TWO STAGE TRAY FEEDER WITH BACK LIGHTING FOR SMALL PARTS
Original Publication Date: 1991-Jul-01
Included in the Prior Art Database: 2001-Dec-11
On most of the robot stations that are using vision (4) onto the next position (stage) and presented to the system, the part is picked-up by an end-effector, robot. Before the end-effector comes to pick the part, presented to a camera which analyses it and then a light source slides underneath the tray and illum- places the part properly. This new design eliminates inates the tray from below. The tray is made from a stage mentioned above and presents the parts to the light diffusing material so that the robot sees the robot end-effector while in tray. shadow of the part (with a vision system), calculates the center of the part and places the part accurately on After manually loading the trays with parts which the hoard. Whenever the tray is empty the light source are to be placed, a vertical cylinder (1) brings the trays slides back and another vertical cylinder (6) travels up up against a hard stop (3) and centers the top tray, to slowly bring down the empty tray after being because of some chamfers around the tray. Six small released from the six cylinders. After the tray is air cylinders grasp the tray and the rest of the trays are lowered, the hard stop travels back and another cycle lowered to the original position, while the hard stop is ready to start. with the full tray is transferred by a horizontal cylinder Two ST&x TRAY FEEDER WlrH BACK LlGHrlNC - SKJE VlEw - l I .