| 摘要 |
PROBLEM TO BE SOLVED: To provide a cold rolling machine, which can improve its productivity without largely increasing its floor space, and can improve the forming accuracy of rolled products. SOLUTION: The cold rolling machine comprises a forming roll device, mandrel devices, back-up roll devices, and a workpiece centering roll device. The mandrel devices D<SB>1</SB>(D<SB>2</SB>), the back-up roll devices B<SB>1</SB>, (B<SB>2</SB>), and the centering roll device C are arranged on both sides of the fixedly arranged forming roll device A respectively, The forming roll device A can be used in common, and is configured so as to carry out the rolling operation on both sides of the forming roll FR. COPYRIGHT: (C)2007,JPO&INPIT
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