Method and equipment for preparing and applying folded leaflets
AssigneeG.D S.p.A.
InventorMario Spatafora
Life of this patent
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Abstract
A method of preparing and applying folded leaflets or coupons to packets in a cigarette packer includes the steps of cutting single leaflets from a continuous strip material, scoring them with transverse crease lines and then causing each one to wrap around one of a set of winding members operating in conjunction with a fixed restraint; a leading portion of the leaflet is taken up by the winding member, which is then set in rotation while also revolving in close proximity to the restraint, in such a way as to bend the leaflet along the crease lines and form a succession of folds.
Claims15
A method of preparing and applying folded leaflets in packaging machines, including:
- winding single leaflets, obtained from a strip material, around respective winding members each taking up and retaining a portion of a single leaflet while driven in rotation relative to a restraint mechanism acting on the single leaflets, to generate at least one fold in the single leaflet by bending the single leaflet around one of the respective winding members along at least one transverse crease line of the single leaflet;
- providing each of the respective winding members with a portion having a biconvex geometry;
- holding the folded single leaflet and removing the folded single leaflet from one of the respective winding members by axially withdrawing the one of the respective winding members from the folded single leaflet along a rotation axis of the one of the respective winding members.
Dependencies are inferred from the claim text.