JP3738387B2

JP3738387B2 - Ink supply apparatus and printing method

Info

Publication number: JP3738387B2
Application number: JP2002000418A
Authority: JP
Inventors: 謙二勝俣; 浩司岡村; 貴康石山; 啓和泉; 辰彦横地
Original assignee: 独立行政法人国立印刷局
Priority date: 2002-01-07
Filing date: 2002-01-07
Publication date: 2006-01-25
Anticipated expiration: 2022-01-07
Also published as: JP2003200556A

Description

【０００１】
【発明の属する技術分野】
本発明は、画像とその幅及び数に対応でき、それによって最適なインキ供給量の微量調整が可能な、互いに異なる幅を持つインキつぼキーを有するインキ供給装置及び該インキ供給装置を用いて高精度な印刷を行う印刷方法に関する。
【０００２】
【従来の技術】
一般に、印刷機におけるインキ供給装置は、図７及び図８に示すようにインキを供給するローラであるインキ元ローラ（７１）と、インキを溜めておきインキ元ローラ（７１）にインキを供給するインキつぼ（７２）とを設備している。インキつぼ（７２）は、インキ元ローラ（７１）の外周面と、インキつぼ（７２）の底部を形成する均等幅分割インキつぼキー（７３）と均等幅分割インキつぼキー（７３）の両側面に備えられ前端をインキ元ローラ（７１）の外周面に近接する２つ基準インキつぼキー（８３）と、基準インキつぼキー（８３）の側面とインキ元ローラ（７１）の端面に摺接している側板（８１）とから構成されており、均等幅分割インキつぼキー（７３）をインキ元ローラ（７１）にあてて溝を作り、ここに適量のインキを入れて、均等幅分割インキつぼキー（７３）とインキ元ローラ（７１）の間からインキ膜をインキ元ローラの回転で練り出し、その厚みを部分的に調整してインキ膜が形成される。
【０００３】
印刷は、被印刷物に対して設定された幅で行われるが、通常はその幅の各位置におけるインキ転写面積、即ち画像面積が異なるため、各位置において必要となるインキ量が異なっている。つまり、インキ元ローラ（７１）と均等幅分割インキつぼキー（７３）との間隔がインキ元ローラ（７１）の幅方向の各位置で同一であると、各位置で供給されるインキ量がほぼ同一となり、印刷した印刷用紙に濃い部分と薄い部分ができる。
【０００４】
均一な濃淡を求められる印刷物において、インキ出し量を微細に調整できる従来の均等幅分割インキつぼキー（８３）は、インキ元ローラ（７１）の軸方向に沿って複数個に細かく均等に分割されており、隣接する均等幅分割インキつぼキー（７３）及び両端の基準インキつぼキー（８３）と側板（８１）とは互いに摺接している。また、均等幅分割インキつぼキー（７３）ごとに分割インキつぼキー調整装置が設備されており、均等幅分割インキつぼキー（７３）とインキ元ローラ（７１）の間隔を独立して調整でき、インキ出し量を分割して制御するようになっている。
【０００５】
分割インキつぼキー調整装置は、各均等幅分割インキつぼキー（７３）をインキ元ローラ（７１）に対して前後進させる駆動部（７６）を備えており、前記駆動部（７６）は均等幅分割インキつぼキー（７３）の幅内に収まる大きさに形成されている。
【０００６】
【発明が解決しようとする課題】
しかしながら、複数の画像（８５ａ，８５ｂ，８５ｃ，８５ｄ）で印刷を行う場合、均等幅分割インキつぼキー（７３）がインキ元ローラ（７１）の軸方向に均等な幅を持つため、各画像に対応する均等幅分割インキつぼキー（７３）の位置が必然的に決定されてしまう。そのため、インキ供給量を調整したい幅が、均等幅分割インキつぼキー（７３）の幅と同じであり、かつ、インキ元ローラ（７１）に対する均等幅分割インキつぼキー（７３）の位置と一致していれば、何ら問題はないが、実際には図９に示すように設計によるインキ濃度に対応したインキ供給量の調整を行うことができない。
【０００７】
具体的には、図１０に示すようにインキ供給量を調整したい部分（１０１）が、２個の均等幅分割インキつぼキー（７３）の一部分ずつにまたがっている場合、適当なインキ供給量の調整を行うことが困難である。つまり、インキ供給量を調整したい部分（１０１）に対応する、隣接する２個の均等幅分割インキつぼキー（７３）を調整することによって、調整不必要な個所（１０２ａ，１０２ｂ）までインキ供給量が変化してしまう。
【０００８】
また、図１１に示すように一個の均等幅分割インキつぼキー（７３）がインキ元ローラの軸方向に隣り合う複数の画像（８５ａ，８５ｂ）の端部（１１１，１１２）の位置にあり、一方の画像（８５ａ）の端部（１１１）のみのインキ供給量を調整したい場合、もう一方の画像（８５ｂ）の端部（１１２）とその間隙（８６ａ）部分のインキ供給量も変化してしまう。
