Adjustable feed rolls for feeding sheets

Details Adjustable feed rolls for feeding sheets Adjustable feed rolls for feeding sheets

1989-02-01

1990-09-25

Schacher, Richard A.

Sheet feeding or delivering

Feeding

By means to convey sheet

226177, B65H 506

Patent

active

049588290

ABSTRACT:
Apparatus, for example for processing sheets of corrugated paperboard in the production of container blanks, has a pair of feed rolls between which the sheets are fed while passing through the apparatus, and a pair of side frames in which the feed rolls are rotatably mounted one above the other. The upper of the feed rolls is journalled in bearings mounted eccentrically in bearing housings rotatable in holes in the side frames. Gearing is provided for adjustably rotating the bearing housings in the holes to move the upper feed roll respectively away from and towards the lower of the feed rolls. A pair of wedges act upon each bearing housing and are disposed in a cavity in each side frame below and communicating with the respective bearing housing. The wedges are moved towards each other by a screw bolt and/or a fluid cylinder to pre-load the bearing housings upwards in their holes. This takes up tolerances and eliminates hammering of the eccentric bearing housings in the side frame holes as successive sheets enter between the feed rolls.

REFERENCES:
patent: 1193382 (1916-08-01), Hayes
patent: 3326439 (1967-06-01), Sarka
patent: 4048831 (1977-09-01), Fabian
patent: 4158429 (1979-06-01), Ohmori

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