JPH01210345A - Rolling roller for printer - Google Patents

Rolling roller for printer

Info

Publication number
JPH01210345A
JPH01210345A JP63036246A JP3624688A JPH01210345A JP H01210345 A JPH01210345 A JP H01210345A JP 63036246 A JP63036246 A JP 63036246A JP 3624688 A JP3624688 A JP 3624688A JP H01210345 A JPH01210345 A JP H01210345A
Authority
JP
Japan
Prior art keywords
roller
electromagnet
rolling
permanent magnet
ink
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.)
Pending
Application number
JP63036246A
Other languages
Japanese (ja)
Inventor
Yoshiaki Yamamoto
良明 山本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP63036246A priority Critical patent/JPH01210345A/en
Publication of JPH01210345A publication Critical patent/JPH01210345A/en
Pending legal-status Critical Current

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

PURPOSE:To uniformize an ink supply to a printing plate and make possible the elimination of ink density variation generated in the printing width direction of printed matter, even when the rotating speed of a printer changes by employing a rolling roller consisting of a rolling part with a permanent magnet which runs out and rotates while being in contact with an inking roller and a roller shaft with an electromagnet in a position where an electromagnetic force acts on a permanent magnet. CONSTITUTION:In this rolling roller 1, a rolling part 2 has freedom only in an axial direction, and a permanent magnet 4 moves from the homopolar position of an electromagnet 5 to its heteropolar position by a force generated. In addition, this force changes its level in accordance with the current value of the electromagnet 5. Further, said force runs out periodically to cause the periodical change of the direction of an electric current. The current cycle is accelerated for speeding up the runout period, and the current value is adjusted for adjusting the runout width. Under the above-mentioned constitution, the rollout phase of the rolling part 2 against a roller shaft 3 is adjusted, and thereby an ink film deflected with the axial direction on an inking roller 8 can be uniformly widened.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は印刷機のインキ付けローラーへ軸方向にインキ
を均一に供給することで、軸方向に均一なインキ濃度の
印刷が行えるための、印刷インキ供給装置横転ローラー
に係る。
Detailed Description of the Invention <Industrial Application Field> The present invention provides a method for printing with uniform ink density in the axial direction by uniformly supplying ink in the axial direction to the inking roller of a printing press. Relating to a printing ink supply device rolling roller.

〈従来の技術〉 一般の印刷機では、絵柄の面接率が軸方向で相違してい
るのが一般的である。この場合、それに応じて軸方向に
おいてインキ量が相違しそれにより、インキ付けのロー
ラー上のインキ残量が異なってくる。この場合、印刷物
の軸方向において、ベタ濃度画線領域のインキ濃淡差(
ゴースト)が生じることがある。
<Prior Art> In general printing presses, the coverage ratio of the pattern is generally different in the axial direction. In this case, the amount of ink differs in the axial direction accordingly, resulting in a difference in the amount of ink remaining on the inking roller. In this case, ink density difference (
ghost) may occur.

この為、従来の印刷機におけるインキ供給機構で、第5
図に示す様に印刷版10対してインキを供給するインキ
付けローラー8に対してインキ練りローラ11を接触さ
せ、これが左右に動くことでインキ付けローラー8上の
インキを軸方向に均一に分布させようとしている。その
インキ練りローラー11は、固定されたローラー軸と、
自由に回転可能な横転部よりなっている。この横転部と
軸ローラーには、お互いかみ合うカムが設けられ、カム
のガイドに従って横転部が左右に移動する仕組になって
いる。しかし、これでは−回転当り一つの運動しか行な
えなく、また、横転幅もカムで誘導できる範囲内の、限
定された幅となる。
For this reason, in the ink supply mechanism of conventional printing presses, the fifth
As shown in the figure, the ink mixing roller 11 is brought into contact with the inking roller 8 that supplies ink to the printing plate 10, and by moving from side to side, the ink on the inking roller 8 is evenly distributed in the axial direction. I am trying to do. The ink mixing roller 11 has a fixed roller shaft,
It consists of a freely rotatable roll-over section. The rollover part and the shaft roller are provided with cams that engage with each other, and the rollover part moves left and right according to the guide of the cam. However, in this case, only one movement can be performed per revolution, and the rolling width is limited to a range that can be guided by the cam.

