Downstacker assembly

Details Downstacker assembly Downstacker assembly

B - Operations, Transporting

05

B

270/70

B05B 1/14 (2006.01) B65G 57/04 (2006.01) B65H 29/32 (2006.01)

Patent

CA 1302447

Abstract of the Disclosure An improved downstacker assembly (10) in which paperboard blanks, received from a die cutter station (24), are passed sequentially through a trim removal station (12), a feed station (26), a stacker assembly (16) partially disposed in a pit (22), and a stack retrieval assembly (120). The stacker assembly (16) is disposed in a drop chute beneath a vacuum conveyor assembly (18) which drops the blanks from the feed station (26) into the drop chute, assisted by an impact- ing assembly (84) which selectively separates the blanks therefrom. The stacking blanks are tamped against flex- ible curtains (152) on a descending elevator assembly. A stack staging assembly (154) serves as a temporary cradle to catch the falling blanks once a predetermined stack height is achieved until the stacks can be removed via the stack retrieval assembly (120).

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