JPH02235639A - Washing of guide roller of rotary press - Google Patents
Washing of guide roller of rotary pressInfo
- Publication number
- JPH02235639A JPH02235639A JP5875489A JP5875489A JPH02235639A JP H02235639 A JPH02235639 A JP H02235639A JP 5875489 A JP5875489 A JP 5875489A JP 5875489 A JP5875489 A JP 5875489A JP H02235639 A JPH02235639 A JP H02235639A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- guide rollers
- group
- guide
- guide roller
- 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
- 238000005406 washing Methods 0.000 title abstract 4
- 238000007639 printing Methods 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 241001333909 Soter Species 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は輪転印刷機に配設されている多数のガイドロー
ラの汚れを、ガイドローラに対して速度差を持たせた走
行紙により自動的に拭き取る方法に関する．更に詳しく
述べると本発明は、祇コース上にある多数のガイドロー
ラを複数のグループに分け、各グループ内でガイドロー
ラの回転方向と回転数を所定の状態に設定し、グループ
毎に順次駆動制御することにより、断祇の発生がなく安
定且つ確実に洗浄できるようにしたガイドローラ洗浄方
法に関するものである．［従来の技術］
新聞印刷用の輪転機は、通常４〜６台程度の印刷ユニッ
トを並設した構成が採られる．第５図にその一例を示す
．各印刷ユニットは、それぞれブランケット胴１２及び
版胴ｌ３等からなる印刷部１４と、巻取り紙１６を保持
する給紙部１日を備えている．給紙部１８から引き出さ
れた走行祇２０は複数のガイドローラ２２で案内されて
印刷部１４に達し、そこで印刷され、更に多数のガイド
ローラ２４で案内されスリツターやターンバーを通り折
機部２６に達する．各印刷ユニットについて印刷部１４
の徘紙側、即ち印刷部１４と折機部との間には数十本程
度のガイドローラ２４が組み込まれている．従って印刷
機全体ではガイドローラの本数は百数十本にも達する．
これらのガイドローラ２４は、特に印刷部１４に近いガ
イドローラほど印刷直後の走行紙に接触するためインキ
や紙粉が多く付着する傾向がある。ガイドローラ２４は
表面研慶されクロムメッキ等が施されて平滑な状態であ
りインキや祇粉等が付着し難いようになっているが、そ
れでも大量の印刷を行うと汚れはひどくなる．
ガイドローラ２４が汚れると印刷紙面が薄汚れてきたり
、付着物によって凹凸が生じるため走行紙に縦しわが生
じ易く、印刷品質が低下する重大な欠陥が生じる．
このため版の交換時や印刷が終了した時にガイドローラ
の汚れを拭き取る作業が必要となる．このような目的の
ため、輪転印刷機を祇通しのまま緩動運転し、走行紙に
適宜洗浄液を塗布して湿らせ、走行紙に接触しているガ
イドローラを、その周速が走行紙の速度と異なるように
回転して走行紙で汚れを拭き取る自動洗浄技術が開発さ
れた。[Detailed Description of the Invention] [Industrial Application Field] The present invention automatically removes dirt from a large number of guide rollers installed in a rotary printing press by using running paper that has a speed difference with respect to the guide rollers. Regarding how to wipe it off. To explain in more detail, the present invention divides a large number of guide rollers on a course into a plurality of groups, sets the rotational direction and rotation speed of the guide rollers in each group to a predetermined state, and sequentially controls the drive for each group. This invention relates to a guide roller cleaning method that enables stable and reliable cleaning without causing breakage. [Prior Art] A rotary press for printing newspapers usually has a configuration in which about 4 to 6 printing units are installed in parallel. Figure 5 shows an example. Each printing unit includes a printing section 14 including a blanket cylinder 12, a plate cylinder 13, etc., and a paper feed section 1 for holding a web 16. The traveling paper 20 pulled out from the paper feed section 18 is guided by a plurality of guide rollers 22 to reach the printing section 14, where it is printed, and further guided by a large number of guide rollers 24, passing through a slitter and a turn bar to a folding machine section 26. Reach. Printing section 14 for each printing unit
Approximately several dozen guide rollers 24 are installed on the paper side, that is, between the printing section 14 and the folding machine section. Therefore, the number of guide rollers in the entire printing machine reaches over 100.
In particular, the closer the guide rollers 24 are to the printing section 14, the more ink and paper dust tends to adhere to these guide rollers 24 because they come into contact with the running paper immediately after printing. The surface of the guide roller 24 is polished and chrome-plated to make it smooth and prevent ink, powder, etc. from adhering to it, but even so, if a large amount of printing is performed, it will become heavily soiled. When the guide roller 24 becomes dirty, the surface of the printed paper becomes slightly stained, and the deposits create unevenness, which tends to cause vertical wrinkles in the running paper, resulting in serious defects that reduce print quality. For this reason, it is necessary to wipe off the dirt on the guide rollers when replacing plates or when printing is finished. For this purpose, the rotary printing press is operated slowly while the printing machine is running, the running paper is coated with cleaning liquid as appropriate, and the guide roller in contact with the running paper is moved so that its circumferential speed is that of the running paper. An automatic cleaning technology has been developed that uses running paper to wipe away dirt by rotating at different speeds.
