Modular stand base for spaced stands of rolling mill

Abstract

To develop a rolling mill from the prior art in such a way that it can be adjusted more flexibly to different requirements with respect to the number and arrangement of the stands received in the rolling mill.SOLUTION: The present application relates to a stand base (10) for two or more stands (14) of a rolling mill arranged one behind the other in a rolling direction (W) of a material to be rolled, the stand base (10) comprising two or more receiving modules (12) arranged one behind the other, which are fastened to a common lower base frame (32) and a common upper cover frame (34).SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a stand base for two or more stands of a rolling mill arranged one behind the other in the rolling direction of the material to be rolled. [Background technology]

[0002] Rolling mills from the above technical fields have been known in principle for many decades. These mills often produce round products which pass through several successive stands in order to gradually adapt the starting product to the desired shape and size of the semi-finished or final product.

[0003] In this case, it has been conventional to design rolling mills with a given number of stands arranged one behind the other. Four stands per rolling mill are typical, and the stands are always designed in pairs in such a way that the rollers of a stand contact the material to be rolled at a point that is not touched by the previous stand. In this case, for three-roller stands, reference is made to a Y-configuration and an anti-Y-configuration, which always alternate with each other.

[0004] The rolling mill can accommodate all the stands together. A rolling mill for rolling rod-shaped or tubular products is known from DE 10 05 05 14 A1, which includes two or more stands arranged one after the other in the rolling direction of the material to be rolled. It includes at least one measuring device, which is arranged in front of, between or behind the stands in the rolling direction, for controlling or regulating the rolling speed in at least one of the stands on this basis.

[0005] A disadvantage of the rolling mills known from the prior art is that they can only accommodate all the stands together in their entirety and therefore cannot be flexibly adapted to different requirements.

[0006] A drawback of the method for determining the forces acting between stands and the forces acting on the rolling mill from outside, for example due to roughing or intermediate mills, is the influence of the common stand remaining on the measurement signal, which causes the measurement signal to be falsified. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] DE 10 2016 217 202 Summary of the Invention [Problem to be solved by the invention]

[0008] Against this background, the object of the present invention is to develop a rolling mill from the prior art in such a way that it can be adapted more flexibly to different requirements regarding the number and arrangement of stands to be accommodated in the rolling mill.

[0009] This object is achieved by a stand base according to claim 1. Advantageous embodiments of the invention emerge from the dependent claims. [Means for solving the problem]

[0010] A stand base for two or more stands of a rolling mill, arranged one behind the other in the rolling direction of the material to be rolled, each stand including more than four sides that together form the periphery of the stand as viewed in the rolling direction, includes two or more receiving modules individually attached to the base, each of which is designed to receive one of the stands through a side opening in such a way as to cover more than four of the sides and half of the periphery of the stand. The stand base includes protective flaps on the sides of the side openings between all adjacent receiving modules arranged one behind the other to protect the intermediate spaces between adjacent receiving modules from rods escaping from the intermediate spaces or from water escaping from the intermediate spaces and from people reaching into the intermediate spaces.

[0011] The stand base is thus designed in a modular manner in that it comprises a number of receiving modules capable of receiving a single stand in each case. In this case, the receiving modules of the stand base should be distinguished from the individual stand bases outside the rolling mill combination. In the context of the present invention, the receiving modules are part of the stand base of the rolling mill.

[0012] These receiving modules allow individual stands to be received in individual receiving modules and therefore the rolling mill to be used in a flexible manner. Furthermore, the rolling mill can be manufactured and designed in a more cost-effective manner due to the modular design made possible by the receiving modules.

[0013] The property that the openings are transverse openings relates to the rolling direction. Viewed along the rolling direction, the receiving modules are thus arranged one behind the other and can in each case receive stands from a direction transverse to said rolling direction. In this case, all stands are received from the same side of the receiving module, for example when they are exchanged for inspection or to replace them with stands having a different calibration size.

[0014] To allow the stand to be introduced laterally into the receiving module, the receiving module at least sometimes includes an opening on a side surface. For replacing the stand, the stand base is also accessible from this side. This also means that the stand is accessible on this side of the stand base.

