Injection molding device convenient for plastic engraving

The injection molding device comprises a lower mold, a clamping groove and an overflow groove, an upper mold is arranged above the lower mold, a guide rod is fixed to one side of the upper portion of the lower mold, a through hole is reserved in the upper mold, a cooling pipe is installed in the lower mold, a condenser is arranged below the cooling pipe, and the cooling pipe is connected with the overflow groove. And a movable plate is arranged on the inner side of the cooling pipe, a movable block is installed in the movable plate, a clamping block is fixed to one side of the movable plate, a movable groove is reserved in the upper portion of the interior of the lower die, a limiting rod is installed in the movable groove, a driving gear is arranged on one side of the limiting rod, and a driven gear is installed on one side of the driving gear. According to the injection molding device facilitating plastic engraving, when different icons are engraved, the different icons can be engraved only by replacing the