EP1820648B1 - Inking system and method for determination of a configuration status of the same - Google Patents

Inking system and method for determination of a configuration status of the same Download PDF

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Publication number
EP1820648B1
EP1820648B1 EP20070002865 EP07002865A EP1820648B1 EP 1820648 B1 EP1820648 B1 EP 1820648B1 EP 20070002865 EP20070002865 EP 20070002865 EP 07002865 A EP07002865 A EP 07002865A EP 1820648 B1 EP1820648 B1 EP 1820648B1
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EP
European Patent Office
Prior art keywords
distributor
rollers
ink
inking
roller
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Revoked
Application number
EP20070002865
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German (de)
French (fr)
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EP1820648A3 (en
EP1820648A2 (en
Inventor
Hans-Bernd Jäger
Jürgen Dipl.-Ing. Schölzig
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Manroland Sheetfed GmbH
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Manroland Sheetfed GmbH
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Publication of EP1820648A3 publication Critical patent/EP1820648A3/en
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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
    • B41F31/15—Devices for moving vibrator-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/004—Driving means for ink rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0027—Devices for scanning originals, printing formes or the like for determining or presetting the ink supply

Definitions

  • the invention relates to an inking unit for an offset rotary printing machine for processing a printing material in the sheet-fed, or in the roll printing process.
  • the invention is also directed to a method for determining a setting state of the inking unit.
  • Coloring units for offset printing machines usually comprise a plurality of rollers serving for color transfer, via which the respective printing ink can be transferred to the printing forme sufficiently uniformly.
  • These inking units can be designed, for example, as multi-roll inking units, or as color inking inking units.
  • the feed of the ink to the first (e.g., ductor) roller of the inking unit can be adjusted via ink knives (or ink slides), the distance of which from the roller is adjustable by means of regulating and zone screws.
  • the dosing gap defined between the inking knife and the roller can be adjusted zonally to different gap dimensions within the format width in order to take into account the possibly different ink consumption in the respective zone. This area-specific color consumption can be determined beforehand on the basis of data for the respective subject.
  • inking units are also typically referred to as "impeller” designated rollers.
  • V erreiber be moved during its rotation about its longitudinal axis in the axial direction and thereby cause a transverse displacement and trituration of the ink in the corresponding nip.
  • DE 101 46 071 A1 discloses an inking unit of a printing press associated with a printing form and comprising a first rubbing roller and a second rubbing roller.
  • the inking unit is characterized in that the first rubbing roller with two inking rollers is simultaneously in rolling contact and that the first rubbing roller oscillates axially more slowly and is arranged closer to the printing form than the second rubbing roller.
  • US 2005/0016399 A1 discloses a drive for a printing unit with an inking unit.
  • the inking unit comprises a first, individual distributor roller, which is arranged directly upstream of the applicator rollers in the ink flow.
  • Another second, individual distributor roller is indirectly arranged upstream in the color flow of the first distributor roller.
  • DE 36 14 555 A1 discloses a method and arrangement for adjusting the point of application of lateral rubbing for a printing press.
  • the areal coverage distribution on a printing plate is used in conjunction with parameters given by the respective printing press which influence the color distribution on the printed sheet for mathematically determining the optimum application time of the lateral trituration.
  • the determination of the computer of a measuring device eg plate scanner
  • which area coverage distribution determined carried out or arranged by a control station of the press computer.
  • the invention has for its object to provide solutions by which it is possible to allow the color transfer from the field of the ink fountain on the printing plate in a respective subject invoice manner and thereby counteract the problem of color drop and the stenciling effect.
  • the inking unit according to the invention can be designed so that the adjustment of the Verreibungsantriebs worn using actuators is fully automatic.
  • the setting of the inking unit according to the invention can take place here without extending the set-up times occurring when changing over the print job.
  • the inking unit is designed such that the phase position of the distributor rollers to each other is continuously variable. It is also possible to meet certain, in particular frequently occurring, subject-specific inking settings by means of specially prepared adjustment points.
  • the phase position of the lifting movement of the at least two distributor rollers relative to each other is preferably adjustable over an angular range of at least ⁇ / 2.
  • the Verreibungsantriebs shark is formed such that the phase angle in an angular range up to 2 ⁇ (360 °) is variable.
  • the Verreibungsantriebs learned invention is designed according to a particular embodiment such that not only the phase position of the lifting movement of the distributor rollers to each other, but in particular the stroke of the respective Verreiberwalze is adjustable changeable per se.
  • it is in particular possible to set the Verreibungshub the (seen in the printing direction) first Verreiberwalze larger than the stroke of the (seen in the printing direction) second Verreiberwalze.
  • Verreibungsantriebs are designed so that the drive of the Verreiberwalzen via a common gear train, in particular a common main eccentric takes place.
  • Verreibungsantriebs it is also possible to design the Verreibungsantriebs announced so that a self-contained drive train is provided for each Verreiberwalze.
  • the Verreibungsantriebs issued in such a way that it is operated synchronously with the machine, wherein the drive power is diverted by mechanical means from the drum or cylinder drive system.
  • it is also possible to equip the Verreibungsantriebs might be designed with an independent, in particular electromechanical and control technology synchronized drive system.
  • the phase position of the axial lifting movement of one (or more) dampening drive roller (s) relative to the axial lifting movement of one of the distributor rollers of the inking unit is preferably adjustable adjustable ,
  • the optimum adjustment of the drive drive device with regard to the color distribution on the respective forme cylinder can take place taking into account numerous image, machine, and color parameters, the cooperative consideration of which is otherwise only conditionally possible.
  • the method according to the invention is determined in the context of determining the setting state for the Verreiberantrieb both the most suitable for the respective Verreiberwalze roller stroke, and according to the invention with respect to the predetermined color distribution most appropriate appearing phase offset between the strokes of at least two Verreiberwalzen.
  • the method according to the invention is preferably carried out as part of an original analysis section preparatory to the printing process, so that the optimum setting states for the respective inking unit are already determined before or at the initiation of the printing job. It is possible, if necessary, to change these setting states within the framework of analysis procedures of the print image which are carried out continuously or at certain intervals. Preferably, the change of the setting state of the Verreiberantriebs fully automatically using actuators from a central control station without interrupting the printing operation.
  • FIG. 1 an inking unit for a sheet-fed offset printing machine is shown.
  • This inking unit comprises an ink fountain 1, a Farbduktor 2, a color lifter 3, a spreading roller 4 and a plurality of complaint rollers 5.
  • the inking unit further comprises a plurality of transfer rollers and ink driver 7a, 7b, 7c, 7d and ultimately on a forme cylinder 9 pending inking rollers or applicator rollers. 8 ,
  • the ink drivers 7a, 7b, 7c, 7d are designed in such a way that they can be displaced in the axial direction by a certain distance, for example in the range of +/- 20 mm, in a machine-synchronous manner via a distributor roller drive device, which is not shown in detail in this illustration.
  • the said distributor roller drive device is designed such that the lifting phase position of at least two ink distributor rollers or distributor rollers, in particular of the ink distributor rollers 7c and 7d, is adjustable relative to one another.
  • the Verreibungsantriebs observed is further designed such that in addition to the Hubphasenlage and the stroke amplitude of the respective Farbreiberwalze 7c, 7d is print job specific adjustable.
  • the inking rollers 7c, 7d are the inking rollers immediately upstream of the inking rollers 8 in the ink flow.
  • the inking rollers 7a and 7b are closer to the ink fountain, as seen in the direction of ink flow.
  • the phase position as well as the stroke of each of the ink-jet rollers 7a, 7b, 7c, 7d shown here can be variably adjusted relative to one another.
  • the upper graph g1 illustrates the axial movement of the distributor roller 7c (FIG. FIG. 1 ) with respect to the rotational phase angle ⁇ of the forme cylinder 9.
  • FIG. 3 is greatly simplified (and essentially only to illustrate a possible realization of the inventive concept), a drive system shown, via which the inking rollers 8 (see FIG. 1 ) upstream distributor rollers 7c, 7d can be driven.
  • the Verreibungsantriebs worn shown here comprises an eccentric structure 10, which as such can either sit directly on a journal of a printing cylinder, in particular the journal of the forme cylinder, or else via a transmission device, in particular a spur gear can be otherwise coupled to the machine drive.
  • the rocker plate 12 is pivotally mounted about a storage device not shown here in such a way that it can be pivoted in accordance with the force exerted by the eccentric lever 11 strokes about the pivot axis X.
  • the rocker plate 12 is provided with an adjusting groove 13, in which a pivot pin 14 can be clamped in a positionally variable manner.
  • a first joint head 15 of a Verreiberst discloseelstange 16.
  • the Verreibst discloseelstange 16 includes a second condyle 17, which sits on a pivot lever 18.
  • a Verreiberwalzenfinger 19 is tilted about the pivot lever axis Y1.
  • the Verreiberfinger 19 is connected via a roller 20 with a cam groove 21 of the distributor roller 7 d in engagement.
  • a kinematically similar gear train is also provided for driving the distributor roller 7c.
  • This gear train also comprises a Verreiberst Schemeelstange 22 which is coupled via a first joint head 23 and a second joint head 24 with the rocker plate 12 and the second pivot lever 25.
  • a Verreiberst Schemeelstange 22 which is coupled via a first joint head 23 and a second joint head 24 with the rocker plate 12 and the second pivot lever 25.
  • the second pivot lever 25 of this rigidly coupled Verreiberfinger 26 is actuated.
  • the second driver finger 26 is engaged with the second driver roller 7c via a second roller 27.
  • the rocker plate 12 is provided in addition to the adjusting groove 13 with further threaded holes 28 .... 32, via which the rod ends 15, 23 of the two Verreibst formulateelstangen 16, 22 can be determined in certain fixed positions, as such certain standard operating conditions Take into account.
  • the Verreiberst Schemeelstangen 16, 22 are formed in this embodiment so that the length is adjustably changed to set the zero stroke position of the Verreiberwalzen.
  • connection structures for connecting the Verreiberst Schemeelstangen 16, 22 to be executed on the rocker plate 12 so that both rod ends 15, 23 can be locked in the adjusting groove 13 position variable. Furthermore, it is also possible to form the rod ends 15, 23 in such a way that they overlap one another can be mounted (eg 23 to 15). It is also possible to provide several parking grooves.
  • Verreibungsantriebs As an alternative to the manually adjustable Verreibungsantriebs worn here in particular for illustrating the inventive concept, it is also possible to form the Verreibungsantriebs worn so that the adjustment of the Axialhubes the respective Verreiberwalze and the Hubphasenlage via actuators, which can be controlled from a central machine control.
  • the inking unit according to the invention is particularly suitable for offset rotary printing machines (sheet / roll) with conventional roller inking (wet or dry offset) according to known construction principles with intermediate rollers, ink drippers, applicator rollers for transferring the ink from the ink fountain (lifter or lifter) to the printing plate in highest print quality, in particular with regard to color drop or template tendency with respect to the different Druckb.
  • the displacement offset can be changed manually or, if appropriate, also automatically, preferably in a range between 0 ° and 180 ° ( ⁇ / 2), but possibly also up to 360 ° ( ⁇ ).
  • the setting state of the inking unit can be determined and set on the basis of a variety of criteria, such as color drop or stenciling.
  • the setting state can preferably be determined under the preceding evaluation of the printing data of the respective printing form.
  • the Verreibungsantrieb can be done with respect to phase angle and stroke via a gear train or via a single drive of the ink driver.
  • the upper color drivers are also adjustable in their phase relationship to each other and preferably also to the lower color driver (for example, in particular with regard to the phase angle of the reversal points and the stroke). It is possible to provide fixed offset angles for these upper color drivers.
  • the adjustment of the entire inking unit is preferably carried out on the basis of the printing data automatically or by control panel selection of the operator.
  • a printing optimization with respect to different Sujets- and customer requirements is possible.
  • a particularly high-quality inking unit can be created, in which special features of the respective printed matter can be particularly taken into account by the filigree setting possibilities of the kinematics of the transfer rollers. It is possible to make the adjustment of the Verreibungsantriebs invention automatically based on the pre-available technical printing data, so that thereby no extension of the setup times of the machine occurs.
  • the color drivers 7c and 7d (close to the inking rollers 8) have a particular influence on the print quality.
  • the ink drivers 7c, 7d are variably adjustable in terms of stroke and phase position and thus are in variierbarer different phase position with the inking rollers 8 in contact. If there is an offset angle of 0 ° between the axial stroke movement of the two ink drivers 7c, 7d (maximum trimming at the same point), then the template inclination is low, but the color drop may be greater than at an offset angle. This can be advantageous in many print jobs. In this setting, during the operation of the printing press, the effect of the trimming insert adjustment on the printing result can be determined, whereby, in the course of the continued printing operation, an optimization with respect to the subject is made possible by laying the trimming insert point (motor or manual).
  • the applicator rollers can be set fixed or iridescent (even partially).
  • the ink drivers 7c, 7d are either mechanically fixed via a gear train or individually controlled drivers are provided, which are rotationally driven in phase relation to the plate cylinder (channel or channelless), e.g. through the machine control.
  • the printing form is known by corresponding data in its form (subject), or corresponding data are entered or set in the work preparation station or at the control station of the machine itself.
  • a manual switching operation between the rubbers 7a, 7b made, offset conversion 0 ° ⁇ 180 ° ⁇ 0 °, depending on the printing optimization or existing printing form.
  • the trimming insert becomes clearly effective in the 0 ° offset position and can be selectedtur optimized.
  • the data from the pre-press allow pre-selection and setting of the trimming insert point.
  • Deposited computational algorithms allow adjustment of the machine with respect to offset offset angle, trimming insert point, offset stroke, automatically with respect to the subject print or printing data, or by scanned print pattern or measured print pattern on the measurement table (eg XY table) and their Optimization in the pressing process and quality assurance process in the production.
  • one or more dampers to the phase position of the plate cylinder (DA or channel) can be controlled.
  • the dampening drive can be driven by the machine or individually controlled.
  • the dampening driver can also be controlled differently (angle-dependent) with regard to its circumferential speed (channel / pressure surface) in order to influence the occurrence of any channel strips.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die Erfindung bezieht sich auf ein Farbwerk für eine Offsetrotationsdruckmaschine zur Verarbeitung eines Bedruckstoffes im Bogendruck-, oder auch im Rollendruckverfahren. Die Erfindung richtet sich weiterhin auch auf ein Verfahren zur Ermittlung eines Einstellzustandes des Farbwerks.The invention relates to an inking unit for an offset rotary printing machine for processing a printing material in the sheet-fed, or in the roll printing process. The invention is also directed to a method for determining a setting state of the inking unit.

