WALL COMPONENT

Abstract

A work container for a vibratory grinding system has a wall component that is provided with macro elevations and with micro elevations.

Claims

1. A wall component of a work container for a vibratory grinding system, said wall component comprising an outer jacket surface which extends about a center axis, and an inner wall that is provided with a profiling that has a microstructure in the form of parallel micro elevations and micro depressions, wherein a macrostructure in the form of macro elevations is superposed on the microstructure.

2. The wall component according to claim 1, wherein said outer jacket surface is a circular cylindrical outer jacket surface.

3. The wall component according to claim 1, wherein the macro elevations extend at least for the most part parallel to the micro elevations.

4. The wall component according to claim 1, wherein the micro elevations and micro depressions in the region of the macro elevations have the same cross-sectional shape as outside the macro elevations.

5. The wall component according to claim 1, wherein the macro elevations have, in a sectional plane extending perpendicular to the center axis, an outer contour that is symmetrical to a radial beam.

6. The wall component according to claim 5, wherein the outer contour is of a circular arc shape.

7. The wall component according to claim 1, wherein the micro elevations and micro depressions have, in a sectional plane extending perpendicular to the center axis, a contour that is symmetrical to a radial beam.

8. The wall component according to claim 7, wherein the contour is of a circular arc shape.

9. The wall component according to claim 1, wherein two macro elevations are disposed diametrically opposite one another in each case.

10. The wall component according to claim 1, wherein the macro elevations are chamfered at at least one axial end.

11. The wall component according to claim 1, wherein all the elevations are part of a coating.

12. The wall component according to claim 11, wherein the coating is composed of plastic.

13. A work container for a vibratory grinding system, said work container comprising a wall component and a base, said wall component comprising an outer jacket surface which extends about a center axis, and an inner wall that is provided with a profiling that has a microstructure in the form of parallel micro elevations and micro depressions, wherein a macrostructure in the form of macro elevations is superposed on the microstructure.

14. The work container according to claim 13, wherein the base is a turntable.

15. A method for the vibratory grinding of components in a work container, said work container comprising a wall component and a base, said wall component comprising an outer jacket surface which extends about a center axis, and an inner wall that is provided with a profiling that has a microstructure in the form of parallel micro elevations and micro depressions, wherein a macrostructure in the form of macro elevations is superposed on the microstructure, wherein the components have a minimum dimension of D.sub.min, the micro depressions have, in a sectional plane extending perpendicular to the center axis, a circular arc-shaped contour that is symmetrical to a radial beam and that has a radius R.sub.Micro, and the macro elevations have, in a sectional plane extending perpendicular to the center axis, a circular arc-shaped contour that is symmetrical to a radial beam and that has a radius R.sub.Macro, wherein R.sub.Macro is greater than R.sub.Micro, and R.sub.Micro is between 0.5 and 2 times D.sub.min, and/or R.sub.Macro is between 3 and 50 times D.sub.min.

16. A method according to claim 15, wherein R.sub.Macro is at least ten times or at least twenty times greater than R.sub.Micro.

17. A method according to claim 15, wherein R.sub.Macro is at least twenty times greater than R.sub.Micro.

18. A method according to claim 15, wherein R.sub.Macro is at least thirty times or at least forty times greater than R.sub.Micro.

19. A method according to claim 15, wherein R.sub.Macro is at least fifty times greater than R.sub.Micro.

Description

[0020] The present invention will be described in the following purely by way of example with reference to an advantageous embodiment and to the enclosed drawings. There are shown:

[0021] FIG. 1 a section through a work container with a wall component and a turntable as the base;

[0022] FIG. 2 a sectioned plan view of the work container of FIG. 1; and

[0023] FIG. 3 a section through a macrostructure of the inner wall.

[0024] FIG. 1 shows a work container 10 for a vibratory grinding system, said work container 10 being composed of a wall component 12 and a base that is configured as a turntable 14 in the embodiment example shown. In the embodiment example shown, the wall component 12 is configured as a hollow cylinder having a center axis M that simultaneously forms an axis of rotation of the turntable 14. The wall component 12 has a circular cylindrical outer jacket surface 16 and an inner wall 18 that is formed by a coating 20, for example a polyurethane coating 20, that is applied to a steel jacket or plastic jacket 22 forming the outer jacket surface 16.

[0025] The turntable 14 forming the base of the work container 10 is likewise provided with a coating 24 at its inner side, wherein drainage openings 26 extend through the coating 24 and the base 14. Furthermore, the coating 24 has radially extending rib-shaped elevations 28 that serve as entrainers.

[0026] As the Figures illustrate, the inner wall 18 of the wall component 12 is provided with a profiling. On the one hand, said profiling consists of a microstructure 30 in the form of a plurality of parallel micro elevations and micro depressions that are located along the entire inner circumference in the axial direction at the inner wall 18. The microstructure 30 extends in the axial direction, i.e. parallel to the center axis M, from the upper side of the wall component 12 up to a region in which the inner wall 18 begins to taper slightly in the direction of the center axis M.

[0027] Furthermore, a macrostructure in the form of macro elevations 32 is superposed on the microstructure 30 at the inner wall 18. Said macro elevations 32 extend for the most part parallel to the micro elevations 30, but can be chamfered at their upper and/or lower axial end so that slanted surfaces 34 and 36 inclined towards one another result.

[0028] FIG. 3 shows a section through the coating 20 of the work container 10 in the region of a macro elevation 32. As can be seen, the surface of the macro elevations 32 facing into the container interior is provided with the same micro elevations 30 as the rest of the inner wall. The micro elevations 30and correspondingly also the micro depressions formed by the micro elevationshave the same cross-sectional shape in the region of the macro elevations 32 as outside the macro elevations 32, namely a circular arc-shaped contour that is symmetrical to a radial beam 38 (FIG. 2) in a sectional plane perpendicular to the center axis M. On average, the micro elevations 30 thus have the shape of a periodic wave, as is characteristic, for example, of sine waves or waveforms composed of circular segments, wherein the circular segments are typically smaller than semicircles.

[0029] The macro elevations 32 likewise have, in a sectional plane extending perpendicular to the center axis M, an outer contour that is symmetrical to a radial beam 38 and that of a circular arc shape, wherein the radius of the circular arc has its origin outside the container interior. The elevations and depressions of the microstructure each have a radius R.sub.Micro that is the same for the elevations and for the depressions in order to form the sinusoidal wave structure of the microstructure 30. In this respect, R.sub.Micro can, for example, be 4 to 5 mm and R.sub.Macro can, for example, be 80 to 150 mm.

[0030] Finally, FIG. 2 illustrates that, in the embodiment shown, two macro elevations 32 are disposed diametrically opposite one another in each case, i.e., in the embodiment example shown, a total of four macro elevations 32 are provided that are superposed on the micro elevations 30.