Method for tensioning web on print roller has a single adjusting drive with a sprung double ended balance arm for sequential tensioning of the end grips for the web

摘要

A method for tensioning a web on a print roller has the end grips (102, 103) tilt mounted on axes (104, 105) Parallel to the cylinder axis. A single threaded drive (106) set between the grips is fitted with a double ended balance arm (109) whose ends are linked to the two grips. Either by link arms (112, 115) or by profiled ends gripping into sockets in the grips. One end of the balance arm is braced by a spring (118) which ensures a sequential tilt action of the two grips, with the sprung end of the balance arm being depressed after the free end.