［発明が解決しようとする課題］
従来技術では各ガイドローラの回転駆動方向や回転速度
に関しては特に考慮は払われておらず、各ガイドローラ
は同じ向きにほぼ同じ速度で同時に駆動されていた．こ
の方法は原理的にはガイドローラの洗浄が可能であるも
のの実際に輪転印刷機に組み込んだ場合には様々な問題
が生じた．例えば多くの（５〜７本以上）ガイドローラ
を同時に逆回転すると、祇の張力が累積されて中間又は
折機部内のニソブローラ近傍にてしばしば断紙が生じた
．逆に同時に多くのガイドローラを正転させると給紙部
でのブレーキ効果が無くなり紙が引き出されたり、ある
いは断紙が生じた．いずれにしても断祇が発生すると紙
の再通しと言う煩瑣な作業が必要となり、輪転印刷機の
稼動効率が低下し、自動化と言う本来の目的を大きく損
なうことになる．そのためやむをえず印刷部近傍の少数
本のガイドローラの洗浄のみに適用するか、又は祇コー
ス途中に断紙を防ぐため特別なニフブローラ等を設ける
等の方法しかなく、紙コース上にある多数本のガイドロ
ーラを自動的に容易に洗浄することは困難と考えられて
いた。[Problems to be Solved by the Invention] In the prior art, no particular consideration was given to the rotational drive direction or rotational speed of each guide roller, and each guide roller was driven simultaneously in the same direction and at approximately the same speed. Although in principle this method makes it possible to clean the guide rollers, various problems arose when it was actually incorporated into a rotary printing press. For example, when many (5 to 7 or more) guide rollers were rotated in reverse at the same time, the tension of the paper was accumulated, and paper breaks often occurred in the middle or near the rollers in the folding machine. On the other hand, if many guide rollers were rotated forward at the same time, the braking effect at the paper feed section was lost and the paper was pulled out or paper breaks occurred. In any case, when a break occurs, the tedious task of rethreading the paper becomes necessary, reducing the operating efficiency of the rotary printing press and greatly defeating the original purpose of automation. Therefore, there is no choice but to apply it only to cleaning a small number of guide rollers near the printing section, or to install a special nif roller etc. to prevent paper breakage in the middle of the paper course. It has been considered difficult to automatically and easily clean guide rollers.
本発明の目的は、上記のような従来技術の欠点を解消し
、１台の印刷ユニノト当たり数十本にも達するガイドロ
ーラを、断紙等のトラブルが発生することなく効率よく
確実に自動洗浄できる方法を提供することにある。The purpose of the present invention is to eliminate the above-mentioned drawbacks of the conventional technology, and to automatically clean the guide rollers, which number several dozen per printing unit, efficiently and reliably without causing problems such as paper breaks. The goal is to provide a method that can be used.
［課題を解決するための手段］
上記のような技術的課題を解決できる本発明は、輪転印
刷機を祇通しのまま緩動運転し、走行紙に洗浄液を塗布
して湿らせ、該走行紙が接触しているガイドローラを、
その周速が走行紙の速度と異なるように回転して走行紙
で汚れを拭き取る方法を前提とし、輪転印刷機の祇コー
ス上にある多数のガイドローラを互いに近接した位置関
係にある２〜４本からなる複数のグループに分け、各グ
ループ内で給紙部側のガイドローラは走行紙に対して逆
転、折磯部側のガイドローラは正転とし、グループ毎に
順次駆動制御する輪転印刷機のガイドローラ洗浄方法で
ある。[Means for Solving the Problems] The present invention, which can solve the above-mentioned technical problems, operates a rotary printing machine at a slow speed while it is being cleaned, applies a cleaning liquid to the running paper to moisten it, and then cleans the running paper. The guide roller that is in contact with
The method is based on a method in which the circumferential speed is different from the speed of the running paper and the dirt is wiped with the running paper, and a large number of guide rollers on the girder course of the rotary printing machine are arranged in two to four guide rollers located close to each other. A rotary printing machine that divides books into multiple groups, and within each group, the guide rollers on the paper feed section rotate in reverse relative to the running paper, and the guide rollers on the folding section rotate in the normal direction, and the drive is controlled sequentially for each group. This is a guide roller cleaning method.
