PIERCING MILL REAR TABLE Russian patent published in 2001 - IPC

FIELD: piercing mills with lateral delivery of sleeves. SUBSTANCE: rear table includes mandrel bar, frame with guides, units for centering mandrel bar, guiding devices for sleeve, means for delivering sleeve from piercing mill, arresting-regulating mechanism; unit for extending mandrel bar, bar holder, bar stroke stoppers. Arresting-regulating mechanism includes thrust bearing assembly mounted in guides and having turnings parallel to its axis and leverage lock. In turnings of thrust bearing assembly tie rods are mounted; free ends of tie rods engage with stoppers. Holder of mandrel bar is in the form of open fork-like grip corresponding to groove of stem portion of mandrel bar. EFFECT: reduced time period for changing mandrel bar, lowered size of equipment, enhanced efficiency of piercing mill. 4 dwg