EP0135700A2 - Method of adjusting the inking unit of a printing machine - Google Patents
Method of adjusting the inking unit of a printing machine Download PDFInfo
- Publication number
- EP0135700A2 EP0135700A2 EP84108725A EP84108725A EP0135700A2 EP 0135700 A2 EP0135700 A2 EP 0135700A2 EP 84108725 A EP84108725 A EP 84108725A EP 84108725 A EP84108725 A EP 84108725A EP 0135700 A2 EP0135700 A2 EP 0135700A2
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- European Patent Office
- Prior art keywords
- ink
- fountain roller
- measured
- ink fountain
- metering elements
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
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Classifications
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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
- B41F33/0063—Devices for measuring the thickness of liquid films on rollers or cylinders
-
- 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
Definitions
- the invention relates to a method for adjusting the inking unit of a printing press with a plurality of ink metering elements, the distances of which from an ink fountain roller can be set independently of one another.
- inking units with a plurality of ink metering elements which can be set independently of one another, as are known, for example, from DE-PSU-629 331, it is necessary to bring all ink metering elements into a uniform zero position before setting a defined color profile on the ink fountain roller, i.e. in a position in which all ink metering elements are equidistant from the ink fountain roller. Only when this zero position has been reached can the ink layer thicknesses required for a particular print on the individual ink metering elements be set in the correct relationship to one another according to predetermined setting values.
- the invention has for its object to provide a method of the type specified for setting the inking unit of a printing press, which is simple, a fast Setting enables and places lower demands on the operating personnel.
- This object is achieved in that first an ink metering element is brought into a desired zero position and then the ink application on the ink fountain roller is measured in the ink zone covered by this ink metering element, that the ink application on the ink fountain roller is measured in the other ink zones in the same way and the remaining ink metering elements are adjusted until the ink application of all ink zones corresponds to the value measured at the start in the zero position.
- the method according to the invention has the advantage that the ink metering elements of the inking unit of a printing press can be quickly and reliably brought to a uniform zero position without the human eye being involved.
- the correct position of the ink metering elements is determined only after the ink application on the ink fountain roller, adjustment errors are avoided, which can be caused by disruptive operational influences, such as the deflection of the ink fountain roller or its expansion when heated.
- the ink application on the ink fountain roller is measured by means of a light-dark scanning.
- This measurement has the advantage that extremely thin layers of paint can be detected by a few.
- a densitometer is preferably used for light-dark scanning.
- a particularly simple procedure consists in that the ink fountain roller is scanned by zone of ink by means of a measuring device. It can be advantageous if the measuring device is calibrated on a color-free calibration field before measuring the color zones. The measured values determined can then be compared with other measured values. In addition, the zero position can be determined by a measured value and also set using the measuring device.
- the calibration field is preferably formed by an ink-free region of the ink fountain roller.
- a further advantageous embodiment of the invention consists in that the position of the ink metering elements reached in the zero position is measured in relation to the ink fountain and the measured values are stored in a data memory.
- the ink metering elements can then always be brought into the zero position once determined, without the ink application having to be measured again.
- the zero position can be achieved by adjusting the overall arrangement of ink metering element, adjusting and measuring device, consisting e.g. from eccentric and potentiometer.
- the zero position can also be achieved by actuating the actuating device if the characteristic curve contained in the actuating device is taken into account when calculating the new actuating paths. This is necessary if the dosing elements are adjusted according to a non-linear characteristic.
- a preferred measuring device for carrying out the specified method according to the invention consists in that the probe of a densitometer can be moved on a rail at a constant distance along the ink fountain roller, with a possibility for locking the probe in the area of each ink zone.
- the inking unit of a printing press is shown schematically in the drawing.
- the ink application to an ink fountain roller 1 can be adjusted with the aid of ink metering elements 2-10, which are designed as flat slides.
- eccentrically indicated, electrically remote-controllable adjusting devices 11 are provided, which are mounted on the ink fountain (not shown in more detail).
- the ink application to the ink fountain roller is measured with a probe 12 of a densitometer.
- the probe 12 can be moved as desired along the ink fountain roller 1, as indicated by the dotted lines.
- the ink zones assigned to the individual ink metering elements 2-10 on the ink fountain roller 1 are designated 2 'to 10'.
- a color-free calibration surface 13 at the end of the ink fountain roller 1 is provided for the calibration of the densitometer.
- a color metering element for example the color metering element 2 is next turned into one by actuating the adjusting device 11 Positioned in which just a small amount of ink can be seen in the entire ink zone 2 'on the ink fountain roller 1.
- the ink layer should be at least 3-5 ⁇ m to prevent the ink fountain roller from running bright.
