Belt feeding and threading device applied to full-automatic packing machine

The utility model discloses a tape feeding and threading device applied to a full-automatic packing machine. The tape feeding and threading device comprises a material guide roller and a tape feeding conveying group, the upper guide plate and the lower guide plate are arranged between the material guide roller and the belt feeding conveying wheel set; a belt passing gap is formed between the upper guide plate and the lower guide plate; the belt feeding conveying wheel set comprises a driving wheel driven by a driving motor and a driven wheel making contact with the driving wheel. A tape threading gap is formed between the driving wheel and the driven wheel; the material guide roller, the belt passing gap and the belt penetrating gap are matched to form a belt feeding line, and the material guide roller, the belt passing gap and the belt penetrating gap are matched to form the belt feeding line; the packing belt is effectively restrained in the belt feeding and machining process, and stable belt feeding and ma