Farbwerke für Offsetdruckmaschinen umfassen üblicherweise mehrere, dem Farbtransfer dienende Walzen, über welche die jeweilige Druckfarbe hinreichend vergleichmäßigt auf die Druckform übertragen werden kann. Diese Farbwerke können beispielsweise als Mehrwalzen-Farbwerke, oder auch als Farbspeicherfarbwerke ausgeführt sein. Der Zulauf der Druckfarbe zur ersten (z.B. Duktor-) Walze des Farbwerks, kann über Farbmesser (oder Farbschieber) eingestellt werden, deren Abstand zur Walze über Regulier- und Zonenschrauben veränderbar ist. Der zwischen dem Farbmesser und der Walze definierte Dosierspalt kann innerhalb der Formatbreite zonal auf unterschiedliche Spaltmaße eingestellt werden, um dem ggf. unterschiedlichen Farbverbrauch in der jeweiligen Zone Rechnung zu tragen. Dieser bereichsspezifische Farbverbrauch kann vorab anhand von Daten für das jeweilige Sujet ermittelt werden. In diesen Farbwerken sind typischerweise weiterhin auch als "Verreiber" bezeichnete Walzen vorgesehen. Diese V erreiber werden während ihres Umlaufs um ihre Längsachse auch in axialer Richtung bewegt und bewirken hierbei eine Querverschiebung und Verreibung der Druckfarbe im entsprechenden Walzenspalt.Coloring units for offset printing machines usually comprise a plurality of rollers serving for color transfer, via which the respective printing ink can be transferred to the printing forme sufficiently uniformly. These inking units can be designed, for example, as multi-roll inking units, or as color inking inking units. The feed of the ink to the first (e.g., ductor) roller of the inking unit can be adjusted via ink knives (or ink slides), the distance of which from the roller is adjustable by means of regulating and zone screws. The dosing gap defined between the inking knife and the roller can be adjusted zonally to different gap dimensions within the format width in order to take into account the possibly different ink consumption in the respective zone. This area-specific color consumption can be determined beforehand on the basis of data for the respective subject. In these inking units are also typically referred to as "impeller" designated rollers. These V erreiber be moved during its rotation about its longitudinal axis in the axial direction and thereby cause a transverse displacement and trituration of the ink in the corresponding nip.

