送ベルト103で搬送されて取り出しが行われていた。例えば押圧量が小さければ搬送ベルト103の搬送速度を増加し、逆に押圧量が大きければ搬送ベルト103の搬送速度を減少、停止させたりしていた。
【００１０】
しかしながら、このような構成の紙葉類処理装置では、ピン112の押圧量を測定して紙葉類取り出しベルト109に対向する一葉の紙葉類の位置を検出し、この検出結果から搬送ベルト103の搬送速度を設定していたため、紙葉類の大きさや厚さが個々に異なっている場合や紙葉類の間の隙間の有無や大きさによっては、一定の速度で回転しながら紙葉類を吸着して取り出す紙葉類取り出しベルト109の取り出しタイミングにあわせて紙葉類を搬送することが困難であった。例えば紙葉類間に隙間があった場合には紙葉類が紙葉類取り出しベルト109に到達しておらず紙葉類が吸着されることなく紙葉類取り出しベルト109が回転してしまい実質空振り状態となり、また紙葉類間に隙間がない場合には連れ出しが発生するなどの問題が生じる恐れがあった。
【００１１】
したがって紙葉類取り出しベルト109による取り出しタイミングは一定であるがこのタイミングにあわせた搬送速度で紙葉類を搬送して取り出すことは、紙葉類の大きさや厚さ、または紙葉類間の状態が異なっている場合には困難であった。
【００１２】
【発明が解決しようとする課題】
そこで本発明は上記従来の問題点に鑑みてなされたもので、紙葉類の大きさや厚さ、紙葉類間の状態が異なっている場合であっても紙葉類の取り出しタイミングにあわせた搬送速度で紙葉類を搬送することにより取り出し効率を向上させた紙葉類搬送取り出し装置および紙葉類処理装置の提供を目的とする。
【００１３】
【課題を解決するための手段】
上記目的を達成するために本発明の紙葉類搬送取り出し装置は、
複数の紙葉類を載置可能な載置台と、
前記載置台上の前記紙葉類を立居状態で一定方向に搬送する複数の搬送ベルトと、
前記搬送ベルトで搬送された前記紙葉類を前記載置台から一葉ずつ所定のタイミングで取り出すことが可能な紙葉類取り出し手段と
を具備した紙葉類搬送取り出し装置において、
前記搬送ベルトは前記紙葉類が搬送される方向に、前記紙葉類が搬送される搬送速度を可変可能な、第1の搬送ベルトおよび前記第1の搬送ベルトよりも前記紙葉類取り出し手段側に設けられた第2の搬送ベルトからなり、
前記第1の搬送ベルトを回転させる複数の回転ローラのうち前記紙葉類取り出し手段側に設けられた回転ローラの回転軸と前記第2の搬送ベルトを回転させる複数の回転ローラのうち前記第1の搬送ベルト側に設けられた回転ローラの回転軸とが略同軸に配置されて前記第1の搬送ベルトで搬送された紙葉類を前記第2の搬送ベルトに渡すように配列されており、前記第1及び第2の搬送ベルトは前記紙葉類取り手段の紙葉類取り出しタイミングにあわせた速度で紙葉類を搬送し、
前記第1の搬送ベルトから前記第2の搬送ベルトへ紙葉類を渡す部分で前記第1および第2の搬送ベルト上を搬送されている前記立居状態の紙葉類の間に挿入され第1の紙葉類を含む第1の紙葉類束とこの立居状態の第1の紙葉類に隣り合う前記搬送方向上流側の第2の紙葉類を含む第2の紙葉類束とに分ける前記搬送方向及び略鉛直方向に移動可能であり、前記第1の紙葉類束を前記第2の搬送ベルトの搬送速度と略同一の搬送速度で前記搬送方向に搬送するレバーと、
前記第1の紙葉類と接触しながら前記搬送方向へ移動し前記紙葉類取り出し手段近傍で前記第1及び第2の紙葉類間から取り出される前記レバーに設けられ前記レバーが前記第1の紙葉類から受けた力を検出する力検出手段と、
前記力検出手段の検出結果により前記レバーの搬送速度を前記第2の搬送ベルトの搬送速度と異ならせて前記紙葉類取り出し手段の前記タイミングにあうように前記レバーの搬送速度を可変するモータと
から構成される。
【００１４】
また、本発明の紙葉類処理装置は、
複数の紙葉類が束状になっている紙葉類束から一葉ずつ紙葉類を取り出す紙葉類搬送取り出し装置と、
前記紙葉類搬送取り出し装置によって取り出された紙葉類に表示される情報を読み取る情報読み取り装置と、
前記情報読み取り装置によって読み取られた前記情報に基づいてこの紙葉類を区分けする紙葉類区分け装置と
からなる紙葉類処理装置において、
前記紙葉類搬送取り出し装置は、複数の紙葉類が載置可能な載置台と、
前記載置台上の前記紙葉類を立居状態で一定方向に搬送する複数の搬送ベルトと、
複数の紙葉類を載置可能な載置台と、
前記載置台上の前記紙葉類を立居状態で一定方向に搬送する複数の搬送ベルトと、
前記搬送ベルトで搬送された前記紙葉類を前記載置台から一葉ずつ所定のタイミングで取り出すことが可能な紙葉類取り出し手段とを有し、
前記搬送ベルトは前記紙葉類が搬送される方向に、前記紙葉類が搬送される搬送速度を可変可能な、第1の搬送ベルトおよび前記第1の搬送ベルトよりも前記紙葉類取り出し手段側に設けられた第2の搬送ベルトからなり、
前記第1の搬送ベルトを回転させる複数の回転ローラのうち前記紙葉類取り出し手段側に設けられた回転ローラの回転軸と前記第2の搬送ベルトを回転させる複数の回転ローラのうち前記第1の搬送ベルト側に設けられた回転ローラの回転軸とが略同軸に配置されて前記第1の搬送ベルトで搬送された紙葉類を前記第2の搬送ベルトに渡すように配列されており、前記第1及び第2の搬送ベルトは前記紙葉類取り手段の紙葉類取り出しタイミングにあわせた速度で紙葉類を搬送し、
前記第1の搬送ベルトから前記第2の搬送ベルトへ紙葉類を渡す部分で前記第1および第2の搬送ベルト上を搬送されている前記立居状態の紙葉類の間に挿入され第1の紙葉類を含む第1の紙葉類束とこの立居状態の第1の紙葉類に隣り合う前記搬送方向上流側の第2の紙葉類を含む第2の紙葉類束とに分ける前記搬送方向及び略鉛直方向に移動可能であり、前記第1の紙葉類束を前記第2の搬送ベルトの搬送速度と略同一の搬送速度で前記搬送方向に搬送するレバーと、
前記第1の紙葉類と接触しながら前記搬送方向へ移動し前記紙葉類取り出し手段近傍で前記第1及び第2の紙葉類間から取り出される前記レバーに設けられ前記レバーが前記第1の紙葉類から受けた力を検出する力検出手段と、
前記力検出手段の検出結果により前記レバーの搬送速度を前記第2の搬送ベルトの搬送速度と異ならせて前記紙葉類取り出し手段の前記タイミングにあうように前記レバーの搬送速度を可変するモータ
とから構成される。
【００１５】
このような構成によれば、紙葉類個々の厚さや大きさや材質の違い、あるいは搭載量や立居姿勢に起因する粗密状態の違いに関わらず、紙葉類取り出しベルトの取り出しタイミングにあわせた速度で紙葉類を搬送することができ、取り出し効率を向上できる。
【００１６】
【発明の実施の形態】
以下、本発明の実施の形態の構成を図面を参照しながら説明する。
【００１７】
図1乃至図8は本発明の第1の実施の形態を示すものである。
【００１８】
図1は本発明の紙葉類処理装置のブロック構成図である。
【００１９】
紙葉類処理装置1は、紙葉類搬送取り出し装置2、情報読み取り装置3と紙葉類区分け装置4とから構成される。
【００２０】
紙葉類搬送取り出し装置2の構成について、図2（a）の紙葉類搬送取り出し装置の上面図と図2（b）の側面図を用いて説明する。
【００２１】
紙葉類搬送取り出し装置2は、載置台10、搬送ベルト11a〜11c,12a〜12c、紙葉類取り出し手段13、側壁14、バックアップ板15、ガイド16、回転ローラ17a〜17n、さばき板18、分離機構19、レバー20a,20b、歪ゲージ21a,21b、ソレノイドコイル22a,22b、リニアガイド23a,23b、サーボモータ24a〜24c、回転ローラ25a,25bと光センサ26a〜26cとからなる。
【００２２】
また、紙葉類取り出し手段13は、真空チャンバ27、チャンバマスク28と紙葉類取り出しベルト29と回転ローラ30a〜30cとからなる。
【００２３】
載置台10上には複数の紙葉類を束状で載置可能であり、載置台10の一辺には載置台10表面に対して直交する方向に側壁14が設けられる。複数の搬送ベルト11a〜11c（第1のベルト）,12a〜12c（第2のベルト）は載置台10表面に埋設され、例えば搬送ベルト11aは回転ローラ17a,17bに張設され、搬送ベルト12aは回転ローラ17c,17dに張設されている。回転ローラ17bの回転軸と回転ローラ17cの回転軸とは略同軸上に配置されているため、搬送ベルト11a,12aの少なくとも一部分は隣り合って配列されている。この隣り合って配列されている部分で搬送ベルト11aが搬送ベルト12aに紙葉類を渡している。また搬送ベルト11a,12aは略平行に、かつ搬送ベルト11aの終点と搬送ベルト12aの始点とが回転軸上でほぼ重なり合うように設けられ、紙葉類取り出し手段13側に搬送ベルト12aが設けられる。搬送ベルト11a,12aは、それぞれの回転ローラ17a〜17dが回転することによって所定の方向（同図（b）時計回り）に移動（回転）可能であり、回転ローラ17a〜17dの回転速度を変えることにより移動速度を変更することができる。なお回転ローラ17aにはサーボモータ24aが回転ローラ17bにはサーボモータ24bが接続されている。
【００２４】
載置台10には搬送ベルト11a,12bと平行してガイド16が設けられ、ガイド16上を移動可能なバックアップ板15が設けられる。バックアップ板15は載置台10に立居状態で載置される紙葉類束の最後尾が倒れないよう支える目的で設けられている。バックアップ板15は搬送ベルト11a,12aの移動速度に同調して紙葉類束の最後尾を支えながら移動する。
【００２５】
紙葉類取り出しベルト29は回転ローラ30a〜30cに張設されて、回転ローラ30a〜30cが回転することによって移動（回転）可能である。紙葉類取り出しベルト29表面には紙葉類を吸着するための吸着孔が所定の間隔で穿設されている。回転ローラ30a〜30cには回転ローラ30a〜30cを回転させるための図示しないモータが接続されている。真空チャンバ27内はポンプなどにより吸引されており減圧下にあり、真空チャンバ27にはチャンバマスク28が設けられチャンバマスク28が紙葉類取り出しベルト29と接する。
【００２６】
紙葉類取り出しベルト29に吸着して取り出された一葉の紙葉類は、さばき板18、分離機構19で二枚取り防止がなされる。
【００２７】
載置台10には搬送ベルト12cと平行にレバー20a,20bが移動するための孔が穿設される。この孔は回転ローラ17bの回転軸近傍から紙葉類取り出しベルト29直前まで設けられている。
【００２８】
レバー20aはリニアガイドに設けられており、リニアガイドのうち回転ベルト23aは回転ローラ25a,25bに張設されている。回転ローラ25bにはサーボモータ24c（第2の駆動手段）が接続されている。またレバー20bはリニアガイドに設けられており、リニアガイドのうち回転ベルト23bは回転ローラ（図示しない）に張設されている。この回転ローラにはサーボモータ24cが接続されている。このようなレバー20a,20bが搬送ベルト11a,12bが移動する方向（搬送方向）と同一方向へ移動を行う場合はリニアガイド上を移動することによって行われる。また搬送ベルト11a,12aが移動する方向に対し略垂直方向にレバー20a,20bを移動させる場合にはレバー20a,20bの根元部に設けられたソレノイドコイル22a,22b（第1の駆動手段）によって行われる。
【００２９】
次に、力検出手段の種々の設けられ方について図3（a）,（b）,（c）のレバー近傍の側面図を参照して力検出手段の構成について説明する。なお図中矢印は紙葉類から受ける力を示し、一点鎖線は載置台10表面を表している。
