JP3233508U - Equipment for processing the surface of rolls - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll stand which structurally simplifies a means for generating a relative motion between a roll and a processing element, which is necessary for processing a surface, and saves cost. SOLUTION: At least one roll 110 rotatably supported for molding a product, an axial moving device 120 for moving the roll in the axial direction, and at least one machining element 130-1 to 130-. Typically comprising N, at least one holding device 140 for the machining element, and an adjusting device 150 acting on the holding device for adjusting the machining element with respect to the rolls arranged in the roll stand. In the roll stand 100 for rolling a product in the form of a metal product, a holding device and / or an adjusting device is formed to fix the machining element in the axial direction L. [Selection diagram] Fig. 2

Description

The present invention relates to an apparatus for processing the surface of a roll, particularly in the field of the steel industry.

Such devices are basically known in the prior art.

Therefore, German Patent Application Publication No. 10333215 discloses methods and devices for cleaning the surface of work rolls, especially in roll stands for forming metal strips. For this purpose, cylindrical machining elements-specifically in the form of cleaning brushes-can be placed parallel to the work roll of the roll stand and adjusted radially with respect to the roll. Are known. The adjustment is performed by applying a radial adjusting force by the adjusting device. Both work rolls and cleaning brushes are bearing so that they can be moved in the axial direction. In the case of axial movement of the work roll, the cleaning brushes arranged in parallel are preferably moved together in the axial direction in synchronization.

Moving the Machining Element Axial In this case, typically at the same time, an adjusting device for adjusting the machining element in the radial direction with respect to the roll must also be moved along the axial direction. That is, the axial movement of the machining element and the radial adjustment must be synchronized. This is structurally demanding and associated with high costs.

German Patent Application Publication No. 10333215

The underlying challenge of the present invention is to structurally simplify and save costs by structurally simplifying well-known equipment for processing the surface of rolls when moving the rolls in the axial direction.

This problem is solved by the subject claimed in claim 1. This solution is characterized in that the machining element is axially fixed by a holding device and / or an adjusting device.

At the same time, while the roller or roll is moving in the axial direction, the roll and machining are performed by the requested fixation of the machining element in the axial direction L when the machining element is simultaneously adjusted or pressed in the radial direction against the roll with a desired adjusting force. The elements are relatively prime to each other in the axial direction. Based on this movement relative to each other while maintaining the adjusting force, the surface of the roll is advantageously processed as desired.

By fixing the machining element in the axial direction, one degree of freedom when moving the machining element is eliminated. That is, the machining element preferably needs to be adjusted only in the radial direction with respect to the roll or roller. A single (radial) adjustment of the machining element is structurally less complex than a simultaneous radial and axial movement. Costs can be saved accordingly. This is because, in particular, the axially moving device for moving the roll in the axial direction is typically present in any of the devices according to the present invention. Nevertheless, the relative movement of the roll and the machining elements required to machine the surface of the roll with each other is realized by the present invention, and good machining results are obtained accordingly.

The device according to the present invention allows the roll to be machined within the roll stand itself, while keeping the number of actuators required as small as possible. Dismantling to process the surface can be omitted, including the downtime required for that. The roll remains in its place of use within the roll stand.

Definition:

A roll in the sense of the present specification is, in particular, a work roll or an intermediate roll in a roll stand and is used for molding a product. The term "roll" can also mean rollers, especially for transporting products.

The term "processing" of the surface of a roll means cleaning, polishing, grinding or roughening the surface. Cleaning specifically means the removal of foreign matter or deposits from the surface without damaging the surface. Grinding, on the other hand, means the proper removal of the roll material from the roll surface to restore the desired surface contour. "Roughening" can be performed to compensate for surface wear and restore the required gripping conditions.

The adjusting device for adjusting the machining element especially in the radial direction can be formed hydraulically, electrically, pneumatically or mechanically, for example by a spring. The same applies to the axial moving device for rolls.

The term "working element" can mean an abrasive stone, a cleaning brush, or the like, depending on the desired processing of the surface of the roll in the above sense. The processed element can be formed non-rotatably or rotatably about its vertical axis. In particular, a plurality of machining elements, such as abrasive stones or cleaning brushes, which are arranged side by side in the axial direction and / or the circumferential direction can be provided. Typically, the machining elements are adjusted linearly with respect to the roll, i.e. in radial components. However, selectively or additionally, the adjustment can also be made, for example, by tilting or turning. In that respect, the adjustment is then done in multiple dimensions, in some cases.

The term "axial" means the direction of the vertical axis of the roll.

The term "radial" refers to the radial direction of the roll. However, the term also includes directions of motion that have only radial components.

The term "liquid" means, for example, a coolant, a cleaning fluid or a lubricating fluid, or any combination thereof.

