Grinding machine

Abstract

The present invention relates to a grinding machine for grinding a surface of a workpiece, having at least one transport device for transporting a workpiece in a transport direction through the grinding machine, and at least one grinding tool (2), wherein the grinding tool (2) has at least one brush with grinding bristles,
wherein the grinding machine has a leveling unit.

Claims

1. A grinding machine for grinding a surface of a workpiece, comprising: at least one transport device for transporting a workpiece hi a transport direction through the grinding machine; at least one grinding tool that has at least one brush with grinding bristles; and a leveling unit.

2. The grinding machine according to claim 1, wherein the leveling unit has at least one leveling tool for shortening at least some of the grinding bristles.

3. The grinding machine according to claim 2, wherein the at least one leveling tool is arranged so as to be displaceable in a direction perpendicular to the transport direction.

4. The grinding machine according to claim 2 wherein at least one of the at least one grinding tool and the at least one leveling tool is arranged so as to be height-adjustable.

5. The grinding machine according to claim 2 further comprising a multiplicity of disk brushes which revolve along a revolving contour, and wherein the at least one leveling tool is arranged adjacent to the at least one transport device.

6. The grinding machine according to claim 2 further comprising a measuring device for measuring a length of at least some of the grinding bristles.

7. The grinding machine according to claim 6, wherein the measuring device is designed to measure the length of the grinding bristles at different points of the at least one grinding tool, and further comprising an electrical controller designed to bring the at least one leveling tool into engagement with the grinding bristles if a length difference between different bristles exceeds a predetermined threshold value.

8. The grinding machine according to claim 7, wherein the predetermined limit value is dependent on the length of the grinding bristles.

9. The grinding machine according to claim 1 further comprising an imbalance measuring device for measuring an imbalance of the at least one grinding tool.

Description

[0041] An exemplary embodiment of the present invention will be discussed in more detail below on the basis of the appended drawing. In the drawing:

[0042] FIG. 1shows a schematic illustration of a part of a grinding machine according to a first exemplary embodiment of the present invention.

[0043] FIG. 1 shows a detail of a grinding machine according to an exemplary embodiment of the present invention. The FIGURE shows the grinding tool 2, which in this case is in the form of a brush roller. It has, on its shell surface 4, a multiplicity of grinding bristles (not illustrated).

[0044] The grinding tool 2 is mounted on two mountings 6, and is driven by means of a motor 8 and a power transmission belt 10. Said grinding tool is rotatable about a longitudinal axis which runs through the mountings 6.

[0045] Above the grinding tool 2, there is situated a leveling tool 12 which, in this case, is a small rotating disk with a relatively sharp edge. Said leveling tool is arranged on a holder 14, in which a drive 16 for the leveling tool 12 is also situated. In the exemplary embodiment shown, the leveling tool 12 is, with the holder 14, movable to the left and to the right along a linear guide 18. In this way, said leveling tool can reach every point along the width of the grinding tool 2.

[0046] In the exemplary embodiment shown, the grinding tool 2 and the mountings 6 are mounted in displaceable fashion by a height adjustment means 20. In this way, a spacing between the shell surface 4 of the grinding tool 2 and the leveling tool 12 can be adjusted in continuously variable fashion. An adjustment motor 22 is provided for the height adjustment means 20.

[0047] If the height adjustment means 20 is activated and, for example in the illustration shown, the grinding tool 2 is raised relative to the leveling tool 12, and the leveling tool 12 is moved to the right and to the left by means of the linear guide 18, the leveling tool 12 comes into contact with the grinding bristles (not illustrated) situated on the shell surface 4 of the grinding tool 2 and shortens said bristles to the desired length. Owing to the centrifugal force of the rotating grinding tool, it is ensured that, in the embodiment shown, all of the grinding bristles are shortened to the same length.

LIST OF REFERENCE DESIGNATIONS

[0048] 2 Grinding tool [0049] 4 Shell surface [0050] 6 Mounting [0051] 8 Motor [0052] 10 Power transmission belt [0053] 12 Leveling tool [0054] 14 Holder [0055] 16 Drive [0056] 18 Linear guide [0057] 20 Height adjustment means [0058] 22 Adjustment motor