【００３０】
図3（a）に示す通り、レバー20a（もしくは20b）の一部であってレバー20aの両面に歪ゲージ21a,21bが設けられる。両面に歪ゲージ21a,21bを設けて2アクティブゲージ方法にてレバー20a,20bにかかる力を検出する。
【００３１】
図3（b）に示す通り、レバー20a表面（レバー20aの先端で紙葉類が接触する部分）の一部に凹部を作りこの凹部を覆うような薄板40の両面に歪ゲージ21a,21ｂが設けられる。
【００３２】
図3（c）に示す通り、図3（b）の構成とほぼ同様であり、歪ゲージの変わりに感圧導電性ゴム41をレバー20aと薄板40との間に設けたものである。
【００３３】
歪ゲージ21a,21bもしくは感圧導電性ゴム41には導線が接続されており導線を介してアンプ42に検出された信号を送っている。アンプ42からの信号は制御装置43へ入力され、新たな速度信号が生成されこの信号がサーボモータ24b,24c（モータ）に入力される。
【００３４】
このような構成からなる第1の実施の形態の動作について説明する。
【００３５】
紙葉類処理装置は、紙葉類搬送取り出し装置2により一葉ずつ紙葉類を取り出し、取り出された紙葉類は情報読み取り装置3へ搬送されて紙葉類に表示される宛先などの情報をCCDカメラなどの光学的読み取り装置で読み取り、この読み取った情報に基づいて紙葉類を例えば宛先ごとに区分けする紙葉類区分け装置4に搬送し区分け処理を行っている。
【００３６】
以下に、紙葉類搬送取り出し装置2の動作について図4を参照して詳細に説明する。
【００３７】
なお、図4中矢印50は紙葉類が搬送される方向を、矢印51はレバー20aの移動方向を、矢印52はレバー20bの移動方向をそれぞれ示している。なお、以下では搬送ベルトは代表して搬送ベルト11a,12aに対して説明する。
【００３８】
レバー20aの初期位置は載置台10表面から突出しておらず載置台10の下側にあり、レバー20bは紙葉類取り出し手段13近傍で載置台10から突出している。
（1）図4（a）に示すように、載置台10に束状の紙葉類を側壁14に接触させ、最初に取り出される紙葉類はレバー20bに接触するように置かれる。紙葉類束の最後尾の紙葉類（最後に取り出される紙葉類）はバックアップ板15によって倒れないように支えられている。なお、紙葉類が搬送ベルト12上を搬送される時に立居状態であればよいため紙葉類の初期配置は載置台10に対して立居状態でなく積層された状態であっても良い。この場合には最終的には立居状態で取り出されるような装置が別途設けられている。
（2）図4（b）に示すように、真空チャンバ27内を真空引きすること、紙葉類取り出しベルト29を回転させること、搬送ベルト11a,12aを回転させる動作をほぼ同時に開始する。バックアップ板15は搬送ベルト11aの回転（回転速度）と同期して搬送方向に移動される。載置台10上の紙葉類は搬送ベルト11aもしくは搬送ベルト12aのいずれかによって紙葉類搬送取り出し装置13に向かって搬送される。
【００３９】
搬送ベルト12aが回転して搬送ベルト12a上の紙葉類を搬送し始めると同時に、レバー20bがソレノイドコイル22bによって載置台10表面から載置台10下側に移動する。
【００４０】
レバー20bが移動を始めると同時にレバー20aが載置台10へ突出するようソレノイドコイル22aによって移動される。レバー20aが第1及び第2の紙葉類間に挿入される動作を行う際には、搬送ベルト11a上の紙葉類を搬送する速度（搬送ベルト11aの回転速度）を搬送ベルト12aの搬送速度よりも小さくするか、もしくは搬送を停止する。搬送ベルト11aによる紙葉類の搬送速度を減速もしくは搬送を停止することによって、回転ローラ17b,17c近傍の搬送ベルト11a、12a上を搬送される紙葉類に隙間が生じる。この隙間を境にして搬送ベルト11a上の一葉の紙葉類を第1の紙葉類とし、搬送ベルト12a上の一葉の紙葉類を第2の紙葉類とする。第1の紙葉類と第2の紙葉類との間に隙間が生じることになる。この隙間にレバー20aが挿入され第1の紙葉類を最後尾とする第1の紙葉類束と第2の紙葉類を最前列とする第2の紙葉類束とに分ける。なお第2の紙葉類は第1の紙葉類よりも搬送方向上方流側にあるとする。
（3）図4（c）に示すように、レバー20aの紙葉類間への挿入動作が完了すると同時に、レバー20bが載置台10表面より下へ移動する動作が完了する。
【００４１】
レバー20aは搬送ベルト12a上の第1の紙葉類と接触し、搬送ベルト12aと略同一の速度で搬送ベルト12aと共に第1の紙葉類束を搬送する。ことときレバー20aはリニアガイド23aによって移動される。リニアガイド23aはサーボモータ24cによって回転ローラ25a,25bが回転されることで移動される。
【００４２】
レバー20aが第1の紙葉類と接触した後は搬送ベルト12aの回転速度（つまり紙葉類の搬送速度）とサーボモータ24cとは同期している。レバー20aが搬送方向に移動する動作に同期してレバー20bがリニアガイド23bによって搬送方向とは逆の方向、つまりレバー20aの初期位置の方向に移動される。
（4）図4（d）に示すように、レバー20aが紙葉類取り出しベルト29近傍に移動し光センサ26bもしくは26cによってレバー20aが検出された時にレバー20aの搬送方向への移動を停止する。レバー20aが光センサ26b,26cに検出されるとほぼ同時に、レバー20bも光センサ26aによって検出されてレバー20bの移動が停止される。
【００４３】
以降の工程は上記（2）〜（4）を載置台10上に載置される紙葉類が全て取り出されてなくなるまで繰り返される。
【００４４】
次に、搬送ベルト12aにより紙葉類取り出しベルト29近傍に搬送された紙葉類は真空吸着によって一葉だけ紙葉類取り出しベルト29に吸着されて、紙葉類取り出しベルト29が回転することによって水平方向へ移動される。その後さばき板18、分離機構19で二葉取りが防止され、情報読み取り装置2に搬送される。
【００４５】
上記（1）から（4）の工程の制御について図5乃至8を参照しながら説明する。
【００４６】
図5に示す通り、レバー20a（もしくはレバー20b）の一連の動作を4つのモードに分ける。
【００４７】
モード1はレバー20aの初期位置に待機（位置決めサーボ保持状態）および初期位置から載置台10に突出して紙葉類間に挿入される動作であり、モード2は紙葉類間に挿入されたレバー20aがレバー20aに接触する紙葉類から受ける力を検出し検出結果に基づいて紙葉類の紙葉類取り出しベルト29への押圧力を設定しながら紙葉類を取り出しベルト29へ搬送する、速度制御と力フィードバック補償とを併用した制御動作であり、モード3はレバー20aが紙葉類取り出しベルト29近傍の光電センサ26bで位置検出された後減速して載置台10上から載置台10下側に移動される動作であり、モード4はレバー20aの初期位置へ移動する動作をそれぞれ示している。なお、光電センサ26a、26cはモード2及びモード4での搬送方向に沿ったレバー20aの移動の限界を検出するものである。
【００４８】
また図6のフィードバック制御のブロック図に示す通り、モード1からモード4でのレバー20aの制御は、力制御、速度制御、および位置制御とを適宜使い分けて制御することによって動作が達成される。レバー20aの紙葉類の押圧力の制御が力フィードバック補償61であり、レバー20aの速度目標値に対する比例、積分動作による制御が速度フィードバック補償62であり、レバー20aの目標位置に対する比例動作による制御が位置フィードバック補償63である。
【００４９】
モード1、モード3、及びモード4におけるレバー20aの目標位置への位置決め移動動作では位置フィードバック補償63と速度フィードバック補償62が併せて実行されており、モード2における紙葉類の押圧力の制御と搬送移動動作では力フィードバック補償61と速度フィードバック補償62が併せて実行される。ここで、力フィードバック補償61の内容については、次の図7に示す押圧力と速度補償量との関係を示す図を用いて説明することができる。
【００５０】
すなわち、レバー20aに設けられた歪ゲージで検出された紙葉類への押圧力の値が設定した力目標値に対して大きければ、レバー20aが紙葉類を押しつけ過ぎているのでこれを緩和させるため紙葉類取り出し処理の速度に見合うようにレバー20a,20bの移動速度（紙葉類の搬送速度）を目標速度から減速（−ΔＶ´）することにより、逆に押圧力の値が小さければ紙葉類への押しつけが足りないため移動速度（紙葉類の搬送速度）を目標速度から増速（＋ΔＶ）することにより、それぞれ紙葉類への押圧力の補償が速度相当量として行われる。なお、図7中の線の傾きが力補償ゲインを示しており実線が線形的に補償した場合であり、一点鎖線が高次式に従い目標値からのずれが大きいほど速度補償を行う場合を示しており、先の図6における力フィードバック補償61のP補償（比例動作）の項に相当している。ここで、モード2における力目標値、速度目標値の値は紙葉類取り出しベルト29の取り出し処理のタイミングが一定な場合のレバー20a,20bの紙葉類への押し付け力,移動速度である。また、図7の線で目標押しつけ力の前後には一定量の不感帯を設けて力目標値と検出力とのわずかな差には力検出誤差の点から敏感に反応しすぎないようにすることも可能である。なお、モード2のレバー20aによる紙葉類の押圧力の制御と搬送移動動作では力フィードバック補償61と速度フィードバック補償62を併せて実行して押圧力の補償を速度補償相当量として行う場合を述べたが、紙葉類への目標押し付け力に対する力フィードバック補償61のみでレバー20aの動作を制御（いわゆる力フィードバック制御）することも可能である。
【００５１】
次に、レバー20a、20bに加わる（搬送方向の）力の検出について図8を参照して説明する。
【００５２】
図8（a）に示すように、レバー20a（もしくはレバー20b）には搬送方向側の紙葉類が倒れかかって接触することで、搬送方向と逆方向の力が歪ゲージなどによって検出される。また図8（b）に示すように、レバー20aにはバックアップ板側の紙葉類がバックアップ板によって押されることによって発生する搬送方向の力も歪ゲージなどによって検出される。
【００５３】
このようにレバー20aはレバー20aを挟んだ紙葉類から力を受け、場合によっては互いに反対方向の力を受けることもある。
【００５４】
このような状況を考慮すれば図3（b）、（c）は（a）に比べて、紙葉類が倒れかかることによって検出される力とバックアップ板によって押し付けられることによって検出される力とが相殺されて力が検出されないなどの影響を受けにくい構造である。なお図3（b）は最も精度良く力を検出でき、（c）は精度を要求しつつ製作が容易である場合である。
【００５５】
以上述べたような第1の実施の形態では、力検出装置によって搬送ベルト12a〜12c上の紙葉類の状態を検出することにより紙葉類取り出しベルト29の一葉ずつの紙葉類の取り出しタイミングにあわせた速度で紙葉類を搬送することで、空振りや二葉取りをなくし紙葉類の大きさや厚さ、載置台10上での載置状態の影響を受けることなく取り出し効率を向上させることができる。
【００５６】