[0015] The receiving modules are designed to receive stands with more than four sides in each case. The stands preferably each have six sides, and when viewed in the rolling direction, their outer shape forms a regular hexagon. Alternatively, the receiving modules can be designed to receive stands with four sides in each case. To securely receive the stands, the receiving modules have a shape that matches the shape of the stand. This means that the shape of the receiving module is almost the opposite of the outer shape of the part of the stand that is received by the receiving module. The fact that each receiving module is designed to cover four of the preferably six sides of the stand means, in particular, that the receiving module includes a surface that is partially adjacent to or surrounded by some of the sides of the stand, allowing the stand to be securely and firmly attached to the receiving module. For this purpose, additional structural measures, in particular clamping blocks, strips, or anchors, can be used. For a four-sided stand, the receiving module can be designed to cover three of the stand's sides.

[0016] In the case of stand-based modular designs with multiple receiving modules, it is necessary to ensure that intermediate spaces between the receiving modules are reserved. This is because, during rolling mill operation, large amounts of material to be rolled, usually steel, are guided through the mill at high speed and high temperature. Therefore, during rolling, what is known as jamming can occur, where the material to be rolled is not received correctly by the stand and backs up in front of the stand. If the mill is not secured, the material to be rolled can quickly escape from the mill in an uncontrolled manner, which is of course unacceptable, for example, in terms of worker safety. Furthermore, large amounts of cooling water escape into the environment between the stands of the rolling mill, which also needs to be shielded.

[0017] A protective flap or flaps are used for this purpose, which flaps are arranged on the sides of at least two lateral openings of the receiving module and cover the intermediate space.

[0018] In this stand base, the receiving modules are preferably attached to the base by a common lower base frame. The base frame absorbs forces acting on the stands received in the receiving modules in the rolling direction during operation, thus preventing these forces from being directly introduced into the base. As a result, greater stability of the stand base and, therefore, greater accuracy of the relative positions of the stands in the receiving modules relative to one another is ensured. In this case, the base frame preferably extends across the entire extent of the rolling mill in the rolling direction, but can also cover only a smaller length, so that the rolling mill can include several such base frames. However, it is also possible to attach the receiving modules directly to the base without a base frame.

[0019] Preferably, each receiving module includes an operating substance connection oriented toward the side opening so that the stand can be supplied with an operating substance. Exemplary operating substances are water, in particular cooling water for the rollers, optionally for the rolls of the roller guides or for the material to be rolled, and compressed air, in particular for sealing the stand. Each receiving module can also preferably include multiple operating substance connections. If each receiving module includes one or more operating substance connections, stands whose operation requires or is advantageously supplied with an operating substance can be particularly easily inserted into the rolling mill in a modular manner. In this way, for example, it is possible to design uniform connections for the receiving modules, so that all stands can fit into all receiving modules and be connected to the operating substance connections there. The operating substance connections are preferably aligned with the side openings, meaning that they point toward the side openings and are easily accessible from this direction. In this case, the operating substance connections are preferably designed in such a way that a correspondingly designed stand can be pushed into the receiving module and directly connect to one or more of the operating substance connections. This is possible, for example, by a connection socket facing the lateral opening, into which a corresponding connector on the stand can be pushed when the stand is pushed into the receiving module. However, this type of active material connection is not essential.

[0020] Advantageously, each receiving module includes a holder for an electric or hydraulic remote adjustment means of the stand. The stand received in the receiving module may include an adjustable roller. Adjustable rollers, and in particular mechanisms for adjusting rollers, have long been known in principle. It is also known to operate the rollers automatically by means of a remote adjustment means. An alternative adjustment is manual adjustment of the rollers with a hand tool. In the remote adjustment means, an electrically, hydraulically or otherwise driven shaft is provided which applies an adjustment torque via a coupling to a corresponding adjustment mechanism of the stand.

[0021] According to the above-mentioned preferred feature, each receiving module is provided with a holder for the remote adjustment means of the rollers of the stand. In particular, the holder can be, for example, a bearing or a joint of the adjustment shaft, so that the adjustment shaft or joint is held in the correct position for interaction with the stand pressed into the receiving module. For this purpose, the stand can include a joint that can be coupled to the joint of the remote adjustment means of the stand. In this preferred embodiment, the holder for the remote adjustment means of the stand makes it possible to provide or not provide remote adjustment means depending on the design of the stand housing. In this respect, the presence of the holder does not depend on the design of the stand, but allows for a particularly versatile use of the stand base for different stands with and without remote adjustment means. However, the holder can also be omitted.

