JPH0321347B2 - - Google Patents
Info
- Publication number
- JPH0321347B2 JPH0321347B2 JP4805583A JP4805583A JPH0321347B2 JP H0321347 B2 JPH0321347 B2 JP H0321347B2 JP 4805583 A JP4805583 A JP 4805583A JP 4805583 A JP4805583 A JP 4805583A JP H0321347 B2 JPH0321347 B2 JP H0321347B2
- Authority
- JP
- Japan
- Prior art keywords
- dampening
- printing
- dampening liquid
- printing plate
- plate
- 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.)
- Expired
Links
- 239000007788 liquid Substances 0.000 claims description 58
- 238000007639 printing Methods 0.000 claims description 51
- 239000012530 fluid Substances 0.000 claims description 44
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 5
- 238000007645 offset printing Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/20—Details
- B41F7/24—Damping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0054—Devices for controlling dampening
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
Description
【発明の詳細な説明】
本発明は、オフセツト輪転印刷機の版胴の版板
を湿すための方法及びこの方法を実施するための
装置であつて、湿し液を、区域毎に供給されたイ
ンキ量に対して規定された割合で版板に供給する
形式のものに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is a method for dampening a plate of a plate cylinder of an offset rotary printing press and an apparatus for carrying out this method, in which a dampening liquid is supplied zone by zone. It relates to a type of ink that is supplied to the printing plate at a specified ratio to the amount of ink that has been applied.
良質のオフセツト印刷を得るためには、インキ
量と湿し液量とを所定の割合に保つ必要がある。
例えば湿し液の量がインキ量に対して少なすぎる
と、版板の印刷しない部分にもインキが集められ
て印刷の汚れが生じる。また湿し液の量が多すぎ
るといわゆるウオーターマーク（water mark）
が生じる。いずれの場合も印刷不良が形成され
る。このために印刷業者はそのつどの印刷に適し
たインキと湿し液との配合比を見つけ出すことに
努力しなければならない。 In order to obtain good quality offset printing, it is necessary to maintain a predetermined ratio between the amount of ink and the amount of dampening fluid.
For example, if the amount of dampening fluid is too small relative to the amount of ink, ink will also collect on non-printing areas of the printing plate, resulting in smudged printing. Also, if there is too much dampening fluid, so-called water marks may occur.
occurs. In either case, printing defects are formed. For this reason, printers must make efforts to find a blending ratio of ink and dampening liquid suitable for each printing.
湿し液の必要供給量は、使用されるインキ量に
のみ基づくのではなく、インキ自体（乳化特性）、
ゴムブランケツト及び印刷材料にも基づいてい
る。しかも湿し液の大部分が温度及び湿度の影響
を受けて蒸発するので部屋の環境が大きな役割を
果している。湿し液の供給量を調量するための特
別な手段を有していない湿し機構においては、作
業員は常に湿し液の最大必要量を供給しなければ
ならない。このために、少量の湿し液しか必要と
しない範囲には湿し液が過剰に供給されて不必要
に過度なインキの乳化が形成されるという欠点が
ある。 The required supply of dampening fluid is not based solely on the amount of ink used, but also on the ink itself (emulsifying properties),
It is also based on rubber blankets and printing materials. Moreover, most of the dampening liquid evaporates under the influence of temperature and humidity, so the environment of the room plays a major role. In dampening mechanisms that do not have special means for metering the amount of dampening fluid supplied, the operator must always supply the maximum required amount of dampening fluid. This has the disadvantage that in areas where only a small amount of dampening fluid is required, an excessive amount of dampening fluid is supplied and an unnecessarily excessive ink emulsion is formed.
