Patent ID: 8535495
Filing Date: 2013-09-17
Classification: C23C

Abstract:
1. A coating device comprising: a rotatable base; a board for holding workpieces; a positioning shaft positioned on the rotatable base and spaced from a rotational axis of the rotatable base; two eccentric wheels fixed on the positioning shaft and extending from the positioning shaft along two opposite directions, the two eccentric wheels being parallel to and spaced from each other; a rack rotatably connected to the rotatable base, the rack comprising a first ring and a second ring, the first ring encompassing one of the two eccentric wheels and the positioning shaft, the second ring encompassing another one of the two eccentric wheels and the positioning shaft, the first ring and the second ring being capable of rotating around the positioning shaft; and two reciprocating shafts, each reciprocating shaft being positioned on a corresponding one of the first and second rings, each reciprocating shaft comprising a hinge portion and a sliding portion, the hinge portion and the sliding portion being positioned at two opposite ends of each reciprocating shaft, the hinge portion being rotatably connected to an end of the board, the sliding portion being slidably connected to the edge of a corresponding eccentric wheel, the two eccentric wheels being capable of driving the two reciprocating shafts to move alternately toward and away from the positioning shaft along radial directions of the positioning shaft when the first and second rings rotates around the positioning shaft.