EP 0893256 A3 19990526 - Method and device for controlling the number of revolutions of the cylinders in a printing press

Title (en)

Method and device for controlling the number of revolutions of the cylinders in a printing press

Title (de)

Verfahren und Vorrichtung zur Steuerung der Drehzahl der Zylinder in einer Druckmaschine

Title (fr)

Procédé et dispositif de commande de nombre de tours des cylindres dans une presse à imprimer

Publication

EP 0893256 A3 19990526 (DE)

Application

EP 98105364 A 19980325

Priority

DE 19716943 A 19970422

Abstract (en)

[origin: DE19716943A1] The pressure cylinder (1) of the printing system is fitted with timing marks (2) which are monitored by a sensor (3) linked to the controller (4) which controls the speed of the cylinder and that of the separately driven print cylinders. This enables the print system to be synchronised e.g. to align the separate colours. The control system determines the instantaneous angular displacement of the pressure cylinder and the actual deviation from the programmed angular displacement. From this the control system generates correction signals for the drive signals of for the printing cylinders. The sensor monitors the reflected signals off the markings on the pressure cylinder.

IPC 1-7

B41F 33/00; B41F 13/004; B41F 13/00; B41F 5/24

IPC 8 full level

B41F 33/08 (2006.01); B41F 13/004 (2006.01); B41F 13/14 (2006.01); B41F 13/34 (2006.01); B41F 33/14 (2006.01)

CPC (source: EP KR)

B41F 3/58 (2013.01 - KR); B41F 3/84 (2013.01 - KR); B41F 13/0045 (2013.01 - EP); B41F 13/14 (2013.01 - EP); B41P 2200/12 (2013.01 - EP); B41P 2213/734 (2013.01 - EP); B41P 2213/90 (2013.01 - EP)

Citation (search report)

[Y] DE 19527199 A1 19970130 - BAUMUELLER NUERNBERG GMBH [DE]
[Y] US 4527788 A 19850709 - MASUDA ITSURO [JP]
[Y] US 5615609 A 19970401 - HILL ALAN M [US], et al
[Y] EP 0023299 A1 19810204 - SIEMENS AG [DE]
[A] EP 0495987 A1 19920729 - YASKAWA DENKI SEISAKUSHO KK [JP], et al
[A] DE 4344912 A1 19950706 - WIFAG MASCHF [CH]
[AD] DE 3432572 A1 19850328 - GRACE W R & CO [US]

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

DE 19716943 A1 19981105; BR 9801427 A 19990601; CN 1197005 A 19981028; CZ 77798 A3 19981111; EP 0893256 A2 19990127; EP 0893256 A3 19990526; JP H10296959 A 19981110; KR 19980081528 A 19981125; TW 516509 U 20030101

DOCDB simple family (application)

DE 19716943 A 19970422; BR 9801427 A 19980422; CN 98106393 A 19980422; CZ 77798 A 19980313; EP 98105364 A 19980325; JP 10752698 A 19980417; KR 19980013921 A 19980418; TW 91200540 U 19980324