Patent ID: 9457488
Filing Date: 2016-10-04
CPC Classification: B26D,B26F,B31B,B31F,Y10T

Claim Text:
1. A method for fixing a blade mount of a rotary die cutter, a cylindrical knife cylinder freely fitting two fixing rings to the knife cylinder, and holding and fixing, using the two fixing rings, the blade mount on an outer circumference face of the knife cylinder at both end portions along an axis direction of the knife cylinder of the blade mount, the method comprising: moving the two fixing rings, having recess grooves on respective outer circumference faces and being freely fitted to both end portions of the knife cylinder, toward a center of the knife cylinder by moving yokes placed inside the respective recess grooves of the fixing rings; holding and fixing the blade mount at the both end portions along the axis direction of the knife cylinder by the fixing rings; fixing the fixing rings to the outer circumference face of the knife cylinder by fixing devices provided one for each of the fixing rings, wherein: the blade mount has the both end portions along the axis direction of the knife cylinder, the end portions facing the respective fixing rings and having circumference faces entire of which are chamfered into descending slopes; each of the fixing rings has an end face facing the blade mount and having an inner corner entire of which is chamfered into a rising slope; and the rising slopes of the fixing rings depressing the respective descending slopes fix the both end portions of the blade mount, the end portions being along the axis direction of the knife cylinder, to the outer circumference face of the knife cylinder.