Compression mechanism of packing machine

The utility model discloses a compression mechanism of a packing machine. The packing machine comprises a packing machine shell internally provided with a compression cavity. A door capable of being opened and closed is arranged in front of the packer shell. a hydraulic device is mounted above the compression cavity; the hydraulic device consists of two hydraulic cylinders; the two hydraulic cylinders are arranged front and back; left-right cross fit, the upper end of the hydraulic cylinder body is fixedly connected with the upper end of the packer shell; the hydraulic column is connected witha compression plate structure horizontally arranged below the hydraulic cylinder; the compression plate structure comprises an upper top plate and a lower pressing plate; the hydraulic column is fixedly connected with the upper surface of the upper top plate; the lower pressing plate sequentially comprises a left pressing plate, a middle pressing plate and a right pressing plate from left to right, the left pressing plat