【０００９】
以上のように、分割インキつぼキーが全て均等幅であるという理由により、意図するインキ供給量の調整個所を調整できず、印刷濃度にムラができてしまうため、高精度な印刷物を得ることができない。また、複数の画像の各画像が同一画像である場合、各画像が異なった印刷濃度となってしまい、均一な印刷物を得ることができないため、複数の画像（８５ａ，８５ｂ，８５ｃ，８５ｄ）とそれらの幅及び数が制約を受けてしまうことになる。
【００１０】
【課題を解決するための手段】
本発明は上記課題を解決するため、印刷幅の両側に配置されるフレーム間に、斜めに配置された底板及びこの幅方向の両側に配置される側板とにより形成されるインキを溜めるためのインキつぼと、左右両フレームにそれぞれ設けられた軸受により回転自在に支持され、底板の端部と近接する位置に配置されインキつぼからインキを送り出すためのインキ元ローラと、両端を左右両フレームに取り付けられて、底板の下方に配置されているつぼ台と、前記インキ元ローラに沿って複数個に細かく分割されたインキつぼキーと、前記インキつぼキーを前記インキ元ローラ対して前後進させるための駆動部とを備えた印刷機のインキ供給装置において、前記インキ供給装置が、一つの画像に対応した互いに異なる幅を持つ一個以上の分割インキつぼキーを有し、前記インキ元ローラの軸方向に隣接していることを特徴とする。
【００１１】
本発明は上記課題を解決するため、印刷幅の両側に配置されるフレーム間に、斜めに配置された底板及びこの幅方向の両側に配置される側板とにより形成されるインキを溜めるためのインキつぼと、左右両フレームにそれぞれ設けられた軸受により回転自在に支持され、底板の端部と近接する位置に配置されインキつぼからインキを送り出すためのインキ元ローラと、両端を左右両フレームに取り付けられて、底板の下方に配置されているつぼ台と、前記インキ元ローラに沿って複数個に細かく分割されたインキつぼキーと、前記インキつぼキーを前記インキ元ローラ対して前後進させるための駆動部とを備えた印刷機のインキ供給装置において、前記インキ供給装置が、複数の画像に対応した互いに異なる幅を持つ一個以上の分割インキつぼキーと、複数の画像におけるそれぞれの間隙に対応した互いに異なる幅を持つ一個以上の固定インキつぼキーとの組み合わせによって構成されるインキつぼキーを有し、前記インキ元ローラの軸方向に隣接していることを特徴とする。
【００１２】
固定インキつぼキーが、ゼロもしくは微量に調整可能であることを特徴とする。
【００１３】
印刷幅の両側に配置されるフレーム間に、斜めに配置された底板と、この幅方向の両側に配置される側板とにより形成されるインキを溜めるためのインキつぼ、左右両フレームにそれぞれ設けられた軸受により回転自在に支持され、底板の端部と近接する位置に配置されインキつぼからインキを送り出すためのインキ元ローラ、両端を左右両フレームに取り付けられて、底板の下方に配置されているつぼ台、前記インキ元ローラに沿って複数個に細かく分割されたインキつぼキー、前記インキつぼキーを前記インキ元ローラ対して前後進させるための駆動部とを備えた印刷機のインキ供給装置において、前記インキ供給装置が、一つの画像に対応した互いに異なる幅を持つ一個以上の分割インキつぼキーを有し、前記インキ元ローラの軸方向に隣接しているインキ供給装置を用いて、一つの画像の幅に対応させて分割インキつぼキーを隣接し、かつ前記分割インキつぼキーを前記インキ元ローラに対して前後進させ、インキ供給量によって各位置のインキ濃度を設計通りに調整し、被印刷物に高精度な印刷をすることを特徴とする。
【００１４】
印刷幅の両側に配置されるフレーム間に、斜めに配置された底板と、この幅方向の両側に配置される側板とにより形成されるインキを溜めるためのインキつぼ、左右両フレームにそれぞれ設けられた軸受により回転自在に支持され、底板の端部と近接する位置に配置されインキつぼからインキを送り出すためのインキ元ローラ、両端を左右両フレームに取り付けられて、底板の下方に配置されているつぼ台、前記インキ元ローラに沿って複数個に細かく分割されたインキつぼキー、前記インキつぼキーを前記インキ元ローラ対して前後進させるための駆動部とを備えた印刷機のインキ供給装置において、前記インキ供給装置が、複数の画像に対応した互いに異なる幅を持つ一個以上の分割インキつぼキーと、インキ元ローラの軸方向に隣り合う複数の画像におけるそれぞれの間隙に対応した互いに異なる幅を持つ一個以上の固定インキつぼキーとの組み合わせによって構成されるインキつぼキーを有し、前記インキ元ローラの軸方向に隣接していることを特徴とするインキ供給装置を用いて、インキ元ローラに対して隣り合う複数の画像におけるそれぞれの間隙に対応させて前記固定インキつぼキーを、ゼロもしくは微量に調整し、かつ複数の画像のそれぞれ幅に対応させて分割インキつぼキーを隣接し、前記分割インキつぼキーを前記インキ元ローラに対して前後進させ、インキ供給量によって各位置のインキ濃度を設計通りに調整し、被印刷物に高精度な印刷をすることを特徴とする。
【００１５】
【発明の実施の形態】
以下、図面を参照して本発明に係る印刷機におけるインキつぼキーの実施の形態を説明する。
【００１６】
この発明の実施の形態である印刷機における一つの画像に対するインキつぼキーの説明を図１、図２及び図３に従って説明する。印刷幅の両側に配置されるフレーム（２２）間にはインキを溜めるためのインキつぼ（１２）、インキつぼ（１２）からインキを送り出すためのインキ元ローラ（１１）及びつぼ台（１５）が取り付けられている。インキつぼ（１２）は、斜めに配置された底板（１４）と、この幅方向の両側に配置される側板（２１）とにより形成されている。インキ元ローラ（１１）は、左右両フレーム（２２）にそれぞれ設けられた図示しない軸受により回転自在に支持されている。インキ元ローラ（１１）は底板（１４）の端部と近接する位置に配置され、インキつぼ（１２）とインキ元ローラ（１１）とによりインキ溜めが形成される。つぼ台（１５）は、その両端を左右両フレーム（２２）に取り付けられて、底板（１４）の下方に配置されている。
【００１７】
つぼ台（１５）の上面のインキ元ローラ（１１）側には、一つの画像に対応した互いに異なる幅を持つ分割インキつぼキー（１３）をインキ元ローラ（１１）の軸方向に互いに隣接させ、図３に示す設計によるインキ濃度に対応させて分割インキつぼキー（１３）を前後進させ、インキ供給量の調整を行う。
【００１８】
この発明の実施の形態である印刷機における複数の画像に対するインキつぼキーの説明を図４、図５及び図６に従って説明する。印刷幅の両側に配置されるフレーム（２２）間にはインキを溜めるためのインキつぼ（１２）、インキつぼ（１２）からインキを送り出すためのインキ元ローラ（１１）及びつぼ台（１５）が取り付けられている。インキつぼ（１２）は、斜めに配置された底板（１４）と、この幅方向の両側に配置される側板（２１）とにより形成されている。インキ元ローラ（１１）は、左右両フレーム（２２）にそれぞれ設けられた図示しない軸受により回転自在に支持されている。インキ元ローラ（１１）は底板（１４）の端部と近接する位置に配置され、インキつぼ（１２）とインキ元ローラ（１１）とによりインキ溜めが形成される。つぼ台（１５）は、その両端を左右両フレーム（２２）に取り付けられて、底板（１４）の下方に配置されている。
【００１９】
つぼ台（１５）の上面のインキ元ローラ（１１）側には、インキ元ローラの軸方向に隣り合う複数の画像（５２ａ，５２ｂ，５２ｃ，５２ｄ）のそれぞれの幅と数、及び複数の画像に対応させて分割した互いに異なる幅を持つ分割インキつぼキー（１３）と、インキ元ローラの軸方向に隣り合う複数の画像（５２ａ，５２ｂ，５２ｃ，５２ｄ）におけるそれぞれの間隙（５３ａ，５３ｂ）の幅に対応させた固定インキつぼキー（４１）をインキ元ローラ（１１）の軸方向に互いに隣接して隙間無く配置させ、図６に示す設計によるインキ濃度に対応させて分割インキつぼキー（１３）を前後進させ、インキ供給量の調整を行う。
【００２０】
また、複数の画像に対応した互いに異なる幅を持つ分割インキつぼキー（１３）と、インキ元ローラの軸方向に隣り合う複数の画像（５２ａ，５２ｂ，５２ｃ，５２ｄ）におけるそれぞれの間隙（５３ａ，５３ｂ）の幅に対応させた固定インキつぼキー（４１）をインキ元ローラ（１１）の軸方向に互いに隣接して配置するわけであるが、分割インキつぼキー（１３）が全て互いに異なる幅を持つことに限定されるわけではなく、画像によっては全て均一な幅の分割インキつぼキー（１３）を用い、互いに隣接して配置することもあり得る。
【００２１】
また、複数の画像が同一画像である場合、各画像におけるインキ供給量の調整が各画像単位で行えるが、まず、一つの画像に対応した互いに異なる幅を持つ分割インキつぼキー（１３）を１個以上組み合わせてインキつぼキーを構成し、このインキつぼキーの構成と他の画像に対応したインキつぼキーの構成を同一にし、分割インキつぼキー（１３）を前後進させ、インキ供給量の調整を行う。
【００２２】
また、特殊な機能を持った機能性インキとして温度で変化する示温インキ、カーボン等を用いた導電インキ、特定条件で色の変わるインキ、ＯＶＩインキ等が挙げられるが、これらの機能性インキを用いて所望する機能を得るには、印刷物毎の濃度を均一にする必要性がある。複数の画像が同一画像であり、かつ機能性インキを用いて印刷を行う場合、各画像におけるインキ供給量の調整が各画像単位で行えるが、まず、一つの画像に対応した互いに異なる幅を持つ分割インキつぼキー（１３）を１個以上組み合わせてインキつぼキーを構成し、このインキつぼキーの構成と他の画像に対応したインキつぼキーの構成を同一にし、分割インキつぼキー（１３）を前後進させ、インキ供給量の調整を行う。
