JPH06297693A - Inferior printing paper discharge device - Google Patents
Inferior printing paper discharge deviceInfo
- Publication number
- JPH06297693A JPH06297693A JP5109843A JP10984393A JPH06297693A JP H06297693 A JPH06297693 A JP H06297693A JP 5109843 A JP5109843 A JP 5109843A JP 10984393 A JP10984393 A JP 10984393A JP H06297693 A JPH06297693 A JP H06297693A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- paper
- defective
- signal
- pulse
- 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
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、不良印刷紙の排出に関
し、特に不良印刷紙排出量の最適化に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to discharging defective printed paper, and more particularly to optimizing the amount of defective printed paper discharged.
【０００２】[0002]
【従来の技術】従来の新聞印刷にあっては、例えば図１
に示すように複数の輪転機１ａ、１ｂ、１ｃ、１ｄ、１
ｅで所定頁毎に印刷された新聞が折り機４を通って切断
され、多重に折り込まれた後、コンベアなどで搬送さ
れ、梱包された後、トラックヤードから搬出される。こ
のとき、各輪転機１ａ、１ｂ、１ｃ、１ｄ、１ｅから折
り機４にまで印刷紙面が流れるコース自体は一定の距離
あるいは一定の収容部数を有するが、新聞の頁数やカラ
ー印刷の有無によってコースが各種に組み合わせられる
ので、実際の運転時に印刷紙面が流れる距離はその都度
変動する。2. Description of the Related Art In conventional newspaper printing, for example, FIG.
A plurality of rotary presses 1a, 1b, 1c, 1d, 1
At e, the newspaper printed on every predetermined page is cut through the folding machine 4, folded in multiples, conveyed by a conveyor or the like, packed, and then carried out from the truck yard. At this time, the course itself on which the printing paper surface flows from the rotary presses 1a, 1b, 1c, 1d, 1e to the folding machine 4 has a certain distance or a certain number of sheets to be stored, but depending on the number of newspaper pages and the presence or absence of color printing. Since the courses can be combined in various ways, the distance that the printing paper surface flows during actual driving changes each time.
【０００３】新聞印刷には、印刷立上りにおけるインキ
量不適性、印刷濃度のばらつきによる濃淡不良、しみ、
よごれ、欠け、潰れ、穴などのスポット欠点があり、こ
れらの欠陥を有する新聞を不良印刷紙としてリジェクト
装置６によりラインから排出除去しなければならない。In newspaper printing, inadequate ink amount at the start of printing, shading due to variations in printing density, stains,
There are spot defects such as dirt, chips, crushes and holes, and newspapers having these defects must be discharged and removed from the line by the reject device 6 as defective printing paper.
【０００４】印刷立上りにおいては、新聞が複数の輪転
機１ａ、１ｂ、１ｃ、１ｄ、１ｅで印刷された紙面で構
成される場合、輪転機１ａ、１ｂ、１ｃ、１ｄ、１ｅの
印刷立上りが全て適性になったときに製品として合格す
る。合格前に各輪転機１ａ〜１ｅから出た紙面は全て不
良印刷紙となる。In the printing start-up, when the newspaper is composed of papers printed by a plurality of rotary presses 1a, 1b, 1c, 1d, 1e, all the printing start-ups of the rotary presses 1a, 1b, 1c, 1d, 1e. Pass as a product when it becomes suitable. Before the pass, all the paper surfaces from the rotary presses 1a to 1e are defective printing papers.
【０００５】また、新聞印刷の立上りが正常になった後
に印刷濃度不良、しみ、よごれ、欠け、潰れ、穴などの
スポット欠点が生じた場合、これら欠陥を有する新聞を
不良印刷紙としてラインから除去しなければならない。
これらの立上り判断や欠陥紙面の除去は、多数の作業員
が抜き取り検査により行っている。When spot defects such as defective print density, stains, dirt, chips, crushes, and holes occur after the normal start-up of newspaper printing, newspapers having these defects are removed from the line as defective print paper. Must.
A large number of workers carry out sampling inspections to judge the rise and remove defective paper.
【０００６】[0006]
【発明が解決しようとする課題】新聞印刷立上りにおけ
るインキ量不適性は、その前の印刷作業の影響によるも
ので、印刷開始直後においてインク量制御装置の作用が
及ぶ前に、過度のインキ（例えば、前の印刷作業で残っ
たインキ）のために文字が読み取れない程に新聞全体が
黒くなってしまったり、逆にインキの全く無いところか
ら始動し、インキが行き届く前に、白ないし淡い状態が
続いてしまうことをいう。このインキ量不適性は、新聞
用紙が輪転機に噛み込まれた状態で印刷開始する以上避
けられない。すなわち、輪転機に噛み込まれた新聞用紙
には一定長さの印刷されない白紙部分あるいは前の印刷
作業で残ったインキを刷り取る部分があり、そして、紙
面全面にインキを適正に行き渡らせるための過度区間が
あり、その後に定常的な安定区間になって一定となる。
ここで、インキ量が少なかったり、湿し水量が多い場合
は、印刷が淡くなり、インキ量が多かったり、湿し水量
が少ない場合は、印刷が濃くなる。新聞印刷の立上り判
定には、このような濃淡までも含まれていることがあ
る。The inadequate ink amount at the start of newspaper printing is due to the influence of the previous printing operation, and an excessive amount of ink (for example, ink) is exerted immediately after the start of printing and before the action of the ink amount control device takes effect. , The ink left in the previous printing work) makes the whole newspaper black so that the characters cannot be read, or conversely, start from a place where there is no ink, and the white or pale state before the ink reaches the end. It means to continue. This inadequate amount of ink is unavoidable as long as printing is started with the newsprint being caught in the rotary press. That is, the newsprint bitten into the rotary press has a certain length of unprinted white paper or a portion where the ink left over from the previous printing operation is printed, and in order to spread the ink properly over the entire surface of the paper. There is an excessive section, and then it becomes a steady stable section and becomes constant.
Here, when the amount of ink is small or the amount of dampening water is large, the printing becomes light, and when the amount of ink is large or the amount of dampening water is small, the printing becomes dark. Such a shade may be included in the start-up determination of newspaper printing.