- the probe 12 is moved over the ink zone 2 'and the ink density of the ink application set is measured.
- the measured value X displayed by the densitometer in comparison to the calibration value 0, corresponds to the zero position set on the color metering element 2 and thus forms the guide value for setting the other color metering elements 3-10 in the corresponding zero position.
- the probe 12 is next moved into the area of the color zone 3 'and then the color metering element 3 is adjusted via the adjusting device 11 until the measured value X is also displayed by the densitometer.
- the same process is then repeated in the ink zone 4 'with the ink metering element 4 and so on until all ink metering elements are set and the value X is measured in all ink zones.
- the position of the ink metering elements 2-10 or their respective adjusting device is 11 in relation to the ink fountain, however, as a rule differs from ink metering element to ink metering element.
- These different positions of the color metering elements are measured, for example, using potentiometers which are attached to the actuating devices 11 and stored in the data memory of an electronic control system or else on paper tape. With the help of these stored values, the ink metering elements can be automatically moved back to their zero position without the need for a new densitometer measurement.
- the color metering elements can be set according to predetermined values to form a color profile suitable for printing.
- this setting can be made on the basis of the stored values for the position of the ink metering elements in the zero position. These saved values then also form the basis for any necessary readjustments of individual color zones.
- the stored values can also be used when setting new color profiles, so that it is not necessary to measure the slider again.
- a position of the ink metering elements is generally selected as the zero position, in which the ink application to the ink fountain roller 1 reaches a barely permissible minimum dimension.
- the zero position therefore represents the maximum permissible approximation of the ink metering elements to the ink fountain roller.
Abstract
Es wird ein Verfahren zum Einstellen des Farbwerks einer Druckmaschine mit mehreren Farbdosierelementen (2-10), deren Abstände zu einer Farbkastenwalze (1) unabhängig voneinander einstellbar sind, beschrieben, bei dem der Farbauftrag auf die Farbkastenwalze in den einzelnen Farbzonen (2'-10') mittels eines Densitometers (12) zonenweise gemessen wird, wobei die Farbdosierelemente (2-10) nacheinander so weit verstellt werden, bis der gemessene Farbauftrag in allen Farbzonen gleich ist. Als Meßvorrichtung ist ein Densitometer vorgesehen, dessen Tastkopf (12) auf einer Schiene in konstantem Abstand entlang der Farbkastenwalze (1) bewegbar ist.A method for setting the inking unit of a printing press with a plurality of ink metering elements (2-10) whose distances from an ink fountain roller (1) can be set independently of one another is described, in which the ink application to the ink fountain roller in the individual ink zones (2'-10 ') is measured zone by zone using a densitometer (12), the ink metering elements (2-10) being successively adjusted until the measured ink application is the same in all ink zones. A densitometer is provided as the measuring device, the probe (12) of which can be moved on a rail at a constant distance along the ink fountain roller (1).
Description
Die Erfindung betrifft ein Verfahren zum Einstellen des Farbwerks einer Druckmaschine mit mehreren Farbdosierelementen, deren Abstände zu einer Farbkastenwalze unabhängig voneinander einstellbar sind.The invention relates to a method for adjusting the inking unit of a printing press with a plurality of ink metering elements, the distances of which from an ink fountain roller can be set independently of one another.
Bei Farbwerken mit mehreren unabhängig voneinander einstellbaren Farbdosierelementen, wie sie beispielsweise aus der DE-PSU-629 331 bekannt sind, ist es erforderlich vor dem Einstellen eines definierten Farbprofils auf der Farbkastenwalze alle Farbdosierelemente in eine einheitliche Nullstellung zu bringen, d.h. in eine Stellung, in der alle Farbdosierelemente gleichen Abstand zur Farbkastenwalze haben. Erst wenn diese Nullstellung erreicht ist, können die für einen bestimmten Druck benötigten Farbschichtdicken an den einzelnen Farbdosierelementen nach vorgegebenen Einstellwerten im richtigen Verhältnis zueinander eingestellt werden.In inking units with a plurality of ink metering elements which can be set independently of one another, as are known, for example, from DE-PSU-629 331, it is necessary to bring all ink metering elements into a uniform zero position before setting a defined color profile on the ink fountain roller, i.e. in a position in which all ink metering elements are equidistant from the ink fountain roller. Only when this zero position has been reached can the ink layer thicknesses required for a particular print on the individual ink metering elements be set in the correct relationship to one another according to predetermined setting values.
