To reduce facility costs, to improve the dimensional precision of a rubber sheet with a profile, and to reduce the replacement cost for a profile roll.

A back-up roll 8 is provided which bears/supports the small-diameter profile roll 2 with a necessary uneven outline given to the periphery on a frame 6, supports a driving roll 3 having a larger diameter than that of the profile roll 2 and being paired with the profile roll 2 on the frame 6, comes into contact with the profile roll 2, and constrains the recess deformation from the driving roll 3 of the profile roll 2.