ここでグループの分け方は、紙コースとで、ある分岐点
から次の分岐点までを勘案し、その間で互いに近接し関
連したガイドローラをまとめるようにする．３本のガイ
ドローラを１グループとする場合には、給紙部側に近い
グループについては給紙部側の２本を逆転とし且つ最給
紙部側の回転数を中央より高くする．折機部側に近いグ
ループについては折機部側の２本を正転とし且つ最折機
部側の回転数を中央より高くする。４本のガイドローラ
を１グループとする場合には、給紙部側から順に逆転、
正転、逆転、正転とする．そして各グループ内でガイド
ローラによる紙引き張力がほぼ均衡するように回転数を
調整する．
本発明において各グループは、洗浄液の塗布部分の走行
状態に応じて回転動作が順次制御される．つまり給紙部
側から順に回転動作が始まり、また給紙部側から順に回
転動作が終了するようにする．
［作用］
輪転印刷機を紙通しのまま緩動運転し、ガイドローラの
周速を走行紙の速度と異なるように回転すると、ガイド
ローラに付着しているインキや祇粉等は走行紙によって
拭き取られる．汚れがひどい場合でも、走行紙が洗浄液
で湿らされているから、付着しているインキ等は溶け出
し容易に清掃できる．
１台の新聞用輪転印刷機には百数十本に達するガイドロ
ーラがあるから、それらを個々に制扉することは極めて
困難であるが、本発明では２〜４本からなるグループに
分け、グループ毎に駆動制御するため制御系は簡素化さ
れる．そしてグループ内で給紙部側のガイドローラは逆
転、折機部側のガイドローラは正転とし、各グループ内
で紙引き張力がほぼ均衡するように調節することによっ
て、全体として走行紙にかかる張力が激減し、断祇の発
生及び弛みの発生は防止される．これによって印刷部か
ら折機部まで１０〜２０ｍ程度に達する祇コース上で数
十本配設されたガイドローラの全部、もしくは大部分を
自動洗浄することが可能となる６またｍｅ運転時には走
行紙はゆっくりと移動するから、グループ毎に順次駆動
制御することで、洗浄液で湿らされた部分が近づいた時
に動作を開始し清浄化されたならば動作を順次停止させ
ていくことでシステム全体としてのエネルギー消費を抑
え付属設備の小型化と低廉化が図られる．
［実施例Ｊ
第１図は本発明方法の一例を示す説明図である．同図は
新聞用輪転印刷機の一部分であり、２台の印刷ユニット
の印刷部から折機部に至る部分を示している．
各印刷ユニットは、それぞれプランケ，ト胴ｌ２及び版
胴１３等からなる印刷部１４を傭えている．同図には示
されていないが、印刷部１４の下方には、第５図に示す
ものと同様、巻取′り紙を保持する給紙部がある．印刷
部１４で印刷された走行祇２０は多数のガイドローラ、
スリフタ−３０、ドラッグローラ３２ａ，・・・３２ｇ
、ターンパー３４等からなる複雑な祇コ−スを通って折
機部３６に達する．ここで便宜上ガイドローラには１０
１．・・・，１２６， ２０１，・・・，２３２の符号
を付す。ガイドローラの番号が１００番台のものは第１
の（第１図で右側の）印刷部に関連した祇コース上のも
のを示し、２００番台は第２の（第１図で左側の）印刷
部に関連した紙コース上のガイドローラを示す．
例えば第１の印刷部の場合、印刷された走行紙はガイド
ローラ１０１，・・・，１０６を通って案内され、スリ
ッタ−３０により切断が行われる．切断された紙は２種
類の紙コースを通る．一方はガイＦローラ１０７．川，
１１６で案内されて２つのドラッグローラ３ ２ ｂ，
３ ２ ｃを通り折機部３６のニップローラ３Ｂで
引かれる．スリソタ−３０で切断された走行紙の他方は
、ガイドローラ１１７，１１８で案内されターンパー３
４を通り、所定の向きに変換された後ガイドローラ１１
９，・・・．ｌ２２で案内され、ドラソグローラ３２ｄ
を通り、更にガイドローラ１２３，・・・．１２６で案
内されてドラッグローラ３２を通り折機部３６に入る．
第２の印刷部も基本的には同じようにしてガイドローラ
やスリソター ターンバー等を通って重ねられて折機部
３６に達する．
なお走行紙の通る紙コースは必ずしも一定ではなく、印
刷物の状Ｂ（例えば新聞紙の頁数やカラー印刷かモノク
ロ印刷か等）に応じて変更される．しかし使用頻度の高
い祇コースは大体定まっている．
本発明では印刷部から折機部に達する殆ど全てのガイド
ローラにそれぞれ駆動装置を設ける．この駆動装置とし
ては、大きさや重量、出力、制御性等から見てエアーモ
ータを用いることが望ましい．ガイドローラへの回転の
伝達は、例えばガイドローラ及びエアーモータに一対の
ギアーを取り付け、エアーシリンダで着脱を行う．さて
本発明の特徴は、輪転印刷機において紙コース上にある
多数のガイドローラを互いに近接した位置関係にある２
〜４本からなる複数のグループに分け、グループ毎に順
次駆動制御する点である．このグループ分けは、ある分
岐点から次の分岐点に至るまでのガイドローラを、近接
した位置関係にあること、および互いに関連性があるこ
と等を考慮して２〜４本となるように行う。例えば第１
の印刷部の場合、分岐点である印刷部１４と次の分岐点
であるドラノグローラ３２ａとの間の６本のガイドロー
ラ１０１，Ｉ０６を３グループＩＯＩＧ． ］０２Ｇ．
１０３ＧＧに分けている。またスリソタ−３０から分
かれた上方の祇コースでは、折機部３６に達するまでの
ｌＯ本のガイドローラを１０４Ｇ． ・・・． １０
８Ｇの５グループに分けている，スリソター３０とター
ンパー３４までの間の２本のガイドローラを１グループ
とし、ターンパー３４からドラソグローラ３２ｄまでの
４本のガイドローラを１グループＩＩＯＧとし、更にド
ラッグローラ３２ｄから折機部３６までの４本のガイド
ローラを２グルブＩＩＩＧ． １１２Ｇに分けている。Here, the method of grouping is to consider the paper course from one branch point to the next, and to group together related guide rollers that are close to each other. When three guide rollers are arranged in one group, the two guide rollers on the paper feeding section side are reversed in the group near the paper feeding section side, and the number of revolutions on the side of the nearest paper feeding section is set higher than that in the center. For the group closest to the folding machine side, the two on the folding machine side are set to rotate normally, and the rotation speed of the furthest folding machine side is set higher than that of the center. When using four guide rollers as one group, reverse rotation in order from the paper feed section side,
Forward rotation, reverse rotation, and forward rotation. Then, adjust the rotation speed so that the paper pulling tension by the guide rollers is almost balanced within each group. In the present invention, the rotational movement of each group is sequentially controlled according to the running state of the area to which the cleaning liquid is applied. In other words, the rotation operation starts from the paper feed section side and ends from the paper feed section side. [Function] When the rotary printing press is operated slowly while the paper is threaded, and the circumferential speed of the guide roller is rotated at a speed different from the speed of the running paper, the ink and flour adhering to the guide rollers are wiped away by the running paper. It is taken. Even if the paper is heavily soiled, since the running paper is moistened with cleaning fluid, the ink, etc. that has adhered to it will dissolve and can be easily cleaned. Since one newspaper rotary printing machine has over a hundred guide rollers, it is extremely difficult to control them individually, but in the present invention, they are divided into groups of 2 to 4 guide rollers. The control system is simplified because the drive is controlled for each group. Within each group, the guide rollers on the paper feed section side rotate in reverse, and the guide rollers on the folding machine side rotate in the normal direction. By adjusting the paper pulling tension within each group so that it is