Winding drum of hot coiling furnace

The utility model relates to a hot coiling furnace coiling block which comprises a coiling block body, a long-strip-shaped notch is formed in the coiling block body in the axial direction, end plates are arranged at the two ends of the coiling block body, connecting flanges are installed on the end plates, and the coiling block body is formed by a left half coiling block and a right half coiling block in a butt joint mode. A plurality of butt joint inserting grooves are formed in the butt joint ends of the left half winding drum and the right half winding drum in the circumferential direction, and the left half winding drum and the right half winding drum are fixed together in a welded mode after being in butt joint through the butt joint inserting grooves. According to the utility model, enterprises are helped to produce large-scale winding drums by using steel plates with existing specifications, purchasing of foreign winding drums which are integrally cast and molded is avoided, the problem of neck clampin