METHOD FOR APPLYING A LOGO TO A ROTARY EMBOSSING CYLINDER AND A CYLINDER MADE ACCORDING TO SAID METHOD

摘要

The invention relates to the mechanical processing of sheet, roll or composite materials, in particular, to means for mechanically shaping a material without removal thereof, namely to the structural design of the rotary embossing cylinders which can be used for producing packing materials, wall-paper etc. The aim of the invention is to accelerate the process for producing a rotary embossing cylinder, since the used tool is designed in the form of electrodes which are easily produced and have an extended service life in comparison with cutting tools and a plate etching process. The cylinder produced according to the inventive method has projections of different shape, thereby making it possible to extend the range of functionalities thereof. The method for applying a logo to a rotary embossing cylinder involves forming a comtoured surface on the surface of a cylindrical blank by means of the electroerosion or electrochemical processing carried out with the aid of an electrode with a logo contour made thereon, and transferring the logo contour to the contoured surface of the cylinder, the cylinder and electrode being moved in the same direction at the same linear speed. The rotary embossing cylinder produced according to the described method makes it possible to ensure the high degree of the logo contour reproduction during embossing owing to that the shape of the side surface and the height of the projections are determined by the logo contour which is made on the electrode and is transferred to the cylinder contoured surface as a result of the electroerosion or electrochemical processing.