DK200600255A - A brush module - Google Patents

Claims (10)

1. Brush module (1) for a rotary grinding brush ten! grinding of substantially planar articles, comprising the brush module (1): an elongated body portion (10) having two opposite side edges (14,15) and a plurality of bristles projecting from the body portion (10) at least one abrasive canvas (8) having an abrasive side (9) protruding from the body portion (10) substantially in the same direction as the bristles, characterized in that at each of said lateral edges (14, 15) there is provided an abrasive canvas ( 8) in such a way that the abrasive side (9) of the abrasive nails (8) faces away from each other, whereby the abrasive side (9) of each of said abrasive nippers (8), regardless of the direction of rotation of the abrasive brush, faces towards the substantially flat topic. Brush module according to claim 1, characterized in that the body part (10) is formed with mechanical interconnecting means adapted to cooperate with complementary mechanical interconnecting means on the abrasive canvas (8) so that the abrasive canvas (8) is removably mounted on the body part (10). ). Brush module according to claim 1 or 2, characterized in that said mechanical interconnecting means on the body part (10) comprises an undercut longitudinal groove (11,12) and the abrasive canvas (8) is provided at one edge with a protruding bead (31). ) which is complementary to the cut groove (11,12). Brush module according to any of claims 1-3, characterized in that said protruding bead (31) is provided on a holder (30) comprising two tabs (32, 33) between which the abrasive canvas (8) is mounted. . Brush module according to any one of claims 1 to 4, characterized in that the bristles are mounted in the body part (10) at substantially the same distance to each of said longitudinal grooves (11, 12). Brush module according to any one of claims 1-5, characterized in that it comprises a coupling part (13) for coupling with complementary connecting parts on a grinding brush, which coupling part (13) protrudes from the body part (10) in the opposite direction. of the abrasive canvas (8) and the bristles. Brush module according to claim 6, characterized in that the abrasive brush is arranged with a circular abrasive plate having a center of rotation (21) and a first (22) and a second side, from which a rotation shaft extends perpendicular to the first side from said one. center of rotation (21), wherein said abrasive plate (20) comprises a plurality of undercut grooves (23) extending radially from said center of rotation, wherein brush modules (1) are mounted according to any of claims 1-5. Brush module according to any one of the preceding claims, characterized in that the abrasive canvas (8) in the groove 11 has a grinding characteristic different from the abrasive canvas (8) in the groove 12. A method of grinding a substantially flat article with a brush module (1) for a rotary grinding brush, according to any one of claims 1-8, in a grinding machine comprising a conveyor and a rotary grinding brush, the method comprising the following features : - inserting the substantially planar article onto the conveyor in an operator position; - conveying the workpiece to the conveyor in a conveying direction away from the operator position to another position after the grinding brush; - grinding a surface of the rotary grinding brush workpiece. with abrasive cloths (8) arranged in connection with said means of transport for grinding the workpiece by the rotation of the grinding brush in a first direction of rotation, characterized by comprising the further step: - changing the rotation of the grinding brush to a second direction opposite said first direction of rotation, and - changing the direction of transport of the carrier to transport the item from said second position to said operator position, thus grinding the workpiece with abrasive nails adapted for grinding the workpiece by the rotation of the grinding brush in said second direction of rotation, - removing the substantially planar workpiece on the conveyor in said operator position. Method according to claim 9, characterized in comprising detecting said subject with sensor means arranged at said second position, said sensor means being connected to a computer unit which, on the basis of said signal (A), gives messages to control means arranged for controlling the directions of rotation of the grinding brush and the conveyor, respectively, to change the direction of rotation of the grinding brush and the conveyor.