MANUFACTURING METHOD FOR INSULATED ELECTRIC WIRE, AND ITS MANUFACTURING APPARATUS

摘要

Provided are an insulated electric wire manufacturing method, which can manufacture a conductor of a wider sectional shape stably according to the sizes than that of the method using a freely rotating rolling role and which can make all the steps tandem, and a manufacturing apparatus for the insulated electric wire. The method for manufacturing an insulated electric wire (D) comprises a conductor rolling step (a) of rolling a conductor (A) into a predetermined shape, and a film baking step (e) of baking an insulating film (B) on the conductor (A) rolled into the predetermined shape at the conductor rolling step (a). At this conductor rolling step (a), the conductor (A) is rolled into the predetermined step by a pair of rolling rolls (5A and 5A) rotated by a drive mechanism, and the spacing between the rolls (5A and 5A) is variably controlled according to the change in the width of the conductor (A) rolled.