EP1916110A2 - Système d'encrage pour une machine d'impression, ainsi que procédé de commande de son fonctionnement - Google Patents

Système d'encrage pour une machine d'impression, ainsi que procédé de commande de son fonctionnement Download PDF

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Publication number
EP1916110A2
EP1916110A2 EP20070019875 EP07019875A EP1916110A2 EP 1916110 A2 EP1916110 A2 EP 1916110A2 EP 20070019875 EP20070019875 EP 20070019875 EP 07019875 A EP07019875 A EP 07019875A EP 1916110 A2 EP1916110 A2 EP 1916110A2
Authority
EP
European Patent Office
Prior art keywords
roller
inking unit
ductor
unit according
lifting
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.)
Withdrawn
Application number
EP20070019875
Other languages
German (de)
English (en)
Inventor
Hans-Bernd Jäger
Markus Reiniger
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 AG
Original Assignee
MAN Roland Druckmaschinen AG
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
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1916110A2 publication Critical patent/EP1916110A2/fr
Withdrawn legal-status Critical Current

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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
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/14—Applications of messenger or other moving transfer rollers

Definitions

  • the invention relates to an inking unit for a printing press, as well as a method for accomplishing the operation of an inking unit per se.
  • the invention has for its object to provide solutions by which there are advantages over previous inking structures with respect to the operation of a lift inking a printing press.
  • an inking unit for a sheet-fed press with a ductor roller, for the removal of ink from an ink fountain, a squeegee, to decrease the ink from the ductor roller, a transfer roller for the acquisition of ink from the squeegee, and a drive means for back and forth forthcoming displacement of the squeegee roller between a first position in which the lifting roller is present at the ductor roller, and a second position in which the lifting roller abuts on the transfer roller, wherein this inking unit is characterized in that a detection device is provided for detecting a with respect to a contact pressure of the lifting roller to the ductor roller or the transfer roller indicative signal.
  • the detection device is designed as a force sensor.
  • This force sensor can be designed in particular as a strain gauge sensor, so that the signals indicative of the contact pressure of the lifting roller to the ductor roller or the transfer roller can be obtained by electronic means.
  • this is preferably incorporated directly into a pivot lever of the inking, which serves as the displacement of the lifting roller.
  • reaction forces can be measured in particular in the region of the engine mount, or can be tapped via a torque sensor from the region of a drive shaft of a crank drive or a camshaft drive.
  • the inking unit is provided with a position detecting device which, as such, serves to provide a signal indicative of the position of the squeegee roller.
  • This position detection device can be designed such that in particular the approach of the lifting roller to the ductor roller as well as the approach to the transfer roller can be detected particularly precisely in the distance range which is decisive for the color transfer. In the intermediate positions, the resolution of the position detection system may be coarser.
  • actuating means are provided by which the contact pressure of the squeegee roller to the ductor roller or the contact pressure of the squeegee roller to the transfer roller to a programmatically determined setpoint or otherwise needs to be adjusted.
  • the corresponding actuating means are preferably designed such that the bringing about of corresponding actuating states can be carried out largely automatically, in particular control station-based.
  • a detection device is incorporated in the inking unit, which as such serves to generate indicative signals with regard to the rotation of the lifting roller.
  • This detection device can be realized in particular by an optical, magnetic, in particular Hall sensor.
  • a sensor device is preferably provided for the rotation of the ductor roller and preferably also for the rotation of the transfer roller, which supplies indicative signals in each case with respect to the rotation of these rollers.
  • the color transfer performance of this roller system can be evaluated and controlled by the control desk.
  • a force sensor is provided, via which the roller pressing of the ink fountain roller to the respective roller partner (ink fountain roller, transfer roller or ink driver) can be detected.
  • These signals can be picked up via the lifter mechanism and, in particular, from the area of an actuator used for driving the ink lifter.
  • position information with respect to the position of the ink fountain roller, as well as the wear of the ink fountain roller dependent stroke travel signals are preferably provided on the said position sensor.
  • the current machine position is passed to a characteristic computer via a position sensor.
  • This characteristic calculator calculates from the signals made available to him and other parameters, such as in particular the printing speed, the Hubertakt, the target duct speed, the target roller pressure on the ink fountain roller, the target roller pressure on the ink driver, the performance of the color lifter drive, the investment time the color lifter on the ink ductor and the investment time of the color lifter on the ink driver, the optimal motion law of the color lifter.
  • the evaluation system calculates the required stroke time and the beginning of the cycle as a function of the machine position. The calculation is preferably carried out already at the start of printing and after a selected number of printed sheets and can be repeated continuously or at sufficiently short time intervals to ensure optimum settings of the inking unit.
  • the inking unit shown in sections in Figure 1 comprises a ductor roller 1, a squeegee roller 2 and a transfer roller 3.
  • the siphon roller 2 is mounted via a squeegee roller displacement device 4 (drive means) such that it is displaceable between a first position I and a second position II.
  • the lifting roller 2 Upon reaching the first position I indicated here, the lifting roller 2 is in contact with the ductor roller 1.
  • the lifting roller 2 Upon reaching position II, the lifting roller 2 is in contact with the transfer roller 3.
  • the provided for the displacement of the transfer roller 3 drive means 4 comprises a drive motor M shown here in simplified form and a crank mechanism for converting the drive movement of the motor M in a pivot lever 6 back and forth shifting force system.
  • the force measuring system S1 is in this embodiment executed as a strain gauge sensor, by means of which, in view of the deformation of a portion of the pivot lever 6 indicative signals can be obtained. These signals are fed to a controller C and can be analyzed by them.
  • the sensor system S2 is designed as a torque sensor, by means of which the drive torque of the motor M, or possibly also other reaction forces occurring in the region of the drive train, can be detected.
  • the contact pressure of the lifting roller 2 to the respective roller partners 1 and 3 can also be calculated from the drive power reference of the motor M.
  • the motor M also represents a system S3 which is suitable for generating the signals indicative of the contact pressure.
  • the signals obtained with respect to the rolling contact pressure by the control device C can be made available to a control center computer LR.
  • This control station computer LR special adjustments of the inking unit can then be made, taking into account further input parameters, by means of which color transfer from the ductor roller 1 to the transfer roller 3, which is advantageous for the momentary operation of the printing press, is guaranteed.
  • the inking unit shown here is further provided with detection devices D1, D2, D3, by means of which indicative signals can be obtained with regard to the rotation and preferably also with regard to the absolute angular position of the respective rollers 1, 2, 3. These signals can also be made available to the computer device C and taken into account when optimizing the inking device setting.
  • a detection device D4 is furthermore provided, by means of which indicative signals can also be obtained with regard to the position of the lifting roller 2 within the travel path thereof. These signals are also used by the control device C to optimize the law of motion.
  • the invention is not limited to the embodiments described above. In particular, it is possible to accomplish the drive of the pivot lever instead of the crank mechanism shown here by other drive systems.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP20070019875 2006-10-26 2007-10-11 Système d'encrage pour une machine d'impression, ainsi que procédé de commande de son fonctionnement Withdrawn EP1916110A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006050494 2006-10-26
DE102007045273A DE102007045273A1 (de) 2006-10-26 2007-09-21 Farbwerk für eine Druckmaschine, sowie Verfahren zur Steuerung des Betriebs desselben

