DEVICE FOR ADJUSTING AN EDGING ROLL OF AN EDGING STAND

Abstract

The invention relates to a device 1 for positioning an edging roll 10 of an edging stand, comprising an edging frame 12 to which at least one balancing cylinder 14 is attached, a balancing crossbeam 16 with a drive side 18 positioned opposite of the edging frame 12, and a working side 19 positioned opposite of the drive side 18, wherein a bearing device 20 for the edging roll 10 can be attached, in particular in an interlocking manner, to the balancing crossbeam 16 on the working side 19 thereof and at least one linkage 24 is provided on the drive side 18 thereof, by which linkage the balancing cylinder 14 is in an operative connection with the balancing crossbeam 16, and at least one positioning cylinder 26 attached to the edging frame 12 can be brought into an operative connection with the bearing device (20) in the direction of a rolled material in order to position the edging roll 10 against the rolled material, wherein the compressive force generated by the positioning cylinder 26 acts on the bearing device 20 along an operational axis 28, which either intersects with the at least one linkage 24 by which the balancing cylinder 14 is operatively connected with the balancing crossbeam 16 or runs directly alongside this linkage 24.

Claims

1. Device (1) for positioning an edging roll (10) of an edging stand, comprising an edging stand (12), to which at least one balancing cylinder (14) is attached, a balancing crossbeam (16) with a drive side (18) positioned opposite the edging stand (12) and a working side (19) positioned opposite the drive side (18), such that on the balancing crossbeam (16), on its working side (19), a bearing device (20) for the edging roll (10) can be attached, specifically in an interlocking manner, and that on its drive side (18) at least one linkage (24) is provided, by which the balancing cylinder (14) is in an operative connection with the balancing crossbeam (16), and at least one positioning cylinder (26) arranged on the edging stand (12), which can be brought into an operative connection with the bearing device (20) in the direction of a rolled material in order to position the edging roll (10) against the rolled material, wherein the compressive force generated by the positioning cylinder (26) acts on the bearing device (20) along an operational axis (28), which either intersects with the at least one linkage (24) by which the balancing cylinder (14) is operatively connected with the balancing crossbeam (16), or runs directly alongside this linkage (24) so that no tilting moment is applied to the bearing device (20) and the edging roll (10) supported therein.

2. Device (1) according to claim 1, characterized in that two balancing cylinders (14) and between them the positioning cylinder (26) are arranged on the edging stand (12), such that actuation media (15) of the respective balancing cylinders (14) are articulated on the drive side (18) of the balancing crossbeam (16), such that between the edging stand (12) and the balancing crossbeam (16), a supplementary component (30) is arranged, with which an actuator (27) of the positioning cylinder (26) can be brought into an operative connection, such that the supplementary component (30) positioned opposite of the drive side (18) of the balancing crossbeam (16) features two elongated pressure pins (32), whose longitudinal axis defines the operational axis (28) and that reach across the balancing crossbeam (16), such that the compressive force of the positioning cylinder (26) is branched out to the two pressure pins (32) and can be transmitted onto the bearing device (20) for the edging roll (10) on the working side (19) of the balancing crossbeam (16).

3. Device (1) according to claim 2, characterized in that the point of contact between the actuator (27) of the positioning cylinder (26) and the supplementary component (30) is embodied in a convex manner.

4. Device (1) according to claim 2, characterized in that the actuator (27) of the positioning cylinder (26) can be connected with the supplementary component (30) by a cylinder head (36), such that transverse forces operating on the pressure pins (32) and/or on the supplementary component (30) in the direction transverse to the operational axis (28) are transmitted to the positioning cylinder (26) in a reduced manner, or not at all.

5. Device (1) according to claim 2, characterized in that the actuator (27) of the positioning cylinder (26) is connected with the supplementary component (30) by an articulate joint.

6. Device (1) according to claim 1, characterized in that two positioning cylinders (26) and between them a balancing cylinder (14) are arranged on the edging stand (12), such that the positioning cylinders (26) are connected with elongated pressure pins (32) whose longitudinal axis defines the operational axis (28), and which reach across the balancing crossbeam (16), such that the compressive force of the respective positioning cylinder (26) on the working side (19) of the balancing crossbeam (16) can be transmitted onto the bearing device (20) for the edging roll (10), such that between the edging stand (12) and the balancing crossbeam (16), a supplementary component (30) is arranged, with which an actuator (15) of the balancing cylinder (14) is connected, such that the supplementary component (30) is connected with the drive side (18) of the balancing crossbeam (16) by two linkages (24).

