Stage and thread assembly for highspeed envelope packing apparatus

A stage and thread assembly is disclosed for use in a high speed envelope packing apparatus. The assembly receives from the side, a single envelope with flap open. The assembly precisely aligns and positions the envelope in a pre-stage area via a plurality of entry ramps, continuously running belts, and back stops, correcting any misalignment. Once positioned in the pre-stage area, the apparatus stages the envelope in a position above the thread roller of the high speed packing apparatus so that the envelope can be threaded on the packing plate for insertion of material into the envelope. The staging of the envelope is achieved via a plurality of rollers including, d-rollers, flipper rollers, and stage rollers. The envelope is staged in a direction perpendicular to the direction of entry of the envelope.