【０００７】かかる新聞印刷の過度区間から正常な定常
印刷区間になった瞬間を適確に検査した結果を、不良印
刷紙排出装置に適確に伝達し、不良印刷紙排出を終了し
なければならない。It is necessary to accurately transmit the result of an accurate inspection of the moment when the excessive interval of newspaper printing is changed to the normal steady printing interval to the accurate output of the defective printing paper discharging device to end the discharging of the defective printing paper. .
【０００８】複数の輪転機からの新聞紙面が多重に折り
込まれる場合、各輪転機の立上りが揃わないために、一
台の輪転機からの紙面の印刷にインキ不適性があると、
折り込まれた新聞全体が不良印刷紙となってしまう。従
って、すべての輪転機について、印刷立上り合格判定し
たら直ちに、不良印刷紙排出を終了しなければならな
い。When newspaper sheets from a plurality of rotary presses are folded in multiple layers, the rise of each rotary press is not uniform, so that there is an ink unsuitability for printing on the paper surface from one rotary press.
The entire folded newspaper becomes defective printing paper. Therefore, for all the rotary presses, the defective printing paper discharge must be finished immediately after the printing start-up pass judgment is made.
【０００９】また、定常印刷においては、前述のような
欠陥を有する不良印刷紙を逐次ラインから排出除去しな
ければならない。In regular printing, defective printing paper having the above-mentioned defects must be successively discharged and removed from the line.
【００１０】しかし、新聞印刷立上りや欠陥の判断が人
の肉眼に依存する場合、多量のマンパワーが必要であ
り、また必ずしも適確な判断がされるとは限らない。こ
のため、印刷立上り後の正常な新聞を不良印刷紙として
排出してしまったり、不良印刷紙として除去すべき新聞
がしばしば正常な新聞の中に混入してしまう。However, a large amount of manpower is required when the start of newspaper printing and the determination of defects depend on the unaided human eye, and the determination is not always accurate. For this reason, a normal newspaper after the start of printing is discharged as a defective printing paper, or a newspaper to be removed as a defective printing paper is often mixed into a normal newspaper.
【００１１】そのため、印刷機ごとに印刷胴直後にＣＣ
Ｄ撮像機で印刷立上りを検出し判断することが提案され
ているが、合格判定結果の新聞印刷紙が排紙装置に到達
するまでに排出する新聞の部数を適正化することが要求
される。この部数が適正でないと、高速印刷機では、多
数の正常な印刷紙が排出されてしまったり、多数の不良
印刷紙が製品として搬出されてしまうからである。For this reason, CC is set immediately after the printing cylinder for each printing machine.
Although it has been proposed that the D image pickup device detects and determines the start-up of printing, it is required to optimize the number of newspapers to be ejected before the newsprint paper of the acceptance determination result reaches the paper ejection device. This is because if the number of copies is not appropriate, a large number of normal printing papers will be discharged or a large number of defective printing papers will be carried out as products in the high-speed printing machine.
【００１２】また、新聞印刷が正常になった後は、新聞
印刷の欠陥を検出し、不良印刷紙を適確に排出する場合
もＣＣＤ撮像機の利用が提案されているが、この場合に
も、不良印刷紙が排紙装置に到達する時期を正確に判断
することが要求される。Further, it has been proposed to use a CCD image pickup device to detect defects in newspaper printing after newspaper printing has become normal and to properly eject defective printing paper. However, it is required to accurately determine the time when the defective printing paper reaches the paper discharge device.
【００１３】従って、本発明は、印刷の立上り時の不良
印刷紙と正常印刷時の不良印刷紙を適確に排出する排紙
装置を提供することを目的とする。Accordingly, it is an object of the present invention to provide a paper discharge device for accurately discharging defective print paper at the start of printing and defective print paper at the time of normal printing.
【００１４】[0014]
【課題を解決するための手段】上記目的を達成するため
に、本発明の印刷立上り不良印刷紙排出装置は、印刷機
の印刷胴を出た後に印刷紙面をコラムのような印刷単位
ごとに検査する印刷検査装置と、その検査結果に基づき
不良印刷紙を排出する排紙装置と、印刷機から排紙装置
への印刷紙の移動距離に対応してパルス信号を発信する
パルス発信装置とからなり、印刷胴後の印刷検査装置に
より検出した初期印刷立上り合格判定紙を立上り信号と
して把握し、該立上り信号が出されてから排紙装置に当
該合格判定紙が到着するまでのパルス信号数を学習し、
前記パルス信号発信装置から発信されるパルス信号数が
前記立上り信号から前記学習パルス信号数に達した点で
排紙装置の排出運転を停止する構成とする。In order to achieve the above-mentioned object, the printing start-up defective printing paper discharging apparatus of the present invention inspects the printing paper surface for each printing unit such as a column after exiting the printing cylinder of the printing machine. A printing inspection device, a paper ejection device that ejects defective printing paper based on the inspection result, and a pulse transmission device that emits a pulse signal corresponding to the movement distance of the printing paper from the printing machine to the paper ejection device. , Grasping the initial print rise acceptance judgment paper detected by the print inspection device after the printing cylinder as a rise signal, and learning the number of pulse signals from when the rise signal is output until the pass judgment paper arrives at the paper discharge device. Then
The discharge operation of the paper discharge device is stopped when the number of pulse signals transmitted from the pulse signal transmission device reaches the number of learned pulse signals from the rising signal.