Seither hat man versucht, die von verschiedenen Betriebsparametern, wie Betriebstemperatur, Lagerspiel, mechanische Verformung einzelner Bauteile beeinflußte Nullstellung nacheinander an jedem Farbdosierelement von Hand einzustellen, wobei ein einheitlicher, für die Nullstelung festzulegender Farbauftrag mit dem Auge gefunden werden mußte. Dieses Vorgehen ist jedoch sehr zeitraubend und erfordert viel Erfahrung und Sachkunde von dem Bedienungspersonal.Since then, attempts have been made to manually set the zero position, which is influenced by various operating parameters, such as operating temperature, bearing play, mechanical deformation of individual components, on each color metering element, whereby a uniform color application to be determined for the zero setting had to be found with the eye. However, this procedure is very time consuming and requires a great deal of experience and expertise from the operating personnel.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der angegebenen Art zum Einstellen des Farbwerks einer Druckmaschine zu schaffen, das einfach ist, ein schnelles Einstellen ermöglicht und geringere Anforderungen an das Bedienungspersonal stellt.The invention has for its object to provide a method of the type specified for setting the inking unit of a printing press, which is simple, a fast Setting enables and places lower demands on the operating personnel.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß zunächst ein Farbdosierelement in eine gewünschte Nullstellung gebracht und dann der Farbauftrag auf der Farbkastenwalze in der von diesem Farbdosierelement überstrichenen Farbzone gemessen wird, daß anschließend der Farbauftrag auf der Farbkastenwalze in den übrigen Farbzonen auf gleiche Weise gemessen wird und die übrigen Farbdosierelemente so lange verstellt werden, bis der Farbauftrag aller Farbzonen dem zu Beginn in der Nullstellung gemessenen Wert entspricht. Das erfindungsgemäße Verfahren hat den Vorteil, daß die Farbdosierelemente des Farbwerks einer Druckmaschine schnell und zuverlässig in eine einheitliche Nullstellung gebracht werden können, ohne daß eine Mitwirkung des menschlichen Auges erforderlich ist. Sobald ein Farbdosierelement von Hand in die gewünschte Nullstellung gebracht ist, besteht die Möglichkeit alle weiteren Farbdosierelemente automatisch in eine ebensolche Nullstellung zu bringen. Da bei dem erfindungsgemäßen Einstellverfahren die richtige Position der Farbdosierelemente nur nach dem Farbauftrag auf der Farbkastenwalze bestimmt wird, werden Einstellfehler vermieden, die durch störende Betriebseinflüsse, wie zum Beispiel die Durchbiegung der Farbkastenwalze oder ihre Ausdehnung bei Erwärmung hervorgerufen werden können.This object is achieved in that first an ink metering element is brought into a desired zero position and then the ink application on the ink fountain roller is measured in the ink zone covered by this ink metering element, that the ink application on the ink fountain roller is measured in the other ink zones in the same way and the remaining ink metering elements are adjusted until the ink application of all ink zones corresponds to the value measured at the start in the zero position. The method according to the invention has the advantage that the ink metering elements of the inking unit of a printing press can be quickly and reliably brought to a uniform zero position without the human eye being involved. As soon as a color metering element is manually brought into the desired zero position, it is possible to automatically bring all other color metering elements into the same zero position. Since in the setting method according to the invention the correct position of the ink metering elements is determined only after the ink application on the ink fountain roller, adjustment errors are avoided, which can be caused by disruptive operational influences, such as the deflection of the ink fountain roller or its expansion when heated.
Nach einem weiteren Vorschlag der Erfindung wird der Farbauftrag auf der Farbkastenwalze mittels einer Hell-Dunkel-Abtastung gemessen. Diese Messung hat den Vorteil, daß extrem dünne Farbschichten von wenigen am erfaßt werden können. Vorzugsweise wird zur Hell-Dunkel-Abtastung ein Densitometer verwendet.According to a further proposal of the invention, the ink application on the ink fountain roller is measured by means of a light-dark scanning. This measurement has the advantage that extremely thin layers of paint can be detected by a few. A densitometer is preferably used for light-dark scanning.
Eine besonders einfache Vorgehensweise besteht erfindungsgemäß darin, daß die Farbkastenwalze mittels einer Meßvorrichtung farbzonenweise abgetastet wird. Dabei kann es von Vorteil sein, wenn die Meßvorrichtung vor dem Messen der Farbzonen auf einem farbfreien Eichfeld geeicht wird. Die ermittelten Meßwerte sind dann mit anderen Meßwerten vergleichbar. Außerdem kann hierbei die Nullstellung durch einen Meßwert festgelegt und ebenfalls mit Hilfe der Meßvorrichtung eingestellt werden. Vorzugsweise wird das Eichfeld durch einen farbfreien Bereich der Farbkastenwalze gebildet.According to the invention, a particularly simple procedure consists in that the ink fountain roller is scanned by zone of ink by means of a measuring device. It can be advantageous if the measuring device is calibrated on a color-free calibration field before measuring the color zones. The measured values determined can then be compared with other measured values. In addition, the zero position can be determined by a measured value and also set using the measuring device. The calibration field is preferably formed by an ink-free region of the ink fountain roller.
