Cold rolling apparatus

The A cold rolling apparatus comprising:

• a heating device configured to heat a sequentially transferred steel sheet;
• a cold rolling mill configured to sequentially cold-roll the steel sheet after being heated;
• a meandering-movement correction device arranged on an upstream side of the heating device in a transfer direction of the steel sheet, and configured to correct a meandering movement of the steel sheet transferred toward the heating device, the meandering-movement correction device includes:
• roll bodies configured to rotate while being brought into contact with the steel sheet so as to transfer the steel sheet;
• and
• a roll tilting unit configured to tilt the roll bodies so that a center axis of each of the roll bodies tilts with respect to a horizontal direction, and
• a meandering-movement suppression device arranged between the heating device and the cold rolling mill, and configured to suppress a meandering movement of the steel sheet attributed to the cold rolling of the steel sheet by using the cold rolling mill, the meandering-movement suppression device includes a plurality of roll bodies arranged zigzag in the transfer direction of the steel sheet and configured to transfer the steel sheet toward an entrance side of the cold rolling mill from an exit side of the heating device and to sandwich the steel sheet from both sides of the steel sheet in a thickness direction so as to restrain the movement thereof in a width direction.