JP2020131714A - 低振動シリンダ - Google Patents
低振動シリンダ Download PDFInfo
- Publication number
- JP2020131714A JP2020131714A JP2020026047A JP2020026047A JP2020131714A JP 2020131714 A JP2020131714 A JP 2020131714A JP 2020026047 A JP2020026047 A JP 2020026047A JP 2020026047 A JP2020026047 A JP 2020026047A JP 2020131714 A JP2020131714 A JP 2020131714A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- layer
- range
- compressible
- hollow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Landscapes
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Abstract
Description
フレキソ印刷は、印刷版の凸部から基材上へ可動性の高い印刷インキを移す、レタープレス印刷プロセスである。フレキソ印刷の特徴は、多種の基材(紙、段ボール、フィルム)の印刷を可能にする、柔軟な印刷版の使用である。オフセット印刷およびグラビア印刷に加えて、フレキソ印刷は、包装業界で最も重要な印刷プロセスの1つである。
少なくとも1つの中空シリンダの用途のためにセットアップされたまたは適したシリンダであって、このシリンダは層構造を有しており、この層構造は、内側から外側へと、ベース層またはシリンダコア、第1の圧縮性層、充填層、中間層、第2の圧縮性層、および外層、の順番で層を有しており、外層は、シリンダの外周面を形成する、シリンダが提案される。
シリンダの構成では、ベース層が、シリンダを内部に対して閉じている。ベース層はシリンダに安定性を提供し、層システムのさらなる層の適用のためのベースを成す。シリンダが中実のシリンダである場合は、ベース層の代わりにシリンダコアが使用される。
シリンダが、中実シリンダとして構成されている場合は、シリンダコアは、シリンダの層構造の別の層のためのベースを形成する。シリンダコアは、中実の形態で具現化されていてもよく、または選択的にキャビティを有していてもよい。
シリンダ内の圧縮性層により、シリンダは、シリンダに作用する圧縮力を吸収することができる。圧縮性層は付加的に、シリンダ振動における減衰作用を有する。第1の圧縮性層は、特に、下にある層の部分上の膨張を補償するのに役立つ。
シリンダの充填層は、シリンダの外径を指定された値に合わせて調整するために使用することができる。大きなシリンダ直径が求められる場合、それに応じて充填層の厚さを増加させることができ、逆に小さなシリンダ直径が必要な場合は充填層の厚さを減少させることができる。
外層は、シリンダを外部に対して閉じていて、別のシリンダをその上に保持できる表面を提供する。外層の表面は、粗い構造または滑らかな構造を有していてよく、好適には中空シリンダを容易にスライドさせることができるように、極めて滑らかである。外層は好適には、寸法的に安定的である、または硬質である。
シリンダの層構造の個々の層は、好適には互いに直接隣接している。選択的な可能性は、層間の接着を改善するために2つの層の間に接着促進剤または接着剤を配置することである。
A(t)=A0e−dt
によって、記述されてよく、この場合、A0は時点t=0における振動の振幅であり、dは減衰定数である。この場合、シリンダは好適には、減衰定数dが0.15<d<0.95の値を有するように、構成されている。
振り子式衝撃試験
図2を参照して説明された測定装置100を使用する測定のために、アダプタスリーブとして構成された中空シリンダが、取付けスチールシリンダの上に係合される。測定センサ102は、アダプタスリーブの長さの1/4のところで、12時のところに、すなわち上面に固定されている。3時のところで、すなわち、測定センサ102に対して90°ずらされて、同じ長さ位置でハンマ104によって衝撃が加えられる。この衝撃が測定に影響を与える。ハンマ104は質量390gであり、支点からの長さは245mmである。シリンダ10に所定の衝撃を加えるために、ハンマ104は、30°振られて、放される。ハンマ104の頭部は、硬質プラスチックから成るので、測定中のシリンダ10は破損しない。
A(t)=A0e−dt
は、カーブフィッティングにより測定値自体に適合されている。この場合、振幅A0は、時点t=0における最大加速度である。減衰定数dは、指数関数がどの程度速く減衰するかを決定し、dが大きくなるほど指数関数はより速く減衰する。A0が小さいほど、そして指数関数の減衰が速いほど、シリンダにおける減衰は大きくなる。
付加的に、製造されたシリンダは印刷機で試用され、印刷された印刷画像が評価された。これらの試用のために使用された印刷機は、コロナ処理を含むSoma Optima 2(Soma spol. sr.o.社)であって、これは厚さ1.12mmのFlexcell NX印刷プレート(Kodak社)、およびFlexPrint MVマゼンタインク(Flint Group社)、20μmの厚さおよび1300mmの幅を有するBOPPを備える。印刷速度375m/分および500m/分において印刷結果を評価した。この場合、印刷結果は全体的に良好であり、付加的に、ウェブ中央とウェブ縁との間に生じる差はごく僅かなはずである。振動が大きいシリンダの場合は、中央と縁との間に大きな差が認められている。結果は、良好な場合(振動が殆どない場合)は+、不良な場合は−、中間の場合は0として評価される。
12 ベース層
14 第1の圧縮性層
16 充填層
18 中間層
20 第2の圧縮性層
22 外層
100 測定装置
102 測定センサ
104 ハンマ
106 測定ユニット
Claims (17)
- 少なくとも1つの中空シリンダの用途のために形成されたシリンダ(10)であって、前記シリンダ(10)は層構造を有しており、前記層構造は、内側から外側へと、
ベース層(12)またはシリンダコア、
第1の圧縮性層(14)、
充填層(16)、
中間層(18)、
第2の圧縮性層(20)、および
外層(22)、
の順番で層を有しており、前記外層(22)は、前記シリンダ(10)の外周面を形成する、シリンダ(10)。 - 前記シリンダ(10)は、少なくとも1つの別の中間層を有しており、前記少なくとも1つの別の中間層は、前記第1の圧縮性層(14)と前記充填層(16)との間に、かつ/または前記第2の圧縮性層(20)と前記外層(22)との間に配置されている、請求項1記載のシリンダ(10)。
- 前記シリンダ(10)は、前記シリンダの内部に配置されている少なくとも1つの通路を備え、前記通路は、前記シリンダ(10)の前記外周面上の開口に、かつ/または前記シリンダ(10)の端面上の開口または接続部に連通している、かつ/または、前記シリンダ(10)が、ベース層(12)を有する中空シリンダとして設計されている場合には、前記中空シリンダの内面または端面の開口と連通している、請求項1または2記載のシリンダ(10)。
- 前記少なくとも1つの通路は、前記充填層(16)に配置されている、請求項3記載のシリンダ(10)。
- 前記ベース層(12)、前記中間層(18)、および/または前記少なくとも1つの別の中間層の材料は、繊維強化プラスチックである、請求項1から4までのいずれか1項記載のシリンダ(10)。
- 前記ベース層(12)、前記中間層(18)、および/または前記少なくとも1つの別の中間層は、0.5mm〜5mmの範囲の厚さを有する、請求項1から5までのいずれか1項記載のシリンダ(10)。
- 前記第1の圧縮性層(14)および/または前記第2の圧縮性層(20)は、0.1mm〜10mmの範囲の厚さを有する、請求項1から6までのいずれか1項記載のシリンダ(10)。
- 前記ベース層(12)、前記中間層、および前記外層(22)の厚さの合計と、前記両圧縮性層(14,20)の厚さの合計との比は、0.01〜400の範囲にある、請求項1から7までのいずれか1項記載のシリンダ(10)。
- 前記第1の圧縮性層(14)の厚さと、前記第2の圧縮性層(20)の厚さとの比は、0.1〜10の範囲にある、請求項1から8までのいずれか1項記載のシリンダ(10)。
- 前記充填層(16)は、1mm〜200mmの範囲の厚さを有する、請求項1から9までのいずれか1項記載のシリンダ(10)。
- 前記外層(22)は、0.1mm〜50mmの範囲の厚さを有する、請求項1から10までのいずれか1項記載のシリンダ(10)。
- 質量390g、支点からの長さ245mm、および30°の振れ角を有する試験用ハンマ(104)による刺激が与えられた場合、前記シリンダ(10)の振動は、最大で、3m/s2の加速度値を有する、請求項1から11までのいずれか1項記載のシリンダ(10)。
- 前記シリンダ(10)の振動は、指数関数的に減衰し、この場合、減衰定数dは、0.15<d<0.95の値を有する、請求項1から12までのいずれか1項記載のシリンダ(10)。
- 前記シリンダ(10)は、印刷版胴として構成されている、請求項1から13までのいずれか1項記載のシリンダ(10)。
- 前記シリンダは、アダプタスリーブまたは印刷スリーブとして構成されており、したがって前記シリンダは中空シリンダであって、この場合、前記ベース層は、前記中空シリンダを閉じる内面を有する、請求項1から13までのいずれか1項記載のシリンダ(10)。
- 請求項15記載の中空シリンダと、前記中空シリンダの前記外周面上に配置される少なくとも1つの別の中空シリンダとを備え、かつ/または請求項14記載の印刷版胴、または中空シリンダの内部に配置される請求項15記載の別の中空シリンダを備える装置。
- 中空シリンダとして構成される印刷スリーブが、請求項14または15記載のシリンダ(10)の前記外周面上に、または請求項16による装置の最も外側のシリンダ(10)の外周面上に、配置されていることを特徴とする装置。
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EP1047562A1 (en) | 1998-01-15 | 2000-11-02 | Day International Inc. | Replaceable sleeve |
US6276271B1 (en) * | 2000-03-17 | 2001-08-21 | Day International, Inc. | Bridge mandrel for flexographic printing systems |
US6703095B2 (en) | 2002-02-19 | 2004-03-09 | Day International, Inc. | Thin-walled reinforced sleeve with integral compressible layer |
US20050277062A1 (en) | 2004-05-07 | 2005-12-15 | Mclean Michael E | Method of making a photopolymer sleeve blank having an integral UV transparent cushion layer for flexographic printing |
US8505451B2 (en) | 2004-05-07 | 2013-08-13 | Day International, Inc. | Method of making a photopolymer sleeve blank having an integral cushion layer for flexographic printing |
US9409385B2 (en) | 2006-05-08 | 2016-08-09 | Day International, Inc. | Intermediate sleeve |
LU91741B1 (de) | 2010-09-24 | 2012-03-26 | Euro Composites | Mehrschichtige expandierbare Hülse für einen Druckmaschinenzylinder insbesondere für Flexodruck |
ES2623301T3 (es) | 2012-10-24 | 2017-07-10 | Day International, Inc. | Manguito de impresión que incluye una capa de refuerzo de cable polimérica que puede fundirse |
US20160121598A1 (en) * | 2013-05-29 | 2016-05-05 | Hewlett-Packard Development Company, L.P. | Multilayer roller |
DE102014220850A1 (de) | 2014-10-15 | 2016-04-21 | Contitech Elastomer-Beschichtungen Gmbh | Druckhülse und Verfahren zur Herstellung einer Druckhülse |
GB2544785A (en) | 2015-11-26 | 2017-05-31 | Sandon Global Engraving Tech Ltd | A sleeve for a bridge mandrel, and a bridge mandrel and sleeve assembly |
PL3243660T3 (pl) | 2016-05-09 | 2019-03-29 | Flint Group Germany Gmbh | Cylinder z częściowo gazoprzepuszczalną powierzchnią |
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2019
- 2019-02-20 ES ES19158348T patent/ES2919561T3/es active Active
- 2019-02-20 EP EP19158348.3A patent/EP3698969B1/de active Active
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2020
- 2020-02-17 CN CN202010096130.5A patent/CN111591010B/zh active Active
- 2020-02-18 BR BR102020003393-0A patent/BR102020003393A2/pt unknown
- 2020-02-18 US US16/793,625 patent/US11890857B2/en active Active
- 2020-02-19 JP JP2020026047A patent/JP7436233B2/ja active Active
- 2020-02-19 MX MX2020001940A patent/MX2020001940A/es unknown
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Publication number | Publication date |
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US20200262193A1 (en) | 2020-08-20 |
RU2020108069A (ru) | 2021-08-26 |
EP3698969A1 (de) | 2020-08-26 |
JP7436233B2 (ja) | 2024-02-21 |
US11890857B2 (en) | 2024-02-06 |
ES2919561T3 (es) | 2022-07-27 |
CN111591010A (zh) | 2020-08-28 |
EP3698969B1 (de) | 2022-04-20 |
BR102020003393A2 (pt) | 2021-02-23 |
MX2020001940A (es) | 2020-11-06 |
CN111591010B (zh) | 2024-02-06 |
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