Eine weitere vorteilhafte Ausgestaltung der Erfindung besteht darin, daß die in der Nullstellung erreichte Position der Farbdosierelemente in Bezug auf den Farbkasten gemessen wird und die Meßwerte in einem Datenspeicher gespeichert werden. Die Farbdosierelemente können dann immer wieder in die einmal ermittelte Nullstellung gebracht werden, ohne daß eine erneute Messung des Farbauftrags erforderlich ist. Die Nullstellung kann erreicht werden durch Verstellung der Gesamtanordnung aus Farbdosierelement, Stell- und Meßvorrichtung, bestehend z.B. aus Exzenter und Potentiometer. Die Nullstellung kann aber auch durch Betätigung der Stellvorrichtung erreicht werden, wenn die in der Stellvorrichtung enthaltene Kennlinie bei der Berechnung der neuen Stellwege berücksichtigt wird. Dies ist notwendig, wenn die Dosierelemente nach einer nicht linearen Kennlinie verstellt werden.A further advantageous embodiment of the invention consists in that the position of the ink metering elements reached in the zero position is measured in relation to the ink fountain and the measured values are stored in a data memory. The ink metering elements can then always be brought into the zero position once determined, without the ink application having to be measured again. The zero position can be achieved by adjusting the overall arrangement of ink metering element, adjusting and measuring device, consisting e.g. from eccentric and potentiometer. However, the zero position can also be achieved by actuating the actuating device if the characteristic curve contained in the actuating device is taken into account when calculating the new actuating paths. This is necessary if the dosing elements are adjusted according to a non-linear characteristic.
Eine bevorzugte Meßvorrichtung zur Durchführung des angegebenen Verfahrens besteht erfindungsgemäß darin, daß der Tastkopf eines Densitometers auf einer Schiene in konstantem Abstand entlang der Farbkastenwalze bewegbar ist, wobei im Bereich jeder Farbzone eine Möglichkeit zur Arretierung des Tastkopfes besteht.A preferred measuring device for carrying out the specified method according to the invention consists in that the probe of a densitometer can be moved on a rail at a constant distance along the ink fountain roller, with a possibility for locking the probe in the area of each ink zone.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels, das anhand einer Zeichnung näher erläutert ist.Further features and advantages of the invention result from the following description of a preferred exemplary embodiment, which is explained in more detail with reference to a drawing.
In der Zeichnung ist das Farbwerk einer Druckmaschine schematisch dargestellt. Der Farbauftrag auf eine Farbkastenwalze 1 kann mit Hilfe von Farbdosierelementen 2-10 eingestellt werden, die als flache Schieber ausgebildet sind.The inking unit of a printing press is shown schematically in the drawing. The ink application to an ink fountain roller 1 can be adjusted with the aid of ink metering elements 2-10, which are designed as flat slides.
Zur Verstellung der Farbdosierelemente 2-10 sind durch Exzenternoggen angedeutete, elektrisch fernsteuerbare Stellvorrichtungen 11 vorgesehen, die an dem nicht näher dargestellten Farbkasten gelagert sind.To adjust the ink metering elements 2-10, eccentrically indicated, electrically remote-controllable adjusting
Der Farbauftrag auf die Farbkastenwalze wird mit einem Tastkopf 12 eines Densitometers gemessen. Der Tastkopf 12 ist entlang der Farbkastenwalze 1, wie durch die punktierten Linien angedeutet, beliebig bewegbar. Die den einzelnen Farbdosierelementen 2-10 zugeordneten Farbzonen auf der Farbkastenwalze 1 sind mit 2' bis 10' bezeichnet. Eine farbfreie Eichfläche 13 am Ende der Farbkastenwalze 1 ist zur Eichung des Densitometers vorgesehen.The ink application to the ink fountain roller is measured with a
Nach dem erfindungsgemäßen Verfahren wird die Einstellung der Farbdosierlemente 2-10 wie folgt vorgenommen:
- Zunächst wird das Densitometer geeicht, indem der
Tastkopf 12 in die gestrichelte Position über derEichfläche 13 gebracht und das Gerät auf den Meßwert 0 eingestellt wird.
- First, the densitometer is calibrated by placing the
probe 12 in the dashed position above thecalibration surface 13 and setting the device to the measured value 0.
