| 摘要 |
A cushioning conversion machine having a novel former around which a sheet material is folded to form an improved cushioning product. The former has longitudinally spaced side surfaces inclined from bottom to top toward a downstream end of the machine. The side surfaces cause the obstruction of th e sheet stock material upstream of the side surfaces so that the sheet materia l crumples in the spaces upstream of the side surfaces, thereby increasing the cushioning properties of pillow portions of the cushioning product. The form er also has a centrally located base plate which minimizes crumpling in a centr al portion of the sheet material so that the folded over portions and the centr al portion can be connected to maintain more effectively the shape of the pillo w portions in the resulting cushioning product. In addition, the former has a guard plate mounted above longitudinally spaced bottom edges extending laterally outwardly from the base plate and upstream from a vertical central plane. The former also has a pair of mandrels at its downstream end which internally fluff the crumpled pillow portions before the central portion is connected. The machine also has a width adjustment device for selectively adjusting the width of the resulting cushioning product.
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