【００２３】
【発明の効果】
本発明における分割インキつぼキーは、個々に互いに異なる幅を持っているため、画像とその幅及び数に対応し、多数の組み合わせ方ができ、インキ供給量を調整したい個所に一致した分割インキつぼキーを見出すことができる。
【００２４】
また、本発明における固定インキつぼキーは、個々に互いに異なる幅を持っており、インキ供給量をゼロもしくは微量に調整可能なため、複数の画像におけるそれぞれの幅、及び該間隙の位置に対応し、画像端部に合わせて分割インキつぼキーを設置することができる。
【００２５】
よって、１個の分割インキつぼキーが隣り合う２つの画像にまたがることもなく、また、インキ供給量を調整したい部分が２個の分割インキつぼキーの一部分ずつにまたがることもないため、画像に対応した分割インキつぼキーの設定ができる。つまり、画像とその幅及び数が分割インキつぼキーの幅によって制約を受けることがない。
【００２６】
また、複数の画像が同一画像である場合、各画像におけるインキ供給量の調整が各画像単位で行え、一つの画像に対応した互いに異なる幅を持つ分割インキつぼキーを１個以上組み合わせてインキつぼキーを構成すれば、他の画像に対応したインキつぼキーの構成も同一でよく、その結果、画像同士のインキ濃度にムラがなく、均一かつ高精度な印刷物を得ることができる。
【００２７】
また、複数の画像が同一画像であり、かつ機能性インキを用いて印刷を行う場合、特に画像同士のインキ濃度を均一にする必要があるが、一つの画像に対応した互いに異なる幅を持つ分割インキつぼキーを１個以上組み合わせてインキつぼキーを構成すれば、他の画像に対応したインキつぼキーの構成も同一でよく、その結果、画像同士のインキ濃度にムラがなく、均一、かつ機能性インキの所望する機能を発現しうる高精度な印刷物を得ることができ、印刷物を真偽判別する際に、精度の高い判別をすることができる。
【図面の簡単な説明】
【図１】本発明における一つの画像に対応する印刷機のインキ供給装置で、図２及び図４のA−A'断面を示したもの
【図２】本発明における一つの画像に対応する印刷機のインキつぼキーを示したもの
【図３】本発明における一つの画像に対応する印刷機の設計によるインキ濃度とインキ供給量の関係の例を示したもの
【図４】本発明における複数の画像に対応する印刷機のインキ供給装置で、図５のB−B'断面を示したもの
【図５】本発明における複数の画像に対応する印刷機のインキつぼキーを示したもの
【図６】本発明における複数の画像に対応する印刷機の設計によるインキ濃度とインキ供給量の関係の例を示したもの
【図７】従来の印刷機のインキ供給装置を示したもの
【図８】従来の印刷機のインキつぼキーを示したもの
【図９】従来の印刷機における設計によるインキ濃度とインキ供給量の関係の例を示したもの
【図１０】インキ供給量を調整したい部分が、２個の均等幅分割インキつぼキーの一部分ずつにまたがっている場合の事例を示したもの
【図１１】一個の均等幅分割インキつぼキーが、インキ元ローラの軸方向に隣り合う複数の画像端部の位置にあり、一方の画像端部のみのインキ供給量を調整したい場合の事例を示したもの
【符号の説明】
１１，７１インキ元ローラ
１２，７２インキつぼ
７３均等幅の分割インキつぼキー
１３画像に対応した互いに異なる幅を持つ分割インキつぼキー
１４，７４底板
１５，７５つぼ台
１６，７６インキつぼキー駆動部
２１，８１インキつぼ側板
２２，８２フレーム
２３，８３基準インキつぼキー
４１固定インキつぼキー
５２ａ，５２ｂ，５２ｃ，５２ｄ，８５ａ，８５ｂ，８５ｃ，８５ｄ複数の画像
５３ａ，５３ｂ，８６ａ，８６ｂ複数の画像におけるそれぞれの間隙
７１インキ供給量の調整が必要な部分
７２インキ供給量の調整が不要な部分[0001]
BACKGROUND OF THE INVENTION
The present invention provides an ink supply device having ink fountain keys having different widths, which can correspond to an image and its width and number, thereby enabling a fine adjustment of the optimum ink supply amount, and a high-speed printer using the ink supply device. The present invention relates to a printing method for performing accurate printing.
