bahnbruch - monitoring facility for rollenrotationsdruckmaschinen

摘要

Web break, - monitoring device for web-fed rotary printing machines; comprising at least a detection device (26), which are transverse to a plane on at least one path along edge strips (22, 24) of a printed web (8) is directed to detect the path along edge strip (22, 24) of which is subjected to tensile stress during normal printing operation of the printed web (8) and for generating a web break signal (40) when the web along edge strips (22, 24) in the case of the drop in the tensile stress of the printed web (8) from the detection area of the detection device (26) disappears; at least one close to the detection device (26) arranged pneumatic deflecting means (30), which at least one transversely to the plane of the web on the web along edge strips (22, 24), which is directed to the compressed-air nozzle (32, 34) for generating a direction transverse to the web plane on the web along edge strips (22, 24) acting, in the case of disturbance-free operation of the tensile stress of the printed web (8) which can be overcome, permanent pneumatic deflection force, by means of which the web along edge strips (22, 24) in the case of elimination of the tensile stress, can be deflected transversely to the plane of the detection area of the detection device (26) which can be moved; characterized by a control device (50), which is disposed on a..