[0022] Advantageously, each receiving module includes a holder for an electric or hydraulic remote adjustment means of the roller guide mounted on the stand. Similar to the adjustable rollers of the stand, the rolls of the roller guide mounted on the stand can also be adjustable. Adjustable rolls, like adjustable rollers, have long been known in principle. Automatic roll actuation by remote adjustment means is also known. An alternative adjustment of the rolls is manual adjustment of the rolls by hand tools or by means of a roll holder that is preloaded by a spring force, and thus the rolls are not adjusted from the outside. The remote adjustment means of the roller guide is provided with an electrically, hydraulically, or otherwise driven shaft that applies an adjustment torque via a coupling to a corresponding adjustment mechanism of the roller guide.

[0023] According to the preferred feature described above, each receiving module is provided with a holder for the remote adjustment means of the roller guide. Specifically, the holder can be, for example, a bearing or a joint of the adjustment shaft, so that the adjustment shaft or joint is held in the correct position for interaction with the roller guide of the stand pressed into the receiving module. For this purpose, the roller guide can include a joint that can be coupled to the joint of the remote adjustment means. In this preferred embodiment, the holder for the remote adjustment means of the roller guide makes it possible to provide or not provide the remote adjustment means depending on the design of the stand housing. In this respect, the presence of the holder does not depend on the design of the stand and its roller guide, but allows for a particularly versatile use of the stand base. However, this type of holder can also be omitted.

[0024] Preferably, each stand is firmly received in the receiving module in which it is received, by clamping or in another way, so that the forces acting on the stand of the material to be rolled in particular are transferred to the receiving module. The stands are removably received in the receiving module, so that to exchange the stand, the receptacle, in particular the clamping, can be released and the stand can thus be set free. The firm reception secures the stand in its receiving module.

[0025] In this way, the forces acting on a stand can be released and also measured independently from the forces acting on other stands, allowing for improved control or regulation of the rolling process.

[0026] Preferably, each of the receiving modules is attached at its bottom to the base and is tiltable along the rolling direction, with each receiving module resting on its own counter-bearing. Particularly preferably, each of the receiving modules is attached to the base by the base frame in a torque-free manner on the base frame and is tiltable along the rolling direction.

[0027] The receiving module is mounted in a torque-free manner, for example by being hinged. For this purpose, it can be arranged on a joint, but also on an edge or the like that allows it to tilt along the rolling direction. What is important for a torque-free mounting is that by mounting the receiving module on the base or on the base frame, no significant torque opposes the tilting movement of the receiving module, i.e. no significant force is required to tilt the receiving module along the rolling direction.

[0028] The fact that the receiving module is tiltable along the rolling direction means that it can tilt about an axis that extends perpendicular to the rolling direction and preferably horizontally. The axis about which the receiving module can tilt for torque-free mounting is preferably arranged off-center relative to the receiving module. Even more preferably, said axis is offset downstream from the center of the receiving module along the rolling direction. As explained above, if the receiving module is arranged in a torque-free manner at the bottom, the counter-bearing at the top results in a stable arrangement. In the case of an off-center arrangement about the axis about which the receiving module can tilt downwards in a torque-free manner, the tilting moment of the receiving module due to gravity causes the receiving module to rest against the counter-bearing at the top.

[0029] The torque-free mounting of the receiving module makes it possible to tilt the receiving module independently of the other receiving modules in the stand base and to determine the force acting on the stand in the rolling direction via the counter-bearing without changing the position of the receiving module in the process. This allows for more accurate processing of the material to be rolled. However, the receiving module can also be rigidly mounted to the base, in particular the base frame, or displaceable. Alternatively, the receiving module can be mounted in a torque-free manner at the top, tiltable in the rolling direction, and resting against the counter-bearing at the bottom.

