JP4328081B2 - Standard cutting device for cylindrical labels for packaging - Google Patents

Standard cutting device for cylindrical labels for packaging Download PDF

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Publication number
JP4328081B2
JP4328081B2 JP2002325722A JP2002325722A JP4328081B2 JP 4328081 B2 JP4328081 B2 JP 4328081B2 JP 2002325722 A JP2002325722 A JP 2002325722A JP 2002325722 A JP2002325722 A JP 2002325722A JP 4328081 B2 JP4328081 B2 JP 4328081B2
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Japan
Prior art keywords
label
cylindrical
cylindrical label
cutting
feeding roller
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JP2002325722A
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JP2004160557A (en
Inventor
幹夫 内山
幸浩 小森
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Tahara Machinery Ltd
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Tahara Machinery Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、長尺状チューブをボトルや缶などの被包装体の外周面に装着する所定長さの包装用筒状ラベルに切断する包装用筒状ラベルの定尺切断装置に関し、特に、長尺状チューブの切断位置を検知する光センサーの位置を変更することなく所定長さの筒状ラベルに精度良く切断できる定尺切断装置に関する。
【0002】
【従来の技術】
一般に、ボトルや缶などの被包装体(以下、容器と云う)の外周面に包装用の筒状ラベルを装着して、商品名・商標の表示、色彩・模様による装飾、内容物の説明や保護等々が行われている。
【0003】
この包装用筒状ラベルには、熱収縮性合成樹脂フィルムを容器の外径より若干大きな内径にして筒状に形成したシュリンクラベルや自己収縮性合成樹脂フィルムを容器の外径より若干小さな内径にして筒状に形成したストレッチラベルなどがある。
【0004】
前者のシュリンクラベルの容器への装着は、このラベルを開口手段で開口しながら容器の外周面に被装した後、蒸気や熱風などで加熱して収縮させて容器の外周面に装着する方法や装置で行われ、また、後者のストレッチラベルの容器への装着は、このラベルを開口手段で開口し、さらにこれを拡径手段で拡径しながら容器に被装し、自己収縮性を利用して収縮させて容器の外周面に装着する方法や装置で行われる。
【0005】
このシュリンクラベルもストレッチラベルもほぼ同様の方法や装置で容器の外周面に装着されるが、一般的には、シュリンクラベルは、その筒状ラベルの周長が容器の周長より長くして成形されているので、筒状ラベルを吸引などの開口手段で外側から引張って膨出し、開口して容器に被装することができ、固定状態にしてある容器に筒状ラベルを力を要することなく挿入して被装・装着することが行われている。
【0006】
また、ストレッチラベルは、その筒状ラベルの周長が容器の周長より短くして成形されているので、筒状ラベルを吸引などの開口手段で外側から引張って膨出し、開口し、さらにラベル係止爪などを有する装着装置を用いて筒状ラベルを拡径して容器に装着することになり、筒状ラベルの弾力に負けない抗力で内側から押し広げた状態の筒状ラベルに容器を押し上げて挿入して被装・装着することが行われている。
【0007】
ここで、円筒状の容器への装着についてストレッチラベルを例示して説明する。
【0008】
合成樹脂フィルムから両側縁に折目を有する偏平な長尺状チューブを成形してロール状に巻回し、このロール状に巻回した長尺状チューブを、ゴムローラなどからなる支持装置を経て繰出ロールで間欠的に繰出し、その長尺状チューブを、切断装置のカッターで所定長さに切断して偏平な筒状ラベルに形成する。
【0009】
この偏平な筒状ラベルを、一対の吸引装置の吸盤で吸着し、一対の吸引装置の吸盤を相互に離反することによりほぼ楕円筒状に膨出されて開口した筒状ラベルを形成する。さらに、膨出されて開口された筒状ラベルを、筒状ラベルの下方に配置された筒状ラベルの装着装置に縮閉された状態で備えてあるラベル係止爪に挿入する。
【0010】
次いで、その装着装置のラベル係止爪を所定の形状に拡開させることで、筒状ラベルは、ほぼ楕円筒状から容器の外郭形状に合わせた形状例えばほぼ円筒状あるいはほぼ楕円筒状になるように押し広げられて拡径される。なお、筒状ラベルはその装着装置のラベル係止爪が挿入されていない例えば上方部分はほぼ原寸法のままである。また、吸引装置は筒状ラベルの吸着を停止すると後退して元の位置に復帰する。
【0011】
引続き、拡径された筒状ラベルに対し、容器が下方より昇降装置で持ち上げられ、拡径された筒状ラベルの内側に装着装置のラベル係止爪を介して挿入され、容器の外周面に筒状ラベルが被装される。
【0012】
その後、筒状ラベルが被装された容器は、筒状ラベルの外側から把持具で把持されて、筒状ラベル共々把持具で上昇されて装着装置のラベル係止爪から抜取られて容器の外周面に筒状ラベルが装着される。
【0013】
