Resin molding method and apparatus

A resin molding apparatus in which molten resin (4) is fed from a resin supply portion (1) into a plurality of cavities (3) through a sprue portion (2A) and a plurality of runner portions (2B) branched from said sprue portion (2A) for molding the resin, said apparatus comprising:

• a resin return member (5) disposed movably through said sprue portion (2A) for returning a waste molded resin (6) kept under at least one of a molten and a solid condition within said sprue portion (2A) back into said resin supply portion (1) by a heat of said resin supply portion (1) when said resin return member (5) is projected into said sprue portion (2A) and moved through said sprue portion (2A) toward said resin supply portion (1), said resin return member (5) being movable for returning back toward said resin supply portion (1), after the molten resin (4) has been fed into said cavities (3) and the molded resin within said cavities (3) has been solidified;
• and
• ejector rods (10A) movably provided for projecting into said cavities (3) and discharging the molded article (8) from said cavities (3) under the condition that a mold die (7) is moved away from an associated mold die to open the cavities (3) after the molded article (8) held within said cavities (3) has been solidified, said ejector rods (10A) being projected from an ejector plate (10B) so that said ejector rods (10A) are moved with a movement of said ejector pate (10B);
• wherein one of said resin return member (5) and a movable rod for pushing the resin return member (5) extends through said ejector plate (10B), and a common drive source is provided for controlling and driving together said ejector plate (10B) and said resin return member (5) and said movable rod for pushing the resin return member (5), respectively.