Linotype-hell Ag

Heidelberger Druckmaschinen Ag

Sidmar N.v.

Gerald Johannes Sermund

Wolfgang Boppel

Michael Wilharm

Roland Herb

Wilfried Hermann Nisch

Karl Heinz Herrmann

In a method and system to control an engraving device for the engraving of printing forms by means of an engraving tool controlled by a driving system, set engraving values for the cups along with engraving signal values are produced from engraving data as a control signal for the driving system. Working strokes of the engraving tool and distances between the printing form and the engraving tool are measured and actual values of engraving depth are determined from the differences and compared to set engraving depth values. The control signal is turned on at beginning of engraving and off when the engraving depth is reached. Set values for pressure force and tracking force are obtained and compared to actual pressure force values applied to the engraving tool and the actual tractive force values applied to a return element of the engraving tool. Exceeded set values are indicated. The control signal is corrected according to pressure force and tractive force measurement to allow for differing hardnesses of material.

Method and device to control an engraving device

Electron beam generator with magnetic cathode-protection unit

Method and apparatus for manufacturing a texture drum

Method for the low-maintenance operation of an apparatus for producing a

Method and apparatus for manufacturing texture drums

In the implementation of the method for manufacturing a texture drum, a surface structure is produced in the region of a surface with an electron beam, preceding a charging occurring within a working interval with an electrons beam having an energy density generating a recess, the texture drum is charged during a pre-treatment interval by an electron beam having an energy density that leaves the surface structure essentially as it was formed.

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Kiel, Germany

Gerald Johannes Sermund