筒状ラベルが装着された容器は、把持具から開放されると昇降装置および搬送装置によって所定の位置に移送される。
【0014】
この長尺状チューブをカッターで所定長さに切断して偏平な筒状ラベルに形成する切断装置において、原反からガイドローラを経た長尺フィルムを切断する切断装置が、繰出ローラの下方に位置し、固定カッター刃とその固定カッター刃との協働により切断する回転カッター刃とからなり、ガイドローラの上方に設けられている、繰り出される長尺フィルムに印刷された切断すべく位置を示す所定のマークを検出するための検出センサーで、長尺フィルムの切断すべく所定のマークを検出し、その検出センサーの信号に基づいて切断装置および繰出用ローラが連動駆動するように制御されるものが知られている。
【0015】
【特許文献1】
特開平8−119234号公報(第2−5頁、図1、図2)
同様に、巻き出しロールによって引き出された原反のチューブが、巻き出しロールと送りローラの間に配置されている、製造年月日と賞味期限を印字する印字装置やチューブに適宜のミシン目を入れるミシン目装置を経て、続けて配設されている、チューブのピッチ毎に付けられているマークを検出するマーク検出器でマークを検出し、この検出のタイミングに応じて適宜のピッチ位置で切断装置により切断されるものも知られている。
【0016】
【特許文献2】
特開平11−236153号公報(第3−4頁、図1、図2)。
【0017】
【発明が解決しようとする課題】
ここで知られている切断装置は、いずれも、原反の長尺フィルムにある切断すべく位置を示す所定のマークを検出センサーで検出し、その検出センサーの発信する信号に基づいて切断装置および繰出用ローラを連動・駆動・制御させるものであり、原反の長尺フィルムにある切断すべく位置を示す所定のマークの位置が変更される、換言すれば所定ラベルの長さが変更されると、所定のマークを検出センサーで検出してから切断装置が駆動するまでの時間を変更する、あるいは検出センサーと切断装置までの距離を変更することになる。
【0018】
この結果、前者は切断工程のみならずラベル装着工程の全体時間が変わることになり、また後者はラベル装着工程を中断することになり、いずれも好ましいものではない。
【0019】
【課題を解決するための手段】
前記発明が解決しようとする課題を解決するためにこの発明にかかる包装用筒状ラベルの定尺切断装置は、両側縁に折目を有する偏平な長尺状チューブの内面の離間を助ける開口装置と、前記開口装置の下流側に配設されて、離間した前記長尺状チューブを間欠的に繰り出す繰出ローラと、該繰出ローラの下流側に配設されて、前記長尺状チューブの切断位置を示す検知マークを検知する光センサーと、該光センサーの下流側に配設されて、前記開口装置から進行する前記長尺状チューブに対しその進行方向と交差する方向に進退動するカッターを具備し、前記長尺状チューブを所望の長さに切断して筒状ラベルにする切断装置と、該光センサーからの信号に基づいて前記繰出ローラを回転させると共に、この繰出ローラに付帯したエンコーダから発生されるパルス信号を受けて、前記検知マークから切断位置までの長さを前記筒状ラベルの所定長さに合致させて予め設定した基準パルス信号に前記パルス信号が合致するまで前記繰出ローラの回転量を前記パルス信号で制御する制御手段と、切断する筒状ラベルの長さに合わせて前記カッターの下流側に位置して前記長尺状チューブの筒状ラベル部分をその切断の際に吸着する吸引装置とを有することを特徴としている。
【0020】
【発明の実施の形態】
以下、本発明の筒状ラベルの定尺切断装置の実施形態を図面に基づいて具体的に説明する。なお、本実施形態ではストレッチラベルに適用したものを示している。
【0021】
図1は、本発明の装置を用いて長尺状チューブTから筒状ラベルLを円筒状の容器Bに装着するまでの各工程を概念的に示すものである。
【0022】
合成樹脂フィルム(図示せず)から両側縁に折目を有する偏平な長尺状チューブTを形成してロール状に巻回(図示せず)し、この長尺状チューブTをロールからなる支持装置1および送りローラ22を通して繰出ローラ23で間欠的に繰り出しながら開口装置2の補助開口装置21を通過させて一次拡径して両側縁の折目部や偏平面部を離間させ、長尺状チューブTの切断位置を示す検知マークを光センサー242で検知し、検知された検知マークが切断装置24のカッター241の位置になるようにして繰出ロール23が一旦停止し、その長尺状チューブTの所定位置(検知マーク)を、切断装置24のカッター241で切断して所定長さの偏平な筒状ラベルLにする。この偏平な筒状ラベルLを、一対の吸引装置25の吸盤251で吸着し、続いて、この偏平な筒状ラベルLを、一対の吸引装置25の吸盤251を吸引装置25に備えてあるエアシリンダあるいは油圧シリンダ、またはサーボ電動機(いずれも図示せず)の駆動で相互に離反させて、ほぼ楕円筒状に膨出した開口を有する筒状ラベルLに形成し、この筒状ラベルLを次工程のラベル装着装置3に移送する。
【0023】
切断が終了すると一旦停止していた繰出ロール23が再び駆動し長尺状チューブTの繰り出しが行われる。
【0024】
この吸引装置25で膨出・開口状態に保持されている筒状ラベルLを、吸引装置25で膨出・開口状態に保持したまま、吸引装置25の下方に配置してある、ラベル装着装置3に備えた縮閉状態のラベル係止爪31に挿入する。
【0025】
次いで、吸引装置25で筒状ラベルLの膨出・開口状態を続けながら、ラベル装着装置3のラベル係止爪31を所定の形状に拡開させることにより、筒状ラベルLは、ほぼ楕円筒状に膨出した開口から容器の外郭形状とほぼ相似形をした開口例えばほぼ円筒状の開口あるいはほぼ楕円筒状の開口に押し広げられて拡径される。この吸引装置25による筒状ラベルLの膨出・開口は、ラベル装着装置3のラベル係止爪31による筒状ラベルLの拡径が開始されると終了する。
【0026】
なお、筒状ラベルLはラベル装着装置3のラベル係止爪31が挿入されていない、例えば、上方部分はほぼ原寸法のままである。また、吸引装置25は、筒状ラベルLの吸着を停止すると元の位置に復帰する。