Publications (1)

Publication Number Publication Date
EP1916110A2 true EP1916110A2 (fr) 2008-04-30

Family

ID=39146853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070019875 Withdrawn EP1916110A2 (fr) 2006-10-26 2007-10-11 Système d'encrage pour une machine d'impression, ainsi que procédé de commande de son fonctionnement

Country Status (2)

Country Link
EP (1) EP1916110A2 (fr)
DE (1) DE102007045273A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014056711A1 (fr) * 2012-10-10 2014-04-17 Koenig & Bauer Aktiengesellschaft Mécanismes d'encrage d'un groupe d'impression, groupe d'impression et procédé permettant de faire fonctionner un groupe d'impression
DE102012218423B4 (de) 2012-10-10 2022-02-24 Koenig & Bauer Ag Farbwerk eines Druckwerks, Druckwerk sowie Verfahren zum Betreiben eines Farbwerks

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940532A1 (de) 1998-10-16 2000-04-20 Heidelberger Druckmasch Ag Druckmaschine mit einem Heberfarbwerk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940532A1 (de) 1998-10-16 2000-04-20 Heidelberger Druckmasch Ag Druckmaschine mit einem Heberfarbwerk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014056711A1 (fr) * 2012-10-10 2014-04-17 Koenig & Bauer Aktiengesellschaft Mécanismes d'encrage d'un groupe d'impression, groupe d'impression et procédé permettant de faire fonctionner un groupe d'impression
US9604446B2 (en) 2012-10-10 2017-03-28 Koenig & Bauer Ag Inking unit of a printing unit, printing unit and method for operating a printing unit
DE102012218423B4 (de) 2012-10-10 2022-02-24 Koenig & Bauer Ag Farbwerk eines Druckwerks, Druckwerk sowie Verfahren zum Betreiben eines Farbwerks

Also Published As

Publication number Publication date
DE102007045273A1 (de) 2008-04-30

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