| 摘要 |
PROBLEM TO BE SOLVED: To contrive enhancement in product quality and productivity by properly cutting a bead being not restricted by a pipe diameter, in a milling type tube cutting device. SOLUTION: Clamps 17, 18 of an electro-resistance-welded tube are mounted on a traveling carriage 13, a steel tube cutting machine 19 is mounted in between, a pinch roller 26 for accelerating the tube is arranged in the downstream side in the conveying direction of the electro-resistance-welded tube P from the steel tube cutting machine 19, and a bead cutting machine 27 for cutting a cordlike bead Bc is arranged between the steel tube cutting machine 19 and the pinch roller 26 for accelerating the tube.
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