Ultra-large type barrel winding forming die

The utility model discloses an ultra-large type barrel winding forming die which comprises a mandrel, shell plate flanges are arranged at the two ends of the mandrel, a shell plate is connected between the two shell plate flanges, a plurality of supporting mechanisms are arranged between the shell plate and the mandrel, the shell plate is in a split type, and the shell plate is in a split type. And the adjacent shell plates are fixed through a connecting plate. The split type cast aluminum shell plates are adopted as the shell plates, the shell plates are connected through the connecting plates, the shell plates are staggered in the front-back direction during installation, and the anti-compression capacity and the anti-torsion capacity of the whole shell plates are improved; a supportingmechanism is mounted between the shell plate and the core shaft, so that winding forming of a large-length and large-diameter barrel is realized; and the middle section of the mandrel is not integrally machined, and only a we