PURPOSE: To properly aligning end parts by contacting a touch roll, in parallel to a core pipe, with an upper part of a winding product, pressurizing the roll downward and further setting the pressure, matching at least the weight of the final winding product and decreasing gradually the pressure to the touch roll in accordance with increase of the winding weight.
CONSTITUTION: The initial pressure by a touch roll 7, when rewinding is started, is set so that a load of equal to or larger than weight in the final rewinding length of a winding product 6 is applied to it, next so that a load of equal to an increasing amount of weight of a film 1, increased in accordance with increase of a winding size, is successively decreased. In this way, a load applied to rewinding rolls 4a, 4b is held to a fixed value from initial size time to the final winding length. As a result, friction force between the winding product 6 and the rewinding rolls 4a, 4b is obtained in a fixed value from the initial size time to the final winding length, and end parts 6a are properly formed because also a width of the film 1 is held in a fixed value by not changing a draw.
YAMADA SADAO
TASHIRO TAKESHI
