JP2004142052A - Sheet feeder - Google Patents

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Publication number
JP2004142052A
JP2004142052A JP2002311113A JP2002311113A JP2004142052A JP 2004142052 A JP2004142052 A JP 2004142052A JP 2002311113 A JP2002311113 A JP 2002311113A JP 2002311113 A JP2002311113 A JP 2002311113A JP 2004142052 A JP2004142052 A JP 2004142052A
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Japan
Prior art keywords
cutter
cylinder
continuous paper
sheet
gas
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JP2002311113A
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Japanese (ja)
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JP3760383B2 (en
Inventor
Shinsuke Taira
平 新輔
Tsunetoshi Tejima
手島 恒利
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Tokyo Kikai Seisakusho Co Ltd
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Tokyo Kikai Seisakusho Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent a cut end of a continuous sheet from being wound into a cylinder for cutting. <P>SOLUTION: The sheet feeder conveys a sheet S cut on a cutter cylinder 4 and a cutter receiving cylinder 5 through a feed conveyor 6, and comprises at least one groove 51 moving around the periphery provided on this cutter receiving cylinder, a guide bar 1 guiding the continuous sheet on the side face of the cutter cylinder towards the feed conveyor, which is located approximately in parallel with the traveling direction of the continuous sheet W between the cutter torso and the cutter receiving cylinder and installed so as to pierce a virtual plane including both center lines of these cutter cylinder and cutter receiving cylinder inside the cutter receiving cylinder groove, and a gas blowing mechanism 3 installed so as to blow off gas from the continuous sheet feeding upstream side towards the spot between the continuous sheet traveling after being fed into the cutter cylinder side rather than the guide bar and the periphery of the cutter cylinder. The cut end of the cut continuous sheet is kept along the guide bar by utilizing the gas flow from the gas blow mechanism. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
この発明は、輪転機の印刷装置により印刷された連続紙をカッター胴、カッター受け胴の間に送り込み、紙幅と平行に切断し、所定寸法のシートにするシート出し装置に関し、詳細には、カッター受け胴側に、ガイドバーを設け、更に気体吹出し機構により、カッター胴とカッター受け胴との間に送り込まれる連続紙とカッター胴の外周面との間に向かって気体を吹き出し、この気体の流れにより、連続紙がカッター胴、カッター受け胴の間で切断されたときに、切断された連続紙の切断端部が、前記ガイドバーに沿って下流側へ案内されるようにすることにより、切断された連続紙がカッター胴又はカッター受け胴の外周面に巻き付くことを防止したシート出し装置に関する。
【0002】
【従来の技術】
走行する連続紙がカッター胴、カッター受け胴の間に送り込まれ、切断されたシート及び連続紙の切断端部を、下流側の搬送コンベヤーに安定して案内するように設けられたシート出し装置としては、特許文献1、特許文献2及び特許文献3に示されるものが公知である。
【0003】
この特許文献1に示されたシート出し装置は、上流より送り込まれる連続紙を互いの胴間で切断するカッター胴及びカッター受け胴と、切断されたシート及び連続紙の切断端部を下流方向に案内する連続紙の両面側に設けられたガイド手段と、ガイド手段で案内されながら連続紙から切断されたシートを更に下流側へ搬送する搬送コンベヤーとを備えている。
【0004】
カッター胴には、外周面に円周方向に所定の間隔で設けたカッター刃が設けられており、カッター受け胴には、カッター胴のカッター刃を受けるカッター受けが外周面に円周方向に所定の間隔で設けられている。
【0005】
また、ガイド手段は、連続紙の両面側に設けられ、カッター胴、カッター受け胴間の切断位置下流側のカッター胴及びカッター受け胴の外周面近傍から、適宜の間隔で対向して反対方向に回転するように搬送コンベヤーの入り口として設けられた1対のローラーの近傍まで連続している。
【0006】
また、搬送コンベヤーは、カッター胴とカッター受け胴にて連続紙から切断されたシートの両面側にそれぞれ独立して設けられ、入口側のローラーとその同じ側の下流のローラーとを無端ベルトで巻き渡し、かつ送り込まれた切断されたシートを両面より挟み込み搬送可能なように入口側のローラーより下流側の適宜の位置で互いに接している。
【0007】
そして、この構成によれば、連続紙は、カッター胴とカッター受け胴に送り込まれ切断される。切断位置下流側の切断されたシートは、搬送コンベヤーにより、シートの両面を無端ベルトで挟まれて下流側へ搬送される。また、切断位置上流側の連続紙は、カッター胴とカッター受け胴の対向部より下流側へ送り込まれるときに、走行速度による空気抵抗を受けても、切断端部にめくれや、角部の折れ曲がりが生じないようにガイドにより規制されて搬送コンベヤーに案内され、この切断端部が搬送コンベヤーの対向するベルトの互いに接触する位置近傍に達したときに、カッター胴、カッター受け胴間を通過中の部位がカッターとカッター受けの共同作用によって切断されてシートに形成され、シートの状態で搬送コンベヤーに挿入され、下流に搬送されて機外へ搬出される。
【0008】
また、特許文献2に示されたシート出し装置は、上流より送り込まれる連続紙を互いの胴間で切断するカッター胴及びカッター受け胴と、切断されたシート及び連続紙の切断端部を下流方向に案内する、切断位置より下流側のカッター胴及びカッター受け胴の外周面に接した状態でカッター胴及びカッター受け胴の回転とそれぞれ反対方向に回転可能に設けられた1対のブラシローラーと、この1対のブラシローラーの下流側に配され、ブラシローラーで案内されつつある連続紙が上流側のカッター胴とカッター受け胴との間で切断されて形成されたシートを更に下流側へ搬送する搬送コンベヤーとを備えている。
【0009】
カッター胴には、外周面に円周方向に所定の間隔で設けたカッター刃が設けられており、カッター受け胴には、カッター胴のカッター刃を受けるカッター受けが外周面に円周方向に所定の間隔で設けられている。
【0010】
また、ブラシローラーは、カッター胴、カッター受け胴間の連続紙の切断位置下流側の近傍で、カッター胴及びカッター受け胴の外周面に接し、接する胴と反対方向に回転可能に、軸方向に適宜間隔でブラシとプーリーを配設したローラーがそれぞれ1対設けられている。
【0011】
また、搬送コンベヤーは、シートの両面側にそれぞれ独立して設けられるブラシローラーのプーリーとその同じ側の下流のローラーとを無端ベルトで巻き渡し、かつ送り込まれた切断されたシートを両面より挟み込み搬送可能なようにブラシローラーより下流側の適宜の位置で互いに接している。
【0012】