【0027】
筒状ラベルLの拡径と同時に、ほぼ円筒状に拡径された開口の筒状ラベルLに、下方のラベル押え体5が横方向に移動して筒状ラベルLの下端部の外方を把持して筒状ラベルLがラベル係止爪31から脱落するのを防止した状態にする。この筒状ラベルLに対して、円筒状の容器Bが下方より昇降装置4で持ち上げられ、拡径された筒状ラベルLの開口内側にラベル装着装置3のラベル係止爪31を介して挿入されて、外周面に筒状ラベルLが被装された円筒状の容器Bが得られる。
【0028】
その後、筒状ラベルLが被装された円筒状の容器Bをラベル押え体5より開放すると共に、筒状ラベルLの外側から上方のラベル押え体6で把持し、続けて、筒状ラベルL・容器B共々ラベル押え体6と昇降装置4とを同調させて上昇させ、ラベル装着装置3のラベル係止爪31を筒状ラベルLの内側より抜き取り、円筒状の容器Bの外周面に筒状ラベルLを装着する。
【0029】
筒状ラベルLが装着された円筒状の容器Bは、ラベル押え体6が開放されると共に、昇降装置4および搬出装置(図示せず)によって所定の位置に送出される。
【0030】
本発明の筒状ラベルの定尺切断装置は、図2に示すように、両側縁に折目を有する偏平な長尺状チューブTを繰出ローラ23で間欠的に繰り出して所定長さに切断して筒状ラベルLにするに当たり、その長尺状チューブTの所定位置にある切断位置を示す検知マークを光センサー242で検知して、繰出ローラ23の回転量を制御して長尺状チューブLの切断位置を切断装置24に合致させて所定長さに切断するものである。即ち、この定尺切断装置は、両側縁に折目を有する偏平な長尺状チューブTの内面の離間を助けるほぼ三角形状(先鋭状)のマンドレル211、小型補助ローラ212と二枚の外反状のセパレータ213からなる補助開口装置21およびその補助開口装置21の小型補助ローラ212の外方に位置する送りローラ22からなる開口装置2と、その補助開口装置21の下方に位置する、長尺状チューブTを所定長さに切断して筒状ラベルLにするカッターを有する筒状ラベル用の切断装置24と、開口装置2と切断装置24との間に配列された電動機231で回動し、周速をコントロールできる繰出ローラ23と、その繰出ローラ23の電動機231に付帯してパルス信号(パルス数)を発生させるエンコーダ233と、発生するパルス信号(パルス数)を電圧などに変換するパルス変換器234と、前記長尺状チューブTの切断位置を示す検知マークを検知する光センサー242および光センサー242に付帯して信号を発生する信号発生手段(図示せず)と、信号発生手段からの信号に基づいて繰出ローラ23を回転させると共に、繰出ローラ23の回転量を前記パルス信号(パルス数)で制御するシーケンサー(制御手段)235と、シーケンサー(制御手段)からの指令信号によって電動機231を始動・停止させるなどの動作を行うコントローラ232とを備えている。なお、パルス信号(パルス数)は、変換器を通すことなく直接的にシーケンサー(制御手段)で受けてもよい。
【0031】
以上のように構成された筒状ラベルの定尺切断装置で、長尺状チューブTから所定の長さの包装用筒状ストレッチラベルLに切断する方法について図1〜図3に基づいて説明する。
【0032】
先ず、合成樹脂フィルムより形成され、ロール状体(図示せず)に巻回した両側縁に折目を有する偏平な長尺状チューブTを、支持装置1を通して垂下させ、その下方開口を補助開口装置21の三角形状マンドレル211を通過させて、その小型補助ローラ212と上方の送りローラ22とで長尺状チューブTを挟むようにし、小型補助ローラ212は長尺状チューブTの偏平な内面に接し、送りローラ22は長尺状チューブTの偏平な外面に接し、結果、補助開口装置21は長尺状チューブTの両側縁の折目とは離れた態様で長尺状チューブTに内在される。
【0033】
この長尺状チューブTには、図3に示すように、印刷部Pと印刷部Pとの間にある幅方向に帯状の無印刷のクリア部が所定間隔で配され、このクリア部が検知マークTMである。
【0034】
さらに垂下した長尺状チューブTは、三角形状のマンドレル211に設けてある切断装置24に向けて延び、かつ重ね合った端縁重合部(あるいは根本重合部)から外反状に形成した二枚のバネ板からなるセパレータ213を内在すると共に、長尺状チューブTは、偏平に折り合わされた状態で繰出ローラ23を回転駆動する電動機231により、矢印A方向に間欠的に繰り出し自在となる。
【0035】
繰り出された長尺状チューブTは、光センサー242で、長尺状チューブTに所定の等間隔を有して設けられた切断位置を示す検知マークTMを検出し、検知マークを検知した信号に基づいてエンコーダから発するパルス数をカウントし、予め設定された基準パルス数に達するまで電動機231が駆動して繰出ローラ23を回転させ、設定された基準パルス数に達すると、検知マークTMが切断装置24のカッター241の位置で停止し、その停止時に切断位置を示す検知マークTMの位置で切断装置24のカッター241の作動で切断されることにより、所定の長さの筒状ラベルLに形成される。
【0036】
シーケンサー235には、長尺状チューブTの切断位置を示す検知マークTMから切断装置24のカッター241までの長さ(図3のx値)に相当する設定されている基準パルス数Nが予め記憶されており、しかも、光センサー242における検知マークTMの検出時に、そのタイミング信号がシーケンサー235に入力される。
【0037】
また、繰出ローラ23に接続されたパルス信号発生手段としてのエンコーダー233よりの信号をシーケンサー235に入力して、検知マークTMを検出したタイミング信号からパルス数をカウントし、予め設定されたパルス数になるように電動機231を停止させる。
【0038】
その後、所定形状に形成された筒状ラベルLを吸引装置25の吸盤251で吸着して保持した状態で、吸引装置25に備えてあるエアシリンダあるいは油圧シリンダ、またはサーボ電動機(いずれも図示せず)を駆動して離反方向に移動させて、上下がフリーな端縁になった筒状ラベルLは、吸引装置25の操作が必要で、かつ充分の開口に膨出、あるいは任意の開口に膨出され、次工程の筒状ラベルの装着装置に移送される。
