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Application filed by Hon Hai Prec Ind Co LtdfiledCriticalHon Hai Prec Ind Co Ltd
Priority to TW94124082ApriorityCriticalpatent/TWI322710B/en
Publication of TW200702104ApublicationCriticalpatent/TW200702104A/en
Application grantedgrantedCritical
Publication of TWI322710BpublicationCriticalpatent/TWI322710B/en
The present invention relates to a grinding apparatus. The grinding apparatus includes a grinding container, a motor, a first axle, a second axle, aroller, an AC supply, and two pieces of piezoelectric ceramic. The first axle and the second axle are connected together. The motor drives the first axle to rotate. The roller is engaged with the second axle, and is set in the grinding container. The second axle and the roller are rotated by the rotating first axle. The two pieces of piezoelectric ceramic are fixed at both sides of a metal part of the first axle. The AC supply, the two pieces of piezoelectric ceramic, and the metal part form a vibrator.