7. Device (1) according to claim 1, characterized in that the bearing device (20) for the edging roll (10) consists of an upper edging roll chock (21) and a lower edging roll chock (22), such that the edging roll (10) is incorporated on bearings between the edging roll chocks (21, 22).

8. Device (1) according to claim 2, characterized in that the pressure pins (32) in the balancing crossbeam (16) are longitudinally guided in slide bearings (38), and preferentially, that the slide bearings (38) are provided with lubrication.

9. Device (1) according to claim 2, characterized in that the supplementary component (30) positioned opposite of on the edging stand (12) features at least one guide pin (40) that is longitudinally guided in slide bearings (42) attached in the edging stand (12), and preferentially, that the slide bearings (42) are provided with lubrication.

10. Device (1) according to claim 9, characterized in that the pressure pins (32) and the guide pins (40) are embodied in one piece.

11. Device (1) according to claim 2, characterized in that a contact surface is formed on the bearing device (20) for the edging roll (10), by which the front face of a pressure pin (32) can be brought into a contact position in case of an actuation of the positioning cylinder (26).

12. Device (1) according to claim 11, characterized in that the point of contact between the front face of a pressure pin (32) and the contact surface of the bearing device (20) is embodied in a convex manner, such that a point contact is formed on the point of contact.

13. Device (1) according to claim 3, characterized in that the point of contact is embodied as a point contact or as a surface contact.

14. Device (1) according to claim 3, characterized in that the point of contact is embodied either by respective convex surfaces or by one convex surface and one concave surface.

15. Device (1) according to claim 1, characterized in that a movement path of the balancing cylinder (14) in the direction of the rolled material is longer than a movement path of the positioning cylinder (26), such that the edging roll (10) can only be moved into the middle of a rolling line on which the device (1) is positioned through the actuation of the balancing cylinder (14).

16. Device (1) according to claim 1, characterized in that the at least one positioning cylinder (26) is hydraulically or electrically driven, and preferentially, that the positioning cylinder (26) can only be operated in one direction, specifically, in the direction of the rolled material.

17. Device (1) according to claim 1 characterized in that the at least one balancing cylinder (14) hydraulically or electrically driven, and preferentially, that the balancing cylinder (14) can be operated in both directions, such that the balancing crossbeam (16) and therefore the bearing device (20) for the edging roll (10) can be moved back and forth by the balancing cylinder (14).

18. Device (1) according to claim 1, characterized in that at least one position sensor (44, 46) is provided, such that the position sensor is in a signal connection with an evaluation device, such that a current positions of the edging roll (10) can be determined.

19. Device (1) according to claim 18, characterized in that the evaluation device is in a signal connection with a control device for the balancing cylinder (14) and for the positioning cylinder (26), such that the balancing cylinder (14) and/or the positioning cylinder (26) can be controlled as a function of a measurement signal from the position sensor (44, 46), and preferentially, that the control of the balancing cylinder (14) and/or of the positioning cylinder (26) can be regulated.

Description

[0027] The drawings show:

[0028] FIG. 1 a simplified lateral cross-sectional view of a device according to the invention;

[0029] FIG. 2 a simplified lateral cross-sectional view of a device according to the invention according to a different embodiment;

[0030] FIG. 3 a simplified lateral cross-sectional view of a device according to the invention according to another different embodiment, and

[0031] FIG. 4 a simplified lateral cross-sectional view of a device according to the invention according to yet another embodiment.

[0032] In FIGS. 1 through 4, respectively different embodiments of a device 1 according to the present invention are shown. For identical parts, respectively identical reference numbers are used.

[0033] FIG. 1 shows a simplified lateral cross-sectional view of the device 1, comprising an edging roll 10 and an edging frame 12, in which two balancing cylinders 14 are arranged. Between the edging roll 10 and the edging frame 12, a balancing crossbeam 16 is arranged, having a drive side 18 and a working side 19. On the working side 19 of the balancing crossbeam 16, a bearing device 20 is attached, preferentially in an interlocking manner, such that the bearing device 20 comprises an upper edging roll chock 21 and a lower edging roll chock 22. The edging roll 10 is incorporated on bearings between these edging roll chocks 21, 22. A translatorily and preferentially horizontal shift of the edging roll 10 is guaranteed by the fact that the edging roll chocks 21, 22 are respectively arranged or mounted on bearings on guide rails F in a slidable manner.

[0034] The balancing cylinders 14 respectively comprise actuation media 15, which are connected by a linkage 24 with the drive side 18 of the balancing crossbeam 16.

