| 摘要 |
PURPOSE: To provide an apparatus capable of preventing or reducing the vibration of the support bar for supporting a support segment even if the support segment is regulated to various diameters of a film bulb. CONSTITUTION: In an apparatus for calibrating and supporting an extruded tubular film blown up into a film bulb, the support means driven by link rods 12, 16 are provided and the inner end parts of the link rods are articulated in the median zone of each support means and the outer end parts thereof are articlated to brackets 11, 15 and screw spindles 7 are mounted on the basket-shaped frames 1, 2, 3. The screw spindles 7 are provided with threads of opposite hand screwed into spindle nuts 6 and additional link rods 16 parallel to the link rods are arranged and the respective end parts of the link rods 16 are articlated to the support bar and the bracket 15. |