つまり搬送ベルト11a〜11c,12a〜12cは取り出しタイミングにあわせた搬送速度で（回転）動作を行っているが、紙葉類の形状や載置（立居）状態のよっては空振りや二葉取りが起こる場合があり一定の取り出しタイミングで取り出すことができず取り出し効率が低下するため、このような場合には歪ゲージなどで検出された値が力目標値よりも小さければレバー20a,20bと紙葉類取り出しベルト29との間の紙葉類間に隙間があるとみなしてレバー20a,20bの移動速度（紙葉類の搬送速度）を搬送ベルト12a〜12cの搬送速度よりも大きくして目標値となるまで搬送速度を増加させ、逆に検出値が力目標値よりも大きければ紙葉類間が密になりすぎているとみなしてレバー20a,20bの移動速度を搬送ベルト12a〜12cの搬送速度よりも遅くして目標値となるまでを移動速度を遅くするのである。このように歪ゲージ21a,21bの検出結果に応じて搬送ベルト12a〜12cとレバー20a,20bの搬送速度を異ならせて、紙葉類取り出しベルト29の取り出しタイミングにあわせた速度で紙葉類を搬送している。その結果空振りや二葉取りを抑制し、取り出し効率を向上させている。
【００５７】
また、一定時間以上許容範囲外の（大きな）力を検出した場合には搬送ベルト11a〜11c,12a〜12c、レバー20a、20bの動作を停止することも可能である。これは紙葉類が紙葉類取り出しベルト29での取り出しミスや紙葉類取り出しベルト29以降の搬送経路での紙葉類詰まりの発生を未然に防ぐためである。
【００５８】
次に、本発明の第2の実施の形態の構成について図9を参照しながら説明する。
【００５９】
なお、以下の各実施の形態において同一構成要素は同一符号を付しその重複する説明は省略する。
【００６０】
第2の実施の形態の特徴は、レバー20a（もしくはレバー20b）を紙葉類間に挿入する時に紙葉類と紙葉類との間に隙間をあける手段として爪状部材31（挿入手段）を用いたことである。
【００６１】
図9は第2の実施の形態の爪状部材31近傍の上面図と側面図であり、例えば回転ローラ17bと回転ローラ17c近傍の載置台10、つまりレバー20aが載置台10に突出する位置の近傍の載置台10に穴が穿設される。この穴から一部が突出可能な爪状部材31が設けられる。なお、紙葉類と接触する爪状部材31の表面には紙葉類を滑りにくくするためにゴムなどが貼設されていたり、表面が凹凸形状であったりしていても良い。
【００６２】
紙葉類に隙間を空ける必要がない場合には、爪状部材31は載置台10から突出しておらず、載置台10内部に格納されている。しかしながら隙間を空ける必要がある場合、つまりレバー20aが紙葉類間に挿入される時には挿入される前に回転軸により爪状部材31が突出していない状態に比べて45度回転して載置台10から突出される。爪状部材31が突出することでこの爪状部材31に紙葉類が当接される。爪状部材31に紙葉類が引っかかっている間搬送ベルト12aから12cによって搬送される紙葉類とこの引っかかっている紙葉類との間に隙間が生じる。レバー20aが挿入可能な隙間ができれば爪状部材31を載置台10から突出しない初期位置に戻す。戻すと同時にレバー20aの紙葉類間への挿入を行う。なお爪状部材31が突出している場合であってもバックアップ板15および搬送ベルト11a〜11cは搬送方向に移動している。また隙間をあけるための爪状部材31の動作制御は、爪状部材31が突出して時間を設定することや隙間を光センサ（図示しない）などで測定することによって行われる。
【００６３】
以上述べた第2の実施の形態では、搬送ベルト11a〜11c,12a〜12cの回転速度を可変することなくレバー20a（もしくはレバー20b）を紙葉類間の隙間に挿入することができ、より確実に隙間をつくることでレバー20a,20bを紙葉類束に確実に挿入させて搬送することにより紙葉類の取り出し効率を向上させることができる。
【００６４】
次に、本発明の第3の実施の形態の構成について図10を参照しながら説明する。
【００６５】
第3の実施の形態の特徴は、レバー20aが側壁14に設けられたことである。
【００６６】
図10（a）は第3の実施の形態の正面図であり、（b）はレバー近傍の側面図であり、（c）はレバー近傍の上面図である。
【００６７】
図10（b）に示すように、レバー20aは支持軸32aに接続され、支持軸32aはリンク33aに接続され、リンク33aは回転軸34aに接続されている。支持軸32aと回転軸34aとにタイミングベルト35aが張設されている。レバー20aは支持軸32aを中心に水平方向に回転可能であり、回転軸32aは回転軸34aを中心に水平方向に回転可能である。
【００６８】
この回転軸34aと同軸上であり離間して回転軸34bが設けられる。回転軸34bの一端はリンク33bに固定され、リンク33bは支持軸32bに水平方向に回転可能に設けられる。回転軸34bと支持軸32bとにタイミングベルト35bが張設されている。支持軸32bにはレバー20bが接続されている。ここで、レバー20a、20bは回転軸34a、34bの軸中心に対して対称なる位置に配置される。またレバー20a、20bは同一水平面内に配置されるように設けられる。
【００６９】
レバー20a、20bが支持軸32a、32bに固定されるレバー20a、20bの根元部には歪ゲージなどの力検出器が設けられる。
【００７０】
図10（a）に示すように、レバー20a、20bが突出して紙葉類に接触し搬送ベルト12aと共に搬送しながら紙葉類取り出しベルト29近傍に移動するために開口部が長方形である窓36が側壁14に穿設されている。また側壁14には窓36からレバー20a、20bが突出を開始する位置の上下に、開口部が長方形である窓37,37が穿設されている。窓37からは搬送方向に倒れようとする紙葉類を支えるための複数の突起部38a〜38dが水平面内に突出して搬送方向及び水平方向に移動可能に設けられる。突起部38a〜38dが移動するための機構、駆動源は図示しないが設けられている。
【００７１】
搬送ベルト12aは窓36,37にまたがるように載置台10に穿設されて設けられる。
【００７２】
このような構成からなる第3の実施の形態の動作について説明する。
【００７３】
第3の実施の形態の動作も基本的には第1の実施の形態の動作とほぼ同一である。
（1）載置台10上に紙葉類を側壁14に接触させてそろえて載置する。レバー20a,20bの初期位置はどこであっても構わないが、ここでは窓36の両端（右側近傍と左側近傍）にあるとする。ただしレバー20a（もしくはレバー20b）が側壁14面から突出している時はレバー20b（もしくはレバー20a）は側壁14面から突出していないものとする。なお、紙葉類が載置台10上に載置された時、側壁14側から紙葉類間に突起部38a〜38d、レバー20a,20bが挿入されている。
（2）紙葉類取り出しベルト29、搬送ベルト12a、突起部38a〜38d、レバー20a（もしくは20b）がそれぞれ駆動される。紙葉類取り出しベルト29は回転ローラ30a〜30cの回転によって回転される。搬送ベルト12aは回転ローラ30g〜30iが回転されることによって回転される。搬送ベルト12aの回転速度（つまり紙葉類の搬送速度）に同期して突起部38a〜38dが同時に移動される。搬送ベルト12aの回転速度に同期してレバー20aが紙葉類に接触しながら紙葉類取り出しベルト29側に進む。つまり紙葉類は搬送ベルト12a、レバー20a、突起部38a〜38dで搬送されている。このときの搬送速度は略同一であり、紙葉類取り出しベルト29の取り出しタイミングにあうような速度で紙葉類を搬送している。
（3）搬送ベルト12aなどで搬送されてきた紙葉類は紙葉類取り出しベルト29で真空吸着されて載置台10から垂直に一葉ずつ取り出される。
【００７４】
ここで、レバー20a,20bの動作について説明する。
【００７５】
レバー20aは側壁14の窓36から突出したまま紙葉類と接触し紙葉類を支えながら紙葉類を搬送し搬送方向に移動される。レバー20aの突出、および搬送方向への移動は、回転軸34aが回転することによって移動され、また突出してからのレバー20aの紙葉類に対する姿勢（搬送方向に対し直交方向）は支持軸32aが回転することによって行われている。
【００７６】
レバー20aが側壁14から突出する直前の位置から回転軸34aが90度回転するまではレバー20aは搬送方向に移動しつつ搬送方向と直交する方向に紙葉類間に挿入されつづけ、90度を超えた地点で搬送方向に移動しつつ紙葉類間から取りだされる方向（つまり直交する方向と逆方向）に移動する。レバー20aが側壁14に突出せず内側に移動されると同時にレバー20bが搬送方向に移動されつつ紙葉類間に挿入を開始する。
【００７７】
また、突起部38a〜38dは、図10（a）の窓37,37の右端（搬送方向下流）近傍で側壁14内部に移動し突出しなくなり、側壁14の裏側を通って窓37,37の左端（搬送方向上流）近傍から再び突出し紙葉類を支えながら搬送する。
【００７８】
このようにレバー20a（もしくは20b）の力検出器で搬送される紙葉類から受ける搬送方向の力を検出することにより、紙葉類取り出しベルト29の取り出しタイミング（回転速度）にあわせた速度で紙葉類をレバー20a,20bで搬送させることにより効率よく取り出しを行うことができる。このとき検出された値によってはレバー20a,20bの搬送速度が搬送ベルト12aの搬送速度と異なり、レバー20a,20bの搬送速度を取り出しタイミングにあわせた搬送速度になるような速度の増減がなされる。
【００７９】
なお、本発明は上記各実施の形態には限定されずその主旨を逸脱しない範囲で種々変形して実施できることは言うまでもない。例えば回転ローラを回転可能であればサーボモータでなくステッピングモータあるいはインダクションモータであっても構わない。
【００８０】
また、載置台上の紙葉類が少なくなった場合には、バックアップ板を持ち上げ紙葉類束の最後尾の紙葉類と接触するように新たな紙葉類束を載置台上におき、追加された紙葉類束の最後尾にバックアップ板を移動させて最後尾の紙葉類と接触させて支持させて連続して処理を行うこともできる。この場合には搬送ベルト、紙葉類取り出しベルト、レバーは動作中である。
【００８１】
【発明の効果】
以上説明したように本発明によれば、搬送される紙葉類の大きさや搬送状態によらず、取り出しタイミングにあわせた速度で紙葉類の搬送を行うことにより、取り出し効率を向上させることができる。
【図面の簡単な説明】
【図１】本発明の紙葉類処理装置のブロック構成図。
【図２】本発明の紙葉類搬送取り出し装置の第1の実施の形態の正面図と側面図。
【図３】本発明の力検出手段の側面図。
【図４】本発明の紙葉類搬送取り出し装置の動作を説明する説明図。
【図５】本発明の力検出手段の動作を説明する説明図。
【図６】本発明の紙葉類搬送取り出し装置の取り出し動作の説明図。
【図７】本発明の紙葉類搬送取り出し装置の紙葉類搬送動作のフィードバック図。
【図８】本発明の紙葉類搬送取り出し装置の紙葉類搬送動作の説明図。
【図９】本発明の紙葉類搬送取り出し装置の第2の実施の形態の側面図。
【図１０】本発明の紙葉類搬送取り出し装置の第3の実施の形態の側面図。
【図１１】従来の紙葉類搬送取り出し装置の上面図。
【符号の説明】
1 紙葉類処理装置
2 紙葉類搬送取り出し装置
3 情報読み取り装置
4 紙葉類区分け装置
10 載置台
11,12 搬送ベルト
13 紙葉類取り出し手段
14 側壁
15 バックアップ板
16 ガイド
17a〜17n,25a,25ｂ,30a〜30c 回転ローラ
18 さばき板
19 分離機構
20a,20ｂレバー
21a,21ｂ歪ゲージ
22a,22ｂソレノイドコイル
23a、23ｂリニアガイド
24 サーボモータ