このような欠点を避けるためには、少量の湿し
液しか必要としない範囲のために特別なスクイー
ジローラ又は吹込み装置が設けられている。ま
た、湿し装置の全幅にわたつて互いに間隔を保つ
て配置された、別個の調節可能なスプレーノズル
が設けられている。このような、ドイツ連邦共和
国特許第846546号明細書により公知な装置は、区
域毎に異なる量の湿し液を供給することが可能で
ある。しかしながらこの公知例においては、作業
員が調節結果を直接確かめることができないの
で、湿し液の量を所定の値に調節することは不可
能であつて、この湿し液の量を所定の値に調量す
ることは、作業員が湿し液供給量の許容限界を把
握しているときにのみ可能である。 To avoid such drawbacks, special squeegee rollers or blowing devices are provided for areas where only a small amount of dampening fluid is required. There are also separate adjustable spray nozzles spaced apart from one another across the width of the dampening device. Such a device, as known from DE 846 546, makes it possible to supply different amounts of dampening fluid to different areas. However, in this known example, since the operator cannot directly check the adjustment result, it is impossible to adjust the amount of dampening liquid to a predetermined value. This is only possible if the operator knows the permissible limits of the dampening fluid supply.
湿し液の必要量を維持するための別の装置は、
ドイツ連邦共和国特許出願公告第2022114号明細
書に開示されている。この装置においては、版板
に与えられた湿し液膜の厚さが版板に接触するこ
となしに測定され、測定された湿し液膜の厚さに
応じて、より多くの又はより少ない湿し液を版板
に供給するためにバルブが操作されるようになつ
ている。しかしながらこの公知の装置において
は、版板における印像のない箇所において、湿し
液膜の厚さが測定されるので、この印像のない箇
所においてしか最適な湿し液供給は行なわれな
い。このような理由で、この公知例においても版
胴の最適量の湿し液を供給することは不可能であ
る。 Another device for maintaining the required amount of dampening fluid is
It is disclosed in German Patent Application No. 2022114. In this device, the thickness of the dampening liquid film applied to the printing plate is measured without contacting the printing plate, and depending on the thickness of the dampening liquid applied to the printing plate, more or less A valve is adapted to be operated to supply dampening fluid to the printing plate. However, in this known device, the thickness of the dampening liquid film is measured in areas of the printing plate where there are no impressions, so that an optimum supply of dampening liquid takes place only at these areas where there are no impressions. For this reason, it is also not possible to supply the printing form cylinder with an optimal amount of dampening liquid in this known example.
ドイツ連邦共和国特許出願公告第2931579号明
細書によれば、同一の区域範囲において、インキ
必要量に応じて湿し液量を調節する装置が提案さ
れている。しかしながこのような区域毎の調節形
式は、インキの湿し液受容能力、版板の損耗度
（摩耗度）及び蒸発等に関連した修正をそのつど
印刷作業のために行なうことができないという欠
点がある。しかも、練り運動による摩滅作用のた
めに湿し区域がより幅広く与えられるので、湿し
区域とインキ区域とを合致させることは必らずし
も必要なことではない。 According to German Patent Application No. 2931579, a device is proposed for adjusting the amount of dampening liquid in one and the same area depending on the amount of ink required. However, this zone-by-area adjustment method does not allow corrections to be made for each printing operation in relation to the ink's dampening fluid receptivity, plate wear and evaporation, etc. There are drawbacks. Moreover, it is not absolutely necessary to match the dampening area and the inking area, since the dampening area is provided wider due to the abrasive action of the kneading motion.
本発明の課題は、版胴の版板に湿し液膜に応じ
て区域毎に必要な正確な量の湿し液を繰り返えし
供給することができるようにすることである。 The object of the present invention is to make it possible to repeatedly supply the printing plate of a printing form cylinder with the exact amount of dampening liquid required for each zone, depending on the dampening liquid film.
前記課題を解決した本発明の方法の手段によれ
ば、版胴の版板に供給されている湿し液の量を適
当な位置で湿し液膜厚測定装置によつて区域毎に
測定し、次いで区域毎の測定値をコンピユータへ
伝達し、このコンピユータが伝達された測定値を
所定の目標値と比較し、次いで処理された測定値
に応じた調整指示信号を湿し液調量装置に与える
ようになつている。 According to the means of the method of the present invention which solves the above-mentioned problems, the amount of dampening liquid being supplied to the printing plate of the printing cylinder is measured in each area using a dampening liquid film thickness measuring device at an appropriate position. , then transmits the measured values for each zone to a computer, which compares the transmitted measured values with a predetermined target value and then sends an adjustment instruction signal to the dampening fluid dosing device in accordance with the processed measured values. I am learning to give.
