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(11) | EP 1 181 990 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Reversible guideless rolling mill |
| (57) A pair of rolling machines 12 and 13 are arranged in series in alignment with a pass
line PL along which a workpiece 11 to be rolled is passed. The center distance P between
the first rolls 17 of the first rolling machine 12 and second rolls 19 of the second
rolling machine 13 is designed to be not more than 1.5 times the roll diameter R.
The rotational axes of the first rolls 17 are displaced by an angle of 90° from those
of the second rolls 19 and are inclined at an angle of 45° respectively with respect
to the horizontal plane. A plurality of dual-purpose calibers 21/23 are defined between
the rolls 17/19 of the rolling machines 12/13 to be arranged in the axial direction,
respectively. The rolls 17 and 19 are shifted in crossing directions to the pass line
PL respectively so as to bring desired dual-purpose calibers 21 and 23 in alignment
with the pass line PL. |