【００１５】また、本発明の印刷正常時における不良印
刷紙排出装置は、印刷機の印刷胴を出た後に印刷紙面を
コラムのような印刷単位ごとに検査する印刷検査装置
と、その検査結果に基づき不良印刷紙を排出する排紙装
置と、印刷機から排紙装置への印刷紙の移動距離に対応
してパルス信号を発信するパルス信号発信装置と、から
なり、印刷胴の後の印刷検査装置により検出した不良印
刷紙を印刷不良信号として把握し、この印刷不良信号が
出てから排紙装置に当該不良印刷紙が到着するまでのパ
ルス信号数を学習し、前記パルス信号発信装置が発信す
るパルス信号数が前記印刷不良信号にかかわる前記学習
パルス信号数を含む一定範囲内にあるとき印刷紙面を排
紙装置から排出させる構成とする。Further, the defective printing paper ejecting device at the time of normal printing according to the present invention includes a printing inspection device for inspecting the printing paper surface for each printing unit such as a column after exiting the printing cylinder of the printing press, and the inspection result. The print inspection after the printing cylinder consists of a paper ejection device that ejects defective printing paper based on the above, and a pulse signal transmission device that emits a pulse signal corresponding to the movement distance of the printing paper from the printing machine to the paper ejection device. The defective printing paper detected by the device is grasped as a printing defective signal, and the number of pulse signals from when the defective printing signal is output until the defective printing paper arrives at the paper discharge device is learned, and the pulse signal transmitting device transmits the signal. When the number of pulse signals to be output is within a certain range including the number of learning pulse signals related to the print failure signal, the printing paper surface is ejected from the paper ejection device.
【００１６】また、不良印刷紙が連続する場合における
本発明の不良印刷紙排出装置は、最先の印刷不良信号に
かかわる前記学習パルス信号数を含む一定範囲の最先端
から、最後の印刷不良信号にかかわる前記学習パルス信
号数を含む一定範囲の最終端までの間、印刷紙面を排紙
装置から排出させる構成とする。Further, in the defective printing paper ejecting apparatus of the present invention when defective printing papers are continuous, the defective printing paper signal from the leading end of a certain range including the learning pulse signal number related to the earliest printing failure signal to the last printing failure signal. The printing paper surface is discharged from the paper discharge device until the end of a certain range including the number of learning pulse signals related to the printing paper.
【００１７】さらに本発明の印刷立上り不良印刷紙排出
装置を複数の印刷機からの印刷紙面が多重に折り込まれ
る場合に使用する時、各印刷機後の印刷検査装置より立
上り信号が出されてから当該不良印刷紙が排紙装置に到
着するパルス信号数を各印刷機ごとに学習し、すべての
印刷機についてパルス信号発信装置が発信するパルス信
号数が前記立上り信号から前記学習パルス信号数に達し
たときに、排紙装置の作動終了を行う構成とする。Further, when the printing paper ejection device of the present invention having a defective printing start-up is used when the printing paper sheets from a plurality of printing presses are folded in multiple layers, after the rising signal is output from the printing inspection device after each printing press. The number of pulse signals at which the defective printing paper arrives at the paper discharge device is learned for each printing machine, and the number of pulse signals transmitted by the pulse signal transmission device for all printing machines reaches the learned pulse signal number from the rising signal. When this happens, the operation of the paper discharge device is terminated.
【００１８】印刷検査装置には、ＣＣＤ撮像機が適して
いる。A CCD imager is suitable for the print inspection device.
【００１９】[0019]
【作用】印刷の立上り合否判定や欠陥検出は、印刷機の
印刷胴を出た後の印刷紙面を印刷検査装置、例えばＣＣ
Ｄ撮像機で検査し、印刷画線面積または濃度を原画情報
と比較判定することにより行われる。そして、立上り判
定や欠陥検出の信号が、比較判定に基づいてアラーム装
置や排紙装置に送られる。When the print start / fail judgment is performed and the defect is detected, the printing paper surface after exiting the printing cylinder of the printing machine is inspected by a printing inspection device such as CC.
It is performed by inspecting with a D imaging device and comparing and determining the printed image area or density with the original image information. Then, the signals for the rise determination and the defect detection are sent to the alarm device and the paper discharge device based on the comparison determination.
【００２０】印刷ラインは、印刷内容によってコースが
変えられる。従って、例えば立上り時の信号や欠陥検出
の信号が発信されてからの時間により排紙装置を停止し
たり起動して排出除去を行うと、コースによるばらつき
が大きくなり、小数の不良印刷紙を除去するのに多数の
正常印刷紙をも除去してしまうことになる。例えば１部
の不良印刷紙を排出するのに５０部の正常印刷紙が排出
されてしまうこともあるので、不良印刷紙排出の適正な
管理が困難である。The course of the print line can be changed depending on the print content. Therefore, for example, if the paper discharge device is stopped or started and the paper is discharged and removed depending on the time after the start-up signal or the defect detection signal is transmitted, the variation due to the course becomes large, and a small number of defective printing papers are removed. However, many normal printing papers are also removed. For example, since 50 copies of normal printing paper may be discharged even if one copy of defective printing paper is discharged, it is difficult to properly manage the discharge of defective printing paper.
【００２１】従って、不良印刷紙のラインからの適正排
出には、印刷紙面の印刷濃度等を測定するＣＣＤ撮像機
からの印刷の情報により、印刷立上り判定合格または印
刷正常時の欠陥検出を行い、その時から排紙装置にいた
るまでの部数をパルスで検出するのが好ましい。Therefore, in order to properly discharge the defective print paper from the line, the print start judgment is passed or the defect is detected when the print is normal, based on the print information from the CCD imager for measuring the print density of the print paper surface. It is preferable to detect the number of copies from that time up to the paper discharge device with a pulse.
【００２２】すなわち、帯状に流れる印刷紙面の印刷進
行方向を検出するパルスジェネレーターを取付ける。こ
のパルスジェネレーターからのパルス信号により、各コ
ース毎に、印刷検査装置から折り機までの間に収容され
ている印刷紙面の部数が定められる。いいかえると、印
刷検査装置を通過した印刷紙面が折り機に到着するまで
のパルス数が定められる。従って、各印刷機を出た印刷
紙面が折り機まで流れるコースを決めたら、それによっ
て定まるパルス信号数を不良印刷紙排出装置の制御装置
に記憶させればよい。なお、排紙装置は折り機に取り付
けられている。That is, a pulse generator for detecting the print advancing direction on a printing paper surface which flows in a strip shape is attached. The pulse signal from the pulse generator determines the number of copies of the printing paper housed between the print inspection device and the folding machine for each course. In other words, the number of pulses required for the printing paper surface that has passed through the printing inspection device to reach the folding machine is determined. Therefore, once the course of the printing paper surface from each printing machine to the folding machine is determined, the number of pulse signals determined by the course may be stored in the controller of the defective printing paper ejection device. The paper discharge device is attached to the folding machine.
