Patent · US Expired

Method for automatically feeding a printing plate to a plate cylinder in a printing machine

US5634406A · kind A · utility

15Cited by

4References

4Claims

0Family size

Assignee

MAN Roland Druckmaschinen AG · DE

Inventors

Bernd Lindner · Frankfurt, DE
Nikola Pupic · Heusenstamm, DE
Berthold Seib · Rodgau, DE

Key dates

Filing date	Nov 1, 1995
Grant date	Jun 3, 1997
Priority date	—
Expiry date	Nov 1, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S101/36
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for automatically feeding a printing plate in proper registry to a plate cylinder in a printing machine is disclosed. Pursuant to the disclosed method, a printing plate is advanced by a plate conveyor towards a clamping rail on the plate cylinder. After the leading edge is inserted into the clamping rail, the in-register condition of the leading edge of the printing plate is independently sensed at two sensing sites. If the leading edge of the printing plate is in register at only one site, the printing plate is released from the plate conveyor for a period of time to permit the printing plate to align itself. The printing plate is then held again by the plate conveyor and the advancement of the plate is resumed. This process is repeated until the independent sensors both indicate that registry has been achieved.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.