Green printed matter quality online detection equipment

The utility model provides a green printed matter quality on-line detection device which comprises a rack and a first conveying belt, the first conveying belt is driven by a first motor, and a detection device used for detecting and judging the quality of printed matter is arranged above the first conveying belt. A second conveying belt is arranged on one side of the output end of the first conveying belt; a roller shaft at the input end of the second conveying belt is erected on the top face of the rack through a support. Connecting plates are arranged on the two sides of the second conveyingbelt; through holes are formed in the two ends of the connecting plate and are pivoted with the roll shafts at the two ends of the second conveying belt respectively; a first portal frame is connected between the two connecting plates, the first portal frame stretches across the lower portion of the second conveying belt, a second motor for driving the second conveying belt is arranged on the bottom face of the first por