[0030] Preferably, a force measuring device is arranged between the receiving module and the counterbearing in such a way that the force acting on the stand received in the receiving module along the rolling direction can be measured. For example, the device described in Patent Document 1 is possible as a force measuring device, particularly a piezoelectric measuring device, because piezoelectric elements have both high measurement sensitivity and high rigidity, even under considerable loads. Other force measuring devices are also possible. The force measuring device can be used to determine the force acting on each individual stand along the rolling direction. Due to the torque-free lower mounting of the receiving module, a force applied to the stand acts along the rolling direction as a torque about the axis of the torque-free mounting and therefore as a force on the counterbearing. Because each receiving module is mounted torque-free independently from the other receiving modules on the stand base, the force acting on each individual stand along the rolling direction can be determined in this way. This force can be used to control or adjust the rolling process to achieve better rolling results. However, the force measuring device can also be omitted.

[0031] Particularly preferably, a limiting element is arranged between the receiving module and the counterbearing to protect the force measuring device against overload. This can be, for example, a stop that limits the spring travel of a spring-based force measuring device and thus prevents excessive deformation of the force measuring device. However, a limiting element of this kind is not essential.

[0032] Advantageously, the counterbearings of the receiving modules are fixed to a common cover frame. Like the common base frame, this cover frame absorbs forces acting on the stands received in the receiving modules in the rolling direction during operation, thus preventing them from being introduced directly into the cover structure. As a result, greater stability of the stand bases and, therefore, greater precision in the relative positioning of the stands in the receiving modules relative to one another is ensured. In this case, the cover frame preferably extends over the entire extent of the rolling mill in the rolling direction, but it can also cover only a smaller length, so that the rolling mill can include several such cover frames. However, it is also possible to fix the counterbearings directly to the cover structure.

[0033] Advantageously, each receiving module comprises a longitudinal drive with a gripper device, so that the stand can be pushed into and out of the receiving module through the lateral opening.

[0034] The longitudinal drive can be, for example, a hydraulic cylinder or an electric drive, which is strong enough to pull the stand into the receiving module and push it out of the receiving module. This movement through the lateral opening makes it possible to exchange the stand for inspection or for other reasons. Alternatively, a correspondingly designed external device can be used to introduce the stand into the receiving module or to remove it from it.

[0035] The gripper device may be a hook, a hole, a slide, or other device. The specific design of the gripper device may be adapted to the stand provided for the receiving module. It is also conceivable that adapters for different gripper devices may be operatively connected to the longitudinal drive so that they can be used with different stands. However, typically, the stand base is designed for a given type and shape of stand, such that an adapter of this kind is not normally required.

[0036] Advantageously, two different receiving modules for receiving stands in two different configurations are arranged alternately behind each other. In the case of a three-roller stand, these different configurations can be a Y-configuration and an anti-Y-configuration. Stands with more or fewer rollers can have corresponding configurations of stands that complete each other to form a round roller. If the material to be rolled is not intended to be rolled into a round shape, the different configurations can also be arranged alternately if this is advantageous for the rolling result. However, this is not necessarily the case.

[0037] The protective flap is preferably designed to be hydraulically or electrically pivotable. However, it can also be manually pivotable or otherwise removable from and attachable to the intermediate space. The hydraulically or electrically pivotable design of the protective flap makes it particularly easy to protect the intermediate space in a controlled, reliable and documented manner.

[0038] Advantageously, the protective flap includes a closable opening to allow short-term access to the intermediate space, which may be, for example, for manual operation of the roller guides. Thus, the protective flap does not have to be completely removed, for example pivoted open, to allow short-term access to the intermediate space, which allows for more efficient operation of the rolling mill. However, this type of opening can also be omitted.

[0039] Preferably, a stand is received in each of the receiving modules.

[0040] Further advantages and developments of the invention will become apparent from the following description of the figures and from all claims. [Brief explanation of the drawings]

[0041] [Figure 1] FIG. 1 is a perspective side view of a preferred stand base. [Figure 2] 1 is a schematic diagram of a preferred mounting of two receiving modules on a stand base. [Figure 3] 1 is a schematic diagram of a preferred receiving module for the stand base. [Figure 4] 1 is a schematic diagram of a preferred protective flap for the stand base. DETAILED DESCRIPTION OF THE INVENTION

[0042] 1 is a perspective side view of a preferred stand base 10. The stand base 10 includes four receiving modules 12 arranged one behind the other along the rolling direction W. Each receiving module 12 functions to receive one stand 14. A narrow intermediate space 16 is disposed between adjacent receiving modules, and this intermediate space is narrower in the rolling direction W than each of the receiving modules 12.