[0035] In the edging frame 12, between the two balancing cylinders 14, a positioning cylinder 26 is arranged, the actuator 27 of which interacts with a supplementary component 30. The supplementary component 30 features two pressure pins 32 opposite of the drive side 18 of the balancing crossbeam 16, which extend through passage holes 34 embodied in the balancing crossbeam 16 in the direction of the bearing device 20 or of the edging roll chocks 21, 22.

[0036] A free front end of the actuator 27 of the positioning cylinder 26 may be connected with the supplementary component 30 by a cylinder head 36. In the alternative, it is also possible that the free front end of the actuator 27 be connected with the supplementary component 30 by an articulated joint connection.

[0037] At this point, it bears pointing out that FIG. 1 only shows a half section of a device according to the invention, as demonstrated by the vertical symmetry line on the right border of the image.

[0038] The invention functions as follows:

[0039] Upon the actuation of the positioning cylinder 26, its actuator 27 is moved outward, which in the drawing plane of FIG. 1 is from left to right. As a result, the supplementary component 30, and in combination with it also the two pressure pins 32, are moved into the same direction, such that the free front faces of the pressure pins 32 are brought into contact with the edging roll chocks 21, 22. With their longitudinal axis, the pressure pins 32 respectively define an operational axis 28, along which the compressive force generated by the positioning cylinder 26 is transmitted to the bearing device 20, and therefore to the edging roll 10 incorporated on it on bearings. While, as previously explained, the positioning cylinder 26 exerts a compressive force in the direction of the bearing device 20, a tensile force is exerted by the balancing cylinder 14 on the balancing crossbeam 16. Through the interplay between the compressive force generated by the positioning cylinder 26 and the tensile force generated by the balancing cylinders 14, the joints of the device 1 are advantageously freed of play, resulting in a high-precision translatory shift of the edging roll 10 in the direction a (not illustrated) rolled material. For the positioning of the edging roll 10 against the rolled material, it should be understood that the compressive force generated by the positioning cylinder 26 is larger than the tensile force generated by the balancing cylinder 14.

[0040] The representation in FIG. 1 demonstrates that the operational axis 28, along which the compressive force is applied to the bearing device 20, runs immediately alongside the respective linkage 24, by which the actuation media 15 of the respective balancing cylinders 14 are connected with the drive side 18 of the balancing crossbeam 16. Therefore, even in the event that the forces of the balancing cylinders 14 on the one hand and of the positioning cylinder 26 on the other hand do not cancel each other out or exist in equilibrium, there will not be a tilting moment on the balancing crossbeam 16 and on the bearing device 20 attached to it, such that a precise positioning of the edging roll 10 is still ensured.

[0041] It bears pointing out once more that a positioning of the edging roll 10 against a (not illustrated) rolled material is achieved exclusively by an actuation of the positioning cylinder 26, such that the pressure pins 32 extending through the passage holes 34 in the balancing crossbeam 16 in the direction of the bearing device 20 press against the edging roll chocks 21, 22. At the same time, a tensile force is exerted via the balancing cylinders 14, which acts on the balancing crossbeam 16 via the linkage 24 in order to ultimately realize a p[lay between the components of the device 1. According to a simplified embodiment, the positioning cylinder 26 may be embodied such that its actuator 27 only exerts a force in one direction, specifically from left to right in the drawing plane of FIG. 1. A resetting of the positioning cylinder 26 in the opposite direction, in other words, from right to left in the drawing plane of FIG. 1, may then occur automatically when the positioning cylinder 26 is without power, while a tensile force continues to be exerted on the balancing crossbeam 16 by the balancing cylinders 14.

[0042] FIG. 2 shows an additional embodiment of the device according to the invention 1. In a further development of the embodiment of FIG. 1, the passage holes 34 feature slide bearings 38 in order to translatorily guide the pressure pins 32 in their horizontal shift. In all other respects, the other parts of the embodiment of FIG. 2 correspond to those of FIG. 1. We refer to the explanation of FIG. 1 in order to avoid repetitions.

[0043] FIG. 3 shows a simplified lateral cross-sectional view of an additional embodiment of the device 1 in which the supplementary component 30 positioned opposite of the edging frame 12 features two guide pins 40, respectively guided longitudinally in slide bearings 42 provided in the edging frame 12. Expediently, the guide pins 40 and the pressure pins 32 may be embodied in one piece.