Liegen für die Nullstellung der Farbdosierelemente noch keine Einstellwerte vor, so wird als nächstes ein Farbdosierelement, beispielsweise das Farbdosierelement 2 nach dem Auge durch Ansteuerung der Stellvorrichtung 11 in eine Stellung gebracht, in der gerade noch ein geringer Farbauftrag in der gesamten Farbzone 2' auf der Farbkastenwalze 1 erkennbar ist. Die Farbschicht sollte dabei wenigstens 3-5 µm betragen, um ein Blanklaufen der Farbkastenwalze zu vermeiden. Nun wird der Tastkopf 12 über die Farbzone 2' gefahren und die Farbdichte des eingestellten Farbauftrags gemessen. Der vom Densitometer angezeigte Meßwert X, im Vergleich zum Eichwert 0 entspricht der an dem Farbdosierelement 2 eingestellten Nullstellung und bildet somit den Richtwert für das Einstellen der übrigen Farbdosierelemente 3-10 in die entsprechende Nullstellung. Hierzu wird der Tastkopf 12 als nächstes in den Bereich der Farbzone 3' bewegt und dann das Farbdosierelement 3 über die Stellvorrichtung 11 so lange verstellt, bis ebenfalls der Meßwert X vom Densitometer angezeigt wird. Der gleiche Vorgang wird darauf in der Farbzone 4' mit dem Farbdosierelement 4 wiederholt und so fort, bis alle Farbdosierelemente eingestellt sind und in allen Farbzonen der Wert X gemessen ist.If there are no setting values for the zero setting of the color metering elements, a color metering element, for example the
In der nun eingestellten Nullstellung haben zwar alle Farbdosierelemente 2-10 den gleichen Abstand zur Farbkastenwalze 1, infolge der Herstellungstoleranzen der Bauteile des Farbwerks, der Durchbiegung der Farbkastenwalze, der unterschiedlichen Lagerspiele und anderer Einflüsse ist die Position der Farbdosierelemente 2-10 oder ihrer jeweiligen Stellvorrichtung 11 in Bezug auf den Farbkasten in aller Regel aber von Farbdosierelement zu Farbdosierelement unterschiedlich. Diese unterschiedlichen Positionen der Farbdosierelemente werden beispielsweise mit Potentiometern, die an den Stellvorrichtungen 11 angebracht sind, gemessen und im Datenspeicher eines elektronischen Steuersystems oder auch auf Lochstreifen gespeichert. Mit Hilfe dieser gespeicherten Werte können die Farbdosierelemente wieder automatisch in ihre Nullstellung bewegt werden, ohne daß eine erneute Densitometermessung erforderlich ist.In the now set zero position, all ink metering elements 2-10 are at the same distance from the ink fountain roller 1, due to the manufacturing tolerances of the components of the inking unit, the deflection of the ink fountain roller, the different bearing clearances and other influences, the position of the ink metering elements 2-10 or their respective adjusting device is 11 in relation to the ink fountain, however, as a rule differs from ink metering element to ink metering element. These different positions of the color metering elements are measured, for example, using potentiometers which are attached to the actuating
Von ihrer auf die beschriebene Weise eingestellten Nullstellung aus können die Farbdosierelemente nach vorgegebenen Werten zur Bildung eines für einen Druck geeigneten Farbprofils eingestellt werden. Bei elektrisch ferngesteuerten Farbwerken, kann diese Einstellung auf der Grundlage der gespeicherten Werte für die Position der Farbdosierelemente in der Nullstellung erfolgen. Diese gespeicherten Werte bilden dann auch die Basis für evtl. erforderliche Nachjustierungen einzelner Farbzonen. Auch bei der Einstellung neuer Farbprofile kann von den gespeicherten Werten ausgegangen werden, so daß ein erneutes Ausmessen der Nullstellung der Schieber entbehrlich ist.From their zero position set in the manner described, the color metering elements can be set according to predetermined values to form a color profile suitable for printing. In the case of electrically remote-controlled inking units, this setting can be made on the basis of the stored values for the position of the ink metering elements in the zero position. These saved values then also form the basis for any necessary readjustments of individual color zones. The stored values can also be used when setting new color profiles, so that it is not necessary to measure the slider again.
