Apparatus for spotting labels onto a surface having a transparent conveyor means

摘要: A system for registering boxes carried on one conveyor line with wraps another line, in which the and are viewed by electronic cameras that provide respective digitized images of wraps, a computer determines from those sufficient information to effect such registration mechanical arm spots regardless their original orientation, responsively commands computer. vacuum plenum is disposed beneath wrap maintaining negative pressure releasably retains surface conveyor. The comprises flexible, pneumatically porous, light-transmissive belt moving viewing camera against upper belt, being supported over an apertured, frame. diffuse light source also provided lighting opposite so as increase optical contrast between belt.