PROCEDIMIENTO PARA PARAR Y ARRANCAR UNA MAQUINA PARA ENVOLVER AUTOMATICA DURANTE UN CAMBIO DE PRODUCTO.

摘要

A method for stopping and restarting an automatic machine (1) for wrapping products (2), in particular rolls of toilet or kitchen paper, in a collective pack (3) using a packaging film (4a) unwound from a first reel (31a), comprises the following automatic sequence of steps: reducing the speed of the machine (1); and stopping the feeding of the products (2) and of the film (4a) at suitably synchronised intervals from each other relative to the processing of the products (2); the method subsequently comprising the steps of: substituting the first reel (31a) of the film (4a) with a second reel (31b); loading the film (4b) on the second reel into feed means (33, 34) ; restarting the machine (1) at reduced speed and thereby automatically activating the following sequence of steps: unwinding and positionally centring the film (4b); and restarting the feeding of the products (2) and of the film (4a) at suitably synchronised intervals from each other relative to the products (2). IMAGE