DEVICE AND METHOD FOR MEASURING KINKS IN COIL

Title:

DEVICE AND METHOD FOR MEASURING KINKS IN COIL

Document Type and Number:

WIPO Patent Application WO/2019/035695

Kind Code:

A1

Abstract:

The present invention relates to a device and a method for measuring kinks in a coil, whereby kinks, which are shape defects in a coil, are measured after the coil is wound in a coiler of a hot rolling line but before the coil is transported to post-processing. The device for measuring kinks in a coil according to an embodiment of the present invention includes: a laser generator for irradiating the coil with a linear laser passing from one coil surface, which includes the inner wound part of the coil, through the central point of the coil; a camera for acquiring an image of the inner wound part from the one coil surface to the other coil surface on the reverse side of the one coil surface with respect to the central point of the coil, while moving along with the laser of the laser generator; and a measuring instrument for measuring the quantity of kinks in the coil by calculating the distance from the central point of the coil to the coil end on the one coil surface and the distance from the central point of the coil to the coil end on the other coil surface on the basis of the image acquired by the camera.

Inventors:

CHOI YONG-JOON (KR)
KONG NAM-WOONG (KR)
CHOI CHEOL-HEE (KR)

Application Number:

PCT/KR2018/009481

Publication Date:

February 21, 2019

Filing Date:

August 17, 2018

Export Citation:

Click for automatic bibliography generation Help

Assignee:

POSCO (KR)

International Classes:

G01B11/25; G01B11/30; G01B21/02; G06F17/10; G06T1/00; G06T7/60; H04N5/225

Foreign References:

KR101553152B1	2015-09-15
KR20110077782A	2011-07-07
JPH0914933A	1997-01-17
KR101665869B1	2016-10-13
JP2013246151A	2013-12-09
KR20110077782A	2011-07-07

Other References: