Patent ID: 6986703

Claim:
An apparatus ( 10 ) for the processing of substantially planar workpieces ( 14 ), which can be moved in a transport plane ( 34 ) relatively to the apparatus ( 10 ), the apparatus containing at least one grinding head ( 18 a, 18 b, 18 c, 18 d ) with a tool carrier ( 20 ) rotatable around a carrier axis ( 22 ) which is orthogonal with respect to the transport plane ( 34 ) and with several grinding brushes ( 24 , 40 , 46 ) drivable by a planetary gear drive and containing a brush body ( 30 , 44 , 50 ) and bristles attached thereto ( 32 , 42 , 48 ) being mounted to the tool carrier so that they can be rotated individually around their individual brush axes ( 26 ) which are orthogonal with respect to the transport plane ( 34 ), wherein the ends of the bristles ( 32 , 42 , 48 ) of each single grinding brush ( 24 , 40 , 46 ) are arranged at various distances to the transport plane ( 34 ).