【0039】
引装置25は、図2示すように、セパレータ213の端部より所定距離だけ離れた位置で長尺状チューブTを切断装置24のカッター241で切断してなる筒状ラベルLを吸着して保持する。
【0040】
以上、本発明の筒状ラベルの定尺切断装置は、両側縁に折目を有する偏平な長尺状チューブを繰出ローラで間欠的に繰り出して所定長さに切断して筒状ラベルにするに当たり、その長尺状チューブの所定位置にある切断位置を示す検知マークを光センサーで検知して、繰出ローラの回転量を制御して長尺状チューブの切断位置を切断装置に合致させるものである。制御手段(シーケンサー)は、長尺状チューブの切断位置を示す検知マークから切断位置を示す長さに相当する設定されている基準パルス数が予め記憶されており、光センサーにおける検知マークの検出時に、そのタイミング信号が制御手段(シーケンサー)に入力され、その検出時のタイミング信号によって、繰出ローラ駆動用のモータの回転量がコントロールされ、両側縁に折目を有する偏平な長尺状チューブを所定長さの筒状ラベルに形成することができる。
【0041】
特に、光センサーと繰出ローラの電動機に付帯してパルス信号を発生させるエンコーダと制御手段などとを組み合わせることにより、精緻にコントロールできるので、寸法精度の良好な筒状ラベルに形成することができる。
【0042】
また、本発明の筒状ラベルの定尺切断装置は、長尺状チューブにその切断位置を示す印刷(有色)あるいは無印刷(無色)などの検知マークが設けてあれば、比較的幅の狭い長尺状チューブ(あるいは筒状ラベル)から比較的幅の広い長尺状チューブ(あるいは筒状ラベル)例えば折径が50mm〜250mmの長尺状チューブ(あるいは筒状ラベル)に適用できるものである。
【0043】
さらには、偏平で、容器の外径より若干小さな内径を有するストレッチラベルは無論のこと、偏平で、容器の外径より若干大きな内径を有するシュリンクラベルに適用できるものである。
【0044】
【発明の効果】
本発明の筒状ラベルの定尺切断装置によれば、筒状ラベルの長さを変更する場合には、制御手段に予め記憶させてある検知マークから切断位置までの長さに合致するパルス数を変更することにより機器類を停止させることなく、目的とする長さの筒状ラベルを形成することができる。
【0045】
また、光センサーと繰出ローラの電動機に付帯してパルス信号を発生させるエンコーダと制御手段などとを組み合わせることにより、繰り出される長尺状チューブにある切断位置を示す検知マークを次々に光センサーで検出し、それに基づいてパルス信号で繰出ローラの電動機をコントロールするので、常に切断する基準点(検知マーク)が更新(リセット)されることになり、寸法精度の良好な筒状ラベルに形成することができる。
【0046】
さらに、光センサーと繰出ローラの電動機に付帯してパルス信号を発生させるエンコーダと制御手段などとを組み合わせることにより、相互が協同して良好に機能し、繰出ローラを精緻に回動させて長尺状チューブの繰り出しミスやロスなどの発生を防止することができる。
【0047】
さらにまた、偏平で容器の外径より若干小さな内径を有するストレッチラベルは無論のこと、偏平で容器の外径より若干大きな内径を有するシュリンクラベルにも適用することができる。
【図面の簡単な説明】
【図1】本発明の定尺切断装置をストレッチラベルに適用して各工程を概念的に示す説明図である。
【図2】本発明の定尺切断装置を示す概略正面図である。
【図3】本発明の長尺状チューブおよび筒状ラベルを示す正面図である。
【符号の説明】
1…支持装置
2…開口装置
3…ラベル装着装置
4…昇降装置
21…補助開口装置
22…送りローラ
23…繰出ローラ
24…切断装置
25…吸引装置
211…マンドレル
212…小型補助ローラ
213…セパレータ
231…モータ
232…コントローラ
233…エンコーダ
234…変換器
235…シーケンサー
241…カッター
241…光センサ
251…吸盤
31…ラベル係止爪
T…長尺状チューブ
L…筒状ラベル
B…容器
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a constant length cutting device for a packaging cylindrical label that cuts a long tube into a packaging cylindrical label of a predetermined length that is mounted on the outer peripheral surface of a packaged body such as a bottle or a can. The present invention relates to a fixed length cutting device that can accurately cut a cylindrical label having a predetermined length without changing the position of an optical sensor that detects the cutting position of a long tube.
[0002]
[Prior art]
In general, a cylindrical label for packaging is attached to the outer peripheral surface of a packaged object (hereinafter referred to as a container) such as a bottle or a can, and a product name / trademark display, decoration by color / pattern, explanation of contents, Protection is done.
