It is understood that this device called a disposable paper products line defect detection system, saw a disposable paper cup is fed into the cup, the role of suction cup fly up in the pipe, and then through a drop cup system a stay on a circular platform, the platform turn around, the visual system "pops" to flash to shoot a picture of each cup, cup of photos and various parameters on the outside of the screen one by one, such as There are a few black spots on the paper cup, the size of a few pixels, circular curvature of the bottom of the cup of non-compliance, etc., non-compliance will be blown out of paper cups, paper cups and compliance will be as qualified products by the cup system.