そして、この構成によれば、連続紙は、カッター胴とカッター受け胴に送り込まれ切断される。切断位置下流側の切断されたシートは、搬送コンベヤーにより、シートの両面を無端ベルトで挟まれて下流へ搬送される。また、切断位置上流側の連続紙は、静電吸着がおこり、カッター胴又はカッター受け胴のいずれかの外周面に切断端部が吸着して巻き込まれたとしても、連続紙の切断端部が巻き込まれた側に設けられているブラシローラーのブラシにより、胴の外周面から連続紙の切断端部がかき取られ、搬送コンベヤーに案内される。案内された連続紙は、切断端部が搬送コンベヤーの対向するベルトの互いに接触する位置近傍に達したときに、カッター胴、カッター受け胴間を通過中の部位がカッターとカッター受けの共同作用によって切断されてシートに形成され、シートの状態で搬送コンベヤーに挿入され、下流に搬送されて機外へ搬出される。
【0013】
また、特許文献3に示されたシート出し装置は、上流より送り込まれる連続紙を互いの胴間で切断するカッター胴及びカッター受け胴と、カッター胴、カッター受け胴のそれぞれの周囲に、切断位置の上流から下流側にわたって連続紙を案内可能なように互いに接するように設けられた搬送手段とを備えている。
【0014】
カッター胴には、外周面に円周方向に所定の間隔で設けたカッター刃が設けられており、カッター受け胴には、カッター胴のカッター刃を受けるカッター受けが外周面に円周方向に所定の間隔で設けられている。
【0015】
また、搬送手段は、カッター胴のカッター及びカッター受け胴のカッター受けに当たらないように設けられ、カッター胴、カッター受け胴間の連続紙の切断位置の上流から下流側まで、互いに相対し、回転方向が反対になるように連続紙を挟み込むことが可能に1対の無端ベルト状になっている。
【0016】
そして、この構成によれば、連続紙は、搬送手段に挟み込まれて下流側へ案内され、カッター胴とカッター受け胴間において切断される。切断下流側の切断されたシートは、搬送手段に挟まれながら下流へ搬送される。また、切断位置上流側の連続紙も搬送手段に挟まれた状態で規制されて下流へ搬送され、適宜位置でカッター胴、カッター受け胴間を通過中の部位がカッターとカッター受けの共同作用によって切断されてシートに形成され、シートの状態で搬送手段に挟まれたまま下流に搬送されて機外へ搬出される。
【0017】
【特許文献1】
米国特許第5839365号明細書(第3〜5欄、Fig2)
【特許文献2】
特公平1−22120号公報(第1頁〜3頁、第2図)
【特許文献3】
特開平10−87162号公報(第5〜6頁、図5)
【0018】
【発明が解決しようとする課題】
前記特許文献1に示されたものでは、連続紙に静電気が帯電している場合には、切断された連続紙の切断端部が、カッター胴又はカッター受け胴のいずれかの外周面に吸着され、前記いずれかの胴とガイドとの間に連続紙の切断端部が入り込んで胴に巻き付き、紙詰まりを生じさせ、機械停止となった。更にガイドの破損につながった。
【0019】
また、特許文献2に示されたものでは、静電気によりカッター胴又はカッター受け胴に吸着された連続紙の切断端部をブラシローラーにより胴の外周面よりはがして搬送コンベヤーの入口側に送り込んだとしても、連続紙の切断端部は、切断位置から胴の外周面に沿って引き出されているのでブラシローラーの回転に従って一時的に上流側に戻されて搬送コンベヤーの入口側に入ることになり、上流からの送り込みに抗して戻されるときに連続紙が折れたり揉まれてくしゃくしゃになった状態で搬送コンベヤーに送り込まれる場合がありシートの生産物として不良となり、損紙となった。
【0020】
また、特許文献3に示されたものでは、カッター胴、カッター受け胴のそれぞれの周囲にカッター及びカッター受けに当たらないように搬送手段を設けているため大掛かりとなり、多くの部品を必要とする装置となり、コストが高くなり、また、カッター胴、カッター受け胴の周囲が紙幅より大きい幅で、無端ベルト状のものがおおっているのでメンテナンスが困難となった。
【0021】
この発明は、前記従来の技術がかかえていた課題を一挙に解決しようとするもので、シート出し装置のカッター胴、カッター受け胴間で切断された連続紙の切断端部が、切断後にいずれかの胴外周面に吸着されて巻き込まれるのを防止し、次の搬送装置にスムーズに運ばれるようにして、紙詰まりによる機械停止や周辺部品の破損を防止することを目的とし、また運ばれる状態をスムーズにして連続紙の切断端部に折れや不規則なしわが生じるのを防止し、損紙を低減することを目的としている。更に、機構を簡易な装置とし、コストダウンを図り、かつメンテナンスを容易にすることを目的としている。
【0022】
【課題を解決するための手段】
上記目的を達成するために、この発明の請求項1に記載のシート出し装置は、カッター刃を外周面に円周方向に所定の間隔で設けたカッター胴と、カッター刃を受けるカッター受けを外周面に円周方向に所定の間隔で設けたカッター受け胴とを、平行に近接させて設けるとともに、これら2つの胴の近接部より連続紙の走行方向下流側に搬送コンベヤーを設け、前記2つの胴の間を走行する少なくとも1枚の連続紙をカッター刃とカッター受けとの共同作用で紙幅方向と平行に切断して所定寸法のシートにし、このシートを搬送コンベヤーで搬送するシート出し装置において、カッター受け胴に設けたこの胴の外周面を周回する少なくとも1つの溝と、カッター胴とカッター受け胴間に連続紙の走行方向と略平行に配され、カッター胴の中心線とカッター受け胴の中心線とを含む仮想平面をカッター受け胴の溝内で貫くように設けられ、カッター胴側の側面にて連続紙を搬送コンベヤーへ向けてガイドするガイドバーと、カッター胴とカッター受け胴間でガイドバーよりもカッター胴側に送り込まれて走行する連続紙とカッター胴の外周面との間に向かって、連続紙送り込み上流側より気体を吹き出すように設けられた気体吹出し機構とを有し、気体吹出し機構により、前記両胴間に送り込まれる連続紙とカッター胴の外周面との間に、連続紙送り込み上流側より気体を吹き出し、この気体の流れにより、カッター刃とカッター受けとで切断された連続紙の切断端部を前記ガイドバーに従って走行方向に案内するようにした構成になっている。
【0023】
そしてこのシート出し装置において、気体吹出し機構を、連続紙の紙幅方向の全域にわたり略均一に気体が吹き出されるように設け、あるいは/及び気体吹出し機構に、気体吹出し量を調整可能な気体吹出し量調整手段を設けた構成になっている。
【0024】
【作 用】
上記構成において、カッター胴とカッター受け胴との間に送り込まれた連続紙は、カッター胴に設けたカッターとカッター受け胴に設けたカッター受けにて所定寸法のシートに切断され、このシートは搬送コンベヤーで搬送される。このとき気体吹出し機構より気体が吹き出されていて、この吹き出し気体により、前記連続紙及び切断した連続紙の切断端部がガイドバーに向くように押されてガイドバーに沿って案内され、これにより、切断された連続紙の切断端部が、カッター胴、カッター受け胴のいずれかに巻き込まれるのが防止される。
【0025】
そして前記気体吹き出し機構からの気体の吹き出し量は、連続紙の厚さに応じて気体吹き出し量調整手段により調整される。
【0026】
【発明の実施の形態】
次に、この発明の実施の形態について、図面を参照して説明する。
図1は、この発明のシート出し装置の概略図、図2は、図1のA−A矢視図、図3は、図1のB−B矢視断面図。図4は、この発明のシート出し装置の連続紙切断時の状態を示す詳細図、図5は、この発明のシート出し装置の連続紙切断後の状態を示す詳細図である。
【0027】
輪転機において、連続紙Wは、図示しない少なくとも1つの給紙装置に装着された巻取紙から引き出され、図示しない少なくとも1つの印刷装置において印刷された後、この連続紙Wが複数枚の場合には、それぞれ重ね合わせられて案内されシート出し装置SDに導入される。シート出し装置SDは、図1に示すようにニッピングローラー2、2’、カッター胴4、カッター受け胴5、ガイドバー1、気体吹出し機構(以下、空気吹出し機構3とする)及び搬送コンベヤー6を具備しており、シート出し装置SDに導入された連続紙Wを、紙幅方向と平行に切断し、所定寸法のシートSである、例えば広告チラシのような印刷物が生産されるようになっている。
【0028】
また、場合によっては、前記シートSを図示しない折畳装置に導入し、折り畳まれた印刷物とすることもできる。
【0029】
図1、図2及び図3を参照して以下にシート出し装置SDについて説明する。
【0030】
(1)ニッピングローラー2、2’
ニッピングローラー2、2’は、近接または接触して設けられかつ互いに反対方向に駆動されて回転するよう設けられた、少なくとも1対の駆動ローラーからなっている。そして、上流の給紙装置及び印刷装置からシート出し装置SDに導入された連続紙Wを、互いに反対方向に回転して後に説明する下流側のカッター胴4とカッター受け胴5との間に向けて走行させる。
【0031】
(2)カッター胴4及びカッター受け胴5
カッター胴4とカッター受け胴5とは、平行かつ周面を近接させて設けられるとともに、互いに逆向きに駆動されて回転するように設けられている。
【0032】
そしてカッター胴4には、カッター受け胴5との間で連続紙Wを予め定めた長さに切断するために、カッター胴4の軸心と平行な、紙幅方向に紙幅を超えて連続するカッター刃40が、円周方向に所定の間隔、例えば図示のように、円周の1/2の間隔位置に、刃の先端がカッター胴4の周面より突出させて設けられている。
【0033】
カッター受け胴5には、このカッター受け胴5を周回する溝51が軸方向に適宜間隔で複数設けられている。そしてこのカッター受け胴5には、カッター胴4、カッター受け胴5間に送り込まれた連続紙Wを切断するための前記カッター刃40を受けるカッター受け50が、前記カッター刃40の円周方向間隔と同じ間隔位置に、これの先端を、カッター受け胴5の外周面5aより突出させて埋設されている。このカッター受け50はゴム、合成樹脂等、弾性変形可能な材料で構成されている。
【0034】
このカッター受け50はカッター受け胴5の大径部だけに設けてもよいが、図3に示すように、カッター受け胴5の各大径部に設ける各カッター受け50をカッター受け胴5の溝51に、表面がこの溝51の径と一致するようにして埋め込まれる連結部50aを介して軸方向に一体にした構成にしてもよい。この場合カッター受け胴5に、溝51より深い溝5bを軸方向に設けてこれに一体状になった連結部50aとカッター受け50を埋め込み固定する。