[0043] The receiving modules 12 are shaped in such a way that they can reliably receive the stands 14, four of which are shown in Figure 1. The stands 14 have a base surface that is oriented perpendicular to the rolling direction W and has the shape of a regular hexagon. The stand housing of the stand is crucial for the shape of the stand 14, while the rollers 14.1, the connections 14.2, the receptacles 14.3 etc. do not interfere with the character of the stand 14, which we call hexagonal.

[0044] Due to the hexagonal shape of the stand 14, the receiving module 12 is partially in the shape of an inverted hexagon. The receiving module 12 shown in Figure 1 comprises four side faces 18 shown in Figure 2, which are arranged and dimensioned to securely enclose the above-mentioned hexagonal stand 14 at its first side 68, seen from the top and bottom and in the rolling direction W, and in particular therefore have the same length and are arranged at an internal angle of 120° to each other. At the front and back, seen in the rolling direction W, the receiving module 12 further comprises protective walls 20 to securely enclose the stand 14.

[0045] On the side opposite the first side 68, as viewed in the rolling direction W, i.e. the side facing the viewer of FIG. 1, every receiving module 12 includes a lateral opening 66, through which a stand 14 standing against one of its sides can be pushed into the receiving module 12 along the insertion direction E.

[0046] Below and at the rear along the insertion direction E, i.e. on each first side of the receiving modules 12, there are further arranged on the receiving modules 12 sliding rails 22, on which the stands 14 can be pressed into a defined position in a low-wear manner onto the receiving modules 12. The sliding rails 22 can also serve as a seal against splashing water.

[0047] A protective flap 24 is formed between every adjacent receiving module 12, which flap covers the intermediate space 16 between the adjacent receiving modules 12. The intermediate space 16 is therefore protected from rods escaping from the intermediate space 16 or from escaping water, and from people reaching into the intermediate space 16.

[0048] The protective flaps 24 are designed to be pivotable via hinges 26 arranged in the upper regions between the receiving modules 12. The intermediate spaces 16 can therefore be covered and also opened by the protective flaps 24, if rolling is not currently being performed, for example to carry out work in the intermediate spaces 16 between the receiving modules 12, but also to facilitate the replacement of the stands 14, in particular to push the stands 14 in and out. To allow short-term access to the intermediate spaces 16, the protective flaps 24 comprise closable openings, which in the embodiment shown in FIG. 1 are covered by hand-hole covers 30. Opening the hand-hole covers 30 is significantly faster and less laborious than opening the entire protective flaps 24, especially when all the protective flaps 24 of the stand base 10 are pivoted open and closed by a common drive.

[0049] 2 is a schematic diagram of a preferred mounting of two receiving modules 12 on the stand base 10. The two receiving modules 12 shown in FIG. 2 are fixed to a common lower base frame 32 and a common upper cover frame 34. The receiving modules 12 are attached to the base via the common lower base frame 32. The receiving modules 12 are attached to the base at their bottoms in a torque-free manner via the common lower base frame 32 by means of a joint 36 having a tilt axis K. In other words, the receiving modules 12 are attached at their bottoms in such a way that they can tilt about the joint 36 along the rolling direction W, which corresponds to the main extension direction of the base frame 32 in FIG. 2, so that a force acting on the receiving module 12 along the rolling direction W leads to a torque about the tilt axis K of the joint 36.

[0050] The receiving module 12 rests at its top against a counterbearing 38 at its stop 40. As can be seen in FIG. 2, the joint 36 is positioned off-center at the bottom of the receiving module 12 along the rolling direction W, such that gravity acting on the receiving module 12 induces a tilting moment about the joint 36 to the left in FIG. 2, i.e., against the rolling direction W. This tilting moment reacts against the counterbearing 38 at its top, causing the receiving module 12 to rest firmly against the counterbearing 38 at its stop 40. The additional force on the stand 14 received by the receiving module 12 is superimposed on the force resting the receiving module 12 at its top against the counterbearing 38, thus altering the force acting on the counterbearing 38. Conclusions can be drawn from this regarding the forces acting on the material to be rolled through the stand 14, which are valuable for regulating and controlling the rolling process.