また、前記課題を解決した本発明の装置の手段
によれば、インキ供給箇所の手前と湿し液供給箇
所の後ろとの間で版板に向けられた湿し液膜厚測
定装置が設けられており、該湿し液膜厚測定装置
によつて前記版板の複数区域における測定信号が
得られ、該測定信号がコンピユータによつて所定
の目標値と比較され、この比較結果に応じて、前
記版板の複数区域に湿し液を供給する前記湿し機
構の湿し液調量装置が制御される。 Furthermore, according to the means of the apparatus of the present invention which solves the above-mentioned problems, a dampening liquid film thickness measuring device directed toward the printing plate is provided between the front of the ink supply point and the rear of the dampening liquid supply point. the dampening liquid film thickness measuring device obtains measurement signals in a plurality of areas of the printing plate, the measurement signals are compared with a predetermined target value by a computer, and depending on the comparison result, A dampening fluid metering device of the dampening mechanism is controlled which supplies dampening fluid to a plurality of zones of the printing plate.
実際に供給される湿し液量は、外的条件、例え
ば室温の変化、版板の摩耗等の影響を受けて変化
するが、この湿し液量の変化は湿し液膜厚測定装
置を介してコンピユータにフイードバツクされ、
所定の目標値と比較される。この所定の目標値と
は、得ようとする適正な印刷結果に基づいた最小
必要量の湿し液を設定したもので、常に一定であ
つて、版板の各区域毎にあらかじめコンピユータ
にインプツトされている。コンピユータは、この
所定の目標値と、フイードバツクされた実際の湿
し液量とを比較し、その比較結果に基づいて湿し
液調量装置を介して湿し液量を調整し、前記所定
の目標値に合つた湿し液量が常に得られるように
する。従つて外的条件がどのように変化しても常
に所定の目標値に合つた適正な湿し液量が供給さ
れる。 The amount of dampening fluid actually supplied varies depending on external conditions, such as changes in room temperature and abrasion of the printing plate. Feedback is sent to the computer via
It is compared with a predetermined target value. This predetermined target value sets the minimum required amount of dampening fluid based on the desired printing result, is always constant, and is input into the computer in advance for each area of the printing plate. ing. The computer compares this predetermined target value with the actual amount of dampening fluid that has been fed back, and adjusts the dampening fluid amount via the dampening fluid metering device based on the comparison result. Ensure that the amount of dampening fluid that meets the target value is always obtained. Therefore, no matter how external conditions change, an appropriate amount of dampening fluid is always supplied that meets the predetermined target value.
本発明によつて構成された装置は、従来の装置
に較べて、全印刷機の特に経済性に関して著しい
利点を有している。 The device constructed according to the invention has significant advantages over conventional devices, especially with regard to the economy of the overall printing press.
版板に区域毎に供給される湿し液の量を規定し
かつ相応に調量することによつて印刷の仕上りが
著しく改良された。この改良は、湿し液供給量
を、汚れ及びウオーターマーク（water mark）
が生じない所定の許容限界内にのみ維持するべき
であるという従来までの考え方が誤つていること
を明白に証明した。つまり実際は、湿し液の必要
量は外的条件、例えば室温の変化及びその他の環
境の影響によつてのみ変化するのではなく、例え
ば機械停止後に、版板へのインキ及び湿し液供給
が続けられるか又は中断されるかに応じてインキ
若しくは湿し液の過剰又は不足が生じる。インキ
と湿し液とのバランスは、多量の印刷が行なわれ
てからはじめて得られるが、多量のインキ供給範
囲では、少量のインキ供給範囲におけるよりもよ
り早くインキと湿し液とのバランスが得られる。
これによつて、機械停止後、湿し液供給の区域毎
に若しくは種種異なる調節によつてのみ正しい結
果が得られる。この問題点は従来知られておら
ず、またこれと同様に、区域毎に異なる量のイン
キ供給のために、何よりもインキ供給量の少ない
区域に湿し液を精確に調量して供給する必要があ
るということも従来知られていなかつた。特に湿
し液を少量しか必要としない範囲では、印刷の品
質低下を招くと共に例えばインキの乳化及び「停
滞」の原因となる湿し液の過剰が生じる。またこ
の印刷の品質低下によつて印刷プロセスはたびた
び中断されることになる。 By defining the amount of dampening fluid applied to the printing plate in each area and metering it accordingly, the print quality has been significantly improved. This improvement reduces the amount of dampening solution supplied, preventing stains and water marks.
