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EP1820648B1 - Dispositif d'encrage et procédé de détermination d'un état de configuration de celui-ci - Google Patents

Dispositif d'encrage et procédé de détermination d'un état de configuration de celui-ci 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
Authority
EP
European Patent Office
Prior art keywords
distributor
rollers
ink
inking
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP20070002865
Other languages
German (de)
English (en)
Other versions
EP1820648A3 (fr
EP1820648A2 (fr
Inventor
Hans-Bernd Jäger
Jürgen Dipl.-Ing. Schölzig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland Sheetfed GmbH
Original Assignee
Manroland Sheetfed GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Manroland Sheetfed GmbH filed Critical Manroland Sheetfed GmbH
Publication of EP1820648A2 publication Critical patent/EP1820648A2/fr
Publication of EP1820648A3 publication Critical patent/EP1820648A3/fr
Application granted granted Critical
Publication of EP1820648B1 publication Critical patent/EP1820648B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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.

Landscapes

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

Claims (13)

  1. Unité d'encrage pour machine d'impression offset, comportant :
    - plusieurs cylindres applicateurs (8) posés sur un cylindre porte-clichés (9),
    - un premier et un second cylindres distributeurs (7c, 7d) installés respectivement en amont des cylindres distributeurs (8) dans le flux d'encre,
    - d'autres cylindres encreurs (6, 5, 4, 3, 2) installés en amont des cylindres distributeurs qui servent en tant que tels à réaliser l'acheminement d'encre depuis une zone d'incorporation d'encre et
    - un dispositif de commande de distribution pour réaliser le mouvement axial des cylindres distributeurs (7c, 7d),
    les premier et second cylindres distributeurs (7c, 7d) étant situés directement en amont des cylindres applicateurs (8),
    caractérisée en ce que
    le dispositif de commande de distribution est réalisé de manière à ce que le phasage du mouvement de levage du premier cylindre distributeur (7c) par rapport au mouvement de levage du second cylindre distributeur (7d) soit variable par réglage.
  2. Unité d'encrage selon la revendication 1,
    caractérisée en ce que
    le phasage est variable progressivement.
  3. Unité d'encrage selon la revendication 1 ou 2,
    caractérisée en ce que
    le phasage est variable par réglage dans une plage d'angle d'au moins n/2.
  4. Unité d'encrage selon au moins une des revendications 1 à 3,
    caractérisée en ce que
    la position des points d'inversion est réglable.
  5. Unité d'encrage selon au moins une des revendications 1 à 3,
    caractérisée en ce que
    la course de distribution est variable par réglage.
  6. Unité d'encrage selon au moins une des revendications 1 à 5,
    caractérisée en ce que
    la commande des cylindres distributeurs (7c, 7d) se fait par un train d'engrenages commun.
  7. Unité d'encrage selon au moins une des revendications 1 à 6,
    caractérisée en ce
    qu'une ligne d'entraînement autonome est prévue pour chaque cylindre distributeur (7c, 7d).
  8. Unité d'encrage selon au moins une des revendications 1 à 7,
    caractérisée en ce
    qu'une unité d'humidification est installée en amont de l'unité d'encrage et que le phasage du mouvement de levage axial d'un ou plusieurs cylindres distributeurs de l'unité d'humidification est variable par réglage par rapport au mouvement de levage axial d'un des cylindres distributeurs de l'unité d'encrage.
  9. Procédé de détermination d'un état de réglage d'une unité d'encrage pour une machine d'impression offset comportant plusieurs cylindres applicateurs (8) qui sont posés sur un cylindre porte-clichés (9), un premier et un second cylindres distributeurs (7c, 7d) installés respectivement directement en amont des cylindres applicateurs (8) dans le flux d'encre d'un dispositif de distribution d'encre,
    caractérisé en ce que,
    en vue de la répartition de l'encre de l'image sur un cliché déterminant pour l'unité d'encrage respective, des données indicatives sont exploitées au moyen d'une procédure de traitement et/ou d'une unité de contrôle d'impression en ligne et des réglages sont effectuées sur l'unité d'encrage en fonction des résultats d'exploitation, la procédure de traitement étant conçue de manière à ce que, dans son cadre, un état de réglage soit déterminé pour le dispositif de commande de distribution et
    qu'un décalage de phase paraissant le plus approprié soit déterminé entre les mouvements de levage d'au moins deux cylindres distributeurs en vue de la répartition de l'encre.
  10. Procédé selon la revendication 9,
    caractérisé en ce
    qu'une course de cylindre paraissant la plus appropriée soit déterminée pour le cylindre distributeur respectif en vue de la répartition de l'encre.
  11. Procédé selon une des revendications 9 à 10,
    caractérisé en ce que
    la détermination du réglage de la commande de distribution se fait avec une priorité sélectionnable de faible usure des cylindres distributeurs.
  12. Procédé selon une des revendications 9 à 11,
    caractérisé en ce que
    le réglage de la commande de distribution se fait en utilisant des commandes de positionnement qui peuvent être commandées depuis un système directeur.
  13. Procédé selon une des revendications 9 à 12,
    caractérisé en ce
    qu'aussi bien le réglage de la commande de distribution que les valeurs de réglage du va et vient axial réglable des cylindres applicateurs d'encre est mémorisable spécifiquement par tâche d'impression et consultable répétitivement.
EP20070002865 2006-02-21 2007-02-10 Dispositif d'encrage et procédé de détermination d'un état de configuration de celui-ci Revoked EP1820648B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610008002 DE102006008002A1 (de) 2006-02-21 2006-02-21 Farbwerk, sowie Verfahren zur sujetspezifischen Abstimmung eines Konfigurationszustandes desselben

