Manufacturing container or tube from paper; or other manufacturi – Container making – Rigid container
Patent
1989-09-28
1992-03-03
Terrell, William E.
Manufacturing container or tube from paper; or other manufacturi
Container making
Rigid container
493423, B31B 526, B31B 358
Patent
active
050928279
ABSTRACT:
Apparatus and a method for folding flaps onto panels formed in folded box blanks, particularly those constructed from corrugated cardboard. As a blank advances along a paper line, a first station engages leading edges of the flaps and forces the flaps into an intermediate plane representing a partial folding operation. Then a second station controls the relative velocities of the flaps along the paper line with respect to the panels to compensate for skew that can occur in other stations. A final station completes the folding operation. The resulting fold is made about an axis, or fold line. If the flap is to be folded about a prestamped score line, the fold and score lines are coextensive. Typically the flaps are folded 180.degree. and the first station produces intermediate folds that are displaced 90.degree. from the panels.
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McAdam, III Hugh A.
Pacocha James
Tremblay Robert
International Paper Box Machine Co., Inc.
Terrell William E.
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