The invention relates to the field of
ceramic preparation processes, in particular to a preparation process of an integrated ring foot sharp blank cup, a blank drawing circular truncated cone is used for drawing and positioning a blank, and due to the fact that the blank drawing circular truncated cone occupies the space in a ring foot, the
workload of a ring foot sharp blank in the later period can be reduced; the throwing circular truncated cone made of the
gypsum material is beneficial to separation of the throwing circular truncated cone and the
green body after being dried, the phenomenon of adhesion of the
green body is avoided, and the cone-shaped throwing circular truncated cone is also beneficial to separation of the
green body and the throwing circular truncated cone; the throwing circular truncated cone and the blank body can be conveniently separated from the throwing rotary table through the blank lifting opening; vacuum adsorption is carried out on a fine trimming body
round table, positioning during fine trimming is facilitated, the centers of fine trimming are consistent,
vertical jumping is avoided, and the notch defect caused by
jumping is avoided; the opening of the green body is not necked down and is smaller than other parts of the inner cavity of the green body, downward pressure and tensile force are generated on the green body through the expanded air bag, and the green body can be transversely and vertically positioned in cooperation with the positioning ring, so that the precision of the fine trimming is improved, and the notch defect caused by vertical or horizontal
jumping is avoided.