Nidek Co., Ltd.

Kenichi Inaishi

Motoshi Tanaka

Ryoji Shibata

Akihiro Nagura

An eyeglass lens processing apparatus includes: a processing apparatus body for processing a lens, which includes a grinding water supply unit for ejecting grinding water to a portion to be processed of the lens; a centrifugal separator which separates processing refuse from grinding water by rotating a dewatering bin to discharge the grinding water to the outside of the dewatering bin; and a calculation control unit which includes a counter for multiplying a processing refuse amount of the lens on the basis of a control signal of the apparatus and a memory for storing a processing refuse extraction reference provided to maintain filtering efficiency of the dewatering bin, the processing refuse extraction reference being determined on the basis of the multiplied processing refuse amount of the lens, and which generates an alarm signal when the multiplied processing refuse amount of the lens reaches the processing refuse extraction reference.

Eyeglass lens processing apparatus

A grinding water treating apparatus for separating a processing refuse from grinding water used for processing a periphery of an eyeglass lens, the grinding water being introduced from an eyeglass lens processing apparatus, the grinding water treating apparatus includes: a centrifugal separator that includes a dewatering tank having a bottom surface and a side surface and a drive source for rotating the dewatering tank, and springs out the grinding water to an upper portion of the dewatering tank by rotating the dewatering tank; and a drain pipe that introduces the grinding water from an upper portion of the dewatering tank. The centrifugal separator includes a filter arranged at the upper portion of the dewatering tank and having an opening inserted with the drain pipe for filtering the grinding water separated from the processing refuse by a centrifugal force generated due to rotation of the dewatering tank.

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Okazaki, Japan

Kenichi Inaishi