JP3808256B2 - Packaging roll installation device for intermittent packaging machines - Google Patents

Packaging roll installation device for intermittent packaging machines Download PDF

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JP3808256B2
JP3808256B2 JP29534699A JP29534699A JP3808256B2 JP 3808256 B2 JP3808256 B2 JP 3808256B2 JP 29534699 A JP29534699 A JP 29534699A JP 29534699 A JP29534699 A JP 29534699A JP 3808256 B2 JP3808256 B2 JP 3808256B2
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packaging material
reel
material roll
rotating shaft
packaging
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JP29534699A
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JP2001114455A (en
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登 松本
真了 椎村
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Tokyo Automatic Machinery Works Ltd
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Tokyo Automatic Machinery Works Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、例えば縦形製袋充填機等の間欠包装機における包材ロール装着装置に関する。
【0002】
【従来の技術】
この種の包材ロール装着装置はその一例が実開昭62-150443号公報に開示されており、この公知の包材ロール装着装置は所定の制動力を付与可能な回転軸と、この回転軸に一体的に回転すべく支持され、包材ロールが取り外し可能にして装着されるリールを備えている。リールはその軸線方向に分割され、回転軸と一体に回転可能な一対のリール半体からなり、各リール半体は包材ロールの芯管(紙管)内に嵌入される装着軸部を有し、そして、装着軸部に対する包材ロールの滑りを防止する滑止め機構を備えている。
【0003】
より詳しくは、滑止め機構は装着軸部の外周面から突没可能な複数の掛止爪(掛止片)からなり、これら掛止爪はばねの付勢力を受けて突出したとき、包材の繰り出しに伴う包材ロールの回転の方向(繰出し回転方向)と同一の向きから包材ロールにおける芯管の内周面に突き当たり、包材ロールの繰出し回転方向に関しては装着軸部、つまり、リール半体と包材ロールとを一体的に結合し、包材ロールの滑りを防止する。したがって、各掛止爪が突出状態にあるときには、包材ロールは回転軸に付与された制動力を受けることになり、包材ロールからはその制動力に抗して包材が繰り出されることで、包材に一定の張力を付与することができる。
【0004】
【発明が解決しようとする課題】
ところで、上述した公知の包材ロール装着装置の場合、掛止爪は包材ロールの繰出し回転方向に関してのみ包材ロールとリールとを一体的に結合し、その繰出し回転方向とは逆向の回転方向には(巻取り回転方向)に関しては包材ロールの回転を許容するものとなっている。このことは、包材ロールの芯管内にリール半体の装着軸部に嵌入する際や芯管から装着軸部を引き抜く際、装着軸部内にそのばね付勢力に抗して掛止爪を没入させるために必要不可欠であり、これにより、リールへの包材ロールの脱着が可能となる。
【0005】
しかしながら、間欠包装機は物品を間欠的に包装するものであるため、包材ロールからの包材の繰出しも間欠的に停止される。このような包材の繰出し停止時、包材ロールの慣性モーメントに対して回転軸の制動力が強すぎると、各掛止爪は包材ロールの芯管からの反動力を受けて、その没入方向に沈み込み、芯管の内周面に対してスリップし易い。このような掛止爪のスリップは各掛止爪の先端を摩耗させるから、包材の繰出し時、包材ロールとリール半体との間の結合が不安定となり、包材の安定した繰出しを維持できない不具合がある。
【0006】
また、包材ロールの慣性モーメントはその包材の巻き残量により変化するため、この変化に応じて回転軸の制動力を調整することも考えられるが、この場合には包材ロール装着装置の構成が複雑になる。
本発明は上述の事情に基づいてなされたもので、その目的とするところは簡単な構成により、包材ロールの脱着を容易に行えかつ包材ロールとそのリールとの間の結合を安定して確保できる間欠包装機の包材ロール装着装置を提供することにある。
【0007】
【課題を解決するための手段】
上記の目的を達成する間欠包装機の包材ロール装着装置(請求項1)は、前述した従来の装置と同様にリールを一対のリール半体からなる分割型とし、各リール半体は装着軸部内にその横断面内にて回動自在に配置され、一端が装着軸部の外周面に対して突没可能な掛止部材と、掛止部材をその一端の突出方向に回動させる回動手段とを備え、そして、各リール半体の掛止部材はその一端に包材ロールにおける芯管の内周面に対して互いに逆向きの周方向から個々の歯先を突き当て可能な滑止め歯列を有している。
【0008】
上述の包材ロール装着装置によれば、リールに包材ロールが装着されると、各リール半体の掛止部材は回動手段により装着軸部から突出し、滑止め歯列は包材ロールにおける芯管の内周面に互いに逆向きの周方向からその個々の歯先が突き当たり、包材ロールの芯管に掛止状態となる。一方、芯管の内面に滑止め歯列が掛止されると、包材ロールは装着軸部に対して偏心するような力を受け、これにより、芯管はその直径方向でみて滑止め歯列とは反対側の内周面部分にて装着軸部に押し付けられることになり、装着軸部に対する芯管の掛止はより確実になる。
【0009】
このような状態にて、包材ロールから包材が繰り出されると、各リール半体もまた包材ロールと一体に回転し、そして、回転軸の制動力により繰り出された包材に所定の張力が付与される。
具体的には、回動手段は回転軸に設けられた受け部(請求項2)を備えており、この受け部が掛止部材と当接可能となっている。この場合、回転軸の回転を阻止した状態で、回転軸に対してリール半体が掛止部材を伴って、その周方向に回転されると、掛止部材は滑止め歯列とその回動中心との間にて回転軸の受け部に当接する。そして、リール半体の更なる回転を受け、掛止部材は受け部から回動力を受けて回動し、リール半体の装着軸部の外周から突出する。
【0010】
このように回動軸が回転軸の受け部のみから構成される場合、掛止部材の回動には回転軸に対するリール半体の回転が必要となるが、しかしながら、リール半体の回転を必要とすることなく、掛止部材を回動させることも可能である。
すなわち、この場合、回動手段は、回転軸の外周面に設けられたピボット軸受と、掛止部材に設けられ、その先端が前記ピボット軸受に対して進退可能な進退軸部材とから実現することができ(請求項3)、進退軸部材はその先端がピボット軸受に支持された状態で更に伸長し、掛止部材をその突出方向に回動させる。具体的には、進退軸部材にはねじ軸やソレノイドプランジャなどを使用できる。
【0011】
各リール半体は、回転軸の直径方向でみて掛止部材、すなわち、第1の掛止部材の滑止め歯列とは反対側に設けられた第2の滑止め歯列を更に含むことができる(請求項4)。
第2の滑止め歯列は芯管の内面に周方向から歯先が突き当たり、芯管を掛止する。具体的には、第2の滑止め歯列は装着軸部の外周面に直接に形成されるか、又は、装着軸部内に前記第1の掛止部材と同様な第2の掛止部材を回転軸に対して点対称に設けることでも得ることができる。この場合、第2の滑止め歯列は芯管の内周面に対し、前記第1の掛止部材の滑止め歯列と同様に同一の周方向から突き当たるのが好ましい。
【0012】
【発明の実施の形態】
