Dispositivo para trabajo con muela

A grinding device (1) for the grinding of textile material sheets (1 a) is provided, which comprises a hollow box-like support (3) defining an inner chamber (3a); abrasive brushes (2), each defining an abrasive surface (2a), fastened to the box-like support (3); a vacuum unit (4) adapted to place the inner chamber (3a) under vacuum so as to suck the dust produced during the grinding process. The box-like support (3) comprises lateral bodies (31), each of which is interposed between a pair of adjacent abrasive brushes (2), laterally closing, together with the abrasive brushes (2), the inner chamber (3a) and defining intake slits (3c) between the abrasive brushes (2) and the lateral bodies (31), so that during the grinding process the lateral bodies (31) are not in contact with the textile material sheet (1 a), defining, together with the pair of adjacent abrasive brushes (2) and the textile material sheet (1 a), secondary chambers (3d) insulated from the outside and placed in connection with the inner chamber (3a) through the intake slits (3c) so as to be under vacuum.