Als Nullstellung wird im allgemeinen eine Stellung der Farbdosierelemente gewählt, in der der Farbauftrag auf die Farbkastenwalze 1 ein gerade noch zulässiges Mindestmaß erreicht. Bei der Einstellung eines Farbprofils stellt die Nullstellung somit die größtzulässige Annäherung der Farbdosierelemente an die Farbkastenwalze dar. Für das beschriebene Verfahren kann es aus meßtechnischen Gründen jedoch auch sinnvoll sein, eine Stellung der Farbdosierelemente zu wählen, in der der Farbauftrag den zulässigen Mindestwert übersteigt, wenn beispielsweise dieser größere Farbauftrag eine genauere Vergleichsmessung zwischen den einzelnen Farbzonen erlaubt. Bei der Einstellung eines Farbprofils müßte dann festgelegt werden, um welchen Betrag die Farbdosierelemente über diese entferntere Nullstellung hinaus an die Farbkastenwalze angenähert werden dürfen.A position of the ink metering elements is generally selected as the zero position, in which the ink application to the ink fountain roller 1 reaches a barely permissible minimum dimension. When setting a color profile, the zero position therefore represents the maximum permissible approximation of the ink metering elements to the ink fountain roller. However, for measurement purposes, it may also be sensible for measuring technology reasons to choose a position of the ink metering elements in which the ink application exceeds the permissible minimum value if for example, this larger color application allows a more accurate comparison measurement between the individual color zones. When setting a color profile, it would then have to be determined by what amount the ink metering elements may be approximated to the ink fountain roller beyond this more distant zero position.
Claims (8)
dadurch gekennzeichnet ,
daß ein Farbdosierelement (2) in eine gewünschte Nullstellung gebracht und der Farbauftrag auf der Farbkastenwalze (1) in der von diesem Farbdosierelement (2) überstrichenen Farbzone (2') gemessen wird, daß der Farbauftrag auf der Farbkastenwalze in den übrigen Farbzonen (3'-10') auf gleiche Weise gemessen wird und die übrigen Farbdosierelemente (3-10) so lange verstellt werden, bis der Farbauftrag in allen Farbzonen dem zu Beginn in der Nullstellung gemessenen Wert entspricht.1. Method for setting the inking unit of a printing press with several ink metering elements, the distances of which from an ink fountain roller can be set independently of one another,
characterized ,
that an ink metering element (2) is brought into a desired zero position and the ink application on the ink fountain roller (1) is measured in the ink zone (2 ') covered by this ink metering element (2), that the ink application on the ink fountain roller in the other ink zones (3' -10 ') is measured in the same way and the other ink metering elements (3-10) are adjusted until the ink application in all ink zones corresponds to the value measured at the start in the zero position.
dadurch gekennzeichnet ,
daß der Farbauftrag auf der Farbkastenwalze (1) mittels einer Hell-Dunkel-Abtastung gemessen wird.2. The method according to claim 1,
characterized ,
that the ink application on the ink fountain roller (1) is measured by means of a light-dark scanning.
dadurch gekennzeichnet ,
daß zur Messung der Hell-Dunkel-Abtastung ein Densitometer (12) verwendet wird.3. The method according to claim 2,
characterized ,
that a densitometer (12) is used to measure the light-dark scanning.
dadurch gekennzeichnet ,
daß die Farbkastenwalze (1) mittels einer Meßvorrichtung (12) farbzonenweise abgetastet wird.4. The method according to any preceding claim,
characterized ,
that the ink fountain roller (1) is scanned in zones of ink by means of a measuring device (12).
dadurch gekennzeichnet ,
daß die Meßvorrichtung (12) vor dem Messen der Farbzone (2'-10') auf einem farbfreien Eichfeld (13) geeicht wird.5. The method according to any preceding claim,
characterized ,
that the measuring device (12) is calibrated on a color-free calibration field (13) before measuring the color zone (2'-10 ').
dadurch gekennzeichnet ,
daß das Eichfeld (13) durch einen farbfreien Bereich der Farbkastenwalze (1) gebildet wird.6. The method according to claim 5,
characterized ,
that the calibration field (13) is formed by an ink-free area of the ink fountain roller (1).
dadurch gekennzeichnet ,
daß die in der Nullstellung erreichte Position der Farbdosierelemente (2-10) in Bezug auf den Farbkasten gemessen wird und die Meßwerte in einem Datenspeicher gespeichert werden.7. The method according to any preceding claim,
characterized ,
that the position of the ink metering elements (2-10) reached in the zero position is measured in relation to the ink fountain and the measured values are stored in a data memory.
