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    • 2. 发明授权
    • Roll stand
    • 卷架
    • US5775630A
    • 1998-07-07
    • US605062
    • 1996-03-05
    • Hans HogbergStefan Back
    • Hans HogbergStefan Back
    • B65H19/16B65H19/18B65H23/06
    • B65H19/1868B65H19/1821B65H19/1889B65H23/063
    • The invention relates to a roll stand (1') comprising a frame (3') with a roll-holding device (71) for two unwinding stations (A', B'), which frame (3') comprises means (101, 102, 103) for joining, in a roll-changing operation, a material web, which is unwound from a roll (12, 12a) provided with a rotating spindle (171, 181), to a leading end, provided with adhesive, of a material web from another roll (12, 12a) which is similarly provided with a rotating spindle (171, 181), as well as means (108, 109) for cutting off the first-mentioned web and a mechanism for braking the spindles. The invention is further characterized by means (117, 118, 172, 173, 182, 183, 197) for, on the one hand, transferring the rotary moment from the roll spindles (171, 181) to a braking mechanism (115), comprising a free-wheel mechanism (157, 195) arranged to connect the braking mechanism (115) to the roll spindle (171, 181) which is momentarily rotating at the highest speed and on the other hand, at the start of a roll-change operation, transferring an accelerating moment from an acceleration unit (116) to the roll spindles (171, 181), which acceleration unit comprises a free-wheel mechanism (165, 166) arranged to connect the acceleration unit to the roll spindle (171, 181) which is momentarily rotating at the lowest speed.
    • PCT No.PCT / SE94 / 00862 Sec。 371日期:1996年3月5日 102(e)1996年3月5日PCT PCT 1994年9月16日PCT公布。 公开号WO95 / 08503 日期:1995年3月30日技术领域本发明涉及一种包括具有用于两个展开站(A',B')的卷筒保持装置(71)的框架(3')的辊架(1'),该框架(3') 包括用于在滚动更换操作中将从设置有旋转主轴(171,181)的辊(12,12a)退绕的材料纤维网连接到前端的装置(101,102,103) 具有粘合剂的材料纤维网,其具有类似地设置有旋转主轴(171,181)的另一个辊(12,12a)以及用于切断首先提到的纤维网的装置(108,109)和一种机构 用于制动主轴。 本发明的进一步特征在于,一方面将转动力矩从辊子主轴(171,181)传递到制动机构(115)的装置(117,118,172,173,182,183,197) 包括一个自由轮机构(157,195),其布置成将制动机构(115)连接到以最高速度瞬间旋转的辊轴(171,181),另一方面, 将加速单元从加速单元(116)传递到滚动轴(171,181)的加速单元,该加速单元包括布置成将加速单元连接到滚动轴(171,181)的自由轮机构(165,166) ,181),其以最低速度瞬时旋转。