almost balanced, the overall tension is applied to the running paper. The tension is drastically reduced, preventing the occurrence of breakage and loosening. This makes it possible to automatically clean all or most of the dozens of guide rollers on the Gion course, which extends approximately 10 to 20 meters from the printing section to the folding machine section.6 Also, during ME operation, the running paper Because they move slowly, by sequentially controlling the drive for each group, the system as a whole can be improved by starting the operation when the area moistened with the cleaning liquid approaches and stopping the operation sequentially once the area has been cleaned. Energy consumption is reduced and attached equipment becomes smaller and less expensive. [Example J FIG. 1 is an explanatory diagram showing an example of the method of the present invention. The figure shows a part of a newspaper rotary printing machine, showing the parts of the two printing units from the printing section to the folding section. Each printing unit has a printing section 14 consisting of a plate cylinder 12, a plate cylinder 13, and the like. Although not shown in the figure, below the printing section 14 there is a paper feed section for holding a roll of paper, similar to the one shown in FIG. The running gill 20 printed by the printing unit 14 includes a large number of guide rollers,
Slifter 30, drag roller 32a,...32g
, a folding machine 36 is reached through a complicated course consisting of turners 34 and the like. Here, for convenience, the guide roller has 10
1. ..., 126, 201, ..., 232 are attached. Guide rollers with numbers in the 100s are the first
The number 200 indicates the guide roller on the paper course associated with the second (left side in Figure 1) printing section. For example, in the case of the first printing section, the printed running paper is guided through guide rollers 101, . . . , 106 and cut by a slitter 30. The cut paper passes through two types of paper courses. One side is Guy F Roller 107. river,
116 and two drag rollers 3 2 b,
3 2 c and is pulled by the nip roller 3B of the folding machine section 36. The other side of the running paper cut by the slit soter 30 is guided by guide rollers 117 and 118 and passed to the turner 3.
4 and is converted into a predetermined direction, the guide roller 11
9,... Guided by l22, Drasogrolla 32d
, and then the guide rollers 123, . 126 , passes through the drag roller 32 and enters the folding machine section 36 .
Basically, the second printing section is overlapped through guide rollers, slitting turn bars, etc., and reaches the folding machine section 36. Note that the paper course along which the running paper passes is not necessarily constant, but changes depending on the condition B of the printed material (for example, the number of pages of the newspaper, whether it is printed in color or monochrome, etc.). However, the most frequently used Gium courses are generally fixed. In the present invention, almost all guide rollers reaching from the printing section to the folding section are each provided with a drive device. It is desirable to use an air motor as this drive device in terms of size, weight, output, controllability, etc. Rotation is transmitted to the guide roller by, for example, attaching a pair of gears to the guide roller and air motor, and attaching and detaching the gears using an air cylinder. Now, the feature of the present invention is that in a rotary printing press, a large number of guide rollers on a paper course are arranged in two positions close to each other.
The point is that it is divided into multiple groups of ~4 rods, and the drive is controlled sequentially for each group. This grouping is done so that there are 2 to 4 guide rollers from one branch point to the next, taking into account that they are in close position and that they are related to each other. . For example, the first
In the case of the printing section, the six guide rollers 101 and I06 between the printing section 14, which is a branching point, and the drano roller 32a, which is the next branching point, are arranged in three groups IOIG. ]02G.
It is divided into 103GG. In addition, in the upper course separated from the slitting machine 30, 10 guide rollers are arranged at 104 G. until reaching the folder section 36. .... 10
The two guide rollers between the slit roller 30 and the turner 34, which are divided into five groups of 8G, are one group, the four guide rollers from the turner 34 to the drag roller 32d are one group IIOG, and the drag roller 32d is divided into five groups. The four guide rollers from to the folding machine section 36 are connected to two groups IIIG. It is divided into 112G.