図1を参照すると、間欠包装機の一例として縦形製袋充填包装機が示されている。この包装機にて、予備繰出しローラ2はその回転に伴い、包材ロールRから包材(例えばフィルムシート)Fを間欠的に繰り出し、繰り出された包材Fはダンサーロール等を経てフォーマ4を通過し、そして、製袋チューブ6に導かれる。フォーマ4を通過する際、包材Fは製袋チューブ6を包むような円筒状に成形され、この後、その両側縁が所定の形態の継ぎ目部分として重ね合わされた状態で、製袋チューブ6に沿って更に下方に間欠的に繰り出される。この間欠繰出しのために、製袋チューブ6の両側には無端状のサクションベルト8がそれぞれ配置されており(図1には一方のサクションベルト8のみを図示)、これらサクションベルト8はその走行に伴い、円筒状の包材Fを吸着しながら下方に間欠的に繰り出す。ここで、サクションベルト8による1回当たりの包材Fの繰出し長さは製袋すべき袋の長さに一致する。
【0013】
このようにして包材Fが間欠的に繰り出される際、包材Fの継ぎ目部分はセンタヒートシーラ10を通過し、このセンタヒートシーラ10は継ぎ目部分をヒートシール、すなわち、センタシールし、これにより、包材Fは完全な筒状に成形される。
この後、包材筒Tは間欠繰出しに伴い、製袋チューブ6の下端から抜け出し、そして、図示しない一対のフィンにより左右に拡げられた後、トップヒートシール12を通過する。包材筒Tが通過し、そして、その繰出しが停止すると、トップヒートシール12は包材筒Tをその横断方向にヒートトシール、すなわち、トップシールし、この後、そのトップシールのシール幅中央にて包材筒Tを切断し、個々の袋を成形する。
【0014】
ここで、包材筒Tのトップシール中にて、包材筒T内には製袋チューブ6を通じて製品(図示しない)が充填され、これにより、個々の袋はその内部に製品を収容した包装品Pとなる。なお、この後、包装品Pはシュートを介してコンベアに導かれ、このコンベアにより箱詰め機に向けて移送される。
上述した包装機は包材ロールRのための装着装置を備えており、装着装置の詳細は図2に示されている。
【0015】
図2の装着装置は回転軸14を備えており、回転軸14はその両端が支持ローラユニット16を介して左右の支持プレート18に回転自在に支持されている。より詳しくは、各支持ローラユニット16は3個のフリーローラ20からなり、これらフリーローラ20は支持プレート18の上端部にローラ軸を介して取り付けられている。そして、フリーローラ20は回転軸14の脱着を許容するスペースを確保した状態で回転軸14の周方向に配置されている。
【0016】
回転軸14の一端にはブレーキディスク22が取り付けられており、このブレーキディスク22の外周部にはその両側にブレーキパッド24がそれぞれ配置されている。これらブレーキパッド24は図示しない駆動機構によりブレーキディスク22を解放可能に挟み付け、ブレーキディスク22を介して回転軸14に所定の制動力を付与することができる。
【0017】
回転軸14にはリール26が設けられており、このリール26に包材ロールRが取外し可能に装着される。リール26は回転軸14の軸方向でみて互いに向き合う一対のリール半体28a,28bからなり、これらリール半体28a,28bは後述する点を除いて対称な構造を有している。それゆえ、以下には一方のリール半体28について、その構造を説明する。
【0018】
リール半体28は円盤状をなし、その外周には外側、つまり、回転軸14の端側に向けて突出するリング状のリム30を有する。リール半体28はその中央部にはハブ32が一体に形成されている。ハブ32はその中央に回転軸14を挿通可能とするセンタ孔34が形成され、回転軸14上でのリール半体28の移動を許容する。ハブ32はリム30とは反対側の部分が他方に比べて大きく突出し、この部分が包材ロールRのための装着軸部36として形成されている。したがって、装着軸部36は包材ロールRにおける紙製の芯管Sの内径とほぼ同一の外径を有し、その芯管S内に嵌入可能となっている。
【0019】
ハブ32には装着軸部36とは反対側の端に回転軸14を囲む割りカラー38が取り付けられており、この割カラー38は締付けレバー40の回動操作により、締付けねじを介して回転軸14に締付けることができ、また、逆にその締付けを解除することができる。したがって、リール半体28は回転軸14上の任意の位置にて固定でき、そして、回転軸14と一体に回転できる。
【0020】
ハブ32の装着軸部36にはその外周の一部に横断溝42が形成されており、この横断溝42は回転軸14の外周を部分的に露出させている。横断溝42内には図3に示すように板状の掛止部材44が回転軸14の軸線を横切るようにして収容され、この掛止部材44の基端は回動軸、すなわち、取付ねじ46に支持されている。この取付ねじ46は装着軸部36の一端面から掛止部材44の基端を貫通し、装着軸部36にねじ込まれている。したがって、掛止部材44は取付ねじ46を中心として回動自在であり、この回動により、掛止部材44の先端は装着軸部36の外周に対して突没可能である。
【0021】
掛止部材44の先端は円弧形状をなし、装着軸部36の外周から突出したとき、芯管Sの内周面に密着することができる。更に、掛止部材44の先端には滑止め歯列48が形成されており、この滑止め歯列48の個々の歯は装着軸部36の周方向に並んでいる。したがって、掛止部材44は装着軸部36から突出したとき、その滑止め歯列48における個々の歯を芯管Sの内周面に突き当てることができる。
【0022】
ここで、包材Fの繰出しに伴う包材ロールRの回転方向、つまり、繰出し回転方向をCとしたとき、一方のリール半体28a内の掛止部材44は突出時、その滑止め歯列48の個々の歯が図3に示すように繰出し回転方向Cと同一方向から芯管Sの内周面に突き当たる。これに対し、他方のリール半体28b内の掛止部材44にあっては、突出時、その滑止め歯列48の個々の歯は図4に示すように繰出し回転方向Cとは逆向きの方向から芯管Sの内周面に突き当たる。すなわち、図3及び図4を比較すれば明らかなように、リール半体28a,28bの掛止部材44は回転軸14を挟んで対称に配置されている。
【0023】
更に、掛止部材44の滑止め歯列48が芯管Sの内周面に突き当たると、芯管Sは装着軸部36に対して偏心するような力を受け、これにより、図3及び図4に示すように芯管Sはその直径方向でみて滑止め歯列48とは反対側の内周面部分が装着軸部36の外周面に押し付けられることになる。なお、図3及び図4中、芯管Sと装着軸部36との間のギャップは誇張して示してある。
【0024】
滑止め歯列48を突没させるべく掛止部材44を回動させるため、回転軸14には平坦面50が形成されている。この平坦面50は前述した横断溝42内に突出する回転軸14の一部を切欠くようにして形成され、そして、図1から明らかなように前述した左右の支持ローラユニット16間に亘って延びている。なお、平坦面50の両端部にはリール半体28a,28bの位置決めに使用される目盛り(図示しない)が設けられている。
【0025】
次に、図5〜図7を追加し、リール26に対する包材ロールRの装着や掛止部材44の回動手順を順に説明する。
先ず、回転軸14の他端側から割カラー38を緩めた状態のリール半体28aをはめ込み、そして、回転軸14に沿って移動させる。この後、回転軸14の他端側から包材ロールR、そして、その割カラー38を緩めた状態のリール半体28bを順次はめ込み、リール半体28a,28bの装着軸部36を包材ロールRの芯管S内に嵌入させ、包材ロールRをリール半体28a,28b間に挟み付ける。このとき、各リール半体28は平坦面50が上方を向いた回転軸14に対し、装着軸部36の横断溝42の底が図5に示すように回転軸14の平坦面50と面一となるような回転角位置にある。したがって、装着軸部36内の掛止部材44はその自重により取付ねじ46を中心として下方に回動し、その滑止め歯列48が装着軸部36内に没入した状態にある。したがって、包材ロールRの芯管S内に装着軸部36を嵌入する際、図6から明らかなように掛止部材44が芯管Sと干渉することはない。
【0026】
この後、回転軸14の回転を阻止した状態で、リール半体28、すなわち、その装着軸部36を一方向に回転させると、この回転に伴い、図7に示すように掛止部材44は回転軸14における平坦面50の一側縁(受け部)に当接する。この後、装着軸部36を更に回転させると、掛止部材44は平坦面50の一側縁から回動力を受けることで、取付ねじ46を中心として回動し、その滑止め歯列48が装着軸部36の外周から突出し、個々の歯先が芯管Sの内周面に突き当たって食い込み、芯管Sを掛止する。