This clearly proves that the conventional idea that the condition should be maintained only within certain tolerance limits within which no This means that in reality the required amount of dampening fluid does not only change due to external conditions, e.g. changes in room temperature and other environmental influences, but also changes in the supply of ink and dampening fluid to the printing plate, e.g. after a machine stoppage. Depending on whether it is continued or interrupted, there will be an excess or deficiency of ink or dampening fluid. Balance between ink and dampening fluid is achieved only after a large volume of printing has been done, but in a high volume ink supply range the ink and dampening fluid balance is achieved more quickly than in a low ink supply range. It will be done.
This makes it possible to obtain correct results only by zone-specific or different adjustment of the dampening liquid supply after the machine has been stopped. This problem has not been previously known and, similarly, because of the different amounts of ink supplied to each area, the dampening fluid is precisely metered and supplied, above all, to areas with a low ink supply. It was not previously known that this was necessary. Particularly in areas where only a small amount of dampening fluid is required, an excess of dampening fluid results, which leads to a reduction in print quality and causes, for example, emulsification and "stagnation" of the ink. Moreover, the printing process is frequently interrupted due to this deterioration in print quality.
湿し液量を検出するために、赤外線又はマイク
ロ波吸収に基づく公知の測定形式が提案されてお
り、湿し液供給量の簡単な検出及び調節は、例え
ば回転する湿しローラに対して押しつけられる自
由に支承されたローラを配置することによつて可
能である。このローラは湿し液膜が相応に薄い場
合は回転する湿しローラによつて連行される。こ
のローラは回転速度が増して所定の速度になると
湿しローラから離れて湿し液膜上を走行する。伝
達される力が突然減少すると、ややブレーキのか
けられたローラはただちにゆるやかに回転するか
又は停止する。この速度の急激な変化はスリツプ
測定装置によつて測定される。有効な力の伝達状
態からスリツプ状態への移行は、湿し液膜の厚
さ、押圧力、ローラ及び湿し液ローラの表面形
状、速度に関連している。最後の３つのパラメー
タ、つまり押圧力、ローラ及び湿し液ローラの表
面形状、速度が明らかであれば、湿し液膜の厚さ
は計算されるか又は基準表により読み取ることが
できる。 In order to detect the dampening liquid quantity, known measuring forms based on infrared or microwave absorption have been proposed; simple detection and regulation of the dampening liquid supply is possible, for example, by pressing the dampening liquid against a rotating dampening roller. This is possible by arranging freely supported rollers. If the dampening liquid film is correspondingly thin, this roller is entrained by a rotating dampening roller. When the rotational speed of this roller increases to a predetermined speed, it separates from the dampening roller and runs on the dampening liquid film. If the transmitted force suddenly decreases, the slightly braked roller will immediately slowly rotate or stop. This rapid change in velocity is measured by a slip measuring device. The transition from the effective force transmission state to the slip state is related to the thickness of the dampening fluid film, the pressing force, the surface profile of the roller and the dampening fluid roller, and the speed. If the last three parameters are known, namely the pressing force, the surface profile of the roller and the dampening fluid roller, and the speed, the thickness of the dampening fluid film can be calculated or read from a reference table.
