초록 ▼

In a horizontal form-fill-and-seal (FFS) machine, a continuous length of packaging film is folded lengthwise over the consumer products to be packaged. The lateral edges of the packaging film are separately and independently aligned with one another by edge sensing and control devices. A zipper is i

In a horizontal form-fill-and-seal (FFS) machine, a continuous length of packaging film is folded lengthwise over the consumer products to be packaged. The lateral edges of the packaging film are separately and independently aligned with one another by edge sensing and control devices. A zipper is in place or fed between the aligned lateral edges of the packaging film. The lateral edges are sealed to one another, and the zipper, if unattached, is sealed to the folded packaging film. Side seals are produced by conventional apparatus, which also separate completed packages from one another. Apparatus for driving the packaging film though the machine in a balanced and symmetrical manner are also provided.

대표청구항 ▼

[ We claim:] [1.] A horizontal form-fill-and seal (FFS) machine comprising:means for providing a continuous length of packaging film having two lateral edges;means for placing products to be packaged at intervals along one half of said continuous length of packaging film;means for folding said conti

[ We claim:] [1.] A horizontal form-fill-and seal (FFS) machine comprising:means for providing a continuous length of packaging film having two lateral edges;means for placing products to be packaged at intervals along one half of said continuous length of packaging film;means for folding said continuous length of packaging film continuously down the center thereof and over upon said products to form a first folded side and a second folded side interconnected by a folded section opposite to said lateral edges;means for aligning said lateral edges of said folded continuous length of packaging film with one another opposite said folded section;means for feeding a zipper between said aligned lateral edges of said folded continuous length of packaging film;first drive roller means for contacting and continuously driving said aligned lateral edges; second drive roller means for contacting and continuously driving said folded section;means for sealing said aligned lateral edges of said folded continuous length of packaging film to one another;means for sealing said zipper to said folded continuous length of packaging film;means for sealing said folded continuous length of packaging film crosswise at intervals between said products to create individual packages; andmeans for separating said individual packages from one another.