Spinning manifold with constant temperature function

The spinning manifold with the constant-temperature function comprises a constant-temperature preheating box, a box body and a circulating pump, an overflow box is welded to one side of the inner wall of the constant-temperature preheating box, a heating rod is arranged in the overflow box, a threaded block is fixedly installed at one end of the heating rod, and the threaded block is connected with the box body. A rotating block is fixedly installed on the surface of the side, away from the heating rod, of the threaded block, and the threaded block is in threaded connection with the constant-temperature preheating box. According to the utility model, the heat preservation sleeves are arranged on the surfaces of the water inlet pipe and the water return pipe, so that a heat preservation effect can be achieved in a water circulation flowing process, heat loss is reduced, energy consumed in a water constant-temperature preheating process is reduced, and more energy is saved; and secondly, the heat preservation s