Patent ID: 6598450
Filing Date: 2003-07-29
Classification: B21D

Abstract:
A punch assembly for producing a container body by driving a formidable cup through a ring type die means, the punch assembly comprising:a ram having proximal and distal ends; a punch disposed over the distal end of the ram, the punch having an internal surface; a manifold connected to the proximal end of the ram; an annular array of circumferentially spaced fluid inlet tubes in the ram for supplying cooling fluid medium from the manifold toward the distal end of the ram; and a plurality of radial inlet ports from the inlet tubes to the internal surface for supplying the cooling medium to the internal surface of the punch; an annular array of circumferentially spaced fluid outlet tubes in the ram for removing cooling medium; a plurality of radial outlet ports from the internal surface, and spaced from the inlet ports along the length of the ram for transferring cooling medium from the internal surface of the punch to the outlet tubes.