[0003]
For this packaging cylindrical label, a shrink label or self-shrinking synthetic resin film formed into a cylindrical shape with a heat-shrinkable synthetic resin film having an inner diameter slightly larger than the outer diameter of the container has an inner diameter slightly smaller than the outer diameter of the container. There is a stretch label formed in a cylindrical shape.
[0004]
The former shrink label can be attached to the container by placing the label on the outer peripheral surface of the container while opening the opening means, and then heating and shrinking it with steam or hot air to attach it to the outer peripheral surface of the container. In the latter case, the stretch label is attached to the container by opening the label with an opening means, and further covering the container while expanding the diameter with the diameter expanding means. This is performed by a method or apparatus that is contracted and mounted on the outer peripheral surface of the container.
[0005]
Both the shrink label and stretch label are attached to the outer peripheral surface of the container by almost the same method and apparatus. In general, however, the shrink label is formed by making the circumference of the cylindrical label longer than the circumference of the container. Therefore, the cylindrical label can be pulled out from the outside by an opening means such as suction and swelled, and can be opened to be attached to the container without applying force to the container in a fixed state. Inserting and mounting / wearing is performed.
[0006]
In addition, since the peripheral length of the cylindrical label is shorter than the peripheral length of the container, the stretch label is bulged by opening the cylindrical label from the outside by an opening means such as suction, and then opening the label. The cylindrical label is enlarged and attached to the container using a mounting device having a locking claw, etc., and the container is placed on the cylindrical label in a state where the cylindrical label is pushed and spread from the inside with a drag that does not lose the elasticity of the cylindrical label. It is carried out by pushing up and inserting it.
[0007]
Here, the attachment to the cylindrical container will be described by exemplifying a stretch label.
[0008]
A flat long tube having creases on both side edges is formed from a synthetic resin film and wound into a roll shape. The long tube wound in this roll shape is fed through a support device composed of a rubber roller or the like. The long tube is cut intermittently to a predetermined length with a cutter of a cutting device to form a flat cylindrical label.
[0009]
The flat cylindrical label is adsorbed by the suction cups of the pair of suction devices, and the suction cups of the pair of suction devices are separated from each other to form a cylindrical label that is bulged and opened in an approximately elliptical cylindrical shape. Further, the cylindrical label that is bulged and opened is inserted into a label locking claw that is provided in a state of being contracted and closed by a cylindrical label mounting device disposed below the cylindrical label.
[0010]
Next, the label locking claw of the mounting device is expanded to a predetermined shape, so that the cylindrical label changes from a substantially elliptical cylindrical shape to a contour shape of the container, for example, a substantially cylindrical shape or a substantially elliptical cylindrical shape. So that the diameter is expanded. For example, the upper part of the cylindrical label where the label locking claw of the mounting device is not inserted is substantially the same as the original size. Further, when the suction of the cylindrical label is stopped, the suction device moves backward and returns to the original position.
[0011]
Subsequently, the container is lifted from below by the lifting device with respect to the expanded cylindrical label, and is inserted inside the expanded cylindrical label via the label locking claw of the mounting device, and is attached to the outer peripheral surface of the container. A cylindrical label is mounted.
[0012]
After that, the container on which the cylindrical label is mounted is gripped by the gripping tool from the outside of the cylindrical label, lifted by the gripping tool together with the cylindrical label, and extracted from the label locking claw of the mounting device. A cylindrical label is attached to the surface.
[0013]
When the container with the cylindrical label is released from the gripping tool, it is transferred to a predetermined position by the lifting device and the transport device.
[0014]
In a cutting device that cuts this long tube into a predetermined length with a cutter to form a flat cylindrical label, the cutting device that cuts the long film from the original fabric through the guide roller is positioned below the feeding roller. And a fixed cutter blade and a rotary cutter blade that cuts in cooperation with the fixed cutter blade, and a predetermined position indicating a position to be cut printed on a fed long film provided above the guide roller. A detection sensor for detecting the mark of the sheet is a sensor that detects a predetermined mark for cutting a long film and is controlled so that the cutting device and the feeding roller are driven in conjunction with each other based on the signal of the detection sensor. Are known.
[0015]
[Patent Document 1]
JP-A-8-119234 (page 2-5, FIGS. 1 and 2)
Similarly, an appropriate perforation is formed on a printing apparatus or tube that prints the date of manufacture and expiration date, in which the original tube pulled out by the unwinding roll is arranged between the unwinding roll and the feed roller. The mark is detected by a mark detector that detects the marks attached at each tube pitch, and is cut at an appropriate pitch position according to the detection timing. Some that are cut by a device are also known.
[0016]
[Patent Document 2]
JP-A-11-236153 (page 3-4, FIGS. 1 and 2).
[0017]
[Problems to be solved by the invention]
All of the known cutting devices detect a predetermined mark indicating a position to be cut on a long film of the original fabric with a detection sensor, and based on a signal transmitted from the detection sensor, The feeding roller is interlocked, driven, and controlled, and the position of the predetermined mark indicating the position to be cut on the original long film is changed, in other words, the length of the predetermined label is changed. Then, the time from when the predetermined mark is detected by the detection sensor until the cutting device is driven is changed, or the distance between the detection sensor and the cutting device is changed.
[0018]
As a result, not only the cutting process but also the entire time of the label mounting process changes in the former, and the latter interrupts the label mounting process, which is not preferable.
[0019]
[Means for Solving the Problems]
In order to solve the problem to be solved by the present invention, a fixed length cutting device for a packaging cylindrical label according to the present invention is an opening device for helping the separation of the inner surface of a flat long tube having folds on both side edges. A feeding roller that is disposed downstream of the opening device and intermittently feeds the long tubes spaced apart from each other, and a cutting position of the long tube that is disposed downstream of the feeding roller. An optical sensor for detecting a detection mark indicating the position, and a cutter which is disposed downstream of the optical sensor and moves forward and backward in a direction crossing the traveling direction with respect to the elongated tube traveling from the opening device. and, a cutting device for a tubular label of the elongated tube is cut to the desired length, with rotating the feeding roller based on a signal from the light sensor, and attached to the feeding roller encoder The feeding roller receives the pulse signal generated from the detection mark until the length from the detection mark to the cutting position matches the predetermined length of the cylindrical label and the pulse signal matches a preset reference pulse signal. The control means for controlling the amount of rotation of the long tube by the pulse signal, and the cylindrical label portion of the long tube positioned at the downstream side of the cutter according to the length of the cylindrical label to be cut And a suction device for adsorption .
[0020]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a cylindrical label regular cutting apparatus according to the present invention will be specifically described below with reference to the drawings. In addition, in this embodiment, what was applied to the stretch label is shown.
[0021]
FIG. 1 conceptually shows each process from the long tube T to the mounting of the cylindrical label L on the cylindrical container B using the apparatus of the present invention.
[0022]
A flat long tube T having folds on both side edges is formed from a synthetic resin film (not shown) and wound into a roll (not shown), and the long tube T is supported by a roll. While being intermittently fed by the feeding roller 23 through the apparatus 1 and the feeding roller 22, the auxiliary opening device 21 of the opening device 2 is passed through and the primary diameter is expanded, and the folds and the flat portions on both side edges are separated to make a long shape. A detection mark indicating the cutting position of the tube T is detected by the optical sensor 242, and the feeding roll 23 is temporarily stopped so that the detected detection mark is positioned at the cutter 241 of the cutting device 24, and the long tube T The predetermined position (detection mark) is cut by the cutter 241 of the cutting device 24 to obtain a flat cylindrical label L having a predetermined length. The flat cylindrical label L is adsorbed by the suction cups 251 of the pair of suction devices 25, and then the flat cylindrical label L is air that is provided with the suction cups 251 of the pair of suction devices 25 in the suction device 25. The cylinder label L is separated from each other by driving a cylinder, a hydraulic cylinder, or a servo motor (both not shown), and is formed into a cylindrical label L having an opening that swells in a substantially elliptic cylindrical shape. Transfer to the label mounting apparatus 3 in the process.
[0023]
When the cutting is completed, the feeding roll 23 once stopped is driven again, and the long tube T is fed out.
[0024]
The label mounting device 3 is disposed below the suction device 25 while the cylindrical label L held in the bulging / opening state by the suction device 25 is held in the bulging / opening state by the suction device 25. Is inserted into the label locking claw 31 in the contracted state prepared in the above.
[0025]
Next, while the suction device 25 continues the bulging / opening state of the cylindrical label L, the label locking claw 31 of the label mounting device 3 is expanded to a predetermined shape, so that the cylindrical label L is substantially elliptical. The diameter is expanded by being pushed from a bulged opening to an opening substantially similar to the outer shape of the container, for example, a substantially cylindrical opening or a substantially elliptical cylindrical opening. The swelling / opening of the cylindrical label L by the suction device 25 is finished when the diameter expansion of the cylindrical label L by the label locking claw 31 of the label mounting device 3 is started.
[0026]
The cylindrical label L is not inserted with the label locking claw 31 of the label mounting device 3, for example, the upper portion remains substantially the original size. In addition, when the suction of the cylindrical label L is stopped, the suction device 25 returns to the original position.
[0027]
At the same time as the diameter expansion of the cylindrical label L, the lower label presser 5 moves laterally to the cylindrical label L having an opening that is expanded in a substantially cylindrical shape, so that the outer side of the lower end portion of the cylindrical label L is moved outward. The cylindrical label L is gripped to prevent it from falling off the label locking claw 31. With respect to this cylindrical label L, the cylindrical container B is lifted by the lifting device 4 from below and inserted into the opening inside the expanded cylindrical label L via the label locking claw 31 of the label mounting device 3. Thus, a cylindrical container B having a cylindrical label L mounted on the outer peripheral surface is obtained.
[0028]
Thereafter, the cylindrical container B on which the cylindrical label L is mounted is released from the label presser 5 and is gripped by the upper label presser 6 from the outside of the cylindrical label L. Subsequently, the cylindrical label L The label holder 6 and the lifting / lowering device 4 are lifted in synchronism with the container B, the label locking claw 31 of the label mounting device 3 is extracted from the inside of the cylindrical label L, and the cylinder is placed on the outer peripheral surface of the cylindrical container B. A label L is attached.
[0029]
The cylindrical container B on which the cylindrical label L is mounted is sent to a predetermined position by the lifting device 4 and the unloading device (not shown) while the label pressing body 6 is opened.
