FILM FEED AND CUTTER FOR FOLD-OVER WRAPPING MACHINE

摘要

A wrapping machine has an article feeding conveyor delivering to a wrapping conveyor driven at the same speed and having a fold-over bar arranged to fold the trailing end of a wrapper sheet forwardly over the article as the article continues to advance. A film feed conveyor delivers the leading end of a wrapper film to the inlet end of the wrapper conveyor to be trapped under and advanced with the article. A rotary cutter bar located at the inlet end of the film feeding conveyor cuts an individual wrapper from the film as the leading end of the wrapper is trapped by the article. Drive connections to the film feed wrapper and the cutter bar and continuously operating film feed rollers operate the film feed and cutter at a slow speed approximating the lineal speed of the wrapping conveyor while the cutter is operating and then speed up the film feed to a fast speed to advance a sufficient length of the film to provide a complete wrapper before the next actuation of the cutter bar.