[0051] For the force measurement, a force measuring device 58 is arranged between the counter bearing 38 and the stop 40 of the receiving module 12 which is stationary relative to it, and which can be designed, for example, as a piezoelectric element.

[0052] In Figure 2, one of the two receiving modules 12 shown is provided with a stand 14, while the other of the two receiving modules 12 shown is empty. In addition to the elements already described above with reference to Figure 1, the empty receiving module 12 also shows a holder 42 for an electric or hydraulic remote adjustment means of the roller guides attached to the stand 14. This type of roller guide is optional and can be further adjusted by a remote adjustment means, i.e. by a motor or manually, or it can be designed so that no adjustment is performed but rather a force is continuously applied to the rolls in the direction of the material to be rolled, for example by a spring.

[0053] 2 on the empty receiving module 12, a hook 44 can be seen by means of which the stand 14 can be pulled into or pushed out of the receiving module 12. Said hook 44 is operatively connected to a longitudinal drive 46, via which the force required to push in and out the stand 14 can be provided.

[0054] 2 shows that the empty receiving module 12 includes openings 48 in its side surfaces 18. A plurality of openings 48 of this kind are provided for the drive shafts of the rollers of the stand 14. Through said openings 48, the couplings of the roller shafts can reach out through the receiving module 12 from the side of the stand 14, where they can be coupled to the corresponding drives.

[0055] Furthermore, two first working substance connections, designed as water connections 50, are shown on the receiving module 12. When the stand 14 is pressed into the receiving module 12, one or more corresponding connections on the stand 14 can be coupled to said water connections 50. For this purpose, the stand 14 can be provided with corresponding connectors that penetrate into the water connections 50 of the receiving module and thus establish a watertight connection.

[0056] Also shown is a second working material connection, designed as an air connection 52. Like the water connection 50, the air connection 52 is also arranged and designed in such a way that it can be coupled to a corresponding connection on the stand 14 when the stand 14 is pushed into the receiving module 12.

[0057] Figure 3 is a schematic diagram of a preferred receiving module 12 of the stand base 10. In this figure, a remote adjustment means 54 for the rolls of the roller guides attached to the stand is shown, which is held in the remote adjustment means holder 42. Additionally, Figure 3 also shows an electric or hydraulic remote adjustment means 56 for the rollers of the stand, attached to the receiving module 12, which is diagonally mounted to the receiving module 12 at the top and allows for easy coupling to a corresponding remote adjustment connector on the stand. Figure 3 also shows the hook 44, also shown in Figure 2, and the longitudinal drive 46 operably connected to the hook 44.

[0058] A comparison of the empty receiving module from Figure 2 with the receiving module from Figure 3 shows that the water connection 50, the air connection 52 and the openings 48 for the roller drives are provided in different positions. The receiving module 12 is configured for two different configurations, specifically once for what is known as a Y configuration of rollers and once for what is known as an anti-Y configuration of rollers.

[0059] The modular design of the stand base 10 makes it possible to convert between different configurations in a very flexible manner, in that in each case the appropriate receiving module 12 is easily placed on the stand base 10, all of which can be mounted in the same way, can be supplied with the same operating substance, and allow the same mechanisms for pushing in and out the stand 14 and also for the same force measurements.

[0060] FIG. 4 is a schematic diagram of a preferred protective flap 24 of the stand base 10. FIG. 4 shows the protective flap 24 in the closed position. The protective flap 24 includes the hand-hole cover 30 already described above with reference to FIG. 1 and two windows 60 for viewing into the intermediate space 16 between adjacent receiving modules 12. Furthermore, the protective flap 24 is pivotally mounted at its top on a hinge 26 so that it can be pivoted open and closed. For this purpose, FIG. 4 shows a protective flap drive 62, in which a hydraulic cylinder applies force to open and close the protective flap 24. FIG. 4 also shows a protective plate 64 opposite the lateral opening of the receiving module 12 and the upper and lower edges of the intermediate space 16, which function, inter alia, to expel splashing water in said intermediate space 16 in as controlled a manner as possible and to reduce contamination of the stand base 10. [Explanation of symbols]

