Ejection structure of flange mold

The utility model discloses an ejection structure of a flange mold. The ejection structure comprises a flange mold body, a top cover and a prefabricated groove, the control box is arranged to start the transmission demolding assembly, so that the transmission demolding assembly conveniently demolds grinding tool materials needing to be demolded, and when demolding is not conducted, the push sealing assembly can be started through the control box, so that the sealing effect of the transmission demolding assembly is improved through the push sealing assembly; the problems that when an existing flange mold is subjected to ejection demolding, demolding is carried out in a pushing ejection and round pipe rotation driving mode, only the inner side of the flange mold can be subjected to rotary demolding when a round pipe rotates, and the outer side of a flange plate cannot effectively rotate in the rotating process, so that demolding is difficult are solved. The problems that a round pipe needs to rotate for a certa