Bei den verbreiteten Farbwerken ist der Hub der Verreiberwalzen einstellbar veränderbar. Änderungen können von einem Fachmann mit Blick auf bestimmte Sujets vorgenommen werden, wenn z.B. eine feine Schrift und eine Vollfläche nebeneinander stehen, oder wenn mehrere Farben nebeneinander in einem geteilten Farbkasten geführt werden. In the widespread inking the stroke of the distributor rollers is adjustable adjustable. Changes can be made by a person skilled in the art with regard to certain subjects, for example if a fine font and a full area are next to each other, or if several colors are led side by side in a shared color box.

DE 101 46 071 A1 offenbart ein Farbwerk einer Druckmaschine, das einer Druckform zugeordnet ist sowie eine erste Reibwalze und eine zweite Reibwalze umfasst. Das Farbwerk zeichnet sich dadurch aus, dass die erste Reibwalze mit zwei Farbauftragwalzen gleichzeitig in Abrollkontakt steht und dass die erste Reibwalze langsamer axial schwingt und näher an der Druckform angeordnet ist als die zweite Reibwalze. DE 101 46 071 A1 discloses an inking unit of a printing press associated with a printing form and comprising a first rubbing roller and a second rubbing roller. The inking unit is characterized in that the first rubbing roller with two inking rollers is simultaneously in rolling contact and that the first rubbing roller oscillates axially more slowly and is arranged closer to the printing form than the second rubbing roller.

US 2005/0016399 A1 offenbart einen Antrieb für ein Druckwerk mit einem Farbwerk. Das Farbwerk umfasst eine erste, einzelne Verreiberwalze, welche den Auftragwalzen im Farbfluß unmittelbar vorgeordnet ist. Eine weitere zweite, einzelne Verreiberwalze ist im Farbfluß der ersten Verreiberwalze mittelbar vorgeordnet. US 2005/0016399 A1 discloses a drive for a printing unit with an inking unit. The inking unit comprises a first, individual distributor roller, which is arranged directly upstream of the applicator rollers in the ink flow. Another second, individual distributor roller is indirectly arranged upstream in the color flow of the first distributor roller.

DE 36 14 555 A1 offenbart ein Verfahren und eine Anordnung zur Einstellung des Einsatzpunktes der seitlichen Verreibung für eine Druckmaschine. Bei den Verfahren wird die Flächendeckungsverteilung auf einer Druckplatte in Verbindung mit von der jeweiligen Druckmaschine gegebenen, die Farbverteilung auf dem Druckbogen beeinflussenden Parametern zur rechnerischen Ermittlung des optimalen Einsatzzeitpunktes der seitlichen Verreibung verwendet. Dabei kann die Ermittlung vom Rechner einer Meßeinrichtung (z.B. Plattenscanner), welche Flächendeckungsverteilung ermittelt, erfolgen oder von einem im Steuerstand der Druckmaschine angeordneten Rechner. DE 36 14 555 A1 discloses a method and arrangement for adjusting the point of application of lateral rubbing for a printing press. In the methods, the areal coverage distribution on a printing plate is used in conjunction with parameters given by the respective printing press which influence the color distribution on the printed sheet for mathematically determining the optimum application time of the lateral trituration. In this case, the determination of the computer of a measuring device (eg plate scanner), which area coverage distribution determined, carried out or arranged by a control station of the press computer.

Der Erfindung liegt die Aufgabe zugrunde, Lösungen zu schaffen, durch welche es möglich wird, den Farbtransfer aus dem Bereich des Farbkastens auf die Druckform in einer dem jeweiligen Sujet Rechnung tragenden Weise zu ermöglichen und hierbei dem Problem des Farbabfalls sowie dem Schablonier-Effekt entgegenzutreten.The invention has for its object to provide solutions by which it is possible to allow the color transfer from the field of the ink fountain on the printing plate in a respective subject invoice manner and thereby counteract the problem of color drop and the stenciling effect.

Diese Aufgabe wird erfindungsgemäß gelöst durch ein Farbwerk für eine Offsetdruckmaschine mit allen Merkmalen des Anspruchs 1.This object is achieved by an inking unit for an offset printing machine with all features of claim 1.

Dadurch wird es auf vorteilhafte Weise möglich, ein Farbwerk für eine Offsetdruckmaschine zu schaffen, bei welchem durch Abstimmung der Reibebewegung von wenigstens zwei Farbreiberwalzen des Farbwerks zueinander eine drucktechnische Optimierung bezüglich unterschiedlicher Sujet- und Kundenanforderungen ermöglicht wird. Auf Grundlage des erfindungsgemäßen Konzeptes wird es möglich, ein Farbwerk zu schaffen, bei welchem durch Abstimmung der Verreibungsbewegung der Verreibungswalzen zueinander Probleme hinsichtlich des Farbabfalls, sowie hinsichtlich der Schablonier-Neigung reduziert werden.This makes it possible in an advantageous manner to provide an inking unit for an offset printing machine, in which by tuning the rubbing motion of at least two inking rollers of the inking unit to each other a printing optimization with respect to different Sujet- and customer requirements is possible. On the basis of the concept according to the invention, it becomes possible to provide an inking unit in which by tuning the Verreibungsbewegung the Verreibungswalzen problems are reduced in terms of color waste, as well as with respect to the stenciling tendency.

Das erfindungsgemäße Farbwerk kann so ausgebildet sein, dass die Einstellung der Verreibungsantriebseinrichtung unter Verwendung von Stelltrieben vollautomatisch erfolgt. Die erfindungsgemäße Einstellung des Farbwerks kann hierbei ohne Verlängerung der bei Umstellung des Druckauftrags anfallenden Rüstzeiten erfolgen.The inking unit according to the invention can be designed so that the adjustment of the Verreibungsantriebseinrichtung using actuators is fully automatic. The setting of the inking unit according to the invention can take place here without extending the set-up times occurring when changing over the print job.

Gemäß einer besonders bevorzugten Ausführungsform der Erfindung ist das Farbwerk derart ausgebildet, dass die Phasenlage der Verreiberwalzen zueinander stufenlos veränderbar ist. Es ist auch möglich, bestimmten, insbesondere häufig auftretenden Sujetcharakteristika Rechnung tragende Farbwerkseinstellungen durch hierfür besonders vorbereitete Einstellpunkte zu entsprechen.According to a particularly preferred embodiment of the invention, the inking unit is designed such that the phase position of the distributor rollers to each other is continuously variable. It is also possible to meet certain, in particular frequently occurring, subject-specific inking settings by means of specially prepared adjustment points.

Die Phasenlage der Hubbewegung der wenigstens zwei Verreiberwalzen zueinander ist vorzugsweise einem Winkelbereich von wenigstens π/2 einstellbar. Vorzugsweise ist jedoch die Verreibungsantriebseinrichtung derart ausgebildet, dass die Phasenlage in einem Winkelbereich bis zu 2π (360°) veränderbar ist.The phase position of the lifting movement of the at least two distributor rollers relative to each other is preferably adjustable over an angular range of at least π / 2. Preferably, however, the Verreibungsantriebseinrichtung is formed such that the phase angle in an angular range up to 2π (360 °) is variable.

Die erfindungsgemäße Verreibungsantriebseinrichtung ist gemäß einer besonderen Ausführungsform derart ausgebildet, dass nicht nur die Phasenlage der Hubbewegung der Verreiberwalzen zueinander, sondern insbesondere auch der Hub der jeweiligen Verreiberwalze an sich einstellbar veränderbar ist. So ist es insbesondere möglich, den Verreibungshub der (in Druckrichtung gesehen) ersten Verreiberwalze größer einzustellen, als den Hub der (in Druckrichtung gesehen) zweiten Verreiberwalze.The Verreibungsantriebseinrichtung invention is designed according to a particular embodiment such that not only the phase position of the lifting movement of the distributor rollers to each other, but in particular the stroke of the respective Verreiberwalze is adjustable changeable per se. Thus, it is in particular possible to set the Verreibungshub the (seen in the printing direction) first Verreiberwalze larger than the stroke of the (seen in the printing direction) second Verreiberwalze.

