TUBE BENDING PLANT FOR MAKING COILS

摘要

FIELD: plastic metal working, namely production of coils from tube bundle. SUBSTANCE: tube bending plant includes tube bending machines mounted on mutually normal rails for shaping mean portion of coil, tube bending machine for three dimensional bending of end portions of coil, control unit, axial compression mechanism, transporting and accumulating apparatuses. Each tube bending machine is provided with wheeled cars. Tube bending machines for shaping mean portion of coil have builtup adjustable-length tie rod for periodically providing kinematic connection of said machines. Bending heads of said machines are secured to platforms of said wheeled cars adjusted in direction towards lengthwise axis of shaped tube bundle with possibility of bending them by 180 degrees. Tube bending machine for three dimensional bending is in the form of hollow frame with flanges. Rotation axles with rollers are mounted on said flanges by means of roller supports. Hollow spindle with bending member is mounted in cavity of said frame by means of supporting rings. Said bending member is secured to one of said supporting rings. EFFECT: improved design. 9 dwgc