An advantageous embodiment of the claimed device is the subject of a dependent claim.

A plurality of figures are attached to the specification.

Roll stand and holding device according to the present invention for machining elements according to the first embodiment Perspective view of the holding device according to the present invention including the processing element according to the first embodiment. Machining element with wipers placed in the holding device according to the second embodiment Machining elements (4a and 4b) attached to the holding device according to the third embodiment. Machining element with wiper element attached to the holding device according to the fourth embodiment

The present invention will be described in detail below with reference to the above figure of the embodiment. In all figures, the same technical elements are designated by the same code.

FIG. 1 shows a roll stand 100 according to the present invention. The roll stand has at least one rotatably bearing roll 110, preferably two work rolls, for forming a product, such as a metal strip. The axial movement device 120 according to FIG. 2 is provided to move the roll 110 in the axial direction, that is, in the direction of the vertical axis L thereof. Typically, a rotational drive device 160 is also provided to rotationally drive the roll 110. At least one processing element 130 is provided to process the surface of the roll. According to the first embodiment, the machining element 130 is adjusted by the adjusting device 150 via the holding device 140, preferably in the radial direction R with respect to the upper roll 110-o and / or the lower roll 110-u. NS. The adjusting device 150 is pivotally attached to the holding device 140 via the swivel joint 144. According to FIG. 1, the holding device 140 is formed in the form of an angle lever. The holding device is rotatably supported at one end thereof via a swivel joint 142 about a rotation axis, and the rotation axis preferably extends parallel to the vertical axis L of the roll 110. A processing element difference 130 is attached to the other end of the lever-shaped holding device 140. The adjusting device 150 is formed, for example, in the form of a hydraulic cylinder. However, optionally, the regulator can also be formed in any other form of drive, eg, pneumatically or electrically.

The adjustment of the machining element 130 can be made for one or more rolls 110 in the roll stand 100, especially for the upper and / or lower work rolls, as shown in FIG.

For the present invention, it is important that the holding device 140 is separated from the axial moving device 120 for the roll 110 together with the adjusting device 150 for the machining element. In particular, the holding device 140 or the adjusting device 150 is formed so as to fix the machining element 130 in the axial direction L so as to be fixed in the axial direction even while the roll 110 is moved in the axial direction by the axial moving device 120. In this way, an axial relative motion between the roll 110 and the machining element 130 adjusted with respect to the roll occurs advantageously, so that the desired machining of the surface of the roll can be performed satisfactorily. In this case, preferably, the roll 110 rotates about its own vertical axis L. When the machined element is formed to rotate, the machined element can also selectively or additionally rotate about its own axis with respect to the roll. Based on the separation, the desired machining of the surface of the roll can be performed without the mechanically complex and expensive synchronization between the roll axial moving device 120 and the machining element adjusting device 150.

FIG. 2 is a variation of the configuration of FIG. The roll stand 100 includes a plurality of processing elements 130-1 to 13-N. These machining elements 130-1 to 130-N can be adjusted in the radial direction with respect to the roll 110 via a common holding element 140 and an adjusting device.

FIG. 3 shows a second embodiment for the present invention. It is recognized that the machining element 3 is attached to the holding device 140 via the spring element 132. The holding device is, for example, a holding element that also supports the wiping element 170 at the same time. In the no-load state, the spring element formed as the compression spring is unloaded, in which case the machining element 130 attached to the end opposite to the spring holding device is in the foremost position. In that case, the adjustment of the processing element to the roll is first performed so that the processing element 130 is pressed against the roll when the spring is unloaded, that is, without an adjusting force. The adjusting force is then increased by further feeding the holding device 140 against the roll until the wiping element 170 also attached to the holding device 140 also abuts against the surface of the roll 110. The wiping element 170 is used to remove the liquid from the surface of the roll. For example, this is the liquid sprayed by a spray bar located between the processing element 130 and the wiping element 170 for applying the liquid to the surface of the roll. This liquid can be, for example, a coolant, a cleaning liquid or a lubricating liquid.

4a and 4b show a third embodiment different from the second embodiment according to FIG. 3 because the spring element 132 is formed in the form of a leg spring or a rocker 148. Machining elements 130 are arranged at both ends of the leg spring, and these machining elements are pressed against the surface of the roll 110 based on the spring load of the leg spring. In the opposite radial direction, that is, in the direction away from the roll 110, the stopper element 190 is provided to limit the movement of the machining element 130 in the radial direction away from the roll. The wiping element 170 can also be placed at another end of the holding device 140, even if not shown in FIG. 4a above. The figure below FIG. 4b allows for multiple spring elements or rockers 148 to be distributed over the width of the roll. The provision of the rocker provides the advantage that accurate contact of the machining element 130 with the roll is guaranteed even if the adjustment position or height position of the roll 110 in the roll stand 100 is different.

