Sheet feeding or delivering – Delivering – By endless conveyor
Patent
1979-10-17
1981-05-19
Stoner, Jr., Bruce H.
Sheet feeding or delivering
Delivering
By endless conveyor
271221, B65H 2950, B65H 3138
Patent
active
042680280
ABSTRACT:
In the herein automatic conveyor system for conveying corrugated cardboard sheets from a sheet making machine or the like, the sheets are delivered to a stacker conveyor and the aligning system for the sheets in the stack includes back-stops spaced from the stacker end of the stacker conveyor and against which the sheets are discharged from the conveyor, adjustable side aligners, adjustable against the opposite side edges of the sheets in the stack, and a flexible longitudinal aligner opposite the back-stops with a mechanism for flexing the longitudinal aligner against the sheets sequentially from one end to the other along its length. The longitudinal aligner includes a plurality of longitudinally spaced rollers along a flexible plate and coacting cams on a rotating shaft engaged with the rollers, the cams being circumferentially offset relatively to one another sequentially so as to push adjacent portions of the plate toward the sheets sequentially from end to end as the cams are rotated. Resilient element draw the plate and rollers toward the cams. There is also a safety device actuated when movement of the back-stops is obstructed including articulated braces extended from the support for the back-stops and resiliently held in extended position so that when the back-stops strike an obstruction during the downward movement of the stacker end, the articulated braces buckle and actuate a switch to first raise the back-stops and then stop the stacker operation.
REFERENCES:
patent: 958798 (1910-05-01), Fischer et al.
patent: 1141277 (1915-06-01), Smith
patent: 2341021 (1944-02-01), Curtis
patent: 2387863 (1945-10-01), Turner
patent: 2781195 (1957-02-01), Holloway et al.
patent: 3030867 (1962-04-01), Wright
patent: 3698707 (1972-10-01), Lucas
Stoner Jr. Bruce H.
White George B.
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