dadurch gekennzeichnet ,
daß der Tastkopf (12) eines Densitometers auf einer Schiene in konstantem Abstand entlang der Farbkastenwalze (1) bewegbar ist, wobei im Bereich jeder Farbzone (2'-10') eine Möglichkeit zur Arretierung des Tastkopfes besteht.8. Measuring device for performing the method according to any preceding claim,
characterized ,
that the probe (12) of a densitometer can be moved on a rail at a constant distance along the ink fountain roller (1), with the possibility of locking the probe in the area of each ink zone (2'-10 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT84108725T ATE54102T1 (en) | 1983-08-30 | 1984-07-24 | PROCEDURE FOR ADJUSTING THE INKING OF A PRINTING PRESS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3331208 | 1983-08-30 | ||
| DE3331208A DE3331208A1 (en) | 1983-08-30 | 1983-08-30 | METHOD FOR ADJUSTING THE INK OF A PRINTING MACHINE AND MEASURING DEVICE FOR ITS IMPLEMENTATION |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0135700A2 true EP0135700A2 (en) | 1985-04-03 |
| EP0135700A3 EP0135700A3 (en) | 1987-03-25 |
| EP0135700B1 EP0135700B1 (en) | 1990-06-27 |
Family
ID=6207783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84108725A Expired - Lifetime EP0135700B1 (en) | 1983-08-30 | 1984-07-24 | Method of adjusting the inking unit of a printing machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4570539A (en) |
| EP (1) | EP0135700B1 (en) |
| JP (1) | JPS6072729A (en) |
| AT (1) | ATE54102T1 (en) |
| DE (1) | DE3331208A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0531675A1 (en) * | 1991-09-03 | 1993-03-17 | Heidelberger Druckmaschinen Aktiengesellschaft | Method and device for adjusting ink zone duct keys into their respective positions |
| DE102007054289A1 (en) * | 2007-11-14 | 2009-05-28 | Manroland Ag | Method for operating an inking unit of a printing press |
| WO2010031695A1 (en) * | 2008-09-17 | 2010-03-25 | Manroland Ag | Method for operating a printing machine |
| DE102009058851A1 (en) * | 2009-12-18 | 2011-06-22 | Heidelberger Druckmaschinen AG, 69115 | Method for measuring coating thickness on ductor-roller of printing machine, involves adjusting desired clearance between measuring element and surface, and allowing dependence between clearance and dosing forces during clearance adjustment |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62123929U (en) * | 1986-01-28 | 1987-08-06 | ||
| DE3628464C1 (en) * | 1986-08-21 | 1988-03-10 | Koenig & Bauer Ag | Ink supply in an inking unit of a sheet-fed rotary printing press |
| DE3643720C2 (en) * | 1986-12-20 | 1994-03-10 | Heidelberger Druckmasch Ag | Method for determining control variables for the inking unit of printing machines |
| JPH0796293B2 (en) * | 1986-12-29 | 1995-10-18 | 東芝精機株式会社 | Ink supply amount adjustment device for printing machine |
| IT1211266B (en) * | 1987-08-17 | 1989-10-12 | Grapho Eng Srl | AUTOMATIC ADJUSTMENT CONTINUOUS WATERING SYSTEM FOR OFFSET PRINTING MACHINES |
| DE3914831C3 (en) * | 1989-05-05 | 1999-05-20 | Roland Man Druckmasch | Device for zone-wise setting of a metering gap of an ink metering system of a printing press |
| CA2005045A1 (en) * | 1989-05-08 | 1990-11-08 | Frank L. Shriver | Apparatus and method for decorating cans |
| US5018444A (en) * | 1990-02-28 | 1991-05-28 | Wpc Machinery Corporation | Ink applying system for a printing apparatus |
| US5090315A (en) * | 1991-06-13 | 1992-02-25 | Man Roland Druckmaschinen Ag | Electronically controllable ink fountain roll drive system, and method |
| JP2719110B2 (en) * | 1994-03-04 | 1998-02-25 | 常一 加茂 | Personal data storage device |
| DE19537807C1 (en) * | 1995-10-11 | 1997-02-06 | Roland Man Druckmasch | Method for determining layers |
| AU4171497A (en) * | 1996-09-30 | 1998-04-24 | Accel Graphics Systems, Inc. | Method and apparatus for maintaining ink level in ink fountain of printing press |
| DE19750960C2 (en) * | 1996-11-26 | 2002-08-14 | Roland Man Druckmasch | Film inking unit for a rotary printing machine |
| US5895836A (en) * | 1997-11-06 | 1999-04-20 | Uzik; Barry K. | Greyscale calibration method in digital printing |
| DE19800475A1 (en) * | 1998-01-09 | 1999-07-15 | Koenig & Bauer Ag | Method and device for influencing the color distribution |
| JP4197379B2 (en) * | 1999-09-07 | 2008-12-17 | 株式会社小森コーポレーション | Ink supply amount adjustment method and apparatus for multicolor printing machine |
| DE29916379U1 (en) * | 1999-09-17 | 1999-12-09 | Roland Man Druckmasch | Device for the densitometric measurement of printed products |
| DE10159698B4 (en) * | 2000-12-14 | 2015-03-26 | Heidelberger Druckmaschinen Ag | A method of adjusting an amount of ink supplied to a printing cylinder of a printing press |
