Registration station for assembling insulating glass windows

A registration station for assembling insulating glass units comprising:

• a base positioned to accept glass lites delivered by one or more conveyors and including one or more drive rollers coupled to the base that are spaced across a two dimensional registration region for controllably moving the glass lites entering the registration region in a first direction;
• a drive for selectively actuating the one or more drive rollers coupled to the base, the one or more drive rollers for controlling movement of the glass lites into an initial position within the registration region;
• one or more drive belts movably coupled to the base for movement into and out of a lite engaging position for moving the glass lites entering a registration region of the registration station to an initial position with respect to the base;
• an actuator coupled to the base for moving the one or more drive belts into and out of the lite engaging position;
• a lift frame coupled to the base for both pivoting and translation with respect to the base;
• a first set of one or more frame stops fixedly coupled to the lift frame for registering edges of a first glass lite entering the registration region of the registration station due to movement of the drive belts;
• a plurality of lift pads coupleable to an air source and coupled to the lift frame for attracting the first glass lite to the lift frame while allowing relative movement of the first glass lite with respect to the lift frame in a plane generally coincident with the first glass lite;
• a frame actuator coupled to the base, the frame actuator for moving the lift frame with respect to the base, said frame actuator applying a translational movement that separates the first glass lite from the drive belts after capture of the first glass lite by the lift pads and pivots the frame to re-position the first glass lite after the first glass lite is spaced from the drive belt;
• one or more registration fingers movably coupled to the lift frame for contacting an edge of the first glass lite and moving said first glass lite into a registration position against the first set of one or more frame stops;
• a second set of one or more moveable stops movably coupled to the base, the second set of one or more moveable stops registering other glass lites entering the registration region;
• and
• a stop actuator for controllably moving the second set of stops into and out of a reference defining position.