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

FIELD: piercing mills with lateral delivery of mandrel casing out of mill. SUBSTANCE: rear table includes devices for centering mandrel, guide devices for casing, arresting and adjusting mechanism, drive mechanism for extending mandrel from casing, means for discharging casing out of mill. Arresting and adjusting mechanism includes hinged head and rotary lever lock, both mounted in controlled carriage. Front and rear ends of carriage have respective cutout. Mechanism for extending rod is in the form of roller truck with adjusted prism secured to its leading edge and connected with its motion drive unit with possibility of engaging stops of truck with rear end of carriage. EFFECT: improved design providing reduced operation cycle of rear table and reserve for increasing efficiency of piercing mill. 5 dwg