| 摘要 |
PROBLEM TO BE SOLVED: To provide a wire-insert injection molding method by which a product free from wire deformation and wire positional deviation from an axial center can be molded with high precision, when a molding having a fine wire embedded in the axial direction of the molding is obtained by injection molding as well as a mold for injection molding used in the method. SOLUTION: A fine straight wire D protected by a sleeve 12 is set in a cavity 5 space to be formed by clamping a fixed half 3 and a movable half 4 of a mold for injection molding, and a molding A is injection-molded with the wire D inserted by filling the cavity 5 with resin. In this case, only the sleeve 12 is moved backward from the interior of the cavity 5, synchronized with a resin filling action to leave the wire D as it is in the resin and thus the wire D is inserted without fear about the deformation of the wire D by resin pressure or the deterioration of its coaxiality.
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