| 摘要 |
A forming member (20) for controlling the volume of packages (3) of pourable food products formed from a tube (2) of packaging material and sealed at a number of sections of the tube (2) crosswise to an axis (A) of the tube (2); the forming member (20) having : a main wall (25) which cooperates cyclically with a first portion (35) of the tube (2) extending between two consecutive sections; and at least one flap (26) extending alongside the wall (25). The flap (26) is movable, with respect to the wall (25), between a first position, in which it cooperates with a second portion (36) of the tube (2), extending between the two consecutive sections, to control the volume, between the two consecutive sections, of the package (3) being formed, and a second position, in which it is detached from the second portion (36). |
