An injection molding system includes a conveyor apparatus that moves a mold, and an injection molding apparatus that performs, using an injection cylinder and a screw, injection molding with the mold, wherein the improvement of the injection molding system includes at least one structure located in proximity to at least a part of the conveyor apparatus, wherein the at least one structure includes at least one element that is moveable, and wherein, when the screw is removed from the injection cylinder, the at least one element is in a position to prevent the at least one element from contacting the screw.