Hollow section cut off means with triangular pointed blade

摘要

This invention relates to an improved cut-off means, and in particular to a cut-off means that simplifies the cutting or severing to length of hollow form members e.g. extrusions or roll form members. In its broadest form, the cut-off means (10) for severing on elongate hollow form member comprises a die (11) having a pair of spaced blades, said hollow form member being supported on the upper surface of said die (11), the upper surface of each blade shaped so that they are contiguous with the lower surface of the hollow form member, a punch (12) having a pointed substantially triangular shaped blade (28), said punch (12) being located between the pair of spaced blades of the die (11), and movement control means for holding said punch (12) above said die (11), controlling the punch (12) such that it moves towards the die (11), and controlling the descent of the punch (12) such that the punch (12) impacts the upper surface of the hollow form member with sufficient force to pierce and cut the upper surface of the hollow form member, and to continue through the die (11) thereby severing the hollow form member.