PACKAGING UNIT FOR CONTINUOUSLY PRODUCING SEALED PACKAGES OF POURABLE FOOD PRODUCTS FROM A TUBE OF PACKAGING MATERIAL

摘要

A packaging unit (1) for continuously producing sealed packages (2) of a pourable food product from a tube (3) of heat-seal sheet packaging material, the tube (3) being filled with the food product, and the unit having: a first and a second conveyor (10, 11) having first and second jaws (12, 13), respectively, which interact cyclically with the tube (3) to seal a number of cross sections of the tube (3); the first and second conveyor (10, 11) being driven to cause the first and second jaws (12, 13), respectively, to interact with the tube (3); the first conveyor (10) being driven by drive means (14); and the second conveyor (11) being driven solely by the first conveyor (10), by first locking means (57) on the first conveyor (10) acting on second locking means (58) on the second conveyor (11).