Patent ID: 6598447
Filing Date: 2003-07-29
Classification: B21D

Abstract:
A machine for bending sections (2) having a longitudinal axis (3) and a constant cross section along the longitudinal axis (3); the machine feeding the sections (2) longitudinally in a first direction (D1), and comprising: a first and a second annular die (11, 12), and an assembly (15) connected to the second annular die (12) and movable in a plane perpendicular to the first direction (D1) to move the second annular die (12) into a number of operating positions with respect to the first annular die (11) to bend the sections (2); and the machine being characterized by comprising a joint (22; 39) connecting the first and the second annular die (11, 12), and which forces the second annular die (12) to assume a given position with respect to the first annular die (11) for each position assumed by said assembly (15); and the machine being characterized by comprising a guide device (5) for guiding said sections (2) along a first axis (10) parallel to said first direction (Dl); said joint (22; 39) imposing that said second annular die (12) only rotate with respect to the first annular die (11) about a point (P) located along said axis (10).