| 摘要 |
A closing unit for an injection molding machine for making several injecti on molded articles in one working cycle includes a fixed mold portion and a movable mold portion which is movable by a drive mechanism in a direction of the fixed mold portion. The fixed and movable maid portions bound a mold cavity, when the movable mold portion is forced by the drive mechanism against the fixed mold portion and held in piece in a clamped position by a clamping for ce applied by the drive mechanism. A separator assembly subdivides the mold. cavity into at least two distinct cavity zones, with each cavity zone Including sub- cavities. Injection molding material is supplied through a single sprue via separate feed channels to the cavity zones, wherein a valve assembly is disposed in the sprue to control the supply of injection molding material to the cavity zones via the feed channels in time-staggered manner, when the mold portions assume their clamped position.
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