Device for applying glue to wrapper sheets, especially cold glue, in cigarettes packaging machines or the like

摘要

A device for applying glue to wrapper sheets, especially cold glue, in cigarette packaging machines or the like, includes a device (7) for conveying a succession of wrapper sheets (1) through a glue application station in which devices (10) are provided for picking up the glue from a box (9) and applying it to at least certain predetermined areas (201, 301) of the wrapper sheets (1). The glue pick-up/applicator means (10) are brought (14, 15) into contact with the wrapper sheet (1), that is with the corresponding predetermined areas (201, 301) in a punching or touching movement and can move (14, 15), transversely to the surface of the wrapper sheet (1), between an active position of glue application in which the devices (10') are in contact with the predetermined application area (201, 301) of the wrapper sheet (1) and an inactive position in which the pick-up/applicator devices (10) are withdrawn a predetermined distance from it.