【0027】
ここで、図3,4から明らかなように芯管Sを掛止するためのリール半体28a,28bの回転方向は互いに逆向きとなる。なお、図から明らかなように掛止部材44の基端は横断溝42の底に面する側の側縁が斜めに切り取られ、掛止部材44の回動時、その基端が横断溝42の底と干渉しないようになっている。
この後、包材ールRを装着したリール26は回転軸14に沿って移動されて所定位置に位置付けられ、この位置にて、各リール半体28の締付けレバー40を回動操作し、その割カラー38を回転軸14に締付け、各リール半体28、つまり、リール26を回転軸14上にて固定する。なお、回転軸14上でのリール26の位置決めには平坦面50に設けた目盛りが使用される。
【0028】
このようにして各リール半体28が固定されると、各リール半体28と回転軸14とは一体に回転されるので、回転軸14に対するリール半体28の回転角位置にずれが生じることはなく、したがって、その掛止部材44の滑止め歯列48は芯管Sの内周面に食い込んだ状態に維持される。
この後、包材ロールRを装着したリール26は図1に示すように、その回転軸14の両端が左右の支持プレート18の支持ローラユニット16に回転自在に支持され、この状態にて、包材ロールRから包材Fを繰り出すことができる。
【0029】
なお、包材ロールRにて包材Fの残量が無くなると、前述した包材ロールRの装着手順を逆に行うことで、リール26から芯管Sを取り外すことができる。
包材Fの間欠繰出しに伴い、包材ロールRがその繰出し回転方向Cに回転しようとすると、その芯管Sの内周面には前述したように一方のリール半体28aにおける掛止部材44の滑止め歯列48が食い込んでおり、しかも、包材ロールRの繰出し回転は掛止部材44にその滑止め歯列48が更に食い込むような方向への回動力を発生させるので(図3参照)、芯管Sはリール半体28aと一体的に回転する。ここで、リール半体28a,28bは共に回転軸14に固定された状態にあるから、リール半体28bもまた回転軸14を介してリール半体28aと一体に回転する。
【0030】
一方、回転軸14にはそのブレーキディスク22を介して制動された状態にあるので、包材Fは回転軸14の制動力に抗して繰り出されることになり、包材Fに所定の張力を付与することができる。
包材Fの間欠繰出しが停止されたときにはリール26もまた回転軸14の制動力を受けて、その回転が停止されるが、この際、包材ロールRが反動により繰出し回転方向Cとは逆向きに回転しようとしても、その逆回転は他方の側のリール半体28bの掛止部材44により阻止される。すなわち、リール半体28bにおいては、その掛止部材44の滑止め歯列48が芯管Sの内周面に対し、繰出し回転方向とは逆方向から食い込んでいるので(図4参照)、この食い込みにより、リール半体28b、つまり、リール26の逆回転は確実に阻止される。したがって、包材Fの間欠繰出しが繰り返されても、各リール半体28の掛止部材44が没入して芯管Sの内周面にてスリップするようなことはなく、この結果、滑止め歯列48における個々の歯先の摩耗を確実に防止でき、リールの26の耐久性を大幅に向上することができる。
【0031】
掛止部材44の回動は回転軸14に対し、そのリール半体28を回転させることで可能であるから、掛止部材44のための特別な回動機構を必要とせず、簡単の構成にて、リール26に対する包材ロールRの装着や、取外しを容易に行うことができる。
本発明は上述の実施の形態に制約されるものではなく、種々の変形が可能である。
【0032】
例えば、各リール半体28にあっては、図8に示すように装着軸部36の直径方向でみて、掛止部材44の滑止め歯列48が食い込む位置とは反対側に位置した装着軸部36の外周面部分に滑止め歯列48と同様な滑止め歯列52を形成することもできる。この場合、掛止部材44の滑止め歯列48が芯管Sの内周面に食い込むと、前述したように芯管Sはその直径方向でみて、その反対側の内周面部分が装着軸部36の外周面に密着するので、この際、滑り止め歯列52の個々の歯先が芯管Sの内周面に食い込み、この結果、リール半体28と包材ロールRとの結合をより強固にすることができ、滑止め歯列48の摩耗を更に低減することができる。
【0033】
図9を参照すると、リール半体28は回転軸14を挟んで点対称となる一対の掛止部材44を備えている。この場合、各掛止部材44の滑止め歯列48が芯管Sの内周面にそれぞれ食い込むことになるので、芯管Sはその直径方向でみて互いに反対向きに押圧されるので、回転軸14に対する芯管Sの同心性を維持可能となる。
【0034】
上述の実施の形態では、回転軸14に対しリール半体28を回転させることで、掛止部材44を回動させているが、掛止部材44をリニアアクチュエータにより回動させることも可能である。例えば、図10に示すように掛止部材44内に進退ねじ54がねじ込まれており、この進退ねじ54はその先端が回転軸14側に突出し、回転軸14の外周面に形成したピポット軸受56に当接可能となっている。このピボット軸受56は横断面でみて円弧状をなす溝から形成され、この溝は前述した平坦面50と同様に回転軸14の軸方向に延びている。図10に示す状態から、進退ねじ54が更に回転軸14側に突出されると、掛止部材44は回転軸14からの反力を受けて回動し、その滑止め歯列48を芯管Sの内周面に突き当てることができる。
【0035】
なお、リール半体28の外側から進退ねじ54の回転操作を可能とするため、図11に示すようにリール半体28のハブ32は分割構造をなし、ハブ32の外周面には横断溝42に連通する開口58が形成されており、この開口58を通じて進退ねじ54にアクセスすることができる。
更に、図12に示すように進退ねじ54の代わりにソレノイドプランジャ60を使用することもでき、この場合にはハブ32の開口58は不要となる。
【0036】
更にまた、図13に示すように掛止部材44はその先端に、滑止め歯列48に加えて複数の食い込み歯62を有することができる。滑止め歯列48は芯管Sの周方向の滑りを防止するのに対し、食い込み歯62は芯管Sの軸方向の滑りを防止する。
【0037】
【発明の効果】
以上説明したように間欠包装機の包材ロール装着装置(請求項1)によれば、各リール半体にて、その掛止部材の滑止め歯列を包材ロールの芯管の内周面にその周方向でみて互いに逆向きの方向から突き当てるだけの簡単な構成により、各リール半体と包材ロールとの間の結合を強固にできる。したがって、リールに対する包材ロールの装着を容易に行えるばかりでなく、芯管と滑止め歯列と間のスリップによる滑止め歯列の摩耗を低減でき、リールの耐久性を向上できる。
【0038】
回転軸に掛止部材の受け部を設けたものにあっては(請求項2)、回転軸に対してリール半体を回転させるだけで、掛止部材をその突出方向に回動させることができる。
また、掛止部材に進退軸部材が設けたものにあっては(請求項3)、回転軸に対しリール半体を回転させることなく、掛止部材の回動が可能となる。
【0039】
更に、リール半体の装着軸部に第2の滑止め歯列が設けられていると(請求項4)、リール半体と包材ロールとの間の結合をより強固にできる。
【図面の簡単な説明】
【図1】縦形製袋充填包装機の概略斜視図である。
【図2】図1の包装機に適用される包材ロール装着装置の縦断面図である。
【図3】図2中、III-III線に沿う断面図である。
【図4】図2中、IV-IV線に沿う断面図である。
【図5】回転軸にリール半体がはめ込まれた状態を示す横断面図である。
【図6】包材ロールの芯管にリール半体の装着軸部が嵌入された状態を示す横断面図である。
【図7】装着軸部の外周から掛止部材の滑止め歯列が突出し、芯管の内周面に突き当たった状態を示す横断面図である。
【図8】変形例のリール半体を示す横断面図である。
【図9】変形例のリール半体を示す横断面図である。
【図10】変形例のリール半体を示す横断面図である。
【図11】図10のリール半体の縦断面図である。
【図12】変形例のリール半体を示す横断面図である。
【図13】変形例の掛止部材の一部を示す斜視図である。
【符号の説明】
14 回転軸
26 リール
28a,28b リール半体
44 掛止部材
48 滑止め歯列
50 平坦面
52 (第2)滑止め歯列
54 進退ねじ
60 ソレノイドプランジャ
62 食い込み歯