ここで各グループ内では給紙側のガイドローラは逆転、
折機部側のガイドローラは正転とし，各グループ内部で
紙引き張力がほぼ７１′ランスするように回転数を設定
する．
その状態を第２図へ・第４図に示す。第２図はグループ
２０１Ｇの部分である．この例ではガイドローラ２０１
， ２０２をグループ２０１Ｇとしている．給紙部側
のガイドローラ２０１ は走行紙に対して逆転、折機部
側のガイドローラ２０２は正転になっており、それぞれ
のガイドローラにより走行紙に加わる張力をＴ，，Ｔ．
とした時、”ｒ，＃Ｔ．もしくは僅かにＴＩ ＞Ｔ２と
なるように設定する．なお符号４０は走行祇２０に洗浄
液を塗布するための洗浄液塗布装置である。Here, within each group, the guide rollers on the paper feed side are reversed,
The guide roller on the folding machine side rotates normally, and the rotation speed is set so that the paper pulling tension within each group is approximately 71' lance. The state is shown in Fig. 2 and Fig. 4. Figure 2 shows the part of group 201G. In this example, the guide roller 201
, 202 is set as group 201G. The guide roller 201 on the paper feed section side rotates in the reverse direction with respect to the running paper, and the guide roller 202 on the folding machine side rotates in the normal direction.
When ``r, #T.'' or slightly TI>T2, the setting is made such that TI>T2. Reference numeral 40 is a cleaning liquid application device for applying cleaning liquid to the running gill 20.
この部分は紙コースによっては第３図に示すように３本
のガイドローラ２０１，２０２，２０３を１グループと
することもできる．その場合にはこのグループ番τ給砥
部側に近いグループであるため、給紙部側の２本のガイ
ドローラ２０１．２０２を逆転とし折機部側のガイドロ
ーラ２０３を正転とする。Depending on the paper course, three guide rollers 201, 202, and 203 can be arranged in one group as shown in FIG. In this case, since this group number τ is a group close to the grinding section side, the two guide rollers 201 and 202 on the sheet feeding section side are rotated in reverse rotation, and the guide roller 203 on the folding machine side is rotated in the normal direction.
そして最給紙部側ガイドローラ２０１ の回転数を中央
のガイドローラ２０２の回転数よりも高くし、且つそれ
ぞれのガイドローラによって走行祇に加わる張力をＴ３
．Ｔ４． ′ｒｓ とした時、′■゛３＋”ｒ４ ＝
Ｔ，もしくは僅かニＴ ， ＋ Ｔ ． ＞ Ｔ ，
となるように設定する．
第４図は３本のガイドローラ２２２，２２３．２２４が
折機部側に近い場合のグループ２１１Ｇを示している．
このような場合には給紙部側のガイドローラ２２２を逆
転とし、折機部側の２本のガイトローラ２２３，２２４
を正転とする。そし，ζ、それぞれのガイドローラによ
って走行紙に加わる張力をＴｈ．Ｔ？ ，Ｔｏ とした
時、Ｔ＆ ’−＝Ｔ，＋Ｔ．もしくは僅かにＴ＆＜Ｔｔ
＋Ｔａ となるように張力の調整を行う．
さて本発明では同一グループのモータは同時に駆動され
、且つそれぞれのグループを独立に制御できるようにな
っている。版換え時又は印刷終了時等、定期的に次のよ
うにしてガイド［：１−ラの洗浄を行う．先ず輪転印刷
機を紙通しのまま緩動運転する．このとき走行紙の速度
は毎分数ｍ程度のゆっくりしたものである。取付けスペ
ースの関係上、一般的には印刷部のやや給紙部側に設け
た洗浄液塗布装１４０により走行紙２０に適宜洗浄液を
塗布する．例えばスポンジタッチ方式あるいはスプレ一
方式等により数十ｃ＠間隔で走行紙を数回にわたり湿ら
せる．走行紙の溶剤付着部分がガイドローラに近づくに
つれて、その近傍のグループが順次回転動作に入る．そ
してガイドローラに付着しているインキや紙粉等が走行
紙の溶剤付着部分で溶かされ、同時に走行紙とガイドロ
ーラの周速との差によって拭き取られる。Ｗｔ帰された
ガイドローラのグループは順次その回転動作を停止する
．このように順次グループを選択して駆動すると、実際
に駆動されているガイドローラ本数は最大でもガイドロ
ーラ総本数の半分程度に収まるため、エアーモータの空
気消費率を低減し付帯設備の小型化並びに低廉化を実現
できる．各グループ内において紙引き張力がほぼ均衡し
ているため、グループ外に悪影響を及ぼし難く、紙の弛
みや紙断等は生じない．例えばグループＩＯＩＧではガ
イドローラ１０１ が逆転、ガイドローラ１０２が正転
であり、張力がほぼ等しくなっているため中央では打ち
消されグループ１０１Ｇの外には影響を及ぼさない．し
かもガイドローラ１０１，１０２共に走行紙が強く巻き
付く方向に作用し洗浄効果も大きくなる．従って回転数
が小さくても十分な洗浄を行わせることができ、空気消
費量ひいては電気消費量を低減できる．このことはガイ
ドローラの本数が多いだけに極めて重要である．また給
紙部側に近い方のグループほど極く僅かに逆転の張力を
強くし、また折磯部側に近いグループほど掻く僅かに正
転の張力を強くすることにより、グループ間の緩みを防
止して、より確実に洗浄を行う．なお張力の片寄りを極
く僅かに設定するかぎり断祇には結びつかず、長い紙コ
ースでも特別なニップローラ等を設けなくても従来その
ままの装置構成で緩動運転を行なえることになり、実際
の印刷作業を妨害するような装置の付加が要らず、この
点でも好ましいものといえる。Then, the number of rotations of the guide roller 201 on the side of the most paper feed section is set higher than the number of rotations of the center guide roller 202, and the tension applied to the traveling roller by each guide roller is set to T3.
