ROLL FORMING APPARATUS AND METHOD WITH SINGLE ADJUSTER

摘要

A roller die apparatus for supporting pairs of roller dies in predetermined clearances for processing a web workpiece some of the pairs being adjustable for varying th e clearances between the roller dies to accommodate variations in the thicknes s of a web workpiece passing there between, the apparatus having first and second rolle r dies rotatably mounted on respective roller stands the roller dies having at leas t two forming surfaces lying in planes different from one another; means for moving one of the first and second roller dies along an axis diagonal to its axis of rotation, there by achieving adjusting of the die clearance between the first and second roller dies in t wo planes simultaneously. Also disclosed is a method of operating a roller die apparatus, by varying the die clearances along diagonal axes.