High speed machine for inserting sheets into envelopes

Details High speed machine for inserting sheets into envelopes High speed machine for inserting sheets into envelopes

1999-02-16

2000-12-26

Sipos, John

Package making

Apparatus for forming or partially forming receptacle and...

Forming by opening or setting up collapsed receptacle

532843, 533817, 533891, B65B 2514

Patent

active

061640468

ABSTRACT:
A high speed machine that inserts about twelve thousand sheets or stacks of sheets of paper per hour into the same number of envelopes. A first table delivers an elongate horizontal queue of thousands of envelopes to an envelope hopper. A second table, parallel to the first table, includes a plurality of independently-controllable sheet feeders and delivers individual groups of stacked sheets to an envelope insertion station that is transversely spaced apart from the envelope hopper. A third table is disposed transversely to the first two tables and includes the envelope insertion station. Clamps carried by an elongate sprocket chain mounted in the third table sequentially remove envelopes from the bottom of the envelope hopper and pull them past an envelope flap-opening structure to the envelope insertion station where the envelopes are opened by a puff of air. The envelopes are then pulled past a moistening device, an envelope flap-closing device, and a roller that seals the envelopes and ejects them from the third table to a collection station. Pusher members that push the sheets into the envelopes at the envelope insertion station are mounted on a high speed rotary assembly that eliminates the back-and-forth motion of earlier pusher members.

REFERENCES:
patent: 1960959 (1934-05-01), Sague
patent: 3423900 (1969-01-01), Orsinger
patent: 4525986 (1985-07-01), Noll
patent: 4649691 (1987-03-01), Buckholz
patent: 4817368 (1989-04-01), DePasquale
patent: 5284004 (1994-02-01), Metzler
patent: 5408811 (1995-04-01), Satake
patent: 5626001 (1997-05-01), Belec

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