Windmoeller & Hoelscher Kg

WindmÖller & HÖlscher Kg

Windmoller Holscher

Frank Gunschera

Frank Westhof

Martin Krümpelmann

Uwe Rogge

Robert Blom

Rainer Ehrenberg

Markus Bauschulte

Guenter Rogge

Manfred Loddenkoetter

Andreas Ihme

Dietmar Koopmann

Martin Kruempelmann

Wolfgang Knapheide

Uwe Hoewelmeyer

Uwe Höwelmeyer

Dietmar Pötter

Mario Frankenberg

Moritz Koplin

Udo Kobusch

Wolfgang Sprehe

Björn Weidmann

The invention relates to a method for automated error management in a printing machine, wherein a recurring print image is imprinted on a moving material web. To improve automated error management for existing inspection systems, the invention provides a method wherein the print image is acquired by a line scan camera and forwarded to a control unit, in which a print error is recognized in the acquired print image, using an error recognition algorithm, and is saved by the control unit together with a position information and a status information. The position includes at least the margin position of the print error on the material web, and a plurality of recognized print errors are entered by the control unit in a cluster image depending on the position information and the status information, wherein the control unit recognizes an error cluster and error cluster information is output via the error cluster.

Method for automated error management in a printing machine

The invention relates to a method () for producing an image structure () according to an image specification (), in particular for a letterpress process and/or intaglio printing process, characterized in that the following steps are carried out: a) providing a base () for receiving the image structure (), b) producing an image structure () on the base () so that an image layer () is formed on the base () by means of the image structure ().

Method for producing an image structure

The invention relates to a method for the control of the rotational speed for a drive device () of a printing roll () with a resilient printing sleeve () of a flexo printing press () comprising the following steps:

Method for the control of the rotational speed for a drive device of a printing roll

An inking system of a printing press includes an impression cylinder for guiding a printing substrate, and at least one ink-transfer roller. The ink-transfer roller includes a cylinder mandrel, on which at least one cylinder sleeve is concentrically displaceable, and bearing blocks, in which ends of the ink-transfer roller are mounted and which are independently displaceable in the radial direction of the impression cylinder. The ink-transfer roller can be set against the impression cylinder or any other ink-transfer roller, with a bearing block being detachable from one end of the ink-transfer roller and displaceable relative to the ink-transfer roller so that the cylinder sleeve can be removed via this one end. A stop device, with which the cylinder sleeve can be brought into contact, has components that are movable in the axial direction of the print roller. The movable stop device components can be decelerated via a force-providing element.

Inking unit of a printing machine

The invention relates to a method for aligning at least two cylinders in a parallel manner relative to each other. In a first step, one cylinder is rotated and moved in a parallel manner towards the other cylinder in order to align a first end of the cylinder, and in a second step, the second end of the cylinder is rotated and moved towards the other cylinder in order to align the second end of the cylinder.

Method for aligning at least two cylinders in a parallel manner relative to each other

The invention relates to a drying device () for a drying between inking units of a printing machine (), with which a substrate () can be transported via rotating cylinders () and is printable with a coloring agent (), with

Drying device, system comprising a drying device and method for operating a drying device for drying between inking units of a printing machine

A printing press includes at least one impression cylinder, which has a first and a second front side and to which at least two inking systems each having a print roller are assigned. The print rollers are set against the impression cylinder and each print roller is driven via a drive. A first inking system is assigned to the first half of the impression cylinder and a second inking system is assigned to the second half. The drive of the print roller of the first inking system disposed in the first half is arranged on the first front side of the impression cylinder, and the drive of the print roller of the second inking system disposed in the second half is arranged on the first front side of the impression cylinder.

Printing press with several inking units

A printing machine has at least one central impression cylinder, to which several inking units are allocated, in which a printing material sheet can be fed along a feed path to the impression cylinder in an area between a first inking unit and a last inking unit, and an unwinding station, from which the printing material sheet can be unwound, in which a passable area is provided between the impression cylinder and the unwinding station, at which the printing material sheet can be passed. Sound-absorbing elements are arranged above and/or beneath the feed path.

Printing press comprising sound absorbing elements

A printing machine with at least one inking unit which has at least two cylinders which are set against each other during the printing operation and can be rotated by at least one drive. The printing machine is provided with sensors for recording parameters of the rotary motion of the cylinders such as the torque and speed. A setting mechanism is provided for setting the at least two cylinders against each other in radial direction. The control unit is configured to trigger the setting mechanism to set the at least two cylinders against each other. The at least two cylinders are brought to different circumferential velocities and set against each other. The relative position of the two cylinders is recorded or maintained when at least one parameter of the rotary motion of the at least two cylinders exceeds a threshold value.

Growing community of inventors

Osnabrueck, Germany

Frank Gunschera