| 摘要 |
PURPOSE: An apparatus for forming films by swelling the thermoplastic resin is provided to prevent the expansion or displacement of a tube and maintain the fixed thickness of a tube even if the internal air of the tube of a stabilizing unit flows in into the tube of the stabilizing unit upper stream. CONSTITUTION: An apparatus for forming films by swelling the thermoplastic resin comprises a guide unit. The guide unit comprises a bottom plate, an upper plate, a vertical rod group(230), a horizontal rod group(240) and a roller group(250). The top and bottom of the vertical rod group is installed to the upper and bottom plates. The vertical rod group has the same center with the center of a tube. The vertical rod group is disposed at the phase difference of 45 degrees along the circumferential trace larger than the tube. The leading end of the horizontal rod group is extended about the tube in the tangential direction. The roller group is rotatably circumscribed to each leading end of the horizontal rod group and is touched about the tube in the tangential direction. |
