EP2168768B1 - Offset printing press - Google Patents
Offset printing press Download PDFInfo
- Publication number
- EP2168768B1 EP2168768B1 EP20090169912 EP09169912A EP2168768B1 EP 2168768 B1 EP2168768 B1 EP 2168768B1 EP 20090169912 EP20090169912 EP 20090169912 EP 09169912 A EP09169912 A EP 09169912A EP 2168768 B1 EP2168768 B1 EP 2168768B1
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- EP
- European Patent Office
- Prior art keywords
- couple
- ink
- printing
- control device
- dampening
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- 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.)
- Not-in-force
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
- B41F31/045—Remote control of the duct keys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
- B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2233/00—Arrangements for the operation of printing presses
- B41P2233/10—Starting-up the machine
- B41P2233/11—Pre-inking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2233/00—Arrangements for the operation of printing presses
- B41P2233/10—Starting-up the machine
- B41P2233/12—Pre-wetting
Definitions
- the invention relates to an offset printing machine, and more particularly to a printing unit for an offset printing machine, an offset printing machine equipped with the printing unit, and a method of operating the offset printing machine.
- Offset printing machines such as newspaper offset printing presses, today's design are largely automated.
- the offset printing machines usually have a sensor which detects deviations in production parameters and in the printed product and which signals for controlling z.
- B a cut register, a color register and a color density generated.
- the settings for ink supply and dampening solution supply which significantly affect the print quality, are usually corrected manually offline or automatically inline or online. The latter can z. B. traversing or fixed cameras that produce a nearly complete color density profile of measurement marks and / or measurements in the subject.
- the offset printing machine is optimally pre-set (for example with respect to all registers, the ink / dampening agent application and the ink / dampening solution run-up curves).
- An optimal start of the offset printing machine u. a. also dependent on a standardized preliminary stage (workflow).
- the invention has for its object to provide a printing unit for an offset printing machine, equipped with such a printing unit offset printing machine and a method for operating the offset printing machine, which ensure a simple and effective way to control the printing quality affecting process parameters.
- a printing unit for an offset printing press comprises a printing unit with an inking unit for ink supply of the printing unit and a dampening unit for fountain solution supply of the printing unit and a control device which is coupled to the printing unit and its inking unit and dampening unit for controlling this, wherein at least one cylinder of the printing unit temperature measuring means for providing a precise process relevant temperature profile over a bale width of the cylinder of the printing unit away representing temperature signals and first transfer means are integrated for transmitting the temperature signals to the control device, wherein the control device is arranged to control a fountain solution supply of Dampening based on the temperature signals, wherein the printing unit further color measuring means for providing a color application to a substrate representing color signals and secondthbe comprises means for transmitting the color signals to the control device and the control device is arranged to control an ink supply of the inking unit based on the temperature signals and the color signals and the control device is arranged, the dampening solution supply based on stored in the control device, determine predetermined ramp
- the solution according to the invention is based on the principle of measuring temperatures of a printing cylinder as auxiliary quantities and on the basis of these auxiliary variables deriving setting algorithms for the dampening solution feed which influences the print quality.
- the measurement of temperatures of a printing cylinder influences the dampening solution supply and consequently the color density as well.
- At least one forme cylinder for. B. a plate cylinder, the printing unit equipped with the temperature measuring means.
- one or more other printing cylinder or one or more other printing cylinder such as. B. a transfer cylinder (eg rubber cylinder), equipped with the temperature measuring means.
- the temperature is recorded continuously and online during the printing process.
- the integrated in the printing cylinder temperature measuring means preferably have temperature sensors and power supply means that provide a power supply for the sensor operation and the signal transmission.
- the power supply means may comprise, for example, induction means in the form of a coil.
- the coil can be z. B. be acted upon from outside the printing cylinder from a changing magnetic field.
- the inventively realized control system can z. B. acting on a single printing plate on the entire plate cylinder or on all printing cylinders equally.
- a target / actual comparison of image data and / or a target / actual comparison of the color density can be provided according to the invention.
- the color measuring agents can, for. B. in the form of a Handdensitometers (for an offline measurement) and / or in the form of one or more color density measurement sensors and / or Farbortmesssensoren (for inline measurement).
- the color measuring agents are at appropriate locations, such. B. in one direction of the substrate directly after the printing unit (inline measurement), arranged.
- the temperature measurement in one or more printing couples cylinders provides a temperature profile across the entire width of this / these printing cylinder (s).
- This temperature profile changes on the one hand on the one hand, but also during machine downtime. Depending on the length of stay, there can be significant temperature increases, but also reductions.
- These temperature profiles are linked according to the invention with suitable algorithms that influence the dampening solution management and their run-up curve.
- the control device is adapted zonal to determine the ink supply of the inking based on predetermined zonal ink quantity distribution ratios of a printed image to be printed and stored in the control device, and the specific ink supply on Change the basis of the time-dependent variable dampening solution and the color signals while maintaining the zonal ink volume distribution ratios time-dependent.
- the dampening solution guide is closely related to the respective ink feed, which is generally zonally different.
- the color zones approximate the zonal color requirements of the print engine and also follow run-up curves.
- an offset printing press has a printing unit according to one of the preceding embodiments in every conceivable combination.
- the offset printing machine further comprises a control panel, which is coupled to the control device and has the controls for manually zonal changing the ink supply and / or the dampening solution supply.
- control elements between a first position in which the controls are released for actuation, and a second position in which the controls are secured against actuation, displaced.
- the control panel can z. B. be arranged in a control room of the printing press, and the controls can, for. B. as fold-away color / wet keys or retractable panels are formed.
- a monitoring device (monitoring) may be provided. In "normal" production, manual readjustment is not required, so that in such a production the controls may be shifted to the second position.
