Funnel-shaped necking-down heating and heat preservation easily-cut dead head

The utility model discloses a funnel-shaped necking-down heating and heat preservation easily-cut dead head. The funnel-shaped necking-down heating and heat preservation easily-cut dead head is composed of a dead head body and an easily-cut piece, wherein the lower part of the dead head body is in a funnel-shaped necking-down structure; and the diameter of the easily-cut piece is matched with the outer diameter of the lower end of the dead head body. On the basis of an existing heating and heat preservation easily-cut dead head, the lower part of the dead head body is designed to be of the funnel-shaped necking-down structure, so that the outer diameter of the easily-cut piece is reduced, and the easily-cut piece can be put on a casting partial structure smaller than the size of the dead head body on the basis that the modulus or a hot spot of the dead head keeps unchanged, and furthermore, a casting feeding function is realized; and the modeling quality is guaranteed and the casting density is guaranteed. The funnel-shaped necking-down heating and heat preservation easily-cut dead head is applicable to the application that the partial areas of a plurality types of steel castings are small and need to be fed; and the flexibility of a casting process design is explored, and the effect that a common heat preservation easily-cut dead head cannot be fed can be realized.