| 摘要 |
A mold apparatus for injection molding of the invention comprises: a fixed bush that is sliding fitted to a fixed side template formed with a cavity, via an inclined surface, so as to be movable with respect to each other in mold opening and clamping directions; and a movable bush that is sliding fitted to a movable mold stripper via an inclined surface, so as to be movable with respect to each other in mold opening and clamping directions. A plurality of air blowing circuits are formed in the fixed bush and the movable bush, and at the time of mold opening, a small gap is formed between the inclined surfaces, and air (warm air) is blown from the small gap towards an extension portion of a molded product so as to give mold release. High quality injection molded products can be molded with high productivity and yield, without using any hazardous mold release agents at all.
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