- a method for operating an offset printing machine having at least one printing unit according to one of the embodiments described above in any conceivable combination, wherein the method in at least one of the cylinders of the printing unit temperatures are measured, a temperature profile over a Ballenbreite of the cylinder of the printing unit across temperature signals are generated, the temperature signals are transmitted to the controller and the controller controls a fountain solution of the dampening based on the temperature signals and a color application is measured on a substrate, wherein the color application representing color Signals are generated, the color signals are transmitted to the control device, and the control device controls an ink supply of the inking unit on the basis of the temperature signals and the color signals, and at S the dampening solution supply is first determined on the basis of stored in the control device, predetermined ramp-up curves for the dampening solution, and from the temperature signals time-dependent temperature profiles of the cylinder of the printing unit are formed, and then changed the dampening solution and their run-up curves based on the temperature profiles time-
- the ink supply of the inking unit is first based on control of the ink feed Predetermined, zonal ink quantity distribution ratios of a printed image to be printed and stored in the control device, predetermined run-up curves for ink supply zonal determined and then the particular ink supply based on the time-varying dampening solution and the color signals while maintaining the zonal ink quantity distribution ratios changed over time ,
- the third aspect of the invention is based on the same principles as the first and second aspects of the invention and provides the same advantages as these.
- the first to third aspects of the invention may be measured in accordance with the principles of the invention, according to which auxiliary quantities are measured for controlling parameters affecting the printing process and, in particular, the print quality parameters, e.g. also combined with an automatic printing plate loading / unloading system, with an automatic print width control for printing cylinder or rollers, with an automatic pre-inking system for printing cylinders or rollers for a low-waste quick start and / or automatic web tension control etc. ,
- FIGS. 1 and 2 show components of a newspaper offset printing machine 1 (hereinafter simply printing press 1).
- the printing machine 1 has a plurality of printing units 10 (in FIG Fig.1 only two shown), which are arranged according to this embodiment in pairs to a plurality of so-called four-high towers.
- the printing units 10 each have four printing units 20, each of which has a plate cylinder in the form of a plate cylinder 21 and a transfer cylinder in the form of a blanket cylinder 22, an inking unit 23 with a plurality of rollers or cylinders (not separately) for ink supply of the printing unit 20th and a dampening unit 24 with a plurality of rollers or cylinders (not separately designated) for dampening solution supply of the printing unit 20 has.
- Each two printing units 20 work together, so that the blanket cylinder 22 of a printing unit 20 forms the printing cylinder or impression cylinder for the other printing unit 20.
- a plurality of temperature measuring sensors 21 a over a bale width of the plate cylinder 21 away and integrated along a circumference that by means of the temperature measuring sensors 21 a temperature signals can be provided, the temperature profile over the bale width and along the circumference of the plate cylinder 21 representing.
- each plate cylinder 21 further first transmission means in the form of a radio transmitter (not shown) are integrated for transmitting the temperature signals to a built-in the printing unit 20 radio receiver (not shown).
- a power supply for the temperature measuring sensors 21 a and the radio transmitter is realized according to the transformer principle via an integrated induction coil in the plate cylinder 21 (not shown).
- Each inking unit 23 has in the axial direction of the cylinders of the printing unit 20 a zonal subdivision (not shown) and a plurality of actuators (not shown) for separately controlling an ink feed for each inking zone.
- Each dampening unit 24 has a number of actuators (not shown) for controlling a dampening solution supply.
- the dampening unit 24 may have a zonal subdivision (not shown) and corresponding actuators (not shown) analogous to the inking unit 23.
- Each printing unit 20 further comprises color measuring means in the form of one or more color density measuring sensors 25 (only one sensor 25 is shown for each printing unit 20) providing color application to color signals representing a substrate (not shown) and second transfer means in the form of electrical leads (not shown), which are coupled to an input / output interface 11 of the printing unit 10 for transmitting the color signals.
- color measuring means in the form of one or more color density measuring sensors 25 (only one sensor 25 is shown for each printing unit 20) providing color application to color signals representing a substrate (not shown) and second transfer means in the form of electrical leads (not shown), which are coupled to an input / output interface 11 of the printing unit 10 for transmitting the color signals.
- radio receiver for the temperature signals of each printing unit 20 and the actuators of each inking unit 23 and each dampening unit 24 via electrical lines, not shown, with the input / output interface 11 of the printing unit 10 are coupled.
- respective drives for the rotationally driven cylinders of the printing units 20 of each printing unit 10 are coupled to the input / output interface 11 of the printing unit 10 via electrical leads, not shown.
- the printing machine 1 further has a control device 40, which is coupled via electrical lines 41 and 42 to the input / output interface 11 of each printing unit 10.
- control device 40 is arranged in a control station (not completely shown and not separately labeled) of the printing machine 1.
- a control panel 50 is further arranged, which is coupled via electrical lines 51 to the control device 40.
- the control panel 50 has a support surface 52 for patterning a printed copy D and controls 53 in the form of a plurality of control buttons for manually zonal changing the ink supply and / or the dampening solution supply.
- the controls 53 are between a first position (see Fig.2 ), in which the control elements 53 are exposed for actuation, and a second position (not shown), in which the control elements 53 are folded away, are displaceable.
- the control device 40 can be realized in the form of hardware and / or software and has a memory 40a in which empirically determined run-up curves for the fountain solution supply and for the ink supply are stored.
- the control device 40 further has a computer device for executing control algorithms or programs stored in the memory 40a.
- the fountain solution supply of the dampening unit 23 is first based on the in the Control device 40 stored, predetermined run-up curves for the dampening agent supply determined.
- time-dependent temperature profiles of the plate cylinder 21 are formed from the temperature signals provided by the temperature measurement sensors 21 a. Thereafter, the dampening solution supply and its run-up curves are changed over time using empirically determined algorithms stored in the control device 40 on the basis of the temperature profiles.
- control algorithms stored in the control device 40 for each printing unit 20 in the control device 40 first, the ink supply of the inking unit based on previously entered in the memory 40a, zonal ink quantity distribution ratios of a printed image to be printed and in the control device 40th stored, predetermined ramp-up curves for the color supply zonal determined.
- the determined ink supply is temporally changed using empirically determined algorithms stored in the controller 40 based on the time-varying fountain solution and the color signals while maintaining the zonal ink amount distribution ratios.
- dampening solution supply and the ink supply and their respective run-up curves are adjusted or continuously corrected using the time-dependent temperature profiles and only a few reference color density measurements to ensure the desired color density and print quality.
Description
Die Erfindung betrifft eine Offsetdruckmaschine, und insbesondere eine Druckeinheit für eine Offsetdruckmaschine, eine mit der Druckeinheit ausgerüstete Offsetdruckmaschine und ein Verfahren zum Betreiben der Offsetdruckmaschine.The invention relates to an offset printing machine, and more particularly to a printing unit for an offset printing machine, an offset printing machine equipped with the printing unit, and a method of operating the offset printing machine.