【００２３】折り機においては、印刷紙面が重なって流
れるので、印刷ラインとは異なった移動状態となる。従
って、重なって流れる新聞の一部ずつを計数できるパル
スジェネレーターが折り機に配置されている。しかし、
折り機に入ってから排紙装置にいたるまでの間の印刷紙
面の部数は常に一定であるので、この一定数をパルス信
号数に置換して採用してもよい。In the folding machine, since the printing paper surfaces flow in an overlapping manner, the moving state is different from the printing line. Therefore, a pulse generator is arranged in the folder so that it can count the newspapers that overlap each other. But,
Since the number of copies on the printing paper surface is always constant from entering the folding machine to reaching the paper discharge device, this fixed number may be replaced with the number of pulse signals.
【００２４】本発明の不良印刷紙排出装置においては、
各印刷機ごとの印刷立上り合格判定時から当該合格判定
紙が排紙装置に到達するまでパルスジェネレーターが発
信するパルス数をコース毎に予め学習させ、例えば、各
輪転機から出た印刷紙面が流れるコースが決まったら、
そのコースに収容させる印刷紙面の部数をパルス数に置
換して制御盤に記憶させ、立上りの最も遅い印刷機にお
いて合格判定時からの発信パルス数に前記記憶パルス数
が達したときに、排紙装置の排出を終了させる信号を制
御盤から発信する。In the defective printing paper discharging device of the present invention,
For each course, the number of pulses transmitted by the pulse generator is learned in advance for each course from the time when the print start pass judgment is made for each printing press until the pass judgment paper reaches the paper ejection device, for example, the printing paper surface that comes out of each rotary press flows. Once the course is decided,
The number of copies of the printing paper to be accommodated in the course is replaced with the number of pulses and stored in the control panel, and when the number of stored pulses reaches the number of transmission pulses from the acceptance judgment in the printer with the slowest rise, the paper is ejected. A signal is sent from the control panel to finish discharging the device.
【００２５】このようにして、本発明の不良印刷紙排出
装置の作動を印刷立上り時に制御し、排出すべき不良印
刷紙と共に排出されてしまう正常紙を最小量にする。In this way, the operation of the defective printing paper discharge device of the present invention is controlled at the start of printing to minimize the amount of normal paper discharged together with the defective printing paper to be discharged.
【００２６】印刷正常時における不良印刷紙を排出する
場合も同様な作用により、すなわち欠陥の検出時から当
該欠陥を有する紙面が排紙装置に到達するまでのパルス
数を予め学習させて、欠陥検出からの発信パルス数が当
該学習パルス数に達したときにパルス計測のばらつきを
勘案した所定数の印刷紙面を不良印刷紙として適確に排
出する。これにより、欠陥紙と共に排出されてしまう正
常紙の量を最小にする。When defective printing paper is discharged during normal printing, the same operation is performed, that is, the number of pulses from the detection of a defect to the arrival of the defective paper surface at the paper discharge device is learned in advance to detect the defect. When the number of transmitted pulses from the number reaches the learning pulse number, a predetermined number of printing paper surfaces in consideration of variations in pulse measurement are properly discharged as defective printing paper. This minimizes the amount of normal paper that is ejected with the defective paper.
【００２７】[0027]
【実施例】本発明を新聞印刷立上り時の不良印刷紙排出
装置に適用した実施例について、説明する。本実施例の
不良印刷紙排出装置は、以下に説明するように、ＣＣＤ
撮像機２０、排紙装置６及びパルスジェネレーター４６
を具備する。EXAMPLE An example in which the present invention is applied to a defective printing paper discharge device at the start of newspaper printing will be described. The defective printing paper ejecting apparatus of this embodiment has a CCD as described below.
Imaging device 20, paper discharge device 6, and pulse generator 46
It is equipped with.
【００２８】図１の輪転機１ａ、１ｂ、１ｃ、１ｄ、１
ｅの各印刷胴を出た直後にＣＣＤ撮像機２０を新聞紙面
の両面に向けて設置する。The rotary presses 1a, 1b, 1c, 1d, 1 of FIG.
Immediately after exiting each printing cylinder of e, the CCD image pickup device 20 is installed facing both sides of the newspaper.
【００２９】印刷新聞紙面とＣＣＤ撮像機の位置関係
は、図２〜図３に示す通りで、照明２４ａ、２４ｂの光
が印刷紙面４２で反射されてカメラ２６ａ、２６ｂに入
り、新聞紙面の印刷の良否が非接触で検出できる。な
お、紙面のうねりやしわはペーパーガイドロール４４で
解消されている。The positional relationship between the printed newspaper surface and the CCD image pickup device is as shown in FIGS. 2 and 3, and the lights of the illuminations 24a and 24b are reflected by the printed paper surface 42 and enter the cameras 26a and 26b to print the newspaper surface. The quality of can be detected without contact. The undulations and wrinkles on the paper surface are eliminated by the paper guide rolls 44.
【００３０】カメラ２６ａ、２６ｂで得た新聞紙面の光
情報を電気信号に変換し、その信号を受けて、制御盤４
０内にある印刷画線面積または濃度測定装置２２にて信
号を処理し、前記新聞紙面の印刷画線面積または濃度を
決定する。また、原画情報２９から得られる画線面積ま
たは濃度と前記新聞紙面の測定値とを判定装置２８で比
較判定し、印刷欠陥または初期立上りの判定結果を出力
装置３４から出力する。この出力は、表示装置３０やプ
リンタ３０ａで見ることができる。The optical information on the newspaper surface obtained by the cameras 26a and 26b is converted into an electric signal, and the electric signal is received, and the control panel 4 is received.
The signal is processed by the print image area or density measuring device 22 within 0 to determine the print image area or density of the newspaper. Further, the image area or density obtained from the original image information 29 and the measured value of the newspaper surface are compared and judged by the judgment device 28, and the judgment result of the printing defect or the initial rise is output from the output device 34. This output can be viewed on the display device 30 and the printer 30a.
