Method and apparatus for making easy open flexible bag filled with compressed flexible articles

摘要

Method and apparatus for making an easy open substantially rectangular bag of compressed flexible articles in which the flexible articles are arranged in a stack and held in compression in a direction substantially parallel to their thickness. The preferred method includes the steps of: (a) partially erecting a flexible bag including a substantially continuous line of weakness; (b) forming a stack of flexible articles; (c) compressing the stack of flexible articles between a pair of opposed knife belt assemblies; (d) inserting the knife belt assemblies into the open bottom end of the partially erected flexible bag; (e) simultaneously driving the opposed knife belts associated with the knife belt assemblies in a direction which advances the stack of compressed articles into contact with the innermost surface of the top panel of the partially erected flexible bag; (f) completely retracting the knife belt assemblies from the open end of the partially erected flexible bag; (g) folding the open bottom end of the partially erected, filled flexible bag to form a closed bottom panel; and (h) securing the bottom panel of the easy open bag in a closed position.