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging material roll mounting device in an intermittent packaging machine such as a vertical bag making and filling machine.
[0002]
[Prior art]
An example of this type of packaging material roll mounting device is disclosed in Japanese Utility Model Laid-Open No. 62-150443. This known packaging material roll mounting device includes a rotating shaft capable of applying a predetermined braking force, and the rotating shaft. And a reel on which the packaging material roll is detachably mounted. The reel is divided in the axial direction and consists of a pair of reel halves that can rotate integrally with the rotating shaft. Each reel half has a mounting shaft portion that is fitted into the core tube (paper tube) of the packaging material roll. And a non-slip mechanism for preventing slipping of the packaging material roll with respect to the mounting shaft portion.
[0003]
More specifically, the non-slip mechanism is composed of a plurality of latching claws (latching pieces) that can project and retract from the outer peripheral surface of the mounting shaft portion. When these latching claws project under the urging force of a spring, the packaging material From the same direction as the direction of rotation of the packaging material roll (feeding rotation direction) with the unwinding of the packaging material roll, and hits the inner peripheral surface of the core tube in the packaging material roll. The half body and the packaging material roll are integrally coupled to prevent the packaging material roll from slipping. Therefore, when each latching claw is in the protruding state, the packaging material roll receives a braking force applied to the rotating shaft, and the packaging material is fed out from the packaging material roll against the braking force. A certain tension can be applied to the packaging material.
[0004]
[Problems to be solved by the invention]
By the way, in the case of the known packaging material roll mounting device described above, the latching claw integrally couples the packaging material roll and the reel only with respect to the feeding roll rotation direction, and the rotation direction opposite to the feeding rotation direction. As for (winding rotation direction), the packaging material roll is allowed to rotate. This means that when the reel half mounting shaft is inserted into the core tube of the packaging material roll or when the mounting shaft is pulled out of the core tube, the latching claw is immersed in the mounting shaft against the spring biasing force. It is indispensable to make it possible to remove the packaging roll from the reel.
[0005]
However, since the intermittent packaging machine wraps articles intermittently, the feeding of the packaging material from the packaging material roll is also intermittently stopped. When stopping the feeding of the packaging material, if the braking force of the rotating shaft is too strong against the inertia moment of the packaging material roll, each latching claw receives the reaction force from the core tube of the packaging material roll and It sinks in the direction and easily slips against the inner peripheral surface of the core tube. Such slippage of the pawls wears the tips of the pawls, so that when the packaging material is fed out, the coupling between the packaging material roll and the reel half is unstable, and the packaging material is fed out stably. There is a bug that cannot be maintained.
[0006]
In addition, since the moment of inertia of the packaging material roll changes depending on the remaining amount of winding of the packaging material, it may be possible to adjust the braking force of the rotating shaft in accordance with this change. The configuration becomes complicated.
