| 摘要 |
<p>A roller leveler is provided in which, even when the number of leveling rolls is relatively small, a pitch of the leveling rolls arranged in a zigzag manner in the carrying direction of a steel plate is capable of being made substantially uniform with a relatively simple structure when the pitch of the leveling rolls used for flattening the steel plate is changed.
The roller leveler 1 is provided with a first roll group 2 having first leveling rolls 4 through 7 arranged with a pitch "P1" in the carrying direction of a steel plate, a second roll group 3 having five pieces of second leveling rolls 9 through 13 which are arranged with the pitch "P1" in the carrying direction of the steel plate and are disposed in a zigzag manner with respect to the first leveling rolls 4 through 7, a first retract mechanism 29 for making the first leveling rolls 5 and 6 retract from the pass line "PL", and second retract mechanisms 32 and 33 for making the second leveling rolls 9, 10, 12 and 13 retract from the pass line "PL". The second roll group 3 is provided with third leveling rolls 8 and 14 which are disposed with the pitch "P1" in the carrying direction of the steel plate with respect to the second leveling rolls 9 and 13.</p> |
