Forming member for forming sealed packages of pourable food products from a tube of packaging material

摘要

There is described a forming member (20a) for controlling the volume of packs (3) of pourable food products formed from a tube (2) of packaging material and sealed at a number of sections of tube (2) crosswise to an axis (A) of tube (2), comprising: a wall (25a) comprising, in turn, a first surface (80a) which is adapted to interact with a first portion (35a) of tube (2); and a pair of sidewalls (26a) protruding from wall (25a) on the same side of wall (25a), and comprising respective second surfaces (81a) which are adapted to interact with relative second portions (35b) of tube (2); first surface (80a) is at least partially concave.