Patent ID: 6244148
Filing Date: 2001-06-12
Classification: B26D,B26F,Y10T

Abstract:
A cutting device comprising:a machine frame;an anvil drum mounted on said machine frame for rotation about an axis of rotation and having an anvil surface;a cutting tool mounted on said machine frame for rotation about an axis of rotation and having a cutter cooperating with said anvil surface such that in successive rotary positions, respectively successive cutter sections stand in an operative position with successive anvil surface sections in order to cut a material passing between said cutting tool and said anvil drum;said cutter being constructed such that different cutting forces occur when different cutter sections cooperate with corresponding anvil surface sections;said cutting tool and said anvil drum being pretensioned in a direction towards each other with a pretensioning force;said cutting tool being supported by means of at least one supporting ring arranged non-rotatably relative to said cutting tool via successive supporting ring sections on successive supporting surface sections arranged non-rotatably relative to said anvil drum;wherein:the respectively operative supporting ring section acts on the respectively operative supporting surface section with a bearing force corresponding approximately to the difference between the pretensioning force and the cutting force; andsuccessive supporting ring sections vary in at least one of elasticity and shape to apply a variable bearing force to operative cutter sections corresponding to said supporting ring sections, such that with the variable bearing force respectively resulting from approximately the difference between the pretensioning force and the cutting force, said supporting ring holds said cutter section standing in the operative position at a defined spacing from the corresponding operative anvil surface section.