REAR TABLE OF PIERCING MILL Russian patent published in 1999 - IPC

FIELD: piercing mills with lateral delivery. SUBSTANCE: rear table of piercing mill includes housing with guides and additional guides, shafts mounted in opposite sides of housing and having rigidly secured to them double-arm lever and two single-arm levers, mounted in housing roller-type device for centering mandrel, guide devices, arresting and adjusting mechanism. The last includes frame moved along additional guides, arranged in frame thrust bearing assembly with transporting rollers, rotary lever lock, drive unit for moving bearing assembly. There are guides mounted on free ends of single-arm levers with possibility of engaging with rollers of thrust bearing assembly and joining with guides of housing. EFFECT: improved design allowing to increase motion speed of thrust bearing assembly, to decrease cycle duration and to enhance efficiency of piercing mill. 6 dwg