Dunnage conversion system and method for expanding pre-slit sheet stock material
Номер патента: EP3261833A1
Опубликовано: 03-01-2018
Автор(ы): Robert Cheich
Принадлежит: Ranpak Corp
Опубликовано: 03-01-2018
Автор(ы): Robert Cheich
Принадлежит: Ranpak Corp
Реферат: A dunnage conversion system (20) for expanding an unexpanded slit sheet stock material (23) to form an expanded dunnage product (26). The dunnage conversion system includes a converging chute (28) to inwardly gather laterally-extending edges of sheet stock material towards one another, causing random crumpling of the sheet stock material to form a modified ply. The conversion system also includes feed wheels (120) that advance the modified ply through the converging chute and pinch rollers (122) that cooperate with the feed wheels to expand the modified ply traveling between the feed wheels and the pinch rollers to form a dunnage product. The expanded dunnage product is expanded both in a longitudinal feed direction and in thickness as compared to the unexpanded slit sheet stock material, and thus is a three-dimensional product having increased volume and lower density per unit of length as compared to the unexpanded slit sheet stock material.
Dunnage conversion system and method for expanding pre-slit sheet stock material
Номер патента: US11787145B2. Автор: Robert C. Cheich. Владелец: Ranpak Corp. Дата публикации: 2023-10-17.