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1. 发明授权

US5980693A Extended nip press apparatus 失效
标题翻译：延长夹压机
公开(公告)号：US5980693A
公开(公告)日：1999-11-09
申请号：US48440
申请日：1998-03-26
申请人： Shihua Liang , David McCarville , David Lange
发明人： Shihua Liang , David McCarville , David Lange
IPC分类号： D21F3/02 , D21F3/06
CPC分类号： D21F3/0218
摘要： An extended nip press apparatus is disclosed for pressing a web of paper extending therethrough. The apparatus includes a rotatable backing roll and a press shoe having a concave surface which cooperates with the backing roll. The arrangement is such that the concave surface and the backing roll define therebetween an elongated pressing section for the passage therethrough of the web. The shoe includes an upstream portion and a device for urging the upstream portion toward the backing roll. A downstream portion extends from the upstream portion, the downstream portion being resiliently disposed relative to the upstream portion. A further device selectively urges the downstream portion toward the backing roll for controlling a pressure profile applied by the shoe to the web for inhibiting delamination of the web.
摘要翻译：公开了一种用于挤压延伸穿过其中的纸幅的扩展压区压力装置。该装置包括可旋转的背衬辊和具有与背衬辊配合的凹面的压靴。该布置使得凹面和背衬辊在其间限定用于纤维网通过的细长按压部分。鞋包括上游部分和用于将上游部分推向背衬辊的装置。下游部分从上游部分延伸，下游部分相对于上游部分弹性设置。进一步的装置选择性地将下游部分推向背衬辊，以控制鞋子对织物施加的压力分布，以抑制纤网的分层。

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