Finally, FIG. 5 shows a fourth embodiment of the rocker invention showing the options for pivoting the rocker to the rocker forming and holding device 140. Specifically, the rocker 148 in this fourth embodiment is formed as a rigid element with a u-shaped or horseshoe-shaped cross section. At both free ends of the legs of the horseshoe-shaped rocker, each machining element 130 is rotatably supported, preferably via bearings 145. The bearing 145 is preferably formed as a cardan bearing. The rocker 148 itself is rotatably supported at the free end of the rocker arm 143, but the rocker arm 143 itself is rotatably and rotatably attached to the other end opposite the rocker. It is combined. Another spring element or actuator 144 is provided to support the rocker arm with respect to the holding device 140 in order to limit the path of rotational movement of the rocker arm 143 around the holding device 140. Optionally, a wiping element 170 can be provided at another free end of the holding device 140, which in this case preferably simultaneously contacts the surface of the roll 110 with the machining element 130.

100 Roll stand 110 Roll 110-o Upper (work) roll 110-u Lower (work) roll 120 Axial moving device 130 Machining element 130-1. .. .. N Machining element 132 Spring element 140 Holding device 142 Swivel joint 143 Swing arm 144 Spring element / activator 145 Bearing 148 Rocker 150 Adjusting device 160 Rotational drive device 170 Wiping element 180 Spray bar 190 Stopper element 200 Product L Axial direction F Adjusting force R Radial direction

Claims (16)

-With at least one roll (110) rotatably supported for molding the product,
An axial movement device (120) for moving the roll (110) in the axial direction, and
-At least one processing element (130) and
At least one holding device (140) for the machining element (130) and
An adjusting device (150) acting on the holding device (140) for adjusting the machining element (130) with respect to the roll (110) arranged in the roll stand.
In a roll stand (100) for rolling a product, typically in the form of a metal product.
The roll stand (100), characterized in that the holding device (140) and / or the adjusting device (150) is formed to fix the machining element (130) in the axial direction (L). The roll stand (100) according to claim 1, wherein a rotation drive device (160) for rotationally driving the roll (110) is provided. The roll according to claim 1 or 2, wherein a plurality of N processing elements (130-1 ... N) arranged side by side in the axial direction and / or the circumferential direction are provided. Stand (100). The adjusting device (150) preferably performs at least some of the cardan-supported machining elements (130-1 ... N) individually, preferably individually and multidimensionally with respect to the roll (110). The roll stand (100) according to any one of claims 1 to 3, wherein the roll stand (100) is formed for adjustment. The holding device (140) is provided with a pivotally supported rocker in which at least two machining elements extending axially and spaced apart in the circumferential direction of the roll are preferably arranged parallel to each other. The roll stand (100) according to any one of claims 1 to 4, wherein the roll stand (100) is characterized in that. The roll stand (100) according to claim 5, wherein the rocker is elastically supported by the holding device. The roll stand (100) according to any one of claims 1 to 6, wherein at least one processing element is elastically supported by a holding device or a rocker via a spring element (132). ). 4. A rocker (180) is formed in the form of a leg spring, each of which is fixed to the free end of the leg spring, preferably articulated. The roll stand (100) according to any one of 7 to 7. The roll stand (100) according to any one of claims 1 to 8, wherein the roll (110) is a work roll or an intermediate roll of the roll stand. The roll stand (100) according to claim 9, wherein the roll stand is a hot roll stand or a cold roll stand for hot rolling or cold rolling of a metal product. The roll stand (100) according to any one of claims 1 to 10, wherein the product (200) is made of a metal, particularly steel or aluminum. The roll stand (100) according to any one of claims 1 to 11, wherein the product (200) is formed in a strip shape, particularly as a metal strip, or in a plate shape, particularly as a metal sheet. ). In addition to the machining element (130), the wiping element (170) is also arranged in the holding device at a distance from the machining element (130) in the direction of rotation of the roll in order to remove the liquid from the surface of the roll (110). The roll stand (100) according to any one of claims 1 to 12, characterized in that the roll stand (100). 13. The roll stand according to claim 13, wherein at least one spray nozzle, preferably a spray bar, is arranged between the machining element and the wiping element to spray the liquid on the surface of the roll. 100). An upper holding device (140-o) with an upper machining element (130) for adjusting to the upper roll and a lower machining element (130) for adjusting to the lower roll. The roll stand (100) according to any one of claims 1 to 14, wherein a holding device (140-u) underneath is provided. 15. The roll according to claim 15, wherein at least one stopper element (190) is provided to limit the rotational movement of the rocker (148) relative to the holding device (140). Stand (100).

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