Automatic screening equipment for copper-clad plate prepregs

The utility model discloses automatic screening equipment for copper-clad plate prepregs. The automatic screening equipment comprises a conveying belt assembly. A prepreg is placed on a conveying belt and conveyed to the position below a CCD camera in a screening room through the conveying belt, images are collected through the CCD camera and transmitted into a control console to be compared, and when the number or size of cracks and foreign matter exceeds a set range, the product is an NG product. When the prepreg is detected to be a defective product, the prepreg is conveyed backwards to the position below a vacuum adsorption disc in a mechanical arm, a silica gel suction disc is attached to the prepreg through the mechanical arm, then a vacuum pump works, adsorption operation is completed, the prepreg is lifted and moved to a defective product collecting position, and sorting operation is completed; the mechanical arm moves the prepreg to the position above the second CCD camera, the back face is detected