公开(公告)号：US06969059B2

公开(公告)日：2005-11-29

申请号：US10620906

申请日：2003-07-16

申请人： Jeffrey U. Gafner

发明人： Jeffrey U. Gafner

IPC分类号： B65H5/24 ,  B65H29/68

CPC分类号： B65H29/6627 ,  B65H29/68 ,  B65H33/12 ,  B65H2406/31

摘要： A shingling apparatus for sheets of paper or paperboard includes a pair of independently operable vacuum plenums in a gap between an in-feed conveyor and a reduced speed shingling conveyor. One of the vacuum plenums decelerates an incoming sheet to shingling conveyor speed while the second vacuum plenum captures and pulls down the tail of the sheet to allow the faster moving following sheet to override the tail. This dual vacuum action enhances sheet control, requires very little vertical displacement of the sheets at the vacuum plenums, and enhances the squareness of the shingle that is formed. The system may also include a downstream shingle separator including a translating connection that assists in pulling the necessary gap between downstream shingle portion being directed into a stacker and an upstream shingle portion that is accumulated until the downstream shingle portion is stacked and discharged.

公开(公告)号：US06716317B2

公开(公告)日：2004-04-06

申请号：US10056376

申请日：2002-01-24

申请人： Jeffrey U. Gafner ,  Robert L. Turnquist

发明人： Jeffrey U. Gafner ,  Robert L. Turnquist

IPC分类号： D21F100

CPC分类号： B65H23/34

摘要： A running web is decurled by controlling web tension as well as the angle of wrap on a decurler roll and a cooperating pivot roll, all without affecting web tension in the downstream web converting process. An upstream brake roll and a downstream pull roll control web tension within the decurler apparatus and independent decurler rolls are provided for removing up-curl and down-curl.

摘要翻译： 通过控制卷筒纸张力以及包装在卷曲机卷轴和协作枢转辊上的角度来卷曲运行的卷筒纸，全部不影响下游纸卷转换过程中的纸张张力。 提供上卷帘卷和下拉拉辊控制卷筒纸张力在卷取装置和独立的卷取卷筒内以去除卷曲和卷曲。