device for feeding a continuous sheet of a packaging material, unit for applying a plurality of opening devices in their respective areas, methods for feeding a continuous sheet of a packaging material and for applying a plurality of opening devices in their respective areas, and software product

摘要

device for feeding a continuous sheet of a packaging material, unit for applying a plurality of opening devices in their respective areas, methods for feeding a continuous sheet of a packaging material and for applying a plurality of opening devices in their respective areas, and , software product. a device (10) for feeding a web (3) of a packaging material along a path (p) and to an application station (26) is described; the packaging material comprises a plurality of pre-rolled holes to which the application station (26) applies respective opening devices (4); the device (10) comprises advancing means (11, 12) for advancing said web (3) along a first direction (a) parallel to the path (p); a sensor (15) for generating a plurality of measurement signals (m1, m2, m3) associated with pre-rolled hole positions; and a first motor (14) controllable based on measurement signals (m1, m2, m3), the first motor (14) is operatively connected to feed means (11,12) to move feed means (11,12) along a second transverse direction (t) the trajectory (p).