To enable automation without increase of man-hours and the number of parts, complication of the device configuration, and enlargement, and to ensure the start of winding of long material.

A heater block 32 is moved toward a winding shaft 21, and onset side portions of long materials 13, 15, 17, 19 made of PP are overlapped, pinched and heated between a PP-made core tube 103 fitted to the winding shaft 21 and pin parts 34 of the heater block 32. The long materials 13, 15, 17, 19 are deposited with respect to the core tube 103.