【0035】
(3)ガイドバー1
ガイドバー1は、カッター胴4とカッター受け胴5との近接部で、カッター受け胴5の各溝51内に、カッター受け胴5に接しないように配されるとともに、連続紙Wの走行方向に略平行で、しかも走行する連続紙Wの紙面の近傍に設けられてこれを案内する板状体である。
【0036】
また、各ガイドバー1は、これの連続紙Wの走行方向の上流側端は、カッター胴4の軸心とカッター受け胴5の軸心とを含む仮想平面よりも上流側、すなわち、カッター胴4のカッター刃40とカッター受け胴5のカッター受け50が咬み合う位置よりも上流側にあるように設けられ、一方このガイドバー1の連続紙Wの走行方向の下流側端が、搬送コンベヤー6の入口側近傍に位置するように設けられている。これにより、ガイドバー1はカッター胴4の中心線とカッター受け胴5の中心線とを含む仮想平面をカッター受け胴5の溝51内で貫くようにして設けられる。
【0037】
さらに、前記溝51内のガイドバー1は、図3に示されるように、カッター胴4のカッター刃40と、カッター受け胴5のカッター受け50とが咬み合って連続紙Wを切断するときに、カッター刃40の先端に当たらないようにして設けられている。
【0038】
なお、この各ガイドバー1は、連続紙Wの走行方向の下流側で、かつカッター胴4とカッター受け胴5と干渉しない位置において、連結して板状の一体構成にしてもよい。
【0039】
(4)空気吹出し機構3
空気吹出し機構3は、カッター胴4、カッター受け胴5間の近傍でかつ連続紙Wの送り込みにおける上流側のカッター胴4側に設けられ、気体吹出し手段(以下、空気吹出しノズル30とする)と、気体導入管(以下、空気導入管31とする)と、気体供給手段(以下、空気供給手段32とする)とで構成される。
【0040】
詳細には、図2に示されるように空気吹出しノズル30…は、連続紙Wの紙幅方向に複数設けられ、カッター胴4、カッター受け胴5の間のガイドバー1よりもカッター胴4側に送り込まれる連続紙Wとカッター胴4の外周面との間に向かって空気が吹出されるようになっている。空気導入管31は、カッター胴4の軸線と略平行になるようにしてシート出し装置SDの図示しないフレームに両端を支持され、また、連続紙Wの紙幅方向に設けられた前記空気吹出しノズル30…に連結されてこの空気吹出しノズル30…に空気を供給するようになっている。
【0041】
空気供給手段32は、少なくとも気体供給源(以下、空気供給源33とする)及び配管部35を備え、空気供給源33から配管部35を介して空気導入管31に加圧した空気を供給する。
【0042】
また、空気吹出しノズル30…から吹き出す空気吹出し量を調整可能な気体吹出し量調整手段(以下、空気吹出し量調整手段34とする)を空気供給源33と空気導入管31との間の配管部35に設けて、空気吹出しノズル30…から吹き出される空気の量を調整可能としてもよい。
【0043】
また、空気吹出しノズル30は、例えば連続紙Wの全幅方向にわたるスリット状の開口を有する構成(図示せず)として、連続紙Wの幅方向全域にわたり略均一に、空気を吹き出すようにしてもよい。
【0044】
(5)搬送コンベヤー6
搬送コンベヤー6は、カッター胴4とカッター受け胴5の近接部より連続紙Wの走行方向下流側に設けられている。そして前記ガイドバー1の下流端近傍に、ガイドバー1で案内されてくる切断されたシートSを挿入可能なように適宜間隔を有するとともに、互いに対向内側方向に向けて回転可能に設けられた1対のローラー60、60’と、ローラー60、60’の下流側で、前記シートSが両面より挟まれて搬送される起点となるローラー61と、シートSの両面を挟み込み搬送可能なように後に説明する無端ベルト62と無端ベルト62’を互いに接触させるように、シートSの両面側に独立して設けられた複数の図示しない従動ローラー及び駆動ローラーと、シートの両面を挟んで搬送可能なように、ローラー60、ローラー61及び搬送されるシートSの一方面側に設けられた図示しない複数の従動ローラー及び駆動ローラーに掛け渡される無端ベルト62と、ローラー60’、ローラー61及び搬送されるシートSの他方面側に設けられた図示しない複数の従動ローラー及び駆動ローラーに掛け渡される無端ベルト62’で構成されている。
【0045】
次に、以上説明したシート出し装置SDの作用について、図1、図2、図3、図4及び図5を参照して説明する。
【0046】
以上の記載の構成によれば、シート出し装置SDの稼働によりカッター胴4、カッター受け胴5が同期して回転する。そして、図示しない上流のそれぞれの給紙装置からそれぞれの印刷装置を経て重ね合わせられた連続紙Wが、シート出し装置SDへ導入される。シート出し装置SDに導入された連続紙Wは、ニッピングローラー2、2’間に導入され、ニッピングローラー2、2’の回転駆動によりカッター胴4、カッター受け胴5の間に送り込まれる。詳細には、ニッピングローラー2、2’より送り込まれる重ね合わせられた連続紙Wは、カッター胴4とカッター受け胴5との間の切断装置において、カッター刃40がカッター受け50に咬み込むことによって下流側先端部が切断され除去される。
【0047】
カッター受け胴5には、図3に示されるようにカッター胴4、カッター受け胴5の間に送り込まれた連続紙Wを切断するための前記カッター刃40を受けるカッター受け50と、カッター受け胴5の外周面を周回する複数の溝51とが設けられている。
【0048】
連続紙Wの切断において、連続紙Wのカッター受け50と対応する部分は、カッター受け50とカッター胴4のカッター刃40を支持する外周部で押さえられ、前記したようにカッター刃40がカッター受け50に咬み込むことによって切断される。
【0049】
また、連続紙Wの幅方向において溝51と対応する部分を除くカッター受け50と対応する部分は、前記したようにカッター受け50とカッター胴4のカッター刃40を支持する外周部で押さえられるので、カッター刃40が前記連続紙Wのカッター受け50と対応する部分を切断するときに、連続紙Wの溝51と対応する部分も溝内に後退することなく切断される。
【0050】
一方、空気吹き出し機構3においては、連続紙Wの紙幅方向に複数設けられた空気吹出しノズル30…より吹出された空気が、カッター胴4、カッター受け胴5間のガイドバー1よりもカッター胴4側に送り込まれる連続紙Wとカッター胴4の外周面との間に向かって吹き付けられる。
【0051】
カッター胴4とカッター受け胴5は、外周面が対向させられて設けられ、かつ反対方向に回転駆動されており、連続紙Wの切断位置以外においては、カッター胴4、カッター受け胴5間に送り込まれた連続紙Wと、前記両胴間には隙間があり前記空気吹出しノズル30…により吹き出された空気は、連続紙Wとカッター胴4の外周面間に入り込むように流れをつくり、連続紙Wとカッター胴4の外周面間を押し広げるように連続紙Wをカッター受け胴5側に設けられたガイドバー1に押し付け、連続紙Wの走行方向に送りだす。
【0052】
また、図4に示されるようにカッター40とカッター受け50が咬み合う切断位置においては、カッター受け胴5のカッター受け50に受けられながら連続紙Wとカッター胴4の外周面の接触開始部から切断終了して連続紙Wとカッター胴4の外周面の接触終了部まで、カッター胴4の外周面と連続紙Wの上流側近傍部が急に絞られた閉路となり、前記空気吹出しノズル30…より吹き出された空気は、紙幅方向に逃げながらも一時蓄積される。そして次に図5に示されるようにカッター40とカッター受け50が両者の咬み合い位置を通過すると、連続紙Wとカッター胴4の外周面間に再び隙間が生じ、その隙間を押し広げるように連続紙Wの下流側へ再び空気の流れがつくられ、連続紙Wは、特に連続紙Wの切断端部は、ガイドバー1に押し付けられながらガイドバー1に従って下流側へ案内される。
【0053】
また、ガイドバー1の連続紙Wの走行方向の上流側は、カッター胴4のカッター刃40とカッター受け胴5のカッター受け50が咬み合う位置よりも上流側にあるので、連続紙Wが切断されたときにカッター受け胴5側に向いた連続紙Wの切断端部は、カッター受け胴5の外周面に吸着されても巻き込まれずに、溝51内にあるガイドバー1で受けられ、連続紙Wの切断端部はガイドバー1に沿って下流側の搬送コンベヤー6に案内される。
【0054】
次に、連続紙Wは、その切断端部が搬送コンベヤー6の適宜間隔のローラー60とローラー60’間に挿入され、無端ベルト62と無端ベルト62’が接し合うローラー61の連続紙Wの走行方向上流側の近傍に達したときに、図4に示されるようにカッター胴4、カッター受け胴5の間を通過中の部位がカッターとカッター受けの共同作用によって切断され、所定の長さのシートSとして形成される。シートSは、両面を搬送コンベヤー6の無端ベルト62と無端ベルト62’の間に挟まれて下流側に搬送されて機外へ排出される。また、切断位置上流側の連続紙Wは、空気吹出し機構3により前記と同様にカッター受け胴5側に先端が向き、ガイドバー1に沿って搬送コンベヤー6に案内され、シートSとして形成されることがくり返される。
【0055】
また、空気吹出し量調整手段34により、空気吹出しノズル30…から吹き出す空気の量を複数重ね合わせられた連続紙Wの厚さに合わせて調整することを可能にすることで、いろいろな厚さの違いに合わせて、連続紙W及び連続紙Wの切断端部をガイドバー1に押し付けて、下流方向へ案内させることができるので、連続紙Wの運ばれる状態をスムーズにでき、連続紙Wの切断端部に折れや不規則なしわが生じるのを効果的に防止できる。
【0056】
また、空気吹出しノズルから空気を連続紙Wの幅方向全域にわたり略均一に吹き出すようにすることで、連続紙Wの幅方向にむらなく空気を吹き付けることが可能であり、カッター胴4、カッター受け胴5内に送り込まれる連続紙Wとカッター胴4の外周面との間に均一に流れをつくり、連続紙W及び連続紙Wの切断端部をガイドバー1に押し付け、下流方向へ送りだす効果を更に高めることができ、連続紙Wをガイドバー1に沿って下流方向へ効率よく送りだすことが可能である。
