Abstract: 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, a method is provided 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 forwarded by the control unit to an error type database together with characteristics information. The error type database outputs the error type of the recognized print error in an implementation phase, the error type database having been trained by a plurality of operators in a training phase.

Abstract: 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.

Abstract: The invention relates to a method for automated error management in a printing machine, in which a recurring print image is imprinted on a moving material web. To improve automated error management for existing inspection systems, a method is provided in which an inspection of the moving material web is controlled by a control unit and a function switch, the function switch being switchable at least between a first function mode and a second function mode, and in which the print image is acquired by a first inspection unit in the first function mode and forwarded to the control unit, and in which the print image is acquired by a second inspection unit in the second function mode and forwarded to the control unit.

Abstract: The invention relates to a method (100) for producing an image structure (12) according to an image specification (20), in particular for a letterpress process and/or intaglio printing process, characterized in that the following steps are carried out: a) providing a base (10) for receiving the image structure (12), b) producing an image structure (12) on the base (10) so that an image layer (11) is formed on the base (10) by means of the image structure (12).

Abstract: 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.

Abstract: The invention relates to a drying device (10) for a drying between inking units of a printing machine (1), with which a substrate (2) can be transported via rotating cylinders (3.1, 3.2, 3.3) and is printable with a coloring agent (4), with an air supply unit (11) for supplying of air (5) in direction of the substrate (2) in order to effect a drying of the coloring agent (4), a suction unit (12) for discharging the air (5), a control unit (20), which controls and/or regulates the air supply unit (11) in dependence of the operating parameters (B) in a way that altering drying areas (13.1, 13.2, 13.3) are adjustable at the substrate (2).

Abstract: The invention relates to a base body (10) for receiving a print image structure (20), in particular for flexographic printing, comprising a sleeve (10.1), an elastic layer (10.2) applied onto the sleeve (10.1) for holding an outer carrier layer (10.3), and the outer carrier layer (103), the carrier layer (10.3) being designed in such a mariner that the print image structure (20) can be applied.

Abstract: The invention relates to a method (100) for producing an image structure (12) according to an image specification (20), in particular for a letterpress process and/or intaglio printing process, characterized in that the following steps are carried out: a) providing a base (10) for receiving the image structure (12), b) producing an image structure (12) on the base (10) so that an image layer (11) is formed on the base (10) by means of the image structure (12).

Abstract: The invention relates to a drying device (10) for a drying between inking units of a printing machine (1), with which a substrate (2) can be transported via rotating cylinders (3.1, 3.2, 3.3) and is printable with a colouring agent (4), with an air supply unit (11) for supplying of air (5) in direction of the substrate (2) in order to effect a drying of the colouring agent (4), a suction unit (12) for discharging the air (5), a control unit (20), which controls and/or regulates the air supply unit (11) in dependence of the operating parameters (B) in a way that altering drying areas (13.1, 13.2, 13.3) are adjustable at the substrate (2).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method for registering a rotary press for a printing process, in which “n” inking systems (Fn) each produce monochrome printed images and print one on top of the other thereby producing n-colored printed images, includes producing the images of a printed material with at least one sensor station, recording information on rotary movements of printing plate cylinders (Dn), and using the images and the information to produce correction signals which actuate the cylinders until a deviation of the images of the respective inking systems from a desired position on the material lies within a defined range of tolerance values. During the registering method, one printing plate cylinder at a time is in the printing position, the sensor station produces the printed images, and the correction signals are obtained based on the image produced by the respective cylinder and the information on the rotary movements of at least one cylinder.

Abstract: A multi-color rotary printing machine has one printing plate support assigned to the colors that are transferred onto the print substrate. This printing plate support supports a printing plate and is attached to a mandrel or a cylinder of a rotary printing machine in order to transfer the print image onto the print substrate. The rotary printing machine has register devices that determine the position of the printing plates with respect to one another and that have sensors to determine the positions of the printing plate support in the printing machine.

Abstract: A process for adjusting the print image of a rotating machine equipped with transfer rollers and actuators assigned to them includes changing the position of the rollers. During the printing operation, at least one camera records the intensity of light reflected from the printed material. The camera also feeds the recorded measured values to a control and regulation unit that compares the recorded measured values with set values, and generates corrective signals for the actuator of at least one part of the rollers involved in the printing process. Based on the corrective signals, the actuator of the relative position of the roller assigned to it is actuated until the measured values once again lie within a tolerance range.

Abstract: A process for adjusting the print image of a rotating machine is described. The rotation printing machine is equipped with in transfer rollers (F, K) and actuators assigned to them, with which it is possible to change the position (x) of the rollers (F, K). The new and inventive element of this process is that during the printing operation, at least one camera records the intensity of the light reflected from the printed material. The camera also feeds the recorded measured values to a control and regulation unit that compares the recorded measured values with set values and generates corrective signals for the actuator of at least one part of the rollers involved in the printing process. Based on the corrective signals, the actuator of the relative position of the roller assigned to it is changed till the measured values once again lie within a tolerance range.

Abstract: Introduced are a device and a process for setting the printed image of a rotary press by adjusting the relative position of the rollers (3, 7, 8) involved in the ink transfer. In this respect at least one part of these rollers (7, 8) can be moved toward each other both together and also independently of each other by means of their own actuating drives (M1 to M4), so that the rollers (3, 7, 8) involved in the printing process can be set into motion in relation to each other, In addition, there is at least one camera (K) that scans the printed image (10) on the printed material web (17) and that feeds the images shot in succession to an electronic control and regulating unit (13). This control and regulating unit (13) generates signals for the actuating drives of at least one part of the rollers (3, 7, 8) involved in the printing and inking process until or as the printed image is reproduced without area loss.

Abstract: Introduced are a device and a process for setting the printed image of a rotary press by adjusting the relative position of the rollers (3, 7, 8) involved in the ink transfer.