INITIAL SETTING METHOD OF CROSS ROLLING

摘要

PURPOSE:To make the angle of inclination of work rolls zero when positioning pins fit into engaging holes and to simplify the preparatory plan in initial setting by providing the engaging holes and positioning pins on the opposed surfaces of a pair of chocks for work rolls and a pair of chocks for backup rolls. CONSTITUTION:Engaging holes 22 and positioning pins 23 fit freely attachably and detachably into the holes 22 are provided on the respective opposed surfaces of a chock 13 for a work roll and a chock 18 for a backup roll. The position of each hole 22 and pin 23 is determined in the relative position where the angle of inclination of the roll 12 is made exactly zero when the hole 22 and the pin 23 fit tightly to each other. Two pieces each of the holes 22 and the pins 23 are provided on the respective opposed faces of the chocks 13, 18 and at least one set suffices. The accuracy of the initial setting is maintained at all times without being affected by the accuracy of the roll and the surface condition such as deviated wear or the like.