Patent ID: 6279588
Filing Date: 2001-08-28
Classification: B08B,F26B,G02F,Y10S

Abstract:
An apparatus for washing and drying glasses for liquid crystal displays or plasma display panels during a process of manufacturing such displays or panels, comprising a first conveyor unit used for feeding a post-processed glass to a next step, a washing unit used for washing the glass fed by the first conveyor unit, a second conveyor unit used for feeding the glass from the washing unit to a next step, a robot used for loading or unloading the glass, fed by the second conveyor unit, on or from a spin dryer unit, the spin dryer unit used for rotating the glass, loaded on the dryer unit by the robot, at a high speed, thus primarily drying the glass, a third conveyor unit used for feeding the glass, dried by the spin dryer unit and unloaded from the spin dryer unit by the robot, to a next step, a hot plate unit used for thermally heating and finally drying the glass fed by the third conveyor unit, a cool plate unit used for cooling the glass from the hot plate unit, and a cassette loader unit used for stacking such glasses from the cool plate unit in a way such that one glass is laid on top of another glass, further comprising:first and second pure water supply pipes respectively arranged above said second conveyor unit and in a glass holding finger of said robot, with a plurality of pure water spray nozzles being provided on each of said pure water supply pipes, said pipes continuously spraying pure water onto a surface of each of the glasses when the glasses are fed from the washing unit by the second conveyor unit and when the glasses are loaded on the spin dryer unit by the robot, thus preventing the surface of each glass from being partially dried and thereby allowing the surface of each glass to be free from any spot due to washing water.