Online detection method and device for plate shape defects of oriented silicon steel finished product

Abstract

The invention discloses an online detection method and device for plate shape defects of oriented silicon steel finished products, and belongs to the technical field of measuring equipment. The devicecomprises a detection end, a processing end and a network end; the detection end is used for measuring the vertical height from each point on a steel belt to a laser head, calculating the height difference between each point and the reference surface by taking a unit roller way as the reference surface, and drawing steel belt contour data according to the difference value; the processing end is used for processing the steel belt contour data to obtain steel belt full-length contour data, correcting the steel belt contour information into plate shape information, storing the plate shape information into a plate shape database, automatically classifying defects and generating a slitting instruction according to the plate shape information, and uploading the slitting instruction to the network end; and the network end is used for checking the slitting instruction of a to-be-produced steel coil so as to carry out production through the slitting instruction. A non-contact laser contour scanning method is combined with steel strip jitter suppression suitable for oriented silicon steel, contour information is corrected into the plate shape defect information through laser joint correction, the manufacturing cost is low, and a steel strip coating layer cannot be damaged.

Description

technical field [0001] The invention belongs to the technical field of measuring equipment, and more specifically relates to an on-line detection method and device for shape defects of finished oriented silicon steel products. Background technique [0002] Oriented silicon steel is annealed at high temperature in an annular furnace, stretched and leveled, and plate shape defects such as buckle, edge wave, horseshoe print, and wrinkle often occur. . In the stretching and leveling unit running at high speed, the shape defects on the steel belt are not easy to be observed by naked eyes, and the severity of the defects such as the height of the buckle, the height and depth of the edge waves cannot be recorded quantitatively, which leads to inaccurate data transmitted to the shearing process and cannot be reasonably formulated Cutting and volume planning. If the shape defects of the steel strip can be accurately monitored online, the parameters related to the shape defects can ...

AI Technical Summary

Problems solved by technology

Traditional flatness measurement mostly uses contact measurement with flatness rollers and other devices, which is expensive and may damage the coating of the steel strip

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