[0002]
[Prior art]
In general, an ink supply device in a printing press has an ink source roller (71) that is a roller for supplying ink and an ink source roller that stores ink and supplies ink to the ink source roller (71) as shown in FIGS. An ink fountain (72) is provided. The ink fountain (72) is formed on the outer peripheral surface of the ink fountain roller (71) and on both sides of the uniform width divided ink fountain key (73) and the uniform width divided ink fountain key (73) forming the bottom of the ink fountain (72). The reference end of the ink fountain roller (71) close to the outer peripheral surface of the ink fountain roller (71), the side surface of the reference ink fountain key (83), and the end surface of the ink fountain roller (71) The side plate (81) has a uniform width dividing ink fountain key (73) applied to the ink base roller (71) to form a groove, and an appropriate amount of ink is put therein, and a uniform width dividing ink fountain key is formed. The ink film is kneaded by rotation of the ink base roller from between (73) and the ink base roller (71), and the ink film is formed by partially adjusting the thickness.
[0003]
Printing is performed with a width set for the substrate. Usually, the ink transfer area at each position in the width, that is, the image area is different, so that the amount of ink required at each position is different. That is, if the distance between the ink base roller (71) and the uniform width divided ink fountain key (73) is the same at each position in the width direction of the ink base roller (71), the amount of ink supplied at each position is almost equal. It becomes the same, and a dark part and a thin part are made on the printed printing paper.
[0004]
The conventional uniform width divided ink fountain key (83) that can finely adjust the amount of ink to be printed on printed matter that requires uniform shading is divided into a plurality of pieces along the axial direction of the ink source roller (71). The adjacent equal width divided ink fountain key (73), the reference ink fountain key (83) at both ends, and the side plate (81) are in sliding contact with each other. Further, a divided ink fountain key adjusting device is provided for each uniform width divided ink fountain key (73), and the interval between the uniform width divided ink fountain key (73) and the ink source roller (71) can be adjusted independently. The ink discharge amount is divided and controlled.
[0005]
The divided ink fountain key adjusting device includes a drive unit (76) for moving each equal width divided ink fountain key (73) forward and backward with respect to the ink base roller (71), and the drive unit (76) has a uniform width. It is formed in a size that fits within the width of the divided ink fountain key (73).
[0006]
[Problems to be solved by the invention]
However, when printing with a plurality of images (85a, 85b, 85c, 85d), the uniform width divided ink fountain key (73) has a uniform width in the axial direction of the ink source roller (71). The position of the corresponding uniform width divided ink fountain key (73) is inevitably determined. Therefore, the width to adjust the ink supply amount is the same as the width of the uniform width divided ink fountain key (73) and coincides with the position of the uniform width divided ink fountain key (73) with respect to the ink source roller (71). If so, there is no problem, but in reality, as shown in FIG. 9, the ink supply amount corresponding to the designed ink density cannot be adjusted.
[0007]
Specifically, as shown in FIG. 10, when the portion (101) for which the ink supply amount is to be adjusted spans a part of each of the two equal width divided ink fountain keys (73), an appropriate ink supply amount is set. It is difficult to make adjustments. In other words, by adjusting two adjacent equal-width divided ink fountain keys (73) corresponding to the portion (101) for which the ink supply amount is to be adjusted, the ink supply amount can be adjusted up to the unnecessary portions (102a, 102b). Will change.
[0008]
Further, as shown in FIG. 11, one uniform width divided ink fountain key (73) is located at the end (111, 112) of a plurality of images (85a, 85b) adjacent in the axial direction of the ink base roller, When it is desired to adjust the ink supply amount only at the end (111) of one image (85a), the ink supply amount at the end (112) of the other image (85b) and the gap (86a) also changes. End up.
[0009]
As described above, because all the divided ink fountain keys have the same width, the adjustment portion of the intended ink supply amount cannot be adjusted, and unevenness in the printing density can be obtained, so that a highly accurate printed matter can be obtained. Can not. Further, when each of the plurality of images is the same image, each image has a different print density, and a uniform printed matter cannot be obtained. Therefore, the plurality of images (85a, 85b, 85c, 85d) Their width and number will be constrained.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is an ink for storing ink formed by a bottom plate disposed obliquely and side plates disposed on both sides in the width direction between frames disposed on both sides of the printing width. An ink fountain roller that is rotatably supported by bearings provided on the vase and the left and right frames, and is positioned close to the end of the bottom plate, and both ends are attached to the left and right frames. A fountain base disposed below the bottom plate, an ink fountain key finely divided into a plurality along the ink base roller, and a drive for moving the ink fountain key forward and backward relative to the ink base roller An ink supply device for a printing press comprising a printing section, wherein the ink supply device has one or more divided inks having different widths corresponding to one image. Including the key, characterized in that adjacent to the axial direction of the ink fountain roller.
