A system can include one or more image sensors, a processor system, one or more output devices, and one or more computer-readable storage media. The output devices can include a printing device configured to apply a graphic on an article. The one or more computer-readable storage media storing computer-executable instructions that when executed by the processing system, cause the system to perform a method of processing an article. The instructions can include instructions to receive an image of the article from the one or more image sensors, instructions to determine a location of one or more fiducials in the image of the article, instructions to determine a print location on the article based on the location of the one or more fiducials in the image of the article, and instructions to send a signal to the printing device to print the graphic on the article at the print location.

The invention relates to a method of aligning a plurality of printed motifs on a sheet (3) in a converting machine (10). An actual position (Pa_1) at a first sensor is defined as an initial reference position (P_ref1) for the sheet, and at least one displacement error (d2) is calculated and compared to a first threshold (T1). If the displacement error is lower than the first threshold, then the angular position () of a printing cylinder (42) in the second flexographic printing unit (16b) is adjusted. However, if the error is higher than the first threshold, then at least part of the of the displacement error (d_2) is corrected by modifying the speed (V) of a vacuum transfer unit located between the first printing unit and the second printing unit.

A can decorating system includes a can decorator including at least a plurality of cylinder plates and a plurality of inking stations; and a control station communicatively coupled to the can decorator. The control station includes an input apparatus; a display; a control system structured to monitor and control operations of the can decorator; and an automatic label creator structured to receive a label specification, create a label, determine values for image registration based at least in part on the label specification and data associated with previously applied labels, and transmit at least the label and the values to the control station. The control system causes the plate cylinders and inking stations to be adjusted based on the label and the values of image registration. The plate cylinders and inking stations print the label on undecorated cans based on the label and the values.

A device for measuring elevated areas of the surface of a rotary body in the form of a cylinder, a roller, a sleeve or a plate of a printing press, for example a flexographic printing plate, includes a first motor for rotating the rotary body about a rotational axis and a measuring unit for contactless measurement. The measuring unit for contactless measurement includes at least one radiation source and at least one area scan camera. The measuring unit for contactless measurement preferably includes a reference object, for example a wire tensioned in an axially parallel manner, a second motor and optionally a further second motor, for adjusting the measuring unit and/or the reference object perpendicularly to the rotational axis. The device makes it possible to measure elevated areas, for example flexographic print dots, quickly and with high precision. A system having the device is also provided.

A coating device for the register-accurate application of plastic material to a carrier sheet comprises a first coating roll and a downstream second coating roll, wherein each of the first and second coating rolls has at least one cavity that can be filled with plastic material by means of at least one nozzle. First and second stripping means strip the respective first and second coating rolls. The first coating roll interacts with a first mating roll and coats a first carrier sheet side and the second coating roll interacts with a second mating roll and coats a second carrier sheet side. The second mating roll comprises at least one mating cavity corresponding to the at least one first cavity. In addition, the coating device comprises at least one carrier sheet positioning device and a coated region detection device. Related methods of coating a carrier sheet are also disclosed.

A screen mask inspection device inspects a screen mask including a screen opening that forms a printing pattern, and includes: an inspection control device that detects solder position information of a solder paste printed on a substrate via the screen opening, and based on the solder position information, determines whether a quality of printing using the screen mask is good or bad, the solder position information being based on an amount of positional misalignment of the solder paste actually printed on the substrate relative to a predetermined reference position.

A method of printing on workpieces comprising placing a workpiece in one of a plurality of holders provided spaced apart on a conveyer and moving the holders forward. The method comprises obtaining a first image of the workpiece in the holder, the first printing station comprising a printing head adjustable relative to the conveyer, and determining, based on the first image, the actual position of the workpiece in the holder. Further, the method comprises calculating a printing position of the printing head relative to the holder for positioning the print in a predetermined desired position on the workpiece, based on the predetermined desired position of the print on the workpiece and the determined actual position of the workpiece in the holder. The method also comprises adjusting the position of the printing head to the calculated printing position and printing a print on the workpiece.

A method of printing on workpieces comprising placing a workpiece in one of a plurality of holders provided spaced apart on a conveyer and moving the holders forward. The method comprises obtaining a first image of the workpiece in the holder, the first printing station comprising a printing head adjustable relative to the conveyer, and determining, based on the first image, the actual position of the workpiece in the holder. Further, the method comprises calculating a printing position of the printing head relative to the holder for positioning the print in a predetermined desired position on the workpiece, based on the predetermined desired position of the print on the workpiece and the determined actual position of the workpiece in the holder. The method also comprises adjusting the position of the printing head to the calculated printing position and printing a print on the workpiece.

A method for correcting a measurement value of a reference mark on a material web is disclosed. A controller, a machine, a computer program and a computer program product can perform a correction of this type. To improve determination of the position of a reference mark on a material web, a machine in which the material web is moved in a conveying direction has at least one tool that functions in a non-positive locking manner, a second tool that functions in a non-positive locking manner and is located downstream of the first tool in the conveying direction, and a sensor that is located between the two tools. A measurement error in the sensor which arises as a result of an adjustment of the second tool is determined at least approximately at least via parameter values of the second tool. The measurement value is corrected by the measurement error.

The invention relates to an inspection device (42) for checking the position of at least one coating on a blank (1) transported through a converting machine (10). The inspection device comprising a camera (49) configured to capture an image of a portion of the blank provided with a reference mark (30) comprising at least one coating, An optical axis (A) of the camera is arranged at first angle () in relation to a vertical axis (V) defined by a normal vector (N) of a surface of the blank (1). An illumination system (50) is configured to emit incident light rays towards a measuring point (Pm) on the blank 1. The incident light rays from the illumination system are directed to the reference mark and specular reflected light rays from the reference mark are captured by the camera.