Global Patent Index - EP 0993947 A1

EP 0993947 A1 2000-04-19 - Method and means for optically measuring the printing position and/or the register deviation between the several colours in a multicolour printing machine

Title (en)

Method and means for optically measuring the printing position and/or the register deviation between the several colours in a multicolour printing machine

Title (de)

Vorrichtung und Verfahren zur optischen Erfassung einer Druckposition und/oder des Registerfehlers zwischen den einzelnen Farben beim Mehrfarbendruck in einer Druckmaschine

Title (fr)

Procédé et dispositif pour mesurer optiquement la position d'impression et/ou la déviation de registre entre les différentes couleurs dans une machine à imprimer en plusieurs couleurs

Publication

EP 0993947 A1 (DE)

Application

EP 99118711 A

Priority

DE 19847666 A

Abstract (en)

The arrangement has optical codes along the longitudinal side of the material strip to be printed, a rotation angle sensor per print cylinder, separate, individual cylinder rotation controllers, an optical sensor per cylinder for continuous optical code detection and an evaluation unit. Each optical sensor has two different operating modes, either for setting up control after inserting a new material strip or for register control during continuous printer operation. An Independent claim is also included a method of controlling a printer to prevent register errors between individual colors.

Abstract (de)

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Steuerung der Druckzylinder (26) einer Druckmaschine, insbesondere zur Einrichtungssteuerung der Druckmaschine und zur Bahnregelung zur Vermeidung von Registerfehlern zwischen den einzelnen Farben beim Mehrfarbendruck, mit einer auf einer Längsseite einer zu bedruckenden Materialbahn (3) aufgebrachten optischen Kodierung, mit jeweils einem jeder einzelnen Druckzylinder (26) zugeordneten Drehwinkelsensor (16), mit jeweils einer Stellvorrichtung (24) zur separaten und unabhängigen Verdrehung jeder einzelnen Druckzylinder (26), mit jeweils einer jeden Druckzylinder (26) zugeordneten und die optische Kodierung kontinuierlich erfassenden, optischen Sensoreinrichtung, und mit einer die Sensorsignale der optischen Sensoreinrichtungen und der Drehwinkelsensoren (16) erfassenden und verarbeitenden Auswerteeinheit (18). Es ist vorgesehen, daß die wenigstens eine jeder Druckzylinder (26) zugeordnete optische Sensoreinrichtung zwei unterschiedliche Betriebsmodi (I, II), entweder zur Einrichtungssteuerung nach Einlegen einer neuen Materialbahn (3) oder zur Registerregelung im laufenden Druckbetrieb, aufweist. <IMAGE>

IPC 1-7 (main, further and additional classification)

B41F 33/00

IPC 8 full level (invention and additional information)

B41F 33/00 (2006.01)

CPC (invention and additional information)

B41F 33/0081 (2013.01); B41P 2233/13 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IT SE

EPO simple patent family

EP 0993947 A1 20000419; EP 0993947 B1 20030416; DE 19847666 A1 20000420; DE 19847666 B4 20051020

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