[0011]
In order to solve the above problems, the present invention is an ink for storing ink formed by a bottom plate disposed obliquely and side plates disposed on both sides in the width direction between frames disposed on both sides of the printing width. An ink fountain roller that is rotatably supported by bearings provided on the vase and the left and right frames, and is positioned close to the end of the bottom plate, and both ends are attached to the left and right frames. A fountain base disposed below the bottom plate, an ink fountain key finely divided into a plurality along the ink base roller, and a drive for moving the ink fountain key forward and backward relative to the ink base roller An ink supply device for a printing press comprising a plurality of sections, wherein the ink supply device has at least one divided ink having different widths corresponding to a plurality of images. An ink fountain key composed of a combination of a key and one or more fixed ink fountain keys having different widths corresponding to respective gaps in a plurality of images, and adjacent to the axial direction of the ink fountain roller It is characterized by being.
[0012]
The fixed ink fountain key can be adjusted to zero or a minute amount.
[0013]
Ink fountains for collecting ink formed by the bottom plate arranged diagonally and the side plates arranged on both sides in the width direction between the frames arranged on both sides of the printing width are provided on both the left and right frames, respectively. An ink fountain roller that is rotatably supported by the bearings and is located close to the end of the bottom plate, for feeding ink out of the ink fountain, both ends are attached to the left and right frames, and the basin located below the bottom plate In an ink supply device of a printing press comprising a base, an ink fountain key finely divided into a plurality along the ink base roller, and a drive unit for moving the ink fountain key forward and backward relative to the ink base roller, The ink supply device has one or more divided ink fountain keys having different widths corresponding to one image, and the axial direction of the ink fountain roller Using adjacent ink supply devices, the divided ink fountain keys are adjacent to each other in accordance with the width of one image, and the divided ink fountain keys are moved forward and backward with respect to the ink base roller. The ink density at each position is adjusted as designed, and high-precision printing is performed on the substrate.
[0014]
Ink fountains for collecting ink formed by the bottom plate arranged diagonally and the side plates arranged on both sides in the width direction between the frames arranged on both sides of the printing width are provided on both the left and right frames, respectively. An ink fountain roller that is rotatably supported by the bearings and is located close to the end of the bottom plate, for feeding ink out of the ink fountain, both ends are attached to the left and right frames, and the basin located below the bottom plate In an ink supply device of a printing press comprising a base, an ink fountain key finely divided into a plurality along the ink base roller, and a drive unit for moving the ink fountain key forward and backward relative to the ink base roller, The ink supply device is adjacent to one or more divided ink fountain keys having different widths corresponding to a plurality of images in the axial direction of the ink source roller. It has an ink fountain key constituted by a combination with one or more fixed ink fountain keys having different widths corresponding to respective gaps in a plurality of images, and is adjacent to the ink fountain roller in the axial direction. Using the characteristic ink supply device, the fixed ink fountain key is adjusted to zero or a minute amount corresponding to each gap in a plurality of images adjacent to the ink base roller, and each width of the plurality of images is adjusted. The divided ink fountain key is adjacent to the ink fountain key, and the divided ink fountain key is moved back and forth with respect to the ink base roller, and the ink density at each position is adjusted as designed according to the ink supply amount. It is characterized by performing easy printing.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of an ink fountain key in a printing press according to the present invention will be described below with reference to the drawings.
[0016]
The ink fountain key for one image in the printing press according to the embodiment of the present invention will be described with reference to FIGS. 1, 2 and 3. FIG. An ink fountain (12) for storing ink, an ink fountain roller (11) and a fountain base (15) for feeding ink from the ink fountain (12) are provided between the frames (22) arranged on both sides of the printing width. It is attached. The ink fountain (12) is formed by a bottom plate (14) disposed obliquely and side plates (21) disposed on both sides in the width direction. The ink base roller (11) is rotatably supported by bearings (not shown) provided on the left and right frames (22). The ink fountain roller (11) is disposed at a position close to the end of the bottom plate (14), and the ink fountain (12) and the ink fountain roller (11) form an ink reservoir. The pot base (15) is attached to the left and right frames (22) at both ends, and is disposed below the bottom plate (14).
[0017]
On the ink fountain roller (11) side of the upper surface of the fountain base (15), divided ink fountain keys (13) having different widths corresponding to one image are adjacent to each other in the axial direction of the ink fountain roller (11). The divided ink fountain key (13) is moved forward and backward in accordance with the ink density according to the design shown in FIG.
[0018]
The ink fountain key for a plurality of images in the printing press according to the embodiment of the present invention will be described with reference to FIGS. 4, 5, and 6. FIG. An ink fountain (12) for storing ink, an ink fountain roller (11) and a fountain base (15) for feeding ink from the ink fountain (12) are provided between the frames (22) arranged on both sides of the printing width. It is attached. The ink fountain (12) is formed by a bottom plate (14) disposed obliquely and side plates (21) disposed on both sides in the width direction. The ink base roller (11) is rotatably supported by bearings (not shown) provided on the left and right frames (22). The ink fountain roller (11) is disposed at a position close to the end of the bottom plate (14), and the ink fountain (12) and the ink fountain roller (11) form an ink reservoir. The pot base (15) is attached to the left and right frames (22) at both ends, and is disposed below the bottom plate (14).
