EP0962317B1 - Steuerung für ein Heberfarbwerk - Google Patents
Steuerung für ein Heberfarbwerk Download PDFInfo
- Publication number
- EP0962317B1 EP0962317B1 EP99109470A EP99109470A EP0962317B1 EP 0962317 B1 EP0962317 B1 EP 0962317B1 EP 99109470 A EP99109470 A EP 99109470A EP 99109470 A EP99109470 A EP 99109470A EP 0962317 B1 EP0962317 B1 EP 0962317B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control
- roller
- ductor
- ink fountain
- printing
- 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.)
- Expired - Lifetime
Links
Images
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 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.
- a lifter inking unit for a printing press is known from which both the ink fountain roller and jack roller by independently operable drives and upstream controls are operable.
- 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 while 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.
- On 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). Furthermore, the control 16 can 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)
Description
- 1
- Farbkastenwalze
- 2
- Farbkasten
- 3
- Motor (Farbkastenwalze 1)
- 4
- Antriebssteuerung (Farbkastenwalze 1)
- 5
- Heberwalze
- 5.1
- Farbwalze (Reiber)
- 6
- Lagerhebel
- 7
- Feder
- 8
- Rolle
- 9
- Kurvenscheibe
- 10
- Kurvenscheibe
- 11
- Phasenverstellgetriebe
- 12
- Stellantrieb
- 13
- Hebersteuerung
- 14
- Kennlinienspeicher
- 15
- Hauptantrieb (Druckmaschine)
- 16
- Steuerung
Claims (2)
- Steuerung für ein Heberfarbwerk einer Druckmaschine, insbesondere Bogenoffsetdruckmaschine, mit einer Farbkastenwalze (1), einer Heberwalze (5) sowie einer der Heberwalze (5) nachgeordneten Farbwalze (5.1), wobei die Farbkastenwalze (1) über einen Motor (3)mitzugeordneterAntriebssteuerung (4) mit vorgegebenen, von der Druckgeschwindigkeit unabhängigen Drehzahlen antreibbar ist, die Anlage der Heberwalze (5) an die Farbkastenwalze (1) durch einen zugeordneten Antrieb (6, 7, 8, 9, 10, 11, 12) nebst Hebersteuerung (13) nachführbar ist, wobei der Hebersteuerung (13) druckgeschwindigkeitsabhängige Signale zuführbar sind,
dadurch gekennzeichnet, dass eine mit der Hebersteuerung (13) und der Antriebssteuerung (4) der Farbkastenwalze (1) in Signalverbindung stehende Steuerung (16) vorgesehen ist, der druckgeschwindigkeitsabhängige Signale zuführbar sind, dass durch diese Steuerung (16) unterhalb vorgegebener Druckgeschwindigkeiten der Antriebssteuerung (4) der Farbkastenwalze (1) vorgesehene Drehzahlsollwerte zuführbar sind, wobei durch die Hebersteuerung (13) der Steuerung (16) unterhalb eines bestimmten Drehzahlwertes der Druckmaschine ein Signal zuführbar ist, woraufhin durch die Steuerung (16) die Beaufschlagung der Antriebssteuerung (4) der Farbkastenwalze (1) mit einem verringerten Soll-Drehzahlwert erfolgt. - Steuerung nach Anspruch1,
dadurch gekennzeichnet, dass die Steuerung (16) mit dem Hauptantrieb (15) der Druckmaschine in Signalverbindung steht.
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 EP0962317A1 (de) | 1999-12-08 |
EP0962317B1 true EP0962317B1 (de) | 2001-12-19 |
Family
ID=8058047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99109470A Expired - Lifetime EP0962317B1 (de) | 1998-06-04 | 1999-05-12 | Steuerung für ein Heberfarbwerk |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0962317B1 (de) |
AT (1) | ATE211067T1 (de) |
DE (2) | DE29809948U1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19940532B4 (de) | 1998-10-16 | 2007-02-08 | Heidelberger Druckmaschinen Ag | Druckmaschine mit einem Heberfarbwerk |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1315105A (fr) * | 1961-12-05 | 1963-01-18 | Financ De Participation Et De | Perfectionnements apportés aux machines imprimeuses, en particulier aux machines dites |
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 |
DD276455A1 (de) * | 1988-10-31 | 1990-02-28 | Polygraph Leipzig | Heberfarbwerk fuer schnellaufende rollen-rotationsdruckmaschinen |
US5090315A (en) * | 1991-06-13 | 1992-02-25 | Man Roland Druckmaschinen Ag | Electronically controllable ink fountain roll drive system, and method |
EP0623468B1 (de) * | 1993-05-03 | 1997-03-19 | MAN Roland Druckmaschinen AG | Heberfarbwerk und Verfahren zur Farbmengeneinstellung von Druckmaschinen |
-
1998
- 1998-06-04 DE DE29809948U patent/DE29809948U1/de not_active Expired - Lifetime
-
1999
- 1999-05-12 EP EP99109470A patent/EP0962317B1/de not_active Expired - Lifetime
- 1999-05-12 DE DE59900574T patent/DE59900574D1/de not_active Expired - Lifetime
- 1999-05-12 AT AT99109470T patent/ATE211067T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE59900574D1 (de) | 2002-01-31 |
EP0962317A1 (de) | 1999-12-08 |
ATE211067T1 (de) | 2002-01-15 |
DE29809948U1 (de) | 1998-08-06 |
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