Device and method for machining the edges of casting strands

Abstract

A device for machining the edges of casting strands includes one machining tool each that can be brought into contact with a longitudinal edge of the casting strand, and at least one guide element for perpendicularly applying the machining tools to the longitudinal edges. Means are provided for moving the machining tools in parallel to the longitudinal edges of the casting strands, in order to modify the relative speed between the longitudinal edges and the machining tools.

Claims

1.-13. (canceled)

14. A device (1) for machining edges of a casting strand (2), comprising: machining tools (3) that can be brought into contact with longitudinal edges of the casting strand (2); and a guide element (4) for perpendicularly applying the machining tools (3) to the longitudinal edges; and means (5) for moving the machining tools (3) parallel to the longitudinal edges of the casting strand (2) configured to modify a relative speed between the longitudinal edges and the machining tools (3).

15. The device (1) according to claim 14, wherein the casting strand (2) is a slab, a sheet, or a continuously cast casting strand.

16. The device (1) according to claim 14, wherein the tools (3) comprise a chisel.

17. The device (1) according to claim 14, wherein the tools (3) comprise an edge planer.

18. The device (1) according to claim 14, wherein the guide element (4) is a carriage with means for pneumatic or hydrostatic application of force to the machining tools (3).

19. The device (1) according to claim 18, wherein the carriage is connected to rolls that can be brought into contact with two opposing surfaces of the casting strand (2) for lateral tracking of the carriage in relation to positional changes of the casting strand (2) within the device (1).

20. The device (1) according to claim 18, wherein the carriage is mounted in a horizontal sliding manner on at least one vertically arranged column (6).

21. The device (1) according to claim 18, wherein the carriage is mounted in a horizontal sliding manner on two vertically arranged columns (6).

22. The device (1) according to claim 14, wherein an oscillating movement of the tools (3) relative to the longitudinal edges can be effected by the means (5) for moving the machining tools (3).

23. The device (1) according to claim 14, wherein the means (5) for moving the machining tools (3) comprise an eccentric drive (7) by which an oscillating movement of the machining tools (3) can be effected.

24. The device (1) according to claim 23, wherein the eccentric drive (7) is an eccentric motor.

25. The device (1) according to patent claim 23, wherein a rotational speed and/or an eccentricity of the eccentric drive (7) can be variably set.

26. The device (1) according to claim 14, wherein the means (5) for moving the machining tools (3) comprises a spring (5).

27. The device (1) according to claim 24, wherein the means (5) for moving the machining tools (3) comprises a leaf spring-guided carriage (8) between the eccentric drive and the machining tools.

28. A system, comprising: the device (1) according to claim 14; and the casting strand (2) having longitudinal edges, the casting strand (2) being continuously cast at a constant casting speed.

29. A method for machining edges of a casting strand (2), comprising providing a machining tool (3) that can be brought into contact with an edge of the casting strand (2), and at least one guide element (4) for perpendicularly applying the machining tools (3) to the edges; and moving the machining tool (3) parallel to longitudinal edges of the casting strand (2) and thereby changing a relative speed between the longitudinal edges and the machining tool (3).

30. The method according to claim 29, wherein moving the machining tool (3) is performed in an oscillating manner parallel to the longitudinal edges of the casting strand (2) by an eccentric drive.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG. 1 shows a sectional side view of an edge planer for a continuously cast strand according to the prior art.

[0017] FIG. 2 shows a sectioned plan view of a device for machining the edges of casting strands.

[0018] FIG. 3 shows a side view of a device for machining the edges of casting strands.

DETAILED DESCRIPTION

[0019] FIG. 1 shows a sectional side view of a device 1 for machining the edges of casting strands 2 according to the prior art. The casting strand 2 is fed through the device 1 from left to right at casting speed and thereby passes four edge planers (not shown), which are fed to the longitudinal edges of the casting strand 2 by means of linear adjustments 4. A means for modifying the relative speed between the edge planers (not shown) and the longitudinal edges of the casting strand 2 is not provided; the speed of the edge processing is predetermined solely by the speed of the casting strand 2 through the device 1.

[0020] FIG. 2 shows a top view of a device 1 for machining edges of a casting strand. In the figurative representation from the bottom left to the top right, a casting strand (not shown) runs through the device 1, thereby passing four chisels 3, which on the one hand are fed perpendicularly onto the strand (not shown) by means of a pneumatic adjustment and on the other hand perform an oscillating movement in the orientation and amplitude of the movement arrows 11 shown. This causes a regular modification in the relative speed between the chisels 3 and the longitudinal edges of the casting strand (not shown). Upon entering the device 1, the casting strand (not shown) passes rolls 10, which come into contact with the casting strand (not shown) and can therefore follow a sideways movement of the casting strand (not shown). The rolls 10 are in turn connected to the carriage 8 in such a way that a movement of each roll 10 towards or away from the casting strand (not shown) is transmitted directly to the carriage 8. This carriage 8 in turn is mounted on the strand exit side of the carriage 8 so that it can pivot about a fixed point, as a result of which it is ensured that the carriage 8 and the chisels 3 guided in it are permanently and evenly positioned on the casting strand (not shown). Finally, a vertical column guide element 6 enables the horizontal slide of the carriage 8 in the plane in which the casting strand (not shown) passes through the device 1.

[0021] FIG. 3 shows a side view through a preferred embodiment of a device 1 for machining edges of a casting strand, in which the eccentric drive 7 is shown, by means of which a periodically acting deflection of the carriage 8 relative to the direction of movement of the casting strand (not shown) is effected by the device 1. The eccentric drive 7 transmits an oscillation dependent on its rotational speed and an oscillation amplitude dependent on its eccentricity to the carriage 8, which performs an oscillating movement to the left and right in the figure. The carriage 8 in turn is mounted between two leaf springs 9, by means of which the oscillating movement transmitted from the eccentric drive 7 to the carriage 8 is damped and cushioned in the desired manner.

LIST OF REFERENCE SIGNS

[0022] 1 Device [0023] 2 Casting strands [0024] 3 Tools [0025] 4 Perpendicular guide element [0026] 5 Means for parallel movement [0027] 6 Vertical column [0028] 7 Eccentric drive [0029] 8 Leaf spring-guided carriage [0030] 9 Spring/leaf spring [0031] 10 Roll guide element [0032] 11 Movement arrows