【００３１】新聞印刷初期立上り判定では、測定値が原
画情報による値に対して所定の関係になったときに初期
立上り合格判定を出す。なお、画線面積や濃度の代わり
にパターンマッチングを利用することもできる。In the newspaper print initial rise determination, when the measured value has a predetermined relationship with the value based on the original image information, an initial rise pass determination is issued. Note that pattern matching can be used instead of the drawing area and the density.
【００３２】次に、新聞印刷初期立上り判定結果が合格
となった時の立上り信号に関し、すべての輪転機で初期
立上り合格判定の信号となった時、最後に合格判定とな
った輪転機の立上り信号から後述のように所定パルス数
になったときに排出停止信号数を排紙装置６へ送ると共
に記憶する。Next, regarding the start-up signal when the initial start-up judgment result of newspaper printing is passed, when the signal of the initial start-up pass judgment is obtained in all the rotary presses, the start-up of the rotary press finally determined to be pass As will be described later, when the number of pulses reaches a predetermined number from the signal, the number of discharge stop signals is sent to the paper discharge device 6 and stored.
【００３３】一方、印刷ラインの各コースにおいて、新
聞紙面が各輪転機のＣＣＤ撮像機を通過する位置から、
当該新聞紙面が折り機４に到達するまでにパルスジェネ
レーター４６が発信するパルス信号数を各コース毎に確
認し、排出信号のパルス数設定値を予め決定しておく。
なお、折り機４及び排紙装置６を移動する新聞紙面の部
数は変動することがないので、これをパルス数に置換し
て前記パルス数設定値に組み込んでおく。On the other hand, in each course of the printing line, from the position where the newspaper surface passes through the CCD imager of each rotary press,
The number of pulse signals transmitted by the pulse generator 46 is checked for each course before the newspaper surface reaches the folding machine 4, and the pulse number set value of the discharge signal is determined in advance.
Since the number of copies of the newspaper surface that moves the folding machine 4 and the paper discharge device 6 does not change, this is replaced with the number of pulses and incorporated in the pulse number set value.
【００３４】このパルス数設定値に従って、立上り信号
からの発信パルス信号数が前記パルス数設定値になった
ところで不良印刷紙の排出を終了し、新聞印刷の正常運
転とする。According to the pulse number setting value, when the number of transmission pulse signals from the rising signal reaches the pulse number setting value, the discharge of the defective printing paper is ended and the newspaper printing is normally operated.
【００３５】正常運転に入っても各ＣＣＤ撮像機による
測定を続け、原画情報から得られる画線面積または濃度
と実際の新聞紙面の測定値を比較判定する。これによ
り、各コラムから濃度不良、しみなどの印刷欠陥を検出
し、これを欠陥信号として排紙装置６へ送る。排紙装置
６は欠陥信号を受けてから前記パルス信号数設定値の前
後、例えば５パルスに相当する部数の新聞を排出する。Even after the normal operation is started, the measurement by each CCD image pickup device is continued, and the image area or density obtained from the original image information is compared with the actual measured value on the newspaper. As a result, a printing defect such as a density defect or a stain is detected from each column, and this is sent to the paper discharge device 6 as a defect signal. After receiving the defect signal, the paper discharge device 6 discharges newspapers before and after the pulse signal number set value, for example, the number of copies corresponding to 5 pulses.
【００３６】図４は、立上り判定及び欠陥検出による排
紙装置６の排出ゲートを制御するフローチャートを示
す。前者では、輪転機１ａ、１ｂ、１ｃ、１ｄに対し、
立上り判定回路で全ての輪転機の立上りを判定して、立
上り信号を排紙ゲート制御回路に出して排紙ゲートを閉
じる。後者では、通紙コース指定ＣＰＵより、各輪転機
１ａ、１ｂ、１ｃ、１ｄ毎に所定パルス数が排紙ジェネ
レータメモリにＮ1 、Ｎ2 、Ｎ3 、Ｎ4 として記憶さ
れ、例えばコース１ａで欠陥信号が発せられたら、排紙
信号を発して、排紙ゲート制御回路を介して所定パルス
数に達したときに排紙を行う。FIG. 4 shows a flow chart for controlling the discharge gate of the paper discharge device 6 by the rise determination and the defect detection. In the former case, for the rotary presses 1a, 1b, 1c, 1d,
The rise determination circuit determines the rise of all rotary presses, outputs a rise signal to the discharge gate control circuit, and closes the discharge gate. In the latter, from the paper feeding course designated CPU, the rotary press 1a, 1b, 1c, 1d predetermined number of pulses for each is stored as N 1, N 2, N 3 , N 4 to the discharge generator memory, for example in the course 1a When a defect signal is issued, a paper ejection signal is issued, and paper is ejected when a predetermined number of pulses is reached via the paper ejection gate control circuit.
【００３７】図５では、各輪転機１ａ、１ｂ、１ｃ、１
ｄから出る印刷紙面に対し、ＣＣＤ撮像機２０で欠陥を
検出する。ＣＣＤ撮像機２０の直後に印刷パルスジェネ
レーター４６があって、印刷紙面の流れに対しパルスを
発生する。各輪転機のコースで決まるＣＣＤ撮像機２０
から折り機までの所定パルス数Ｎ1 、Ｎ2 、Ｎ3 、Ｎ4
が予め定められている。さらに、折り機にも折り機パル
スジェネレーターがあり、折り機を通過する新聞の部数
を計測する。In FIG. 5, each rotary press 1a, 1b, 1c, 1
A defect is detected by the CCD image pickup device 20 on the printing paper surface output from d. Immediately after the CCD imager 20, there is a printing pulse generator 46, which generates pulses for the flow on the printing paper surface. CCD imager 20 determined by the course of each rotary press
Predetermined number of pulses N 1 , N 2 , N 3 , N 4 from the folding machine to the folder
Is predetermined. In addition, the folding machine also has a folding machine pulse generator to measure the number of newspapers that pass through the folding machine.
