公开(公告)号：EP2711322A1

公开(公告)日：2014-03-26

申请号：EP12425155.4

申请日：2012-09-21

申请人： Sidel S.p.A. Con Socio Unico

发明人： Carmichael, James ,  Facchini, Nicola

IPC分类号： B65H20/34

CPC分类号： B65H20/34 ,  B65H2801/75

摘要： The invention relates to a buffer device (20) adapted to receive a web (2) from a relative source (4) and arranged upstream, with respect to an advancement direction of said web (2) along a relative feed path (FP), of driving means (7) intermittently actuatable to alternately move, and terminate movement of, the web (2) at an operating station (5) arranged further downstream thereof; the buffer device comprising a first and a second group (21a, 21b) of guide rollers (22a, 22b) having different diameters, wherein each roller (22a) belonging to the first group (21a) is paired with a corresponding roller (22b) in the second group (21b) to form a couple of same-diameter rollers; the buffer device (20) comprising means (24) for kinematically coupling the first and second groups (21a, 21b) to one another, so that they are movable in opposite directions relative to one another and symmetrically relative to a central portion (23) of the buffer device (20); and by comprising actuating means (26) for energising the kinematic coupling means (24) to selectively vary the mutual distance of the first and second groups (21a, 21b).

摘要翻译： 本发明涉及一种缓冲装置（20），其适于从相对源（4）接收纸幅（2）并相对于所述纸幅（2）沿着相对馈送路径（FP）的前进方向布置在上游， 驱动装置（7）可间歇地致动以便在布置在其下游的操作台（5）处交替地移动和终止幅材（2）的移动; 所述缓冲装置包括具有不同直径的导向辊（22a，22b）的第一组和第二组（21a，21b），其中属于第一组（21a）的每个辊（22a）与相应的辊（22b）成对， 在第二组（21b）中形成一对相同直径的辊; 缓冲装置（20）包括用于将第一组和第二组（21a，21b）相互运动地联接的装置（24），使得它们可相对于彼此相对于中心部分（23）对称地相对移动， 的缓冲装置（20）; 并且通过包括致动装置（26），用于激励运动耦合装置（24）以选择性地改变第一组和第二组（21a，21b）的相互距离。