【0057】
【発明の効果】
以上記載の通りであるので、シート出し装置において、連続紙をカッター胴との間で切断するカッター受け胴の外周面に溝を設け、この溝内に連続紙の走行方向に略平行にガイドバーを設けるとともに、カッター胴とカッター受け胴との間に送り込まれる連続紙とカッター胴の外周面との間に向かって、連続紙送り込み上流側より気体を吹き出すように気体吹出し機構を設けたことにより、連続紙及び切断した連続紙の切断端部がカッター受け胴及びガイドバーに向くように押されて、ガイドバーに沿って案内されるようにしたので、切断された連続紙の切断端部が、カッター胴、カッター受け胴のいずれかの胴の外周面に吸着されて巻き込まれるのを防止し、連続紙が胴の外周面に巻き込まれることによって生じる断紙による機械停止や周辺部品の破損が防止される。
【0058】
また、気体吹出し量調整手段により連続紙の厚さに合わせて気体の吹出し量を調整し、ガイドバーに沿って連続紙を下流へ案内するようにしたので、連続紙の切断端部に折れやしわが生じるのを防止することができるとともに、損紙を低減することができる。
【0059】
また、気体吹出し機構を連続紙の幅方向全域にわたり略均一に気体が吹き出されるようにしたことで、連続紙の幅方向にむらなく気体が吹き付けられるので、気体の作用効率が良く、連続紙をガイドバーに沿って下流方向へ効率よく送りだすことができた。更に、機構を簡易な装置としたことで、コストダウンを図ることができ、かつメンテナンスを容易にすることができた。
【図面の簡単な説明】
【図1】この発明のシート出し装置の概略図である。
【図2】図1のA−A矢視図である。
【図3】図1のB−B矢視断面図である。
【図4】この発明のシート出し装置の連続紙切断時の状態を示す詳細図である。
【図5】この発明のシート出し装置の連続紙切断後の状態を示す詳細図である。
【符号の説明】
1…ガイドバー            2、2’…ニッピングローラー
3…空気吹出し機構(気体吹出し機構) 30…空気吹出しノズル(気体吹出し手段)
31…空気導入管(気体導入管)    32…空気供給手段(気体供給手段)
33…空気供給源(気体供給源)    34…空気吹出し量調整手段(気体吹出し量調整手段)
35…配管部
4…カッター胴            40…カッター刃
5…カッター受け胴          5a…外周面  5b…溝
50…カッター受け、50a…連結部
51…溝
6…搬送コンベヤー
60、60’…ローラー        61…ローラー
62、62’…無端ベルト
SD…シート出し装置
S…シート
W…連続紙
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sheet feeding device that feeds continuous paper printed by a printing device of a rotary press between a cutter cylinder and a cutter receiving cylinder, cuts the paper in parallel with the paper width, and forms a sheet of a predetermined size. A guide bar is provided on the receiving cylinder side, and a gas is blown out by a gas blowing mechanism between the continuous paper fed between the cutter cylinder and the cutter receiving cylinder and the outer peripheral surface of the cutter cylinder. Thus, when the continuous paper is cut between the cutter cylinder and the cutter receiving cylinder, the cut end of the cut continuous paper is guided to the downstream side along the guide bar, thereby cutting the continuous paper. The present invention relates to a sheet feeding device that prevents a cut continuous paper from being wound around an outer peripheral surface of a cutter cylinder or a cutter receiving cylinder.
[0002]
[Prior art]
As a sheet feeding device provided so that the running continuous paper is fed between the cutter cylinder and the cutter receiving cylinder, and the cut sheet and the cut end of the continuous paper are stably guided to the downstream conveyor. For example, Japanese Unexamined Patent Application Publications Nos. HEI 11-163, A, H10, and H06-31566 are known.
[0003]
The sheet feeding device disclosed in Patent Document 1 has a cutter cylinder and a cutter receiving cylinder that cut continuous paper fed from upstream between the cylinders, and a cutting end of the cut sheet and continuous paper in a downstream direction. Guide means provided on both sides of the continuous paper to be guided, and a transport conveyor for transporting the sheet cut from the continuous paper further downstream while being guided by the guide means.
[0004]
The cutter cylinder is provided with cutter blades provided on the outer peripheral surface at predetermined intervals in a circumferential direction, and the cutter receiving cylinder has a cutter receiver for receiving the cutter blade of the cutter cylinder on the outer peripheral surface in a predetermined circumferential direction. Are provided at intervals.
[0005]
The guide means are provided on both sides of the continuous paper, and are opposed to each other at appropriate intervals from the vicinity of the outer peripheral surfaces of the cutter cylinder and the cutter receiving cylinder on the downstream side of the cutting position between the cutter cylinder and the cutter receiving cylinder. It is continuous to the vicinity of a pair of rollers provided as an entrance of the conveyor so as to rotate.
[0006]
In addition, the transport conveyor is provided independently on both sides of the sheet cut from the continuous paper by the cutter cylinder and the cutter receiving cylinder, and the end roller is used to wind the inlet roller and the downstream roller on the same side. The cut and fed sheets are in contact with each other at an appropriate position downstream of the rollers on the entrance side so that the cut and fed sheets can be sandwiched and conveyed from both sides.
