| 摘要 |
The vertical form fill and seal (VFFS) machine is configured to place a fitment, such as a spout, on the longitudinal fin seal of a container. The fitment dispatched from a vibratory bowl via an adjustable track. The fitment is then secured to the edges of the film by longitudinal sealing bars and the edges of the film are likewise secured to each other by the longitudinal sealing bars thereby forming a longitudinal fin seal. Depressions are machined in the machine direction center of the sealing bars in order to accommodate the shape of the fitment. The film is drawn over an oversized collar and an undersized tube so as to create excess film in order to form gussets providing a stand-alone capability. |
