Method and apparatus for opening and stacking bags

Details Method and apparatus for opening and stacking bags Method and apparatus for opening and stacking bags

1977-08-23

1978-12-05

Bell, Houston S.

Fluent material handling, with receiver or receiver coacting mea

Processes

Battery grid pasting

141 10, 141 68, 141114, 141166, 141171, 53573, B65B 104

Patent

active

041281160

ABSTRACT:
A process for opening the valves of valved bags and for inserting the opened bags on spigots to fill the bags with bulk material, comprises the following steps: consecutively advancing the bags in a substantially horizontal plane towards the spigots, while the bag valve is oriented in the advancing direction of the bags and guiding each bag by a free edge of the bag top; pivoting, during the advancing step, the top of each bag about a top fold line from a horizontal orientation, in which it is substantially coplanar with the bag body, into a predetermined inclined position; pivoting, subsequent to the preceding pivoting step, that half of the bag top which is oriented towards the bag body, about the top fold line, into a predetermined inclined position with respect to the bag body, whereby the bag top assumes an inverted V configuration; pivoting, subsequent to the preceding pivoting step, the bag body downwardly into a vertical orientation; raising, subsequent to the preceding pivoting step, at least the valve-containing portion of the bag relative to the bag body for opening the valve while holding the bag body; and inserting, subsequent to the raising step, the bag on the respective spigot.

REFERENCES:
patent: 3579957 (1971-05-01), Mills et al.
patent: 3619981 (1971-11-01), Burke et al.
patent: 3715858 (1973-02-01), Durant et al.
patent: 3830038 (1974-08-01), Prodst
patent: 3884278 (1975-05-01), Nakashima
patent: 3949536 (1976-04-01), Chevalier
patent: 4030528 (1977-06-01), Horning

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