Continuing from the tube which was made the airtightness package with the packaging material, the sterile airtightness package which stores

摘要

A packaging unit (1) for continuously producing aseptic sealed packages (2), containing a pourable food product, from a tube (14) of packaging material filled with the food product; the unit (1) has a first and second chain conveyor (10, 11) respectively having a number of jaws (12) and a number of counter-jaws (13), which interact with and grip the tube (14) to heat-seal cross sections of the tube; and the chain conveyors (10, 11) also have half shell elements (38) for controlling the volume of the packages (2), and which are connected to respective jaws (12) and counter-jaws (13) and cooperate with a relative cam (44) for controlling the relative movement of the half shell elements to and from the supply path (A) of the tube (14) of packaging material. IMAGE