Flat-bottom diamond raw material forming device

The invention discloses a flat-bottom diamond raw material forming device, and relates to the technical field of imitation diamond production. The flat-bottom diamond raw material forming device solves the problem that an existing vacuum forming plate blank is hard to demold after forming. The flat-bottom diamond raw material forming device comprises a vacuum forming roller. A plurality of forminggrooves are uniformly formed in the lateral wall of the vacuum forming roller. The shape of the forming groove is matched with the shape of the flat-bottom diamond. A first airflow channel is formedat the axial of the vacuum forming roller. Ventilation holes communicating with the first airflow channel are formed in the inner ends of the forming grooves. The vacuum forming plate is replaced withthe vacuum forming roller, the first airflow channel is arranged in the vacuum forming roller, during air exhausting, the air flowing space is small, and therefore energy consumption is reduced and energy is saved. The device