Pipeline water-cooling shaping device

The utility model relates to the field of plastic extrusion. The utility model relates to a pipeline water-cooling shaping device. The device comprises a cooling water tank, the cooling water tank isprovided with a sizing sleeve and a roundness correction device, the sizing sleeve is arranged in the middle of one side of the cooling water tank, the roundness correction device is arranged in the middle of the other side of the cooling water tank, and the center of the roundness correction device and the center of the sizing sleeve are located on the same horizontal line; the rounding device comprises a clamping mechanism and a fixed circular ring, and one side of the fixed circular ring is fixedly mounted on the cooling water tank; the clamping mechanism penetrates through the wall surfaceof the fixed circular ring, one end of the clamping mechanism is located in the fixed circular ring, and the other end of the clamping mechanism is located outside the fixed circular ring; the numberof the clamping mechanisms