Online wet edge cutting device for net part

The utility model discloses an on-line wet edge cutting device for a net part. The on-line wet edge cutting device comprises a lifting mechanism, a knife rest cross beam and a pneumatic circular knife device, the lifting mechanisms are mounted on the supporting cross beams on the two sides of the net part; the knife rest cross beam is arranged above the net part dewatering roller, two ends of the knife rest cross beam are connected with the lifting mechanism, and the knife rest cross beam is driven by the lifting mechanism to linearly move up and down; the two sets of pneumatic circular knife devices are installed at the left end and the right end of the knife rest beam respectively, each pneumatic circular knife device comprises a pneumatic knife rest and a circular knife, and the circular knives are driven by the pneumatic knife rests to rotate or be separated from the dewatering roller in a tangent mode. According to the utility model, by utilizing the existing net part dewatering roller, the pneumatic cir