〈発明が解決しようとする課題〉 上述の例では、印刷物の絵柄やインキ特性、印刷機の回
転速度やインキ特性が変化したような場合には、軸方向
の各々の部分毎にインキの量が相違してきて、再び調整
する必要が起きる。どのような場合、従来のインキ練り
ローラーだけでは対応出来なかった。
<Problems to be Solved by the Invention> In the above example, when the pattern of the printed matter, the ink characteristics, the rotational speed of the printing press, and the ink characteristics change, the amount of ink is changed for each part in the axial direction. They become different and need to be readjusted. In some cases, conventional ink mixing rollers alone cannot handle the situation.

〈課題を解決するための手段〉 上記課題を達成するため、インキ練りローラーに替え、
もしくはインキ練りローラーと共に、インキ付けローラ
ーに接触しなから横振回転する永久磁石を備えた横転部
2と、前記永久磁石に電磁力が働く位置に電磁石を備え
たローラー軸とにより構成する横転ローラーを使用する
<Means for solving the problem> In order to achieve the above problem, instead of an ink mixing roller,
Or, together with the inking roller, a rolling roller comprising a rolling part 2 equipped with a permanent magnet that vibrates and rotates horizontally without contacting the inking roller, and a roller shaft equipped with an electromagnet at a position where an electromagnetic force acts on the permanent magnet. use.

〈作用〉 本発明の印刷機横転ローラーの構成では、その電磁石に
周期電流を流すと、その電流の周期および位相を変化す
ることで、その移動速度および移動方向を調整する事が
可能となり、印刷状態に即した横転ローラーの速度およ
び振り幅に、任意に調整できる様になった。
<Function> In the configuration of the rolling roller of a printing press of the present invention, when a periodic current is passed through the electromagnet, the period and phase of the current are changed, thereby making it possible to adjust the speed and direction of movement. It is now possible to arbitrarily adjust the speed and swing width of the rolling roller to suit the situation.

〈実施例1〉 以下、本発明の一実施例につき図面を参照して詳細に説
明する。
<Example 1> Hereinafter, one example of the present invention will be described in detail with reference to the drawings.

本発明の印刷機用横転ローラー1は、横転部2とローラ
ー軸3よりなり、その間のヘアリング7によって自在に
回転する。そのうち横転ローラー1の内部には、永久磁
石4が設けられて、また、ローラー軸3には端子6から
配線された電磁石5が設けられている。この□電磁石5
は軸方向で対になっており、その何れもがほぼ永久磁石
4の可動範囲内に設けられている。
The rolling roller 1 for a printing press of the present invention consists of a rolling part 2 and a roller shaft 3, and is freely rotated by a hair ring 7 between them. A permanent magnet 4 is provided inside the rolling roller 1, and an electromagnet 5 wired from a terminal 6 is provided to the roller shaft 3. This □electromagnet 5
are arranged in pairs in the axial direction, and both of them are provided approximately within the movable range of the permanent magnet 4.

この実際の動作について、以下説明する。This actual operation will be explained below.

