SHAPE BENDING MILL Russian patent published in 1998 - IPC

FIELD: production of bent rolled bars. SUBSTANCE: pair of working rolls with bearing units are mounted in frame with common housing in the form of two parallel jaws. Rolls are rotated by means of chain drive with reduction gear embracing each pair of adjacent stands. Output shaft of reduction gear is joined with drive end of roll of one pair of working rolls. Vertical guiding rollers are mounted behind each pair of rolls with possibility of motion normal relative to rolling axis. Stand provided with pair of horizontal rolls and pair of vertical rolls is mounted with possibility of rotation around rolling axis. Bearing units at non-driven side of rolls have sleeves with annular extension whose diameter exceeds that of opening of bearing cover. Bearings are mounted on sleeves. Casings of bearing units of upper rolls are rigidly joined with screwdown mechanisms. EFFECT: enhanced efficiency of mill, high quality of bent shapes. 2 cl, 6 dwg