Manufacturing method and injection molding system

A method for manufacturing a molded part by an injection molding machine while alternating between multiple molds, the method comprising:

• a first ejecting step of opening a first mold in the injection molding machine and ejecting the molded part from the first mold;
• a checking step of checking the molded part, ejected in the first ejecting step, to determine if the molded part is an acceptable part;
• a first injecting step of closing the first mold and performing injection into the first mold;
• a first changing step of changing the first mold in the injection molding machine to a second mold;
• a second ejecting step of, in a case where the molded part ejected in the first ejecting step is an acceptable part, that includes a second injecting step of closing the second mold and performing injection into the second mold, and ejecting another molded part from the second mold after the first changing step;
• and
• a second changing step of, in a case where the molded part ejected in the first ejecting step is a non-acceptable part, not ejecting the another molded part from the second mold, and changing the second mold in the injection molding machine to the first mold.

A method for manufacturing a molded part by an injection molding machine while changing between multiple molds, the method comprising:

• a first injection step for injecting material into a first mold positioned at a molding operation position of the injection molding machine;
• a first ejecting step for ejecting, from the first mold, a molded part created from the material injected in the first injecting step;
• a second injection step for injecting material into the first mold;
• a determination step for determining if the molded part ejected in the first ejecting step is a non-acceptable part;
• a second ejecting step for ejecting from the first mold a molded part created from the material injected in the second injecting step;
• a first changing step, performed after the determination step and before the second ejecting step, for conveying the first mold from the molding operation position and conveying a second mold into the molding operation position;
• and
• a second changing step of, in a case where the molded part ejected in the first ejecting step is a non-acceptable part, not ejecting another molded part from the second mold, and changing the second mold in the injection molding machine to the first mold,
• wherein the second mold is different from the first mold, and
• wherein the injection molding machine comprises a camera and the determining in the determination step is performed via an image of the molded part captured by the camera.