Anti-loosening and pressure-stabilizing cutting mechanism for cup mouth of hollow plastic cup

The utility model belongs to the technical field of automation equipment, and particularly relates to an anti-loosening pressure-stabilizing cutting mechanism for a cup mouth of a hollow plastic cup.The cutting device comprises a cutting base, a multifunctional mounting disc is rotatably arranged on the cutting base, and cup opening inner wall abutting blocks are arranged on the multifunctional mounting disc. The multifunctional mounting disc is further provided with a cup opening pressure stabilizing cutting assembly which can linearly reciprocate along the abutting block close to or away from the inner wall of the cup opening. The multifunctional mounting disc, the cup mouth inner wall abutting block and the cup mouth pressure stabilizing cutting assembly are arranged, so that the cup mouth inner wall abutting block abuts against the inner wall of the hollow plastic cup, at the moment, the cup mouth pressure stabilizing cutting assembly is close to one end of the hollow plastic cup,and under the condition t