The fully automatic cone tube machine is used to process metal circular tubes into conical tubes, and fully automated operation of molds. It has the characteristics of low noise, easy operation, high output, and stable performance. The workpiece has a short forming time, high efficiency, smooth processing surface, and easy replacement of machine molds. With the corresponding mold coordination, it can process metal pipes of different shapes to meet different needs. It is suitable for forming taper of pipe ends in pipe joints such as automobiles, furniture, lighting, and water pipes