Printing trimming waste recovery mechanism

The printing trimming waste recycling mechanism comprises a concentration box installed on a rack, the concentration box is arranged towards an opening of a trimming mechanism, and a conveying assembly used for conveying trimming waste is installed in the concentration box; the conveying assembly comprises a plurality of rotary drums rotationally connected to the inner wall of the concentration box, a conveying belt arranged around the multiple rotary drums and a driving part used for driving the rotary drums to rotate, and further comprises a collecting box used for collecting trimming waste. The concentrating box is provided with a conveying pipe used for conveying trimming waste into the collecting box, one end of the conveying pipe communicates with the concentrating box and faces an opening of the discharging end of the conveying belt, and the other end of the conveying pipe communicates with the collecting box. The collecting box is provided with an air draft piece used for driving the trimming waste in