| 摘要 |
PURPOSE:To lay reliably parison to the first and second cavity surfaces in order without generating a slippage, by a method wherein one split mold is constituted of a main mold and slide core and the one split mold is constituted so that the tip part of the parison in a suspending state is held by placing between the slide core and main mold by working them cooperatively. CONSTITUTION:Prior to laying of parison 14 to one split mold 3, the one split mold 3 and the other split mold 4 are kept at a mold broken state and a slide core 6 and main mold 5 of the one split mold 3 is kept at a mold broken state. Then laying operation of the parison is started and when the tip part of the parison 14 which is extruded away by dangling from a parison extrusion die head arranged on the upper part of a side part of the first cavity surface 9 of the main mold 5 is entered into a spatial part of the lower part of the first cavity surface 9, at about the same time, the slide core 6 is set up to the split mold 3 by driving the same by an air cylinder. With this setting, after the tip part of the parison 14 is held by placing between the slide core 6 and main mold 5, blow molding is performed. |