Offsetdruckmaschinen, wie beispielsweise Zeitungsoffsetdruckmaschinen, heutiger Bauart sind weitestgehend automatisiert. Zu diesem Zweck weisen die Offsetdruckmaschinen in der Regel eine Sensorik auf, welche Abweichungen in Produktionsparametem und im Druckprodukt erfasst und welche Signale zur Regelung von z. B. einem Schnittregister, einem Farbregister und einer Farbdichte erzeugt. Bei üblichen Offsetdruckmaschinen werden die Einstellungen für eine Farbzufuhr und eine Feuchtmittelzufuhr, welche wesentlich die Druckqualität beeinflussen, in der Regel manuell offline oder automatisch inline bzw. online korrigiert. Letzteres kann z. B. über traversierende oder feststehende Kameras erfolgen, die ein nahezu vollständiges Farbdichteprofil aus Messmarken und/oder aus Messungen im Sujet erzeugen. Dies ist sehr aufwendig und setzt ferner voraus, dass die Offsetdruckmaschine optimal voreingestellt ist (z. B. bezüglich aller Register, des Farb/Feuchtmittel-Auftrags und der Farb/Feuchtmittel-Hochlaufkurven). Ein optimales Anfahren der Offsetdruckmaschine ist u. a. auch abhängig von einer standardisierten Vorstufe (Workflow).Offset printing machines, such as newspaper offset printing presses, today's design are largely automated. For this purpose, the offset printing machines usually have a sensor which detects deviations in production parameters and in the printed product and which signals for controlling z. B. a cut register, a color register and a color density generated. In the case of conventional offset printing presses, the settings for ink supply and dampening solution supply, which significantly affect the print quality, are usually corrected manually offline or automatically inline or online. The latter can z. B. traversing or fixed cameras that produce a nearly complete color density profile of measurement marks and / or measurements in the subject. This is very complicated and requires, moreover, that the offset printing machine is optimally pre-set (for example with respect to all registers, the ink / dampening agent application and the ink / dampening solution run-up curves). An optimal start of the offset printing machine u. a. also dependent on a standardized preliminary stage (workflow).
Aus dem Stand der Technik sind zudem die Schriften
Der Erfindung liegt die Aufgabe zugrunde, eine Druckeinheit für eine Offsetdruckmaschine, eine mit einer solchen Druckeinheit ausgerüstete Offsetdruckmaschine sowie ein Verfahren zum Betreiben der Offsetdruckmaschine bereitzustellen, welche auf einfache und effektive Weise eine Regelung von die Druckqualität beeinflussenden Prozessparametern gewährleisten.The invention has for its object to provide a printing unit for an offset printing machine, equipped with such a printing unit offset printing machine and a method for operating the offset printing machine, which ensure a simple and effective way to control the printing quality affecting process parameters.
Dies wird mit einer Druckeinheit gemäß Anspruch 1, einer Offsetdruckmaschine gemäß Anspruch 3 bzw. einem Verfahren gemäß Anspruch 6 erreicht. Weiterbildungen der Erfindung sind in den jeweils abhängigen Ansprüchen definiert.This is achieved with a printing unit according to
Gemäß einem ersten Aspekt der Erfindung weist eine Druckeinheit für eine Offsetdruckmaschine ein Druckwerk mit einem Farbwerk zur Farbversorgung des Druckwerks und einem Feuchtwerk zur Feuchtmittelversorgung des Druckwerks und eine Steuervorrichtung auf, die mit dem Druckwerk sowie dessen Farbwerk und Feuchtwerk zum Steuern dieser gekoppelt ist, wobei in wenigstens einen Zylinder des Druckwerks Temperaturmessmittel zum Bereitstellen von einem präzisen verfahrensrelevanten Temperaturverlauf über eine Ballenbreite des Zylinders des Druckwerks hinweg repräsentierenden Temperatur-Signalen und erste Übertragungsmittel integriert sind zum Übertragen der Temperatur-Signale an die Steuervorrichtung, wobei die Steuervorrichtung eingerichtet ist zum Steuern einer Feuchtmittelzufuhr des Feuchtwerks auf Basis der Temperatur-Signale, wobei die Druckeinheit ferner Farbmessmittel zum Bereitstellen von eine Farbaufbringung auf einen Bedruckstoff repräsentierenden Farb-Signalen und zweite Übertragungsmittel auf zum Übertragen der Farb-Signale an die Steuervorrichtung aufweist und die Steuervorrichtung eingerichtet ist zum Steuern einer Farbzufuhr des Farbwerks auf Basis der Temperatur-Signale und der Farb-Signale und die Steuervorrichtung eingerichtet ist, die Feuchtmittelzufuhr auf Basis von in der Steuervorrichtung gespeicherten, vorbestimmten Hochlaufkurven für die Feuchtmittelzufuhr zu bestimmen und aus den Temperatur-Signalen zeitabhängige Temperaturprofile des Zylinders des Druckwerks zu bilden sowie die Feuchtmittelzufuhr und deren Hochlaufkurven auf Basis der Temperatur-profile zeitabhängig zu verändern.According to a first aspect of the invention, a printing unit for an offset printing press comprises a printing unit with an inking unit for ink supply of the printing unit and a dampening unit for fountain solution supply of the printing unit and a control device which is coupled to the printing unit and its inking unit and dampening unit for controlling this, wherein at least one cylinder of the printing unit temperature measuring means for providing a precise process relevant temperature profile over a bale width of the cylinder of the printing unit away representing temperature signals and first transfer means are integrated for transmitting the temperature signals to the control device, wherein the control device is arranged to control a fountain solution supply of Dampening based on the temperature signals, wherein the printing unit further color measuring means for providing a color application to a substrate representing color signals and second Übbe comprises means for transmitting the color signals to the control device and the control device is arranged to control an ink supply of the inking unit based on the temperature signals and the color signals and the control device is arranged, the dampening solution supply based on stored in the control device, determine predetermined ramp-up curves for dampening solution supply and to form from the temperature signals time-dependent temperature profiles of the cylinder of the printing unit as well as the dampening solution supply and their run-up curves on the basis of the temperature profile to change time-dependent.