[0030]
As shown in FIG. 2, the cylindrical label fixed length cutting apparatus of the present invention intermittently feeds a flat long tube T having folds on both side edges with a feed roller 23 and cuts it to a predetermined length. When forming the cylindrical label L, the detection mark indicating the cutting position at the predetermined position of the long tube T is detected by the optical sensor 242, and the rotation amount of the feeding roller 23 is controlled to control the long tube L. The cutting position is matched with the cutting device 24 and cut to a predetermined length. In other words, this regular cutting device has a substantially triangular (sharp) mandrel 211, a small auxiliary roller 212, and two valgus pieces that help to separate the inner surface of a flat long tube T having folds on both side edges. The auxiliary opening device 21 formed of a separator 213 and the opening device 2 formed of a feed roller 22 positioned outside the small auxiliary roller 212 of the auxiliary opening device 21, and a long length positioned below the auxiliary opening device 21. It is rotated by a cylindrical label cutting device 24 having a cutter that cuts the tubular tube T into a predetermined length to form a cylindrical label L, and an electric motor 231 arranged between the opening device 2 and the cutting device 24. The feeding roller 23 that can control the peripheral speed, the encoder 233 that is attached to the electric motor 231 of the feeding roller 23 and generates a pulse signal (number of pulses), and the generated pulse signal ( A pulse converter 234 for converting the number of pulses) into a voltage, etc., a light sensor 242 for detecting a detection mark indicating the cutting position of the elongated tube T, and a signal generating means for generating a signal attached to the light sensor 242 ( And a sequencer (control means) 235 for rotating the feeding roller 23 based on a signal from the signal generating means and controlling the rotation amount of the feeding roller 23 by the pulse signal (number of pulses), and a sequencer ( And a controller 232 that performs operations such as starting and stopping the electric motor 231 according to a command signal from the control means). The pulse signal (number of pulses) may be received directly by a sequencer (control means) without passing through a converter.
[0031]
A method for cutting from a long tube T into a cylindrical stretch label L for packaging having a predetermined length with the fixed length cutting device for a cylindrical label configured as described above will be described with reference to FIGS. .
[0032]
First, a flat and long tube T formed from a synthetic resin film and having folds on both side edges wound around a roll-like body (not shown) is suspended through the support device 1 and its lower opening is an auxiliary opening. The long tube T is sandwiched between the small auxiliary roller 212 and the upper feed roller 22 through the triangular mandrel 211 of the apparatus 21, and the small auxiliary roller 212 is placed on the flat inner surface of the long tube T. The feed roller 22 is in contact with the flat outer surface of the long tube T, and as a result, the auxiliary opening device 21 is built in the long tube T in a manner away from the folds on both side edges of the long tube T. The
[0033]
As shown in FIG. 3, this long tube T is provided with strip-shaped non-printing clear portions in the width direction between the printing portions P and the printing portions P at predetermined intervals. Mark TM.
[0034]
Further, the elongated long tube T extends toward the cutting device 24 provided in the triangular mandrel 211, and is formed in a valgus shape from the overlapping edge overlapping portion (or the root overlapping portion). The long tube T can be intermittently drawn out in the direction of arrow A by an electric motor 231 that rotationally drives the feeding roller 23 in a state of being folded flatly.
[0035]
The extended long tube T is detected by the optical sensor 242 to detect a detection mark TM indicating a cutting position provided at a predetermined equal interval on the long tube T, and the detection mark TM is detected. Based on this, the number of pulses emitted from the encoder is counted, and the electric motor 231 is driven to rotate the feeding roller 23 until a preset reference pulse number is reached. When the preset reference pulse number is reached, the detection mark TM is cut. It is formed on the cylindrical label L having a predetermined length by stopping at the position of the 24 cutters 241 and cutting by the operation of the cutter 241 of the cutting device 24 at the position of the detection mark TM indicating the cutting position at the time of stopping. The
[0036]
In the sequencer 235, a preset reference pulse number N corresponding to the length from the detection mark TM indicating the cutting position of the long tube T to the cutter 241 of the cutting device 24 (x value in FIG. 3) is stored in advance. In addition, the timing signal is input to the sequencer 235 when the detection mark TM is detected by the optical sensor 242.
[0037]
Further, a signal from an encoder 233 connected to the feeding roller 23 as a pulse signal generating means is input to the sequencer 235, and the number of pulses is counted from the timing signal at which the detection mark TM is detected. Then, the electric motor 231 is stopped.
[0038]
Thereafter, in a state where the cylindrical label L formed in a predetermined shape is sucked and held by the suction cup 251 of the suction device 25, an air cylinder or a hydraulic cylinder provided in the suction device 25, or a servo motor (both not shown). ) Is moved in the direction of separation, and the cylindrical label L with the upper and lower free edges is required to operate the suction device 25 and swells to a sufficient opening or swells to an arbitrary opening. It is taken out and transferred to a cylindrical label mounting device in the next process.
[0039]
Aspirate device 25, as shown in FIG. 2, adsorb the cylindrical label formed by cut by a cutter 241 having a predetermined distance away cutting apparatus an elongate tube T at position 24 from the end portion L of the separator 213 that holds Te.
[0040]
As described above, the fixed length cutting device for a cylindrical label according to the present invention is adapted to intermittently feed a flat long tube having folds on both side edges with a feed roller and cut it to a predetermined length to form a cylindrical label. The detection mark indicating the cutting position at the predetermined position of the long tube is detected by an optical sensor, and the rotation amount of the feeding roller is controlled to match the cutting position of the long tube with the cutting device. . The control means (sequencer) stores in advance a set reference pulse number corresponding to the length indicating the cutting position from the detection mark indicating the cutting position of the long tube, and when the detection mark is detected by the optical sensor. The timing signal is input to the control means (sequencer), the amount of rotation of the driving roller driving motor is controlled by the timing signal at the time of detection, and a flat long tube having folds on both side edges is predetermined. It can be formed into a long cylindrical label.
