Abstract:
Disclosed is an apparatus for grinding the screen panel of a CRT. A jig pallet for holding the screen panel of a CRT is fixedly supported by a jig pallet support plate by means of a pivoting mechanism. The screen panel is fixedly mounted in the jig pallet by means of a plurality of fixing cylinders. A wheel-type grind felt device for grinding the surface of the screen panel is provided over the jig pallet. The rotational axis of the wheel-type grind felt device is parallel with the pivoting axis of the jig pallet. The wheel-type grind felt device contacts and grinds the portions of the surface of the screen panel in stepwise manner while the screen panel is pivoting about a pivot pin. A cooling fluid supply tube is provided for supplying a cooling liquid between the surface of the screen panel and the peripheral surface of the wheel-type grind felt device. The wheel-type grind felt device consists of a pair of rubber disks mounted on the shaft of a driven pulley with a space between them and a ring-shaped felt for covering the space.