Cutting roll for producing shaped inner and outer cuts and a method for making same
AssigneeWinkler & Dunnebier Maschinenfabrik und Eisengiesserei KG
InventorGunter Heyden
Life of this patent
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Abstract
A cutting roll for producing shaped inner and outer cuts on moving webs or iscrete blanks of paper or the like and, more particularly, for the production of blanks for envelopes on envelope machines, includes a base or parent member carrying a web-like blade whose development corresponds to the contours of the format to be cut. The blade is composed of one or more weld beads disposed one above another and one beside another horizontally on the base member.
Claims2
A method of making a cutting roll for producing shaped inner and outer cuts on moving webs or discrete blanks of paper or the like, comprising the steps of:
- welding a multiplicity of weld beads made of a highly wear-resistant steel alloy on a base member made of a readily weldable steel so as to form a web-like blade whose cutting edge corresponds to the contour of the desired cutting pattern, said weld beads being disposed one above the other and one beside the other longitudinally along and on said base member, said weld beads being arranged and disposed to substantially assume the desired blade profile with a cutting edge having a rounded cross-sectional profile supported on a narrower neck portion so as to require only minor machining to form the cutting edge of the blade;
- and
- sharpening in a single machining operation the cutting edge of said blade to a shape resembling a pitched roof.
Dependencies are inferred from the claim text.