Device for measuring elevated areas of the surface of a rotary body and system having the device
US12409646B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 11, 2020 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Apr 9, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41P2233/13
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.