Es ist möglich, die Verreibungsantriebseinrichtung so auszubilden, dass der Antrieb der Verreiberwalzen über einen gemeinsamen Getriebezug, insbesondere einen gemeinsamen Hauptexzenter erfolgt. Alternativ hierzu ist es jedoch auch möglich, die Verreibungsantriebseinrichtung so auszubilden, dass für jede Verreiberwalze ein an sich eigenständiger Antriebsstrang vorgesehen ist. Es ist möglich, die Verreibungsantriebseinrichtung so auszubilden, dass diese maschinensynchron betrieben wird, wobei die Antriebsleistung auf mechanischem Wege aus dem Trommel- oder Zylinderantriebssystem abgezweigt wird. Alternativ hierzu ist es auch möglich, die Verreibungsantriebseinrichtung mit einem eigenständigen, insbesondere elektromechanischen und regelungstechnisch synchronisierten Antriebssystem auszustatten.It is possible to design the Verreibungsantriebseinrichtung so that the drive of the Verreiberwalzen via a common gear train, in particular a common main eccentric takes place. Alternatively, however, it is also possible to design the Verreibungsantriebseinrichtung so that a self-contained drive train is provided for each Verreiberwalze. It is possible, the Verreibungsantriebseinrichtung in such a way that it is operated synchronously with the machine, wherein the drive power is diverted by mechanical means from the drum or cylinder drive system. Alternatively, it is also possible to equip the Verreibungsantriebseinrichtung with an independent, in particular electromechanical and control technology synchronized drive system.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung ist es möglich, dem erfindungsgemäßen Farbwerk ein Feuchtwerk vorzulagern, wobei auch bei diesem Feuchtwerk die Phasenlage der axialen Hubbewegung einer (oder mehrerer) Feuchtreiberwalze(n) gegenüber der axialen Hubbewegung einer der Verreiberwalzen des Farbwerks vorzugsweise einstellbar veränderbar ist.According to a further embodiment of the present invention, it is possible to pre-store the dampening unit according to the invention, wherein also in this dampening unit, the phase position of the axial lifting movement of one (or more) dampening drive roller (s) relative to the axial lifting movement of one of the distributor rollers of the inking unit is preferably adjustable adjustable ,

In verfahrenstechnischer Hinsicht wird die eingangs angegebene Aufgabe auch gelöst durch ein Verfahren gemäß Patentanspruch 9.In procedural terms, the object mentioned above is also achieved by a method according to claim. 9

Dadurch wird es auf vorteilhafte Weise möglich, im Rahmen der Vorbereitung eines Druckjobs eine vorteilhafte Einstellung des Farbwerkes auch hinsichtlich der Hubbewegung der Verreiberwalzen zu ermitteln und anschließend den Druckauftrag mit einer optimierten Verreiberkinematik abzuwicklen.This makes it possible in an advantageous manner, in the context of the preparation of a print job to determine an advantageous setting of the inking unit with respect to the lifting movement of the distributor rollers and then to complete the print job with an optimized Verreiberkinematik.

Der im Hinblick auf die Farbverteilung am jeweiligen Formzylinder optimale Einstellung der Verreibungsantriebseinrichtung kann unter Berücksichtigung zahlreicher Bild-, Maschinen-, und Farbparameter erfolgen, deren zusammenschauende Betrachtung ansonsten nur bedingt möglich ist.The optimum adjustment of the drive drive device with regard to the color distribution on the respective forme cylinder can take place taking into account numerous image, machine, and color parameters, the cooperative consideration of which is otherwise only conditionally possible.

Gemäß einer besonders bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens wird im Rahmen der Festlegung des Einstellzustandes für den Verreiberantrieb sowohl der für die jeweilige Verreiberwalze am geeignetsten erscheinende Walzenhub, sowie erfindungsgemäß ein hinsichtlich der vorgegebenen Farbverteilung am geeignetsten erscheinende Phasenversatz zwischen den Hubbewegungen von wenigstens zwei Verreiberwalzen ermittelt.According to a particularly preferred embodiment of the method according to the invention is determined in the context of determining the setting state for the Verreiberantrieb both the most suitable for the respective Verreiberwalze roller stroke, and according to the invention with respect to the predetermined color distribution most appropriate appearing phase offset between the strokes of at least two Verreiberwalzen.

Es ist möglich, bei der Ermittlung des Einstellzustandes für den Verreiberantrieb auch wirtschaftliche Kriterien, insbesondere hinsichtlich eines möglichst verschleißarmen Betriebes des Farbwerkes auswählbare Prioritäten zu berücksichtigen.It is possible to take into account economic criteria, in particular with regard to a possible low-wear operation of the inking unit selectable priorities in determining the setting state for the Verreiberantrieb.

Vorzugsweise wird das erfindungsgemäße Verfahren im Rahmen eines in den Druckprozess vorbereitenden Vorlagenanalyseabschnittes durchgeführt, sodass bereits vor oder bei Einleitung des Druckjobs die für das jeweilige Farbwerk optimalen Einstellzustände ermittelt sind. Es ist möglich, diese Einstellzustände im Rahmen fortlaufend oder in gewissen Zeitabständen durchgeführter Analyseprozeduren des Druckbildes ggf. zu verändern. Vorzugsweise erfolgt die Änderung des Einstellzustandes des Verreiberantriebs vollautomatisch unter Verwendung von Stelltrieben von einem zentralen Leitstand aus ohne Unterbrechung des Druckbetriebes.The method according to the invention is preferably carried out as part of an original analysis section preparatory to the printing process, so that the optimum setting states for the respective inking unit are already determined before or at the initiation of the printing job. It is possible, if necessary, to change these setting states within the framework of analysis procedures of the print image which are carried out continuously or at certain intervals. Preferably, the change of the setting state of the Verreiberantriebs fully automatically using actuators from a central control station without interrupting the printing operation.

Es ist möglich, die für den jeweiligen Druckjob gewählten Einstellzustände des Verreiberantriebs druckjob-spezifisch zu speichern und im Falle derartiger wiederkehrender Druckjobs erneut zu verwenden.It is possible to store the setting states of the operator drive selected for the respective print job in a print job-specific manner and to reuse them in the case of such recurring print jobs.

Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung in Verbindung mit der Zeichnung. Es zeigt:

Figur 1
eine Schemadarstellung zur Veranschaulichung eines möglichen Aufbaus eines Farbwerkes mit mehreren Verreiberwalzen, wobei die Hubphasenlage von wenigstens zwei Verreiberwalzen dieses Farbwerks zueinander einstellbar veränderbar ist,
Figur 2
eine Schemadarstellung zur Veranschaulichung der unterschiedlichen Hübe und Hubphasenlage der in Figur 1 dargestellten, unteren und den Farbauftragswalzen zugeordneten Farbreiberwalzen;
Figur 3
eine perspektivische Skizze zur Veranschaulichung einer manuell verstellbaren Verreiberwalzenantriebseinrichtung, die als solche eine Einstellung unterschiedlicher Hubphasenlagen der Verreiberwalzen zueinander ermöglicht.
Further details and features of the invention will become apparent from the following description taken in conjunction with the drawings. It shows:
FIG. 1
a schematic representation to illustrate a possible construction of an inking unit with a plurality of distributor rollers, wherein the Hubphasenlage of at least two Verreiberwalzen this inking unit is adjustable to each other adjustable,
FIG. 2
a schematic representation to illustrate the different strokes and Hubphasenlage the in FIG. 1 illustrated, lower and the inking rollers associated Farbreiberwalzen;
FIG. 3
a perspective sketch for illustrating a manually adjustable Verreiberwalzenantriebseinrichtung, as such, allows adjustment of different Hubphasenlagen the distributor rollers to each other.