| US7102691B2 (en) * | 2001-08-08 | 2006-09-05 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for remote use of personal computer |
| DE102006062980B3 (en) * | 2005-12-12 | 2021-07-29 | Heidelberger Druckmaschinen Intellectual Property Ag & Co. Kg | Detector for the detection of closing points in the paint box |
| US20130186290A1 (en) * | 2012-01-23 | 2013-07-25 | Xerox Corporation | Joint feedforward & feedback control of a keyed inking unit |
| DE102022101244A1 (en) | 2022-01-20 | 2023-07-20 | Koenig & Bauer Ag | Process for calibrating color metering elements |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3353484A (en) * | 1965-06-02 | 1967-11-21 | Vandercook & Sons Inc | Inking system for printing presses |
| US3958509A (en) * | 1974-06-13 | 1976-05-25 | Harris Corporation | Image scan and ink control system |
| GB2000082A (en) * | 1977-06-25 | 1979-01-04 | Roland Offsetmaschf | Apparatus for the control and regulation of the printing process on a printing press |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD93178A (en) * | ||||
| GB1226487A (en) * | 1969-11-14 | 1971-03-31 | ||
| US3746957A (en) * | 1970-09-16 | 1973-07-17 | Polygraph Leipzig | Apparatus for remote control of positioning and drive members for printing machines |
| US3756725A (en) * | 1970-10-12 | 1973-09-04 | Harris Intertype Corp | Measurement and control of ink density |
| JPS4951002A (en) * | 1972-09-19 | 1974-05-17 | ||
| US3835777A (en) * | 1973-01-16 | 1974-09-17 | Harris Intertype Corp | Ink density control system |
| US4151796A (en) * | 1973-04-02 | 1979-05-01 | Heidelberger Druckmaschinen Aktiengesellschaft | Device for automatically controlling deviations in liquid feed in offset presses |
| DE2340300C3 (en) * | 1973-08-09 | 1979-09-13 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach | Ink fountain roller for a lifter inking unit on printing machines |
| US3930447A (en) * | 1974-07-22 | 1976-01-06 | Harris Corporation | Dual purpose display for printing presses |
| US3978788A (en) * | 1975-05-16 | 1976-09-07 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Ink metering assembly for printing press |
| AU2737177A (en) * | 1976-07-29 | 1979-02-01 | Addressograph Multigraph | Ink thickness control and method |
| US4193345A (en) * | 1977-04-01 | 1980-03-18 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Device for adjustment of the ink flow on printing press inking units |
| DE2935489C2 (en) * | 1979-09-03 | 1982-12-09 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Ink knife setting device for printing machines, in particular rotary printing machines |
| 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 |
| DE3136705C1 (en) * | 1981-09-16 | 1982-10-28 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Process for the production of precise prints in printing machines |
-
1983
- 1983-08-30 DE DE3331208A patent/DE3331208A1/en active Granted
-
1984
- 1984-07-24 EP EP84108725A patent/EP0135700B1/en not_active Expired - Lifetime
- 1984-07-24 AT AT84108725T patent/ATE54102T1/en not_active IP Right Cessation
- 1984-08-28 JP JP59177636A patent/JPS6072729A/en active Pending
- 1984-08-30 US US06/646,260 patent/US4570539A/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3353484A (en) * | 1965-06-02 | 1967-11-21 | Vandercook & Sons Inc | Inking system for printing presses |
| US3958509A (en) * | 1974-06-13 | 1976-05-25 | Harris Corporation | Image scan and ink control system |
| GB2000082A (en) * | 1977-06-25 | 1979-01-04 | Roland Offsetmaschf | Apparatus for the control and regulation of the printing process on a printing press |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0531675A1 (en) * | 1991-09-03 | 1993-03-17 | Heidelberger Druckmaschinen Aktiengesellschaft | Method and device for adjusting ink zone duct keys into their respective positions |
| DE102007054289A1 (en) * | 2007-11-14 | 2009-05-28 | Manroland Ag | Method for operating an inking unit of a printing press |
| WO2010031695A1 (en) * | 2008-09-17 | 2010-03-25 | Manroland Ag | Method for operating a printing machine |
| DE102009058851A1 (en) * | 2009-12-18 | 2011-06-22 | Heidelberger Druckmaschinen AG, 69115 | Method for measuring coating thickness on ductor-roller of printing machine, involves adjusting desired clearance between measuring element and surface, and allowing dependence between clearance and dosing forces during clearance adjustment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3331208A1 (en) | 1985-03-14 |
| US4570539A (en) | 1986-02-18 |
| EP0135700B1 (en) | 1990-06-27 |
| ATE54102T1 (en) | 1990-07-15 |
| DE3331208C2 (en) | 1988-02-25 |
| JPS6072729A (en) | 1985-04-24 |
| EP0135700A3 (en) | 1987-03-25 |
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