Screening-sorting knitting method and device for bamboo chips

The invention discloses a screening-sorting knitting method and device for bamboo chips. The method and the device have the functions of bamboo chip screening, defective chip removing, threading and knitting. The screening-sorting knitting method for the bamboo chips comprises the steps of feeding, sorting, screening, turn-over screening and the like. The screening-sorting knitting device for thebamboo chips comprises a lifting feeding mechanism, a centrifugal feeding disc, an output conveying belt, a recognizing and screening mechanism and the like, wherein the lifting feeding mechanism comprises a lifting conveying belt and a material box; the centrifugal feeding disc comprises a rotary material disc, a rotary ascending guide plate and a connecting output conveying belt; the recognizingand screening mechanism comprises a first conveying line, a turn-over mechanism and a second conveying line; a first light and shadow detection CCD and a second light and shadow detection CCD are arranged above a path; a ligh