US Patent 7607330 Machine for drawing metal sheets

Machine for drawing metal sheets, which comprises a static support (3) and a moving support (4) that hold a metal sheet (2) during a process of drawing said metal sheet (2), and driving means (5) that cause a longitudinal movement of said moving support (4) in relation to said static support (3) during said process, a section (S) of said metal sheet (2) comprised between said supports (3, 4) being drew and tensioned. Said machine (1) also comprises a third support (6) that remains static during the drawing process and which is disposed between the static support (3) and the moving support (4), and the driving means (5) cooperate with said third support (6) in order to move said moving support (4) longitudinally during said drawing process.