发明名称 Method and Device for Winding of Fiber Webs, Especially of Paper and Board Webs
摘要 A method and apparatus for winding fiber webs, particularly paper and board webs, in which partial web rolls (R1, R2) are wound in a winding device having at least two winding stations (21, 22), where partial webs (W1, W2) are guided to rolls (R1, R2) via a nip between a winding roll(s) (12, 41, 42) and the partial web rolls (R1, R2). The partial webs (W1, W2) are guided on the surface of the winding roll(s) (12, 41, 42) before entering the nips creating a wrap angle (A1, A2) on the winding drum(s) (12, 41, 42). The wrap angles (A1, A2) of the partial webs onto the surface of the winding roll (12, 41, 42) is at least 120° and the wrap angle ratio, i.e. the relation of the larger wrap angle to the smaller wrap angle, is at least 1 and at most 1.25.
申请公布号 US2013270383(A1) 申请公布日期 2013.10.17
申请号 US201313862998 申请日期 2013.04.15
申请人 HAAPANEN JAAKKO;VIRTA HENRY;FOEHR HEIKKI;METSO PAPER, INC. 发明人 HAAPANEN JAAKKO;VIRTA HENRY;FOEHR HEIKKI
分类号 B65H18/08 主分类号 B65H18/08
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