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US 2018/0362207 A1Published application
Balanced process for extrusion of plastic corrugated sheet and subsequent converting into plastic boxes
AssigneeORBIS Corporation
InventorsWilliam F. McMahon, Donald J. Balazs
Life of this patent
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Abstract
The invention is directed to a balanced process for extrusion of a plastic corrugated sheet or blanks, and subsequent converting of the blanks into plastic boxes. The process includes conveying the blanks to a plurality of forming stations for incrementally forming features on the blank needed for forming a box. The present process is performed at a slower speed than typical paper corrugated forming.
Claims20
A balanced in-line process for forming blanks for forming boxes comprising:
- sequencing a blank of corrugated plastic material having a first outer layer, a second outer layer and a plurality of flutes between the first outer layer and the second outer layer through a plurality of forming stations;
- forming a first body fold line separating a first box side wall and a second box side wall in the blank at a first forming station;
- and,
- forming a score line to create a first flap in the blank at a second forming station.
1 more element
A balanced in-line process for forming blanks for forming boxes comprising:
- sequencing a plurality of blanks of corrugated plastic material through a plurality of forming stations by a conveyor, each blank having a first outer layer, a second outer layer and a plurality of flutes between the first outer layer and the second outer layer;
- moving each of the plurality of blanks through a first forming station by the conveyor;
- forming a plurality of fold lines in each blank by joining the first outer layer to the second outer layer at each fold line at the first forming station;
- moving each of the plurality of blanks through a second forming station by the conveyor;
- and,
- forming a plurality of flap score lines in each blank by joining the first outer layer to the second outer layer at each score line at the second forming station.
3 more elements
Dependencies are inferred from the claim text.