[0061] 10 Stand Base 12 Receptor Module 14 Stand 14.1 Roller 14.2 Connections 14.3 Receptacles 16 Intermediate Space 18 Side 20 Protective wall 22 Sliding rail 24 Protective flap 26 Hinge 28 Aperture 30 Hand hole cover 32 base frame 34 Cover Frame 36 joints 38 Counter bearing 40 Stop part 42 Cage 44 Hook 46 Longitudinal Drive 48 Aperture 50 Water Connection 52 Air connection 54 Remote adjustment means for roller guide 56 Remote roller adjustment means 58 Force measuring device 60 Windows 62 Protective Flap Drive 64 Protective Plate 66 Side Opening 68 First Side E Insertion direction K tilt axis W Rolling direction

Claims

1. A stand base (10) for two or more stands (14) of a rolling mill arranged one behind the other in the rolling direction (W) of the material to be rolled, said stands (14) in each case comprising more than four side faces which together form the periphery of said stand (14) as seen in said rolling direction (W), the stand base (10) includes two or more receiving modules (12) individually attached to the base, each of which is designed to receive one of the stands (14) through a lateral opening (66) in such a way as to cover four of the sides and more than half of the perimeter of the stand (14); the stand base (10) includes protective flaps (24) on the sides of the lateral openings (66) between all adjacent receiving modules (12) arranged adjacently in front and behind, for protecting the intermediate spaces (16) between the adjacent receiving modules (12) from rods escaping from the intermediate spaces (16) or from water escaping from the intermediate spaces (16) and from people reaching into the intermediate spaces (16); Stand base (10).

2. 2. The stand base (10) of claim 1, wherein the receiving modules (12) are attached to the base by a common lower base frame (32).

3. 3. A stand base (10) as described in claim 1 or 2, wherein each of the receiving modules (12) includes an active substance connection portion (50, 52) directed toward the lateral opening (66) so as to be able to supply an active substance to the stand (14).

4. 4. A stand base (10) according to any one of claims 1 to 3, wherein each of said receiving modules (12) comprises a holder for an electric or hydraulic remote adjustment means (56) of said stand (14).

5. 5. A stand base (10) according to any one of claims 1 to 4, wherein each of the receiving modules (12) includes a holder (42) for an electric or hydraulic remote adjustment means (54) of a roller guide attached to the stand (14).

6. 6. The stand base (10) according to claim 1, wherein each of the receiving modules (12) is provided with a clamping mechanism for temporarily fixing a stand (14) to the receiving module (12).

7. each of said receiving modules (12) is attached at its bottom to said base, in particular to said base frame (32) in a torque-free manner and is tiltable along said rolling direction (W); 7. A stand base (10) according to any one of claims 1 to 6, wherein each of said receiving modules (12) rests at its top against its own counter-bearing (38).

8. 8. The stand base (10) according to claim 7, wherein a force measuring device (58) is arranged between the receiving module (12) and the counter-bearing (38) in such a way that the force acting on the stand (14) received in the receiving module (12) along the rolling direction (W) can be measured.

9. 9. The stand base (10) according to claim 8, wherein a limiting element is arranged between the receiving module (12) and the counter-bearing (38) to protect the force measuring device (58) against overload.

10. 10. The stand base (10) according to any one of claims 7 to 9, wherein the counter-bearings (38) of the receiving modules (12) are fixed to a common cover frame (34).

11. A stand base (10) according to any one of claims 1 to 10, wherein each receiving module (12) includes a longitudinal drive (46) having a gripper device (44) for pushing the stand (14) into and out of the receiving module (12) through the lateral opening (66).

12. 12. A stand base (10) according to any one of claims 1 to 11, wherein two different receiving modules (12) for receiving the stands (14) in two different arrangements are arranged alternately behind each other.

13. 13. Stand base (10) according to any one of claims 1 to 12, wherein the protective flap (24) is designed to be hydraulically or electrically pivotable.

14. 14. The stand base (10) according to any one of claims 1 to 13, wherein the protective flap (24) comprises a closable opening (28) to allow short-term access to the intermediate space (16).

15. 15. The stand base (10) according to any one of claims 1 to 14, wherein a stand (14) is received in each of the receiving modules (12).

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