Apparatus for forming, filling and closing bags

Details Apparatus for forming, filling and closing bags Apparatus for forming, filling and closing bags

1977-09-21

1978-12-19

Spruill, Robert Louis

Package making

Progressively seamed cover web or web folds

With closing of web between package units

93 18, B65B 912

Patent

active

041299760

ABSTRACT:
An apparatus for forming, filling and closing bags has a hollow mandrel on which a hose is continuously formed from a sheet; two vertically reciprocating and horizontally oppositely movable shoes underneath the mandrel for cyclically pressing together a first hose portion and providing a transverse seam thereacross as the hose and the shoes move downwardly in unison; a folding device cyclically forming bottom flaps from a second hose portion at opposite sides of the hose at the lower end of the mandrel above the first hose portion; a clamping device for firmly grasping the hose at the second hose portion and backing the bottom flaps along the entire hose cross section as it pulls the hose downwardly from the mandrel while moving simultaneously downwardly with the shoes and while the hose part that terminates at the bottom flaps is being filled with goods by gravity; and a cutting device for cutting through the transverse seam when the shoes and the clamping device have pulled the hose to a predetermined low position for severing a previously filled hose portion as a separated, sealed bag from the upstream, still coherent hose.

REFERENCES:
patent: RE27302 (1972-02-01), Schneider et al.

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