| 摘要 |
PURPOSE:To detect quickly the shape of the end part of a plate material, by deciding current plate width data to be defective if this data is smaller (larger) than already taken-in plate width data in respect to the leading edge (the trailing edge) of the plate material. CONSTITUTION:In respect to the leading edge part (the trailing edge part) of a steel plate, if current plate width data is smaller (larger) than already taken-in plate width data in a computer 36, current plate width data is decided to be defective, and defect deciding information is added to current plate width data to take this data into a data storage area; and if plate width data becomes zero once, all following plate width data are decided to be defective, and defect deciding information is added to current plate width data or all following plate width data to take these data into the data storage area. After all data are stored, plate width data are adopted or rejected selectively in accordance with defect deciding information, and the shape of the end part of the steel plate is detected on a basis of effective data, and a shearing position is determined. |