[0007]
According to this configuration, the continuous paper is fed to the cutter cylinder and the cutter receiving cylinder and cut. The cut sheet on the downstream side of the cutting position is conveyed to the downstream side by the conveyance conveyor with both surfaces of the sheet sandwiched between endless belts. In addition, when the continuous paper on the upstream side of the cutting position is fed downstream from the opposing portion of the cutter cylinder and the cutter receiving cylinder, even if it receives air resistance due to the traveling speed, it turns up at the cutting end and the corners are bent. When the cut end reaches near the position where the opposite belts of the conveyor are in contact with each other, the cutting end is being passed between the cutter cylinder and the cutter receiving cylinder. The part is cut into a sheet by the cooperative action of the cutter and the cutter receiver, is inserted into the conveyor in the form of a sheet, is conveyed downstream, and is carried out of the machine.
[0008]
Further, a sheet feeding device disclosed in Patent Document 2 includes a cutter cylinder and a cutter receiving cylinder for cutting continuous paper fed from upstream between the cylinders, and a cutting end of the cut sheet and continuous paper in a downstream direction. A pair of brush rollers provided so as to be rotatable in directions opposite to the rotation of the cutter cylinder and the cutter receiving cylinder while being in contact with the outer peripheral surfaces of the cutter cylinder and the cutter receiving cylinder downstream from the cutting position, The continuous paper, which is arranged downstream of the pair of brush rollers and is being guided by the brush rollers, is cut between the upstream cutter cylinder and the cutter receiving cylinder to convey the sheet formed further downstream. And a transport conveyor.
[0009]
The cutter cylinder is provided with cutter blades provided on the outer peripheral surface at predetermined intervals in a circumferential direction, and the cutter receiving cylinder has a cutter receiver for receiving the cutter blade of the cutter cylinder on the outer peripheral surface in a predetermined circumferential direction. Are provided at intervals.
[0010]
Also, the brush roller is in contact with the outer peripheral surfaces of the cutter cylinder and the cutter receiving cylinder in the vicinity of the downstream side of the cutting position of the continuous paper between the cutter cylinder and the cutter receiving cylinder, and is rotatable in the opposite direction to the contacting cylinder, in the axial direction. A pair of rollers each having a brush and a pulley disposed at appropriate intervals are provided.
[0011]
In addition, the transport conveyor winds a brush roller pulley independently provided on each side of the sheet and a downstream roller on the same side with an endless belt, and sandwiches the fed cut sheet from both sides and transports the sheet. They contact each other at an appropriate position downstream of the brush roller as much as possible.
[0012]
According to this configuration, the continuous paper is fed to the cutter cylinder and the cutter receiving cylinder and cut. The cut sheet on the downstream side of the cutting position is conveyed to the downstream by a conveying conveyor with both surfaces of the sheet sandwiched between endless belts. In addition, even if the continuous paper on the upstream side of the cutting position is electrostatically attracted and the cut end is attracted to and entangled with the outer peripheral surface of either the cutter cylinder or the cutter receiving cylinder, the cut end of the continuous paper is The cut end of the continuous paper is scraped off from the outer peripheral surface of the drum by a brush of a brush roller provided on the side where the roll is wound, and is guided to the transport conveyor. When the cut end reaches near the position where the opposite belts of the conveyor are in contact with each other, the portion of the continuous paper that is passing between the cutter cylinder and the cutter receiving cylinder is formed by the cooperative action of the cutter and the cutter receiver. The sheet is cut and formed into a sheet, inserted into a conveying conveyor in a sheet state, conveyed downstream, and carried out of the machine.
[0013]
The sheet feeding device disclosed in Patent Document 3 has a cutter cylinder and a cutter receiving cylinder for cutting continuous paper fed from upstream between the cylinders, and a cutting position around each of the cutter cylinder and the cutter receiving cylinder. And conveyance means provided so as to be in contact with each other so as to be able to guide the continuous paper from the upstream side to the downstream side.
[0014]
The cutter cylinder is provided with cutter blades provided on the outer peripheral surface at predetermined intervals in a circumferential direction, and the cutter receiving cylinder has a cutter receiver for receiving the cutter blade of the cutter cylinder on the outer peripheral surface in a predetermined circumferential direction. Are provided at intervals.
[0015]
Further, the conveying means is provided so as not to hit the cutter of the cutter cylinder and the cutter receiver of the cutter receiving cylinder, and is opposed to each other from upstream to downstream of the continuous paper cutting position between the cutter cylinder and the cutter receiving cylinder, and is rotated. It is formed as a pair of endless belts so that the continuous paper can be sandwiched in the opposite direction.
[0016]
According to this configuration, the continuous paper is sandwiched by the transporting means, guided to the downstream side, and cut between the cutter cylinder and the cutter receiving cylinder. The cut sheet on the cutting downstream side is transported downstream while being sandwiched by the transporting means. Further, the continuous paper on the upstream side of the cutting position is also regulated and conveyed downstream while being sandwiched by the conveying means, and a portion passing between the cutter cylinder and the cutter receiving cylinder at an appropriate position is formed by the cooperative action of the cutter and the cutter receiver. The sheet is cut and formed into a sheet, transported downstream while being sandwiched by the transporting means in the state of the sheet, and carried out of the apparatus.
[0017]
[Patent Document 1]
U.S. Pat. No. 5,839,365 (columns 3 to 5, FIG. 2)
[Patent Document 2]
Japanese Patent Publication No. 1-2120 (Pages 1 to 3; Fig. 2)
[Patent Document 3]
JP-A-10-87162 (pages 5 to 6, FIG. 5)
[0018]
[Problems to be solved by the invention]
According to the technique disclosed in Patent Document 1, when static electricity is charged in the continuous paper, the cut end of the cut continuous paper is adsorbed on the outer peripheral surface of either the cutter cylinder or the cutter receiving cylinder. However, the cut end of the continuous paper entered between any one of the cylinders and the guide and wrapped around the cylinder, causing a paper jam and stopping the machine. In addition, the guide was damaged.
[0019]
Further, in the technique disclosed in Patent Document 2, it is assumed that the cut end of the continuous paper adsorbed on the cutter cylinder or the cutter receiving cylinder by the static electricity is peeled off from the outer peripheral surface of the cylinder by a brush roller and is sent to the entrance side of the transport conveyor. Also, since the cutting end of the continuous paper is drawn out from the cutting position along the outer peripheral surface of the drum, it is temporarily returned to the upstream side according to the rotation of the brush roller, and enters the entrance side of the conveyor, When the continuous paper was returned against the feeding from the upstream, the continuous paper might be broken or rubbed and fed to the conveyor in a crumpled state, resulting in a defective sheet product and a waste sheet.
[0020]
Further, in the apparatus disclosed in Patent Document 3, since the transport means is provided around the cutter cylinder and the cutter receiving cylinder so as not to hit the cutter and the cutter receiver, the apparatus becomes large-scale and requires many parts. Therefore, the cost becomes high, and the circumference of the cutter cylinder and the cutter receiving cylinder is wider than the paper width and is covered with an endless belt-shaped one, which makes maintenance difficult.
[0021]
SUMMARY OF THE INVENTION The present invention is to solve the problems of the conventional technology at once, and the cutting end of the continuous paper cut between the cutter cylinder of the sheet feeding device and the cutter receiving cylinder is any one after cutting. To prevent the machine from being stopped by the paper jam and to prevent damage to the peripheral parts. The purpose of the present invention is to prevent the occurrence of folds or irregular wrinkles at the cut end of the continuous paper, and to reduce waste paper. Further, it is another object of the present invention to make the mechanism a simple device, reduce costs and facilitate maintenance.
[0022]
[Means for Solving the Problems]
In order to achieve the above object, a sheet feeding device according to claim 1 of the present invention comprises a cutter body having cutter blades provided on an outer peripheral surface at predetermined intervals in a circumferential direction, and a cutter receiver for receiving the cutter blade. The cutter receiving cylinders provided at predetermined intervals in the circumferential direction on the surface are provided in parallel and close to each other, and a transport conveyor is provided on the downstream side in the running direction of the continuous paper from the proximity of these two cylinders. At least one continuous paper traveling between the cylinders is cut in parallel with the paper width direction into a sheet of a predetermined size by a cooperative action of a cutter blade and a cutter receiver, and a sheet delivery device that transports the sheet by a transport conveyor. At least one groove provided around the outer peripheral surface of the cylinder provided in the cutter receiving cylinder, and disposed between the cutter cylinder and the cutter receiving cylinder substantially in parallel with the running direction of the continuous paper; A guide bar that is provided so as to penetrate a virtual plane including the center line of the cutter receiving cylinder in the groove of the cutter receiving cylinder, and guides the continuous paper toward the transport conveyor on the side of the cutter receiving side; A gas blowing mechanism provided to blow gas from the upstream side of the continuous paper feeding section between the continuous paper that is fed and travels closer to the cutter cylinder side than the guide bar between the cutter receiving cylinders and the outer peripheral surface of the cutter cylinder. By a gas blowing mechanism, a gas is blown from the upstream side of the continuous paper feeding between the continuous paper fed between the two cylinders and the outer peripheral surface of the cutter cylinder, and the flow of the gas causes the cutter blade and the cutter to flow. The cutting end of the continuous paper cut by the receiver is guided in the running direction according to the guide bar.