[0044] FIG. 4 shows a simplified lateral cross-sectional view of an additional embodiment of the device according to the invention 1, constituting a combination of the embodiments of FIGS. 2 and 3. This means that in the embodiment according to FIG. 4, both the pressure pins 32 and the guide pins 40 are guided longitudinally in slide bearings 34 or 42, respectively, these slide bearings being provided in the balancing crossbeam 16 and in the edging frame 12, respectively. The slide bearings 34 and 42 may be embodied as guide bushings. In the alternative, it is also possible for such slide bearings to be embodied as flat tracks or in the form of a spherical embodiment. In any event, the slide bearings are adjusted to a respective cross-sectional shape of a pressure or guide pin 32, 40.

[0045] Identically to the pressure pins 32, the guide pins 40 may be suitably embodied in their cross section as well. They may, for instance, be circular, square, rectangular, triangular, or polygonal. In particular in the event that the guide pins 40 and the pressure pins 32 are embodied in one piece, it is expedient that their cross-sectional shape be identical.

[0046] With respect to the embodiments according to the FIGS. 2 through 4, it bears pointing out that the guidance of the pressure pins 32 or the guide pins 40 in the associated respective slide bearings improve the precision of a translatorily shift of the supplementary component 30 even further, and that as result, the positioning of the edging roll 10 against a rolled material is optimized.

[0047] With respect to all embodiments of the device 1 according to the present invention, it bears pointing out that the balancing cylinder 14 can be embodied such that in comparison to the positioning cylinder 26, they may feature a much longer movement path in the direction of the middle of a rolling line. By a respective actuation of the balancing cylinders 14, it is therefore possible to move the bearing device 20, and therefore also the edging roll 10, until the middle of a rolling line, for instance for maintenance the purposes or in order to replace the edging roll 10. In case of such a long movement of the bearing device 20 towards the middle of a rolling line, the positioning cylinder 26 is not actuated, such that the pressure pins 32 are not moved either, because their front faces are not attached to the edging roll chocks 21, 22.

[0048] For the balancing cylinder 14 and the positioning cylinder 26, respective position sensors 44 may be provided, by means of which a respective current position of the actuator 15 of the respective balancing cylinders 14 or of the actuator 27 of the positioning cylinder can be specified, and similarly, a conclusion about the current position of the bearing device 20 and the edging roll 10 mounted on it is possible. For these purposes, the position sensors 44 are in a signal connection with an evaluation device (not shown).

[0049] It is further possible to provide a position sensor 46 adjacent to the bearing device 20 for the edging roll, such that this position sensor 46 is also in a signal connection with an evaluation device (not shown). Accordingly, a current position in the rolling station of the bearing device 20 and of the edging roll 10 mounted on it can be determined by means of this position sensor 46 and the evaluation device with which it is connected.

[0050] For the purpose of simplification, the position sensors 44, 46 are shown in a symbolic greatly simplified manner only for the embodiment of FIG. 1 and may be similarly provided for the embodiments of FIGS. 2 through 4 as well.

[0051] If position sensors 44 are provided for the balancing cylinder 14 and the positioning cylinder 26, and a position sensor 46 is provided for the bearing device 20 as well, these position sensors 44, 46 may be in a signal connection with a joint evaluation device.

[0052] An actuation of the balancing cylinders 14 and of the positioning cylinder 26 may be done by a control device (not shown). For these purposes, the control device may be in a signal connection with the evaluation device, such that control of the balancing cylinders 14 and/or of the positioning cylinder 26 is accomplished as a function of a measurement signal from at least one position sensor. This means that the balancing cylinder 14 and/or the positioning cylinder 26 are controlled as a function of the respective current position of their actuation media 15, 27 or respectively of the current position of the edging roll 10 in the rolling station, if applicable taking into account associated target positions. The actuation of the balancing cylinders 14 and of the positioning cylinder 26 by the control device can expediently be done in a regulated form, for which purpose the control device is equipped with a respective regulation circuit. In conclusion, it bears pointing out that the evaluation device and the control device may also be integrated into a joint control unit.

REFERENCE LIST

[0053] 1 Reference list [0054] 10 edging roll [0055] 12 edging stand [0056] 14 balancing cylinder [0057] 16 balancing crossbeam [0058] 18 drive side [0059] 19 working side [0060] 20 bearing device [0061] 24 linkage [0062] 26 positioning cylinder [0063] 27 actuator [0064] 28 slide bearings [0065] 30 supplementary component [0066] 32 pressure pin [0067] 40 guide pin [0068] 44 position sensor [0069] 46 position sensor