Machine for bending pipe and bar sections having a longitudinal axis and a constant transverse section along the axis, comprises first, second and third cylinders accomplishing a rotation around axles having two opposite ends, and a frame

摘要

The machine for bending pipe and bar sections having a longitudinal axis (3) and a constant transverse section along the axis, comprises first, second and third cylinders (5, 6, 7) accomplishing a rotation around first, second and third axles (8, 9, 10) supported at a level of their opposite ends, a frame (4) and two elements are movable with respect to the frame. The cylinders are movable with respect to each other. The first axle is fixed to the frame. The second axle is mounted to the elements to change the distance between the two cylinders and the first cylinder. The machine for bending pipe and bar sections having a longitudinal axis (3) and a constant transverse section along the axis, comprises first, second and third cylinders (5, 6, 7) accomplishing a rotation around first, second and third axles (8, 9, 10) supported at a level of their opposite ends, a frame (4) and two elements are movable with respect to the frame. The cylinders are movable with respect to each other. The first axle is fixed to the frame. The second axle is mounted to the elements to change the distance between the two cylinders and the first cylinder. The third axle is mounted on the other element to vary the distance between the third and the first cylinder. The elements are defined by two respective slides (14, 15). The slides are placed in two respective perpendicular directions sliding with respect to the frame and axles, and moved by an actuator. First, second and third supports are intended to support an end of the first, second and third axles. The axles are fixed on two bearing ends. The first, second and third supports comprise a base (22) fixed to the frame and at the slides, and an annular distal end fixed on bearings. The base and the distal end are located along a displacement axis that forms an acute angle. The first cylinder is located in a zone of the frame defined by the acute angle. The base and the projection of the distal end of the first support are located along the bisection that divides the acute angle.