Abstract: A flexible die is used in an embossing apparatus in which a pair of flexible bases (2a, 2b) are respectively wrapped around a pair of cylindrical rollers disposed opposing each other, and a sheet to be processed (S) is passed through between the pair of rollers, thereby performing embossing. The pair of flexible bases (2a, 2b) are constituted by a female flexible base (2a) and a male flexible base (2b) that are mated with each other, a line-shaped convex portion (3a) corresponding to the contour of an embossing processing pattern is formed in the female flexible base (2a), and the convex portion (3b) is formed in the male flexible base (2b), the convex portion (3b) being fitted within the area encompassed within the line-shaped convex portion (3a) of the female flexible base while leaving an interval from the inner circumferential surface of the line-shaped convex portion (3a). A concave portion (30) is formed in the convex portion (3b).

Abstract: To obtain a push-cutting blade 2, a flexible base 1 and a projection (trapezoid-section projection 21) protruding from this base are formed by etching. Then, a lateral surface or surfaces of the projection 21 is cut into a vertical projection 2b. Lastly, the tip of the vertical projection 2b is sharpened to give a double (or single) cutting edge 2a.

Abstract: The object of the present invention is to provide a band blade automatic working device with a marking unit which can automatically perform a marking operation for indicating a position for forming a notch and improve a measurement accuracy thereof and an operation efficiency thereof, wherein a structure thereof and an operation thereof are simple. In order to achieve the object, a band blade bending device according to the present invention, for bending and cutting a band blade comprises a marking unit for marking a blade edge thereof so as to be visually recognized from a side of a sharpened surface of the blade edge, and a computer for supplying a driving signal for driving the marking unit based on a data for deciding a position of a concave portion which should be formed at a back of the band blade.