Rollersamp;prime; position moving device for a sand belt machine

摘要

A rollers' position moving device for a sand belt machine includes a conveyor in the machine, a sand belt, and plural rollers moving the sand belt. The rollers are deposited across on the conveyor. Further, a first wheel and a second wheel are pivotally connected with one side of each roller, and the first and the second wheel have different diameters so as to rotate with different speeds. The rotating speed disparity of the two wheels can make the two wheels move laterally right and left within a preset distance because of an inner projection surface of the two wheels. Then the rollers are rotated and moved laterally right and left by one of the wheels so that sand grinding of the rollers rotating and moving laterally right and left at the same time can grind a work being ground smooth and glossy.