EP 0655331 B1 19970102 - Device for controlling the correct positioning of printing plates on the plate cylinder of a printing machine
Title (en)
Device for controlling the correct positioning of printing plates on the plate cylinder of a printing machine
Title (de)
Vorrichtung zur Kontrolle der registergerechten Anlage von Druckplatten auf dem Plattenzylinder von Druckmaschinen
Title (fr)
Dispositif pour contrÔler le positionnement en registre de plaques sur le cylindre porte-plaque de machines à imprimer
Publication
Application
Priority
DE 4340052 A 19931124
Abstract (en)
[origin: EP0655331A1] The invention relates to a device for monitoring the positioning in correct register of printing plates on the plate cylinder of printing machines, in particular sheet offset printers, the plate cylinder having stops which are electrically connected to an oscillatory circuit in the region of the clamping rail assigned to the start of printing. A known device of this kind is upgraded in detail such that a more precise determination of the positioning in correct register and in particular the location where the printing plate is not in correct register can be determined. For this purpose, it is proposed to assign to each stop a secondary-side oscillatory circuit with a coil which can then be excited in a specific position of the plate cylinder by means of an adjustable primary coil in each case. In particular, the primary coils are suspended from the plate cylinder in a pivotable fashion by means of a lever-like adjustment device.
IPC 1-7
IPC 8 full level
B41F 27/00 (2006.01); B41F 27/12 (2006.01)
CPC (source: EP)
B41F 27/005 (2013.01); B41F 27/1206 (2013.01); B41P 2227/30 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0655331 A1 19950531; EP 0655331 B1 19970102; AT E147012 T1 19970115; DE 4340052 A1 19950608; DE 4340052 C2 19960613; DE 59401467 D1 19970213
DOCDB simple family (application)
EP 94117300 A 19941103; AT 94117300 T 19941103; DE 4340052 A 19931124; DE 59401467 T 19941103