Manufacturing method using shuttle mold and overmolding

An injection molding system comprising:

• an injection molding machine for injecting a resin into a mold;
• a conveyer apparatus configured to move a mold between a first position within the injection molding machine and a second position outside the injection molding machine;
• a controller;
• and
• an inserting unit,
• wherein the improvement to the injection molding system includes:
• the controller configured to control the conveyer apparatus not to move a first mold until the injection molding machine performs N times (N≥2) of an injection process with the first mold, wherein the controller is further configured to control the conveyer apparatus to move the first mold from the first position to the second position after the N times of the injection process with the first mold such that a second mold external to the injection molding machine moves into the injection molding machine, and
• the inserting unit configured to insert one of a first molded part obtained based on the N times injection process with the first mold into the second mold such that the injection molding machine injects a resin into the second mold in which the first molded part is inserted to obtain a second molded part.