[0041]
In particular, it is possible to form a cylindrical label with good dimensional accuracy because it can be precisely controlled by combining an encoder for generating a pulse signal attached to the motor of the optical sensor and the feeding roller and a control means.
[0042]
Moreover, the cylindrical label fixed length cutting device of the present invention has a relatively narrow width as long as detection marks such as printing (colored) or non-printing (colorless) indicating the cutting position are provided on the long tube. The present invention can be applied to a long tube (or cylindrical label) having a relatively wide width from a long tube (or cylindrical label), for example, a long tube (or cylindrical label) having a folding diameter of 50 mm to 250 mm. .
[0043]
Furthermore, a stretch label that is flat and has an inner diameter slightly smaller than the outer diameter of the container can of course be applied to a shrink label that is flat and has an inner diameter slightly larger than the outer diameter of the container.
[0044]
【The invention's effect】
According to the cylindrical label fixed length cutting device of the present invention, when changing the length of the cylindrical label, the number of pulses that matches the length from the detection mark stored in advance in the control means to the cutting position. By changing the above, it is possible to form a cylindrical label having a target length without stopping the devices.
[0045]
In addition, by combining an optical sensor and an encoder that generates a pulse signal attached to the electric motor of the feeding roller, and a control means, etc., detection marks indicating the cutting position in the extended long tube are successively detected by the optical sensor. Since the motor of the feeding roller is controlled based on the pulse signal based on this, the reference point (detection mark) to be cut is always updated (reset), and a cylindrical label with good dimensional accuracy can be formed. it can.
[0046]
Furthermore, by combining an encoder that generates a pulse signal attached to the motor of the optical sensor and the feeding roller, and a control means, etc., each other works well in cooperation, and the feeding roller is rotated precisely to make it long. It is possible to prevent occurrence of misfeed or loss of the tube-like tube.
[0047]
Furthermore, a stretch label having a flat inner diameter slightly smaller than the outer diameter of the container can of course be applied to a shrink label having a flat inner diameter slightly larger than the outer diameter of the container.
[Brief description of the drawings]
FIG. 1 is an explanatory view conceptually showing each step by applying a regular cutting device of the present invention to a stretch label.
FIG. 2 is a schematic front view showing a regular cutting device of the present invention.
FIG. 3 is a front view showing a long tube and a cylindrical label of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Support apparatus 2 ... Opening apparatus 3 ... Label mounting apparatus 4 ... Elevating / lowering apparatus 21 ... Auxiliary opening apparatus 22 ... Feed roller 23 ... Feeding roller 24 ... Cutting apparatus 25 ... Suction apparatus 211 ... Mandrel 212 ... Small auxiliary roller 213 ... Separator 231 ... Motor 232 ... Controller 233 ... Encoder 234 ... Converter 235 ... Sequencer 241 ... Cutter 241 ... Optical sensor 251 ... Suction cup 31 ... Label locking claw T ... Long tube L ... Cylindrical label B ... Container

Claims (1)

両側縁に折目を有する偏平な長尺状チューブの内面の離間を助ける開口装置と、
前記開口装置の下流側に配設されて、離間した前記長尺状チューブを間欠的に繰り出す繰出ローラと、
該繰出ローラの下流側に配設されて、前記長尺状チューブの切断位置を示す検知マークを検知する光センサーと、
該光センサーの下流側に配設されて、前記開口装置から進行する前記長尺状チューブに対しその進行方向と交差する方向に進退動するカッターを具備し前記長尺状チューブを所定長さに切断して筒状ラベルにする切断装置と
光センサーからの信号に基づいて前記繰出ローラを回転させると共に、この繰出ローラに付帯したエンコーダから発生されるパルス信号を受けて、前記検知マークから切断位置までの長さを前記筒状ラベルの所望の長さに合致させて予め設定させた基準パルス信号に前記パルス信号が合致するまで前記繰出ローラの回転量を前記パルス信号で制御する制御手段と
切断する筒状ラベルの長さに合わせて前記カッターの下流側に位置して前記長尺状チューブの筒状ラベル部分をその切断の際に吸着する吸引装置とを有する
ことを特徴とする包装用筒状ラベルの定尺切断装置。
An opening device for helping to separate the inner surface of a flat elongated tube having folds on both side edges;
A feeding roller that is disposed downstream of the opening device and intermittently feeds the long tubes spaced apart;
An optical sensor that is disposed on the downstream side of the feeding roller and detects a detection mark indicating a cutting position of the long tube;
Is disposed downstream of the light sensor, the elongated tube for a given length of the pre-Symbol elongate tube comprising a cutter that moves back and forth in a direction intersecting the traveling direction of traveling from the opening device A cutting device for cutting into a cylindrical label ;
With rotating the feeding roller based on a signal from the light sensor receives a pulse signal generated from the encoder which is attached to the feeding roller, the tubular label to a length of the cutting position from the detection mark Control means for controlling the amount of rotation of the feeding roller with the pulse signal until the pulse signal matches a reference pulse signal set in advance to match a desired length ;
A packaging device comprising: a suction device that is positioned on the downstream side of the cutter in accordance with the length of the cylindrical label to be cut and sucks the cylindrical label portion of the long tube at the time of cutting . Standard cutting device for cylindrical labels.
JP2002325722A 2002-11-08 2002-11-08 Standard cutting device for cylindrical labels for packaging Expired - Lifetime JP4328081B2 (en)

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Publication number Priority date Publication date Assignee Title
KR101027774B1 (en) 2011-01-27 2011-04-07 차상록 Tube separation device for drink case
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