Patent ID: 8904740
Filing Date: 2014-12-09
Classification: B31B,B32B,B65B,Y10T

Abstract:
1. A transforming machine for changing a strip of bag precursors in to a strip of open bags comprising: a drive motor; a separation station comprising: a sensor sensing transverse edge seals of the continuous strip of bag precursors when the continuous strip of bag precursors is present in the transforming machine; and a controller electrically connected to the sensor, the brake, and the clutch; wherein the controller, based on one or more signals from the sensor, determines when perforations in one perforated bag precursor of the continuous strip is located in the gap between the pressure roller and the separation roller and at that point in time signals the brake to activate thereby stopping the rotation of the pressure roller and signals the clutch to disengage thereby disengaging the main drive roller from the drive motor, while the drive motor continues to drive the rotation of the separation roller, thereby separating the perforations in a first film layer, but not the perforations in a second film layer, of the continuous strip of bag precursors.