Inner cavity glazing machine

The utility model discloses an inner cavity glazing machine which comprises a material clamping device, the material clamping device comprises a reversing shaft and a clamping piece, the reversing shaft extends in the left-right direction, the clamping piece is synchronously connected to the reversing shaft, the front side and the rear side of the material clamping device are provided with an avoiding space and a material clamping space respectively, and an opening of the clamping piece faces the material clamping space. The reversing shaft can rotate in a reciprocating mode and drive the clamping piece to overturn between the avoiding space and the material clamping space in a reciprocating mode. The material lifting device comprises a material sucking piece capable of moving up and down, and the material sucking piece faces downwards and directly faces the avoiding space; the glaze supply device comprises a glaze spraying piece with an upward nozzle, and the glaze spraying piece is located on the front side