Invention Grant
- Patent Title: Method for checking a printing cylinder and a corresponding arrangement
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Application No.: US16494659Application Date: 2019-03-26
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Publication No.: US11340175B2Publication Date: 2022-05-24
- Inventor: Konrad Klimmey , Daniel Schmidt
- Applicant: MATTHEWS INTERNATIONAL GMBH
- Applicant Address: DE Duisburg
- Assignee: MATTHEWS INTERNATIONAL GMBH
- Current Assignee: MATTHEWS INTERNATIONAL GMBH
- Current Assignee Address: DE Duisburg
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: DE102018110749.8 20180504
- International Application: PCT/DE2019/100280 WO 20190326
- International Announcement: WO2019/210899 WO 20191107
- Main IPC: G01N21/956
- IPC: G01N21/956 ; G01N21/952 ; G06T7/00 ; G01N21/88

Abstract:
The invention relates to a method for checking a printing cylinder for defects in an engraved cylinder surface of the printing cylinder, comprising the steps: capturing a first and at least one further digital image of a cylinder surface of a printing cylinder by means of an optical capture unit, wherein the cylinder surface is cleaned before capturing the at least one further image, comparing the digital images each with a digital engraving master of the printing cylinder, the comparing comprising: determining deviations between each of the digital images and the digital engraving master, and checking the determined deviations for matching deviations between the digital images, wherein a pseudo defects is concluded if no matching deviations between the digital images have been detected when comparing, and wherein an engraving defect on the printing cylinder is concluded in the case of matching deviations. Furthermore, a corresponding arrangement is described.
Public/Granted literature
- US20210333221A1 METHOD FOR CHECKING A PRINTING CYLINDER AND A CORRESPONDING ARRANGEMENT Public/Granted day:2021-10-28
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