Der erfindungsgemäßen Lösung liegt das Prinzip zugrunde, Temperaturen eines Druckwerkszylinders als Hilfsgrößen zu messen und auf Basis dieser Hilfsgrößen Stellalgorithmen für die die Druckqualität beeinflussende Feuchtmittelzufuhr abzuleiten. Mit anderen Worten wird über die Messung von Temperaturen eines Druckwerkszylinders auf die Feuchtmittelzufuhr und damit in der Folge auch auf die Farbdichte Einfluss genommen.The solution according to the invention is based on the principle of measuring temperatures of a printing cylinder as auxiliary quantities and on the basis of these auxiliary variables deriving setting algorithms for the dampening solution feed which influences the print quality. In other words, the measurement of temperatures of a printing cylinder influences the dampening solution supply and consequently the color density as well.
Dazu ist bevorzugt zumindest ein Formzylinder, z. B. ein Plattenzylinder, des Druckwerks mit den Temperaturmessmitteln ausgerüstet. Natürlich ist es auch möglich, einen oder mehrere weitere Druckwerkszylinder oder einen oder mehrere andere Druckwerkszylinder, wie z. B. einen Übertragungszylinder (z. B. Gummizylinder), mit den Temperaturmessmitteln auszurüsten. Die Temperaturerfassung erfolgt während des Druckprozesses kontinuierlich und online. Die in den Druckwerkszylinder integrierten Temperaturmessmittel weisen bevorzugt Temperatursensoren und Stromversorgungsmittel auf, die eine Stromversorgung für den Sensorbetrieb und die Signalübertragung bereitstellen. Die Stromversorgungsmittel können beispielsweise Induktionsmittel in Form einer Spule aufweisen. Die Spule kann dabei z. B. von außerhalb des Druckwerkszylinders aus mit einem sich ändernden Magnetfeld beaufschlagbar sein.For this purpose, preferably at least one forme cylinder, for. B. a plate cylinder, the printing unit equipped with the temperature measuring means. Of course, it is also possible, one or more other printing cylinder or one or more other printing cylinder, such as. B. a transfer cylinder (eg rubber cylinder), equipped with the temperature measuring means. The temperature is recorded continuously and online during the printing process. The integrated in the printing cylinder temperature measuring means preferably have temperature sensors and power supply means that provide a power supply for the sensor operation and the signal transmission. The power supply means may comprise, for example, induction means in the form of a coil. The coil can be z. B. be acted upon from outside the printing cylinder from a changing magnetic field.
Im Unterschied zum Stand der Technik ist nur eine einzige (oder sehr wenige mehrere) Referenzmessung(en) der Farbmessmittel nötig, wobei die Ergebnisse der Referenzmessung(en) mit den bereits ermittelten Parametern für die Feuchtmittelführung verknüpft werden. Dadurch kann auf die zonale Manipulation von Farbzonen des Farbwerks verzichtet werden. Das erfindungsgemäß realisierte Regelsystem kann z. B. auf eine einzelne Druckplatte, auf den gesamten Plattenzylinder oder auch auf alle Druckwerkszylinder gleichermaßen einwirken. In diesem Zusammenhang kann/können erfindungsgemäß ein Soll/Ist-Vergleich von Bilddaten und/oder ein Soll/Ist-Vergleich der Farbdichte vorgesehen sein.In contrast to the prior art, only a single (or very few more) reference measurement (s) of the color measurement means is necessary, the results of the reference measurement (s) being linked to the already determined parameters for the dampening solution management. As a result, it is possible to dispense with the zonal manipulation of ink zones of the inking unit. The inventively realized control system can z. B. acting on a single printing plate on the entire plate cylinder or on all printing cylinders equally. In this context, a target / actual comparison of image data and / or a target / actual comparison of the color density can be provided according to the invention.
Die Farbmessmittel können z. B. in Form eines Handdensitometers (für eine Offline-Messung) und/oder in Form von einem oder mehreren Farbdichtemesssensoren und/oder Farbortmesssensoren (für eine Inline-Messung) ausgebildet sein. Die Farbmessmittel sind an geeigneten Stellen, wie z. B. in einer Laufrichtung des Bedruckstoffs direkt nach dem Druckwerk (bei Inline-Messung), angeordnet.The color measuring agents can, for. B. in the form of a Handdensitometers (for an offline measurement) and / or in the form of one or more color density measurement sensors and / or Farbortmesssensoren (for inline measurement). The color measuring agents are at appropriate locations, such. B. in one direction of the substrate directly after the printing unit (inline measurement), arranged.
D.h., die Temperaturmessung in einem oder mehreren Druckwerkszylindern liefert ein Temperaturprofil über die gesamte Breite dieses/dieser Druckwerkszylinder(s). Dieses Temperaturprofil verändert sich über die Laufzeit einerseits, aber auch bei Maschinenstillstand. Dort kann es je nach Verweildauer zu signifikanten Temperaturerhöhungen, aber auch zu Absenkungen kommen. Diese Temperaturprofile werden erfindungsgemäß mit geeigneten Algorithmen verknüpft, die die Feuchtmittelführung und deren Hochlaufkurve beeinflussen.That is, the temperature measurement in one or more printing couples cylinders provides a temperature profile across the entire width of this / these printing cylinder (s). This temperature profile changes on the one hand on the one hand, but also during machine downtime. Depending on the length of stay, there can be significant temperature increases, but also reductions. These temperature profiles are linked according to the invention with suitable algorithms that influence the dampening solution management and their run-up curve.
Gemäß einer Ausführungsform der erfindungsgemäßen Druckeinheit nach Anspruch 2 ist die Steuervorrichtung eingerichtet, die Farbzufuhr des Farbwerks auf Basis vorbestimmter, zonalen Farbmengen-Verteilungsverhältnisse eines zu druckenden Druckbildes und von in der Steuervorrichtung gespeicherten, vorbestimmten Hochlaufkurven für die Farbzufuhr zonal zu bestimmen sowie die bestimmte Farbzufuhr auf Basis der zeitabhängig veränderlichen Feuchtmittelzufuhr und der Farb-Signale unter Beibehaltung der zonalen Farbmengen-Verteilungsverhältnisse zeitabhängig zu verändern.According to one embodiment of the printing unit according to the invention as claimed in claim 2, the control device is adapted zonal to determine the ink supply of the inking based on predetermined zonal ink quantity distribution ratios of a printed image to be printed and stored in the control device, and the specific ink supply on Change the basis of the time-dependent variable dampening solution and the color signals while maintaining the zonal ink volume distribution ratios time-dependent.