[0023]
In this sheet ejection device, the gas ejection mechanism is provided so that gas is ejected substantially uniformly over the entire area of the continuous paper in the paper width direction, and / or the gas ejection amount is adjustable to the gas ejection mechanism. The configuration is provided with adjusting means.
[0024]
[Operation]
In the above configuration, the continuous paper fed between the cutter cylinder and the cutter receiving cylinder is cut into sheets of predetermined dimensions by a cutter provided on the cutter cylinder and a cutter receiver provided on the cutter receiving cylinder, and the sheet is conveyed. Conveyed by conveyor. At this time, gas is being blown from the gas blowing mechanism, and the blown gas pushes the cut end of the continuous paper and the cut continuous paper so as to face the guide bar and is guided along the guide bar. The cut end of the cut continuous paper is prevented from being caught in any of the cutter cylinder and the cutter receiving cylinder.
[0025]
The amount of gas blown out from the gas blowing mechanism is adjusted by the gas blowout amount adjusting means according to the thickness of the continuous paper.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view of the sheet feeding device of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line BB of FIG. FIG. 4 is a detailed view showing the state of the sheet feeding device of the present invention when cutting continuous paper, and FIG. 5 is a detailed view showing the state of the sheet feeding device of the present invention after cutting continuous paper.
[0027]
In the rotary press, the continuous paper W is drawn out from a web mounted on at least one paper feeding device (not shown), and is printed by at least one printing device (not shown). Are superimposed and guided, respectively, and are introduced into the sheet feeding device SD. As shown in FIG. 1, the sheet feeding device SD includes nipping rollers 2 and 2 ′, a cutter cylinder 4, a cutter receiving cylinder 5, a guide bar 1, a gas blowing mechanism (hereinafter, referred to as an air blowing mechanism 3), and a transport conveyor 6. The continuous paper W introduced into the sheet feeding device SD is cut in parallel with the paper width direction, and a printed matter such as an advertisement leaflet, which is a sheet S of a predetermined size, is produced. I have.
[0028]
In some cases, the sheet S may be introduced into a folding device (not shown) to obtain a folded print.
[0029]
Hereinafter, the sheet feeding device SD will be described with reference to FIGS. 1, 2, and 3.
[0030]
(1) Nipping rollers 2, 2 '
The nip rollers 2, 2 'comprise at least one pair of drive rollers which are provided in close proximity or contact and which are arranged to be driven and rotated in opposite directions. Then, the continuous paper W introduced from the upstream paper feeding device and the printing device to the sheet feeding device SD is rotated in opposite directions to be directed between the downstream cutter cylinder 4 and the cutter receiving cylinder 5 described later. To run.
[0031]
(2) Cutter cylinder 4 and cutter receiving cylinder 5
The cutter cylinder 4 and the cutter receiving cylinder 5 are provided in parallel and with their peripheral surfaces close to each other, and are provided so as to be driven in opposite directions to rotate.
[0032]
In order to cut the continuous paper W into a predetermined length between the cutter cylinder 4 and the cutter receiving cylinder 5, a cutter that is parallel to the axis of the cutter cylinder 4 and continues beyond the paper width in the paper width direction. The blade 40 is provided at a predetermined interval in the circumferential direction, for example, at an interval of の of the circumference as shown in the drawing, with the tip of the blade protruding from the peripheral surface of the cutter body 4.
[0033]
The cutter receiving cylinder 5 is provided with a plurality of grooves 51 surrounding the cutter receiving cylinder 5 at appropriate intervals in the axial direction. In the cutter receiving cylinder 5, a cutter receiver 50 for receiving the cutter blade 40 for cutting the continuous paper W sent between the cutter cylinder 4 and the cutter receiving cylinder 5 has a circumferential interval between the cutter blades 40. At the same interval position as above, the tip is embedded so as to protrude from the outer peripheral surface 5a of the cutter receiving cylinder 5. The cutter receiver 50 is made of an elastically deformable material such as rubber and synthetic resin.
[0034]
The cutter receiver 50 may be provided only at the large diameter portion of the cutter receiving cylinder 5. However, as shown in FIG. A configuration may be adopted in which the surface 51 is integrated in the axial direction via a connecting portion 50a that is embedded so that the surface thereof matches the diameter of the groove 51. In this case, a groove 5b deeper than the groove 51 is provided in the cutter receiving cylinder 5 in the axial direction, and the integral connecting portion 50a and the cutter receiver 50 are embedded and fixed therein.
[0035]
(3) Guide bar 1
The guide bar 1 is disposed in the vicinity of the cutter cylinder 4 and the cutter cylinder 5 in each groove 51 of the cutter cylinder 5 so as not to be in contact with the cutter cylinder 5 and in the running direction of the continuous paper W. And a plate-like body that is provided near the paper surface of the running continuous paper W and guides it.
[0036]
The upstream end of each guide bar 1 in the running direction of the continuous paper W is located upstream of an imaginary plane including the axis of the cutter cylinder 4 and the axis of the cutter receiving cylinder 5, ie, the cutter cylinder. The cutter bar 40 of the guide bar 1 and the cutter receiver 50 of the cutter receiving cylinder 5 are provided on the upstream side of the position where the cutter blade 40 engages, and the downstream end of the guide bar 1 in the running direction of the continuous paper W is Is provided in the vicinity of the entrance side. Thus, the guide bar 1 is provided so as to penetrate a virtual plane including the center line of the cutter cylinder 4 and the center line of the cutter cylinder 5 in the groove 51 of the cutter cylinder 5.
[0037]
Further, as shown in FIG. 3, the guide bar 1 in the groove 51 is used when the cutter blade 40 of the cutter cylinder 4 and the cutter receiver 50 of the cutter receiving cylinder 5 are engaged with each other to cut the continuous paper W. , So as not to hit the tip of the cutter blade 40.
[0038]
The guide bars 1 may be connected to each other at a position downstream of the running direction of the continuous paper W and at a position where the guide bar 1 does not interfere with the cutter cylinder 4 and the cutter receiving cylinder 5 to form a plate-like integrated structure.
[0039]
(4) Air blowing mechanism 3
The air blowing mechanism 3 is provided in the vicinity of the cutter cylinder 4 and the cutter receiving cylinder 5 and on the upstream side of the cutter cylinder 4 in feeding the continuous paper W, and includes a gas blowing unit (hereinafter, referred to as an air blowing nozzle 30). , A gas introduction pipe (hereinafter, referred to as an air introduction pipe 31), and a gas supply means (hereinafter, referred to as an air supply means 32).
[0040]
In detail, as shown in FIG. 2, a plurality of air blowing nozzles 30 are provided in the paper width direction of the continuous paper W, and are closer to the cutter cylinder 4 than the guide bar 1 between the cutter cylinder 4 and the cutter receiving cylinder 5. Air is blown out between the fed continuous paper W and the outer peripheral surface of the cutter cylinder 4. The air introducing pipe 31 is supported at both ends by a frame (not shown) of the sheet feeding device SD so as to be substantially parallel to the axis of the cutter cylinder 4, and the air blowing nozzle 30 provided in the paper width direction of the continuous paper W. Are connected to supply air to the air blowing nozzles 30.
[0041]
The air supply means 32 includes at least a gas supply source (hereinafter, referred to as an air supply source 33) and a pipe section 35, and supplies pressurized air from the air supply source 33 to the air introduction pipe 31 via the pipe section 35. .
[0042]
Further, a gas blowing amount adjusting means (hereinafter, referred to as an air blowing amount adjusting means 34) capable of adjusting an air blowing amount blown from the air blowing nozzles 30 is provided in a piping section 35 between the air supply source 33 and the air introducing pipe 31. And the amount of air blown from the air blowing nozzles 30 may be adjustable.
