Machine For Packing Products In Envelopes

1). A machine for packing products in envelopes, the machine being of a type which comprises:

• folder means, supplied in inlet with a continuous sheet unwinding from a reel, which folder means form, in outlet, a continuous tubular package developing vertically from above in a downwards direction;
• means for lowering the continuous tubular package in steps corresponding to a length of envelope;
• first welding organs acting on superposed vertical edges of the continuous tubular package for closing the continuous tubular package;
• second welding organs acting transversally of the continuous tubular package in order to separate an internal volume of an envelope, underlying the second welding organs, from an internal volume of the overlying continuous tubular package, and defining a succession of the envelopes arranged in a line, proceeding in a downwards direction;
• dispensing means, activated in phase relation with the first and second welding organs, for introducing, in each of the envelopes, before closure thereof, a batched quantity of a product;
• cutting organs for separating an envelope occupying a lowest position in the line, wherein the machine it comprises:
• a first station, situated below the folder means, in which second welding organs operate, with a horizontal motion performed in phase relation with a pause of the continuous tubular package;
• a second station, underlying the first station, in which the cutting organs operate, with a horizontal motion performed in phase relation with a pause of the continuous tubular package;
• drawing organs identifying the means for descending, for gripping a lower flap of the lowest envelope in the line, at the second station, for determining a descent by a step of the line and the continuous tubular package, in phase relation with the inoperative positions of the first welding organs and the second welding organs as well as of the cutting organs.