Slitting knife assembly of slitting machine

The utility model discloses a slitting knife assembly of a slitting machine. The device is used for the non-woven fabric dividing and cutting machine and comprises a rack and an installation support arranged on the rack in the left-right direction, a first guide rail is arranged on the rack in the front-back direction, and the installation support is slidably connected to the first guide rail through a first sliding base and driven by a first power mechanism to slide front and back along the first guide rail; a second guide rail is arranged on the mounting bracket in the left-right direction;the second guide rail is slidably connected with a plurality of second sliding seats, the second sliding seats are locked through first locking screws, a cutter mounting seat is arranged at the upperend of each second sliding seat, a mounting groove is formed in the forward end of each cutter mounting seat, a rectangular blade is fixed in each mounting groove through a fastening screw, and the upper long edge and the lowe