| 摘要 |
<p>Device for fine grinding and polishing stone and other hard materials, e.g. granite or marbles in the form of blocks, plates or sheets. The device is designed to be used with a machine including at least two arms performing a combination of a rotative and oscillating movement along a surface to be treated. Each arm of said machine comprise an attachment arrangement for a curved grinding block to perform a grinding (by use of a self cleansing contact), defining a translating one-dimensional line contact (at 20) along a surface to be treated. The attachment arrangement (1) comprises at least two parts (2, 3), joined to each other by means of a shaft (4) parallel to said translating contact line at (20), a first part (2) thereof being attached (at 7) to an arm and a second part (3) thereof having a second attachment at (8) for a fine grinding or polishing block (14) with a flat working surface, so that when said block is applied against a surface to be treated, a two-dimensional surface contact will occur. <IMAGE></p> |
