| 摘要 |
PURPOSE:To obtain simultaneously a pair of symmetrical left-and-right large size flat type molds. CONSTITUTION:A parison 5 is retained in a pair of molds 6R, 6L having left- and-right symmetrical cavities 19R, 19L while pressurized fluid is blown into the parison 5 through blow nozzles 21R, 21L, which are established from lower part to upper part between the molds 6R, 6L. At least a pair of blow nozzles 21R, 21L is established symmetrically and the pressurized fluid, blown out of the blow ports 24R, 24L of the blow nozzles 21R, 21L, is blown against the cavities 19R, 19L opposed to the blow ports 24R, 24L. |
