ROLLER MACHINE FOR SHEET-BENDING Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: machine has driven forming roller 1 with flexible cover and bending mandrel, that has rollers 5, mounted in pits of central support 3, and movable supports 4, located symmetrically relatively central support 3. Supports 4 have drive of vertical motion. Central support 3 is mounted on movable traverse 2. EFFECT: machine provides bending of pieces with variable curvature without mandrel change. 3 dwg