The present invention has been made on the basis of the above-mentioned circumstances. The purpose of the present invention is to simplify the detachment of the packaging material roll and to stabilize the coupling between the packaging material roll and its reel. It is providing the packaging material roll mounting apparatus of the intermittent packaging machine which can be ensured.
[0007]
[Means for Solving the Problems]
A packaging material roll mounting device for an intermittent packaging machine that achieves the above object (Claim 1) is a split type consisting of a pair of reel halves as in the conventional device described above, and each reel half is a mounting shaft. A latching member that is pivotably disposed within the cross section within its cross section and whose one end can project and retract with respect to the outer peripheral surface of the mounting shaft, and a pivot that rotates the latching member in the protruding direction of the one end And the latch member of each reel half is a non-slip capable of abutting each tooth tip from the circumferential direction opposite to the inner peripheral surface of the core tube in the packaging roll at one end thereof It has a dentition.
[0008]
According to the packaging material roll mounting device described above, when the packaging material roll is mounted on the reel, the latching member of each reel half projects from the mounting shaft portion by the rotating means, and the anti-slip dentition is in the packaging material roll. The individual tooth tips abut against the inner peripheral surface of the core tube from opposite circumferential directions, and are hooked to the core tube of the packaging material roll. On the other hand, when the non-slip tooth row is hooked on the inner surface of the core tube, the wrapping material roll receives a force that is eccentric with respect to the mounting shaft portion. The inner peripheral surface portion on the opposite side of the row is pressed against the mounting shaft portion, so that the core tube is more reliably locked to the mounting shaft portion.
[0009]
In such a state, when the packaging material is fed out from the packaging material roll, each reel half also rotates integrally with the packaging material roll, and a predetermined tension is applied to the packaging material fed out by the braking force of the rotating shaft. Is granted.
Specifically, the rotating means includes a receiving portion (Claim 2) provided on the rotating shaft, and this receiving portion can come into contact with the latching member. In this case, when the reel half is rotated in the circumferential direction with the latching member with respect to the rotation shaft in a state in which the rotation of the rotation shaft is prevented, the latching member is turned to the non-slip tooth row and its rotation. It abuts against the receiving part of the rotating shaft between the center. Then, upon further rotation of the reel half, the latching member is rotated by receiving rotational force from the receiving portion, and protrudes from the outer periphery of the mounting shaft portion of the reel half.
[0010]
Thus, when the rotation shaft is composed only of the receiving portion of the rotation shaft, the rotation of the latch member requires the rotation of the reel half with respect to the rotation shaft. However, the rotation of the reel half is necessary. Without stopping, it is also possible to rotate the latching member.
That is, in this case, the rotating means is realized by a pivot bearing provided on the outer peripheral surface of the rotating shaft and an advancing / retracting shaft member provided on the latching member, the tip of which can be advanced and retracted with respect to the pivot bearing. (Claim 3), the advancing / retracting shaft member is further extended with its tip supported by the pivot bearing, and rotates the latching member in the protruding direction. Specifically, a screw shaft, a solenoid plunger, or the like can be used as the advance / retreat shaft member.
[0011]
Each of the reel halves further includes a latch member, that is, a second non-slip tooth row provided on the opposite side of the non-slip tooth row of the first latch member when viewed in the diameter direction of the rotation shaft. (Claim 4).
In the second non-slip tooth row, the tooth tip abuts against the inner surface of the core tube from the circumferential direction, and the core tube is hooked. Specifically, the second non-slip tooth row is formed directly on the outer peripheral surface of the mounting shaft portion, or a second hooking member similar to the first hooking member is provided in the mounting shaft portion. It can also be obtained by providing point symmetry with respect to the rotation axis. In this case, it is preferable that the second non-slip tooth row abuts against the inner peripheral surface of the core tube from the same circumferential direction as the non-slip tooth row of the first latching member.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIG. 1, a vertical bag filling and packaging machine is shown as an example of an intermittent packaging machine. In this packaging machine, the pre-feeding roller 2 intermittently feeds a packaging material (for example, a film sheet) F from the packaging material roll R along with its rotation. Passed and guided to the bag making tube 6. When passing through the former 4, the packaging material F is formed into a cylindrical shape so as to wrap the bag-making tube 6, and then the both-side edges are overlapped as a seam portion of a predetermined form to the bag-making tube 6. It is intermittently drawn further downward along. For this intermittent feeding, endless suction belts 8 are respectively arranged on both sides of the bag-making tube 6 (only one suction belt 8 is shown in FIG. 1), and these suction belts 8 are used for their running. Along with this, the cylindrical packaging material F is intermittently delivered downward while adsorbing. Here, the feeding length of the packaging material F per one time by the suction belt 8 coincides with the length of the bag to be made.
[0013]
In this way, when the packaging material F is intermittently fed out, the joint portion of the packaging material F passes through the center heat sealer 10, and the center heat sealer 10 heat seals, that is, the center seal of the joint portion. The packaging material F is formed into a complete cylinder.
Thereafter, the packaging cylinder T is pulled out from the lower end of the bag-making tube 6 along with intermittent feeding, and is expanded left and right by a pair of fins (not shown), and then passes through the top heat seal 12. When the packaging cylinder T passes and the feeding stops, the top heat seal 12 heat-seals the packaging cylinder T in the transverse direction, that is, top seals, and then the center of the seal width of the top seal. The packaging tube T is cut at 1 to form individual bags.
[0014]
Here, in the top seal of the packaging cylinder T, the packaging cylinder T is filled with a product (not shown) through the bag-making tube 6, whereby each bag has a packaging in which the product is accommodated. Product P. After that, the packaged product P is guided to a conveyor through a chute and is transferred toward the boxing machine by this conveyor.
The packaging machine described above includes a mounting device for the packaging material roll R, and details of the mounting device are shown in FIG.
[0015]
The mounting apparatus of FIG. 2 includes a rotating shaft 14, and both ends of the rotating shaft 14 are rotatably supported by left and right support plates 18 via support roller units 16. More specifically, each support roller unit 16 includes three free rollers 20, and these free rollers 20 are attached to the upper end portion of the support plate 18 via a roller shaft. And the free roller 20 is arrange | positioned in the circumferential direction of the rotating shaft 14 in the state which ensured the space which accept | permits removal | desorption of the rotating shaft 14. As shown in FIG.
[0016]
A brake disk 22 is attached to one end of the rotating shaft 14, and brake pads 24 are arranged on both sides of the outer periphery of the brake disk 22. The brake pads 24 can releasably hold the brake disc 22 by a drive mechanism (not shown), and can apply a predetermined braking force to the rotary shaft 14 via the brake disc 22.
