Molding apparatus

A molding apparatus comprising:

• a plurality of mold sets including at least a first mold set and a second mold set, each of the first and second mold sets including a fixed metal mold and a movable metal mold that are each heated to a necessary temperature for curing a molding material and are coupled together by mold clamping so as to define a cavity;
• a non-heated cold runner which supplies the molding material from an injection device into the cavity via a gate provided in the movable metal mold;
• an injection station in which the injection device and the cold runner exist;
• and
• a mold opening station which is in the vicinity of the injection station and opens the fixed metal mold and the movable metal mold,
• wherein the first and second mold sets are movable between the injection station and the mold opening station such that, when the first mold set is in the injection station, the non-heated cold runner is moved downward to communicate with the movable metal mold of the first mold set to provide the molding material into the gate and into the cavity of the first mold set, while the fixed metal mold and the movable metal mold of the second mold set are positioned in the mold opening station,
• wherein a product molded within the cavity and a burr molded within the movable metal mold in the injection stage are separated by mold opening in the mold opening station.