Improvement of Film Conveying and Cutting Device in CH Wrapper

There are still 4 points left uncut in the cut film sheet in CH wrapper of GD packing line,the sheet is detached off the web by an accelerating roller or a suction device while being conveyed,the film sheet is liable to deviate from its proper position even jam the machine. Therefore,the film conveying and cutting device was improved as following:lowering the knife shaft to allow the film once arriving the right position to be cut by a rotating knife and a fixed knife to its specified length;improving fixed knife to eliminate the uncut points in cut film; and conveying film by compressed air flow instead of accelerating roller. The results of practical application indicated that the film was cut completely after the film getting into shape,the deflection and dither of film were avoided and the stability of film conveying was improved. The consumption of film decreased from 0.964 to 0.95 kg per 50000 cigs.,and the number of misaligned tear tape reduced from 0.95 to 0 per shift and that of film jam per shift reduced from 6 to 2. It is easy to adjust the seam position of film,and the machine efficiency increases.