Wheel hub molding and casting die and preparation process thereof

A wheel hub molding and casting die, comprising:

• a casting die shell, a supporting bottom plate, a limiting bottom plate, a lifting module, a module supporting plate, a lower die, an upper die and removable plates, wherein
• the supporting bottom plate is tightly mounted on a lower surface of the casting die shell;
• the limiting bottom plate is arranged below the supporting bottom plate, and is used to support and limit the casting die shell and the supporting bottom plate;
• a molding cavity is formed in a middle part of an upper surface of the casting die shell;
• a lower end of the lifting module is mounted at a middle position of a bottom of the molding cavity;
• an upper end of the lifting module is mounted at a middle part of a lower surface of the module supporting plate;
• the module supporting plate is movably arranged in the molding cavity;
• and the lifting module is used to push the module supporting plate to move;
• both the lower die and the upper die are of detachable structures;
• the lower die is mounted at a middle part of an upper surface of the module supporting plate;
• the upper die is arranged on an outer side of the lower die in a sleeving manner;
• an outer wall of the lower die and an inner wall of the upper die are closed to form a pouring cavity;
• a plurality of pouring holes passing through the pouring cavity are formed in an upper surface of the upper die;
• and annular slots are formed in an outer side wall of the upper die;
• a plurality of removable plate slots communicating with the molding cavity are formed in the upper surface of the casting die shell;
• the removable plates are arranged on the removable plate slots in a movably limited manner;
• and the removable plates are fitted with the annular slots, and are used to remove the upper die after a pouring is completed.