Patent ID: 7032812

Claim:
A punching machine comprising: at least one punching head including a cylindrical body having a first end, a second end, and at least two parallel seats being angularly spaced from one another and extending through said cylindrical body from said first end to said second end; a punch slidably mounted in at least one of said seats; a multiplicity of removable resilient means angularly spaced from one another, each resting on said first end and extending away from said first end; an annular cap member arranged in front and spaced from said first end and designed to abut against said resilient means; a rotor member mounted for rotation on said annular cap member and having an inner face facing said punch; a sliding member projecting from said inner face and arranged to slide onto said punch when said rotor member rotates; and driving means designed to stepwise drive said rotor member, whereby locating said sliding member onto a pre-selected punch, said first end comprising a peripheral shoulder projecting outwardly from said cylindrical body so that said resilient means are located substantially externally of said cylindrical body; and wherein said annular cap member is provided with an outer vertical side guiding and retention wall protruding towards said peripheral shoulder.