In Figur 1 ist ein Farbwerk für eine Bogen-Offsetdruckmaschine dargestellt. Dieses Farbwerk umfasst einen Farbkasten 1, einen Farbduktor 2, einen Farbheber 3, eine Aufstreichwalze 4 sowie mehrere Beschwerwalzen 5. Das Farbwerk umfasst weiterhin mehrere Übertragswalzen sowie Farbreiber 7a, 7b, 7c, 7d und letztlich an einem Formzylinder 9 anstehende Farbauftragswalzen bzw. Auftragswalzen 8.In FIG. 1 an inking unit for a sheet-fed offset printing machine is shown. This inking unit comprises an ink fountain 1, a Farbduktor 2, a color lifter 3, a spreading roller 4 and a plurality of complaint rollers 5. The inking unit further comprises a plurality of transfer rollers and ink driver 7a, 7b, 7c, 7d and ultimately on a forme cylinder 9 pending inking rollers or applicator rollers. 8 ,

Die Farbreiber 7a, 7b, 7c, 7d sind derart ausgebildet, dass diese maschinensynchron über eine in dieser Darstellung nicht näher erkennbare Verreiberwalzenantriebseinrichtung in Axialrichtung um eine bestimmte Wegstrecke, beispielsweise im Bereich von +/- 20 mm verlagerbar sind.The ink drivers 7a, 7b, 7c, 7d are designed in such a way that they can be displaced in the axial direction by a certain distance, for example in the range of +/- 20 mm, in a machine-synchronous manner via a distributor roller drive device, which is not shown in detail in this illustration.

Bei dem hier gezeigten Ausführungsbeispiel ist die genannte Verreiberwalzenantriebseinrichtung derart ausgebildet, dass die Hubphasenlage von wenigstens zwei Farbreiberwalzen bzw. Verreiberwalzen, insbesondere der Farbreiberwalzen 7c und 7d zueinander einstellbar veränderbar ist. Vorzugsweise ist die Verreibungsantriebseinrichtung weiterhin derart ausgebildet, dass neben der Hubphasenlage auch die Hubamplitude der jeweiligen Farbreiberwalze 7c, 7d druckjobspezifisch einstellbar ist.In the embodiment shown here, the said distributor roller drive device is designed such that the lifting phase position of at least two ink distributor rollers or distributor rollers, in particular of the ink distributor rollers 7c and 7d, is adjustable relative to one another. Preferably, the Verreibungsantriebseinrichtung is further designed such that in addition to the Hubphasenlage and the stroke amplitude of the respective Farbreiberwalze 7c, 7d is print job specific adjustable.

Bei den Farbreiberwalzen 7c, 7d handelt es sich, wie aus der Darstellung erkennbar, um die im Farbfluss den Farbauftragswalzen 8 unmittelbar vorgelagerten Farbreiberwalzen. Die Farbreiberwalzen 7a und 7b befinden sich in Farbflussrichtung gesehen näher am Farbkasten. Erfindungsgemäß ist die Phasenlage sowie auch der Hub jeder der hier gezeigten Farbreiberwalzen 7a, 7b, 7c, 7d zueinander einstellbar veränderbar.As can be seen from the illustration, the inking rollers 7c, 7d are the inking rollers immediately upstream of the inking rollers 8 in the ink flow. The inking rollers 7a and 7b are closer to the ink fountain, as seen in the direction of ink flow. According to the invention, the phase position as well as the stroke of each of the ink-jet rollers 7a, 7b, 7c, 7d shown here can be variably adjusted relative to one another.

In Figur 2 veranschaulicht der obere Graph g1 die Axialbewegung der Verreiberwalze 7c (Figur 1) in Bezug auf den Drehphasenwinkel ϕ des Formzylinders 9.In FIG. 2 the upper graph g1 illustrates the axial movement of the distributor roller 7c (FIG. FIG. 1 ) with respect to the rotational phase angle φ of the forme cylinder 9.

Der untere Graph g2 veranschaulicht die Drehphasenlage und den Axialhub des Farbreibers 7d gegenüber dem Drehwinkel ϕ des Formzylinders 9. Wie aus der Darstellung ersichtlich, ist es möglich, den Axialhub, sowie die Drehphasenlage der Axialhubbewegung der Farbreiberwalze 7c einstellbar zu verändern.As shown in the illustration, it is possible to adjustably change the axial stroke as well as the rotational phase position of the axial stroke movement of the ink fountain roller 7c.

In Figur 3 ist stark vereinfacht (und im wesentlichen nur zur Veranschaulichung einer möglichen Realisationsform des erfindungsgemäßen Konzeptes) ein Antriebssystem dargestellt, über welches die den Farbauftragswalzen 8 (siehe Figur 1) vorgelagerten Verreiberwalzen 7c, 7d angetrieben werden können. Die hier gezeigte Verreibungsantriebseinrichtung umfasst eine Exzenterstruktur 10, die als solche entweder unmittelbar auf einem Achszapfen eines Druckwerkszylinders, insbesondere dem Achszapfen des Formzylinders sitzen kann, oder auch über eine Getriebeeinrichtung, insbesondere ein Stirnradgetriebe anderweitig an den Maschinenantrieb angekoppelt sein kann.In FIG. 3 is greatly simplified (and essentially only to illustrate a possible realization of the inventive concept), a drive system shown, via which the inking rollers 8 (see FIG. 1 ) upstream distributor rollers 7c, 7d can be driven. The Verreibungsantriebseinrichtung shown here comprises an eccentric structure 10, which as such can either sit directly on a journal of a printing cylinder, in particular the journal of the forme cylinder, or else via a transmission device, in particular a spur gear can be otherwise coupled to the machine drive.

Auf der Exzenterstruktur 10 sitzt eine Kurbelstange 11 die mit ihrem, der Exzenterstruktur 10 abgewandten Ende mit einer Kipphebelplatte 12 gekoppelt ist. Die Kipphebelplatte 12 ist über eine hier nicht näher dargestellte Lagerungseinrichtung derart schwenkbewegbar gelagert, dass diese nach Maßgabe der seitens des Exzenterhebels 11 ausgeübten Hubbewegungen um die Schwenkachse X geschwenkt werden kann. Die Kipphebelplatte 12 ist mit einer Stellnut 13 versehen, in welcher ein Gelenkzapfen 14 in positionsveränderbarer Weise festklemmbar ist.On the eccentric 10 sits a crank rod 11 which is coupled with its, the eccentric 10 remote from the end with a rocker plate 12. The rocker plate 12 is pivotally mounted about a storage device not shown here in such a way that it can be pivoted in accordance with the force exerted by the eccentric lever 11 strokes about the pivot axis X. The rocker plate 12 is provided with an adjusting groove 13, in which a pivot pin 14 can be clamped in a positionally variable manner.

An dem Gelenkzapfen 14 sitzt ein erster Gelenkkopf 15 einer Verreiberstößelstange 16. Die Verreiberstößelstange 16 umfasst einen zweiten Gelenkkopf 17, der auf einem Schwenkhebel 18 sitzt. Nach Maßgabe des Schwenkhebels 18 wird ein Verreiberwalzenfinger 19 um die Schwenkhebelachse Y1 gekippt. Der Verreiberfinger 19 steht über eine Laufrolle 20 mit einer Mitnehmernut 21 der Verreiberwalze 7d in Eingriff.At the pivot pin 14, a first joint head 15 of a Verreiberstößelstange 16. The Verreibstößelstange 16 includes a second condyle 17, which sits on a pivot lever 18. In accordance with the pivot lever 18, a Verreiberwalzenfinger 19 is tilted about the pivot lever axis Y1. The Verreiberfinger 19 is connected via a roller 20 with a cam groove 21 of the distributor roller 7 d in engagement.

Ein kinematisch ähnlicher Getriebezug ist auch für den Antrieb der Verreiberwalze 7c vorgesehen. Dieser Getriebezug umfasst ebenfalls eine Verreiberstößelstange 22, die über einen ersten Gelenkkopf 23 und einen zweiten Gelenkkopf 24 mit der Kipphebelplatte 12 bzw. dem zweiten Schwenkhebel 25 gekoppelt ist. Über den zweiten Schwenkhebel 25 wird der mit diesem starr gekoppelte Verreiberfinger 26 betätigt. Der zweite Verreiberfinger 26 steht über eine zweite Laufrolle 27 mit der zweiten Verreiberwalze 7c in Eingriff. Durch die hier dargestellte Verreibungsantriebseinrichtung wird es möglich, durch Schwenken der Kipphebelplatte 12 eine Axialoszillation der Verreiberwalzen 7c, 7d zu veranlassen, wobei diese Axialoszillation der Verreiberwalzen 7c, 7d sowohl hinsichtlich der Phasenlage als auch hinsichtlich des effektiven Axialhubes einstellbar veränderbar ist.A kinematically similar gear train is also provided for driving the distributor roller 7c. This gear train also comprises a Verreiberstößelstange 22 which is coupled via a first joint head 23 and a second joint head 24 with the rocker plate 12 and the second pivot lever 25. About the second pivot lever 25 of this rigidly coupled Verreiberfinger 26 is actuated. The second driver finger 26 is engaged with the second driver roller 7c via a second roller 27. By the Verreibungsantriebseinrichtung shown here, it is possible by pivoting the rocker arm plate 12 to cause an axial oscillation of the distributor rollers 7c, 7d, this axial oscillation of the distributor rollers 7c, 7d adjustable in terms of both the phase position and in terms of the effective Axialhubes changeable.

