Patent ID: 7909156

Claim:
A turnover device for turning over a substrate, comprising a tumbler that is selectively rotated by a motor; an upper turntable operably interconnected to the tumbler, the upper turntable adapted for independently selectively securing the substrate, wherein the upper turntable comprises first aligning clamps and first vacuum suckers, the first aligning clamps are arranged around four corners of the upper turntable and the first vacuum suckers are arranged across the upper turntable; a lower turntable operably interconnected to the tumbler positioned directly beneath the upper turntable, the lower turntable adapted for independently selectively securing the substrate, wherein the lower turn table comprises second aligning clamps and second vacuum suckers, the second aligning clamps are arranged around four corners of the lower turntable and the second vacuum suckers are arranged across lower turntable; a transmission mechanism associated with the tumbler that selectively moves at least one of the upper turntable and the lower turntable to change the distance therebetween; and wherein the turntable tumbler rotates the upper turntable and the lower turntable such that the lower turntable to a position directly above the upper turn table and during the rotating the first and second vacuum suckers of both the upper turntable and the lower turntable suck and hold the substrate between the upper and lower turntables.