Method of enclosing insert material in a continuously advancing

Details Method of enclosing insert material in a continuously advancing Method of enclosing insert material in a continuously advancing

1974-10-16

1977-01-18

McGehee, Travis S.

Package making

Interrelated or safety controls

93 63M, B65B 1148

Patent

active

040031837

ABSTRACT:
The envelope making and insert machine includes the forming of envelope blanks from an endless web or precut blanks and conveying the envelope blank upwardly along a vertical path to a folding station. The insert material is conveyed along a path that intersects the vertical path in timed relation with the envelope blank. The paths of the envelope blank and the insert material intersect at an angle adjacent the folding station. The envelope blank is engaged at the folding station by a vacuum cylinder, tucker, lifter or the like and is folded along the score line between the envelope blank body portion and bottom flap portion by the vacuum cylinder and a folding cylinder. The path of the envelope blank is changed from a vertical path to the path of the inserts during the folding operation. During the folding of the bottom flap into overlying relation with the blank body portion the insert material is inserted therebetween. The folded envelope blank with the insert material therebetween is thereafter conveyed to gumming and folding stations where adhesive is applied to the side flaps and top flap and the flaps are folded into overlying relation with the envelope blank bottom flap.

REFERENCES:
patent: 2131428 (1938-09-01), Dalkowitz
patent: 3260029 (1966-03-01), Wills
patent: 3336726 (1967-08-01), Mayer
patent: 3388642 (1968-06-01), Berkley
patent: 3457696 (1969-07-01), Berkley
patent: 3593486 (1971-07-01), Helm
patent: 3594976 (1971-07-01), Jackson
patent: 3643555 (1972-02-01), Ehlscheid
patent: 3808768 (1974-05-01), Dobbs
patent: R25961 (1966-02-01), Volks

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