| 摘要 |
It is disclosed an engraving machine for planar slabs, comprising a rectilinear bar (1) and a carriage (2) mounted freely sliding along said guiding bar (1) and carrying an engraving tool (U), wherein
said rectilinear guiding bar (1) has a lower surface provided with yielding support means made of high-friction material (3), and
said engraving tool (U) is integral with a pressure plate (23) movably mounted relative to a frame (21) of said carriage (2), having at least a displacement component perpendicular to said lower surface, in opposition to elastic means (24). |
