Patent ID: 6435953
Filing Date: 2002-08-20
Classification: B08B,B24B,B24D

Abstract:
A coin cleaning and grinding apparatus comprising:a conveyor for conveying coins having a discharge end; first and second drive rollers supported rotatably and horizontally in parallel with each other; a pair of first and second primary cleaning/processing rollers mounted rotatably and downstream from the discharge end of the conveyor, the primary cleaning/processing rollers extending in parallel with the drive rollers, the first primary cleaning/processing rollers being positioned lower than the second primary cleaning/processing roller, the second primary cleaning/processing roller being in compressive contact with the first primary cleaning/processing roller and the first drive roller; a pair of first and second secondary cleaning/processing rollers supported rotatably and downstream from the primary cleaning/processing rollers, the secondary cleaning/processing rollers extending in parallel with the drive rollers, the first secondary cleaning/processing rollers being positioned lower than the second secondary cleaning/processing roller, the first secondary cleaning/processing roller being in compressive contact with the second secondary cleaning/processing roller and the second drive roller; and a sprinkling plate positioned at an angle above the primary and secondary cleaning/processing rollers; the sprinkling plate having first and second rows of sprinkling holes for sprinkling abrasive liquid onto the cleaning/processing rollers, the first row being formed above and in parallel with the primary cleaning/processing rollers upstream from axes of the primary rollers, the second row being formed above and in parallel with the secondary cleaning/processing rollers upstream from axes of the secondary rollers.