．． T4. ′rs, ′■゛3+”r4=
T, or slightly d T, + T. ＞T,
Set it so that FIG. 4 shows a group 211G in which the three guide rollers 222, 223, and 224 are close to the folding machine side.
In such a case, the guide roller 222 on the paper feed section side is reversed, and the two guide rollers 223, 224 on the folding machine side are
is normal rotation. Then, ζ, the tension applied to the running paper by each guide roller is Th. T? , To, T&'-=T, +T. Or slightly T&<Tt
Adjust the tension so that it is +Ta. Now, in the present invention, the motors of the same group are driven simultaneously, and each group can be controlled independently. Clean the guide [:1-RA] periodically when changing plates or when printing is finished, etc., as follows. First, run the rotary printing press slowly while threading the paper. At this time, the speed of the traveling paper is slow, about several meters per minute. Due to installation space limitations, cleaning liquid is generally applied to the running paper 20 as appropriate using a cleaning liquid application device 140 provided slightly closer to the paper feeding unit than the printing unit. For example, moisten the running paper several times at intervals of several tens of centimeters using a sponge touch method or a spray method. As the solvent-adhered portion of the running paper approaches the guide roller, the groups in the vicinity begin to rotate one after another. Ink, paper powder, etc. adhering to the guide roller are dissolved by the solvent-adhered portion of the running paper, and simultaneously wiped off by the difference between the circumferential speeds of the running paper and the guide roller. The groups of guide rollers that have been returned to their original position sequentially stop their rotational movements. When groups are selected and driven in sequence in this way, the number of guide rollers actually being driven is at most about half of the total number of guide rollers, which reduces the air consumption rate of the air motor and allows for the miniaturization of incidental equipment. Cost reduction can be achieved. Since the paper pulling tension is almost balanced within each group, it is unlikely to have a negative effect on the outside of the group, and no paper slack or paper breakage will occur. For example, in group IOIG, the guide roller 101 rotates in the reverse direction and the guide roller 102 rotates in the normal direction, and since the tensions are approximately equal, they are canceled in the center and have no effect on areas outside the group 101G. Moreover, both the guide rollers 101 and 102 act in a direction in which the running paper is tightly wound around, thereby increasing the cleaning effect. Therefore, sufficient cleaning can be performed even at a low rotational speed, and air consumption and electricity consumption can be reduced. This is extremely important since there are a large number of guide rollers. In addition, groups closer to the paper feed section have a slightly stronger reverse rotation tension, and groups closer to the folding surface have a slightly stronger forward rotation tension to prevent loosening between groups. for more reliable cleaning. As long as the tension is set to a very small deviation, it will not lead to breakage, and even on long paper courses, slow motion operation can be performed with the conventional device configuration without the need for special nip rollers, etc., and in practice. It is preferable in this respect as it does not require the addition of any equipment that would interfere with the printing work.