Erfindungsgemäß wird ausgenutzt, dass die Feuchtmittelführung in einem engen Zusammenhang mit der jeweiligen Farbzufuhr, die in der Regel zonal unterschiedlich ist, steht. Die Farbzonen bilden in etwa den zonalen Farbbedarf des Drucksujets ab und folgen ebenfalls Hochlaufkurven. Durch Verknüpfung der ermittelten Parameter für die Feuchtmittelführung mit den Farb-Signalen ist es erfindungsgemäß möglich, die Farbzufuhr unter Beibehaltung der zonalen Farbmengen-Verteilungsverhältnisse zeitabhängig zu verändern und damit die Farbdichte zu beeinflussen.According to the invention, use is made of the fact that the dampening solution guide is closely related to the respective ink feed, which is generally zonally different. The color zones approximate the zonal color requirements of the print engine and also follow run-up curves. By linking the parameters determined for the fountain solution with the color signals, it is possible according to the invention to change the ink supply time-dependent while maintaining the zonal ink volume distribution ratios and thus to influence the color density.
Gemäß einem zweiten Aspekt der Erfindung weist eine Offsetdruckmaschine eine Druckeinheit gemäß einer der vorhergehenden Ausführungsform in jeder denkbaren Kombination auf.According to a second aspect of the invention, an offset printing press has a printing unit according to one of the preceding embodiments in every conceivable combination.
Gemäß einer Ausführungsform weist die erfindungsgemäße Offsetdruckmaschine ferner ein Bedienpult auf, das mit der Steuervorrichtung gekoppelt ist und das Steuerelemente aufweist zum manuellen zonalen Verändern der Farbzufuhr und/oder der Feuchtmittelzufuhr.According to one embodiment, the offset printing machine according to the invention further comprises a control panel, which is coupled to the control device and has the controls for manually zonal changing the ink supply and / or the dampening solution supply.
Gemäß dieser Ausgestaltung der Erfindung kann z. B. bei extremen Sujets und/oder starken Abweichungen der verfahrenstechnischen Systemkomponenten, wie z. B. Papier, Farbe und Feuchtmittelzusatz, eine zonale, manuelle Manipulation der Dosierung von Feuchtmittel und/oder Farbe vorgenommen werden.According to this embodiment of the invention, for. B. extreme subjects and / or strong deviations of the procedural system components such. As paper, color and fountain solution, a zonal, manual manipulation of the dosage of dampening solution and / or color are made.
Gemäß einer weiteren Ausführungsform der erfindungsgemäßen Offsetdruckmaschine sind die Steuerelemente zwischen einer ersten Position, in der die Steuerelemente zum Betätigen freigegeben sind, und einer zweiten Position, in der die Steuerelemente gegen Betätigen gesichert sind, verlagerbar.According to a further embodiment of the offset printing machine according to the invention, the control elements between a first position in which the controls are released for actuation, and a second position in which the controls are secured against actuation, displaced.
Das Bedienpult kann z. B. in einem Leitstand der Druckmaschine angeordnet sein, und die Steuerelemente können z. B. als wegklappbare Farb-/Feucht-Tasten oder versenkbare Bedienfelder ausgebildet sein. Zusätzlich kann zur vorbeugenden Prozessbeobachtung im Leitstand z. B. eine Überwachungseinrichtung (Monitoring) vorgesehen sein. Bei "normaler" Produktion ist ein manuelles Nachregeln nicht erforderlich, so dass bei einer solchen Produktion die Steuerelemente in die zweite Position verlagert sein können.The control panel can z. B. be arranged in a control room of the printing press, and the controls can, for. B. as fold-away color / wet keys or retractable panels are formed. In addition, for preventive process monitoring in the control room z. B. a monitoring device (monitoring) may be provided. In "normal" production, manual readjustment is not required, so that in such a production the controls may be shifted to the second position.
Gemäß einem dritten Aspekt der Erfindung ist ein Verfahren bereitgestellt zum Betreiben einer Offsetdruckmaschine mit wenigstens einer Druckeinheit gemäß einer der oben beschriebenen erfindungsgemäßen Ausführungsform in jeder denkbaren Kombination, wobei bei dem Verfahren in wenigstens einem der Zylinder des Druckwerks Temperaturen gemessen werden, wobei einen Temperaturverlauf über eine Ballenbreite des Zylinders des Druckwerks hinweg repräsentierende Temperatur-Signale erzeugt werden, die Temperatur-Signale an die Steuervorrichtung übertragen werden und die Steuervorrichtung eine Feuchtmittelzufuhr des Feuchtwerks auf Basis der Temperatur-Signale steuert und eine Farbaufbringung auf einen Bedruckstoff gemessen wird, wobei die Farbaufbringung repräsentierende Farb-Signale erzeugt werden, die Farb-Signale an die Steuervorrichtung übertragen werden und die Steuervorrichtung eine Farbzufuhr des Farbwerks auf Basis der Temperatur-Signale und der Farb-Signale steuert und beim Steuern der Feuchtmittelzufuhr zuerst die Feuchtmittelzufuhr auf Basis von in der Steuervorrichtung gespeicherten, vorbestimmten Hochlaufkurven für die Feuchtmittelzufuhr bestimmt wird, und aus den Temperatur-Signalen zeitabhängige Temperaturprofile des Zylinders des Druckwerks gebildet werden, sowie danach die Feuchtmittelzufuhr und deren Hochlaufkurven auf Basis der Temperaturprofile zeitabhängig verändert werden.According to a third aspect of the invention, a method is provided for operating an offset printing machine having at least one printing unit according to one of the embodiments described above in any conceivable combination, wherein the method in at least one of the cylinders of the printing unit temperatures are measured, a temperature profile over a Ballenbreite of the cylinder of the printing unit across temperature signals are generated, the temperature signals are transmitted to the controller and the controller controls a fountain solution of the dampening based on the temperature signals and a color application is measured on a substrate, wherein the color application representing color Signals are generated, the color signals are transmitted to the control device, and the control device controls an ink supply of the inking unit on the basis of the temperature signals and the color signals, and at S the dampening solution supply is first determined on the basis of stored in the control device, predetermined ramp-up curves for the dampening solution, and from the temperature signals time-dependent temperature profiles of the cylinder of the printing unit are formed, and then changed the dampening solution and their run-up curves based on the temperature profiles time-dependent become.