【００３８】例えば、輪転機１ａから出た印刷紙面の欠
陥がＣＣＤ撮像機２０で発見されたとき、その時点から
印刷パルスジェネレーターが所定パルス数Ｎ1 を計測
し、かつ折り機パルスジェネレーターが所定パルス数Ｎ
を計測したとき、排出装置６を作動する。このとき、計
測誤差を勘案して不良印刷紙を含む一定部数の印刷紙面
を排出させる。For example, when a defect on the printing paper surface from the rotary press 1a is detected by the CCD image pickup device 20, the printing pulse generator measures the predetermined number of pulses N 1 from that point, and the folding machine pulse generator outputs the predetermined pulse. Number N
When is measured, the discharging device 6 is operated. At this time, a certain number of copies of the printing paper surface including the defective printing paper is ejected in consideration of the measurement error.
【００３９】図６は、各輪転機１ａ、１ｂ、１ｃ、１ｄ
から出た印刷紙面が折り機で裁断されるまでのパルス数
に対する印刷濃度の変化を示すグラフである。なお、輪
転機１ａ、１ｂ、１ｃ、１ｄを出た印刷紙面の流れるコ
ースが輪転機１ａで最も長く、輪転機１ｄで最も短い。
従って、折り機で一緒に裁断されるために、各輪転機１
ａ、１ｂ、１ｃ、１ｄから折り機ＣＵＴ１、ＣＵＴ２、
ＣＵＴ３、ＣＵＴ４がコース距離に対応して異なってい
る。FIG. 6 shows each rotary press 1a, 1b, 1c, 1d.
6 is a graph showing a change in print density with respect to the number of pulses until the printing paper surface that has come out is cut by a folding machine. It should be noted that the course in which the printing paper surface exiting the rotary presses 1a, 1b, 1c, 1d is longest in the rotary press 1a and shortest in the rotary press 1d.
Therefore, in order to be cut together by the folding machine, each rotary press 1
a, 1b, 1c, 1d to folding machines CUT1, CUT2,
CUT3 and CUT4 are different according to the course distance.
【００４０】印刷開始直後に印刷濃度はいったん高くな
り、その後定常濃度になる。各輪転機１ａ、１ｂ、１
ｃ、１ｄが定常濃度に入るところで立上り検出が行われ
る。しかし、立上り検出は各輪転機によって異なり、図
示の場合、輪転機１ｄが最も早く、輪転機１ａが最も遅
い。新聞は輪転機１ａ、１ｂ、１ｃ、１ｄの印刷紙面が
組合わさって構成されるので、輪転機１ａの立上り検出
が出るまでは、全て不良印刷紙として排出される。従っ
て、輪転機１ａの立上り検出信号から、折り機での裁断
ＣＵＴ１までの間のパルス数Ｎ3 に到達したときに、排
紙装置が停止される。Immediately after the start of printing, the print density is once increased and then becomes a steady density. Each rotary press 1a, 1b, 1
The rise detection is performed when c and 1d enter the steady concentration. However, the rise detection differs depending on each rotary press, and in the case shown, the rotary press 1d is the earliest and the rotary press 1a is the slowest. Since the newspaper is formed by combining the printing paper surfaces of the rotary presses 1a, 1b, 1c, and 1d, all the paper is ejected as defective print paper until the rise of the rotary press 1a is detected. Therefore, when the number of pulses N 3 between the rise detection signal of the rotary press 1a and the cutting CUT1 at the folding machine is reached, the paper discharge device is stopped.
【００４１】図７は、図６に対応するグラフで、正常印
刷時において印刷紙面に欠陥を検出したときのパルス計
数を示す。輪転機１ａから出た印刷紙面に欠陥が検出さ
れた場合、これにより検出信号が発生したときに対応す
るパルスを含めて所定排紙部数に相当するパルス数だ
け、排紙装置６が起動させられる。起動の時期は、欠陥
の検出信号が出てからＣＵＴ１までのパルス数Ｎ1 が計
数されたときである。また、輪転機１ｂで欠陥が検出さ
れたときも同様である。FIG. 7 is a graph corresponding to FIG. 6, and shows the pulse count when a defect is detected on the printing paper surface during normal printing. When a defect is detected on the printing paper surface output from the rotary press 1a, the paper discharge device 6 is activated by the number of pulses corresponding to a predetermined number of paper discharge copies including the corresponding pulse when the detection signal is generated. . The timing of activation is when the number of pulses N 1 from the output of the defect detection signal to the CUT 1 is counted. The same applies when a defect is detected in the rotary press 1b.
【００４２】本実施例では、新聞印刷速度１５万部／時
で、合格判定時から不良印刷紙排出装置に到達するまで
１３０部であった。この条件で、欠陥信号が出されてか
らタイマーにより一定時間の排出を行った場合、不良印
刷紙と共に約５０部の正常紙が排出された。これに対
し、パルスジェネレーターのパルスにより、欠陥信号が
出てから学習による一定のパルス信号数内で排出する
と、不良印刷紙の他に約１０部のみの正常紙が排出され
た。In the present example, the newspaper printing speed was 150,000 copies / hour, and 130 copies were obtained from the acceptance judgment until the defective printing paper discharge device was reached. Under this condition, when the timer was used to discharge for a certain period of time after the defect signal was output, about 50 copies of normal paper were discharged together with the defective print paper. On the other hand, when a defect signal is output by the pulse of the pulse generator and the paper is ejected within a constant number of pulse signals by learning, only about 10 copies of normal paper are ejected in addition to the defective print paper.
【００４３】なお、本実施例では、印刷胴を出た直後に
ＣＣＤ撮像機のカメラを配置したが、ＣＣＤ撮像機で検
出した欠陥紙面が排紙装置に到着する前に、ＣＣＤ撮像
機からの信号が当該排出機に到達する限り、カメラは比
較的後方に設置してもよい。In this embodiment, the camera of the CCD image pickup device is arranged immediately after leaving the printing cylinder. However, before the defective paper surface detected by the CCD image pickup device arrives at the paper discharge device, the CCD image pickup device is operated. The camera may be installed relatively rearward as long as the signal reaches the ejector.
【００４４】さらに、上記実施例では反射光式のＣＣＤ
撮像機を使用したが、透過光式ＣＣＤ撮像機を使用して
もよい。Further, in the above embodiment, a reflected light type CCD is used.
Although an imager was used, a transmitted light CCD imager may be used.
