Footwear mold system for injection-molding

A mold assembly for injection molding, the mold assembly comprising:

• a first mold plate comprising a mold ring plate comprising a first mold cavity wall;
• a second mold plate interfacing with a first side of the first mold plate and comprising a second mold cavity wall;
• a first pin-receiving aperture positioned in the first side and having a pin engager;
• a second pin-receiving aperture in the second mold plate and aligned with the first pin-receiving aperture;
• a pin having a portion engaged with the pin engager and having a pin body extending along a longitudinal axis from the first pin-receiving aperture and through the second pin-receiving aperture, the pin including a stop spaced apart from the portion by the pin body;
• wherein:
• the first mold cavity wall and the second mold cavity wall enclose and define at least a portion of a mold cavity when the second mold plate is interfacing with the first side,
• the second mold plate includes one or more gates in fluid communication with the mold cavity;
• the pin, when engaged with the pin engager, prevents rotation of the first mold cavity wall relative to the second mold cavity wall;
• the stop comprises a head configured to be received in a pin-receiving aperture of a runner plate when the runner plate is coupled to the second mold plate;
• and
• when the runner plate is uncoupled from the second mold plate, the second mold plate is movable with respect to the first mold plate along the longitudinal axis between the portion and the head while the portion is engaged with the pin engager, so that the pin traverses through the second pin-receiving aperture when the second mold plate moves with respect to the first mold plate.