湿し液調量システムとしては、まず一様な湿し
液膜を供給し、次いでこの一様な湿し液膜を湿し
液量を減少させる部材、例えばブローエア、スク
イージローラ等によつて修正するシステムが使用
されるが、区域毎に組み立てられた各調量システ
ムより成るシステム、例えば互いに無関係に独立
して支承されたリングより成る湿し液伝達ローラ
を使用すると有利である。 The dampening liquid metering system first supplies a uniform dampening liquid film and then corrects this uniform dampening liquid film by means of a component that reduces the dampening liquid volume, such as blow air, a squeegee roller, etc. However, it is advantageous to use a system consisting of metering systems assembled in sections, for example a dampening fluid transfer roller consisting of rings mounted independently and independently of one another.
次に図面に示した実施例について本発明の構成
を具体的に説明する。 Next, the configuration of the present invention will be specifically explained with reference to the embodiments shown in the drawings.
図面に示した装置は本発明による版板を湿すた
めの装置の１実施例であつて、この装置は使用さ
れた湿し機構に応じて変えることができる。例え
ば、湿し液調量装置が湿し液を細かく分割して版
板に直接与えるようにすることも可能である。 The device shown in the drawing is one embodiment of a device for dampening printing plates according to the invention, which device can be varied depending on the dampening mechanism used. For example, it is also possible for the dampening liquid metering device to divide the dampening liquid into smaller portions and apply them directly to the printing plate.
部分的に示した印刷機構２１は、版板２を備え
た版胴１と、インキ付けローラ４，５，６，７を
備えたインキ機構３と、湿しローラ９，１０を備
えた湿し機構８とを有している。さらに湿し機構
８の全幅にわたつて多数の湿し液調量装置１１が
設けられていて湿し液が湿し機構８の湿し液壷ロ
ーラ１２に区域的に与えられている。湿し液壷ロ
ーラ１２はモータ１３を介して別個に駆動可能で
ある。 The partially illustrated printing mechanism 21 includes a printing cylinder 1 with a printing plate 2, an inking mechanism 3 with inking rollers 4, 5, 6, 7 and a dampening mechanism with dampening rollers 9, 10. It has a mechanism 8. Furthermore, a large number of dampening liquid metering devices 11 are provided over the entire width of the dampening mechanism 8, so that dampening liquid can be applied to the dampening liquid fountain roller 12 of the dampening mechanism 8 in sections. The dampening fluid fountain roller 12 can be driven separately via a motor 13.
版胴１の回転方向で見て最後の湿しローラ１０
と最初のインキ付けローラ４との間で湿し液膜厚
測定装置１４がトラバース１５に配置されてい
る。この配置形式はこの湿し液膜厚測定装置１４
を、湿し液調量装置１１によつてそれぞれ別個に
区域毎に与えられた湿し液膜の厚さを検出するた
めにトラバース１５でトラバースさせることがで
きるように構成されている。 The last dampening roller 10 in the direction of rotation of the plate cylinder 1
A dampening liquid film thickness measuring device 14 is arranged in a traverse 15 between the first inking roller 4 and the first inking roller 4 . This arrangement type corresponds to the dampening liquid film thickness measuring device 14.
can be traversed by a traverse 15 in order to detect the thickness of the dampening liquid film applied in each area separately by the dampening liquid metering device 11.
湿し液膜厚測定装置１４、湿し液調量装置１１
及びモータ１３にはコンピユータ１６が配属され
ており、このコンピユータ１６は湿し液膜厚測定
装置１４の測定結果を処理して湿し液膜を一定の
厚さに調節する。 Dampening liquid film thickness measuring device 14, dampening liquid metering device 11
A computer 16 is assigned to the motor 13, and the computer 16 processes the measurement results of the dampening liquid film thickness measuring device 14 to adjust the dampening liquid film to a constant thickness.
