Packaging machine and process

摘要

A conveyor system pre-inserts a portion of the web into a first belt before the portion is gripped between the first belt and a second belt. In one exemplary embodiment, a pair of lips of a web are inserted into a corresponding first pair of belts and then the pair of lips are secured in the first pair of belts by inserting a second pair of belts into the first pair of belts over the pair of lips.

主权项

1. A conveyor assembly for gripping a web material and moving the web material along a path of travel comprising:
a first endless conveyor belt having an endless web engaging recess formed therein; a second endless conveyor belt, wherein the recess and the second endless conveyor belt having mating cross sectional configurations; a web pre-insertion device having a web pre-insertion roller positioned to press a portion of the web into the recess; a belt insertion device having a belt insertion roller positioned to press the second endless conveyor belt into the recess after the pre-insertion device has pressed the portion of the web into the recess, wherein pressing the second endless conveyor belt into the recess by the belt insertion device causes the first and second endless conveyor belts to grip the web, wherein movement of the first and second endless conveyor belts moves the gripped web along the path of travel;and
a mounting assembly having roller brackets connected to mounting flanges, wherein the web pre-insertion roller and the belt insertion roller are mounted between the roller brackets.