Double-color mold for single-color injection molding machine

The utility model discloses a double-color mold for a single-color injection molding machine. The double-color mold comprises a first injection mold, a second injection mold and an insert, wherein thefirst injection upper mold core, the first injection lower mold core and the plurality of first injection side mold cores define a first injection accommodating cavity for accommodating an insert, and a first injection molding part is formed between the first injection accommodating cavity and the insert; wherein the insert comprises an insert part and an inserting part formed by protruding fromthe lower end of the insert part, and a first inserting hole matched with the inserting part is formed in the first injection lower mold core; the secondary injection upper mold core, the secondary injection lower mold core and the plurality of secondary injection side mold cores are encircled to form a secondary injection accommodating cavity for accommodating an insert; the secondary injection molding part is formed betw