３本のガイドローラを１グループとする場合、給紙部に
近いグループについては前記のように給紙部側の２本は
逆転とし最給紙部側は中央より回転数を高くし、掻く僅
かに逆転の張力を高めている．これによって走行紙をガ
イドローラに対しより一層密着させ、汚れの甚だしい個
所の洗浄効果を高めている．折機部側に近いグループに
ついては比較的汚れが少ないから、折機部側の２本を正
転とし、最折機部側は中央より回転数を高くし且つ極く
僅か逆転の張力を高めにすることによって、より全体の
密着度を高め洗浄効果を上げている．また４本のガイド
ローラを１グループとする場合は、■グループ内に逆転
と正転の組み合わせを２ｍ作り同時作動させたものと同
等である．これは特に紙コース上で極めて近接した位置
に４本のガイドローラがある場合、例えばグループ１１
０Ｇ等に適用し、グループ総数を少なくしてシステムの
コストを低減させる点で有効である．
実際の新聞用輪転印刷機においては、前述したように紙
コースは必ずしも一定でなく、カラ一印刷とモノクロ印
刷の場合、また頁数等によって祇コースは異なる。従っ
て実際にはそれらの祇コースを総合的に検討し、グルー
プ分けを決定する．そのためグループ分けは必ずしも固
定したものとせず、紙コースに応じて異なるグループ分
けとし、そのグループ毎に駆動制御する方法が望ましい
．また・全てのガイドローラを洗浄するのが理想的であ
るが、通常ほとんど使用しないものもあるため、使用頻
度の高いガイドローラについてのみ本発明方法を適用し
てもよい．
実際にはガイドローラのグループ分けとその駆動タイミ
ングの決定は、カラー印刷かモノクロ印刷か、真数（朝
刊用と夕刊用等）及び洗浄の時間やタイミング等をプロ
グラムしておき、制御盤から祇コースや汚れの状態に応
じた洗浄剤の量等を入力することによって、自動的に洗
浄を行うシステムとする．
［発明の効果］
本発明は上記のように多数のガイドローラを複数のグル
ープに分け、各グループ内で給紙部側は逆転、折機部側
は正転とし且つグループ毎に順次駆動制御するように構
成した輪転印刷機のガイドローラ洗浄方法であるから、
紙切り、再通し作業を行うことなく多数のガイドローラ
を短時間で洗浄することができる．特にグループ内で紙
引き張力が打ち消し合うようになっているから、ガイド
ローラの本数が多くても、給紙速度が変化したり、紙断
等の不都合が生じることはない。断紙が生しないため作
業性は極めて良好なものとなる．
また緩動運転でグループ毎に順次駆動制御するため、洗
浄動作を行っているガイドローラの本数はガイドローラ
総本数よりも少なく、駆動に必要なエネルギーを低減し
、各種付帯設備を小型化、低廉化できる．更に複数のグ
ループに分けたことにより、ガイドローラの回転駆動を
制御するための制御系の負担は大幅に軽減される。When three guide rollers are in one group, the two guide rollers on the paper feeding section side are reversed as described above for the group near the paper feeding section, and the number of revolutions on the closest paper feeding section side is higher than that in the center, so that the number of rotations is higher than that of the center one. The reversal tension is increased. This allows the running paper to come into closer contact with the guide rollers, increasing the effectiveness of cleaning heavily soiled areas. The group closest to the folding machine side has relatively little dirt, so the two on the folding machine side are set to rotate in the normal direction, and the number of revolutions on the furthest folding machine side is set higher than that in the center, and the reverse tension is increased very slightly. This increases the overall adhesion and improves the cleaning effect. In addition, if four guide rollers are grouped into one group, it is equivalent to (1) creating a combination of reverse rotation and forward rotation for 2 m within the group and operating them simultaneously. This is especially true when there are four guide rollers located very close to each other on the paper course, for example group 11.
It is effective in reducing the total number of groups and reducing system costs when applied to 0G, etc. In an actual newspaper rotary printing press, the paper course is not necessarily constant as described above, and the paper course differs depending on the case of color printing and monochrome printing, the number of pages, etc. Therefore, in reality, we will comprehensively consider these Gium courses and decide on groupings. Therefore, it is preferable to divide the paper into different groups depending on the paper course, and to control the drive for each group, rather than necessarily using a fixed grouping method. Additionally, although it is ideal to clean all guide rollers, since some are rarely used, the method of the present invention may be applied only to guide rollers that are frequently used. In reality, the grouping of guide rollers and their drive timing are determined by programming the color printing or monochrome printing, the number of pages (for morning edition, evening edition, etc.), cleaning time and timing, etc. from the control panel. The system automatically performs cleaning by inputting the amount of cleaning agent depending on the course and dirt condition. [Effects of the Invention] As described above, the present invention divides a large number of guide rollers into a plurality of groups, and within each group, the paper feed section side rotates in reverse, the folding machine side rotates in normal direction, and the drive is controlled sequentially for each group. Since this is a guide roller cleaning method for a rotary printing press configured as follows,
A large number of guide rollers can be cleaned in a short time without paper cutting or rethreading. In particular, since the paper pulling tensions cancel each other out within the group, even if there are a large number of guide rollers, there will be no change in paper feeding speed or problems such as paper breakage. Workability is extremely good because no paper breaks occur. In addition, since the drive is controlled sequentially for each group in slow operation, the number of guide rollers being cleaned is less than the total number of guide rollers, reducing the energy required for driving and making various auxiliary equipment smaller and cheaper. It can be converted into Furthermore, by dividing into a plurality of groups, the burden on the control system for controlling the rotational drive of the guide rollers is significantly reduced.
機のガイドローラの完全な自動洗浄を実現できることに
なる．This will enable completely automatic cleaning of the machine's guide rollers.
第１図は本発明方法の一実施例を示す説明図、第２図、
第３図、第４図はそれぞれ洗浄時にガイドローラによっ
て走行紙に働く張力の説明図、第５図は新聞用輪転印刷
機の全体構成を示す説明図である．
ｌ２・・・ブランケット胴、１３・・・版胴、１４・・
・印刷部、１８・・・給紙部、２０・・・走行紙、１０
１，・・・１２６， ２０１．・・・．２３２・・・ガ
イドローラ、３０・・・スリソタ− ３２ａ．・・・１
３２ｇ・・・ドラノグローラ、３４・・・ターンパー
３６・・・折機部、３８・・・ニノブローラ。
特許出願人 ニツカ株式会社
代FIG. 1 is an explanatory diagram showing one embodiment of the method of the present invention, FIG.
