Synchronous belt mold convenient to disassemble and assemble

The utility model relates to the technical field of synchronous belt dies, and discloses a synchronous belt die convenient to disassemble and assemble, which comprises a left flange plate, a coupler, a right flange plate and a synchronous belt die, the left flange plate is fixed on the right side of the coupler, and a sleeve is arranged on one side of the right side of the outside of the right flange plate inside the synchronous belt die. Limiting structures are arranged on the upper side and the lower side of the left end and the right end in the sleeve correspondingly, each limiting structure comprises a first inner cavity formed in the sleeve, a sliding disc is installed in each first inner cavity, a first inserting rod is installed on one side of the outer portion of each sliding disc, and a first inserting hole is formed in the side, close to the corresponding first inserting rod, in the synchronous belt mold. And pulleys are rotationally mounted on the sides, deviating from the first inserting rods, of