[0017]
A reel 26 is provided on the rotary shaft 14, and the packaging material roll R is detachably mounted on the reel 26. The reel 26 includes a pair of reel halves 28a and 28b facing each other when viewed in the axial direction of the rotary shaft 14, and the reel halves 28a and 28b have a symmetric structure except for the points described below. Therefore, the structure of one reel half 28 will be described below.
[0018]
The reel half body 28 has a disk shape, and has a ring-shaped rim 30 that protrudes toward the outer side, that is, toward the end side of the rotary shaft 14 on the outer periphery thereof. A hub 32 is integrally formed at the center of the reel half 28. The hub 32 is formed with a center hole 34 through which the rotary shaft 14 can be inserted, and allows the reel half body 28 to move on the rotary shaft 14. In the hub 32, a portion on the opposite side to the rim 30 protrudes larger than the other, and this portion is formed as a mounting shaft portion 36 for the packaging material roll R. Therefore, the mounting shaft portion 36 has an outer diameter substantially the same as the inner diameter of the paper core tube S in the packaging material roll R, and can be fitted into the core tube S.
[0019]
A split collar 38 surrounding the rotary shaft 14 is attached to the hub 32 at an end opposite to the mounting shaft portion 36, and the split collar 38 is rotated by a tightening lever 40 through a tightening screw. 14 can be tightened, and conversely, the tightening can be released. Accordingly, the reel half 28 can be fixed at an arbitrary position on the rotary shaft 14 and can rotate integrally with the rotary shaft 14.
[0020]
A transverse groove 42 is formed in a part of the outer periphery of the mounting shaft portion 36 of the hub 32, and the transverse groove 42 partially exposes the outer periphery of the rotating shaft 14. As shown in FIG. 3, a plate-like latching member 44 is accommodated in the transverse groove 42 so as to cross the axis of the rotary shaft 14, and the base end of the latching member 44 is a rotating shaft, that is, a mounting screw. 46 is supported. The mounting screw 46 passes through the base end of the latch member 44 from one end surface of the mounting shaft portion 36 and is screwed into the mounting shaft portion 36. Therefore, the latching member 44 is rotatable about the mounting screw 46, and the tip of the latching member 44 can project and retract with respect to the outer periphery of the mounting shaft portion 36 by this rotation.
[0021]
The front end of the latching member 44 has an arc shape and can be brought into close contact with the inner peripheral surface of the core tube S when protruding from the outer periphery of the mounting shaft portion 36. Further, a non-slip tooth row 48 is formed at the tip of the latch member 44, and individual teeth of the non-slip tooth row 48 are arranged in the circumferential direction of the mounting shaft portion 36. Therefore, when the latch member 44 protrudes from the mounting shaft portion 36, the individual teeth in the non-slip tooth row 48 can abut against the inner peripheral surface of the core tube S.
[0022]
Here, when the rotation direction of the packaging material roll R associated with the feeding of the packaging material F, that is, the feeding rotation direction is C, when the latching member 44 in one reel half 28a protrudes, its non-slip dentition As shown in FIG. 3, 48 individual teeth abut against the inner peripheral surface of the core tube S from the same direction as the feeding rotation direction C. On the other hand, in the latching member 44 in the other reel half 28b, when protruding, the individual teeth of the non-slip tooth row 48 are opposite to the feeding rotation direction C as shown in FIG. It strikes the inner peripheral surface of the core tube S from the direction. That is, as is clear from a comparison between FIGS. 3 and 4, the latch members 44 of the reel halves 28a and 28b are arranged symmetrically with the rotating shaft 14 in between.
[0023]
Further, when the non-slip tooth row 48 of the latch member 44 abuts against the inner peripheral surface of the core tube S, the core tube S receives a force that is eccentric with respect to the mounting shaft portion 36, thereby causing FIG. 3 and FIG. As shown in FIG. 4, the inner peripheral surface portion of the core tube S opposite to the anti-slip tooth row 48 is pressed against the outer peripheral surface of the mounting shaft portion 36 in the diameter direction. 3 and 4, the gap between the core tube S and the mounting shaft portion 36 is exaggerated.
[0024]
A flat surface 50 is formed on the rotary shaft 14 in order to rotate the latch member 44 so as to project and retract the anti-slip tooth row 48. The flat surface 50 is formed so as to cut out a part of the rotary shaft 14 protruding into the transverse groove 42 described above, and extends between the left and right support roller units 16 as apparent from FIG. It extends. At both ends of the flat surface 50, scales (not shown) used for positioning the reel halves 28a and 28b are provided.
[0025]
Next, FIG. 5 to FIG. 7 will be added, and the procedure for attaching the packaging material roll R to the reel 26 and rotating the latch member 44 will be described in order.
First, the reel half body 28 a in a state where the split collar 38 is loosened is fitted from the other end side of the rotating shaft 14, and then moved along the rotating shaft 14. Thereafter, the packaging material roll R and the reel half body 28b in which the split collar 38 is loosened are sequentially fitted from the other end side of the rotating shaft 14, and the mounting shaft portion 36 of the reel half bodies 28a and 28b is fitted to the packaging material roll. It is inserted into the core tube S of R, and the packaging material roll R is sandwiched between the reel halves 28a and 28b. At this time, each reel half 28 is flush with the rotary shaft 14 with the flat surface 50 facing upward, and the bottom of the transverse groove 42 of the mounting shaft portion 36 is flush with the flat surface 50 of the rotary shaft 14 as shown in FIG. The rotation angle position is such that Therefore, the latching member 44 in the mounting shaft portion 36 is rotated downward about the mounting screw 46 by its own weight, and the anti-slip tooth row 48 is in a state of being immersed in the mounting shaft portion 36. Therefore, when the mounting shaft portion 36 is fitted into the core tube S of the packaging material roll R, the latch member 44 does not interfere with the core tube S as is apparent from FIG.
[0026]
Thereafter, when the reel half 28, that is, the mounting shaft portion 36 is rotated in one direction in a state in which the rotation of the rotating shaft 14 is prevented, the latching member 44 is moved along with this rotation as shown in FIG. It abuts on one side edge (receiving part) of the flat surface 50 of the rotating shaft 14. Thereafter, when the mounting shaft portion 36 is further rotated, the latching member 44 receives turning force from one side edge of the flat surface 50 and rotates around the mounting screw 46, so that the non-slip tooth row 48 is rotated. Projecting from the outer periphery of the mounting shaft portion 36, the individual tooth tips abut against the inner peripheral surface of the core tube S and bite the core tube S.
[0027]
Here, as apparent from FIGS. 3 and 4, the rotation directions of the reel halves 28a and 28b for hooking the core tube S are opposite to each other. As is apparent from the figure, the base end of the latching member 44 is cut off obliquely at the side edge facing the bottom of the transverse groove 42, and when the latching member 44 is rotated, the base end thereof is the transverse groove 42. It does not interfere with the bottom of the.
Thereafter, the reel 26 with the packaging material R mounted thereon is moved along the rotary shaft 14 and positioned at a predetermined position. At this position, the tightening lever 40 of each reel half body 28 is rotated, The split collar 38 is fastened to the rotating shaft 14, and each reel half 28, that is, the reel 26 is fixed on the rotating shaft 14. A scale provided on the flat surface 50 is used for positioning the reel 26 on the rotary shaft 14.
[0028]
When the reel halves 28 are fixed in this manner, the reel halves 28 and the rotation shaft 14 are rotated together, and therefore the rotational angle position of the reel halves 28 with respect to the rotation shaft 14 is shifted. Therefore, the non-slip tooth row 48 of the hooking member 44 is maintained in a state of being bitten into the inner peripheral surface of the core tube S.
Thereafter, as shown in FIG. 1, the reel 26 equipped with the packaging material roll R is rotatably supported by the support roller unit 16 of the left and right support plates 18 at both ends of the rotating shaft 14. The packaging material F can be fed out from the material roll R.
[0029]
When the packaging material roll R has no remaining amount of packaging material F, the core tube S can be removed from the reel 26 by reversing the mounting procedure of the packaging material roll R described above.
When the packaging material roll R tries to rotate in the feeding rotation direction C with the intermittent delivery of the packaging material F, the retaining member 44 in one reel half 28a is formed on the inner peripheral surface of the core tube S as described above. Further, the non-slip tooth row 48 bites in, and the rotation of the packaging material roll R causes the latch member 44 to generate a turning force in the direction in which the non-slip tooth row 48 further bites (see FIG. 3). ), The core tube S rotates integrally with the reel half 28a. Here, since the reel halves 28 a and 28 b are both fixed to the rotating shaft 14, the reel half 28 b also rotates integrally with the reel half 28 a via the rotating shaft 14.
[0030]
On the other hand, since the rotating shaft 14 is braked via the brake disk 22, the packaging material F is fed out against the braking force of the rotating shaft 14, and a predetermined tension is applied to the packaging material F. Can be granted.
When the intermittent delivery of the packaging material F is stopped, the reel 26 also receives the braking force of the rotating shaft 14 and stops its rotation. At this time, the packaging material roll R is counteracted with the feeding rotation direction C due to the reaction. Even if it tries to rotate in the direction, the reverse rotation is prevented by the latching member 44 of the reel half 28b on the other side. That is, in the reel half 28b, the non-slip tooth row 48 of the latch member 44 bites into the inner peripheral surface of the core tube S from the direction opposite to the feeding rotation direction (see FIG. 4). By biting in, the reverse rotation of the reel half 28b, that is, the reel 26 is surely prevented. Therefore, even if the intermittent delivery of the packaging material F is repeated, the latching member 44 of each reel half 28 is not immersed and slips on the inner peripheral surface of the core tube S. Wear of individual tooth tips in the tooth row 48 can be reliably prevented, and the durability of the reel 26 can be greatly improved.
[0031]
Since the latch member 44 can be rotated by rotating the reel half 28 with respect to the rotary shaft 14, a special rotation mechanism for the latch member 44 is not required, and the configuration is simple. Thus, the packaging material roll R can be easily attached to or removed from the reel 26.
The present invention is not limited to the above-described embodiments, and various modifications can be made.
[0032]
For example, in each reel half 28, as shown in FIG. 8, when viewed in the diameter direction of the mounting shaft portion 36, the mounting shaft is located on the opposite side of the position where the non-slip tooth row 48 of the latching member 44 bites. A non-slip tooth row 52 similar to the non-slip tooth row 48 may be formed on the outer peripheral surface portion of the portion 36. In this case, when the non-slip tooth row 48 of the latching member 44 bites into the inner peripheral surface of the core tube S, the inner peripheral surface portion on the opposite side of the core tube S is the mounting shaft as seen in the diameter direction as described above. At this time, the individual tooth tips of the anti-slip tooth row 52 bite into the inner peripheral surface of the core tube S, and as a result, the reel half 28 and the packaging material roll R are joined. It is possible to make it stronger and further reduce the wear of the non-slip tooth row 48.
[0033]
Referring to FIG. 9, the reel half 28 includes a pair of hooking members 44 that are point-symmetric with respect to the rotation shaft 14. In this case, since the non-slip tooth row 48 of each latching member 44 bites into the inner peripheral surface of the core tube S, the core tube S is pressed in directions opposite to each other when viewed in its diameter direction. The concentricity of the core tube S with respect to 14 can be maintained.
[0034]
In the above-described embodiment, the latch member 44 is rotated by rotating the reel half body 28 with respect to the rotating shaft 14, but the latch member 44 can also be rotated by a linear actuator. . For example, as shown in FIG. 10, a forward / backward screw 54 is screwed into the latch member 44, and the forward / backward screw 54 protrudes toward the rotary shaft 14, and a pivot bearing 56 formed on the outer peripheral surface of the rotary shaft 14. Can be contacted. The pivot bearing 56 is formed by a groove having an arc shape when viewed in cross section, and the groove extends in the axial direction of the rotary shaft 14 in the same manner as the flat surface 50 described above. When the advance / retreat screw 54 further protrudes toward the rotating shaft 14 from the state shown in FIG. 10, the latching member 44 is rotated by receiving the reaction force from the rotating shaft 14, and the non-slip tooth row 48 is connected to the core tube. It can abut against the inner peripheral surface of S.
[0035]
In order to allow the advance / retreat screw 54 to be rotated from the outside of the reel half 28, the hub 32 of the reel half 28 has a divided structure as shown in FIG. 11, and a transverse groove 42 is formed on the outer peripheral surface of the hub 32. An opening 58 is formed in communication with the forward / backward screw 54, and the advance / retreat screw 54 is accessible through the opening 58.
Further, as shown in FIG. 12, a solenoid plunger 60 can be used instead of the advance / retreat screw 54, and in this case, the opening 58 of the hub 32 is not necessary.
[0036]
Furthermore, as shown in FIG. 13, the latch member 44 can have a plurality of biting teeth 62 in addition to the anti-slip tooth row 48 at the tip thereof. The anti-slip tooth row 48 prevents slippage in the circumferential direction of the core tube S, while the biting tooth 62 prevents slippage in the axial direction of the core tube S.
[0037]
【The invention's effect】
As described above, according to the packaging material roll mounting device of the intermittent packaging machine (Claim 1), in each reel half, the non-slip dentition of the retaining member is used as the inner peripheral surface of the core tube of the packaging material roll. In addition, a simple configuration in which the reels butt against each other in the circumferential direction can strengthen the coupling between the reel halves and the packaging material roll. Therefore, not only can the packaging material roll be easily attached to the reel, but also the wear of the non-slip dentition due to slip between the core tube and the non-slip dentition can be reduced, and the durability of the reel can be improved.
