초록 ▼

A grinding water tank unit which allows grinding water used in processing an eyeglass lens to be reused, has: a water tank for storing the grinding water; and a partition plate for partitioning an interior of the water tank into a drain chamber and a water suction chamber. The partition plate define

A grinding water tank unit which allows grinding water used in processing an eyeglass lens to be reused, has: a water tank for storing the grinding water; and a partition plate for partitioning an interior of the water tank into a drain chamber and a water suction chamber. The partition plate defines a vertical opening adjacent an interior side surface of the water tank and extending in a depthwise direction of the water tank and a horizontal opening adjacent an interior bottom surface of the water tank and extending in a direction substantially perpendicular to the depthwise direction of the water tank so that a channel is secured between the drain chamber and the water suction chamber by the openings.

대표청구항 ▼

A grinding water tank unit which allows grinding water used in processing an eyeglass lens to be reused, has: a water tank for storing the grinding water; and a partition plate for partitioning an interior of the water tank into a drain chamber and a water suction chamber. The partition plate define

A grinding water tank unit which allows grinding water used in processing an eyeglass lens to be reused, has: a water tank for storing the grinding water; and a partition plate for partitioning an interior of the water tank into a drain chamber and a water suction chamber. The partition plate defines a vertical opening adjacent an interior side surface of the water tank and extending in a depthwise direction of the water tank and a horizontal opening adjacent an interior bottom surface of the water tank and extending in a direction substantially perpendicular to the depthwise direction of the water tank so that a channel is secured between the drain chamber and the water suction chamber by the openings. body in such a manner as to be capable of moving in a vertical direction; a retainer ring idly supported by said head main body in such a manner as to be capable of moving in a vertical direction, encompassing said work and coming into contact with said polishing pad during polishing; and a flexible sheet supported at peripheral edge thereof by said retainer ring in such a manner as to cover the inside of said retainer ring to form a chamber between a first surface of said carrier and a first surface of said flexible sheet, and wherein a plurality of holes are formed in said flexible sheet; wherein an outer peripheral edge portion of said carrier protruding in a diametric direction is placed on said retainer ring to form an air seal portion to maintain pressure in said chamber at or below a predetermined pressure level, and wherein said plurality of holes are of sufficient size to permit air from an air blast port formed on said first surface of said carrier to flow there through during polishing.