| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot-straightening apparatus for the end bend of a pipe with which the end bend can be easily straightened for various kinds of sizes of pipes by simple equipment constitution. SOLUTION: This hot-straightening apparatus 1A for the end bend of the pipe with which the end bend of the pipe is hot-straightened and which is provided with a conveying part 20 for conveying the pipe 10 in the direction orthogonally crossed with the axial direction while rolling it and a straightening part 30 for straightening the bend in the end part of the pipe. The straightening part is provided with an arm 3 which has a receiving part 8 having an upward surface and a pressing part 6 which has a supporting point 9 on the side of one end and a downward surface opposing to the receiving part on the side of the other end and a driving mechanism 14 for vertically oscillating the arm by taking the side of the one end as the supporting point. The conveying part and the straightening part are arranged so that the end of the pipe conveyed by the conveying part is passed through between the pressing part and the receiving part of the straightening part and the bottom dead center of the pressing part moved vertically by the driving mechanism is arranged at a prescribed distance above the receiving part. COPYRIGHT: (C)2006,JPO&NCIPI
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