[0019]
On the ink fountain roller (11) side on the upper surface of the pot base (15), the width and number of the plurality of images (52a, 52b, 52c, 52d) adjacent in the axial direction of the ink fountain roller, and the plurality of images The divided ink fountain keys (13) having different widths corresponding to each other and the gaps (53a, 53b) in the plurality of images (52a, 52b, 52c, 52d) adjacent in the axial direction of the ink source roller. The fixed ink fountain key (41) corresponding to the width of the ink fountain roller (11) is arranged adjacent to each other in the axial direction of the ink base roller (11) without any gap, and divided ink fountain keys (in accordance with the ink density by the design shown in FIG. 13) Move forward and backward to adjust the ink supply amount.
[0020]
Further, the divided ink fountain keys (13) having different widths corresponding to the plurality of images and the respective gaps (53a, 52b) in the plurality of images (52a, 52b, 52c, 52d) adjacent in the axial direction of the ink source roller. The fixed ink fountain key (41) corresponding to the width of 53b) is arranged adjacent to each other in the axial direction of the ink source roller (11), but the divided ink fountain keys (13) all have different widths. It is not limited to having it, and depending on the image, it is possible to use a divided ink fountain key (13) having a uniform width and arrange them adjacent to each other.
[0021]
In addition, when a plurality of images are the same image, the ink supply amount in each image can be adjusted for each image. First, a divided ink fountain key (13) corresponding to one image and having different widths is set to 1. The ink fountain key is configured by combining more than one, and the structure of the ink fountain key and the structure of the ink fountain key corresponding to other images are the same, and the divided ink fountain key (13) is moved forward and backward to adjust the ink supply amount. I do.
[0022]
Examples of functional inks with special functions include temperature indicating inks that change with temperature, conductive inks using carbon, inks that change color under specific conditions, OVI inks, etc. In order to obtain a desired function, it is necessary to make the density of each printed matter uniform. When multiple images are the same image and printing is performed using functional ink, the ink supply amount in each image can be adjusted for each image, but first, they have different widths corresponding to one image. One or more divided ink fountain keys (13) are combined to form an ink fountain key. The structure of the ink fountain key is the same as that of the ink fountain key corresponding to another image, and the divided ink fountain key (13) is Move forward and backward to adjust ink supply.
[0023]
【The invention's effect】
Since the divided ink fountain keys in the present invention have different widths from one another, they can be combined in a number of ways corresponding to the image and its width and number, and the divided ink fountain matches the location where the ink supply amount is to be adjusted. The key can be found.
[0024]
In addition, the fixed ink fountain keys in the present invention have different widths from each other, and the ink supply amount can be adjusted to zero or a minute amount, so that it corresponds to each width in a plurality of images and the position of the gap. A split ink fountain key can be installed to fit the edge of the image.
[0025]
Therefore, one divided ink fountain key does not extend over two adjacent images, and the portion for which the ink supply amount is to be adjusted does not extend over a part of each of the two divided ink fountain keys. Corresponding divided ink fountain keys can be set. That is, the image and its width and number are not restricted by the width of the divided ink fountain key.
[0026]
In addition, when a plurality of images are the same image, the ink supply amount in each image can be adjusted for each image unit, and an ink fountain is formed by combining one or more divided ink fountain keys having different widths corresponding to one image. If the key is configured, the configuration of the ink fountain key corresponding to other images may be the same, and as a result, there is no unevenness in the ink density between the images, and a uniform and highly accurate printed matter can be obtained.
[0027]
In addition, when multiple images are the same image and printing is performed using functional ink, it is necessary to make the ink density uniform between the images, but the divisions corresponding to one image have different widths. If the ink fountain key is configured by combining one or more ink fountain keys, the structure of the ink fountain key corresponding to other images may be the same. As a result, there is no unevenness in the ink density between images, and the function is uniform and functional. It is possible to obtain a highly accurate printed material that can express the desired function of the ink, and to determine the printed material with high accuracy.
