A polishing apparatus for materials made of stone with a plurality of grinding heads, which, on two vibrating, parallel and carriers provided with a variable set of saw teeth are aligned

摘要

The polishing machine for stone materials comprises: a conveyor belt (2) for the slabs or strips to be polished, a beam (7) made to oscillate on at least two transverse, fixed frames (4, 5) above the said conveyor, at least one oscillating mechanim, a number of polishing heads (8), aligned on the said beam and oscillating with it, a device for detecting the shape and/or dimensions of the slabs or strips, positioned upstream of the working area, a process and control calculator for the polishing machine, and has, positioned parallel to the said first beam (7) a second beam (9), also equipped with a number of polishing heads (8) aligned transversely with the polishing heads of the said first beam (7), and made to oscillate synchronously with it, by means of adjustable coupling devices, that enable the distance (B) between the rows of polishing heads on the said first beam (7) and second beam (9) to be varied.