| 摘要 |
PURPOSE:To make production cost low and to facilitate an operation manipulation without making a mounting area of a molding machine large, by a method wherein injection nozzles whose lengths are different from each other are arranged on a T die, a plasticized material is injected through the injection nozzle and a cavity is filled with the material at one action by making nozzle touch the cavity. CONSTITUTION:The total four sets of the same molds, the set of which is composed of a male and female molds 5, 4 are placed on both sides of an intermediate movable platen 1, hot runners 17 provided on hot runner manifolds 2, 3 are ramified into T-shaped runners 7 by traversing the hot runners 17 longitudinally, a synthetic resin plasticized material is injected to each cavity 6 and the cavity 6 is filled with the same at one action by interposing a tip 8 and performing nozzle touching. As for a T die C of the tip of a barrel 9, a long and short nozzles 10, 11 are screwed to the T die C in the vertical direction of the same at fixed intervals, moved forward toward a mold clamping device along an arrow 12 and nozzle touching 13, 13' are performed. At the time of release of mold clamping, a ram 14 is moved backward up to a predetermined position along the arrow 12 at a fixed stroke and a molded article is unloaded by making the mold clamping device (a) release. When mold clamping is performed again, a molding cycle is repeated by a method wherein the nozzle touching, injection, dwell pressure application and backward movement are performed by advancing the ram 14. |
