| 摘要 |
This invention is configured having a control mechanism which supports a preform and controls the state of rotation of a support member being moved through a heating region so as to control the orientation of the preform with respect to heating devices, the control mechanism having a first magnetic pole member arranged along at least a part of the heating region and a second magnetic pole member fastened at a portion of the support member being moved through the heating region facing the first magnetic pole member, the support member moved through the heating region being set to a rotation state determined by a relationship between the polarity of the first magnetic pole member and the polarity of the second magnetic pole member. |
