Automatic demoulding mould for producing degradable tableware

The utility model discloses an automatic demoulding mould for producing degradable tableware. The automatic demoulding mould comprises an upper mould (1) and a lower mould (11), and is characterized in that an upper heating plate (3), an upper asbestos heat insulation plate (4), an upper mould gasket (5), an upper mould movable plate (8) and an upper mould fixed plate (10) are arranged on the upper mould (1) in sequence; an upper mould convex wedge (2) is arranged at the bottom end of the upper mould (1); a lower heating plate (14), a lower asbestos heat insulation plate (15), a lower mould gasket (16) and mould legs (19) are arranged below the lower mould (11) in sequence; a copper sleeve (13) is arranged on the lower mould (11); a hollow dovetail ejector rod (23) is arranged in the copper sleeve (13); the bottom end of the hollow dovetail ejector rod (23) is connected with a pneumatic element (22); the lower part of the hollow dovetail ejector rod (23) is connected with a compressed air pipe (21); a return