Form cylinder provided with flexible printing plates for rotary intaglio printing presses

摘要

A form cylinder for rotary intaglio printing presses comprises first and second half cylindrical parts which are joined together to form a cylinder having diametrically opposite recesses and with each part having a facing side facing the respective other cylinder part with a clamping device recess defined therein. At least one flexible printing plate extends over each cylindrical part and is connected at each end to a profile piece in the form of an angle member which is displaceably positioned in each respective recess. A clamping mechanism in the form of a toggle is provided in the recess of the cylindrical part and it includes a drive member for actuating the toggle to displace the profiled member to effect tensioning of each printing plate both in tangential and radial directions.