Gemäß einer Ausführungsform des erfindungsgemäßen Verfahrens wird beim Steuern der Farbzufuhr zuerst die Farbzufuhr des Farbwerks auf Basis vorbestimmter, zonaler Farbmengen-Verteilungsverhältnisse eines zu druckenden Druckbildes und von in der Steuervorrichtung gespeicherten, vorbestimmten Hochlaufkurven für die Farbzufuhr zonal bestimmt sowie wird danach die bestimmte Farbzufuhr auf Basis der zeitabhängig veränderlichen Feuchtmittelzufuhr und der Farb-Signale unter Beibehaltung der zonalen Farbmengen-Verteilungsverhältnisse zeitabhängig verändert.According to one embodiment of the method according to the invention, the ink supply of the inking unit is first based on control of the ink feed Predetermined, zonal ink quantity distribution ratios of a printed image to be printed and stored in the control device, predetermined run-up curves for ink supply zonal determined and then the particular ink supply based on the time-varying dampening solution and the color signals while maintaining the zonal ink quantity distribution ratios changed over time ,
Der dritte Aspekt der Erfindung basiert auf den gleichen Prinzipien wie der erste und zweite Aspekt der Erfindung und stellt die gleichen Vorteile wie diese bereit.The third aspect of the invention is based on the same principles as the first and second aspects of the invention and provides the same advantages as these.
Der erste bis dritte Aspekt der Erfindung können gemäß den Prinzipien der Erfindung, nach denen Hilfsgrößen gemessen werden zum Steuern von den Druckprozess und insbesondere die Druckqualität beeinflussenden Parametern, z.B. auch in Verbindung mit einem automatischen Druckplatten-Lade/Entlade-System, mit einer automatischen Abdruckbreitenregelung für Druckwerkszylinder bzw. -walzen, mit einem automatischen Voreinfärbesystem für Druckwerkszylinder bzw. -walzen für einen makulaturarmen Schnellstart und/oder mit einer automatischen Bahnspannungsregelung usw. kombiniert sein.The first to third aspects of the invention may be measured in accordance with the principles of the invention, according to which auxiliary quantities are measured for controlling parameters affecting the printing process and, in particular, the print quality parameters, e.g. also combined with an automatic printing plate loading / unloading system, with an automatic print width control for printing cylinder or rollers, with an automatic pre-inking system for printing cylinders or rollers for a low-waste quick start and / or automatic web tension control etc. ,
Auf diese Weise ist eine für die Bedienung zonenlose und im Druckprozess quasi bedienerlose oder bedienfreie bzw. äußerst bedienarme Offsetdruckmaschine realisierbar, wodurch in erheblichem Ausmaß Personalkosten, Rüstzeiten bzw. Anlaufzeiten, Materialkosten usw. eingespart werden können.In this way, a zoneless for the operation and in the printing process quasi operatorless or operator-free or extremely low-service offset printing machine can be realized, which can be saved to a considerable extent personnel costs, set-up times or start-up times, material costs, etc.
Im Folgenden wird die Erfindung anhand bevorzugter Ausführungsformen und unter Bezugnahme auf die beigefügten Figuren detaillierter beschrieben.
- Fig.1
- zeigt Komponenten einer Offsetdruckmaschine gemäß einer Ausführungsform der Erfindung.
- Fig.2
- zeigt weitere Komponenten der Offsetdruckmaschine von
Figur 1
- Fig.1
- shows components of an offset printing press according to an embodiment of the invention.
- Fig.2
- shows further components of the offset printing press from
FIG. 1 ,
Die
Die Druckeinheiten 10 weisen jeweils vier Druckwerke 20 auf, von denen jedes einen Formzylinder in Form eines Plattenzylinders 21 und einen Übertragungszylinder in Form eines Gummizylinders 22, ein Farbwerk 23 mit einer Mehrzahl von Walzen bzw. Zylindern (nicht separat bezeichnet) zur Farbversorgung des Druckwerks 20 und ein Feuchtwerk 24 mit einer Mehrzahl von Walzen bzw. Zylindern (nicht separat bezeichnet) zur Feuchtmittelversorgung des Druckwerks 20 aufweist.The
Jeweils zwei Druckwerke 20 arbeiten zusammen, so dass der Gummizylinder 22 des einen Druckwerks 20 den Druckzylinder bzw. Gegendruckzylinder für das andere Druckwerk 20 bildet.Each two
Gemäß dieser Ausführungsform sind in den Plattenzylinder 21 eines jeden Druckwerks eine Mehrzahl von Temperaturmesssensoren 21 a derart über eine Ballenbreite des Plattenzylinders 21 hinweg und entlang eines Umfangs dessen integriert, dass mittels der Temperaturmesssensoren 21 a Temperatur-Signale bereitstellbar sind, die einen Temperaturverlauf über die Ballenbreite und entlang des Umfangs des Plattenzylinders 21 repräsentierenden.According to this embodiment, in the
In jeden Plattenzylinder 21 sind ferner erste Übertragungsmittel in Form eines Funksenders (nicht gezeigt) integriert zum Übertragen der Temperatur-Signale an einen in das Druckwerk 20 integrierten Funkempfänger (nicht gezeigt).In each
Eine Stromversorgung für die Temperaturmesssensoren 21 a und den Funksender ist gemäß dem Transformatorprinzip über eine in den Plattenzylinder 21 integrierte Induktionsspule (nicht gezeigt) realisiert.A power supply for the
Jedes Farbwerk 23 weist in Axialrichtung der Zylinder bzw. Walzen des Druckwerks 20 eine zonale Unterteilung (nicht gezeigt) und eine Mehrzahl von Stellgliedern (nicht gezeigt) zum separaten Steuern einer Farbzufuhr für jede Farbzone auf.Each inking
Jedes Feuchtwerk 24 weist eine Anzahl von Stellgliedern (nicht gezeigt) zum Steuern einer Feuchtmittelzufuhr auf. Gemäß einer Ausführungsform kann das Feuchtwerk 24 analog zum Farbwerk 23 eine zonale Unterteilung (nicht gezeigt) und entsprechende Stellglieder (nicht gezeigt) aufweisen.Each dampening
Jedes Druckwerk 20 weist ferner Farbmessmittel in Form eines oder mehrerer Farbdichtemesssensoren 25 (für jedes Druckwerk 20 ist nur ein Sensor 25 gezeigt), die eine Farbaufbringung auf einen Bedruckstoff (nicht gezeigt) repräsentierende Farb-Signale bereitstellen, und zweite Übertragungsmittel in Form von elektrischen Leitungen (nicht gezeigt) auf, die zum Übertragen der Farb-Signale mit einer Eingabe/Ausgabe-Schnittstelle 11 der Druckeinheit 10 gekoppelt sind.Each
Ferner sind auch der Funkempfänger für die Temperatur-Signale jedes Druckwerks 20 und die Stellglieder jedes Farbwerks 23 und jedes Feuchtwerks 24 über nicht gezeigte elektrische Leitungen mit der Eingabe/Ausgabe-Schnittstelle 11 der Druckeinheit 10 gekoppelt.Further, the radio receiver for the temperature signals of each
