B41F33/0027

Device for measuring elevated areas of the surface of a rotary body and system having the device
12409646 · 2025-09-09 · ·

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.

DEVICE AND METHOD FOR CAPTURING THE SURFACE OF A ROTATION BODY FOR A PRINTING PRESS
20250305814 · 2025-10-02 ·

A device and a method for capturing the surface of a rotation body for a printing press, being a cylinder, a roller, a sleeve for a cylinder or roller, or a sleeve for a cylinder or roller having a printing form, include a motor rotating the body around an axial axis, a light source illuminating an area of the surface using optical light, and an optical camera capturing the illuminated area. An optical apparatus guides the light of first and second partial beams to an image sensor of the camera. The first partial beam tangentially strikes or touches the surface at a first point, then reaches the camera, and the second partial beam radially strikes the surface at a different second point, then reaches the camera. Rapid and precise measurements or types of measurements are performed simultaneously or using the same measures, for example in mounters for flexographic printing plates.

Screen mask inspection device, solder printing inspection device, and method for inspecting screen mask

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.

CONTROL SYSTEM FOR A PRINTING APPARATUS
20250363612 · 2025-11-27 ·

A control system for a printing apparatus for printing in particular flat substrates, with a rack, on which a receptacle for a printing template, in particular printing screen or printing stencil, is arranged, with a camera device, which is assigned to the receptacle, and with a user interface for inputting and/or obtaining information. What is provided is an evaluation device, which is connected to the camera device, in order to receive at least one image of the printing template detected by the camera device, wherein the evaluation device is formed to classify the printing template as being reusable or as being non-reusable as a function of the received image.

Printing system
12472761 · 2025-11-18 · ·

A printing system comprising a flexographic printing machine comprising at least one impression cylinder, on which the material in sheet form to be printed is wound and around which at least one printing station is arranged. Each printing station comprises a plate cylinder, which is provided with a graphic element, and an anilox roller. Downstream of each printing station there is at least one drying unit for the inks which emits at least one first air flow and aspirates at least one second air flow; there are also elements for acquiring a coverage value of the graphic element present on the plate cylinder of each printing station and elements for automatically adjusting a flow rate of the first air flow and of the second air flow as a function of the coverage value of the graphic element acquired by the acquisition elements.

Device and method for capturing the surface of a rotation body for a printing press

A device and a method for capturing the surface of a rotation body for a printing press, being a cylinder, a roller, a sleeve for a cylinder or roller, or a sleeve for a cylinder or roller having a printing form, include a motor rotating the body around an axial axis, a light source illuminating an area of the surface using optical light, and an optical camera capturing the illuminated area. An optical apparatus guides the light of first and second partial beams to an image sensor of the camera. The first partial beam tangentially strikes or touches the surface at a first point, then reaches the camera, and the second partial beam radially strikes the surface at a different second point, then reaches the camera. Rapid and precise measurements or types of measurements are performed simultaneously or using the same measures, for example in mounters for flexographic printing plates.