[0043]
Further, the air blowing nozzle 30 may be configured to have a slit-shaped opening (not shown) extending in the full width direction of the continuous paper W, for example, to blow air substantially uniformly over the entire width direction of the continuous paper W. .
[0044]
(5) Conveyor 6
The conveyor 6 is provided downstream of the vicinity of the cutter cylinder 4 and the cutter receiving cylinder 5 in the traveling direction of the continuous paper W. In the vicinity of the downstream end of the guide bar 1, there is provided an appropriate interval so that the cut sheets S guided by the guide bar 1 can be inserted, and the rotatable members 1 are provided so as to be rotatable inward toward each other. A pair of rollers 60, 60 ', a roller 61 serving as a starting point at which the sheet S is sandwiched and transported from both sides on the downstream side of the rollers 60, 60', and A plurality of driven rollers and drive rollers (not shown) provided independently on both sides of the sheet S so as to contact the endless belt 62 and the endless belt 62 ′ to be described with each other so that the sheet S can be conveyed across both sides of the sheet. , An endless bell that is wound around a plurality of driven rollers and a driving roller (not shown) provided on one side of the roller S, the roller 61 and the sheet S to be conveyed. And 62, roller 60 is composed of 'an endless belt 62 passed around a plurality of driven rollers and a drive roller (not shown) provided on the other side of the sheet S roller 61 and the conveyance'.
[0045]
Next, the operation of the sheet feeding device SD described above will be described with reference to FIGS. 1, 2, 3, 4, and 5. FIG.
[0046]
According to the configuration described above, the cutter cylinder 4 and the cutter receiving cylinder 5 rotate in synchronization with the operation of the sheet feeding device SD. Then, the continuous paper W superimposed from the respective upstream paper feeding devices (not shown) via the respective printing devices is introduced into the sheet feeding device SD. The continuous paper W introduced into the sheet feeding device SD is introduced between the nip rollers 2 and 2 ′, and is sent between the cutter cylinder 4 and the cutter receiving cylinder 5 by rotation of the nip rollers 2 and 2 ′. More specifically, the continuous web W fed from the nip rollers 2 and 2 ′ is cut by the cutter 40 between the cutter cylinder 4 and the cutter receiving cylinder 5 so that the cutter blade 40 bites into the cutter receiver 50. Thereby, the downstream end is cut and removed.
[0047]
As shown in FIG. 3, the cutter receiving cylinder 5 includes a cutter receiving cylinder 50, a cutter receiver 50 for receiving the cutter blade 40 for cutting the continuous paper W fed between the cutter receiving cylinders 5, and a cutter receiving cylinder. 5, a plurality of grooves 51 orbiting the outer peripheral surface.
[0048]
In cutting the continuous paper W, the portion of the continuous paper W corresponding to the cutter receiver 50 is pressed by the outer periphery of the cutter receiver 50 and the cutter blade 4 supporting the cutter blade 40, and the cutter blade 40 is moved by the cutter receiver as described above. It is cut by biting into 50.
[0049]
In addition, the portion corresponding to the cutter receiver 50 except for the portion corresponding to the groove 51 in the width direction of the continuous paper W is pressed by the outer peripheral portion supporting the cutter receiver 50 and the cutter blade 40 of the cutter body 4 as described above. When the cutter blade 40 cuts the portion of the continuous paper W corresponding to the cutter receiver 50, the portion of the continuous paper W corresponding to the groove 51 is also cut without retreating into the groove.
[0050]
On the other hand, in the air blowing mechanism 3, the air blown from a plurality of air blowing nozzles 30 provided in the paper width direction of the continuous paper W is transmitted to the cutter cylinder 4 rather than the guide bar 1 between the cutter cylinder 4 and the cutter receiving cylinder 5. Is blown between the continuous paper W fed to the side and the outer peripheral surface of the cutter cylinder 4.
[0051]
The cutter cylinder 4 and the cutter receiving cylinder 5 are provided with their outer peripheral surfaces opposed to each other, and are driven to rotate in opposite directions, except between the cutting position of the continuous paper W and the cutter cylinder 4 and the cutter receiving cylinder 5. There is a gap between the fed continuous paper W and the two cylinders, and the air blown out by the air blowing nozzles 30 creates a flow so as to enter between the continuous paper W and the outer peripheral surface of the cutter cylinder 4, The continuous paper W is pressed against the guide bar 1 provided on the cutter receiving cylinder 5 side so as to push and spread the paper W and the outer peripheral surface of the cutter drum 4, and is fed in the running direction of the continuous paper W.
[0052]
Further, as shown in FIG. 4, at the cutting position where the cutter 40 and the cutter receiver 50 are engaged with each other, the continuous paper W and the outer peripheral surface of the cutter drum 4 come into contact with each other while being received by the cutter receiver 50 of the cutter receiving drum 5. After the cutting is completed, the outer peripheral surface of the cutter cylinder 4 and the vicinity of the upstream side of the continuous paper W are sharply squeezed until the end of contact between the continuous paper W and the outer peripheral surface of the cutter cylinder 4 is closed. The blown air is temporarily stored while escaping in the paper width direction. Then, as shown in FIG. 5, when the cutter 40 and the cutter receiver 50 pass through the meshing position of the both, a gap is again formed between the continuous paper W and the outer peripheral surface of the cutter cylinder 4, and the gap is pushed and widened. An air flow is created again downstream of the continuous paper W, and the continuous paper W is guided to the downstream side according to the guide bar 1 while being pressed against the guide bar 1, particularly at the cut end of the continuous paper W.
[0053]
Further, since the upstream side of the guide bar 1 in the traveling direction of the continuous paper W is located upstream of the position where the cutter blade 40 of the cutter cylinder 4 and the cutter receiver 50 of the cutter receiving cylinder 5 engage, the continuous paper W is cut. When cut, the cut end of the continuous paper W facing the cutter receiving cylinder 5 is received by the guide bar 1 in the groove 51 without being caught in the outer peripheral surface of the cutter receiving cylinder 5 even if it is attracted to the cutter receiving cylinder 5. The cut end of the paper W is guided along the guide bar 1 to the transport conveyor 6 on the downstream side.
[0054]
Next, the continuous paper W is inserted between the roller 60 and the roller 60 'at an appropriate interval of the conveyor 6 at the cut end, and the continuous paper W of the roller 61 in which the endless belt 62 and the endless belt 62' are in contact with each other. When reaching the vicinity of the upstream side in the direction, as shown in FIG. 4, a portion passing between the cutter cylinder 4 and the cutter receiving cylinder 5 is cut by the cooperative action of the cutter and the cutter receiver, and a predetermined length is obtained. It is formed as a sheet S. The sheet S is sandwiched between the endless belt 62 and the endless belt 62 ′ of the transport conveyor 6, transported downstream, and discharged out of the machine. Further, the continuous paper W on the upstream side of the cutting position is directed to the cutter receiving cylinder 5 side by the air blowing mechanism 3 in the same manner as described above, guided along the guide bar 1 to the transport conveyor 6, and formed as a sheet S. This is repeated.
[0055]
Further, by making it possible to adjust the amount of air blown out from the air blowout nozzles 30 in accordance with the thickness of the continuous paper W which is superposed on a plurality of sheets by the air blowout amount adjusting means 34, various thicknesses can be obtained. According to the difference, the continuous paper W and the cut end of the continuous paper W can be pressed against the guide bar 1 and guided in the downstream direction. It is possible to effectively prevent the cut end from being bent or irregularly wrinkled.
[0056]
Further, by blowing air from the air blowing nozzle substantially uniformly over the entire width direction of the continuous paper W, it is possible to blow air evenly in the width direction of the continuous paper W, and the cutter body 4 and the cutter receiving member can be blown. The uniform flow is created between the continuous paper W fed into the drum 5 and the outer peripheral surface of the cutter drum 4, and the continuous paper W and the cut end of the continuous paper W are pressed against the guide bar 1 to feed the paper downstream. Further, the continuous paper W can be efficiently sent downstream along the guide bar 1.