FIGS. 3 and 4 are explanatory diagrams of the tension exerted on running paper by guide rollers during cleaning, respectively, and FIG. 5 is an explanatory diagram showing the overall configuration of a newspaper rotary printing press. l2... Blanket cylinder, 13... Plate cylinder, 14...
・Printing section, 18... Paper feeding section, 20... Running paper, 10
1,...126, 201.・・・． 232...Guide roller, 30...Slisoter 32a. ...1
32g...Drano Glora, 34...Turnper 36...Folding machine section, 38...Nino Roller. Patent applicant: Nitsuka Corporation
Claims (1)
浄液を塗布して湿らせ、該走行紙に接触しているガイド
ローラを、その周速が走行紙の速度と異なるように回転
して走行紙で汚れを拭き取る方法において、輪転印刷機
の紙コース上にある多数のガイドローラを、互いに近接
した位置関係にある２〜４本からなる複数のグループに
分け、各グループ内で給紙部側のガイドローラは走行紙
に対して逆転、折機部側のガイドローラは正転とし、グ
ループ毎に順次駆動制御することを特徴とする輪転印刷
機のガイドローラ洗浄方法。 ２、各グループ内でガイドローラによる紙引き張力がほ
ぼ均衡している請求項１記載のガイドローラ洗浄方法。 ３、３本のガイドローラを１グループとする場合、給紙
部側に近いグループについては給紙部側の２本を逆転と
し且つ最給紙部側の回転数を中央より高くし、折機部側
に近いグループについては折機部側の２本を正転とし且
つ最折機部側の回転数を中央より高くする請求項１又は
２記載のガイドローラ洗浄方法。 ４、４本のガイドローラを１グループとする場合、給紙
部側から順に逆転、正転、逆転、正転とする請求項１又
は２記載のガイドローラ洗浄方法。[Claims] 1. The rotary printing machine is operated slowly while the paper is being threaded, and the running paper is coated with a cleaning liquid to moisten it. In this method, a large number of guide rollers on the paper course of a rotary printing press are divided into groups of 2 to 4 guide rollers located close to each other in a method of wiping dirt with a running paper that rotates at a speed different from that of the rotary printing machine. A guide for a rotary printing press characterized in that within each group, the guide rollers on the paper feed section side rotate in reverse with respect to the running paper, and the guide rollers on the folding machine side rotate in the normal direction, and the drive is controlled sequentially for each group. Roller cleaning method. 2. The guide roller cleaning method according to claim 1, wherein the paper pulling tension by the guide rollers is approximately balanced within each group. When 3 or 3 guide rollers are in one group, the two guide rollers on the paper feed section side are reversed for the group near the paper feed section side, and the rotation speed of the closest paper feed section side is set higher than that of the center, and the folding machine 3. The guide roller cleaning method according to claim 1, wherein for the group near the folding machine side, the two guide rollers on the folding machine side rotate normally, and the number of revolutions on the furthest folding machine side is higher than that at the center. 3. The guide roller cleaning method according to claim 1, wherein when four or four guide rollers are grouped into one group, reverse rotation, normal rotation, reverse rotation, and normal rotation are performed in order from the sheet feeding section side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5875489A JPH02235639A (en) | 1989-03-09 | 1989-03-09 | Washing of guide roller of rotary press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5875489A JPH02235639A (en) | 1989-03-09 | 1989-03-09 | Washing of guide roller of rotary press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02235639A true JPH02235639A (en) | 1990-09-18 |
| JPH0446756B2 JPH0446756B2 (en) | 1992-07-30 |
Family
ID=13093327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5875489A Granted JPH02235639A (en) | 1989-03-09 | 1989-03-09 | Washing of guide roller of rotary press |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02235639A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013084679A (en) | 2011-10-06 | 2013-05-09 | Hosiden Corp | Terminal box for solar cell module |
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| JPS62149449A (en) * | 1985-12-25 | 1987-07-03 | Tokyo Kikai Seisakusho:Kk | Guide roller cleaning and its device for rotary press |
| JPS62256657A (en) * | 1986-04-30 | 1987-11-09 | Nikka Kk | Method for washing guide roller of rotary press |
| JPH01204740A (en) * | 1988-02-10 | 1989-08-17 | Nippon Baldwin Kk | Apparatus for automatically washing web guide roller |
| JPH01209139A (en) * | 1988-02-18 | 1989-08-22 | Tokyo Kikai Seisakusho Ltd | Guide roller apparatus in rotary press |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62132644A (en) * | 1985-12-04 | 1987-06-15 | Tokyo Kikai Seisakusho:Kk | Washing method for rotary printing machine and its device |
| JPS62149449A (en) * | 1985-12-25 | 1987-07-03 | Tokyo Kikai Seisakusho:Kk | Guide roller cleaning and its device for rotary press |
| JPS62256657A (en) * | 1986-04-30 | 1987-11-09 | Nikka Kk | Method for washing guide roller of rotary press |
| JPH01204740A (en) * | 1988-02-10 | 1989-08-17 | Nippon Baldwin Kk | Apparatus for automatically washing web guide roller |
| JPH01209139A (en) * | 1988-02-18 | 1989-08-22 | Tokyo Kikai Seisakusho Ltd | Guide roller apparatus in rotary press |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0446756B2 (en) | 1992-07-30 |
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