EP0962317A1 - Commande pour un système d'encrage à preneur - Google Patents

Commande pour un système d'encrage à preneur Download PDF

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Publication number
EP0962317A1
EP0962317A1 EP99109470A EP99109470A EP0962317A1 EP 0962317 A1 EP0962317 A1 EP 0962317A1 EP 99109470 A EP99109470 A EP 99109470A EP 99109470 A EP99109470 A EP 99109470A EP 0962317 A1 EP0962317 A1 EP 0962317A1
Authority
EP
European Patent Office
Prior art keywords
control
roller
ink fountain
drive
speed
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.)
Granted
Application number
EP99109470A
Other languages
German (de)
English (en)
Other versions
EP0962317B1 (fr
Inventor
Achim Stöffler
Heinz Dobner
Robert Ortner
Peter Hummel
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 EP0962317A1 publication Critical patent/EP0962317A1/fr
Application granted granted Critical
Publication of EP0962317B1 publication Critical patent/EP0962317B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 a control for a lifter inking unit according to the preamble of claim 1.
  • the jack roller is between the ink fountain roller and the downstream ink roller (friction roller) back and forth movably supported, this movement by a circumferential curve or a pair of cams with a roller running on them is generated.
  • At the investment time is a pair of cam disks that can be rotated relative to each other the lifter roller to the ink fountain roller and / or the first downstream one Ink roller (grater) adjustable.
  • a lifter inking unit for a printing press in which the ink fountain roller is assigned a drive such that the Ink fountain roller with printing speed (machine speed) independent speed can be driven.
  • the drive for the jack roller consists of two cam disks that can be rotated relative to each other, which together from the Printing unit are driven here.
  • the cam disc is a phase gear associated with an actuator that relative the rotation of the cams in relation to one another in accordance with characteristic curves stored in a characteristic curve memory the printing speed. This ensures that the available printing speed required amount of ink of the printing form and thus the substrate is fed.
  • the geometry of the rotatable cams must be such that a speed-dependent tracking of the lifting movement over the entire Speed range of the printing press is possible.
  • the curves must be one have a certain angular range of the disks-taking transition, so that the relative range of rotation of the disks to each other is limited. Is the contour area of the curves with a small radius for the lifting roller to rest determined on the ink fountain roller, this means that at low printing speeds the area with the resulting small radius by corresponding Twisting must be very small. This results in a bottom one Speed and thus the ability to turn the curves.
  • the object of the present invention is therefore to provide a control for a lifter inking unit to expand in accordance with the preamble of claim 1 so that avoiding the disadvantages mentioned above, the area for the speed-dependent tracking of the color quantity can be increased can.
  • the drive of the ink fountain roller assigned control with the control of the speed-dependent tracked lifter roller and the main drive of the printing machine such is in operative connection, so that below a predetermined printing speed instead of rotating the cams to each other (control of the corresponding actuator) reduces the speed of the ink fountain roller becomes.
  • the invention ensures that printing speeds with Corresponding color compensation below that due to the steepness of the characteristic and curve geometry-related minimum speed are possible. This avoids that at a low printing speed, for example too much color in the inking unit when restarting production is promoted and this too much color only over several arches again must be transported out of the inking unit, these sheets then Are waste.
  • One with a paint box 2 and not shown color metering elements interacting ink fountain roller 1 has its own drive in the form a motor 3 together with a drive control 4 arranged upstream of this motor 3 on.
  • a lifter roller 5 is mounted so that it can move back and forth via bearing arms 6.
  • a End of the bearing arms 6 has a rotatable roller 8, which has the force of a Spring 7 in contact with a pair of cam disks 9 which can be rotated relative to one another, 10 is held.
  • the cams 9, 10 are via a phase gear 11 driven by the printing unit, not shown.
  • An actuator 12 is associated with the phase adjustment gear 11, with an known lifter control 13 with a characteristic memory 14 in operative connection stands.
  • One or more characteristic curves are in the characteristic curve memory 14 filed, through which the lifter control 13 and the actuator 12 Phase position of the two cams 9, 10 according to the printing speed will be changed. This ensures that the lifter roller 5 by the those driven by the motor 3 and drive control 4 at a constant speed Ink fountain roller 1 the same amount of ink at all printing speeds decreases and passes on to the inking roller 5.1.
  • the lifter control 13 is used to receive pressure-dependent signals with the main drive 15 of the printing machine, not shown, in operative connection.
  • the drive control 4 of the motor 3 for the ink fountain roller 1, the lifter control 13 for the actuator 12 of the phase adjustment drive 11 of the cams 9, 10 and the main drive 15 of the printing press, not shown are operatively connected to a controller 16 through which the drive controller 4 depending on the printing speed (machine speed) and 13 speed setpoints depending on the control commands of the lifter control can be specified for the motor 3 of the ink fountain roller 1. It is in particular provided that below a predetermined limit speed, underneath which the cams 9, 10 are twisted to shorten them the contact time of the lifter roller 5 with the ink fountain roller is no longer possible, the target speed value for the jack roller 5 via the drive control 4 a predetermined lower value is shut down.
  • the controller 16 receives the main drive 15 of the printing machine, not shown Signals corresponding to machine speed (printing speed).
  • the controller 16 can also be supplied with signals from the lifter control 13, which can be seen that the adjustment range of the cams 9, 10th is exhausted.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Ink Jet (AREA)
EP99109470A 1998-06-04 1999-05-12 Commande pour un système d'encrage à preneur Expired - Lifetime EP0962317B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29809948U 1998-06-04
DE29809948U DE29809948U1 (de) 1998-06-04 1998-06-04 Steuerung für ein Heberfarbwerk