26a〜26c 光センサ
27 真空チャンバ
28 チャンバマスク
29 紙葉類取り出しベルト
31 爪状部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a paper sheet transporting and taking out apparatus and a paper sheet processing apparatus, and more particularly to a paper sheet transporting and taking out apparatus and a paper sheet processing apparatus that take out mails such as postcards and sealed letters one by one from a bundle of mails.
[0002]
[Prior art]
2. Description of the Related Art A paper sheet processing apparatus that takes out paper sheets such as postcards and sealed letters one by one and sorts them for each destination includes a paper sheet transporting and taking out apparatus, an information reading apparatus, and a paper sheet sorting apparatus.
[0003]
The paper sheet conveying and taking out apparatus takes out the paper sheets one by one from the paper sheet bundle in which the paper sheets are bundled, and the information reading device is displayed on the paper sheets taken out by the paper sheet conveying and taking out apparatus. Information such as a destination (postal code) is read, and the paper sheet sorting apparatus performs an operation of sorting paper sheets based on the information read by the information reading apparatus.
[0004]
Here, with reference to a top view of the conventional paper sheet conveying and taking out apparatus of FIG. 11, the configuration and operation of the paper sheet conveying and taking out apparatus will be described in detail.
[0005]
The paper sheet transport and take-out device 100 includes a placing table 101, a transport belt 103, a paper sheet suction device 104, a backup plate 105, a side wall 106, a separating plate 107, and a separation mechanism 108, and also a paper sheet suction device 104. Consists of a paper sheet take-out belt 109, a chamber mask 110, a vacuum chamber 111, a vacuum suction air tube (not shown), a pin 112, a photoelectric sensor 113, and rotating rollers 114m to 114o.
[0006]
The sheet bundle placed on the table 101 in contact with the side wall 106 is conveyed by the rotation of the conveyance belt 103 while the last part of the sheet bundle is supported by the backup plate 105, and the sheet adsorption device. Led to 104.
[0007]
The paper sheets guided to the paper sheet adsorption device 104 come into contact with the paper sheet take-out belt 109 rotated by the rotation of the rotating rollers 114m to 114o, and the surface of the paper sheet take-out belt 109 is spaced at a constant interval. It is sucked into the perforated suction holes and taken out one by one. The adsorption force for adsorbing paper sheets can be obtained by sucking the inside of the vacuum chamber 111 through a vacuum adsorption air tube by a pump or the like.
[0008]
The paper sheets adsorbed by the paper sheet take-out belt 109 are sent to the information reading device through a separating plate 107 that prevents the paper sheets from being removed and a separation mechanism 108 including a friction member.
[0009]
By the way, when taking out the paper sheet from which the paper sheet is taken out by the paper sheet take-out belt 109, the conveyed paper sheet presses the pin 112 provided in the vicinity of the paper sheet take-out belt 109 and presses the pin 112. Is detected by the photoelectric sensor 113, and the conveying speed of the conveying belt 103 in the vicinity of the sheet adsorbing device 104 is set according to the pressing amount, and the sheet is conveyed by the conveying belt 103 at the set speed. It was transported and removed. For example, if the pressing amount is small, the conveying speed of the conveying belt 103 is increased. Conversely, if the pressing amount is large, the conveying speed of the conveying belt 103 is decreased and stopped.
[0010]
However, in the paper sheet processing apparatus having such a configuration, the pressing amount of the pin 112 is measured to detect the position of one paper sheet facing the paper sheet take-out belt 109, and the conveyance belt 103 is detected from the detection result. Therefore, depending on the size and thickness of the paper sheets, and the presence or size of gaps between the paper sheets, the paper sheets may rotate at a constant speed. It is difficult to convey the paper sheet in accordance with the timing of taking out the paper sheet take-out belt 109 that adsorbs and takes out the paper. For example, when there is a gap between paper sheets, the paper sheets do not reach the paper sheet take-out belt 109, and the paper sheet take-out belt 109 rotates without being adsorbed. There is a possibility that problems such as take-out may occur when the paper is not swung and there is no gap between the sheets.
[0011]
Therefore, the take-out timing by the paper take-out belt 109 is constant. However, when the paper sheet is conveyed and taken out at a conveyance speed in accordance with this timing, the size and thickness of the paper sheets, or the state between the paper sheets It was difficult if they were different.