Die zugehörigen Hubbewegungen sind durch die in diese Zeichnung eingebundenen Pfeilsymbole angedeutet. Schwenken der Kipphebelplatte 12 in die durch die schwarze Pfeilspitze angedeutete Schwenkrichtung führt zu Bewegungen der übrigen Komponenten in der durch die schwarzen Pfeilspitzen der zugeordneten Pfeile angedeuteten Bewegungsrichtungen. Schwenken der Kipphebelplatte 12 in Richtung der durch die weiße Pfeilspitze angedeuteten Schwenkrichtung führt zu Bewegungen der Komponenten gemäß den durch die weißen Pfeile angedeuteten Bewegungsrichtungen.The associated lifting movements are indicated by the arrow symbols incorporated in this drawing. Pivoting the rocker arm plate 12 in the direction indicated by the black arrowhead pivot direction leads to movements of the other components in the direction indicated by the black arrowheads of the associated arrows directions of movement. Pivoting the rocker plate 12 in the direction indicated by the white arrowhead pivot direction leads to movements of the components according to the direction of movement indicated by the white arrows.

Bei dem hier gezeigten Ausführungsbeispiel ist die Kipphebelplatte 12 zusätzlich zu der Stellnut 13 mit weiteren Gewindebohrungen 28 .... 32 versehen, über welche die Gelenkköpfe 15, 23 der beiden Verreiberstößelstangen 16, 22 in bestimmten Fixpositionen festgelegt werden können, die als solche bestimmten Standardbetriebsbedingungen Rechnung tragen. Die Verreiberstößelstangen 16, 22 sind bei diesem Ausführungsbeispiel so ausgebildet, dass die Länge einstellbar veränderbar ist, um die Nullhubposition der Verreiberwalzen festzulegen.In the embodiment shown here, the rocker plate 12 is provided in addition to the adjusting groove 13 with further threaded holes 28 .... 32, via which the rod ends 15, 23 of the two Verreibstößelstangen 16, 22 can be determined in certain fixed positions, as such certain standard operating conditions Take into account. The Verreiberstößelstangen 16, 22 are formed in this embodiment so that the length is adjustably changed to set the zero stroke position of the Verreiberwalzen.

Es ist möglich, die Anbindungsstrukturen zur Anbindung der Verreiberstößelstangen 16, 22 an der Kipphebelplatte 12 so auszuführen, dass beide Gelenkköpfe 15, 23 in der Stellnut 13 positionsveränderbar arretiert werden können. Weiterhin ist es auch möglich, die Gelenkköpfe 15, 23 so auszubilden, dass diese einander überlappend montiert werden können (z.B. 23 auf 15). Es ist auch möglich, mehrerer Stellnuten vorzusehen.It is possible, the connection structures for connecting the Verreiberstößelstangen 16, 22 to be executed on the rocker plate 12 so that both rod ends 15, 23 can be locked in the adjusting groove 13 position variable. Furthermore, it is also possible to form the rod ends 15, 23 in such a way that they overlap one another can be mounted (eg 23 to 15). It is also possible to provide several parking grooves.

Alternativ zu der hier insbesondere zur Veranschaulichung des erfindungsgemäßen Konzeptes dargestellten, manuell verstellbaren Verreibungsantriebseinrichtung ist es auch möglich, die Verreibungsantriebseinrichtung so auszubilden, dass die Einstellung des Axialhubes der jeweiligen Verreiberwalze sowie der Hubphasenlage über Stelltriebe erfolgt, die von einem zentralen Maschinenleitstand aus ansteuerbar sind.As an alternative to the manually adjustable Verreibungsantriebseinrichtung shown here in particular for illustrating the inventive concept, it is also possible to form the Verreibungsantriebseinrichtung so that the adjustment of the Axialhubes the respective Verreiberwalze and the Hubphasenlage via actuators, which can be controlled from a central machine control.

Auf Grundlage des erfindungsgemäßen Lösungskonzeptes kann ein umstellbarer Verreibungseinsatz für unterschiedliche Sujet-Verreibungsoffsets realisiert werden. Durch die Einstellung der Kinematik der Verreiberwalzen wird es möglich, einen besonderen Einfluss auf den Farbabfall sowie etwaige Schabloniereffekte zu nehmen. Das erfindungsgemäße Farbwerk eignet sich insbesondere für Offset-Rotationsdruckmaschinen (Bogen/Rolle) mit konventionellem Walzenfarbwerk (Nass- oder Trocken- Offset) nach bekannten Bauprinzipien mit Zwischenwalzen, Farbreibern, Auftragswalzen zur Übertragung der Druckfarbe vom Farbkasten (heber- oder heberlos) zur Druckplatte in höchster Druckqualität, insbesondere bezüglich Farbabfall oder Schablonierneigung bezüglich der verschiedenen Drucksujets.On the basis of the solution concept according to the invention, a convertible trituration insert for different subject offset offsets can be realized. By adjusting the kinematics of the distributor rollers, it becomes possible to have a special influence on the color waste as well as any stenciling effects. The inking unit according to the invention is particularly suitable for offset rotary printing machines (sheet / roll) with conventional roller inking (wet or dry offset) according to known construction principles with intermediate rollers, ink drippers, applicator rollers for transferring the ink from the ink fountain (lifter or lifter) to the printing plate in highest print quality, in particular with regard to color drop or template tendency with respect to the different Drucksujets.

Hierzu sind erfindungsgemäß mehrere Farbreiber und Auftragswalzen sowie eine Verreibungseinsatzverstellung bevorzugt vorhanden. Bei dem erfindungsgemäßen Farbwerk ist der V erreibungs-Offset manuell oder gegebenenfalls auch automatisch umstellbar und zwar vorzugsweise in einem Bereich zwischen 0° und 180° (π/2), gegebenenfalls auch aber bis 360° (π).For this purpose, a plurality of ink rollers and application rollers and a Verreibseinsatzverstellung preferably present invention. In the case of the inking unit according to the invention, the displacement offset can be changed manually or, if appropriate, also automatically, preferably in a range between 0 ° and 180 ° (π / 2), but possibly also up to 360 ° (π).

Der Einstellzustand des Farbwerkes kann auf Grundlage unterschiedlichster Kriterien, zum Beispiel Farbabfall oder Schablonieren ermittelt und eingestellt werden. Der Einstellzustand kann vorzugsweise unter vorangehender Auswertung der drucktechnischen Daten der jeweiligen Druckform ermittelt werden.The setting state of the inking unit can be determined and set on the basis of a variety of criteria, such as color drop or stenciling. The setting state can preferably be determined under the preceding evaluation of the printing data of the respective printing form.

Der Verreibungsantrieb kann bezüglich Phasenlage und Hub über einen Getriebezug oder auch über einen Einzelantrieb der Farbreiber erfolgen.The Verreibungsantrieb can be done with respect to phase angle and stroke via a gear train or via a single drive of the ink driver.

Die oberen Farbreiber sind in ihrer Phasenlage zueinander und vorzugsweise auch zum unteren Farbreiber ebenfalls einstellbar (z.B. insbesondere hinsichtlich der Phasenlage der Umkehrpunkte und des Hubes). Es ist möglich, für diese oberen Farbreiber fixe Offsetwinkel vorzusehen.The upper color drivers are also adjustable in their phase relationship to each other and preferably also to the lower color driver (for example, in particular with regard to the phase angle of the reversal points and the stroke). It is possible to provide fixed offset angles for these upper color drivers.

Die Einstellung des gesamten Farbwerkes erfolgt vorzugsweise auf Grundlage der drucktechnischen Daten automatisiert oder per Leitstandsanwahl des Bedieners.The adjustment of the entire inking unit is preferably carried out on the basis of the printing data automatically or by control panel selection of the operator.