[Brief description of the drawings]
FIG. 1 is an ink supply device of a printing press corresponding to one image in the present invention, showing the AA ′ cross section of FIGS. 2 and 4. FIG. 2 is a printing corresponding to one image in the present invention. Fig. 3 shows an example of the ink fountain key of the machine. Fig. 3 shows an example of the relationship between the ink density and the ink supply amount by the design of the printing machine corresponding to one image in the present invention. FIG. 5 shows an fountain key of a printing press corresponding to a plurality of images according to the present invention. FIG. FIG. 7 shows an example of the relationship between the ink density and the amount of ink supplied by designing a printing machine corresponding to a plurality of images in the present invention. FIG. 7 shows an ink supply device of a conventional printing machine. Showing the ink fountain key of a printing press in Japan [Fig. 9] Fig. 10 shows an example of the relationship between the ink density and the ink supply amount according to the design of the printing press. Fig. 10 When the part where the ink supply amount is to be adjusted spans a part of each of the two equally-width divided ink fountain keys [Fig. 11] A single uniform-width-divided ink fountain key is located at the positions of a plurality of image edges adjacent in the axial direction of the ink source roller, and the ink supply amount of only one image edge is reduced. Examples of cases where adjustment is required [Explanation of symbols]
11, 71 Ink base rollers 12, 72 Ink fountain 73 Divided ink fountain key 13 with uniform width Divided ink fountain keys 14, 74 with different widths corresponding to images Bottom plate 15, 75 Fountain base 16, 76 Ink fountain key drive unit 21, 81 Inkwell side plate 22, 82 Frame 23, 83 Reference inkwell key 41 Fixed inkwell key 52a, 52b, 52c, 52d, 85a, 85b, 85c, 85d Multiple images 53a, 53b, 86a, 86b Multiple images Each gap 71 in FIG. 71 A portion that requires adjustment of the ink supply amount 72 A portion that does not require adjustment of the ink supply amount

Claims

Ink fountains for collecting ink formed by a bottom plate arranged diagonally and side plates arranged on both sides in the width direction are provided between the frames arranged on both sides of the printing width, and both the left and right frames. Ink roller for feeding ink from ink fountain, which is rotatably supported by the bearings and arranged at the position close to the end of the bottom plate, and both ends are attached to the left and right frames, and are arranged below the bottom plate Ink of a printing press comprising a crucible base, an ink fountain key finely divided into a plurality along the ink base roller, and a drive unit for moving the divided ink fountain key forward and backward relative to the ink base roller In the supply device, the ink supply device includes one or more divided ink fountain keys having different widths corresponding to one image, and An ink supply device, characterized in that axially adjacent to La.

Ink fountains for collecting ink formed by the bottom plate arranged obliquely and the side plates arranged on both sides in the width direction are provided between the frames arranged on both sides of the printing width, and the left and right frames respectively. Ink roller for feeding ink from ink fountain, which is rotatably supported by the bearings and arranged at the position close to the end of the bottom plate, and both ends are attached to the left and right frames, and are arranged below the bottom plate Ink for a printing press comprising a crucible base, an ink fountain key finely divided into a plurality along the ink base roller, and a drive unit for moving the divided ink fountain key forward and backward relative to the ink base roller In the supply device, the ink supply device includes one or more divided ink fountain keys having different widths corresponding to a plurality of images, and an ink fountain roller shaft. Having an ink fountain key composed of a combination of one or more fixed ink fountain keys having different widths corresponding to the respective gaps in a plurality of adjacent images, and adjacent to the ink source roller in the axial direction. An ink supply device characterized by that.

The ink supply device according to claim 2, wherein the fixed ink fountain key can be adjusted to zero or a minute amount.

Ink fountains for collecting ink formed by a bottom plate arranged diagonally and side plates arranged on both sides in the width direction are provided between the frames arranged on both sides of the printing width, and both the left and right frames. Ink roller for feeding ink from ink fountain, which is rotatably supported by the bearings and arranged at the position close to the end of the bottom plate, and both ends are attached to the left and right frames, and are arranged below the bottom plate Ink of a printing press comprising a crucible base, an ink fountain key finely divided into a plurality along the ink base roller, and a drive unit for moving the divided ink fountain key forward and backward relative to the ink base roller In the supply device, the ink supply device includes one or more divided ink fountain keys having different widths corresponding to one image, and Using the ink supply device adjacent in the axial direction of the label, the divided ink fountain key is adjacent to the width of one image, and the divided ink fountain key is moved forward and backward with respect to the ink base roller. A printing method characterized in that the ink density at each position is adjusted as designed according to the ink supply amount, and printing is performed on the substrate with high accuracy.

Ink fountains for collecting ink formed by a bottom plate arranged diagonally and side plates arranged on both sides in the width direction are provided between the frames arranged on both sides of the printing width, and both the left and right frames. Ink roller for feeding ink from ink fountain, which is rotatably supported by the bearings and arranged at the position close to the end of the bottom plate, and both ends are attached to the left and right frames, and are arranged below the bottom plate Ink of a printing press comprising a crucible base, an ink fountain key finely divided into a plurality along the ink base roller, and a drive unit for moving the divided ink fountain key forward and backward relative to the ink base roller In the supply device, the ink supply device includes one or more divided ink fountain keys having different widths corresponding to a plurality of images, and an ink fountain roller shaft. Having an ink fountain key composed of a combination of one or more fixed ink fountain keys having different widths corresponding to the respective gaps in a plurality of adjacent images, and adjacent to the ink source roller in the axial direction. The fixed ink fountain key is adjusted to zero or a minute amount corresponding to each gap in a plurality of images adjacent to the ink base roller using an ink supply device characterized in that The divided ink fountain key is adjacent to the width of the image, the divided ink fountain key is moved forward and backward with respect to the ink base roller, and the ink density at each position is adjusted as designed according to the ink supply amount, A printing method characterized by performing high-precision printing.