Publications (3)

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

Family

ID=38143695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070002865 Revoked EP1820648B1 (fr) 2006-02-21 2007-02-10 Dispositif d'encrage et procédé de détermination d'un état de configuration de celui-ci

Country Status (3)

Country Link
EP (1) EP1820648B1 (fr)
JP (1) JP2007223317A (fr)
DE (1) DE102006008002A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008001848A1 (de) 2008-05-19 2009-12-03 Koenig & Bauer Aktiengesellschaft Anordnung in einem Druckwerk einer Druckmaschine
CN101572772B (zh) * 2009-06-09 2010-10-20 天津市电视技术研究所 用于摄像机的吊装式手动摇臂装置
DE102009027384A1 (de) * 2009-07-01 2011-01-05 Manroland Ag Verfahren zur Bestimmung von Voreinstellparametern für ein Farbwerk
DE102009027383A1 (de) * 2009-07-01 2011-01-05 Manroland Ag Verfahren zur Bestimmung von Voreinstellparametern für ein Farbwerk
JP5800442B2 (ja) * 2012-09-04 2015-10-28 三菱重工印刷紙工機械株式会社 印刷機及びインキ供給方法
EP2805825A1 (fr) * 2013-05-22 2014-11-26 Crabtree Of Gateshead Limited Appareil de transfert de liquides
CN111923596A (zh) * 2020-08-20 2020-11-13 佛山市源达科技有限公司 一种曲面印刷自动串墨装置
DE102022128113A1 (de) 2021-12-14 2023-06-15 Heidelberger Druckmaschinen Aktiengesellschaft Reibwalzensteuerung

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Publication number Priority date Publication date Assignee Title
DE3028406C2 (de) * 1980-07-26 1983-09-15 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zum axialen Hin- und Herbewegen von Reibwalzen im Farbwerk von Druckmaschinen
JPS58166055A (ja) * 1982-03-26 1983-10-01 Mitsubishi Heavy Ind Ltd インキ供給量設定処理装置
DE3614555A1 (de) * 1986-04-29 1987-11-05 Heidelberger Druckmasch Ag Verfahren und anordnungen zur einstellung des einsatzzeitpunktes der seitlichen verreibung fuer druckmaschinen
JPS6445641A (en) * 1987-08-17 1989-02-20 Komori Printing Mach Swing phase regulator for swing roller
JP2969538B2 (ja) * 1991-10-23 1999-11-02 株式会社小森コーポレーション 印刷機の振りローラ駆動装置
JP2571080Y2 (ja) * 1992-11-09 1998-05-13 株式会社小森コーポレーション 印刷機のインキ装置用振りローラ駆動装置
DE10146071B4 (de) * 2001-01-19 2006-04-06 Heidelberger Druckmaschinen Ag Farbwerk
US7086330B2 (en) * 2001-11-08 2006-08-08 Koenig & Bauer Aktiengesellschaft Drive of a printing group
DE102005029142B4 (de) * 2005-06-23 2008-07-17 Koenig & Bauer Aktiengesellschaft Druckeinheit sowie ein Verfahren zur Einstellung der Druckeinheit

Also Published As

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

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