【００４５】制御盤４０は、印刷欠陥または初期立上り
判定結果出力３４からの信号を受けると共に、パルスジ
ェネレーター４６からのパルス信号を受けるようになっ
ている。制御盤４０からの信号により排紙装置６の作動
は、初期立上り信号を受けたときから所定パルス信号数
で閉じ、また印刷欠陥信号を受けたときから、所定パル
ス信号数で開き且つ閉じるようにする。The control board 40 receives a signal from the print defect or initial rise determination result output 34 and also receives a pulse signal from the pulse generator 46. The operation of the paper discharge device 6 is closed by a predetermined number of pulse signals after receiving the initial rising signal and opened and closed by a predetermined number of pulse signals after receiving a print defect signal in response to a signal from the control panel 40. To do.
【００４６】[0046]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下記載されるような効果を奏する。Since the present invention is constructed as described above, it has the following effects.
【００４７】１）印刷の初期立上りの過度区間を適確に
検出し、その合格判定情報により排紙装置の排出終了を
自動的にできる。1) It is possible to accurately detect the excessive section of the initial rise of printing, and automatically finish the discharge of the paper discharge device based on the pass judgment information.
【００４８】２）排紙装置の起動・停止を適確に指示す
るため、正常な印刷の新聞紙が余分に排出されることが
ない。2) Since the start / stop of the paper discharge device is properly instructed, the normally printed newspaper is not discharged excessively.
【００４９】３）印刷初期立上り検査員のマンパワーを
減少できる。3) It is possible to reduce the manpower of the inspector for the initial stage of printing.
【００５０】４）印刷正常時に不良印刷紙を正確に排出
できるので、顧客に不良印刷紙が配達されるのを減少で
きる。4) Since the defective printing paper can be accurately discharged when the printing is normal, it is possible to reduce the delivery of the defective printing paper to the customer.
【図１】本発明の実施例に係る新聞印刷初期立上り検出
及び正常印刷時欠陥検出において複数の輪転機のパルス
ジェネレーター及び折り機パルスジェネレーターの配設
と各パルス信号を説明するフローチャートである。FIG. 1 is a flowchart for explaining the arrangement of pulse generators and folder pulse generators of a plurality of rotary presses and respective pulse signals in initial rising detection of newspaper printing and defect detection during normal printing according to an embodiment of the present invention.
【図２】 本発明の実施例に係る新聞印刷初期立上り検
出、及び正常印刷時欠陥検出を説明するフローチャート
である。FIG. 2 is a flowchart illustrating a newspaper print initial rise detection and a normal print defect detection according to an embodiment of the present invention.
【図３】 本発明の実施例に係るＣＣＤ撮像機と印刷新
聞紙面との位置関係を示す斜視図である。FIG. 3 is a perspective view showing a positional relationship between a CCD image pickup device and a printed newspaper surface according to an embodiment of the present invention.
【図４】 立上り判定及び欠陥検出による排紙装置を制
御するフローチャートである。FIG. 4 is a flowchart for controlling the paper discharge device based on rising determination and defect detection.
【図５】 ４台の輪転機から折り機まで流れて組合わさ
れる印刷紙面の状態と、それに対応するパルスジェネレ
ーターのパルス信号を示す説明図である。FIG. 5 is an explanatory diagram showing a state of a printing paper surface which is combined by flowing from four rotary presses to a folding machine, and a pulse signal of a pulse generator corresponding thereto.
【図６】 輪転機の印刷初期立上りを判定するために使
用されるＣＣＤ撮像の信号及び立上り検出による排紙装
置の制御を示すグラフである。FIG. 6 is a graph showing a CCD image pickup signal used to determine the initial start-up of printing on the rotary press and control of the paper discharge device based on detection of the start-up.
【図７】 定常運転中の輪転機において欠陥が検出され
たときの排紙装置の作動指令を示す図６同様のグラフで
ある。FIG. 7 is a graph similar to FIG. 6 showing an operation command of the paper discharge device when a defect is detected in the rotary press during steady operation.
１ａ、１ｂ、１ｃ、１ｄ、１ｅ 輪転機 ４ 折り機 ６ 排紙装置 ２０ ＣＣＤ撮像機 ２２ 原画情報（または濃度）測定装置 ２６ａ、２６ｂ カメラ ２８ 濃度判定装置 ２９ 原画情報 ３４ 初期立上りまたは正常印刷時欠陥検出判定（出
力）装置 ４０ 制御盤1a, 1b, 1c, 1d, 1e Rotary press 4 Folding machine 6 Paper ejection device 20 CCD imager 22 Original image information (or density) measuring device 26a, 26b Camera 28 Density determination device 29 Original image information 34 Initial start-up or normal printing defect Detection / judgment (output) device 40 Control panel
───────────────────────────────────────────────────── フロントページの続き (72)発明者 窪田 恵一 東京都世田谷区成城８−１−10 (72)発明者 花房 秀行 香川県高松市通町６−６ (72)発明者 菅又 三男 栃木県宇都宮市吉野２−４−14 (72)発明者 朝田 善巳 香川県坂出市福江町２−４−９ ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Keiichi Kubota 8-10 Seijo, Setagaya-ku, Tokyo (72) Inventor Hideyuki Hanafusa 6-6, Torimachi, Takamatsu-shi, Kagawa (72) Inventor Mitsuo Sugamata Utsunomiya, Tochigi Prefecture 2-4-14 Yoshino City (72) Inventor Yoshimi Asada 2-4-9 Fukue-cho, Sakaide City, Kagawa Prefecture
Claims (7)
査する印刷検査装置と、該印刷検査装置の検査結果に基
づき不良印刷紙を排出する排紙装置と、印刷機から排紙
装置への印刷紙の移動距離に対応するパルス信号を発信
するパルス信号発信装置とからなり、前記印刷検査装置
により検出した印刷初期立上り合格判定紙を立上り信号
として把握し、該立上り信号が出されてから排紙装置に
当該合格判定紙が到着するまでのパルス信号数を予め学
習し、前記パルス信号発信装置から発信されるパルス信
号数が前記立上り信号から前記学習パルス信号数に達し
た点で、排紙装置の排出を停止するようになっているこ
とを特徴とする印刷立上り不良印刷紙排出装置。1. A printing inspection device for inspecting a printing paper surface after exiting a printing cylinder of a printing machine, a paper ejection device for ejecting defective printing paper based on an inspection result of the printing inspection device, and a paper ejection device for the printing machine. A pulse signal transmitting device for transmitting a pulse signal corresponding to the movement distance of the printing paper to the printing initial rising pass acceptance judgment paper detected by the printing inspection device as a rising signal, and the rising signal is issued. From the point that the number of pulse signals until the acceptance judgment sheet arrives at the sheet discharge device is learned in advance, and the number of pulse signals transmitted from the pulse signal transmission device reaches the number of learned pulse signals from the rising signal, A printing paper ejection device with a defective start-up of printing, characterized in that the ejection of the paper ejection device is stopped.
