| 摘要 |
PURPOSE:To improve joining strength and rolling efficiency by cutting a preceding material and succeeding material and joining these materials by welding on the inlet side of a finishing mill, providing a looper between a joining machine and the finishing mill and forming the hot material to an S-shaped looper. CONSTITUTION:The rotary type S-shaped looper 5 is constituted of a pair of discs 51, plural pieces of guide rollers 52, and respectively a pair of pushing rollers 53 and pinch rollers 54. A rough rolling material 10 passes a joining machine 3 and the looper 5 and is guided to the finishing mill. The pinch rollers 54 pinch the material 10a and while the material is pushed and curved by the pushing rollers 53, the looper 5 is rotated. The rear end of the preceding material and the front end of the succeeding material are cut, joined and welded and the preceding material of the looper is pair off when the material is looped. The time for joining by welding is reduced and the joining strength is improved. Since the quick passing is possible, the rolling efficiency as a while is improved.
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