コンピユータ１６に設けられたキーボード１７
を介して各湿し区域のために目標値が与えられ
る。コンピユータ１６のプログラミングに応じて
種種異なる運転が行なわれる。湿し区域をインキ
区域に合致させる必要がないことが明らかになつ
た場合は、多数のインキ区域に１つの湿し区域が
配属される。 Keyboard 17 provided on computer 16
A target value is given for each dampening zone via. Depending on the programming of computer 16, different operations are performed. If it becomes clear that it is not necessary to match the dampening zones to the inking zones, one dampening zone is assigned to a number of inking zones.
例えば１湿し区域における湿し液の区域的な必
要量が増大すると、これは湿し液調量装置１１に
よつて湿し液供給量を増やすことによつて補償さ
れる。しかしながら全湿し液必要量が増大する
と、モータ１３によつて駆動される湿し液壷ロー
ラ１２をより迅速に回転させることによつて湿し
液供給量の増加が得られる。 For example, if the regional requirement for dampening liquid in one dampening area increases, this is compensated for by increasing the dampening liquid supply by means of the dampening liquid metering device 11. However, as the total dampening fluid requirement increases, an increase in the dampening fluid supply can be obtained by rotating the dampening fluid fountain roller 12 more quickly, which is driven by the motor 13.
図面は本発明による、版板を湿すための装置を
備えた印刷機構の部分的な概略図である。
１……版胴、２……版板、３……インキ機構、
４，５，６，７……インキ付けローラ、８……湿
し機構、９，１０……湿しローラ、１１……湿し
液調量装置、１２……湿し液壷ローラ、１３……
モータ、１４……湿し液膜厚測定装置、１５……
トラバース、１６……コンピユータ、１７……キ
ーボード、２１……印刷機構。
The drawing is a partial schematic representation of a printing mechanism with a device for dampening a printing plate according to the invention. 1... Plate cylinder, 2... Print plate, 3... Ink mechanism,
4, 5, 6, 7... inking roller, 8... dampening mechanism, 9, 10... dampening roller, 11... dampening liquid metering device, 12... dampening liquid pot roller, 13... …
Motor, 14... Dampening fluid film thickness measuring device, 15...
Traverse, 16...computer, 17...keyboard, 21...printing mechanism.
Claims (1)
めの方法であつて、湿し液を、区域毎に供給され
たインキ量に対して規定された割合で版板に供給
する形式のものにおいて、版胴の版板に供給され
ている湿し液の量を適当な位置で湿し液膜厚測定
装置によつて区域毎に測定し、次いで区域毎の測
定値をコンピユータへ伝達し、このコンピユータ
が伝達された測定値を所定の目標値と比較し、次
いで処理された測定値に応じた調整指示信号を湿
し液調量装置に与えることを特徴とする、版板を
湿すための方法。 ２ 湿し液を、区域毎に供給されたインキ量に対
して規定された割合で版板に供給する形式の、オ
フセツト輪転印刷機の版胴の版板を湿すための方
法を実施するための装置であつて、前記版板に湿
し液を供給するための湿し機構を備えている形式
のものにおいて、インキ供給箇所の手前と湿し液
供給箇所の後ろとの間で版板２に向けられた湿し
液膜厚測定装置１４が設けられており、該湿し液
膜厚測定装置１４によつて前記版板２の複数区域
における測定信号が得られ、該測定信号がコンピ
ユータ１６によつて所定の目標値と比較され、こ
の比較結果に応じて、前記版板２の複数区域に湿
し液を供給する前記湿し機構８の湿し液調量装置
１１が制御されることを特徴とする、版板を湿す
ための装置。 ３ 前記湿し液膜厚測定装置１４が版板２の表面
を横切つてトラバースするように配置されてい
る、特許請求の範囲第２項記載の装置。 ４ 前記コンピユータ１６がキーボード１７を備
えており、該キーボード１７を介して目標値がイ
ンプツトされるようになつている、特許請求の範
囲第２項記載の装置。 ５ 複数のインキ区域が１つの湿し区域に配属さ
れている、特許請求の範囲第２項記載の装置。 ６ インキ区域と湿し区域との比が湿し区域の整
数倍に相当する、特許請求の範囲第５項記載の装
置。 ７ 湿し液膜厚測定装置１４が各湿し区域に配属
されている、特許請求の範囲第６項記載の装置。[Claims] 1. A method for dampening a printing plate of a plate cylinder of an offset rotary printing press, the method comprising: applying a dampening liquid to the printing plate in a defined proportion to the amount of ink supplied for each zone; In the case of the dampening liquid supplied to the printing plate of the plate cylinder, the amount of dampening liquid supplied to the printing plate of the printing cylinder is measured for each area using a dampening liquid film thickness measuring device at an appropriate position, and then the measured value for each area is measured. is transmitted to a computer, the computer compares the transmitted measured value with a predetermined target value, and then provides an adjustment instruction signal to the dampening liquid metering device in accordance with the processed measured value, Method for moistening printing plates. 