| 摘要 |
PURPOSE:To make it possible to carry out molding under the same condition even if a plurality of cavities are different each other, by providing a means for controlling the flow quantity and a means for controlling dwelling in a resin path for each of a plurality of cavities, and carrying out the control by adjusting the above described both means in each cavity. CONSTITUTION:Flow quantity of a molten resin is set by the shapes of a cavities 3 and 4. This setting is carried out by forwarding or retreating plungers 12 and 13 controlling the flow quantities, and adjusting the gaps between the apexes of the plungers and tapered faces 10 and 11. This forwarding and retreating are easily carried out by means of nobs 24 and 25. When a molten resin is injected into a resin path 9 from an injection apparatus 30, the molten resin is filled into each cavity 3 or 4 in the set flow quantity. At the same time when filling is completed, plungers 14 and 15 for controlling dwelling are forwarded by means of oil pressure cylinders 26 and 27 and the molten resin is pressed, and keeps the dwelling pressure which has been set in the oil pressure cylinders 26 and 27 in advance. Completion of filling in the cavities 3 and 4 are easily carried out by completing the set time of a timer or detecting the inner pressure in the cavity. |