[0012]
[Problems to be solved by the invention]
Therefore, the present invention has been made in view of the above-described conventional problems, and even when the size and thickness of the paper sheets and the state between the paper sheets are different, the present invention is adapted to the timing of taking out the paper sheets. It is an object of the present invention to provide a paper sheet conveying / extracting apparatus and a paper sheet processing apparatus that improve the extraction efficiency by conveying paper sheets at a conveying speed.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the paper sheet conveying and taking out apparatus of the present invention is:
A mounting table on which a plurality of paper sheets can be mounted;
A plurality of conveyor belts that convey the paper sheets on the table in a standing direction in a standing state;
A paper sheet take-out means capable of taking out the paper sheets conveyed by the conveyance belt one by one from the mounting table at a predetermined timing;
In the paper sheet conveying and unloading apparatus comprising:
The transport belt is capable of changing a transport speed at which the paper sheet is transported in a direction in which the paper sheet is transported, and the paper sheet take-out means than the first transport belt and the first transport belt. Consisting of a second conveyor belt provided on the side,
Of the plurality of rotating rollers for rotating the first conveying belt, the rotating shaft of the rotating roller provided on the paper sheet take-out means side and the first of the plurality of rotating rollers for rotating the second conveying belt. The rotating shaft of the rotating roller provided on the side of the conveyor belt is arranged substantially coaxially and is arranged so as to pass the sheets conveyed by the first conveyor belt to the second conveyor belt, The first and second conveyor belts convey the paper sheets at a speed in accordance with the paper sheet take-out timing of the paper sheet removing means,
Inserted between the standing paper sheets being transported on the first and second transport belts at a portion where the paper sheets are passed from the first transport belt to the second transport belt. A first sheet bundle including the second sheet bundle and a second sheet bundle including the second sheet upstream of the transport direction adjacent to the first sheet in the standing state. A lever that is movable in the transport direction and the substantially vertical direction, and that transports the first sheet bundle in the transport direction at a transport speed substantially the same as the transport speed of the second transport belt;
The lever is provided in the lever that moves in the transport direction while in contact with the first paper sheet and is taken out between the first and second paper sheets in the vicinity of the paper sheet take-out means. Force detecting means for detecting the force received from the paper sheets of
A motor that varies the conveyance speed of the lever so that the conveyance speed of the lever differs from the conveyance speed of the second conveyance belt according to the detection result of the force detection means so as to meet the timing of the paper sheet take-out means.
Consists of
[0014]
In addition, the paper sheet processing apparatus of the present invention,
A paper sheet transport and take-out device for taking out paper sheets one by one from a bundle of paper sheets in which a plurality of paper sheets are bundled;
An information reading device for reading information displayed on the paper sheet taken out by the paper sheet transporting and taking out device;
A paper sheet sorting device for sorting the paper sheets based on the information read by the information reading device;
In the paper sheet processing apparatus comprising:
The paper sheet transport and take-out device includes a mounting table on which a plurality of paper sheets can be mounted;
A plurality of conveyor belts that convey the paper sheets on the table in a standing direction in a standing state;
A mounting table on which a plurality of paper sheets can be mounted;
A plurality of conveyor belts that convey the paper sheets on the table in a standing direction in a standing state;
A paper sheet take-out means capable of taking out the paper sheets conveyed by the conveyor belt one by one from the mounting table at a predetermined timing;
The transport belt is capable of changing a transport speed at which the paper sheet is transported in a direction in which the paper sheet is transported, and the paper sheet take-out means than the first transport belt and the first transport belt. Consisting of a second conveyor belt provided on the side,
Of the plurality of rotating rollers for rotating the first conveying belt, the rotating shaft of the rotating roller provided on the paper sheet take-out means side and the first of the plurality of rotating rollers for rotating the second conveying belt. The rotating shaft of the rotating roller provided on the side of the conveyor belt is arranged substantially coaxially and is arranged so as to pass the sheets conveyed by the first conveyor belt to the second conveyor belt, The first and second conveyor belts convey the paper sheets at a speed in accordance with the paper sheet take-out timing of the paper sheet removing means,
Inserted between the standing paper sheets being transported on the first and second transport belts at a portion where the paper sheets are passed from the first transport belt to the second transport belt. A first sheet bundle including the second sheet bundle and a second sheet bundle including the second sheet upstream of the transport direction adjacent to the first sheet in the standing state. A lever that is movable in the transport direction and the substantially vertical direction, and that transports the first sheet bundle in the transport direction at a transport speed substantially the same as the transport speed of the second transport belt;
The lever is provided in the lever that moves in the transport direction while in contact with the first paper sheet and is taken out between the first and second paper sheets in the vicinity of the paper sheet take-out means. Force detecting means for detecting the force received from the paper sheets of
A motor that varies the conveyance speed of the lever so that the conveyance speed of the lever differs from the conveyance speed of the second conveyance belt according to the detection result of the force detection means and matches the timing of the paper sheet take-out means.
It consists of.
[0015]
According to such a configuration, regardless of differences in the thickness, size, and material of individual paper sheets, or differences in density due to the loading amount and standing posture, the speed in accordance with the timing at which the paper sheet take-out belt is taken out. The paper sheets can be transported and the take-out efficiency can be improved.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
The configuration of the embodiment of the present invention will be described below with reference to the drawings.
[0017]
1 to 8 show a first embodiment of the present invention.
[0018]
FIG. 1 is a block diagram of a paper sheet processing apparatus according to the present invention.
[0019]
The paper sheet processing apparatus 1 is composed of a paper sheet transporting and taking out apparatus 2, an information reading apparatus 3, and a paper sheet sorting apparatus 4.
[0020]
The configuration of the paper sheet transporting and taking out apparatus 2 will be described with reference to the top view of the paper sheet transporting and taking out apparatus in FIG. 2 (a) and the side view of FIG. 2 (b).
[0021]
The paper sheet conveying and unloading device 2 includes a placing table 10, conveying belts 11a to 11c, 12a to 12c, a paper sheet removing means 13, a side wall 14, a backup plate 15, a guide 16, rotating rollers 17a to 17n, a separating plate 18, The separation mechanism 19 includes levers 20a and 20b, strain gauges 21a and 21b, solenoid coils 22a and 22b, linear guides 23a and 23b, servo motors 24a to 24c, rotating rollers 25a and 25b, and optical sensors 26a to 26c.
[0022]
The paper sheet take-out means 13 includes a vacuum chamber 27, a chamber mask 28, a paper sheet take-out belt 29, and rotating rollers 30a to 30c.
[0023]
A plurality of paper sheets can be placed in a bundle on the mounting table 10, and a side wall 14 is provided on one side of the mounting table 10 in a direction perpendicular to the surface of the mounting table 10. The plurality of conveyor belts 11a to 11c (first belt) and 12a to 12c (second belt) are embedded in the surface of the mounting table 10, for example, the conveyor belt 11a is stretched around the rotation rollers 17a and 17b, and the conveyor belt 12a Is stretched around the rotating rollers 17c and 17d. Since the rotating shaft of the rotating roller 17b and the rotating shaft of the rotating roller 17c are arranged substantially coaxially, at least a part of the conveyor belts 11a and 12a are arranged adjacent to each other. The conveyor belt 11a passes paper sheets to the conveyor belt 12a in the adjacently arranged portions. Further, the conveyor belts 11a and 12a are provided substantially in parallel so that the end point of the conveyor belt 11a and the start point of the conveyor belt 12a substantially overlap on the rotation axis, and the conveyor belt 12a is provided on the paper sheet take-out means 13 side. . The conveyor belts 11a and 12a can be moved (rotated) in a predetermined direction (clockwise in FIG. 4B) by rotating the respective rotating rollers 17a to 17d, and change the rotation speed of the rotating rollers 17a to 17d. Thus, the moving speed can be changed. A servo motor 24a is connected to the rotating roller 17a, and a servo motor 24b is connected to the rotating roller 17b.
[0024]
The mounting table 10 is provided with a guide 16 in parallel with the conveyor belts 11a and 12b, and a backup plate 15 that is movable on the guide 16 is provided. The backup plate 15 is provided for the purpose of supporting the trailing end of the bundle of paper sheets placed on the mounting table 10 in a standing state so as not to fall down. The backup plate 15 moves while supporting the tail of the sheet bundle in synchronization with the moving speed of the conveyor belts 11a and 12a.
[0025]
The sheet take-out belt 29 is stretched around the rotation rollers 30a to 30c, and can be moved (rotated) by rotating the rotation rollers 30a to 30c. Adsorption holes for adsorbing paper sheets are formed on the surface of the paper sheet take-out belt 29 at predetermined intervals. Motors (not shown) for rotating the rotation rollers 30a to 30c are connected to the rotation rollers 30a to 30c. The vacuum chamber 27 is sucked by a pump or the like and is under reduced pressure. The vacuum chamber 27 is provided with a chamber mask 28, and the chamber mask 28 is in contact with the paper sheet take-out belt 29.
[0026]
The single sheet taken out by being absorbed by the paper take-out belt 29 is prevented from being taken out by the separating plate 18 and the separating mechanism 19.
[0027]
The mounting table 10 is provided with holes for moving the levers 20a and 20b in parallel with the transport belt 12c. This hole is provided from the vicinity of the rotating shaft of the rotating roller 17b to immediately before the sheet take-out belt 29.
[0028]
The lever 20a is provided in the linear guide, and the rotating belt 23a of the linear guide is stretched around the rotating rollers 25a and 25b. A servo motor 24c (second driving means) is connected to the rotating roller 25b. The lever 20b is provided in a linear guide, and the rotating belt 23b of the linear guide is stretched around a rotating roller (not shown). A servo motor 24c is connected to the rotating roller. When the levers 20a and 20b move in the same direction as the direction in which the conveying belts 11a and 12b move (conveying direction), the movement is performed on the linear guide. When the levers 20a and 20b are moved in a direction substantially perpendicular to the direction in which the transport belts 11a and 12a move, solenoid coils 22a and 22b (first driving means) provided at the bases of the levers 20a and 20b are used. Done.
