Methods for the joint wrapping of bags with their contents, applying machine and packet of bags containing 'snack' thus obtained

摘要

Method for the joint wrapping of bags (2) containing a product in pieces, granules orpowder piled inside an elongated laminar wrapping made of termo-adherent plastic(10) and joined at its longitudinal edges (20) forming a sleeve (16) closed atits bottom (17) and at its laminar header wall with weldings, which comprises: a)making the bags laid on a conveyor (5,6) go forward; b) delivering at least a firstbag on a support (8) while welding means close the laminar wrapping determining abottom,- c) partially forming a continuous laminar wrapping closed longitudinally withthe shape of a sleeve with its bottom welded according to step b); d) pushing horizontallyat least the first bag of the support towards the opening of the tube that formsthe sleeve; e) pushing vertically causing the joint descent of the first bag andwrapping while the sleeve is closed with seams in longitudinal sense at one ofits sides; f) continuing feeding the support with bags pushing them first horizontallyon the opening of the tube that forms the sleeve and then vertically for the descentof the group until the packet is complete; and y g) closing by means of transversewelding the header laminar wall of the packet formed and separate it through acut forming at the same time the bottom of the wrapping of the next packet (23).Machine (1) to carry out the method. Method for the joint wrapping of bags containing"snack" inside a laminar wrapping made of thermo-adherent plasticwith the shape of a sleeve, machine for carrying out such method and packet of bagscontaining "snack" obtained by means of such method.