US 2026/0227341 A1 · DEVICE FOR INSPECTING A PLANAR OR WEB-SHAPED OBJECT

Abstract

A device and a corresponding method for inspecting a web-shaped or planar object. The device includes a vibration generator and an optical sensor and, if necessary, a corresponding illumination apparatus. In order to avoid contamination or mechanical damage to the object and at the same time to enable precise optical inspection of the object, the vibration generator forms a plane levitation surface on a side facing the object, over which the object is movable in suspension substantially parallel to the levitation surface. The vibration generator is formed in one piece and has at least one through-going vibration generator, the levitation surface cutting through in such a way that the object is inspectable by the optical sensor arranged on the object-distant side of the vibration generator facing away from the object or by the illumination apparatus arranged on the side of the vibration generator facing away from the object.

Claims15

Dependent claims

A device for inspecting a web-shaped or plate-shaped object having a top side and a bottom side, the device comprising:

a vibration generator;
an optical sensor;
and
a corresponding illumination device,
wherein the vibration generator forms a plane levitation surface on a side facing the object over which the object is movable from a first end to a second end by a conveying device,
wherein vibration frequency and vibration amplitude of the vibration generator are adjustable in such a way that the object is movable in suspension substantially parallel to the levitation surface,
wherein the object is inspectable by the illumination device and the optical sensor, and
wherein the vibration generator is formed in one piece and comprises at least one through-going gap partially cutting through the levitation surface in such a way that the object can be inspected directly through the gap by the optical sensor arranged on the side of the vibration generator facing away from the object and/or can be illuminated directly through the gap by the illumination device arranged on the side of the vibration generator facing away from the object.

5 more elements

A method for inspecting a web-shaped or plate-shaped object having a top side and a bottom side, wherein a device comprises a vibration generator and an optical sensor as well as a corresponding illumination device wherein the vibration generator forms a plane levitation surface on a side facing the object, wherein the vibration generator is formed in one piece and comprises at least one through-going gap partially cutting through the levitation surface, the method comprising:

moving the object by a conveying device from a first end to a second end of the levitation surface, wherein vibration frequency and vibration amplitude of the vibration generator are set such that the object is movable in suspension substantially parallel to the levitation surface, and
inspecting the object by the illumination device and the optical sensor which comprises directly inspecting the object through the gap by the optical sensor arranged on the side of the vibration generator facing away from the object and/or directly illuminating the object through the gap by the illumination device arranged on the side of the vibration generator facing away from the object.

Dependencies are inferred from the claim text.

Device for inspecting a planar or web-shaped object

Life of this patent

Device for inspecting a planar or web-shaped object

Life of this patent

Abstract

Claims15