Pleat-and-pinch folding apparatus

Details Pleat-and-pinch folding apparatus Pleat-and-pinch folding apparatus

1979-03-02

1980-12-16

Burr, Edgar S.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

B65H 4518

Patent

active

042392012

ABSTRACT:
To eliminate the need for braking sheets or webs being fed to a pleat-and-pinch folding apparatus, a pleating blade, suspended to fold sheets in the nip between folding rollers is arranged for reciprocating movement in the direction of feed of the sheets or web, conjointly with movement of the rollers so that the moving sheet is being creased and pushed into the nip between the rollers while it still has a longitudinal movement component, which is synchronized essentially with the axial movement of the rollers and the longitudinal movement of the pleating blade. The longitudinal movement of the sheet or web is stopped after the sheet has been gripped between the rollers and as it is being fed to a further transport arrangement, return movement of the rollers and the blade being effected between feeds of subsequent sheets. The axial movement of the roller and the longitudinal movement of the pleating blade can be controlled by cams, eccenters and the like.

REFERENCES:
patent: 259978 (1882-06-01), Crowell
patent: 2172361 (1939-09-01), Clauberg

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