Publications (2)

Publication Number Publication Date
EP0962317A1 true EP0962317A1 (fr) 1999-12-08
EP0962317B1 EP0962317B1 (fr) 2001-12-19

Family

ID=8058047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109470A Expired - Lifetime EP0962317B1 (fr) 1998-06-04 1999-05-12 Commande pour un système d'encrage à preneur

Country Status (3)

Country Link
EP (1) EP0962317B1 (fr)
AT (1) ATE211067T1 (fr)
DE (2) DE29809948U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940532B4 (de) 1998-10-16 2007-02-08 Heidelberger Druckmaschinen Ag Druckmaschine mit einem Heberfarbwerk

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1024211A (en) * 1961-12-05 1966-03-30 Industielle Et Financiere De P Improvements in or relating to printing machines
US3688696A (en) * 1970-05-08 1972-09-05 Harris Intertype Corp Motorized ductor roll
GB2193926A (en) * 1986-07-24 1988-02-24 Ratby Eng Co Ltd Inking system in a printing machine
DE3935215A1 (de) * 1988-10-31 1990-05-03 Polygraph Leipzig Heberfarbwerk fuer schnellaufende rollen-rotationsdruckmaschinen
EP0518234A1 (fr) * 1991-06-13 1992-12-16 MAN Roland Druckmaschinen AG Procédé et méthode d'entraînement à commande électronique des rouleaux d'un encrier
EP0623468A1 (fr) * 1993-05-03 1994-11-09 MAN Roland Druckmaschinen AG Dispositif d'encrage à rouleau preneur et procédé pour régler l'alimentation en encre dans des machines d'impression

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1024211A (en) * 1961-12-05 1966-03-30 Industielle Et Financiere De P Improvements in or relating to printing machines
US3688696A (en) * 1970-05-08 1972-09-05 Harris Intertype Corp Motorized ductor roll
GB2193926A (en) * 1986-07-24 1988-02-24 Ratby Eng Co Ltd Inking system in a printing machine
DE3935215A1 (de) * 1988-10-31 1990-05-03 Polygraph Leipzig Heberfarbwerk fuer schnellaufende rollen-rotationsdruckmaschinen
EP0518234A1 (fr) * 1991-06-13 1992-12-16 MAN Roland Druckmaschinen AG Procédé et méthode d'entraînement à commande électronique des rouleaux d'un encrier
EP0623468A1 (fr) * 1993-05-03 1994-11-09 MAN Roland Druckmaschinen AG Dispositif d'encrage à rouleau preneur et procédé pour régler l'alimentation en encre dans des machines d'impression

Also Published As

Publication number Publication date
DE59900574D1 (de) 2002-01-31
EP0962317B1 (fr) 2001-12-19
DE29809948U1 (de) 1998-08-06
ATE211067T1 (de) 2002-01-15

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