| 摘要 |
<p>PURPOSE: To treat plural kinds of works having different lengths without changing a heating coil by changing the position of a second heating coil interlocking with the positional change of a work center. CONSTITUTION: This apparatus is provided with a first heating coil 100 for heating the work W rotatably supported with one pair of the work centers 310A, B and the second heating coil 200 shiftably arranged in the axial line WL direction of the work W. The first heating coil 100 is provided with one pair of heating conductive bodies 110A, B arranged parallel with the axial line and a connecting conductive body 120, and the second heating coil is provided with one pair of heating conductive bodies 210A, B arranged parallel with the axial line WL, a connecting conductive body 220 and an electric conductive plate 230. This electric conductive plate 230 is arranged between the connecting conductive body 120 of the first heating coil 100 and the work W and further, the heating conductive bodies 110A, B are arranged parallel so as to approach the heating conductive bodies 210A, B, and the second heating coil 200 is made to be interlocked with the shifting in the axial line WL direction of the work center 310A.</p> |