永久磁石4は、電磁石5と同極ならば反発力が働き、異
極ならば引力が働く。この場合、横転部2は軸方向にし
か自由度がないので、永久磁石4の位置が同極の電磁石
5の位置より、異極の電磁石5の位置へ移動する力が働
く。また、この力は、電磁石5の電流値に応じて強くな
ったり弱(なったりする。この横軸ローラー1は、周期
的に左右に振る必要があるが、この為、電磁石5の電流
の向きと周期的に変化させると良い。なお、この振り周
期を早くする為には電流の周期を早めると良いし、また
振り幅を調節する為には、電流値を調整すると良い。な
お、この電源は、交流電源でもよく、方形やパルス波で
あってもよい。
If the permanent magnet 4 has the same polarity as the electromagnet 5, a repulsive force will act, and if the permanent magnet 4 has different polarities, an attractive force will act. In this case, since the rolling portion 2 has a degree of freedom only in the axial direction, a force acts to move the permanent magnet 4 from the position of the electromagnet 5 of the same polarity to the position of the electromagnet 5 of a different polarity. In addition, this force becomes stronger or weaker (becomes weaker) depending on the current value of the electromagnet 5. This horizontal axis roller 1 needs to be periodically shaken from side to side, but for this reason, the direction of the current of the electromagnet 5 is It is good to change it periodically.In order to make this swing cycle faster, it is better to make the current cycle faster, and to adjust the swing width, it is better to adjust the current value.Please note that this power supply may be an AC power supply, or may be a square wave or a pulse wave.

このため、ローラー軸3に対する横転部2の横振り位相
を調整し、インキ付けローラー8上の軸方向に対して偏
位しているインキ皮膜を均一に広げることが可能となる
。従って、印刷機の回転速度や印刷インキ、用紙等が変
化した場合でも、印刷機の印刷版3に対するインキ供給
を均一化し、印刷物の印刷幅方向に発生するインキの濃
淡差を除去することが可能となる。
Therefore, it is possible to adjust the lateral swing phase of the rolling section 2 with respect to the roller shaft 3, and to uniformly spread the ink film on the inking roller 8, which is deviated with respect to the axial direction. Therefore, even if the rotational speed of the printing press, printing ink, paper, etc. change, it is possible to equalize the ink supply to the printing plate 3 of the printing press and eliminate differences in ink shading that occur in the printing width direction of printed matter. becomes.

〈実施例2〉 以下、実施例1とは違う本発明の一実施例につき第4図
を参照して詳細に説明する。
<Example 2> Hereinafter, an example of the present invention different from Example 1 will be described in detail with reference to FIG. 4.

この印刷機用横転ローラー1は、横転部2とローラー軸
3よりなり、その間のベアリング7によって自在に回転
する。そのうち横転ローラーlの内部には、永久磁石4
が設けられて、また、ローラー軸3には端子6から配線
された電磁石5が設けられている。この電磁石5は軸方
向で対になっており、その何れもがほぼ永久磁石4の可
動範囲内に設けられている。その駆動方法は、実施例1
と同様である。
This rolling roller 1 for a printing press consists of a rolling section 2 and a roller shaft 3, and is freely rotated by a bearing 7 between them. Inside the rolling roller l, there is a permanent magnet 4.
The roller shaft 3 is also provided with an electromagnet 5 wired from a terminal 6. The electromagnets 5 are arranged in pairs in the axial direction, and each of the electromagnets 5 is provided approximately within the movable range of the permanent magnet 4. The driving method is shown in Example 1.
It is similar to

〈発明の効果〉 以上説明したように本発明によれば、インキ練りローラ
ーを設けて構成し、印刷機による印刷状態に応じて、電
磁石に流れる電流の周期や電流値を自由に調整する事に
より、印刷機の回転速度等が変化した場合でも、印刷の
印刷版に対するインキ供給を均一化し、印刷物の印刷幅
方向に発生するインキの濃淡差を除去することが出来る
<Effects of the Invention> As explained above, according to the present invention, an ink mixing roller is provided and the cycle and current value of the current flowing through the electromagnet are freely adjusted according to the printing conditions of the printing machine. Even when the rotational speed of the printing press changes, it is possible to equalize the ink supply to the printing plate and eliminate the difference in ink density that occurs in the printing width direction of the printed matter.

