To deliver a plurality of spools formed on two spindles arranged on upper and lower winding positions all at once without degrading the quality.

Cores C each having a length greater than a core length equivalent to a band sheet width are used for separated band sheets S, respectively, to form spools R on the two spindles 3. A carriage 7 having a pair of supporting arms 8, 8 for the spools R is moved forward to move core receiving parts 9, 9 of the pair of supporting arms to the lower sides at both ends of the cores C protruded from both ends of the spools R on the spindles 3 until the cores C can be constrained in their axial direction and their rolling direction by the core receiving parts 9, 9. Then, the spindles 3 are pulled out of the winding positions in the axial direction and the carriage 7 is moved backward.