Apparatus for maintaining constant the weight of article stacks

Details Apparatus for maintaining constant the weight of article stacks Apparatus for maintaining constant the weight of article stacks

1978-11-16

1980-07-01

Culver, Horace M.

Package making

With means responsive to a sensed condition

Of individual contents or group feed or delivery

53504, 53532, 53542, B65B 5700, B65B 5720

Patent

active

042099609

ABSTRACT:
An article packing system includes a first conveyor for advancing a series of flat articles; at least two stack-forming devices for consecutively forming stacks of variable length from the articles received from the first conveyor; a second conveyor extending from the stack-forming devices for carrying away the stacks; a packing machine for packaging the article stacks received from the second conveyor and a scale for weighing the stacks of articles. The scale is in the conveying path of the second conveyor and is located downstream of the stack-forming devices and upstream of the packing machine as viewed in the direction of article advance on the second conveyor. The latter includes a mechanism for successively advancing the article stacks from the stack-forming devices towards the scale in a direction parallel to the plane of the flat articles. Further, the mechanism sequentially introduces the article stacks into the scale and subsequently advances them from the scale to the packing machine. The scale is operatively connected with the stack-forming devices for varying the length of the stacks in the stack-forming devices as a function of the stack weight measured by the scale.

REFERENCES:
patent: 3562775 (1968-05-01), Mullins
patent: 3811549 (1974-05-01), Preisig
patent: 3988875 (1976-11-01), Fay
patent: 4065911 (1978-01-01), Fagan
patent: 4098392 (1978-07-01), Greene
patent: 4136504 (1979-01-01), Wyslotsky

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