Automatic packaging device and engraving system for unearthed cultural relics

The automatic packaging device comprises a packaging box, a packaging block is arranged in the packaging box, a protection mechanism is arranged between the packaging box and the packaging block, a containing groove, a mounting groove and a sealing groove are formed in the packaging block, a sealing mechanism is arranged in the sealing groove, a blocking mechanism is arranged at the top of the sealing mechanism, and a driving mechanism is arranged in the mounting groove. The sealing mechanism is used for blocking the packaging block and guiding water flow permeating into the packaging block to flow; the blocking mechanism is used together with the driving mechanism and used for controlling blocking of the packaging box and the packaging block in multiple modes. By means of the control motor, the top cover can automatically move upwards or downwards to block or open a packaging box and a packaging block, automation is achieved, meanwhile, the design of manual operation is combined, the function that the top co