SPIN-MOLDING DEVICE

摘要

A spin-molding device for molding a sheet material on the back surface of which is formed at least one inward-facing wall surface facing the inside in the radial direction, said spin-molding device including a receiving jig, a rotary shaft, a processing tool, and a heater. The receiving jig supports the central portion of the sheet material, and the processing tool presses the front surface of the sheet material in a molding region that spans the inward-facing wall surface, while the processing tool is moved outward in the radial direction of the rotary shaft. The heater is moved so as to be positioned on the same circle as the processing tool. The heater includes a first coil unit, which locally heats the sheet material by inductive heating while facing the back surface of the sheet material, and a second coil unit, which locally heats the sheet material by inductive heating while facing the inward-facing wall surface of the sheet material.