Patent ID: 6325263
Filing Date: 2001-12-04
Classification: B26D,Y10T

Abstract:
In a movable upper tool for separation of blanks from a die-cut sheet which has been processed in a press for manufacturing blanks for packages, said movable upper tool including a rectangular base plate with apertures and, on a lower surface of the plate, the plate having a plurality of punches, said punches cooperating with a lower tool having separating bars for the separation of blanks from the die-cut sheet, the improvements comprising the apertures having a curved edge and being arranged in a pattern of rows and columns extending along two orthogonal axes to form spaces on the lower surface between the apertures, one of said orthogonal axes consisting of a line slanted at an angle of between 15.degree. and 20.degree. with regard to one edge of the rectangular base plate of the movable upper tool and said punches being of a resilient material and secured on the lower surface in rows and columns in said spaces with at least one lateral side of the cross section of each of the punches being tangential to the curved edge of one of the apertures so that the apertures are substantially free of obstruction by the punches and a spacing between punches is constant and provides an identical full pressure of the punches on the blank to be separated in the neighborhood of each separating bar of the lower tool for the separating of blanks, whatever position is occupied by the separating bar of the lower tool.