Außerdem sind jeweilige Antriebe für die drehangetriebenen Zylinder der Druckwerke 20 jeder Druckeinheit 10 über nicht gezeigte elektrische Leitungen mit der Eingabe/Ausgabe-Schnittstelle 11 der Druckeinheit 10 gekoppelt.In addition, respective drives for the rotationally driven cylinders of the
Die Druckmaschine 1 weist ferner eine Steuervorrichtung 40 auf, die über elektrische Leitungen 41 bzw. 42 mit der Eingabe/Ausgabe-Schnittstelle 11 einer jeden Druckeinheit 10 gekoppelt ist.The
Gemäß dieser Ausführungsform ist die Steuervorrichtung 40 in einem Leitstand (nicht vollständig gezeigt und nicht separat bezeichnet) der Druckmaschine 1 angeordnet. In dem Leitstand ist ferner ein Bedienpult 50 angeordnet, das über elektrische Leitungen 51 mit der Steuervorrichtung 40 gekoppelt ist.According to this embodiment, the
Das Bedienpult 50 weist eine Auflagefläche 52 zum Bemustern eines Druckexemplars D sowie Steuerelemente 53 in Form einer Mehrzahl von Bedientasten zum manuellen zonalen Verändern der Farbzufuhr und/oder der Feuchtmittelzufuhr auf.The
Die Steuerelemente 53 sind zwischen einer ersten Position (siehe
Die Steuervorrichtung 40 kann in Form von Hardware und/oder Software realisiert sein und weist einen Speicher 40a auf, in dem empirisch ermittelte Hochlaufkurven für die Feuchtmittelzufuhr und für die Farbzufuhr abgespeichert sind. Die Steuervorrichtung 40 weist ferner eine Rechnereinrichtung auf zum Abarbeiten von in dem Speicher 40a gespeicherten Steueralgorithmen bzw. Programmen.The
Gemäß den in der Steuervorrichtung 40 gespeicherten Steueralgorithmen bzw. Programmen wird für jedes Druckwerk 20 in der Steuervorrichtung 40 die Feuchtmittelzufuhr des Feuchtwerks 23 zuerst auf Basis der in der Steuervorrichtung 40 gespeicherten, vorbestimmten Hochlaufkurven für die Feuchtmittelzufuhr bestimmt.According to the control algorithms or programs stored in the
Dann werden aus den mittels der Temperaturmesssensoren 21 a bereitgestellten Temperatur-Signalen zeitabhängige Temperaturprofile des Plattenzylinders 21 gebildet. Danach werden die Feuchtmittelzufuhr und deren Hochlaufkurven unter Verwendung empirisch ermittelter und in der Steuervorrichtung 40 gespeicherter Algorithmen auf Basis der Temperaturprofile zeitabhängig verändert.Then, time-dependent temperature profiles of the
Ferner wird gemäß den in der Steuervorrichtung 40 gespeicherten Steueralgorithmen bzw. Programmen für jedes Druckwerk 20 in der Steuervorrichtung 40 zuerst die Farbzufuhr des Farbwerks auf Basis von zuvor in den Speicher 40a eingegebener, zonaler Farbmengen-Verteilungsverhältnisse eines zu druckenden Druckbildes und der in der Steuervorrichtung 40 gespeicherten, vorbestimmten Hochlaufkurven für die Farbzufuhr zonal bestimmt.Further, according to the control algorithms stored in the
Dann wird die bestimmte Farbzufuhr unter Verwendung empirisch ermittelter und in der Steuervorrichtung 40 gespeicherter Algorithmen auf Basis der zeitabhängig veränderlichen Feuchtmittelzufuhr und der Farb-Signale unter Beibehaltung der zonalen Farbmengen-Verteilungsverhältnisse zeitabhängig verändert.Then, the determined ink supply is temporally changed using empirically determined algorithms stored in the
Auf diese Weise werden die Feuchtmittelzufuhr und die Farbzufuhr sowie deren jeweilige Hochlaufkurven unter Verwendung der zeitabhängigen Temperaturprofile und nur weniger Referenzmesswerte bezüglich der Farbdichte so angepasst bzw. stetig korrigiert, dass die gewünschte Farbdichte und Druckqualität sichergestellt werden.In this way, the dampening solution supply and the ink supply and their respective run-up curves are adjusted or continuously corrected using the time-dependent temperature profiles and only a few reference color density measurements to ensure the desired color density and print quality.
- 11
- OffsetdruckmaschineOffset
- 1010
- Druckeinheitprinting unit
- 1111
- Eingabe/Ausgabe-SchnittstelleInput / output interface
- 2020
- Druckwerkprinting unit
- 2121
- Plattenzylinderplate cylinder
- 21 a21 a
- TemperaturmesssensorTemperature measurement sensor
- 2222
- Gummizylinderrubber cylinder
- 2323
- Farbwerkinking
- 2424
- Feuchtwerkdampening
- 2525
- FarbdichtemesssensorenColor density measuring sensors
- 4040
- Steuervorrichtungcontrol device
- 40a40a
- SpeicherStorage
- 4141
- elektrische Leitungenelectric lines
- 4242
- elektrische Leitungenelectric lines
- 5050
- Bedienpultcontrol panel
- 5151
- elektrische Leitungenelectric lines
- 5252
- Auflageflächebearing surface
- 5353
- Steuerelementecontrols
Claims (7)
- A printing unit (10) for an offset printing press (1), comprising: a printing couple (20) with an inking couple (23) for the ink supply of the printing couple (20) and a dampening unit (24) for the dampening solution supply of the printing couple (20), and a control device (40), which is coupled to the printing couple (20) and to the inking couple (23) and dampening couple (24) of the latter for controlling these, wherein in at least one of the cylinders (21) of the printing couple (20) temperature measurement means (21a) for providing temperature signals representing a temperature profile over a crown width of the cylinder (21) of the printing couple (20) and first transfer means are integrated for transferring the temperature signals to the control device (40), and wherein the control device (40) is equipped for controlling a dampening solution feed of the dampening couple (24) based on the temperature signals, characterized in that- a- ink measurement means (25) for providing ink signals representing an ink application on a substrate and second transmission means are provided for transmitting the ink signals to the control device (40), and- b- the control device (40) is equipped for controlling an ink feed of the inking couple (23) based on the temperature signals and the ink signals and- c- the control device (40) is equipped to determine the dampening solution feed based on predetermined run-up curves for the dampening solution feed stored in the control device (40) and- d- to form time-dependent temperature profiles of the cylinder (21) of the printing couple (20) from the temperature signals and to change the dampening solution feed and its run-up curves based on the temperature profiles as a function of time.
