Press type clamp cutter device for unsealing tea packaging bag

The utility model discloses a press type clamp cutter device for unsealing a tea packaging bag, which comprises a lower cutter piece, an upper cutter piece is arranged above the lower cutter piece, one end of the lower cutter piece and one end of the upper cutter piece are attached and fixed, and a shear shaft vertically penetrates through the other end of the lower cutter piece and the other end of the upper cutter piece. A self-service lubricating mechanism is installed on the outer surface of the side, close to the shear shaft, of the lower cutter piece and comprises a lubricating box fixed to the outer surface of the lower cutter piece, the interior of the lubricating box is hollow and is provided with a lubricating cavity, and a first lubricating sponge and a second lubricating sponge are fixedly bonded to the upper cavity wall and the lower cavity wall of the lubricating cavity correspondingly. The first lubricating sponge and the second lubricating sponge are both filled with lubricating oil, a moving