Durch das erfindungsgemäße Konzept wird eine drucktechnische Optimierung bezüglich unterschiedlicher Sujets- und Kundenanforderungen möglich. Auf Grundlage des erfindungsgemäßen Konzeptes kann ein besonders hochwertiges Farbwerk geschaffen werden, bei welchem durch die filigranen Einstellmöglichkeiten der Kinematik der Verreibungswalzen zueinander Besonderheiten des jeweiligen Drucksujets besonders Rechnung getragen werden kann. Es ist möglich, die erfindungsgemäße Einstellung des Verreibungsantriebs automatisch auf Grundlage der vorab verfügbaren drucktechnischen Daten vorzunehmen, sodass hierdurch keine Verlängerung der Rüstzeiten der Maschine eintritt.Due to the concept of the invention, a printing optimization with respect to different Sujets- and customer requirements is possible. On the basis of the concept according to the invention, a particularly high-quality inking unit can be created, in which special features of the respective printed matter can be particularly taken into account by the filigree setting possibilities of the kinematics of the transfer rollers. It is possible to make the adjustment of the Verreibungsantriebs invention automatically based on the pre-available technical printing data, so that thereby no extension of the setup times of the machine occurs.

Besonderen Einfluss haben die Farbreiber 7c und 7d (nahe an den Farbauftragswalzen 8) hinsichtlich der Druckqualität. Die Farbreiber 7c, 7d sind hinsichtlich Hub und Phasenlage variabel einstellbar und stehen somit in variierbarer unterschiedlicher Phasenlage mit den Farbauftragswalzen 8 in Kontakt. Besteht zwischen der Axialhubbewegung der beiden Farbreiber 7c, 7d der Offsetwinkel 0° (maximale Verreibung an gleicher Stelle) so ist die Schablonierneigung gering, der Farbabfall unter Umständen jedoch größer als bei einem Offsetwinkel. Dies kann bei zahlreichen Druckaufträgen vorteilhaft sein. In dieser Einstellung lässt sich während des Betriebs der Druckmaschine die Wirkung der Verreibungseinsatzverstellung auf das Druckergebnis feststellen, wodurch im Rahmen des fortgesetzten Druckbetriebes eine Optimierung bezüglich des Sujets durch Verlegung des Verreibungseinsatzpunktes (motorisch oder manuell) ermöglicht wird.The color drivers 7c and 7d (close to the inking rollers 8) have a particular influence on the print quality. The ink drivers 7c, 7d are variably adjustable in terms of stroke and phase position and thus are in variierbarer different phase position with the inking rollers 8 in contact. If there is an offset angle of 0 ° between the axial stroke movement of the two ink drivers 7c, 7d (maximum trimming at the same point), then the template inclination is low, but the color drop may be greater than at an offset angle. This can be advantageous in many print jobs. In this setting, during the operation of the printing press, the effect of the trimming insert adjustment on the printing result can be determined, whereby, in the course of the continued printing operation, an optimization with respect to the subject is made possible by laying the trimming insert point (motor or manual).

Wird der Verreibungsoffset deutlich größer 0 gewählt, z.B. Delta ϕ = ca. 180°, so wird der Farbabfall über dem Bogenumfang deutlich geringer als bei einem Offset von 0°, gleichzeitig ist jedoch auch die Schablonierneigung höher und der einstellbare Verreibungseinsatz wird weniger wirksam, falls dieser verstellt wird. Die Auftragswalzen können dabei fix oder changierend (auch teilweise) eingestellt sein.If the offset offset is chosen to be significantly greater than 0, e.g. Delta φ = about 180 °, the color drop over the arc circumference is significantly lower than at an offset of 0 °, at the same time, however, the template inclination is higher and the adjustable trimming insert is less effective, if this is adjusted. The applicator rollers can be set fixed or iridescent (even partially).

Hierbei sind die Farbreiber 7c, 7d (gegebenenfalls auch der dritte 7b oder vierte 7a) entweder mechanisch über einen Getriebezug fix verbunden oder es sind einzeln gesteuerte Reiber vorgesehen, die in Phasenlage zum Plattenzylinder (Kanal oder kanallos) drehantriebsgesteuert werden, z.B. durch die Maschinensteuerung.In this case, the ink drivers 7c, 7d (possibly also the third 7b or fourth 7a) are either mechanically fixed via a gear train or individually controlled drivers are provided, which are rotationally driven in phase relation to the plate cylinder (channel or channelless), e.g. through the machine control.

Die Druckform ist durch entsprechende Daten in ihrer Form (Sujet) bekannt, oder es werden entsprechende Daten in der Arbeitsvorbereitungsstation oder am Leitstand der Maschine selbst eingegeben oder eingestellt.The printing form is known by corresponding data in its form (subject), or corresponding data are entered or set in the work preparation station or at the control station of the machine itself.

In der einfachsten Ausführung wird ein manueller Umschaltvorgang zwischen den Reibern 7a, 7b vorgenommen, Offset-Umstellung 0° → 180° → 0°, je nach drucktechnischer Optimierung bzw. vorliegender Druckform.In the simplest embodiment, a manual switching operation between the rubbers 7a, 7b made, offset conversion 0 ° → 180 ° → 0 °, depending on the printing optimization or existing printing form.

Der Verreibungseinsatz wird in der O ffsetstellung 0° deutlich wirksam und kann Sujet optimiert gewählt werden. Die Daten aus der Druckvorstufe erlauben eine Vorwahl und Einstellung des Verreibungseinsatzpunktes.The trimming insert becomes clearly effective in the 0 ° offset position and can be selected sujet optimized. The data from the pre-press allow pre-selection and setting of the trimming insert point.

Hinterlegte Rechenalgorithmen (Leitstand, Arbeitsvorbereitungsstationen) erlauben eine Einstellung der Maschine bezüglich Verreibungsoffsetwinkel, Verreibungseinsatzpunkt, Verreibungshub automatisiert bezüglich der vorliegenden Druckform (Sujet) oder der drucktechnischen Daten, oder per eingescanntem Druckmuster bzw. ausgemessenem Druckmuster auf dem Messtisch (z.B. X-Y-Tisch) und deren Optimierung im Andruckprozess und Qualitätssicherungsprozess im Fortdruck.Deposited computational algorithms (control station, work preparation stations) allow adjustment of the machine with respect to offset offset angle, trimming insert point, offset stroke, automatically with respect to the subject print or printing data, or by scanned print pattern or measured print pattern on the measurement table (eg XY table) and their Optimization in the pressing process and quality assurance process in the production.

Diesbezüglich können auch ein oder mehrere Feuchtreiber zur Phasenlage des Plattenzylinders (DA bzw. Kanal) gesteuert werden. Dabei kann der Feuchtreiberantrieb durch die Maschine oder individuell angesteuert erfolgen.In this regard, one or more dampers to the phase position of the plate cylinder (DA or channel) can be controlled. In this case, the dampening drive can be driven by the machine or individually controlled.

Der Feuchtreiber lässt sich auch bezüglich seiner Umfangsgeschwindigkeit unterschiedlich (winkelabhängig) steuern (Kanal/Druckfläche) um Einfluss auf das Auftreten etwaiger Kanalstreifen zu nehmen.The dampening driver can also be controlled differently (angle-dependent) with regard to its circumferential speed (channel / pressure surface) in order to influence the occurrence of any channel strips.

