Patent ID: 7746463
Filing Date: 2010-06-29
Classification: G01N

Abstract:
1. An apparatus for inspecting defect of a rubbing cloth, comprising: a housing surrounding the periphery of the rubbing cloth; a transfer unit connected to the upper portion of the housing for transferring the housing along a length direction of a rubbing roll, wherein the transfer unit comprises rails installed on a table; wheels contacting the rails; and a wheel driving motor for driving the wheels, and wherein when the rubbing roll is rotated for inspecting defect of the rubbing cloth, the housing is transferred by the transfer unit at the same time, and when the wheels are rotated by the rotation of the driving motor, the wheels move along the rails to transfer the housing; an illumination unit installed at one side in the housing for illuminating the rubbing cloth; and a camera unit installed at the other side in the housing to correspond to the illumination unit on the basis of the rubbing roll, wherein the camera unit comprises an upper camera for photographing the top end of the rubbing cloth; a lower camera for photographing the bottom end of the rubbing cloth; and an intermediate camera for photographing the intermediate portion of the rubbing cloth.