Patent ID: 9573714
Date: 2017-02-21
CPC Classifications: A22C,B65B,G01P,G05B

Claim:
1. A computer program product for operating an automated or semi-automated packaging system having a product chute and a film forming system that converts flat sheet stock to tubular film, the computer program product comprising: a non-transitory computer readable storage medium having computer readable program code embodied in said medium, said computer-readable program code comprising: computer readable program code that directs a product pusher assembly with a pusher head and servo motor to drive the pusher head through a stroke cycle with a speed profile that accelerates the pusher head from at least one of a home or retracted stop position to a first speed for a first distance then decelerates the pusher head to a speed that corresponds with a film speed of the tubular film, then continues to decelerate to a stop position associated with a forward end portion of the stroke cycle; and computer readable program code that directs the servo motor to move the pusher head a distance beyond the stop location to carry out an absolute move of stroke length to provide an accurate full stroke length for consistency in packaging.