Abstract: An apparatus for feeding tubular blanks to a packaging machine includes a collecting group (10) provided with a first gripping member (11), suitable to grip single flat-folded tubular blanks (2) at a first face, and an opening group (20) provided with a second gripping member (21), suitable to grip the blanks (2) at a second face. The collecting group (10) includes a drive mechanism (12, 15) provided with a first arm (12) tilting under control of motor members (5), and with a second arm (15), carrying the first gripping member (11), which is mounted tilting on the first arm (12), and which is axially slidable for imparting to the first gripping means (11) an alternated rototranslation motion. The opening group (20) includes support a structure (22) of the second gripping means (21) pivoted on said second arm (15) of the collecting group (10) and constrained to a pulling means (25).

Abstract: The apparatus for feeding tubular blanks to a packaging machine comprises a collecting group (10) provided with first gripping means (11), suitable to grip single flat-folded tubular blanks (2) at a first face, and an opening group (20) provided with second gripping means (21), suitable to grip said blanks (2) at a second face. The collecting group (10) comprises a drive mechanism (12, 15) provided with a first arm (12) tilting under control of motor members (5), and with a second arm (15), carrying said first gripping means (11), which is mounted tilting on said first arm (12), and which is axially slidable for imparting to said first gripping means (11) an alternated rototranslation motion.