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PORTAGE A DEPRESSION A HAUTE VITESSE
专利权人:
INC.;CURT G. JOA
发明人:
MEYER, THOMAS C.
申请号:
CA2547464
公开号:
CA2547464C
申请日:
2006.05.23
申请国别(地区):
CA
年份:
2014
代理人:
摘要:
This invention proposes a new, improved method and apparatus for applying web segments to a traveling web. These web segments, sometimes called ears or wings, may be asymmetrical or otherwise incompatible with the usual slip-and-cut method. The asymmetrical shape may have differing web tensions which can cause the web segments to be improperly engaged with the vacuum holes on an anvil roll. The present invention utilizes both circumferential rows of vacuum holes and an additional pattern of ear retaining vacuum holes. The circumferential rows of vacuum holes are activated consecutively by vacuum commutation, however, the pattern of ear retaining vacuum holes are activated simultaneously to counter the effects of differing web tensions on the ear portions.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
相关发明人
meyer, thomas c.
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