| 摘要 |
PURPOSE:To reduce the holding period of an injection apparatus itself as to improve the production capacity of a molding machine, by providing more than one clamping device for one injection apparatus. CONSTITUTION:A mold selection driving apparatus 9 selects a mold wherein the preparation for injection is being completed, and the mold and an injection apparatus 6 are driven to be brought closer together. When a first clamping device 4 completes the preparation for injection, the mold selection driving apparatus 9 is rotated to align the tip of an injection cylinder 10 with a sprue of a first mold 2 and injection is carried out. Then during or before the cooling step of the first mold 2, a second mold 3 is closed. Then the mold selection driving apparatus 9 is rotated counterclockwise and at the second mold 3, injection is carried out in a similar manner. Thus, by using one injection apparatus a fluidized plastic can be injected successively into two or more molds under high pressures. |