Bei der Realisierung der Verreiberantriebseinrichtung unter Verwendung einer Kipphebelplatte ist es möglich die Anbindungsstelle der Verreiberstößelstange an die Kipphebelplatte so zu wählen, dass ein Totpunkt des Hebelsystems das als solches durch die Verreiberstößelstange und die Kipphebelplatte gebildet wird, durchquert wird, wenn die Kipphebelplatte oszilliert. Hierdurch ergibt sich bei kleiner Hubamplitude eine Verdoppelung der Hubfrequenz der entsprechenden Verreiberwalze. Eine derartige Einstellung eignet sich für den Antrieb der in Figur 1 dargestellten Verreiberwalze 7c.In realizing the driver drive means using a rocker plate, it is possible to select the attachment point of the ram to the rocker plate so that a dead center of the lever system formed as such by the ram push rod and the rocker plate is traversed as the rocker plate oscillates. This results in a smaller Hubamplitude doubling the stroke frequency of the corresponding Verreiberwalze. Such a setting is suitable for driving the in FIG. 1 illustrated Verreiberwalze 7c.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Farbkastenpaintbox
22
Farbduktorink fountain roller
33
Farbhebercolor Heber
44
AufstreichwalzeAufstreichwalze
55
Beschwerwalzerider roll
66
ÜbertragwalzeTransfer roll
7a7a
Farbreiberink distributor
7b7b
Farbreiberink distributor
7c7c
Farbreiberink distributor
7d7d
Farbreiberink distributor
88th
Auftragswalzeapplicator roll
99
Formzylinderform cylinder
1010
Exzenterstruktureccentric structure
1111
ExzenterhebelCam
1212
Kipphebelplatterocker plate
1313
Stellnutadjusting groove
1414
erster Gelenkzapfenfirst pivot pin
1515
erster Gelenkkopffirst condyle
1616
VerreiberstößelstangeVerreiberstößelstange
1717
Gelenkkopfjoint head
1818
Schwenkhebelpivoting lever
1919
VerreiberfingerVerreiberfinger
2020
Laufrollecaster
2121
Mitnehmernutdrive slot
2222
VerreiberstößelstangeVerreiberstößelstange
2323
Gelenkkopfjoint head
2424
Gelenkkopfjoint head
2525
Schwenkhebelpivoting lever
2626
VerreiberfingerVerreiberfinger
2727
Laufrollecaster
28 - 3228 - 32
Fixierstellenfixing points

Claims (13)

  1. An inking couple for an offset printing press having:
    - a plurality of form rollers (8), which are set against a form cylinder (9),
    - a first and a second distributor roller (7c, 7d) each arranged with respect to the ink flow in front of the form rollers (8),
    - further ink rollers (6, 5, 4, 3, 2) arranged in the ink flow in front of the distributor rollers, which as such serve for accomplishing the ink feed from an ink charging region, and
    - a distributor driving device for accomplishing the axial movement of the distributor rollers (7c, 7d)
    wherein the first and the second distributor rollers (7c, 7d) are arranged directly in front of the form rollers (8),
    characterized in that
    the distributor driving device is formed in such a manner that the phase position of the lifting movement of the first distributor roller (7c) can be adjustably varied with respect to the lifting movement of the second distributor roller (7d).
  2. The inking couple according to Claim 1,
    characterized in that
    the phase position is continuously variable.
  3. The inking couple according to Claim 1 or 2,
    characterized in that
    the phase position is variable adjustable in an angle region of at least n/2.
  4. The inking couple according to at least one of the Claims 1 to 3,
    characterized in that
    the position of the reversing points is adjustable.
  5. The inking couple according to at least one of the Claims 1 to 3,
    characterized in that
    the distributor stroke is adjustably variable.
  6. The inking couple according to any one of the Claims 1 to 5,
    characterized in that
    the drive of the distributor rollers (7c, 7d) is affected via a common gear train.
  7. The inking couple according to any one of the Claims 1 to 6,
    characterized in that
    for each distributor roller (7c, 7d) an independent drive train is provided.
  8. The inking couple according to at least one of the Claims 1 to 7,
    characterized in that
    a dampening unit is arranged in front of the inking coupling and in that the phase position of the axial stroke movement of one or a plurality of damp distributor rollers of the dampening unit is adjustably variable with respect to the axial lifting movement of one of the distributor rollers of the inking couple.
  9. A method for determining a state of adjustment of an inking couple for an offset printing press having a plurality of form rollers (8), which are set against a form cylinder (9), a first and a second distributor roller (7c, 7d) in each case arranged in the ink flow directly in front of the form rollers (8), a distributor driving device,
    characterized in that
    with respect to the ink distributor of the image on a printing block that is decisive for the respective inking couple, indicative data are evaluated by means of a processing procedure and/or an inline printing control unit, and on the inking couple adjustments as specified according to the evaluation results are carried out, wherein the process in procedure is configured such that within its scope and adjusting state for the distributor driving device is determined and
    that a phase offset that appears to be most suitable with respect to the ink distributor between the lifting movements of at least two distributor rollers is determined.
  10. The method according to Claim 9,
    characterized in that
    a roller stroke that appears to be most suitable with respect to the ink distributor is determined for the respective distributor roller.
  11. The method according to any one of the Claims 9 to 10,
    characterized in that
    determining the adjustment of the distributor drive takes place subject to selectable priority of the low wear of the distributor rollers.
  12. The method according to any one of the Claims 9 to 11,
    characterized in that
    the adjustment of the distributor drive takes place subject to the use of adjusting drives which can be activated from the control system.
  13. The method according to any one of the Claims 9 to 12,
    characterized in that
    both the adjustment of the distributor drive, as well as the adjusting values of the adjustable, axial changing of the ink form rollers are printing-job-specifically storable and repeatedly accessible.
EP20070002865 2006-02-21 2007-02-10 Inking system and method for determination of a configuration status of the same Revoked EP1820648B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610008002 DE102006008002A1 (en) 2006-02-21 2006-02-21 Inking unit, and method for the sujetspezifischen vote a configuration state of the same

Publications (3)

Publication Number Publication Date
EP1820648A2 EP1820648A2 (en) 2007-08-22
EP1820648A3 EP1820648A3 (en) 2010-11-17
EP1820648B1 true EP1820648B1 (en) 2013-05-01

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Application Number Title Priority Date Filing Date
EP20070002865 Revoked EP1820648B1 (en) 2006-02-21 2007-02-10 Inking system and method for determination of a configuration status of the same

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JP (1) JP2007223317A (en)
DE (1) DE102006008002A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008001848A1 (en) * 2008-05-19 2009-12-03 Koenig & Bauer Aktiengesellschaft Arrangement in a printing unit of a printing press
CN101572772B (en) * 2009-06-09 2010-10-20 天津市电视技术研究所 Lifting type hand-operated rocker arm device for video camera
DE102009027384A1 (en) * 2009-07-01 2011-01-05 Manroland Ag Method for determining preset parameters for an inking unit
DE102009027383A1 (en) * 2009-07-01 2011-01-05 Manroland Ag Methods for determining presetting parameters for inking printing unit of printing machine, involves subdivided printed subject into color zones with defined axial extension
WO2014038425A1 (en) * 2012-09-04 2014-03-13 三菱重工印刷紙工機械株式会社 Printing machine and ink supply method
EP2805825A1 (en) * 2013-05-22 2014-11-26 Crabtree Of Gateshead Limited Liquid transfer apparatus
DE102022128113A1 (en) 2021-12-14 2023-06-15 Heidelberger Druckmaschinen Aktiengesellschaft friction roller control

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Publication number Priority date Publication date Assignee Title
DE3028406C2 (en) * 1980-07-26 1983-09-15 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Device for the axial back and forth movement of distribution rollers in the inking unit of printing machines
JPS58166055A (en) * 1982-03-26 1983-10-01 Mitsubishi Heavy Ind Ltd Ink supply amount setting processor
DE3614555A1 (en) 1986-04-29 1987-11-05 Heidelberger Druckmasch Ag METHOD AND ARRANGEMENTS FOR ADJUSTING THE TIME OF USE OF THE LATERAL DISTRIBUTION FOR PRINTING MACHINES
JPS6445641A (en) * 1987-08-17 1989-02-20 Komori Printing Mach Swing phase regulator for swing roller
JP2969538B2 (en) * 1991-10-23 1999-11-02 株式会社小森コーポレーション Swing roller drive for printing press
JP2571080Y2 (en) * 1992-11-09 1998-05-13 株式会社小森コーポレーション Swing roller drive for inking unit of printing press
DE10146071B4 (en) 2001-01-19 2006-04-06 Heidelberger Druckmaschinen Ag inking
ATE490084T1 (en) 2001-11-08 2010-12-15 Koenig & Bauer Ag DRIVE OF A PRINTING UNIT
DE102005029142B4 (en) 2005-06-23 2008-07-17 Koenig & Bauer Aktiengesellschaft Printing unit and a method for setting the printing unit

Also Published As

Publication number Publication date
DE102006008002A1 (en) 2007-08-23
EP1820648A3 (en) 2010-11-17
EP1820648A2 (en) 2007-08-22
JP2007223317A (en) 2007-09-06

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