Machine for filling and closing bags of synthetic plastic materi

Details Machine for filling and closing bags of synthetic plastic materi Machine for filling and closing bags of synthetic plastic materi

1982-05-10

1985-04-16

Sipos, John

Package making

Apparatus for forming or partially forming receptacle and...

Forming by opening or setting up collapsed receptacle

53266R, 53373, 53386, 53570, B65B 910

Patent

active

045107360

ABSTRACT:
A machine for filling and closing bags of a synthetic plastic material has a lowerable filling device, a transporting band spaced from the filling device and intermittently moveable in a longitudinal direction, opening, filling and welding stations, two carriages arranged in a space between the transporting band and the filling device at a distance corresponding to a band width and moveable synchronously with the transporting band parallel to the longitudinal direction, a feeding means on the carriages and having two feeding arms which are provided with gripping plates and move in the opening station from an upper position to a medium expanding position to be inserted into a bag mouth, and after expanding the bag the filling arms with the gripping plates move further in a direction transverse to the longitudinal direction to a lower transporting position, and two pairs of grippers arranged on the carriages at both sides of the feeding device to grip bags below their mouth edges, wherein one of the pairs of grippers is a front pair and arranged to bring an empty bag to the opening station, whereas the other of the pairs of grippers is a rear pair and arranged for bring a filled bag from the filling station to the welding station.

REFERENCES:
patent: 3750721 (1973-08-01), Hudson
patent: 3903677 (1975-09-01), Bowman et al.
patent: 3948019 (1976-04-01), Doring
patent: 4108300 (1978-08-01), Hayase et al.
patent: 4172349 (1979-10-01), Lipes
patent: 4174599 (1979-11-01), Callet et al.

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