Method and apparatus for splicing running webs of low tensile strength

摘要

A fresh web of cigarette paper or the like is spliced to the running web by a uniting band, which is adhesive at both sides, after the fresh web is accelerated to the speed of the running web. The uniting band is placed between the running web and the leader of the fresh web, and the running web is shifted sideways to adhere to the adjacent side of the uniting band as well as to move the other side of the uniting band against the fresh web as soon as the speed of the fresh web rises to that of the running web. The running web is severed behind the moving uniting band, and the fresh web is severed ahead of the moving uniting band. Severing of the fresh web is preceded by relaxation of tensional stress upon the leader of the fresh web in response to displacement of a guide roller which engages the fresh web between a stationary knife for the fresh web and a pair of motor-driven advancing rolls which pull the leader of the fresh web in the course of and subsequent to completed acceleration of the fresh web.