| 摘要 |
PURPOSE:To improve the yield by cutting the side parts of a steel tape, whose margin for trimming is too narrow to cut with side trimmers, by means of welders, and cutting side parts having wide margin for trimming by the use of said side trimmers. CONSTITUTION:Welders 4 using laser, plasma, etc. are provided on the steel-type entering side of side trimmers 2. The margin for trimming is calculated by means of a width detector 5 in which a phototube, etc. is used. The operation of the welders 4 and the side trimmers 2 is controlled 6 based on said calculation. When the width to be cut is above 5mm., cutting is carried out by means of the side trimmers 2 while, when said width is 5mm. or less, cutting is conducted by means of the welders 4. |
