Abstract

The present relates to a device for mapping at least one defect in a web of material comprising a mapping station comprises two modules named a first module and a second module and a computation module, the first module being arranged for marking the web with at least one reference mark at a known position, and for determining the initial position of said defect, and the second module being arranged for detecting a new position of the reference mark when said reference mark is read by the said second module, the computation module being arranged for computing a displacement of the reference mark to determine a final position of the detected defect at second station based on the computed displacement of the reference mark. The invention further relates to a system, a method for mapping and a method for removing a defect.

IPC Classes  ?

• G01N 21/89 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
• G06K 9/36 - Image preprocessing, i.e. processing the image information without deciding about the identity of the image
• G01N 21/88 - Investigating the presence of flaws, defects or contamination

Abstract

The present relates to a device (1) for detecting the presence of abnormalities in a reel (8) comprising: an image capturing module (3) for capturing images of the reel (8) comprising at least one camera (14), displacing means (5) for displacing said reel (8) in the field of view of said at least one camera (14), analyzing means for analyzing the images captured by said at least one camera (14) and detecting the presence of abnormalities, The image capturing module (3) comprises upper capture means (6) and lower capture means (7), the upper capture means (6) being fixed on a movable support (16) arranged for being movable with respect to lower capture means (7), the upper capture means (6) and/or the lower capture means (7) comprising at least one three dimension (3D) camera (14) arranged for providing a three dimension (3D) image of the reel (8). The invention further relates to a method for using the device (1) according to the invention.

IPC Classes  ?

• B65H 63/00 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions
• G01N 21/952 - Inspecting the exterior surface of cylindrical bodies or wires
• G01N 21/88 - Investigating the presence of flaws, defects or contamination