Patent ID: 6227083
Filing Date: 2001-05-08
Classification: B23B,Y10T

Abstract:
A chamfer forming device for a paper roll having a diameter comprising:a forming head having an inner threaded mounting hole configured to receive a rotating head and an annular recessed surface having a diameter the same as that of the paper roll to be machined;a plurality of radial holes disposed equiangularly and passing through a periphery of the forming head and the annular recessed surface;a plurality of threaded holes respectively communicating with said radial holes;a pressing tool respectively mounted within each of said radial holes, said pressing tool each comprised of an end portion, a cutout, a pressing surface, and a contacting end, said pressing tool being adjustable within the associated radial hole such that the contacting end is at a higher level than the annular recessed surface; and,a locking element disposed within each threaded hole such that said pressing tools are locked when adjusted;wherein the paper roll is machined by said pressing facses of said pressing tools to form a chamfer on said paper roll.