Program controlled sheet folding apparatus for folding large she

Details Program controlled sheet folding apparatus for folding large she Program controlled sheet folding apparatus for folding large she

1989-08-28

1991-09-03

Terrell, William E.

Manufacturing container or tube from paper; or other manufacturi

Control of operation by use of templet, tape card, or other...

493 19, 493 23, 493419, 493423, 493444, 493458, B65H 4514, B65H 4518, B65H 4520

Patent

active

050450395

ABSTRACT:
To fold large sheets of different sizes with different folding patterns, in zig-zag folds, the sheets are introduced into a folding system having first, second and third belts (5, 6, 10) which, between the first, second and third belt define a folding gap. The belts are driven, respectively, in selected directions of rotation to fold a sheet in a zig-zag pattern. A control system (35) having a memory (50) with folding patterns stored therein, is responsive to a sheet-length signal derived, for example, from a printer (75). A stepping motor moves a sheet, in accordance with a selected program stored in the memory, to form the fold based on the length of the sheet. Prior to folding sheet a maybe end-for-end a sheet is flung upwardly in a reversing gap (46) whereupon the sheet is transported by paper removal rollers (44, 48) and transport belts (55, 63) to sheet supply rollers (3) of the folding apparatus.

REFERENCES:
patent: 3083010 (1963-03-01), Salmon et al.
patent: 3363897 (1968-01-01), Northern et al.
patent: 3437334 (1969-04-01), Maldonado
patent: 3698705 (1972-10-01), Funk et al.
patent: 3747917 (1973-07-01), Roda
patent: 3790157 (1974-02-01), Crawford et al.
patent: 4338086 (1982-07-01), Heater
patent: 4484905 (1984-11-01), Ashburner
patent: 4504259 (1985-03-01), Lindenmuller

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