Rolling mill for metal foil

A rolling mill for metal foil, comprising:

• a pair of work rollers having axes in parallel to each other for subjecting a sheet material being supplied therebetween to strip processing;
• two pairs of intermediate rollers arranged so that the intermediate rollers of each pair are in contact with one of the work rollers and have axes in parallel to the axis of the contacting work roller;
• two pairs of backup rollers arranged so that the backup rollers of each pair are respectively in contact with one pair of the intermediate rollers;
• an unwinder on which a material to be rolled is wound and which is disposed on an upstream side of the pair of work rollers;
• a rewinder on which a rolled product is to be wound and which is disposed on a downstream side of the pair of work rollers;
• a first guide roller for the material disposed between the unwinder and the pair of work rollers;
• a second guide roller for the product disposed between the rewinder and the pair of work rollers;
• and
• each of the first and second guide rollers comprising a center shaft and a hollow roller surrounding the center shaft and disposed rotatably relative to the center shaft;
• whereby minimizing a probability that the metal foil is severed when wind speeds of the unwinder and the rewinder change.

A rolling mill for metal foil, comprising:

• a pair of work rollers having axes in parallel to each other for subjecting a sheet material being supplied therebetween to strip processing;
• two pairs of intermediate rollers arranged so that the intermediate rollers of each pair are in contact with one of the work rollers and have axes in parallel to the axis of the contacting work roller;
• two pairs of backup rollers arranged so that the backup rollers of each pair are respectively in contact with one pair of the intermediate rollers, whereby each pair of intermediate rollers and the pair of backup rollers in contact with the pair of intermediate rollers impart roll load to the work roller in contact with the pair of intermediate rollers;
• and
• a plurality of first jetting means for a coolant of high temperature and a plurality of second jetting means for a coolant of low temperature that are disposed on an upstream side of the pair of work rollers and arranged alternately along the axes of the pair of work rollers.