- The printing unit (10) according to Claim 1, wherein the control device (40) is equipped to zonally determine the ink feed of the inking couple (24) based on predetermined zonal ink volume distribution ratios of a printing image to be printed and predetermined run-up curves for the ink feed stored in the control device (40) and to change the determined ink feed based on the dampening means feed that is variable as a function of time and the colour signals subject to maintaining the zonal ink volume distribution ratios as a function of time.
- An offset printing press (1) with a printing unit (10) according to any one of the Claims 1 to 2.
- The offset printing press (1) according to Claim 3, furthermore with an operating disc (50), which is coupled to the control device (40) and which comprises control elements (53) for the manually zonal changing of the ink feed and/or of the dampening solution feed.
- The offset printing press (1) according to Claim 4, wherein the control elements (53) can be moved between a first position, in which the control elements (53) are released for actuating, and a second position, in which the control elements (53) are secured against actuating.
- A method for operating an offset printing press (1) with at least one printing unit (10), comprising a printing couple (20) with an inking couple (23) for the ink supply of the printing couple (20) and a dampening couple (24) for the dampening solution supply of the printing couple (20) and a control device (40), which is coupled to the printing couple (20) as well as its inking couple (23) and dampening couple (24) for controlling these, wherein in at least one cylinder (21) of the printing couple (20) temperatures are measured, wherein temperature signals representing a temperature profile over a crown width of the cylinder (21) are generated, the temperature signals are transmitted to the control device (40) and the control device (40) controls a dampening solution feed of the dampening couple (24) based on the temperature signals, characterized in that- a- an ink application on a substrate is measured, wherein colour signals representing the ink application are generated, the colour signals are transmitted to the control device (40), and- b- the control device (40) controls an ink feed of the inking couple (23) based on the temperature signals and the colour signals and- c- during the controlling of the dampening solution feed the dampening solution feed is first determined based on predetermined run-up curves for the dampening solution feed stored in the control device (40) and- d- time-dependent temperature profiles of the cylinder (21) of the printing couple (20) are formed from the temperature signals and thereafter the dampening solution feed and its run-up curves are changed based on the temperature profiles as a function of time.
- The method according to Claim 6, wherein during the controlling of the ink feed the ink feed of the inking couple (24) is first zonally determined based on predetermined zonal ink volume distribution ratios of a printing image to be printed and of predetermined run-up curves for the ink feed stored in the control device (40) and thereafter the determined ink feed is changed based on the dampening solution feed that is variable as a function of time and of the colour signals subject to maintaining the zonal ink volume distribution ratios as a function of time.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810049355 DE102008049355A1 (en) | 2008-09-29 | 2008-09-29 | Offset |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP2168768A2 EP2168768A2 (en) | 2010-03-31 |
| EP2168768A3 EP2168768A3 (en) | 2010-12-01 |
| EP2168768B1 true EP2168768B1 (en) | 2014-04-02 |
Family
ID=41413362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20090169912 Not-in-force EP2168768B1 (en) | 2008-09-29 | 2009-09-10 | Offset printing press |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2168768B1 (en) |
| DE (1) | DE102008049355A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015104469A1 (en) * | 2015-03-25 | 2016-09-29 | Manroland Web Systems Gmbh | Method for operating a printing machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1211266B (en) * | 1987-08-17 | 1989-10-12 | Grapho Eng Srl | AUTOMATIC ADJUSTMENT CONTINUOUS WATERING SYSTEM FOR OFFSET PRINTING MACHINES |
| FR2666765B1 (en) * | 1990-09-14 | 1994-04-15 | Man Roland Druckmaschinen Ag | METHOD FOR CONTROLLING THE WETTING AGENT SUPPLY ON THE PRINTING PLATE OF AN OFFSET PRINTING MACHINE. |
| AU3362499A (en) * | 1998-03-23 | 1999-10-18 | Goss Graphic Systems, Inc. | Method and apparatus for controlling a dampener of a lithographic printing press |
| DE19958252A1 (en) | 1999-12-03 | 2001-06-07 | Heidelberger Druckmasch Ag | Moisture-control printing machine, uses control circuit having fuzzy logic for estimating the foreseen required feed or supply of dampening agent |
| JP2001199052A (en) * | 2000-01-17 | 2001-07-24 | Toshiba Mach Co Ltd | Temperature controller for ink in ink fountain and dampening water in water pot of printer |
| JP3556927B2 (en) | 2001-07-04 | 2004-08-25 | 三菱重工業株式会社 | Printing press driving support device, printing press driving support system, and printing press driving support method |
| DE10325185B4 (en) * | 2002-07-01 | 2017-04-13 | Heidelberger Druckmaschinen Ag | Method for operating a printing unit of a printing press as a function of the color temperature and according to the method operating press control |
| SE526315C2 (en) * | 2004-05-07 | 2005-08-23 | Baldwin Jimek Ab | A control system and method for a printing press |
-
2008
- 2008-09-29 DE DE200810049355 patent/DE102008049355A1/en not_active Withdrawn
-
2009
- 2009-09-10 EP EP20090169912 patent/EP2168768B1/en not_active Not-in-force
Also Published As
| Publication number | Publication date |
|---|---|
| EP2168768A3 (en) | 2010-12-01 |
| EP2168768A2 (en) | 2010-03-31 |
| DE102008049355A1 (en) | 2010-04-01 |
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