Apparatus for folding panels of carton blank

Details Apparatus for folding panels of carton blank Apparatus for folding panels of carton blank

1976-04-01

1977-08-30

Lake, Roy

93 363, B31B 326

Patent

active

040446581

ABSTRACT:
Apparatus for folding the panels of a bulk box blank into a tube. Such apparatus is particularly suited to fold the panels of extremely large heavy-weight blanks which are resistant to folding and therefore difficult to fold manually. The apparatus includes a vacuum hold down unit to hold and register the blank in position, folding arm assemblies to successively fold down the outer panels of the blank into a tube, and a hold-down device to restrain the folded panels from springing upward as the folded blank is moved into a compression unit.

REFERENCES:
patent: 1905334 (1933-04-01), Bicker
patent: 3111065 (1963-11-01), Jones et al.
patent: 3512459 (1970-05-01), Di Frank
patent: 3808958 (1974-05-01), Keener et al.
patent: 3815482 (1974-06-01), Nelson

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