[0057]
【The invention's effect】
As described above, in the sheet feeding apparatus, a groove is provided on the outer peripheral surface of the cutter receiving cylinder that cuts the continuous paper between the cutter cylinder and the guide bar. And a gas blowing mechanism for blowing gas from the continuous paper feeding upstream side between the continuous paper fed between the cutter cylinder and the cutter receiving cylinder and the outer peripheral surface of the cutter cylinder. Since the cut end of the continuous paper and the cut continuous paper are pushed toward the cutter receiving cylinder and the guide bar and guided along the guide bar, the cut end of the cut continuous paper is To prevent it from being sucked and caught in the outer peripheral surface of any of the cutter cylinder and the cutter receiving cylinder, and to stop the machine due to paper breakage caused by the continuous paper being caught in the outer peripheral surface of the cylinder. Parts of the damage can be prevented.
[0058]
In addition, since the gas blowing amount is adjusted by the gas blowing amount adjusting means in accordance with the thickness of the continuous paper and the continuous paper is guided downstream along the guide bar, the continuous paper may be broken at the cut end. It is possible to prevent wrinkles from occurring and reduce waste paper.
[0059]
In addition, the gas blowing mechanism allows the gas to be blown out substantially uniformly over the entire width of the continuous paper, so that the gas is blown evenly in the width direction of the continuous paper. Could be efficiently sent downstream along the guide bar. Further, by using a simple mechanism, the cost can be reduced and the maintenance can be facilitated.
[Brief description of the drawings]
FIG. 1 is a schematic view of a sheet feeding device according to the present invention.
FIG. 2 is a view as viewed in the direction of arrows AA in FIG. 1;
FIG. 3 is a sectional view taken along line BB of FIG. 1;
FIG. 4 is a detailed view showing a state of the sheet feeding device of the present invention when cutting continuous paper.
FIG. 5 is a detailed view showing a state after cutting the continuous paper of the sheet feeding device of the present invention.
[Explanation of symbols]
1: Guide bar 2, 2 ': Nipping roller
3. Air blowing mechanism (gas blowing mechanism) 30: Air blowing nozzle (gas blowing means)
31 ... air introduction pipe (gas introduction pipe) 32 ... air supply means (gas supply means)
33 ... Air supply source (gas supply source) 34 ... Air blowing amount adjusting means (gas blowing amount adjusting means)
35 ... Piping
4 ... Cutter body 40 ... Cutter blade
5: Cutter receiving cylinder 5a: Outer peripheral surface 5b: Groove
50: cutter receiver, 50a: connecting part
51 ... groove
6 ... Conveyor
60, 60 '... roller 61 ... roller
62, 62 '... endless belt
SD: Sheet feeding device
S ... sheet
W: Continuous paper

Claims (3)

カッター刃を外周面に円周方向に所定の間隔で設けたカッター胴と、カッター刃を受けるカッター受けを外周面に円周方向に所定の間隔で設けたカッター受け胴とを、平行に近接させて設けるとともに、これら2つの胴の近接部より連続紙の走行方向下流側に搬送コンベヤーを設け、前記2つの胴の間を走行する少なくとも1枚の連続紙をカッター刃とカッター受けとの共同作用で紙幅方向と平行に切断して所定寸法のシートにし、このシートを搬送コンベヤーで搬送するシート出し装置において、
カッター受け胴に設けたこの胴の外周面を周回する少なくとも1つの溝と、
カッター胴とカッター受け胴間に連続紙の走行方向と略平行に配され、カッター胴の中心線とカッター受け胴の中心線とを含む仮想平面をカッター受け胴の溝内で貫くように設けられ、カッター胴側の側面にて連続紙を搬送コンベヤーへ向けてガイドするガイドバーと、
カッター胴とカッター受け胴間でガイドバーよりもカッター胴側に送り込まれて走行する連続紙とカッター胴の外周面との間に向かって、連続紙送り込み上流側より気体を吹き出すように設けられた気体吹出し機構と
を有し、
気体吹出し機構により、前記両胴間に送り込まれる連続紙とカッター胴の外周面との間に、連続紙送り込み上流側より気体を吹き出し、この気体の流れにより、カッター刃とカッター受けとで切断された連続紙の切断端部を前記ガイドバーに従って走行方向に案内するようにしたことを特徴とするシート出し装置。
The cutter cylinder provided with the cutter blades on the outer peripheral surface at predetermined intervals in the circumferential direction, and the cutter receiving cylinder provided with the cutter receiver for receiving the cutter blades on the outer peripheral surface at predetermined intervals in the circumferential direction are brought close to and parallel to each other. A conveyor is provided downstream of the vicinity of these two cylinders in the running direction of the continuous paper, and at least one continuous paper traveling between the two cylinders is cooperated with a cutter blade and a cutter receiver. In a sheet feeder that cuts a sheet of a predetermined size by cutting the sheet in parallel with the paper width direction and conveying the sheet by a conveyor.
At least one groove provided around the outer peripheral surface of the cutter receiving cylinder,
The cutter cylinder and the cutter receiving cylinder are disposed substantially parallel to the running direction of the continuous paper, and are provided so as to pass through a virtual plane including the center line of the cutter cylinder and the center line of the cutter receiving cylinder in the groove of the cutter receiving cylinder. A guide bar that guides the continuous paper toward the conveyor on the side of the cutter body;
Between the cutter cylinder and the cutter receiving cylinder, a gas was blown from the continuous paper feeding upstream side between the continuous paper that is fed toward the cutter cylinder side from the guide bar and travels and the outer peripheral surface of the cutter cylinder. Having a gas blowing mechanism,
By the gas blowing mechanism, a gas is blown out from the continuous paper feeding upstream side between the continuous paper fed between the two cylinders and the outer peripheral surface of the cutter cylinder, and is cut by the cutter blade and the cutter receiver by the flow of the gas. A sheet cutting device for guiding a cut end of the continuous paper in a running direction according to the guide bar.
気体吹出し機構を、連続紙の紙幅方向の全域にわたり略均一に気体が吹き出されるように設けたことを特徴とする請求項1記載のシート出し装置。2. The sheet ejection device according to claim 1, wherein the gas ejection mechanism is provided such that the gas is ejected substantially uniformly over the entire area of the continuous paper in the paper width direction. 気体吹出し機構に、気体吹出し量を調整可能な気体吹出し量調整手段を設けたことを特徴とする請求項1または請求項2記載のシート出し装置。3. The sheet ejection device according to claim 1, wherein the gas ejection mechanism is provided with gas ejection amount adjusting means capable of adjusting the gas ejection amount.
JP2002311113A 2002-10-25 2002-10-25 Sheet take-out device Expired - Fee Related JP3760383B2 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1873104A1 (en) 2006-06-30 2008-01-02 Komori Corporation Folding apparatus
WO2009119180A1 (en) * 2008-03-27 2009-10-01 三菱重工業株式会社 Sheet paper discharge device
US20110002727A1 (en) * 2008-03-24 2011-01-06 Olympus Corporation Medium cutting device, image recording apparatus having the medium cutting device, and controlling method of the medium cutting device
WO2020011599A1 (en) * 2018-07-13 2020-01-16 Bw Papersystems Hamburg Gmbh Cross-cutting device and method for stabilizing a cutting edge during crush cutting
CN114918986A (en) * 2022-05-23 2022-08-19 深圳市语辰翻译有限公司 Image-text design preparation is with adsorbing from arrangement formula intermittent type transport equipment of tailorring

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1873104A1 (en) 2006-06-30 2008-01-02 Komori Corporation Folding apparatus
US20110002727A1 (en) * 2008-03-24 2011-01-06 Olympus Corporation Medium cutting device, image recording apparatus having the medium cutting device, and controlling method of the medium cutting device
US8326205B2 (en) * 2008-03-24 2012-12-04 Riso Kagaku Corporation Medium cutting device, image recording apparatus having the medium cutting device, and controlling method of the medium cutting device
WO2009119180A1 (en) * 2008-03-27 2009-10-01 三菱重工業株式会社 Sheet paper discharge device
WO2020011599A1 (en) * 2018-07-13 2020-01-16 Bw Papersystems Hamburg Gmbh Cross-cutting device and method for stabilizing a cutting edge during crush cutting
CN114918986A (en) * 2022-05-23 2022-08-19 深圳市语辰翻译有限公司 Image-text design preparation is with adsorbing from arrangement formula intermittent type transport equipment of tailorring
CN114918986B (en) * 2022-05-23 2024-01-23 深圳市语辰翻译有限公司 Adsorption self-arrangement intermittent conveying cutting equipment for graphic design and manufacture

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