[0029]
Next, various configurations of the force detection means will be described with reference to side views in the vicinity of the levers of FIGS. 3 (a), (b), and (c). In the figure, the arrow indicates the force received from the paper, and the alternate long and short dash line indicates the surface of the mounting table 10.
[0030]
As shown in FIG. 3 (a), strain gauges 21a and 21b are provided on both sides of the lever 20a, which is a part of the lever 20a (or 20b). Strain gauges 21a and 21b are provided on both sides, and the force applied to the levers 20a and 20b is detected by the two-active gauge method.
[0031]
As shown in FIG. 3 (b), the strain gauges 21a and 21b are formed on both surfaces of the thin plate 40 which forms a recess in a part of the lever 20a surface (the portion where the paper sheet contacts at the tip of the lever 20a) and covers the recess. Provided.
[0032]
As shown in FIG. 3 (c), the configuration is almost the same as in FIG. 3 (b), and a pressure-sensitive conductive rubber 41 is provided between the lever 20a and the thin plate 40 in place of the strain gauge.
[0033]
A conductive wire is connected to the strain gauges 21a, 21b or the pressure-sensitive conductive rubber 41, and a detected signal is sent to the amplifier 42 via the conductive wire. A signal from the amplifier 42 is input to the control device 43, a new speed signal is generated, and this signal is input to the servo motors 24b and 24c (motors).
[0034]
The operation of the first embodiment having such a configuration will be described.
[0035]
The paper sheet processing apparatus takes out the paper sheets one by one by the paper sheet conveying and taking out apparatus 2, and the taken out paper sheets are conveyed to the information reading apparatus 3 to display information such as a destination displayed on the paper sheets. The image is read by an optical reading device such as a CCD camera, and the paper sheet is conveyed to, for example, a paper sheet sorting device 4 that sorts each destination based on the read information, and a sorting process is performed.
[0036]
Hereinafter, the operation of the paper sheet transporting and taking out apparatus 2 will be described in detail with reference to FIG.
[0037]
In FIG. 4, the arrow 50 indicates the direction in which the paper sheet is conveyed, the arrow 51 indicates the movement direction of the lever 20a, and the arrow 52 indicates the movement direction of the lever 20b. In the following, the conveyor belt will be described as a representative of the conveyor belts 11a and 12a.
[0038]
The initial position of the lever 20a does not protrude from the surface of the mounting table 10 but is below the mounting table 10, and the lever 20b protrudes from the mounting table 10 in the vicinity of the paper sheet take-out means 13.
(1) As shown in FIG. 4A, a bundle of paper sheets is brought into contact with the side wall 14 on the mounting table 10, and the first paper sheet to be taken out is placed in contact with the lever 20b. The last sheet (the last sheet to be taken out) of the sheet bundle is supported by the backup plate 15 so as not to fall down. Since the paper sheets need only be in a standing state when being transported on the transport belt 12, the initial arrangement of the paper sheets may be in a stacked state with respect to the mounting table 10 instead of standing. In this case, a device that can be finally taken out in a standing state is separately provided.
(2) As shown in FIG. 4B, the operation of evacuating the vacuum chamber 27, rotating the paper sheet take-out belt 29, and rotating the transport belts 11a and 12a is started almost simultaneously. The backup plate 15 is moved in the transport direction in synchronization with the rotation (rotational speed) of the transport belt 11a. The paper sheets on the mounting table 10 are conveyed toward the paper sheet conveyance / extraction device 13 by either the conveyance belt 11a or the conveyance belt 12a.
[0039]
At the same time as the conveyance belt 12a rotates and begins to convey the paper sheets on the conveyance belt 12a, the lever 20b is moved from the surface of the mounting table 10 to the lower side of the mounting table 10 by the solenoid coil 22b.
[0040]
Simultaneously with the start of movement of the lever 20b, the lever 20a is moved by the solenoid coil 22a so as to protrude to the mounting table 10. When the lever 20a is inserted between the first and second paper sheets, the speed at which the paper sheets on the transport belt 11a are transported (the rotational speed of the transport belt 11a) is transported by the transport belt 12a. Decrease the speed or stop the conveyance. By reducing the conveyance speed of the paper sheets by the conveyance belt 11a or stopping the conveyance, a gap is generated in the paper sheets conveyed on the conveyance belts 11a and 12a in the vicinity of the rotation rollers 17b and 17c. With this gap as a boundary, one sheet of paper on the conveyor belt 11a is defined as a first sheet, and one sheet of paper on the conveyor belt 12a is defined as a second sheet. A gap is generated between the first paper sheet and the second paper sheet. The lever 20a is inserted into the gap to divide the sheet into a first sheet bundle with the first sheet as the tail and a second sheet bundle with the second sheet in the front row. It is assumed that the second paper sheet is on the upstream side in the transport direction with respect to the first paper sheet.
(3) As shown in FIG. 4 (c), the operation of moving the lever 20b below the surface of the mounting table 10 is completed simultaneously with the completion of the insertion operation of the lever 20a between the sheets.
[0041]
The lever 20a contacts the first paper sheet on the transport belt 12a, and transports the first paper sheet bundle together with the transport belt 12a at substantially the same speed as the transport belt 12a. At this time, the lever 20a is moved by the linear guide 23a. The linear guide 23a is moved by rotating the rotation rollers 25a and 25b by the servo motor 24c.
[0042]
After the lever 20a comes into contact with the first paper sheet, the rotation speed of the transport belt 12a (that is, the transport speed of the paper sheet) and the servo motor 24c are synchronized. In synchronism with the movement of the lever 20a in the transport direction, the lever 20b is moved by the linear guide 23b in the direction opposite to the transport direction, that is, in the direction of the initial position of the lever 20a.
(4) As shown in FIG. 4 (d), when the lever 20a moves to the vicinity of the paper take-out belt 29 and the lever 20a is detected by the optical sensor 26b or 26c, the movement of the lever 20a in the transport direction is stopped. . Almost simultaneously with the detection of the lever 20a by the optical sensors 26b and 26c, the lever 20b is also detected by the optical sensor 26a and the movement of the lever 20b is stopped.
[0043]
The subsequent steps are repeated until the above (2) to (4) are all taken out of the paper sheets placed on the placing table 10.
[0044]
Next, the paper sheet transported to the vicinity of the paper sheet take-out belt 29 by the transport belt 12a is adsorbed to the paper sheet take-out belt 29 by vacuum suction, and the paper sheet take-out belt 29 rotates to rotate horizontally. Moved in the direction. Thereafter, the separation plate 18 and the separation mechanism 19 prevent the two-leaf removal and the sheet is conveyed to the information reading device 2.
[0045]
Control of the steps (1) to (4) will be described with reference to FIGS.
[0046]
As shown in FIG. 5, a series of operations of the lever 20a (or lever 20b) is divided into four modes.
[0047]
Mode 1 is standby (positioning servo holding state) at the initial position of the lever 20a and operation that protrudes from the initial position to the mounting table 10 and is inserted between the sheets. Mode 2 is a lever inserted between the sheets. 20a detects the force received from the paper sheet contacting the lever 20a, and conveys the paper sheet to the belt 29 while setting the pressing force of the paper sheet to the paper sheet take-out belt 29 based on the detection result. This mode is a control operation that uses both speed control and force feedback compensation. In mode 3, the lever 20a is decelerated after the position of the lever 20a is detected by the photoelectric sensor 26b in the vicinity of the paper sheet take-out belt 29, and then decelerates. Mode 4 shows an operation of moving to the initial position of the lever 20a. The photoelectric sensors 26a and 26c detect the limit of movement of the lever 20a along the transport direction in mode 2 and mode 4.
[0048]
In addition, as shown in the feedback control block diagram of FIG. 6, the control of the lever 20a in the mode 1 to the mode 4 is achieved by appropriately controlling force control, speed control, and position control. The control of the pressing force of the paper sheet of the lever 20a is the force feedback compensation 61, and the control by the integral operation is proportional to the speed target value of the lever 20a, and the speed feedback compensation 62 is the control by the proportional operation to the target position of the lever 20a. Is the position feedback compensation 63.
[0049]
In the positioning movement operation of the lever 20a to the target position in the mode 1, the mode 3 and the mode 4, the position feedback compensation 63 and the speed feedback compensation 62 are executed together. In the transport movement operation, force feedback compensation 61 and speed feedback compensation 62 are executed together. Here, the content of the force feedback compensation 61 can be described with reference to the diagram showing the relationship between the pressing force and the speed compensation amount shown in FIG.
[0050]
In other words, if the value of the pressing force on the paper sheet detected by the strain gauge provided on the lever 20a is larger than the set force target value, the lever 20a presses the paper sheet too much, which is alleviated. In order to reduce the pressing force value, the lever 20a, 20b moving speed (sheet transport speed) is decelerated (-ΔV ') from the target speed to match the speed of the sheet take-out process. Since there is not enough pressure on the paper, the movement speed (paper transport speed) is increased from the target speed (+ ΔV) to compensate for the pressure on the paper as a corresponding amount of speed. Is called. Note that the slope of the line in FIG. 7 indicates the force compensation gain, and the solid line is linearly compensated, and the one-dot chain line indicates speed compensation as the deviation from the target value increases according to a higher order equation. This corresponds to the term of P compensation (proportional operation) of the force feedback compensation 61 in FIG. Here, the force target value and the speed target value in mode 2 are the pressing force and moving speed of the levers 20a and 20b on the paper sheet when the extraction processing timing of the paper sheet extraction belt 29 is constant. In addition, a certain amount of dead zone should be provided before and after the target pressing force in the line in FIG. 7 so that the slight difference between the force target value and the detection force does not react too sensitively from the point of force detection error. Is also possible. In the control of the pressing force of the paper sheet by the lever 20a in mode 2 and the transport movement operation, the case where the force feedback compensation 61 and the speed feedback compensation 62 are executed together to compensate the pressing force as the speed compensation equivalent amount is described. However, it is also possible to control the operation of the lever 20a (so-called force feedback control) only by the force feedback compensation 61 for the target pressing force against the paper sheet.