【図面の簡単な説明】 第1図は本発明による印刷機用インキ練りローラーの一
実施例を示す側面図、第2図は、同正面断面図、第3図
は、同実施例の印刷機用インキ練りローラーを適用した
印刷インキ供給装置を示す側面図、第4図は本発明によ
る印刷機用インキ練りローラーの一実施例を示す側面図
、第5図は、従来の印刷インキ供給装置を示す側面図で
ある。 ■・・・横転ローラー 2・・・横転部 3・・・ローラー軸 4・・・永久磁石 5・・・電磁石 6・・・端子 7・・・ベアリング 8・・・インキ付けローラー 9・・・ブランケット 10・・・印刷版 11・・・インキ練りローラー 12・・・圧胴 13・・・印刷紙 特  許  出  願  人 凸版印刷株式会社 代表者 鈴木和夫 第 4図
[Brief Description of the Drawings] Fig. 1 is a side view showing an embodiment of an ink mixing roller for a printing press according to the present invention, Fig. 2 is a front sectional view of the same, and Fig. 3 is a printing machine of the same embodiment. FIG. 4 is a side view showing an embodiment of the ink mixing roller for a printing press according to the present invention, and FIG. FIG. ■...Rolling roller 2...Rolling part 3...Roller shaft 4...Permanent magnet 5...Electromagnet 6...Terminal 7...Bearing 8...Inking roller 9... Blanket 10...Printing plate 11...Ink mixing roller 12...Impression cylinder 13...Printing paper patent application Toppan Printing Co., Ltd. Representative Kazuo Suzuki Figure 4

Claims (1)

【特許請求の範囲】[Claims] 1)印刷インキ供給装置に用いられるインキ付けローラ
ーに接触し、かつ永久磁石を備えた横振しながら回転す
る横転部と、前記永久磁石に電磁力を働かせ得る位置に
電磁石を具えて固定されたローラー軸よりなることを特
徴とする印刷機用横転ローラー。
1) A rolling part that contacts an inking roller used in a printing ink supply device and rotates while oscillating sideways and is equipped with a permanent magnet, and an electromagnet is fixed at a position where an electromagnetic force can be exerted on the permanent magnet. A rolling roller for printing presses characterized by consisting of a roller shaft.
JP63036246A 1988-02-18 1988-02-18 Rolling roller for printer Pending JPH01210345A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63036246A JPH01210345A (en) 1988-02-18 1988-02-18 Rolling roller for printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63036246A JPH01210345A (en) 1988-02-18 1988-02-18 Rolling roller for printer

Publications (1)

Publication Number Publication Date
JPH01210345A true JPH01210345A (en) 1989-08-23

Family

ID=12464416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63036246A Pending JPH01210345A (en) 1988-02-18 1988-02-18 Rolling roller for printer

Country Status (1)

Country Link
JP (1) JPH01210345A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06122187A (en) * 1992-02-13 1994-05-06 Tokyo Kikai Seisakusho Ltd Ink device
US6360664B1 (en) * 1999-02-01 2002-03-26 Man Roland Druckmaschinen Ag Apparatus for the axial guidance and adjustment of a cylinder
US6543355B1 (en) * 1998-04-24 2003-04-08 Koenig & Bauer Aktiengesellschaft Roller for a rotary press

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6313747A (en) * 1986-07-03 1988-01-21 Tekunoroole Kk Offset press

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6313747A (en) * 1986-07-03 1988-01-21 Tekunoroole Kk Offset press

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06122187A (en) * 1992-02-13 1994-05-06 Tokyo Kikai Seisakusho Ltd Ink device
US6543355B1 (en) * 1998-04-24 2003-04-08 Koenig & Bauer Aktiengesellschaft Roller for a rotary press
US6360664B1 (en) * 1999-02-01 2002-03-26 Man Roland Druckmaschinen Ag Apparatus for the axial guidance and adjustment of a cylinder

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