Envolvedora de flujo vertical y método para producir una bolsa

La invención se refiere a mejoras de una enfardadora vertical para producir bolsas tubulares a partir de una banda de película con medios de recierre y la bolsa correspondiente. (Traducción automática con Google Translate, sin valor legal) A vertical flow-wrapper that includes a form-fill-tube along which a film is transported in a transport direction and formed into a film tube; a longitudinal-sealing means, which seals two opposing longitudinal ends of the film tube together to form a longitudinal seal, the longitudinal-sealing means includes a seal jaw and a pair of guiding rollers provided upstream from the seal jaw to guide the two opposing longitudinal ends of the film tube through the seal jaw and pressing means to press the two opposing longitudinal ends of the film tube together; and a cross-sealing means and a cutting means which provide cross seals to each package and separate the packages from each other; an axis of rotation of the pair of guiding rollers are provided parallel to a transportation plane of the two opposing longitudinal ends of the formed film and not perpendicular to the transport direction.