[0051]
Next, detection of force (in the transport direction) applied to the levers 20a and 20b will be described with reference to FIG.
[0052]
As shown in FIG. 8 (a), the lever 20a (or lever 20b) is brought into contact with the paper sheet on the conveyance direction side so that the force in the direction opposite to the conveyance direction is detected by a strain gauge or the like. . Further, as shown in FIG. 8B, the lever 20a also detects a force in the transport direction generated by the paper sheets on the backup plate side being pushed by the backup plate by a strain gauge or the like.
[0053]
In this way, the lever 20a receives a force from the paper sheets sandwiching the lever 20a, and in some cases, receives a force in the opposite direction.
[0054]
Considering such a situation, in FIGS. 3 (b) and 3 (c), compared to (a), the force detected when the paper sheet falls and the force detected by being pressed by the backup plate This is a structure that is not easily affected by the fact that the force is canceled and the force is not detected. FIG. 3 (b) shows the case where the force can be detected with the highest accuracy, and FIG. 3 (c) shows the case where the manufacture is easy while requiring accuracy.
[0055]
In the first embodiment as described above, the take-out timing of each paper sheet of the paper take-out belt 29 by detecting the state of the paper sheets on the transport belts 12a to 12c by the force detection device. By transporting paper sheets at a speed that matches the speed of the paper, it is possible to eliminate empty swings and double-leaf removal, and to improve pick-up efficiency without being affected by the size and thickness of the paper sheets and the loading state on the loading table 10. Can do.
[0056]
In other words, the conveyor belts 11a to 11c and 12a to 12c operate (rotate) at a conveyance speed in accordance with the take-out timing. However, depending on the shape of the paper sheet and the placement (standing) state, the swing belt or two-leaf removal occurs. In this case, if the value detected by the strain gauge is smaller than the force target value, the levers 20a and 20b and the paper sheets Assuming that there is a gap between the paper sheets with the take-out belt 29, the moving speed of the levers 20a, 20b (the paper sheet conveying speed) is made larger than the conveying speed of the conveying belts 12a to 12c, and the target value is obtained. If the detected value is larger than the force target value, it is considered that the paper sheets are too dense, and the moving speed of the levers 20a and 20b is set to the conveying speed of the conveying belts 12a to 12c. Move slower to reach target value It is to slow down the degree. In this way, the conveying speeds of the conveying belts 12a to 12c and the levers 20a and 20b are varied according to the detection results of the strain gauges 21a and 21b, and the paper sheets are removed at a speed according to the taking-out timing of the paper sheet taking-out belt 29. Conveying. As a result, swinging and removing two leaves are suppressed, and the extraction efficiency is improved.
[0057]
In addition, when a (large) force outside the allowable range is detected for a certain time or longer, the operations of the conveyor belts 11a to 11c and 12a to 12c and the levers 20a and 20b can be stopped. This is to prevent paper sheets from being taken out by the paper sheet take-out belt 29 and from being jammed in the transport path after the paper sheet take-out belt 29.
[0058]
Next, the configuration of the second exemplary embodiment of the present invention will be described with reference to FIG.
[0059]
In the following embodiments, the same components are denoted by the same reference numerals, and redundant description thereof is omitted.
[0060]
A feature of the second embodiment is that a claw-like member 31 (insertion means) serves as a means for opening a gap between the paper sheets when the lever 20a (or lever 20b) is inserted between the paper sheets. Is used.
[0061]
FIG. 9 is a top view and a side view of the vicinity of the claw-like member 31 of the second embodiment, for example, the mounting table 10 in the vicinity of the rotating roller 17b and the rotating roller 17c, that is, the position where the lever 20a protrudes from the mounting table 10. A hole is drilled in the mounting table 10 in the vicinity. A claw-like member 31 that can partially protrude from the hole is provided. Note that rubber or the like may be attached to the surface of the claw-like member 31 that contacts the paper sheet to make the paper sheet less slippery, or the surface may be uneven.
[0062]
When it is not necessary to leave a gap in the paper sheet, the claw-like member 31 does not protrude from the mounting table 10 and is stored inside the mounting table 10. However, when it is necessary to leave a gap, that is, when the lever 20a is inserted between the sheets, the mounting table 10 is rotated by 45 degrees before the insertion when the claw-like member 31 is not projected by the rotation shaft. Protruding from. When the claw-like member 31 protrudes, the paper sheet comes into contact with the claw-like member 31. While the paper sheet is caught by the claw-like member 31, a gap is formed between the paper sheet conveyed by the conveyance belts 12a to 12c and the paper sheet being caught. If there is a gap in which the lever 20a can be inserted, the claw-like member 31 is returned to the initial position where it does not protrude from the mounting table 10. Simultaneously with the return, the lever 20a is inserted between the sheets. Even when the claw-like member 31 protrudes, the backup plate 15 and the conveyor belts 11a to 11c move in the conveyance direction. Also, the operation control of the claw-shaped member 31 for making a gap is performed by setting the time when the claw-shaped member 31 protrudes and measuring the gap with an optical sensor (not shown).
[0063]
In the second embodiment described above, the lever 20a (or lever 20b) can be inserted into the gap between the sheets without changing the rotational speed of the conveyor belts 11a to 11c and 12a to 12c. It is possible to improve the take-out efficiency of the paper sheets by reliably inserting the levers 20a and 20b into the paper-sheet bundle and transporting them.
[0064]
Next, the configuration of the third exemplary embodiment of the present invention will be described with reference to FIG.
[0065]
The feature of the third embodiment is that the lever 20a is provided on the side wall.
[0066]
FIG. 10 (a) is a front view of the third embodiment, (b) is a side view in the vicinity of the lever, and (c) is a top view in the vicinity of the lever.
[0067]
As shown in FIG. 10 (b), the lever 20a is connected to the support shaft 32a, the support shaft 32a is connected to the link 33a, and the link 33a is connected to the rotation shaft 34a. A timing belt 35a is stretched between the support shaft 32a and the rotation shaft 34a. The lever 20a can rotate in the horizontal direction around the support shaft 32a, and the rotation shaft 32a can rotate in the horizontal direction around the rotation shaft 34a.
[0068]
A rotation shaft 34b is provided coaxially with and spaced from the rotation shaft 34a. One end of the rotating shaft 34b is fixed to the link 33b, and the link 33b is provided on the support shaft 32b so as to be rotatable in the horizontal direction. A timing belt 35b is stretched between the rotating shaft 34b and the support shaft 32b. A lever 20b is connected to the support shaft 32b. Here, the levers 20a and 20b are disposed at positions symmetrical with respect to the axis centers of the rotation shafts 34a and 34b. The levers 20a and 20b are provided so as to be arranged in the same horizontal plane.
[0069]
A force detector such as a strain gauge is provided at the base of the levers 20a and 20b where the levers 20a and 20b are fixed to the support shafts 32a and 32b.
[0070]
As shown in FIG. 10 (a), the levers 20a and 20b protrude to come into contact with the paper sheet and move to the vicinity of the paper sheet take-out belt 29 while being transported together with the transport belt 12a. Is drilled in the side wall 14. In addition, windows 37 and 37 whose openings are rectangular are formed in the side wall 14 above and below the position where the levers 20a and 20b start to protrude from the window 36. From the window 37, a plurality of protrusions 38a to 38d for supporting paper sheets that are about to fall down in the transport direction are provided so as to protrude into the horizontal plane and move in the transport direction and the horizontal direction. Although not shown, a mechanism and a drive source for moving the protrusions 38a to 38d are provided.
[0071]
The conveyor belt 12a is provided by being drilled in the mounting table 10 so as to straddle the windows 36 and 37.
[0072]
The operation of the third embodiment having such a configuration will be described.
[0073]
The operation of the third embodiment is basically the same as that of the first embodiment.
(1) Place the paper sheets on the mounting table 10 in contact with the side wall 14 and place them. The initial positions of the levers 20a and 20b may be anywhere, but here they are assumed to be at both ends of the window 36 (near the right side and near the left side). However, when the lever 20a (or lever 20b) protrudes from the side wall 14 surface, the lever 20b (or lever 20a) does not protrude from the side wall 14 surface. When the paper sheet is placed on the placing table 10, the protrusions 38a to 38d and the levers 20a and 20b are inserted between the paper sheets from the side wall 14 side.
(2) The paper sheet take-out belt 29, the transport belt 12a, the protrusions 38a to 38d, and the lever 20a (or 20b) are driven. The paper sheet take-out belt 29 is rotated by the rotation of the rotation rollers 30a to 30c. The conveyor belt 12a is rotated by rotating the rotation rollers 30g to 30i. The protrusions 38a to 38d are simultaneously moved in synchronization with the rotation speed of the conveyance belt 12a (that is, the conveyance speed of the paper sheet). In synchronism with the rotation speed of the conveying belt 12a, the lever 20a advances toward the paper sheet take-out belt 29 while contacting the paper sheet. That is, the paper sheets are conveyed by the conveyance belt 12a, the lever 20a, and the protrusions 38a to 38d. The transport speed at this time is substantially the same, and the paper sheets are transported at a speed that matches the take-out timing of the paper take-out belt 29.
(3) The paper sheets transported by the transport belt 12a and the like are vacuum-sucked by the paper sheet take-out belt 29 and taken out from the mounting table 10 one by one vertically.
[0074]
Here, the operation of the levers 20a and 20b will be described.
[0075]
The lever 20a protrudes from the window 36 of the side wall 14, contacts the paper sheet, and conveys the paper sheet while supporting the paper sheet, and is moved in the conveying direction. The protrusion of the lever 20a and the movement in the transport direction are moved by the rotation of the rotating shaft 34a, and the posture of the lever 20a with respect to the paper sheet after the protrusion (the direction orthogonal to the transport direction) is determined by the support shaft 32a. Is done by rotating.
