Metal core for glasses legs and injection mold for glasses legs

The utility model discloses a metal core for a glasses leg and an injection mold for the glasses leg, the metal core comprises a rod body and a pulling needle, one end of the rod body is connected with the pulling needle, the other end of the rod body is connected with a positioning head, and when the positioning head and the pulling needle are limited, the rod body keeps still; the injection mold is used for injection molding of glasses legs with metal cores and comprises an upper mold and a lower mold, and an injection molding cavity is formed between the upper mold and the lower mold; the injection molding cavity comprises an upper mold cavity and a lower mold cavity; the metal core is placed in the injection molding cavity, and the pulling needle extends out of the injection mold; a positioning seat for placing the positioning head is arranged in the injection molding cavity; a separation hole for separating the pulling needle from the injection molding cavity is formed between the upper mold and the lowe