EP 1116582 A1 20010718 - Method and device for driving a printing cylinder
Title (en)
Method and device for driving a printing cylinder
Title (de)
Verfahren und Vorrichtung zum Antrieb eines Druckzylinders
Title (fr)
Procédé et dispositif d'entraînement d'un cylindre d'impression
Publication
Application
Priority
EP 00100610 A 20000113
Abstract (en)
The method involves recording the angular rate and/or the drive torque of the print cylinder over a period of time of at least one complete revolution of the cylinder, deriving a periodic correction signal whose period equals the cylinder rotation period from the recorded signal and driving the motor, which is only associated with the print cylinder, using the correction signal. The method involves recording the angular rate and/or the drive torque of the print cylinder (12) over a period of time of at least one complete revolution of the cylinder, deriving a periodic correction signal (42,44,46) whose period equals the cylinder rotation period from the recorded signal and driving the motor (16), which is only associated with the print cylinder, using the correction signal. The recorded signal is subjected to Fourier analysis and the correction signal is a superimposition of sinusoidal signals whose amplitudes depend on the associated Fourier components. Independent claims are also included for the following: an arrangement for driving a print cylinder.
Abstract (de)
Verfahren zur Steuerung des Antriebs eines Druckzylinders (12) einer Druckmaschine mit Hilfe eines nur diesem Druckzylinder zugeordneten Motors (16), gekennzeichnet durch die folgenden Schritte: Aufzeichnen der Winkelgeschwindigkeit (Ω) und/oder des Antriebsdrehmoments des Druckzylinders (12) über eine Zeitspanne (T) von mindestens einer vollen Druckzylinderumdrehung, Ableiten eines periodischen Korrektursignals (42, 46, 48), dessen Periode gleich der Umdrehungsperiode (T) des Druckzylinders ist, aus dem aufgezeichneten Signal, und Ansteuern des Motors (16) unter Verwendung des Korrektursignals. <IMAGE>
IPC 1-7
IPC 8 full level
B41F 13/004 (2006.01)
CPC (source: EP)
B41F 13/0045 (2013.01); B41P 2213/734 (2013.01)
Citation (search report)
- [X] US 5167002 A 19921124 - FRIDHANDLER ROBERT M [US]
- [X] GB 2329152 A 19990317 - ROLAND MAN DRUCKMASCH [DE]
- [A] GB 2261629 A 19930526 - HEIDELBERGER DRUCKMASCH AG [DE]
- [A] US 5924362 A 19990720 - VOLZ ALBRECHT [DE], et al
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 00100610 A 20000113