[0076]
Until the rotating shaft 34a rotates 90 degrees from the position immediately before the lever 20a protrudes from the side wall 14, the lever 20a continues to be inserted between the paper sheets in the direction perpendicular to the conveying direction while moving in the conveying direction. While moving in the transport direction at a point that exceeds, it moves in the direction taken out between the sheets (that is, the direction opposite to the orthogonal direction). The lever 20a is moved inward without protruding to the side wall 14, and at the same time, the lever 20b is moved in the transport direction, and insertion between the sheets is started.
[0077]
Further, the protrusions 38a to 38d move into the side wall 14 in the vicinity of the right end (downstream in the transport direction) of the windows 37 and 37 in FIG. 10 (a) and do not protrude, and pass through the back side of the side wall 14 to the left end of the windows 37 and 37. (Upstream in the transport direction) It protrudes again from the vicinity and transports while supporting the paper sheets.
[0078]
In this way, by detecting the force in the conveying direction received from the sheet conveyed by the force detector of the lever 20a (or 20b), at a speed in accordance with the extraction timing (rotational speed) of the sheet extraction belt 29. The sheet can be efficiently taken out by being conveyed by the levers 20a and 20b. Depending on the value detected at this time, the conveying speed of the levers 20a and 20b is different from the conveying speed of the conveying belt 12a, and the speed is increased or decreased so that the conveying speed of the levers 20a and 20b becomes the conveying speed in accordance with the take-out timing. .
[0079]
Needless to say, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, a stepping motor or an induction motor may be used instead of a servo motor as long as the rotating roller can be rotated.
[0080]
In addition, when the number of paper sheets on the mounting table is reduced, a new sheet bundle is placed on the mounting table so that the back-up plate is lifted and comes into contact with the last paper sheet of the paper sheet bundle, The back-up plate can be moved to the tail end of the added sheet bundle and brought into contact with the last sheet so as to be continuously processed. In this case, the transport belt, the paper sheet take-out belt, and the lever are in operation.
[0081]
【The invention's effect】
As described above, according to the present invention, it is possible to improve the take-out efficiency by carrying paper sheets at a speed in accordance with the take-out timing, regardless of the size of the paper sheets to be carried and the carrying state. it can.
[Brief description of the drawings]
FIG. 1 is a block diagram of a paper sheet processing apparatus according to the present invention.
FIGS. 2A and 2B are a front view and a side view of the first embodiment of the paper sheet conveying and taking out apparatus of the present invention. FIGS.
FIG. 3 is a side view of the force detection means of the present invention.
FIG. 4 is an explanatory diagram for explaining the operation of the paper sheet conveying and taking out apparatus according to the present invention.
FIG. 5 is an explanatory diagram for explaining the operation of the force detection means of the present invention.
FIG. 6 is an explanatory diagram of a take-out operation of the paper sheet transport take-out device of the present invention.
FIG. 7 is a feedback diagram of a paper sheet conveying operation of the paper sheet conveying and taking out apparatus of the present invention.
FIG. 8 is an explanatory diagram of a paper sheet conveying operation of the paper sheet conveying and taking out apparatus according to the present invention.
FIG. 9 is a side view of a second embodiment of the paper sheet transporting and taking out apparatus according to the present invention.
FIG. 10 is a side view of a third embodiment of the paper sheet transporting and taking out apparatus according to the present invention.
FIG. 11 is a top view of a conventional paper sheet conveying and taking out apparatus.
[Explanation of symbols]
1 Paper sheet processing equipment
2 Paper sheet conveying and unloading device
3 Information reader
4 Paper sheet sorting device
10 mounting table
11,12 Conveyor belt
13 Paper sheet take-out means
14 Side wall
15 Backup plate
16 Guide
17a-17n, 25a, 25b, 30a-30c Rotating roller
18 Board
19 Separation mechanism
20a, 20b lever
21a, 21b Strain gauge
22a, 22b Solenoid coil
23a, 23b Linear guide
24 Servo motor
26a ~ 26c Optical sensor
27 Vacuum chamber
28 Chamber mask
29 Paper sheet take-out belt
31 Claw-shaped member

Claims

A mounting table on which a plurality of paper sheets can be mounted;
A plurality of conveyor belts that convey the paper sheets on the table in a standing direction in a standing state;
In the paper sheet transporting and taking out apparatus, comprising the paper sheet taking out means capable of taking out the paper sheets transported by the transport belt one by one from the placing table at a predetermined timing,
The transport belt is capable of changing a transport speed at which the paper sheet is transported in a direction in which the paper sheet is transported, and the paper sheet take-out means than the first transport belt and the first transport belt. Consisting of a second conveyor belt provided on the side,
Of the plurality of rotating rollers for rotating the first conveying belt, the rotating shaft of the rotating roller provided on the paper sheet take-out means side and the first of the plurality of rotating rollers for rotating the second conveying belt. The rotating shaft of the rotating roller provided on the side of the conveyor belt is arranged substantially coaxially and is arranged so as to pass the sheets conveyed by the first conveyor belt to the second conveyor belt, The first and second conveyor belts convey paper sheets at a speed in accordance with the paper sheet take-out timing of the paper sheet take-out means,
Inserted between the standing paper sheets being transported on the first and second transport belts at a portion where the paper sheets are passed from the first transport belt to the second transport belt. A first sheet bundle including the second sheet bundle and a second sheet bundle including the second sheet upstream of the transport direction adjacent to the first sheet in the standing state. A lever that is movable in the transport direction and the substantially vertical direction, and that transports the first sheet bundle in the transport direction at a transport speed substantially the same as the transport speed of the second transport belt;
The lever is provided in the lever that moves in the transport direction while in contact with the first paper sheet and is taken out between the first and second paper sheets in the vicinity of the paper sheet take-out means. Force detecting means for detecting the force received from the paper sheets of
A motor that varies the conveyance speed of the lever so that the conveyance speed of the lever differs from the conveyance speed of the second conveyance belt according to the detection result of the force detection means so as to meet the timing of the paper sheet take-out means. A paper sheet conveying and picking apparatus comprising:

The conveyance speed of the second conveyance belt is made larger than the conveyance speed of the first conveyance belt when the lever is inserted between the first and second paper sheets. The paper sheet conveying and taking out apparatus according to 1.

The lever is provided with first driving means for moving the lever in the substantially vertical direction and second driving means for moving the lever in the transport direction, and the lever is disposed between the paper sheets. When inserted, the lever is moved in the substantially vertical direction by the first driving means, and the lever is inserted between the first and second paper sheets, toward the paper sheet taking-out means. When the paper sheet is conveyed, the lever is moved in the conveying direction by the second driving means, and when the lever is moved in the vicinity of the paper sheet taking-out means, the lever is moved by the first driving means. 3. The paper sheet transporting and taking out apparatus according to claim 1, wherein the paper sheet is moved in a direction opposite to the substantially vertical direction when the lever is inserted.

Each of the lever and the first and second driving means is provided at least two, and when the first lever is moved from between the first and second paper sheets, the second lever 4. The paper sheet transporting and taking out device according to claim 3, wherein the paper sheet conveying and taking out apparatus is inserted between first and second paper sheets different from between the first and second paper sheets.

The force detecting means is a strain gauge or a pressure-sensitive conductive rubber that detects a force applied to a surface of the lever facing the first paper sheet or an inside thereof provided in the transport direction. 2. The paper sheet carrying and taking out apparatus according to claim 1.

The rotating roller of the first conveying belt and the rotating roller of the second conveying belt are embedded in the mounting table in the vicinity of the place where the rotating roller is provided substantially coaxially, and the lever is connected to the first and second levers. 2. The paper sheet transporting and taking out apparatus according to claim 1, further comprising insertion means that protrudes from the surface of the mounting table in accordance with a timing at which the lever is inserted for insertion between the paper sheets. .

A paper sheet transport and take-out device for taking out paper sheets one by one from a bundle of paper sheets in which a plurality of paper sheets are bundled;
An information reading device for reading information displayed on the paper sheet taken out by the paper sheet transporting and taking out device;
In a paper sheet processing apparatus comprising a paper sheet sorting device for sorting the paper sheets based on the information read by the information reading device,
The paper sheet transport and take-out device includes a mounting table on which a plurality of paper sheets can be mounted;
A plurality of conveyor belts that convey the paper sheets on the table in a standing direction in a standing state;
A mounting table on which a plurality of paper sheets can be mounted;
A plurality of conveyor belts that convey the paper sheets on the table in a standing direction in a standing state;
A paper sheet take-out means capable of taking out the paper sheets conveyed by the conveyor belt one by one from the mounting table at a predetermined timing;
The transport belt is capable of changing a transport speed at which the paper sheet is transported in a direction in which the paper sheet is transported, and the paper sheet take-out means than the first transport belt and the first transport belt. Consisting of a second conveyor belt provided on the side,
Of the plurality of rotating rollers for rotating the first conveying belt, the rotating shaft of the rotating roller provided on the paper sheet take-out means side and the first of the plurality of rotating rollers for rotating the second conveying belt. The rotating shaft of the rotating roller provided on the side of the conveyor belt is arranged substantially coaxially and is arranged so as to pass the sheets conveyed by the first conveyor belt to the second conveyor belt, The first and second conveyor belts convey the paper sheets at a speed in accordance with the paper sheet take-out timing of the paper sheet removing means,
Inserted between the standing paper sheets being transported on the first and second transport belts at a portion where the paper sheets are passed from the first transport belt to the second transport belt. A first sheet bundle including the second sheet bundle and a second sheet bundle including the second sheet upstream of the transport direction adjacent to the first sheet in the standing state. A lever that is movable in the transport direction and the substantially vertical direction, and that transports the first sheet bundle in the transport direction at a transport speed substantially the same as the transport speed of the second transport belt;
The lever is provided in the lever that moves in the transport direction while in contact with the first paper sheet and is taken out between the first and second paper sheets in the vicinity of the paper sheet take-out means. Force detecting means for detecting the force received from the paper sheets of
A motor that varies the conveyance speed of the lever so that the conveyance speed of the lever differs from the conveyance speed of the second conveyance belt according to the detection result of the force detection means so as to meet the timing of the paper sheet take-out means. A paper sheet processing apparatus comprising: