JP2004299124A

JP2004299124A - Method and apparatus for accumulating sheetlike body

Info

Publication number: JP2004299124A
Application number: JP2003092662A
Authority: JP
Inventors: Masaru Ishiguro; 勝石黒; Narimitsu Kawai; 成光河合
Original assignee: Taihei Machinery Works Ltd
Current assignee: Taihei Machinery Works Ltd
Priority date: 2003-03-28
Filing date: 2003-03-28
Publication date: 2004-10-28
Anticipated expiration: 2023-03-28
Also published as: JP3848634B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for letting sheetlike bodies such as veneers, plywoods, synthetic resin sheets or the like, which are fed on a conveyor at a high speed from a pre-stage process, fall smoothly and accurately above an accumulation position to be accumulated, and an apparatus therefor. <P>SOLUTION: A restriction means for restricting the front end parts of the sheetlike bodies is installed at the position corresponding to the advance limit of a stretchable conveyor and arranged, for example, at the almost central part within the interval between a pair of left and right machine frames extending in the feed direction of the sheetlike bodies. The restriction means is constituted by respectively attaching the base ends of a pair of upper and lower grasping pieces to a grasping fluid cylinder in a revolvable manner to grasp each of the sheetlike bodies, which are positioned at the almost central part in the direction crossing the feed direction, to hold the front end part thereof from above and below by this grasping movement to be prevented from being moved in the feed direction accompanied by the retreat movement of the stretchable conveyor. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【産業上の利用分野】
本発明は、コンベヤ上を前段工程から高速状態で搬送されてくる、ベニヤ単板、合板、合成樹脂板等の板状体を、堆積位置の上方において、円滑且つ正確に落下堆積させる方法及び装置に関するものである。
【０００２】
【従来の技術】
従来より、板状体の堆積位置の上方に向かって伸縮可能なコンベヤを設け、板状体を載置した状態で伸縮コンベヤを伸長させて、縮小するときに板状体を堆積位置へ落下させる方法が公知である。
【０００３】
【発明が解決しようとする課題】
しかしながら、伸縮コンベヤが伸長した状態から縮小して板状体を堆積位置へ落下させる際、落下するまでの距離、負圧等による板状体の舞い上がり等によって堆積位置へ正確に堆積できないことがある。このため、板状体の堆積状態にばらつきが発生して、次段行程における取り出し作業に支障を来す結果となる。
【０００４】
【課題を解決するための手段および発明の効果】
上記課題を解決するために、本発明の板状体の堆積方法は、
前後部に位置する可動プーリ間に巻き掛けされたコンベヤベルトの高速回転に伴って可動枠が移動自在となる伸縮コンベヤ上に板状体を載置させたまま、板状体の堆積位置の上方まで移動させて停止した後、一旦板状体を拘束して伸縮コンベヤベルトの緊張状態を保持しながら可動枠を急速後退させることによって、伸縮コンベヤの前部に位置する可動プーリを反時計方向へ回転させて板状体を引き抜き、板状体の前後部の落下誤差を小として堆積させることを特徴とする。
【０００５】
また、上記課題を解決するために、本発明の板状体の堆積方法は、
板状体の堆積位置の上方に伸縮する可動枠はその前部に可動プーリを配置し、前後方向に伸縮する可動枠に対して下方に他の可動枠を独立して設けて、前記板状体の搬送方向に対応する後部可動プーリを支承した可動枠の動作寸法よりも小さくし、前記可動枠には後部可動プーリを配置して両可動プーリ間に巻き掛けしたコンベヤベルトの高速回転に伴って前後方向に伸縮する可動枠は伸縮コンベヤを構成し、この伸縮コンベヤ上を搬送される板状体は、堆積位置上方間際で減速しながら停止したとき、一旦板状体を拘束してベルトの緊張状態を保持しながら前記後部可動プーリを配置した可動枠を急速伸長させるとともに、前記可動プーリを配置した可動枠を急速後退させ、板状体の前後部の落下誤差を小として堆積させることを特徴とする。
【０００６】
前記伸縮コンベヤは板状体の搬送方向の左右一対に設置された機枠を案内として板状体の堆積位置まで伸縮可能としている。すなわち、機枠の上面にはスライドレール或いはリニヤウエイが各々敷設され、各移動部材上にリニヤブロックを取り付けている。このリニヤブロックの前部と後部を連結して可動枠を片持ち状に取り付けている。そして、この伸縮コンベヤの板状体搬送面はほぼ水平状態に設置して前進・後退する構成としても良いが、好適には板状体の堆積位置の方向に向かって下り勾配に設置する。このように伸縮コンベヤの板状体搬送面を搬送方向に向かって下り勾配とすれば、伸縮コンベヤの後退時には可動枠部分が勾配分の引き上げ角度だけ板状体の堆積位置から離隔することになる。したがって、堆積直後の板状体に負圧で舞い上がったり、曲がり、捻り、反り、特に上向きの反り等があっても、板状体の後端部分と後退途上の伸縮コンベヤとの接触が回避される。このため、板状体が堆積されるその上面高さをできる限り伸縮コンベヤの搬送面に近づけることが可能となり、板状体の落下距離を小として堆積サイクルの短縮化が図れる。
【０００７】
板状体はこの伸縮コンベヤ上へ人手を介して移乗させても良いが、通常、前段工程から例えば中継コンベヤを経て移乗される。次いで、左右一対のベルトコンベヤを高速で回転させると板状体は前方へ搬送される。すなわち、前記可動枠をその後退限位置から機枠に敷設された移動部材上にリニヤブロックを介して前進させると、前後一対に支承された前後部可動プーリはその間隔を保持し、且つベルトの緊張状態を保持したまま急速に移動する。そして、可動枠が板状体の堆積位置上方へ、即ち、伸縮コンベヤをその前進限位置に至る間際に減速しながら停止させる。このとき、伸縮コンベヤ上に載置状態の板状体はその前部を拘束体によって拘束されて搬送方向への移動を禁止される。この拘束する部位は板状体の前端１箇所、或いは搬送方向と交差する方向へ任意間隔を置いた複数箇所としてもよい。この拘束体は、好適には板状体の厚み方向から、すなわちその上下方向から挟時した状態としている。
【０００８】
また、伸縮コンベヤの前進限位置から左右一対のベルトコンベヤを逆回転させて前記可動枠をその前進限位置から前記移動部材上にリニヤブロックを介して後退させるとき、板状体のみが前端を拘束されて現位置に停止することになる。そして、伸縮コンベヤの後退動に伴って板状体が伸縮コンベヤ上から引き抜かれた状態となるとき、板状体の前端部分を拘束することも可能である。このようにすれば、板状体は伸縮コンベヤの後退動に随伴することなく、板状体の堆積位置に正確に堆積することができる。
【０００９】
上記課題を解決するために、本発明の板状体の堆積装置の構成は、
機枠の前後に一定間隔を置いて一対の固定プーリを支承し、この機枠上部を案内として、前方に位置する板状体の堆積位置に対して進退自在とした可動枠に板状体の長さを置いて一対の前後可動プーリを支承すると共に、各プーリ間にベルトを折り返しながら無端状に巻き掛けして伸縮コンベヤとし、一方この伸縮コンベヤ上に載置されて堆積位置まで搬送される板状体を拘束して現位置に停止させる拘束体を少なくとも備えたことを特徴とする。
【００１０】
また、上記課題を解決するために、本発明の板状体の堆積装置の構成は、
機枠の前後に一定間隔を置いて一対の固定プーリを支承し、この機枠上部を案内として、前方に位置する板状体の堆積位置に対して進退自在とした可動枠を設けてその先端に前部可動プーリを支承し、この前部可動プーリを配置した可動枠の下方に、この可動枠とは異なる独立した他の可動枠を設けて後部可動プーリを支承し、前記固定プーリと可動プーリとの各プーリ間にベルトを折り返しながら無端状に巻き掛けるとともに、後部可動プーリを支承した可動枠の駆動時に前記前部可動プーリを支承した可動枠が進退して板状体を堆積位置の上方に搬送する伸縮コンベヤを構成し、一方この伸縮コンベヤ上に載置されて堆積位置まで搬送される板状体を拘束して現位置に停止させる拘束体を少なくとも備えたことを特徴とする。
【００１１】
伸縮コンベヤは機枠の前後に一定間隔を置いて一対の固定プーリを支承し、この機枠上部を案内として、前方に位置する板状体の堆積位置に対して進退自在とした可動枠に、少なくとも堆積する板状体の長さを置いて一対の前後可動プーリを支承すると共に、各プーリ間にベルトを折り返しながら無端状に巻き掛けしたものである。
【００１２】
この伸縮コンベヤを構成している機枠は板状体の搬送方向の両側に設置され、その上面に移動部材を介して軌条走行面としている。そして、この機枠はほぼ水平状態に設置して前進・後退する構成としても良いが、好適には板状体の堆積位置の方向に向かって下り勾配に設置する。このように伸縮コンベヤの板状体搬送面を搬送方向に向かって下り勾配とすれば、伸縮コンベヤの後退時には可動枠部分が勾配分の引き上げ角度だけ板状体の堆積位置から離隔することになる。
【００１３】
そして、伸縮コンベヤの前進限に相当する位置には、板状体の前端部分を拘束する拘束手段が設置されている。この拘束手段は搬送方向に対して左右一対に延びる前記機枠の間隔内のほぼ中央部に１個または搬送方向と交差する方向に任意間隔を置いて複数個配置されている。例えば、この拘束手段は上下一対の挟持片の基端が挟持用の流体シリンダに旋回可能にそれぞれ取り付けられて構成されている。この上下一対の挟持片は挟持力を増大させるために板バネ状としており、搬送方向と交差する方向のほぼ中央部分に位置する板状体の前端部分を上下から挟むように挟持している。この挟持動によって板状体を拘束して伸縮コンベヤの後退動に伴う搬送方向への移動を禁止することになる。
【００１４】
また、板状体を落下堆積させるにはその自重による落下の他、その前端部分を強制的に押し下げることも場合もある。この板状体をその堆積位置まで押し下げるには、前端を拘束している上下一対の挟持片を上下方向に可動させれば足りるが、次のような構成とすることも可能である。すなわち、上下一対の挟持片の両端位置に板状体の前端部に対して出没可能、且つ上下動可能な押し下げ手段を設置し、この押し下げ手段を板状体の前端に当接して板状体の堆積位置まで押し下げ可能としている。
【００１５】
具体的には、この押し下げ手段は上下方向に設置された案内体に上下動用の流体シリンダを取り付け、そのピストンロッドに接続されている。そして、このシリンダ室への流体の給排によって案内体に沿って押し下げ体を上下動可能としている。一方、この押し下げ体は出没用の流体シリンダのピストンロッドに取り付けられて、堆積位置の方向へ突出・没入可能とされ、突出持に板状体の前端部分に至り、没入持に板状体の前端部分から退避することになる。また、この押し下げ体の出没動並びに上下動は上述の流体動のほか、クランク動、或いは垂直方向に敷設されたラックギヤにピニオンギヤを歯合させ、ピニオンギヤを回転させることによってピニオンギヤに取り付けた押し下げ体を出没動並びに上下動させることも可能である。
【００１６】
さらに、板状体の前端を押し下げるには上述した出没動並びに上下動の他にこれらを合成した軌跡となる旋回動とすることも可能である。すなわち、板状体の搬送方向の延長線上に一定間隔離隔して押し下げ体の基端近傍を軸支してその遠位端側を自由端とし、軸部分を少なくともある角度回転させる。この軸の回転に伴い、その遠位端側にある押し下げ体を旋回させて板状体の上方へ介在させてから前端部分を押し下げる。この場合、押し下げ体の遠位端側は円弧状の軌跡を描くことになるが、板状体を押し下げる距離はその昇降台までに限定されており、ほぼ直線域に近い領域を得ることができる。
【００１７】
また、前記板状体の堆積位置の前部には、堆積位置の搬送方向の前方に離隔して堆積位置に対して前進・後退可能とした規制手段を設置することもある。例えば、規制体用の流体シリンダのピストンロッドに規制体を取り付け、流体の給排によって規制体を堆積されている板状体および／または堆積される板状体の前端部分を揃えることも可能である。
【００１８】
【発明の実施の形態】
以下、本発明の方法に使用される伸縮コンベヤの一実施例を説明する。
機枠１の前後に搬送方向に直交して一対の軸２，３を支承させ、各軸部の両端に前、後部固定プーリ４，５を固着する。前記機枠１の上面にはスライドレール或いは図示のようなリニヤウエイ等の移動部材６が各々敷設され、各移動部材６上を移動するリニヤブロック７が前後に任意間隔を置いて配置されている。そして、これらリニヤブロック７の前部同志と後部同志は各々連結梁８を介して連結すると共に、前後の連結梁８には可動枠９の後部が取り付けられ、この可動枠９は片持ち状態のまま、移動部材６に沿って前後に移動できる。
【００１９】
この一対の可動枠９の前部には前部可動プーリ１０を支承し、また、この前部可動プーリ１０の後方下部には前部可動プーリ１０と一定の距離を置いて後部可動プーリ１１を回転自在に支承している。前記各固定プーリ４，５間にこれら前後部可動プーリ１０，１１が介在するように、すなわち、機枠１の後部固定プーリ５から可動枠９の前部可動プーリ１０、可動枠９の後部可動プーリ１１、機枠１の前部固定プーリ４へと順次折り返し、機枠１の後部固定プーリ５にベルト１２を無端状に、且つバランスウエイト、タイナープーリ等（図示せず）を介して緊張状態にて巻き掛けすることでコンベヤを構成しており、このコンベヤによって板状体１７を搬送する。
【００２０】
前記ベルト１２が巻き掛けされた後部軸３は鎖車を介してベルト回動用の原動機１３に接続され、このベルト回動用の原動機１３の制御によってベルト１２の駆動、減速、停止を制御している。また、前記機枠１の前後に可動枠進退用の原動機１５で駆動される駆動軸１４を備え、前後の駆動軸１４を連動する鎖車に前記可動枠９が取り付けられており、前記可動枠進退用の原動機１５は鎖車を介して後部の駆動軸１４を回転して、前記可動枠９の移動部材６に沿った進退動を制御している。また、前記機枠１の前方で、可動枠９の前進限位置の下方には板状体１７をパレットの上に堆積するための板状体１７の堆積位置を構成する昇降台１８が設置され、昇降台１８には堆積された板状体１７の上面高さを検出する検出器を備え、この検出器の信号によって堆積された板状体１７の上面が常時一定になるように、昇降台１８は高さ制御されている。尚、図１から図３の可動枠９は片持ち状であるので、コンベヤ上を搬送される板状体１７は搬送方向に直交する長さに対する制限はない。
【００２１】
可動枠進退用の原動機１５を駆動させると、後退限に位置する可動枠９は片持ち状態を保持したまま、移動部材６上をリニヤブロック７を介して前進する。そして、前後一対に支承された前後部可動プーリ１０，１１はその間隔Ｌを保持し、且つベルト１２の緊張状態を保持したまま水平面内にて急速に前進移動することになる。また、この状態から可動枠進退用の原動機１５を逆転駆動すると、前進限に位置する可動枠９は急速に後退移動するから、前記板状体１７の堆積位置の上方に向かって進退する伸縮コンベヤ１６が構成できる。そして、伸縮コンベヤ１６上を搬送される板状体１７は伸縮コンベヤ１６が進退することで下方の板状体１７の堆積位置に落下堆積される。
【００２２】
前記伸縮コンベヤ１６の前進限に相当する位置には、搬送される板状体１７の前端部分を拘束する拘束手段５１が設置されている。この拘束手段５１は搬送方向に対して左右一対に延びる前記機枠１の間隔内のほぼ中央部に１個または搬送方向と交差する方向に任意間隔を置いて複数個配置されている。図１においてはその間隔内の中央部に１個の拘束手段５１が設置されており、詳細を図１１に示すように上下一対の挟持片５２，５３の基端５４，５５が挟持用の流体シリンダ５６に旋回可能にそれぞれ取り付けられている。この上下一対の挟持片５２、５３は挟持力を増大させるために板バネ状としており、流体シリンダ５６が作動すると搬送方向と交差する方向のほぼ中央部分に位置する板状体１７の前端部分は一対の挟持片５２，５３によって上下から挟まれ、この挟持動作によって板状体１７を拘束して伸縮コンベヤ１６の後退動に伴う戻り方向への移動を禁止することになる。
【００２３】
また、板状体１７を落下堆積させるにはその自重による落下の他、その前端部分を強制的に押し下げることも場合もある。この板状体１７をその昇降台１８まで押し下げるには、前端を拘束している上下一対の挟持片５２，５３を上下方向に可動させれば足りるが、次のような構成とすることも可能である。図１に示すように、上下一対の挟持片５２，５３の両端位置に板状体１７の前端部に対して出没可能、且つ上下動可能な押し下げ手段６１を設置し、この押し下げ手段６１を板状体１７の前端に当接して板状体１７の昇降台１８まで押し下げ可能としている。
【００２４】
具体的には、図１２に示すように、この押し下げ手段６１は上下方向に設置された案内体６２に上下動用の流体シリンダ６３を取り付け、そのピストンロッド６４に押し下げ体６５が接続されている。そして、このシリンダ室への流体の給排によって案内体６２に沿ってこの押し下げ体６５を上下動可能としている。一方、この押し下げ体６５は前記ピストンロッド６４の先に取り付けられて上下動する出没用の流体シリンダ６６のピストンロッド６７に取り付けられており、昇降台１８の上方に対して突出・没入可能とされ、突出持に板状体１７の前端部の上方に至り、没入持に板状体１７の前端部分から退避することになる。また、この押し下げ体６５の出没動並びに上下動は上述の流体動のほか、クランク動、或いは垂直方向に敷設されたラックギヤにピニオンギヤを歯合させ、ピニオンギヤを回転させることによってピニオンギヤに取り付けた押し下げ体６５を出没動並びに上下動させることも可能である。そして、前記伸縮コンベヤ１６を後退させると共に、押し下げ体６５は板状体１７の上方に進出し、前記挟持片５２，５３を開きながら押し下げ手段６１の押し下げ体６５が降下すれば、板状体１７を堆積位置である昇降台１８の上に正しく落下させることができる。
【００２５】
さらに、図１３に示すように、板状体１７の前端を押し下げるには上述した出没動並びに上下動の他にこれらを合成した軌跡となる旋回動とすることも可能である。すなわち、板状体１７の搬送方向の延長線上に軸６８を設け、この軸６８に取り付けた押し下げ体６５は軸６８部分を中心に少なくともある角度回転することができる。そして、押し下げ体６５の遠位端側を板状体１７の上方へ位置させてから、流体シリンダなどによって押し下げ体６５が回転すると、押し下げ体６５の前端部分は押し下げられ、板状体１７は昇降台１８の上に落下堆積することができる。この場合、押し下げ体６５の板状体１７を押し下げる遠位端側は円弧状の軌跡を描くことになるが、板状体１７を押し下げる距離はその昇降台１８に堆積された板状体１７も上面までに限定されており、前記円弧状の軌跡はほぼ直線域に近い軌跡となる。
【００２６】
また、前記板状体１７の昇降台１８の前部には、昇降台１８の搬送方向の前方に離隔して昇降台１８に対して前進・後退可能とした規制手段７１を設置することもある。例えば、図１４に示すように、流体シリンダ７２のピストンロッド７３の先に平板状の規制体７４を取り付け、流体シリンダ７２への流体の給排によって、堆積された板状体１７および／または堆積途中の板状体１７はその前端部分に規制体７４が押し付けられ、板状体１７を揃えて積み重ねることも可能である。
【００２７】
図３に示すように、前記伸縮コンベヤ１６が伸長位置に保持した状態で、ベルト回動用の原動機１３を駆動すると、板状体１７は伸縮コンベヤ上を搬送され、前記堆積位置の上方に至る。そして、ベルト回動用の原動機１３を停止して伸縮コンベヤ１６のベルト１２の回転を停止し、次いで、可動枠進退用の原動機１５を起動させると、伸縮コンベヤ１６の構成部品である前進限に位置する可動枠９は、移動部材６上をリニヤブロック７を介して後退する。このとき、この可動枠９の前後一対に支承された前、後部可動プーリ１０，１１は、その間隔Ｌを保持ながら、且つベルト１２の緊張状態を保持したまま急速に後退して昇降台１８上方から退避し、これによって伸縮コンベヤ１６は後退位置に至る。
【００２８】
一方、伸縮コンベヤ１６の後退位置への移動に伴い前記板状体１７の前端部分が突出した位置で、板状体１７の挟持用の流体シリンダ５６が作動して、伸縮コンベヤ１６上にあった板状体１７の前端部分のほぼ中央部が上下より一対の挟持片５２，５３で挟持拘束され、この挟持片５２，５３によって板状体１７は拘束された位置を保持する。また、これに同期して流体シリンダ６６によって出没する押し下げ体６５を板状体１７前端部分の上方に突出させる。その後、伸縮コンベヤ１６が後退位置に至ると、図１の実施例では押し下げ手段６１が２ヶ所配置されているので、この押し下げ手段６１の上下動用の流体シリンダ６３を下降して、板状体１７の前端部分の２ヶ所を押し下げ、前記昇降台１８上に板状体１７を堆積する。また、昇降台１８に堆積する板状体１７のための規制手段７１の流体シリンダ７２を作動させることによって、板状体１７が昇降台１８上に堆積される途中で、または、昇降台１８上に堆積された後で、規制体７４は昇降台１８に向かって進出して、昇降台１８上に堆積される板状体１７の前端部分を揃えている。
【００２９】
その後、規制手段７１の流体シリンダ７２を逆作動させて規制体７４を旧位置へ復帰させ、また、拘束手段５１の流体シリンダ５６を逆作動させると一対の挟持片５２，５３が旋回して板状体１７の前端部分を開放し、また、押し下げ手段６１の上下動用の流体シリンダ６３と出没用の流体シリンダ６６とを逆作動させて押し下げ体６５を現位置に復帰させており、この動作によって昇降台１８上に堆積されている板状体１７および／または堆積される板状体１７の前端部分から規制手段７１や拘束手段５１や押し下げ手段６１を退避させることになる。
また、後退位置に至った伸縮コンベヤ１６の後部は次位の板状体１７が搬送される中継コンベヤ２５に連接しており、この中継コンベヤ２５から搬送される次位の板状体１７を搬送するために、可動枠進退用の原動機１５を起動すると、可動枠９の前、後部可動プーリ１０，１１はベルト１２の緊張状態を保持し、かつその間隔Ｌを保持したまま、板状体１７の搬送時とは逆方向に回転して、可動枠９の前部を昇降台１８の上方に進出させている。そして、前記中継コンベヤ２５上を搬送される次位の板状体１７はベルト回動用の原動機１３によって回動する伸長状態の伸縮コンベヤ１６に乗せられて、昇降台１８の上方に搬送される。
【００３０】
以後、上記動作を繰り返すことによって、中継コンベヤ２５によって前段工程から搬送されてくる板状体１７は伸縮コンベヤ１６上を高速にて搬送され、昇降台１８の上方から昇降台１８の上に順次堆積することになり、この時、昇降台１８上の板状体１７の堆積量に応じて検知器が作動し、昇降台１８は前進限位置にある伸縮コンベヤ１６との任意間隔を保ちながら下降することになる。
【００３１】
尚、可動枠９の進退動によって移動する間隔Ｌは昇降台１８上に堆積される板状体１７の搬送方向の長さを基準に設定され、図１から３の実施例においては、この長さ寸法を片持ち状の可動枠９の前後に水平面内にて支承された前、後部可動プーリ１０，１１間隔に匹敵させているが、この実施例のように可動枠９は後部にリニヤブロック７を取付けた片持ち状に限定されるものではなく、このリニヤブロック７は可動枠９の前後に取着して移動部材６上を移動できるようにしてもよい。この場合、移動部材６は可動枠９の前進限位置である堆積位置まで敷設する必要があり、板状体１７の搬送方向に直交する長さは相対向する移動部材６の間隔内に制限されることになる。
また、図４に示す如く、前部固定プーリ４０と後部可動プーリ５０を上下方向に任意の間隔を置いて、多段に折り返しながら複数対設置することによって、機枠１に取付けた前、後部固定プーリ４０，５０の間隔を小とすることができ、設置面積の縮小も可能となる。この図４の実施例のように、２対の前部固定プーリ４０，後部固定プーリ５０と前部可動プーリ１００，後部可動プーリ１１１とすれば、前部可動プーリ１００の移動間隔Ｌに対して、水平面内における後部可動プーリ１１１の移動間隔はＬ／２となる。
【００３２】
また、図５に示すものは、水平方向において進退する可動枠９の移動間隔Ｌを上下方向に置換するものであり、これは水平方向において進退動する可動枠９部分と、この水平方向において可動枠９が進退動する距離Ｌを上下方向に置換する垂直可動枠９０部分とからなる。即ち、機枠１の上下方向にスライドレール或いはリニヤウエイ等の移動部材６０を敷設し、この移動部材６０上を移動するリニヤブロック７７が上下に任意間隔を置いて配置され、このリニヤブロック７７に前記垂直可動枠９０が取付けられており、これらリニヤブロック７７や垂直可動枠９０を前、後部固定プーリ４０，５０間隔内の下方に位置する如く取着している。前記可動枠９の前部に前部可動プーリ１００を、また垂直可動枠９０の下部に後部可動プーリ１１１を各々設置し、可動枠９の水平方向の前進限位置において垂直可動枠９０が上限位置に、また可動枠９の水平方向の後退限位置において垂直可動枠９０が下限位置に至るように制御すれば、伸縮コンベヤ１６と機枠１の設置面積は大幅な縮小が可能となるものである。
【００３３】
さらに、図６に示すものは、上下方向において進退動する後部可動プーリ１１１を前後方向に任意の間隔を置いて、多段に折り返しながら複数対設置したものであって、図５に比して水平方向における可動枠９の前部可動プーリ１００の移動間隔Ｌに対して、垂直可動枠９０に設置した後部可動プーリ１１１の上下方向における移動間隔を小とすることができ、上下方向の設置面積の縮小も可能である。図６の実施例のように２対の前部固定プーリ４０、後部固定プーリ５０と、前部可動プーリ１００と後部可動プーリ１１１とすれば、前部可動プーリ１００の水平方向における移動間隔Ｌに対して、後部可動プーリ１１１の上下方向の移動間隔はＬ／２となる。
【００３４】
なお、上述したように伸縮コンベヤ１６を配置する機枠１の上方をほぼ水平状態に設置して伸縮コンベヤ１６が前進・後退する構成としても良いが、図１０に示すように板状体１７の堆積位置の方向に向かって伸縮コンベヤ１６を下り勾配に設置してもよい。このように伸縮コンベヤ１６の機枠１を搬送方向に向かって下り勾配とすれば、伸縮コンベヤ１６の後退時には可動枠９部分が勾配分の引き上げ角度だけ板状体１７の堆積位置から離隔することができると共に、前進位置では堆積した板状体１７と伸縮コンベヤ１６の前部を接近させることができる。したがって、伸縮コンベヤ１６が後退中で堆積直後の板状体１７が負圧で舞い上がったり、板状体１７に曲がり、捻り、反り、特に上向きの反り等があっても、板状体１７の後端部分と後退途上の伸縮コンベヤ１６との接触が回避される。
【００３５】
図７および図８は、前記伸縮コンベヤ１６を搬送方向へ直列的に複数個配置して、その間に板状体１７の堆積位置を構成する昇降台１８を配置した実施例が示されており、配送される板状体１７の等級、種別、品質等に応じて仕分け位置を決定して、この板状体１７を指定した昇降台１８に仕分け堆積する。図示例における伸縮コンベヤ１６は３個からなり、便宜上、図５にて示した機枠１の上下方向に移動する垂直可動枠９０を介して水平方向に伸縮コンベヤ１６が伸縮する方式を採用し、板状体１７が堆積する位置である昇降台１８は３台設置されている。また、後段に位置する伸縮コンベヤ１６の可動枠９の前進限位置と、その前方に位置する伸縮コンベヤ１６の後部固定プーリ５間にクリアランスがある場合、このクリアランス内に受け渡しを行なう中継コンベヤ２５を設置するか、或いは後方に位置する伸縮コンベヤ１６の可動枠９の前進限位置が、その前方に位置する伸縮コンベヤ１６の後部固定プーリ５内に若干入り組んだ位置として、伸縮コンベヤ１６上を搬送される板状体１７が前方の伸縮コンベヤ１６への移乗を図るものとする。
【００３６】
図示例において、後方に位置する伸縮コンベヤ１６の可動枠９の作動位置内と、その前方に位置する伸縮コンベヤ１６の後部固定プーリ５間にはクリアランスがあるが、このクリアランスには前記記載した如き中継コンベヤ２５が介在されている。この中継コンベヤ２５は後方に位置する伸縮コンベヤ１６と同一搬送面としており、後段に位置する伸縮コンベヤ１６から板状体１７はスムーズに中継コンベヤ２５に移乗できる。また、その後部位置は後方に位置する伸縮コンベヤ１６が板状体１７を堆積する位置よりも少なくとも前方に位置させて、板状体１７が中継コンベヤ２５に邪魔されずに昇降台１８の上に堆積できるようになっている。また、この中継コンベヤ２５の前部位置は、前方に位置する伸縮コンベヤ１６の可動枠９の作動時に少なくとも干渉しない位置としている。図示例では、前方に位置する伸縮コンベヤ１６の搬送面を中継コンベヤ２５の搬送面より若干低く設定している。このため、板状体１７は前方に位置する伸縮コンベヤ１６の作動状態に影響されることなく、前方への搬送距離を短くすることができる。尚、実施例の如く搬送方向へ直列的に伸縮コンベヤ１６が３台設置されている場合には、板状体１７の搬送面が３段階に亘って低く設定されることになる。
【００３７】
図示例において、最後部に位置する伸縮コンベヤ１６の後端位置には、中継コンベヤ２５と同様に搬入コンベヤ２７が設置されている。この搬入コンベヤ２７は無段変速機２６を介して駆動されており、無段変速機２６によって搬入コンベヤ２７の速度を変えて前段の工程から搬送されてくる板状体１７を適切なタイミングで最後部に位置する伸縮コンベヤ１６の上に乗せることができる。この搬入コンベヤ２７には搬送される板状体１７の仕分け位置２８が設置され、この仕分け位置２８では前段工程から搬送されてくる板状体１７の仕分けを人為的に判別するか、若しくは板状体１７の等級、性状、欠点を検知する検知器を設置し、実施例では板状体１７を３台の昇降台１８のうちの何れかへ仕分け堆積する仕分け信号２９を発信するものである。尚、この搬入コンベヤ２７と最後部に位置する伸縮コンベヤ１６の始端位置との間のクリアランスをなくすために、伸縮コンベヤ１６の後部固定プーリ５内に搬入コンベヤ２７の先端部を若干入り組ませても良く、また搬入コンベヤ２７と伸縮コンベヤ１６の始端位置との間に中継コンベヤ２５を介在設置することもできる。さらに、この搬入コンベヤの代わりにこの中継コンベヤ２５自体に搬入コンベヤ２７の働きをさせても良い。
【００３８】
搬入コンベヤの仕分け位置において、仕分け判別された板状体１７を各昇降台１８上へ仕分け堆積する制御系としては、搬入コンベヤ２７上の仕分け位置２８から仕分け堆積するように設定した各昇降台１８までの板状体１７の移動距離を所定距離としてセットし、この所定距離が計測された時点で伸縮コンベヤ１６の作動系を制御したり、或いは判別された当該板状体１７が仕分けすべき昇降台１８上に至った時を検知する検知手段を備えて、伸縮コンベヤ１６の作動系を制御することになる。
【００３９】
具体的には図７に示す前者の制御系によれば、前記搬入コンベヤ２７上の仕分け位置２８における仕分け信号２９は距離設定器３１と連係され、仕分け位置２８から搬送される板状体１７の堆積位置までの距離Ｓ１、Ｓ２、Ｓ３が、伸縮コンベヤ１６における板状体１７の所定の移動距離を１パルスとするパルス量に変換して、搬送されるそれぞれの板状体１７に対応する記憶素子を備えた記憶器３２に出力され、その記憶素子に記憶されている。また、前記搬入コンベヤ２７の無段変速機２６は搬入コンベヤ２７の駆動回転に伴う板状体１７の前記所定の移動距離を１パルスとするパルス量を発信するパルス発信器３０と連係しており、このパルス発信器３０は前記距離設定器３１に接続され、搬入コンベヤ２７上における板状体１７の移動パルス量がこの距離設定器３１を介して記憶器３２に出力される。この記憶器３２は伸縮コンベヤ１６の作動系であるベルト回動用の原動機１３並びに可動枠進退用の原動機１５と直列的に接続されていて、これらを制御する。
【００４０】
この制御回路によれば、搬入コンベヤ２７上の仕分け位置２８における板状体１７の仕分け信号２９がパルス量に変換されて距離設定器３１から記憶器３２に記憶されており、搬送される板状体１７の可変速である搬入コンベヤ２７上の移動パルス量と、一定速度で送られる伸縮コンベヤ１６上の移動パルス量の合計が記憶素子２８で記憶する堆積位置までの距離となって、この記憶器３２内の各記憶素子がカウントアップすると、前記記憶器３２は伸縮コンベヤ１６のベルト回動用の原動機１３を停止させると共に、当該記憶素子をリセットし、また、可動枠進退用の原動機１５を起動させて前進限に位置する可動枠９を後退させ、板状体１７を搬入コンベヤ１６の仕分け位置である設定された堆積位置の昇降台１８に堆積するものである。尚、当該板状体１７が仕分け堆積される伸縮コンベヤ１６上において、停止間際の伸縮コンベヤ１６のベルト１２の回動速度を減速して停止位置における板状体１７の慣性を減衰させるべく、制御回路中の前記距離設定器３１に補正設定器３３を接続して、積算されるパルス量がカウントアップに近づくと、伸縮コンベヤ１６のベルト回動用の原動機１３に対して補正設定器３３が減速指令を複数段階発信して板状体１７の搬送途上の位置に見合った速度制御をしてもよい。
【００４１】
また、後者の制御系としては、図８に示す如く、前記搬入コンベヤ２７の仕分け位置２８で仕分け判別された板状体１７が通過する毎に、その搬送順を検出するカウンタ３４を搬入コンベヤ２７上に備え、前記搬入コンベヤ２７の仕分け位置２８から発信される板状体１７の堆積位置を指定する仕分け信号２９は、前記カウンタ３４からの板状体１７の検出信号３５と同期させて、記憶器３２内の各記憶素子に出力している。一方、板状体１７の各堆積位置に設置した昇降台１８の上方には、伸長状態の伸縮コンベヤ１６上を搬送される板状体１７の前端を検出する光電管、リミットスイッチ等の検出器３６が設置され、この検出器３６の出力は記憶器３２に接続され、伸縮コンベヤ１６上を搬送される板状体１７の検出器３６による検知出力が前記記憶器３２に出力されている。この記憶器３２は記憶された仕分けデータと、搬送される板状体１７を特定するカウンタ３４による記憶データと、検出器３２からの伸縮コンベヤ１６上を搬送される板状体の検知出力に基づいて、当該板状体１７が前記仕分け位置２８まで搬送されて、判別された仕分けすべき昇降台１８上に至った時に、前記伸縮コンベヤ１６の作動系を制御することになる。
【００４２】
即ち、仮に仕分け位置２８で判別された板状体１７が最前部である３台目の昇降台１８上に堆積するものであれば、１台目並びに２台目に設置された検出器３６が伸縮コンベヤ１６上で板状体１７を検知できても、前記カウンタ３４からの記憶データに基づいて、前記記憶器３２内の記憶素子から当該伸縮コンベヤ１６の作動系に対する出力禁止信号３７が発信されており、板状体１７はそのまま回動を続ける１台目並びに２台目の伸縮コンベヤ１６のベルト１２上を通過することになる。３台目の伸縮コンベヤ１６のベルト１２上で当該板状体１７を検出器３６が検知すると、前者の制御系と同様、記憶器３２は３台目の伸縮コンベヤ１６のベルト回動用の原動機１３を停止させると共に、当該記憶素子をリセットし、また、可動枠進退用の原動機１５を起動させて前進限に位置する可動枠９を後退させ、当該板状体１７を搬入コンベヤ２７の仕分け位置で設定された堆積位置の昇降台１８に堆積させるものである。また、前者の制御系と同様、当該板状体１７が仕分け堆積される伸縮コンベヤ１６上において、停止間際の伸縮コンベヤ１６のベルト１２の回動速度を減速して停止位置における板状体１７の慣性を減衰させる場合には、前記検出器３６の手前位置に補正検出器３８を設置し、前記記憶器３２内に設けたこの補正検知器３８に対応する補正回路によって、伸縮コンベヤ１６のベルト回動用の原動機１３に減速指令を複数段階に発信して板状体１７の搬送途上の位置に見合った速度制御をしてもよい。
【図面の簡単な説明】
【図１】本発明の一実施例を示す平面図。
【図２】図１に示す実施例の側面図。
【図３】図１に示す実施例の作動状態の側面図。
【図４】本発明の他の実施例の作動説明図。
【図５】本発明の他の実施例の作動説明図。
【図６】本発明の他の実施例の作動説明図。
【図７】本発明の他の実施例の作動システムとその構成を示す説明図。
【図８】本発明の他の実施例の作動システムとその構成を示す説明図。
【図９】図７及び図８の作動部の平面図。
【図１０】他の堆積制御を示す説明図。
【図１１】拘束手段を示す側面図。
【図１２】押し下げ手段を示す側面図。
【図１３】他の押し下げ手段を示す側面図。
【図１４】規制手段を示す側面図。
【符号の説明】
１機枠
４，４０前部固定プーリ
５，５０後部固定プーリ、
６，６０移動部材
７，７７リニヤブロック
９，９０可動枠
１０前部可動プーリ
１１後部可動プーリ
１２コンベヤベルト
１３ベルト回動用の原動機
１６伸縮コンベヤ
１７板状体
２５中継コンベヤ
２７搬入コンベヤ
２８仕分け位置
２９仕分け信号
５１拘束手段
５２，５３挟持片
６１押し下げ手段
６５押し下げ体
７１規制手段
７４規制体[0001]
[Industrial applications]
The present invention relates to a method and an apparatus for dropping a plate-like body such as a veneer veneer, a plywood, a synthetic resin plate and the like conveyed on a conveyor at a high speed from a preceding step smoothly and accurately above a deposition position. It is about.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a conveyer that can expand and contract toward the upper side of a stacking position of a plate-like body is provided, and when the plate-like body is placed, the telescopic conveyor is extended, and the plate-like body is dropped to a stacking position when contracted. Methods are known.
[0003]
[Problems to be solved by the invention]
However, when the telescopic conveyor contracts from the stretched state and drops the plate to the stacking position, it may not be able to accurately accumulate at the stacking position due to the distance until the plate falls, the plate-like body soaring due to negative pressure, and the like. . For this reason, the state of deposition of the plate-like bodies varies, which results in an obstacle to the removal operation in the next step.
[0004]
Means for Solving the Problems and Effects of the Invention
In order to solve the above-mentioned problems, a method for depositing a plate-like body of the present invention
Above the stacking position of the plate-like body, with the plate-like body placed on the telescopic conveyor where the movable frame becomes movable with the high-speed rotation of the conveyor belt wound around the movable pulleys located at the front and rear parts The movable pulley located at the front of the telescopic conveyor moves counterclockwise by rapidly retracting the movable frame while restraining the plate-like body and maintaining the tension of the telescopic conveyor belt. The plate-like body is pulled out by rotating the plate-like body, and is deposited with a small drop error at the front and rear portions of the plate-like body.
[0005]
Further, in order to solve the above-mentioned problems, the method for depositing a plate-like body of the present invention includes
The movable frame that expands and contracts above the stacking position of the plate-like body is provided with a movable pulley at the front thereof, and another movable frame is independently provided below the movable frame that expands and contracts in the front-rear direction. The moving dimension of the movable frame supporting the rear movable pulley corresponding to the body transport direction is smaller than the operating dimension of the movable frame, and the rear movable pulley is disposed on the movable frame, and the conveyor belt wound around both movable pulleys rotates at a high speed. The movable frame that expands and contracts in the front-rear direction constitutes a telescopic conveyor. When the plate-like body conveyed on the telescopic conveyor stops while decelerating just above the stacking position, it temporarily restrains the plate-like body and forms a belt. While maintaining the tensioned state, the movable frame on which the rear movable pulley is disposed is rapidly extended, and the movable frame on which the movable pulley is disposed is rapidly retracted, so that the drop error of the front and rear portions of the plate-like body is reduced and accumulated. Features .
[0006]
The telescopic conveyor is capable of extending and contracting to a stacking position of the plate-like body by using a pair of machine frames installed on the left and right sides in the conveying direction of the plate-like body. That is, a slide rail or a linear way is laid on the upper surface of the machine frame, and a linear block is mounted on each moving member. The movable frame is cantilevered by connecting the front and rear portions of the linear block. The plate-like body conveying surface of the telescopic conveyor may be arranged in a substantially horizontal state to move forward and backward. However, it is preferable that the plate-like body is installed at a downward slope toward the direction of the stacking position of the plate-like body. If the plate-like body conveying surface of the telescopic conveyor is inclined downward in the conveying direction as described above, the movable frame portion is separated from the stacking position of the plate-like body by a raising angle corresponding to the gradient when the telescopic conveyor retreats. . Therefore, even if the plate-like body immediately after deposition is soared by negative pressure, bent, twisted, warped, and particularly upwardly warped, contact between the rear end portion of the plate-shaped body and the retractable telescopic conveyor is avoided. You. For this reason, it is possible to make the upper surface on which the plate-shaped material is deposited as close as possible to the conveying surface of the telescopic conveyor, and to shorten the deposition cycle by reducing the falling distance of the plate-shaped material.
[0007]
The plate-like body may be transferred manually onto the telescopic conveyor, but is usually transferred from the preceding step via, for example, a relay conveyor. Next, when the pair of left and right belt conveyors is rotated at a high speed, the plate is transported forward. That is, when the movable frame is advanced from the retreat position to the moving member laid on the machine frame via the linear block, the front and rear movable pulleys supported in a pair of front and rear maintain the distance, and Moves rapidly while maintaining tension. Then, the movable frame is stopped while decelerating above the stacking position of the plate-shaped body, that is, just before reaching the forward limit position of the telescopic conveyor. At this time, the front of the plate-like body placed on the telescopic conveyor is restrained by the restraining body, and the movement in the transport direction is prohibited. The portion to be constrained may be a single portion at the front end of the plate-like body or a plurality of portions at arbitrary intervals in a direction intersecting the transport direction. This restraining body is preferably in a state of being sandwiched from the thickness direction of the plate-shaped body, that is, from above and below.
[0008]
Further, when the pair of left and right belt conveyors is reversely rotated from the forward limit position of the telescopic conveyor to retreat the movable frame from the forward limit position onto the moving member via the linear block, only the plate-like body restrains the front end. Then, it stops at the current position. When the plate-like body is pulled out of the telescopic conveyor with the retreat of the telescopic conveyor, the front end of the plate-like body can be restrained. With this configuration, the plate-like body can be accurately deposited at the stacking position of the plate-like body without accompanying the retraction of the telescopic conveyor.
[0009]
In order to solve the above-described problems, the configuration of the plate-like body deposition apparatus of the present invention includes:
A pair of fixed pulleys are supported at regular intervals before and after the machine frame, and the upper portion of the machine frame is used as a guide, and the plate-like body While supporting a pair of front and rear movable pulleys at a set length, the belt is folded between each pulley and wound endlessly to form a telescopic conveyor, which is placed on the telescopic conveyor and transported to a stacking position. At least a restraining body for restraining the plate-like body and stopping at the current position is provided.
[0010]
Further, in order to solve the above problems, the configuration of the plate-like body deposition apparatus of the present invention,
A pair of fixed pulleys are supported at regular intervals before and after the machine frame, and a movable frame is provided that can move forward and backward with respect to the stacking position of the plate-shaped body located in front by using the upper part of the machine frame as a guide. A front movable pulley is supported at the tip, and another independent movable frame different from this movable frame is provided below the movable frame in which the front movable pulley is arranged, and a rear movable pulley is supported. The movable frame supporting the front movable pulley advances and retreats when the movable frame supporting the rear movable pulley advances and retreats, and the plate-like body is deposited. , And at least a restraining body that restrains the plate-like body placed on the telescopic conveyor and conveyed to the stacking position and stops at the current position is provided. .
[0011]
The telescopic conveyor supports a pair of fixed pulleys at regular intervals before and after the machine frame, and with the upper portion of the machine frame as a guide, a movable frame that can move forward and backward with respect to the stacking position of the plate-shaped body located in front. A pair of front and rear movable pulleys are supported with at least the length of the plate-like body to be deposited, and the belt is folded endlessly between the respective pulleys.
[0012]
The machine frames constituting this telescopic conveyor are installed on both sides of the plate-like body in the conveying direction, and have a rail running surface on the upper surface via a moving member. The frame may be installed in a substantially horizontal state to move forward and backward, but is preferably installed at a downward slope toward the direction of the stacking position of the plate. If the plate-like body conveying surface of the telescopic conveyor is inclined downward in the conveying direction as described above, the movable frame portion is separated from the stacking position of the plate-like body by a raising angle corresponding to the gradient when the telescopic conveyor retreats. .
[0013]
At a position corresponding to the advance limit of the telescopic conveyor, a restraining means for restraining the front end portion of the plate-like body is provided. One or a plurality of the restraining means are arranged at a substantially central portion within a space between the machine frames extending in a pair on the left and right with respect to the transport direction or at an arbitrary interval in a direction intersecting the transport direction. For example, this restraining means is configured such that the base ends of a pair of upper and lower holding pieces are pivotably attached to a holding fluid cylinder. The pair of upper and lower holding pieces are formed in a leaf spring shape so as to increase the holding force, and hold the front end portion of the plate-like body located at a substantially central portion in a direction intersecting with the transport direction so as to sandwich it from above and below. The nipping movement restrains the plate-like body, thereby prohibiting movement of the telescopic conveyor in the transport direction accompanying the retreating movement.
[0014]
In addition, in order to drop and deposit the plate-like body, in addition to falling by its own weight, the front end portion may be forcibly pushed down. In order to push down this plate-like body to its stacking position, it is sufficient to move the pair of upper and lower holding pieces that restrain the front end in the vertical direction, but the following configuration is also possible. That is, at both ends of a pair of upper and lower holding pieces, a pushing-down means which can be moved up and down with respect to the front end of the plate-like body and which can move up and down is installed. Can be pushed down to the stacking position.
[0015]
More specifically, the pressing means attaches a fluid cylinder for vertical movement to a guide body installed in the vertical direction, and is connected to the piston rod. Then, the supply and discharge of the fluid to and from the cylinder chamber allow the push-down body to move up and down along the guide body. On the other hand, this push-down body is attached to the piston rod of the fluid cylinder for projecting and retracting, and can be projected and retracted in the direction of the stacking position. It will be retracted from the front end. In addition to the above-described fluid movement, the push-down body and the vertical movement of the push-down body are crank movements, or a pinion gear is meshed with a rack gear laid vertically, and the push-down body attached to the pinion gear is rotated by rotating the pinion gear. It is also possible to move up and down as well as move up and down.
[0016]
Further, in order to push down the front end of the plate-like body, it is also possible to use not only the above-mentioned protruding / retracting movement and the vertical movement, but also a turning movement which is a trajectory obtained by combining these. That is, the base near the base end of the push-down body is pivotally supported at a predetermined interval on the extension of the plate-like body in the transport direction, and the distal end side is a free end, and the shaft portion is rotated at least a certain angle. With the rotation of the shaft, the push-down body at the distal end side is swung to intervene above the plate-like body, and then the front end portion is pushed down. In this case, the distal end side of the push-down body draws an arc-shaped trajectory, but the distance to push down the plate-like body is limited to the lifting platform, and an area close to a substantially linear area can be obtained. .
[0017]
In some cases, a regulating means is provided at the front of the stacking position of the plate-like body so as to be able to move forward and backward with respect to the stacking position at a distance in front of the transport direction of the stacking position. For example, it is also possible to attach the restrictor to the piston rod of the fluid cylinder for the restrictor, and align the plate-like body on which the restrictor is deposited and / or the front end of the plate-like body to be deposited by supply and discharge of fluid. is there.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, one embodiment of the telescopic conveyor used in the method of the present invention will be described.
A pair of shafts 2 and 3 are supported on the front and rear of the machine frame 1 at right angles to the transport direction, and front and rear fixed pulleys 4 and 5 are fixed to both ends of each shaft portion. A moving member 6 such as a slide rail or a linear way as shown is laid on the upper surface of the machine frame 1, and linear blocks 7 moving on the moving members 6 are arranged at arbitrary intervals in the front and rear. The front part and the rear part of the linear block 7 are connected to each other via a connecting beam 8, and a rear part of a movable frame 9 is attached to the front and rear connecting beams 8, and the movable frame 9 is in a cantilevered state. It can move back and forth along the moving member 6 as it is.
[0019]
A front movable pulley 10 is supported at the front of the pair of movable frames 9, and a rear movable pulley 11 is provided at a lower rear portion of the front movable pulley 10 at a certain distance from the front movable pulley 10. It is rotatably supported. The front and rear movable pulleys 10 and 11 are interposed between the fixed pulleys 4 and 5, that is, from the rear fixed pulley 5 of the machine frame 1 to the front movable pulley 10 of the movable frame 9 and the rear movable of the movable frame 9. The pulley 11 is sequentially turned back to the front fixed pulley 4 of the machine frame 1, and the belt 12 is endlessly mounted on the rear fixed pulley 5 of the machine frame 1, and is tensioned via a balance weight, a tynar pulley, etc. (not shown). The conveyor 17 is conveyed by being wound around the plate-shaped member 17.
[0020]
The rear shaft 3 around which the belt 12 is wound is connected to a motor 13 for rotating the belt via a chain wheel, and the driving, deceleration, and stop of the belt 12 are controlled by the control of the motor 13 for rotating the belt. . Further, a drive shaft 14 driven by a movable frame advance / retreat motor 15 is provided before and after the machine frame 1, and the movable frame 9 is attached to a chain wheel that links the front and rear drive shafts 14. An advance / retreat motor 15 rotates a rear drive shaft 14 via a chain wheel to control the advance / retreat of the movable frame 9 along the moving member 6. Further, in front of the machine frame 1, below the forward limit position of the movable frame 9, an elevating table 18 constituting a stacking position of the plate 17 for stacking the plate 17 on a pallet is installed. The elevator 18 is provided with a detector for detecting the height of the upper surface of the accumulated plate 17, and the elevator is moved so that the upper surface of the accumulated plate 17 is always constant by a signal from the detector. 18 is height-controlled. Since the movable frame 9 in FIGS. 1 to 3 has a cantilever shape, there is no limitation on the length of the plate-like body 17 transported on the conveyor in a direction perpendicular to the transport direction.
[0021]
When the prime mover 15 for moving the movable frame is driven, the movable frame 9 located at the retreat limit moves forward on the movable member 6 via the linear block 7 while maintaining the cantilever state. Then, the front and rear movable pulleys 10 and 11 supported as a pair front and rear maintain the distance L and move forward rapidly in the horizontal plane while maintaining the tension state of the belt 12. When the motor 15 for moving the movable frame forward and backward is driven in the reverse direction from this state, the movable frame 9 located at the end of forward movement rapidly moves backward, so that the telescopic conveyor moves forward and backward above the stacking position of the plate-like body 17. 16 can be configured. Then, the plate-like body 17 conveyed on the telescopic conveyor 16 is dropped and deposited on the lower stacking position of the plate-like body 17 as the telescopic conveyor 16 advances and retreats.
[0022]
At a position corresponding to the advance limit of the telescopic conveyor 16, a restraining means 51 for restraining a front end portion of the plate 17 to be conveyed is provided. One or a plurality of the restraining means 51 are disposed at substantially the center of the space between the machine frames 1 extending in the left and right pairs in the transport direction or at an arbitrary interval in a direction intersecting the transport direction. In FIG. 1, one restraining means 51 is provided at a central portion within the interval, and as shown in FIG. 11 in detail, base ends 54, 55 of a pair of upper and lower sandwiching pieces 52, 53 are fluids for sandwiching. Each is pivotably attached to the cylinder 56. The pair of upper and lower holding pieces 52 and 53 are in the form of a leaf spring in order to increase the holding force, and when the fluid cylinder 56 is operated, the front end portion of the plate-like body 17 located at a substantially central portion in a direction intersecting the transport direction is formed. The pair of holding pieces 52 and 53 are sandwiched from above and below, and the holding operation restricts the plate-like body 17 to prohibit movement of the telescopic conveyor 16 in the return direction accompanying the retreating movement.
[0023]
Further, in order to drop and deposit the plate-like body 17, besides dropping by its own weight, the front end portion may be forcibly pushed down. In order to push down the plate-like body 17 to the elevating table 18, it is sufficient to move the pair of upper and lower sandwiching pieces 52, 53 restraining the front end in the vertical direction, but the following configuration is also possible. It is. As shown in FIG. 1, a push-down means 61 capable of moving up and down with respect to the front end of the plate-like body 17 and capable of moving up and down is provided at both ends of a pair of upper and lower sandwiching pieces 52 and 53, and the push-down means 61 is provided as a plate. The plate 17 can be pressed down to the lifting table 18 of the plate 17 by contacting the front end of the plate 17.
[0024]
Specifically, as shown in FIG. 12, this pushing-down means 61 has a fluid cylinder 63 for vertical movement mounted on a guide body 62 installed vertically, and a pushing-down body 65 is connected to a piston rod 64 thereof. The push-down body 65 can be moved up and down along the guide body 62 by supplying and discharging the fluid to and from the cylinder chamber. On the other hand, the push-down body 65 is attached to the tip of the piston rod 64 and is attached to a piston rod 67 of a fluid cylinder 66 for retreating which moves up and down, and is capable of protruding and retracting above the elevating table 18. Then, it reaches above the front end of the plate-like body 17 when it protrudes, and retreats from the front end of the plate-like body 17 when it immerses. In addition to the above-described fluid motion, the push-down body 65 is moved up and down and moved up and down by cranking, or a pinion gear is meshed with a rack gear laid vertically, and the push-down body attached to the pinion gear by rotating the pinion gear. It is also possible to move 65 up and down and up and down. Then, while the telescopic conveyor 16 is retracted, the push-down body 65 advances above the plate-like body 17, and the push-down body 65 of the push-down means 61 descends while opening the holding pieces 52, 53. Can be correctly dropped on the elevating table 18 which is the deposition position.
[0025]
Further, as shown in FIG. 13, in order to push down the front end of the plate-like body 17, in addition to the above-described protruding and retracting movements and the up-and-down movements, it is also possible to perform a turning movement having a combined locus. That is, the shaft 68 is provided on an extension of the plate-like body 17 in the transport direction, and the pressing body 65 attached to the shaft 68 can rotate at least a certain angle around the shaft 68 portion. Then, after the distal end side of the push-down body 65 is positioned above the plate-like body 17, when the push-down body 65 is rotated by a fluid cylinder or the like, the front end portion of the push-down body 65 is pushed down, and the plate-like body 17 moves up and down. It can fall and deposit on the table 18. In this case, the distal end side of the push-down body 65 that pushes down the plate-like body 17 draws an arc-shaped trajectory, but the distance that the plate-like body 17 is pushed down also depends on the plate-like body 17 deposited on the lifting table 18. It is limited to the upper surface, and the arc-shaped trajectory is a trajectory substantially close to a linear region.
[0026]
In addition, at the front of the lift 18 of the plate 17, there may be provided a regulating means 71 which is separated from the front of the lift 18 in the transport direction and is capable of moving forward and backward with respect to the lift 18. . For example, as shown in FIG. 14, a plate-shaped regulating body 74 is attached to the tip of a piston rod 73 of a fluid cylinder 72, and the accumulated plate-like body 17 and / or the accumulated The regulating body 74 is pressed against the front end portion of the plate-like body 17 in the middle, and the plate-like body 17 can be aligned and stacked.
[0027]
As shown in FIG. 3, when the motor 13 for rotating the belt is driven in a state where the telescopic conveyor 16 is held in the extended position, the plate 17 is transported on the telescopic conveyor and reaches above the stacking position. Then, the motor 13 for rotating the belt is stopped, the rotation of the belt 12 of the telescopic conveyor 16 is stopped, and then the motor 15 for moving the movable frame forward and backward is moved to the forward limit, which is a component part of the telescopic conveyor 16. The movable frame 9 moves backward on the moving member 6 via the linear block 7. At this time, before being supported by the front and rear pair of the movable frame 9, the rear movable pulleys 10, 11 are retracted rapidly while maintaining the interval L and the tension state of the belt 12, and move upwardly from the lift table 18. , Thereby retracting the telescopic conveyor 16 to the retracted position.
[0028]
On the other hand, at the position where the front end portion of the plate-like body 17 protrudes with the movement of the telescopic conveyor 16 to the retracted position, the fluid cylinder 56 for holding the plate-like body 17 was operated, and the plate-like body 17 was on the telescopic conveyor 16. A substantially central portion of the front end portion of the plate-like body 17 is sandwiched and restrained by a pair of sandwiching pieces 52 and 53 from above and below, and the plate-like body 17 is held at the restrained position by the sandwiching pieces 52 and 53. Further, in synchronization with this, the push-down body 65 which comes and goes by the fluid cylinder 66 is projected above the front end portion of the plate-like body 17. Thereafter, when the telescopic conveyor 16 reaches the retracted position, the pressing means 61 is disposed at two places in the embodiment of FIG. Are pushed down, and the plate-like body 17 is deposited on the lift table 18. By actuating the fluid cylinder 72 of the regulating means 71 for the plate 17 deposited on the lift 18, the plate 17 is being deposited on the lift 18 or on the lift 18. After being deposited on the elevator 18, the regulating body 74 advances toward the elevator 18 to align the front ends of the plate-like bodies 17 deposited on the elevator 18.
[0029]
Thereafter, when the fluid cylinder 72 of the restricting means 71 is reversely operated to return the restricting body 74 to the old position, and when the fluid cylinder 56 of the restraining means 51 is reversely operated, the pair of holding pieces 52 and 53 are pivoted to turn the plate. The front end portion of the body 17 is opened, and the fluid cylinder 63 for vertically moving the pushing-down means 61 and the fluid cylinder 66 for projecting / retracting are reversely operated to return the pushing-down body 65 to the current position. The regulating means 71, the restraining means 51, and the pushing-down means 61 are retracted from the plate-like body 17 deposited on the elevating platform 18 and / or the front end portion of the plate-like body 17 deposited.
Further, the rear portion of the telescopic conveyor 16 reaching the retreat position is connected to a relay conveyor 25 to which the next plate 17 is transported, and transports the next plate 17 transported from the relay 25. When the prime mover 15 for moving the movable frame forward and backward is activated, the movable pulleys 10 and 11 in front of the movable frame 9 maintain the tension of the belt 12 and the plate-like body 17 while maintaining the distance L therebetween. Is rotated in the direction opposite to the direction of the transfer, and the front portion of the movable frame 9 is advanced above the elevating table 18. Then, the next plate-like body 17 conveyed on the relay conveyor 25 is placed on an extended conveyer 16 which is rotated by a motor 13 for rotating the belt, and is conveyed above an elevator 18.
[0030]
Thereafter, by repeating the above operation, the plate-like bodies 17 conveyed from the previous step by the relay conveyor 25 are conveyed at high speed on the telescopic conveyor 16 and sequentially deposited on the elevating table 18 from above the elevating table 18. At this time, the detector is activated in accordance with the amount of the plate-like body 17 deposited on the elevating platform 18, and the elevating platform 18 descends while maintaining an arbitrary interval with the telescopic conveyor 16 at the forward limit position. Will be.
[0031]
The interval L of movement of the movable frame 9 by moving forward and backward is set based on the length of the plate-like body 17 deposited on the elevating table 18 in the transport direction. In the embodiment shown in FIGS. The size of the movable frame 9 is equal to the distance between the rear movable pulleys 10 and 11 before and after being supported in the horizontal plane before and after the cantilever movable frame 9, but as in this embodiment, the movable frame 9 has a linear block at the rear. The linear block 7 is not limited to the cantilever shape with the attached 7, but may be attached to the front and rear of the movable frame 9 so as to be movable on the movable member 6. In this case, it is necessary to lay the moving member 6 up to the stacking position, which is the forward limit position of the movable frame 9, and the length of the plate-like body 17 orthogonal to the transport direction is limited to the interval between the moving members 6 facing each other. Will be.
As shown in FIG. 4, a plurality of pairs of front fixed pulleys 40 and rear movable pulleys 50 are installed at arbitrary intervals in the vertical direction while being folded back in multiple stages, so that the front and rear fixed pulleys are fixed to the machine frame 1. The distance between the pulleys 40 and 50 can be reduced, and the installation area can be reduced. As in the embodiment of FIG. 4, if the front fixed pulley 40, the rear fixed pulley 50, the front movable pulley 100, and the rear movable pulley 111 are paired, the moving distance L of the front movable pulley 100 can be reduced. The moving interval of the rear movable pulley 111 in the horizontal plane is L / 2.
[0032]
In FIG. 5, the moving distance L of the movable frame 9 moving forward and backward in the horizontal direction is replaced in the up and down direction, and the movable frame 9 moves in the horizontal direction and the movable frame 9 moves in the horizontal direction. A vertical movable frame 90 that replaces the distance L in which the frame 9 moves forward and backward in the vertical direction. That is, a moving member 60 such as a slide rail or a linear way is laid in the vertical direction of the machine frame 1, and linear blocks 77 that move on the moving member 60 are arranged at arbitrary intervals in the vertical direction. A vertical movable frame 90 is mounted, and the linear block 77 and the vertical movable frame 90 are attached so as to be positioned below the front and rear fixed pulleys 40 and 50. A front movable pulley 100 is provided at a front portion of the movable frame 9 and a rear movable pulley 111 is provided at a lower portion of the vertical movable frame 90, and the vertical movable frame 90 is at the upper limit position at the horizontal forward limit position of the movable frame 9. In addition, if the vertical movable frame 90 is controlled to reach the lower limit position at the horizontal retreat limit position of the movable frame 9, the installation area of the telescopic conveyor 16 and the machine frame 1 can be greatly reduced. .
[0033]
Further, what is shown in FIG. 6 is one in which a plurality of pairs of rear movable pulleys 111 which advance and retreat in the vertical direction are installed at a given interval in the front-rear direction while being folded back in multiple stages. The moving distance in the vertical direction of the rear movable pulley 111 installed on the vertical movable frame 90 can be made smaller than the moving distance L of the front movable pulley 100 of the movable frame 9 in the vertical direction. Reduction is also possible. If the front fixed pulley 40, the rear fixed pulley 50, the front movable pulley 100, and the rear movable pulley 111 are two pairs as in the embodiment of FIG. 6, the moving distance L of the front movable pulley 100 in the horizontal direction can be reduced. On the other hand, the vertical movement interval of the rear movable pulley 111 is L / 2.
[0034]
As described above, the upper part of the machine frame 1 on which the telescopic conveyor 16 is disposed may be installed in a substantially horizontal state so that the telescopic conveyor 16 moves forward and backward, but as shown in FIG. The telescopic conveyor 16 may be installed at a downward gradient toward the direction of the stacking position. If the machine frame 1 of the telescopic conveyor 16 is inclined downward in the transport direction in this way, when the telescopic conveyor 16 retreats, the movable frame 9 is separated from the stacking position of the plate-like body 17 by a raising angle corresponding to the gradient. In addition, in the forward position, the accumulated plate-like body 17 and the front portion of the telescopic conveyor 16 can be brought close to each other. Therefore, even if the plate-like body 17 immediately after deposition is sowed by the negative pressure while the telescopic conveyor 16 is retreating, and the plate-like body 17 is bent, twisted, or warped, particularly if the plate-like body 17 is upwardly warped, etc. Contact between the end portion and the retractable telescopic conveyor 16 is avoided.
[0035]
FIGS. 7 and 8 show an embodiment in which a plurality of the telescopic conveyors 16 are arranged in series in the transport direction, and an elevator 18 which constitutes a stacking position of the plate 17 is arranged therebetween. The sorting position is determined according to the grade, type, quality, and the like of the plate 17 to be delivered, and the plate 17 is sorted and deposited on the designated lift 18. The telescopic conveyor 16 in the illustrated example is composed of three, and for convenience, a method is used in which the telescopic conveyor 16 expands and contracts in the horizontal direction via a vertical movable frame 90 that moves in the vertical direction of the machine frame 1 shown in FIG. The three elevating tables 18 where the plate-like bodies 17 are deposited are provided. Further, when there is a clearance between the forward limit position of the movable frame 9 of the telescopic conveyor 16 located at the subsequent stage and the rear fixed pulley 5 located at the front of the telescopic conveyor 16, the relay conveyor 25 that performs delivery within the clearance is provided. It is conveyed on the telescopic conveyor 16 as a position where the movable frame 9 of the telescopic conveyor 16 installed or located rearward is slightly intruded into the rear fixed pulley 5 of the telescopic conveyor 16 located in front of the telescopic conveyor 16. The plate-like body 17 is intended to transfer to the front telescopic conveyor 16.
[0036]
In the illustrated example, there is a clearance between the operating position of the movable frame 9 of the telescopic conveyor 16 located at the rear and the rear fixed pulley 5 of the telescopic conveyor 16 located at the front of the movable frame 9. This clearance is as described above. A relay conveyor 25 is interposed. The relay conveyor 25 has the same conveyance surface as the telescopic conveyor 16 located at the rear, and the plate 17 can be smoothly transferred to the relay conveyor 25 from the telescopic conveyor 16 positioned at the subsequent stage. In addition, the rear portion is positioned at least in front of the position where the telescopic conveyor 16 located at the rear position deposits the plate-like members 17, so that the plate-like members 17 are placed on the elevator 18 without being interrupted by the relay conveyor 25. It can be deposited. The front position of the relay conveyor 25 is set to a position that does not interfere at least when the movable frame 9 of the telescopic conveyor 16 located in front is operated. In the illustrated example, the transport surface of the telescopic conveyor 16 located forward is set slightly lower than the transport surface of the relay conveyor 25. For this reason, the plate-shaped body 17 can shorten the forward conveyance distance without being affected by the operation state of the telescopic conveyor 16 located in the front. When three telescopic conveyors 16 are installed in series in the transport direction as in the embodiment, the transport surface of the plate-shaped body 17 is set low in three stages.
[0037]
In the illustrated example, a carry-in conveyor 27 is provided at the rear end position of the telescopic conveyor 16 located at the rearmost position, similarly to the relay conveyor 25. The carry-in conveyor 27 is driven through a continuously variable transmission 26, and the speed of the carry-in conveyor 27 is changed by the continuously variable transmission 26 so that the plate-like body 17 conveyed from the preceding process is finally finished at an appropriate timing. Can be placed on the telescopic conveyor 16 located in the section. The loading conveyor 27 is provided with a sorting position 28 for the plate 17 to be conveyed. At the sorting position 28, the sorting of the plate 17 conveyed from the preceding step is artificially determined or the plate 17 is discarded. A detector for detecting the grade, properties, and defects of the body 17 is provided. In the embodiment, a sorting signal 29 for sorting and depositing the plate-like body 17 on one of the three elevating tables 18 is transmitted. In order to eliminate the clearance between the carry-in conveyor 27 and the start position of the telescopic conveyor 16 located at the rearmost part, the leading end of the carry-in conveyor 27 is slightly inserted into the rear fixed pulley 5 of the telescopic conveyor 16. Alternatively, a relay conveyor 25 may be interposed between the carry-in conveyor 27 and the starting position of the telescopic conveyor 16. Further, instead of the carry-in conveyor, the relay conveyor 25 itself may function as the carry-in conveyor 27.
[0038]
At the sorting position of the carry-in conveyor, as a control system for sorting and depositing the plate-like bodies 17 determined to be sorted on the elevators 18, the elevators 18 set to sort and deposit from the sorting position 28 on the carry-in conveyor 27 are used. Is set as a predetermined distance, and when the predetermined distance is measured, the operating system of the telescopic conveyor 16 is controlled or the discriminated lifting and lowering of the plate 17 is determined. The operating system of the telescopic conveyor 16 is controlled by providing a detecting means for detecting when the vehicle reaches the table 18.
[0039]
Specifically, according to the former control system shown in FIG. 7, the sorting signal 29 at the sorting position 28 on the carry-in conveyor 27 is linked to the distance setting device 31 and the plate-like body 17 conveyed from the sorting position 28 is The distances S1, S2, and S3 to the stacking position are converted into a pulse amount in which a predetermined moving distance of the plate 17 in the telescopic conveyor 16 is set as one pulse, and stored corresponding to each plate 17 to be conveyed. The data is output to the storage device 32 provided with the element and stored in the storage element. In addition, the continuously variable transmission 26 of the carry-in conveyor 27 is linked with a pulse transmitter 30 that transmits a pulse amount in which the predetermined movement distance of the plate-like body 17 is one pulse as the carry-in conveyor 27 rotates. The pulse transmitter 30 is connected to the distance setting device 31, and the movement pulse amount of the plate 17 on the carry-in conveyor 27 is output to the storage device 32 via the distance setting device 31. The storage unit 32 is connected in series with the motor 13 for rotating the belt, which is the operating system of the telescopic conveyor 16, and the motor 15 for moving the movable frame forward and backward, and controls them.
[0040]
According to this control circuit, the sorting signal 29 of the plate 17 at the sorting position 28 on the carry-in conveyor 27 is converted into a pulse amount and stored in the storage unit 32 from the distance setting unit 31. The sum of the moving pulse amount on the carry-in conveyor 27, which is a variable speed of the body 17, and the moving pulse amount on the telescopic conveyor 16 sent at a constant speed is the distance to the deposition position stored in the storage element 28. When each storage element in the unit 32 counts up, the storage unit 32 stops the prime mover 13 for rotating the belt of the telescopic conveyor 16, resets the storage element, and starts the prime mover 15 for moving the movable frame forward and backward. Then, the movable frame 9 located at the forward limit is retracted, and the plate-like body 17 is deposited on the elevator 18 at the set deposition position, which is the sorting position of the carry-in conveyor 16. In addition, on the telescopic conveyor 16 on which the plate-like members 17 are sorted and deposited, control is performed so as to reduce the rotational speed of the belt 12 of the telescopic conveyor 16 just before stopping to attenuate the inertia of the plate-like member 17 at the stop position. A correction setting device 33 is connected to the distance setting device 31 in the circuit, and when the integrated pulse amount approaches count-up, the correction setting device 33 issues a deceleration command to the motor 13 for rotating the belt of the telescopic conveyor 16. May be transmitted in a plurality of stages to perform speed control corresponding to the position of the plate-like body 17 in the middle of conveyance.
[0041]
As shown in FIG. 8, the latter control system includes, as shown in FIG. 8, a counter 34 for detecting the order of conveyance every time the plate-like body 17 sorted and determined at the sorting position 28 of the carry-in conveyor 27 passes. The sorting signal 29 for specifying the stacking position of the plate 17 transmitted from the sorting position 28 of the carry-in conveyor 27 is stored in synchronization with the detection signal 35 of the plate 17 from the counter 34. Is output to each storage element in the device 32. On the other hand, a detector 36 such as a photoelectric tube and a limit switch for detecting the front end of the plate 17 conveyed on the telescopic conveyor 16 in the extended state is provided above the lift 18 installed at each deposition position of the plate 17. The output of the detector 36 is connected to the storage device 32, and the detection output of the plate-like body 17 conveyed on the telescopic conveyor 16 by the detector 36 is output to the storage device 32. The storage unit 32 is based on the stored sorting data, the data stored by the counter 34 for specifying the conveyed plate 17, and the detection output of the plate conveyed on the telescopic conveyor 16 from the detector 32. Then, when the plate-like body 17 is conveyed to the sorting position 28 and reaches the determined elevating platform 18 to be sorted, the operating system of the telescopic conveyor 16 is controlled.
[0042]
That is, if the plate-like body 17 determined at the sorting position 28 is deposited on the third elevating platform 18 at the forefront, the detectors 36 installed in the first and second units are used. Even if the plate-like body 17 can be detected on the telescopic conveyor 16, an output prohibition signal 37 for the operating system of the telescopic conveyor 16 is transmitted from the storage element in the storage device 32 based on the stored data from the counter 34. Thus, the plate-shaped body 17 passes over the belts 12 of the first and second telescopic conveyors 16 which continue to rotate. When the detector 36 detects the plate-like body 17 on the belt 12 of the third telescopic conveyor 16, the memory 32 stores the motor 13 for rotating the belt of the third telescopic conveyor 16, similarly to the former control system. Is stopped, the storage element is reset, the movable frame advance / retreat motor 15 is started to move the movable frame 9 located at the forward limit, and the plate 17 is moved to the sorting position of the carry-in conveyor 27. It is to be deposited on the elevating table 18 at the set deposition position. Further, similarly to the former control system, the rotation speed of the belt 12 of the telescopic conveyor 16 near the stop is reduced on the telescopic conveyor 16 on which the plate-shaped body 17 is sorted and deposited, and the plate-shaped body 17 is stopped at the stop position. In order to attenuate the inertia, a correction detector 38 is installed at a position before the detector 36, and the belt rotation of the telescopic conveyor 16 is controlled by a correction circuit provided in the storage device 32 and corresponding to the correction detector 38. A deceleration command may be transmitted to the driving motor 13 in a plurality of stages to control the speed in accordance with the position of the plate 17 in the middle of conveyance.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the present invention.
FIG. 2 is a side view of the embodiment shown in FIG.
FIG. 3 is a side view of the embodiment shown in FIG. 1 in an operating state.
FIG. 4 is an operation explanatory view of another embodiment of the present invention.
FIG. 5 is an operation explanatory view of another embodiment of the present invention.
FIG. 6 is an operation explanatory view of another embodiment of the present invention.
FIG. 7 is an explanatory diagram showing an operation system and a configuration of another embodiment of the present invention.
FIG. 8 is an explanatory diagram showing an operation system and a configuration of another embodiment of the present invention.
FIG. 9 is a plan view of the operation unit of FIGS. 7 and 8;
FIG. 10 is an explanatory diagram showing another deposition control.
FIG. 11 is a side view showing the restraining means.
FIG. 12 is a side view showing a pressing means.
FIG. 13 is a side view showing another pressing means.
FIG. 14 is a side view showing a regulating unit.
[Explanation of symbols]
1 aircraft frame
4,40 Front fixed pulley
5,50 rear fixed pulley,
6,60 moving parts
7,77 linear block
9,90 movable frame
10 Front movable pulley
11 Rear movable pulley
12 Conveyor belt
13 Motor for belt rotation
16 Telescopic conveyor
17 Plate
25 Relay Conveyor
27 Loading conveyor
28 Sorting position
29 Sorting signal
51 Restraint means
52,53 clamping piece
61 Depressing means
65 Depressed body
71 Regulatory measures
74 Regulator

Claims

Above the stacking position of the plate-like body, with the plate-like body placed on the telescopic conveyor where the movable frame becomes movable with the high-speed rotation of the conveyor belt wound around the movable pulleys located at the front and rear parts The movable pulley located at the front of the telescopic conveyor moves counterclockwise by rapidly retracting the movable frame while restraining the plate-like body and holding the tensioned state of the telescopic conveyor belt. A method for depositing a plate-shaped body, comprising rotating the plate-shaped body, pulling out the plate-shaped body, and depositing the plate-shaped body with a small drop error at the front and rear portions of the plate-shaped body.

The movable frame that expands and contracts above the stacking position of the plate-like body is provided with a movable pulley at the front thereof, and another movable frame is independently provided below the movable frame that expands and contracts in the front-rear direction. The moving dimension of the movable frame supporting the rear movable pulley corresponding to the body transport direction is smaller than the operating dimension of the movable frame, and the rear movable pulley is disposed on the movable frame, and the conveyor belt wound around both movable pulleys rotates at a high speed. The movable frame that expands and contracts in the front-rear direction constitutes a telescopic conveyor. When the plate-like body conveyed on the telescopic conveyor stops while decelerating just above the stacking position, it temporarily restrains the plate-like body and While maintaining the tensioned state, the movable frame on which the rear movable pulley is disposed is rapidly extended, and the movable frame on which the movable pulley is disposed is rapidly retracted, so that the drop error of the front and rear portions of the plate-like body is deposited with a small amount. Features The method of depositing plate-like body.

The method according to claim 1 or 2, wherein the telescopic conveyor moves forward and backward in a substantially horizontal state to a position where the plate-like body is deposited.

3. The method according to claim 1, wherein the telescopic conveyor is installed at a downward gradient toward the direction of the stacking position of the plate, and moves forward and backward.

The telescopic conveyor stops while decelerating just before the upper position of the plate-like body, and the plate-like body placed on the telescopic conveyor is restrained at its front part and prohibited from moving in the transport direction. 5. The method for depositing a plate-like body according to any one of 4.

The plate-like body placed on the telescopic conveyor is restrained so that its front portion is sandwiched from above and below in a direction intersecting the conveyance direction, and is prohibited from moving in the conveyance direction. The method of depositing the plate.

7. The stacking of the plate-like body according to claim 1, wherein the plate-like body placed on the telescopic conveyor is restrained and prohibited from moving in the transport direction, and then pushed down to a stacking position of the plate-like body. Method.

8. The method for depositing a plate-shaped object according to claim 1, wherein the position of the plate-shaped object deposited at the deposition position is regulated so that the front end portion in the transport direction is aligned with the front end portion of the plate-shaped object being deposited. .

A pair of fixed pulleys are supported at regular intervals before and after the machine frame, and the upper portion of the machine frame is used as a guide, and the plate-like body While supporting a pair of front and rear movable pulleys at a set length, the belt is folded between each pulley and wound endlessly to form a telescopic conveyor, which is placed on the telescopic conveyor and conveyed to a stacking position. An apparatus for depositing a plate-like body, comprising at least a constraint body that restrains the plate-like body and stops at a current position.

A pair of fixed pulleys are supported at regular intervals before and after the machine frame, and a movable frame is provided that can move forward and backward with respect to the stacking position of the plate-shaped body located in front using the upper portion of the machine frame as a guide. The front movable pulley is supported at a position below the movable frame on which the front movable pulley is arranged, and another independent movable frame different from this movable frame is provided to support the rear movable pulley, and is movable with the fixed pulley. While the belt is folded between the pulleys and the pulleys, the belt is wound endlessly, and when the movable frame supporting the rear movable pulley is driven, the movable frame supporting the front movable pulley advances and retreats, and the plate-like body is moved to the stacking position. A plate comprising a telescopic conveyor for conveying upward, and at least a restricting body for restricting a plate-like body placed on the telescopic conveyor and conveyed to a stacking position and stopping at a current position. Deposit Location.

11. The telescopic conveyor according to claim 9, wherein a required dimension of a movable frame supporting a rear movable pulley corresponding to a conveying direction of the plate-shaped body is smaller than an operation dimension of a movable frame supporting a front movable pulley. 12. Plate-like deposition device.

The telescopic conveyor has a movable frame that supports the rear movable pulley in a vertical state, and the movable frame that supports the rear movable pulley corresponding to the transport direction of the plate-like body has a required dimension that supports the front movable pulley. The apparatus for depositing a plate-like body according to claim 9 or 10, wherein the apparatus is smaller than an operation dimension of the frame.

A pair of fixed pulleys are supported at regular intervals before and after the machine frame, and a relay conveyor connected to the fixed pulley supported at the rear is installed, and the relay conveyor draws out a plate-like body on the telescopic conveyor. An apparatus for depositing a plate-like body according to claim 9 or 10.

The telescopic conveyor is connected to a carry-in conveyor provided with a sorting position for transmitting a plate-like sorting signal, and a plurality of the telescopic conveyors are installed in series in the transport direction of the plate-like body via the relay conveyor. Item 14. An apparatus for depositing a plate-like body according to any one of Items 9 to 13.

The plate-shaped plate according to any one of claims 9 to 14, wherein the machine frame is installed in a substantially horizontal state on both sides of the plate-shaped body in the transport direction, and has a rail running surface of a telescopic conveyor via a moving member on an upper surface thereof. Body deposition equipment.

16. The machine frame according to any one of claims 9 to 15, wherein the machine frame is installed on both sides in the transport direction of the plate-like body at a downward gradient in the transport direction, and has a rail running surface of a telescopic conveyor via a moving member on an upper surface thereof. An apparatus for depositing the plate-like body according to the above.

The restraining means is disposed within the interval of the machine frame extending in the transport direction, and is restrained such that the front portion sandwiches the plate-like body placed on the telescopic conveyor from above and below at a position in a direction intersecting the transport direction. 17. The apparatus according to claim 9, wherein movement in the transport direction is prohibited.

The restraining means is disposed within the interval of the machine frame extending in the transport direction, and is restrained so that the front portion sandwiches the plate-like body placed on the telescopic conveyor from above and below at a position in a direction intersecting the transport direction. 17. The apparatus for depositing a plate-like body according to claim 9, wherein movement of the plate-like body in the transport direction is prohibited, and the plate-like body can be pushed downward while restraining a front portion of the plate-like body.

At a position near the restricting body, at least a pressing body interposed from above the front end portion of the constrained plate is installed, and the front end of the plate is pressed down in synchronization with the retreat timing of the movable frame. An apparatus for depositing a plate-like body according to any one of claims 9 to 17.

20. A regulating body for aligning a front end portion of a deposited plate and a newly deposited plate at a front portion of the deposition position of the plate is provided at least in any one of claims 9 to 19. For depositing plate-like objects.