OPTICAL DEVICE FOR ALIGNING ROLLER ENTRY GUIDES IN A ROLLING MILL

摘要

An optical device of the type which may be focused along an observed centerline is employed to accurately align roller entry guides in a rolling mill. The optical device is temporarily mounted at a location separate from and preceding that of the roller entry guide to be aligned, with its observed centerline coinciding with the center of the roll pass into which proudct is to be directed by the guide. By thereafter shifting the focus of the optical device to the guide rollers, the gap defined by the guide rollers can be centered with respect to the observed centerline of the optical device by laterally shifting the entire roller entry guide.