Doubling productive of bags or formats to all machines equipped of a system of perforation, voltage adjustable and tearing

摘要

P device allowing the productivity of the bags and flat or pleated sheets of paper, manufactured from a system of the perforation, adjustable voltage and tearing / p & & p & it comprises an element making it possible to delay the perforation of a second strip of paper, at the center of two perforations of the first strip originally used, in order to form a double pipe, or superimposed strips. These two tubes are cut successively, one on the inside, the other on the outside, and then separated, by acceleration with the devices are already known, but modified in a half - fraction in order to obtain two actions to an action of the prior art, that is - to - say without any additional speed conditions, the benefit of a half - time to the damping material and energy. / p & & p & the invention can be used on all existing machines of this type and be applied with extension on new machines to the bags, in order to obtain the embodiment of the lengths of the bag and / p