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21. 发明申请

US20190061300A1 CRUMPLING MECHANISM FOR CREATING DUNNAGE 审中-公开
公开(公告)号：US20190061300A1
公开(公告)日：2019-02-28
申请号：US16049350
申请日：2018-07-30
申请人： PREGIS INNOVATIVE PACKAGING LLC
发明人： Thomas D. Wetsch , Robert Tegel
IPC分类号： B31D5/00
摘要： A dunnage crumpling apparatus is provided having first and second entry-side crumpling members and first and second exit-side crumpling members. The first and second entry-side crumpling members define an entry therebetween. The first and second exit-side crumpling members define an exit therebetween that is disposed along the longitudinal path downstream of the entry. A crumpling zone being defined between the entry and exit. The first entry-side crumpling member is configured for moving at an first rate and is associated with the second entry-side crumpling member for moving sheet material through the entry in a first direction along a longitudinal path at an entry rate. The first exit-side crumpling member is configured for moving at an second rate and is associated with the second exit-side crumpling member for moving the sheet material through the exit in the first direction along the path at a exit rate that is slower than the entry rate to crumple the sheet material for producing dunnage. The entry and exit-side crumpling members are displaced laterally along the path with respect to each other to cause shearing of the sheet within the crumpling zone.

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