Heidelberger Druckmaschinen Ag

Gregor Flade

Karl-Hermann Miltner

Reinhard Broghammer

A computer interface unit of an electronic control system is configured for providing a user-oriented selection arrangement for selecting an appropriate adjustment sequence for changing the alignment of a flexible membrane on a cylinder. The interface unit can be directly connected with a computer processor unit for directing the computer processor unit in the selection of an appropriate correction algorithm for operating the control devices for carrying out the adjustment. In general, a control console can be provided with operating elements for inputting control commands, display elements for displaying a respective status, and control keys for inputting the necessary information for carrying out the control operation.

Electronic apparatus and computer-controlled method for alignment

A sheet feeder for a sheet-fed printing machine having a cylinder with a gripper system, movable suction conveyors for separating individual sheets from a sheet pile, the suction conveyors being disposed adjacent one another in a sheet-conveying direction, and groups of revolving adjustable conveying elements for aligning the sheets on a drive side and on an operating side of the printing machine in association with the suction conveyors and cooperating therewith for feeding the sheets to the gripper system of the cylinder of the printing machine, includes a drive system for driving the groups of conveying elements independently of one another and with varied speed so as to align the sheets on both of the sides of the printing machine, and a device disposed at locations of the revolving conveying elements for querying the sheet edges and for generating, in accordance with a response to a respective query, an electric pulse for controlling the drive system; and a method of separating and aligning the sheets in the sheet feeder.

Device and method for separating and aligning sheets in a sheet feeder

Sheet delivery for a sheet-processing machine having a conveyor with a device for releasing conveyed sheets horizontally oriented on a displaceable base support above an auxiliary sheet pile, includes a device for inserting a plurality of base members as intermediate pile supports in a successive sequence opposite to a conveying direction of the sheets into respective gaps between sheets of respective pairs of the sheets, and a device including a guide for guidingly swiveling the intermediate pile supports together with a respective auxiliary pile accumulated thereon through an angle of 90.degree. into a main pile position wherein the sheets stand edgewise on a side edge thereof, and the intermediate pile supports are vertically withdrawable.

Sheet delivery for a sheet-processing machine

An ink box device for printing units with a closed ink container with an opening on the lower end, with a means to close the opening and with means to introduce compressed air into the ink container, on which ink can be applied over the length of an ink ductor roller in controlled quantities for each individual zone, without any wear parts coming into contact with the inking roller.

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Meckesheim, Germany

Gregor Flade