記合格判定紙が到着するまでのパルス信号数が、予め設
定される請求項１に記載の不良印刷紙排出装置。2. The defective printing paper ejection device according to claim 1, wherein the number of pulse signals from when a rising signal is output until the acceptance judgment paper arrives at the paper ejection device is preset.
査する印刷検査装置と、該印刷検査装置の検査結果に基
づき不良印刷紙を排出する排紙装置と、印刷機から排紙
装置への印刷紙の移動距離に対応するパルス信号を発信
するパルス信号発信装置とからなり、前記印刷検査装置
により検出した不良印刷紙を印刷不良信号として把握
し、該印刷不良信号が出されてから排紙装置に当該不良
印刷紙が到着するまでのパルス信号数を予め学習し、前
記パルス信号発信装置から発信されるパルス信号数が前
記印刷不良信号にかかわる前記学習パルス信号数を含む
一定の範囲内にあるとき、印刷紙面を排紙装置から排出
させることを特徴とする不良印刷紙排出装置。3. A printing inspection apparatus for inspecting a printing paper surface after exiting a printing cylinder of a printing machine, a paper ejection apparatus for ejecting defective printing paper based on an inspection result of the printing inspection apparatus, and a paper ejection apparatus for the printing machine. A pulse signal transmitting device for transmitting a pulse signal corresponding to the moving distance of the printing paper to the printing inspection device, the defective printing paper detected by the printing inspection device is recognized as a printing failure signal, and after the printing failure signal is issued. A predetermined range in which the number of pulse signals until the defective printing paper arrives at the paper discharge device is learned in advance, and the number of pulse signals transmitted from the pulse signal transmission device includes the learning pulse signal number related to the defective printing signal. A defective printing paper ejecting device, which ejects the printing paper surface from the paper ejecting device when inside.
記合格判定紙が到着するまでのパルス信号数が、予め設
定される請求項３に記載の不良印刷紙排出装置。4. The defective printing paper ejection device according to claim 3, wherein the number of pulse signals from when the rising signal is output until the acceptance judgment paper arrives at the paper ejection device is preset.
印刷不良信号にかかわる前記学習パルス信号数を含む一
定範囲の最先端から、最後の印刷不良信号にかかわる前
記学習パルス信号数を含む一定範囲の最終端までの間、
印刷紙面を排紙装置から排出させる請求項３に記載の不
良印刷紙排出装置。5. When defective printing paper continues, the learning pulse signal number related to the last defective printing signal is set from the leading end of a certain range including the learning pulse signal number related to the earliest defective printing signal. Between the end of a certain range including
The defective printing paper ejection device according to claim 3, wherein the printing paper surface is ejected from the paper ejection device.
り込まれる場合、各印刷機の後の印刷検査装置より立上
り信号が出されてから当該印刷紙面が排紙装置に到着す
るパルス信号数を各印刷機ごとに学習し、すべての印刷
機についてパルス信号発信装置から発信されるパルス信
号数が前記立上り信号から学習パルス信号数に達したと
きに、排紙装置の排出作動終了を行うことを特徴とする
請求項１に記載の印刷立上り不良印刷紙排出装置。6. The number of pulse signals when a printing paper surface from a plurality of printing presses is folded in multiples and a rising signal is output from a print inspection device after each printing press and the printing paper surface arrives at a paper ejection device. For each printing press, and when the number of pulse signals transmitted from the pulse signal transmission device for all printing presses reaches the learning pulse signal number from the rising signal, terminate the discharge operation of the paper discharge device. The defective printing start-up defective printed paper discharging device according to claim 1.
記合格判定紙が到着するまでのパルス信号数が、予め設
定されている請求項６に記載の不良印刷紙排出装置。7. The defective print paper discharge device according to claim 6, wherein the number of pulse signals from when the rising signal is output until the acceptance judgment paper arrives at the paper discharge device is preset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5109843A JPH06297693A (en) | 1993-04-14 | 1993-04-14 | Inferior printing paper discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5109843A JPH06297693A (en) | 1993-04-14 | 1993-04-14 | Inferior printing paper discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06297693A true JPH06297693A (en) | 1994-10-25 |
Family
ID=14520611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5109843A Pending JPH06297693A (en) | 1993-04-14 | 1993-04-14 | Inferior printing paper discharge device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06297693A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010149512A (en) * | 2008-12-17 | 2010-07-08 | Ech Will Gmbh | Apparatus and method for manufacturing book block |
| CN112122158A (en) * | 2020-07-28 | 2020-12-25 | 深圳创视智能视觉技术股份有限公司 | Automatic waste discharge method |
| CN112122147A (en) * | 2020-07-28 | 2020-12-25 | 深圳创视智能视觉技术股份有限公司 | Non-stop waste discharge method |
-
1993
- 1993-04-14 JP JP5109843A patent/JPH06297693A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010149512A (en) * | 2008-12-17 | 2010-07-08 | Ech Will Gmbh | Apparatus and method for manufacturing book block |
| CN112122158A (en) * | 2020-07-28 | 2020-12-25 | 深圳创视智能视觉技术股份有限公司 | Automatic waste discharge method |
| CN112122147A (en) * | 2020-07-28 | 2020-12-25 | 深圳创视智能视觉技术股份有限公司 | Non-stop waste discharge method |
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