2. For carrying out a method for dampening the plate of a plate cylinder of a rotary offset printing press, in which a dampening fluid is supplied to the plate in a defined proportion to the amount of ink supplied per zone; In this apparatus, which is equipped with a dampening mechanism for supplying dampening liquid to the printing plate, the printing plate 2 is connected between the front of the ink supply point and the back of the dampening liquid supply point A dampening liquid film thickness measuring device 14 is provided, which is directed to a dampening liquid film thickness measuring device 14, by means of which measurement signals are obtained in a plurality of regions of the printing plate 2, which measurement signals are transmitted to a computer 16. The dampening liquid metering device 11 of the dampening mechanism 8 for supplying dampening liquid to a plurality of areas of the printing plate 2 is controlled according to the comparison result. A device for moistening printing plates, characterized by: 3. The device according to claim 2, wherein the dampening liquid film thickness measuring device 14 is arranged to traverse across the surface of the printing plate 2. 4. Device according to claim 2, characterized in that the computer (16) is equipped with a keyboard (17) via which the target value can be input. 5. Device according to claim 2, in which a plurality of inking zones are assigned to one dampening zone. 6. Apparatus according to claim 5, wherein the ratio of inking area to dampening area corresponds to an integral multiple of the dampening area. 7. Device according to claim 6, characterized in that a dampening liquid film thickness measuring device 14 is assigned to each dampening zone.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE32111576 | 1982-03-26 | ||
| DE19823211157 DE3211157A1 (en) | 1982-03-26 | 1982-03-26 | METHOD AND DEVICE FOR MOISTURIZING PRINTING PLATES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58217355A JPS58217355A (en) | 1983-12-17 |
| JPH0321347B2 true JPH0321347B2 (en) | 1991-03-22 |
Family
ID=6159373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4805583A Granted JPS58217355A (en) | 1982-03-26 | 1983-03-24 | Method and device for dampening plate |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0090181A1 (en) |
| JP (1) | JPS58217355A (en) |
| DE (1) | DE3211157A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3444892C2 (en) * | 1984-12-08 | 1986-11-13 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Fountain solution metering device for the dampening unit of a printing press |
| DD253679A1 (en) * | 1986-11-13 | 1988-01-27 | Polygraph Leipzig | PROCESS FOR REGULATING COLOR DENSITY |
| DE3606270C1 (en) * | 1986-02-27 | 1987-03-12 | Roland Man Druckmasch | Device for the zone-wise metering of damping medium or ink in the damping or inking unit of a rotary printing machine |
| DE3717904A1 (en) * | 1987-05-27 | 1988-12-08 | Heidelberger Druckmasch Ag | METHOD FOR CONTROLLING THE PRINTING PROCESS ON OFFSET PRINTING MACHINES |
| IT1211266B (en) * | 1987-08-17 | 1989-10-12 | Grapho Eng Srl | AUTOMATIC ADJUSTMENT CONTINUOUS WATERING SYSTEM FOR OFFSET PRINTING MACHINES |
| DE3907584A1 (en) * | 1989-03-09 | 1990-09-13 | Heidelberger Druckmasch Ag | METHOD FOR HUMIDITY CONTROL IN AN OFFSET PRINTING MACHINE |
| DE3912811A1 (en) * | 1989-04-19 | 1990-10-25 | Heidelberger Druckmasch Ag | METHOD AND DEVICE FOR THE MOISTANT CONTROLLING OF AN OFFSET PRINTING MACHINE |
| DE3940141A1 (en) * | 1989-12-05 | 1991-06-06 | Rosemount Gmbh & Co | METHOD FOR THE DIRECT, MEASURING TECHNICAL REPRESENTATION OF A DIFFERENTIAL MEASUREMENT IN ITS CORRECT PHYSICAL UNIT |
| JPH03227240A (en) * | 1990-02-02 | 1991-10-08 | Mitsubishi Heavy Ind Ltd | Controller for quantity of dampening water |
| US5843943A (en) * | 1994-12-29 | 1998-12-01 | The Regents Of The University Of California | Compounds for inhibition of ceramide-mediated signal transduction |
| SE0001808D0 (en) * | 2000-05-17 | 2000-05-17 | Baldwin Jimek Ab | A method for controlling fountain solution in a printing press |
| DE102007028968A1 (en) * | 2007-06-23 | 2008-12-24 | Manroland Ag | Printing machine i.e. rotary printing machine, control station, has control elements serving either for influence of color zone adjustment elements or damping medium dosing devices, depending on actuation of switch device |
| DE102007042458A1 (en) * | 2007-09-06 | 2009-03-12 | Manroland Ag | Printing unit i.e. offset printing unit, for e.g. newspaper printing machine, has inking unit including inking zone adjusting elements with number and width that correspond to number and width of covers of dampening unit |
| DE102008009300A1 (en) * | 2008-02-15 | 2009-08-20 | Manroland Ag | Method for operating a printing machine |
| EP2578410B1 (en) * | 2010-05-28 | 2019-01-16 | Andrew Tak Kin Yan | Active prospective intelligent monitoring method for liquid film and device thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3312166A (en) * | 1966-06-23 | 1967-04-04 | Gentile Frank | Adjustable wiper blade assembly for a roller fountain dampener |
| DE2022114B2 (en) * | 1970-05-06 | 1973-11-22 | Maschf Augsburg Nuernberg Ag | Equipment on rotary offset printing machines to maintain the required dampening solution layer thickness |
| DE2141247A1 (en) * | 1970-08-19 | 1972-03-09 | Harris Intertype Corp., Cleveland, Ohio (V.St A.) | Method and device for scanning the amount of liquid on an object |
| JPS5137943B2 (en) * | 1971-09-17 | 1976-10-19 | ||
| DE2214721B1 (en) * | 1972-03-25 | 1973-06-14 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | PROCESS AND DEVICE FOR AUTOMATIC ADJUSTMENT OF FLUCTUATIONS IN THE PAINT AND MOISTURE FLUID ON OFFSET MACHINES |
| FR2178802B2 (en) * | 1972-04-07 | 1974-08-02 | Uniroyal | |
| US3930447A (en) * | 1974-07-22 | 1976-01-06 | Harris Corporation | Dual purpose display for printing presses |
| DE2931579C2 (en) * | 1979-08-03 | 1982-11-11 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Device for zonal regulation of the dampening solution supply |
| DE3028025C2 (en) * | 1980-07-24 | 1983-04-14 | Miller-Johannisberg Druckmaschinen Gmbh, 6200 Wiesbaden | Process for changing the flow of ink by differently adjusting individual width zones of an ink knife or individual ink metering elements in printing press inking units |
-
1982
- 1982-03-26 DE DE19823211157 patent/DE3211157A1/en not_active Ceased
-
1983
- 1983-02-25 EP EP83101846A patent/EP0090181A1/en not_active Ceased
- 1983-03-24 JP JP4805583A patent/JPS58217355A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58217355A (en) | 1983-12-17 |
| EP0090181A1 (en) | 1983-10-05 |
| DE3211157A1 (en) | 1983-10-06 |
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