[0038]
In the case where the receiving portion for the latching member is provided on the rotating shaft (Claim 2), the latching member can be rotated in the protruding direction only by rotating the reel half with respect to the rotating shaft. it can.
Further, if the latch member is provided with an advance / retreat shaft member (Claim 3), the latch member can be rotated without rotating the reel half with respect to the rotation shaft.
[0039]
Furthermore, when the second non-slip tooth row is provided on the mounting shaft portion of the reel half (Claim 4), the coupling between the reel half and the packaging material roll can be further strengthened.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a vertical bag making filling and packaging machine.
FIG. 2 is a longitudinal sectional view of a packaging material roll mounting device applied to the packaging machine of FIG.
3 is a cross-sectional view taken along line III-III in FIG.
4 is a cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is a cross-sectional view showing a state in which a half reel is fitted to a rotating shaft.
FIG. 6 is a cross-sectional view showing a state in which the mounting shaft portion of the reel half is fitted into the core tube of the packaging material roll.
FIG. 7 is a cross-sectional view showing a state in which a non-slip tooth row of a latching member protrudes from the outer periphery of a mounting shaft portion and abuts against an inner peripheral surface of a core tube.
FIG. 8 is a cross-sectional view showing a reel half of a modified example.
FIG. 9 is a transverse sectional view showing a reel half of a modified example.
FIG. 10 is a transverse sectional view showing a reel half of a modified example.
11 is a longitudinal sectional view of the reel half shown in FIG. 10;
FIG. 12 is a cross-sectional view showing a reel half of a modified example.
FIG. 13 is a perspective view showing a part of a latch member according to a modified example.
[Explanation of symbols]
14 Rotating shaft 26 Reel 28a, 28b Half reel 44 Latching member 48 Non-slip tooth row 50 Flat surface 52 (Second) Non-slip tooth row 54 Advance / Retreat screw 60 Solenoid plunger 62 Biting tooth

Claims (4)

回転自在に支持された回転軸と、
前記回転軸に設けられ、包材ロールが取外し可能に装着されるリールと、
前記回転軸に所定の制動力を付与する制動手段とを備えた間欠包装機の包材ロール装着装置において、
前記リールは、前記包材ロールの両側に分離して配置され、前記回転軸の軸方向に移動可能であるとともに前記回転軸と一体に回転可能な一対のリール半体からなり、
前記各リール半体は、前記包材ロールの芯管内に嵌入される装着軸部と、前記装着軸部内にその横断面内にて回動自在に配置され、一端が前記装着軸部の外周面に対して突没可能な掛止部材と、前記掛止部材を前記一端の突出方向に回動させる回動手段とを備え、
前記各リール半体の前記掛止部材は前記一端に前記芯管の内周面に対して互いに逆向きの周方向から個々の歯先を突き当て可能な滑止め歯列を有する
ことを特徴とする間欠包装機の包材ロール装着装置。
A rotating shaft supported rotatably,
A reel provided on the rotating shaft, to which a packaging material roll is detachably mounted;
In the packaging material roll mounting device of the intermittent packaging machine provided with braking means for applying a predetermined braking force to the rotating shaft,
The reel is disposed separately on both sides of the packaging material roll, and is composed of a pair of reel halves that are movable in the axial direction of the rotating shaft and rotatable integrally with the rotating shaft,
Each of the reel halves is disposed in a mounting shaft portion that is fitted into the core tube of the packaging material roll, and is rotatably disposed within the mounting shaft portion within a transverse section thereof, and one end is an outer peripheral surface of the mounting shaft portion. A latching member capable of projecting and retracting, and a rotating means for rotating the latching member in the protruding direction of the one end,
The latch member of each of the reel halves has a non-slip tooth row capable of abutting individual tooth tips from circumferential directions opposite to each other on the inner peripheral surface of the core tube at the one end. Packaging material roll mounting device for intermittent packaging machines.
前記回動手段は、前記回転軸に設けられ、前記掛止部材と当接可能な受け部を含み、
前記回転軸に対して前記リール半体が前記周方向に回転されたとき、前記掛止部材は前記受け部に当接し、前記突出方向に回動されることを特徴とする請求項1に記載の間欠包装機の包材ロール装着装置。
The rotating means includes a receiving portion provided on the rotating shaft and capable of coming into contact with the hooking member,
The said latching member contact | abuts to the said receiving part, and when the said reel half body is rotated to the said circumferential direction with respect to the said rotating shaft, It rotates to the said protrusion direction. Packaging material roll mounting device for intermittent packaging machines.
前記回動手段は、前記回転軸の外周面に設けられたピボット軸受と、前記掛止部材に設けられ、その先端が前記ピボット軸受に対して進退可能な進退軸部材とを含み、
前記進退軸部材は前記先端が前記ピボット軸受に支持された状態で更に伸長し、前記掛止部材を前記突出方向に回動させることを特徴とする請求項1に記載の間欠包装機の包材ロール装着装置。
The rotating means includes a pivot bearing provided on an outer peripheral surface of the rotating shaft, and an advancing / retracting shaft member provided at the latching member, the tip of which can be advanced / retracted with respect to the pivot bearing,
2. The packaging material for an intermittent packaging machine according to claim 1, wherein the advance / retreat shaft member further extends in a state where the tip is supported by the pivot bearing, and the latch member is rotated in the projecting direction. Roll mounting device.
前記各リール半体は、前記回転軸の直径方向でみて前記掛止部材の前記滑止め歯列とは反対側に設けられ、前記芯管の内面に個々の歯先を突き当て可能な第2の滑止め歯列を更に含むことを特徴とする請求項2又は3に記載の間欠包装機の包材ロール装着装置。Each of the reel halves is provided on a side opposite to the anti-slip tooth row of the hooking member when viewed in the diameter direction of the rotation shaft, and a second toothable end can be abutted against the inner surface of the core tube. The packaging material roll mounting device for an intermittent packaging machine according to claim 2, further comprising a non-slip dentition.
JP29534699A 1999-10-18 1999-10-18 Packaging roll installation device for intermittent packaging machines Expired - Fee Related JP3808256B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29534699A JP3808256B2 (en) 1999-10-18 1999-10-18 Packaging roll installation device for intermittent packaging machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29534699A JP3808256B2 (en) 1999-10-18 1999-10-18 Packaging roll installation device for intermittent packaging machines

Publications (2)

Publication Number Publication Date
JP2001114455A JP2001114455A (en) 2001-04-24
JP3808256B2 true JP3808256B2 (en) 2006-08-09

Family

ID=17819430

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3808256B2 (en)

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