Splitting machine applied to packaging bags

The invention relates to the field of slitting of packaging bags, in particular to a slitting machine applied to packaging bags, which comprises a plurality of conveying rollers for forming a conveying path for guiding a packaging film to continuously move; a guide mechanism is arranged in the transportation path, the guide mechanism is provided with a guide part for guiding the packaging film to coincide with the transportation path and a folding part formed on the guide part, and the supporting part locally supports the packaging film, so that one side area, serving as a folding surface, of the packaging film naturally falls in a suspended posture; the folding part extends to the front of the folding surface along the transportation direction, and the subsequent folding surface is transported backwards in a folding manner after touching the folding part. The guiding mechanism comprises the first transmission roller for guiding the packaging bag to form the folding face and the folding part for folding the f