EP3689485B1 - Device for attaching a module to a frame of a rolling stand - Google Patents

Description

The invention relates to a device for attaching a module to a stand frame of a roll stand.

According to the state of the art (e.g. from EP 1 753 555 B1 ) It is known to attach rolling fittings in the form of a structural unit to a stand frame of a roll stand. Such a structural unit is also referred to as a "module" in connection with roll stands. Provision can be made here for an entry-side module or an exit-side module to be attached to the entry side and to the exit side of a roll stand. The attachment of modules to the stand frame of a roll stand chosen for this purpose is subject to the disadvantage that it is complex, which is time-consuming, particularly in the case of conversion projects.

Out of DE 2 023 728 A1 a device for attaching a module to a stand frame of a roll stand according to the preamble of claim 1 is known. A sliding frame with wedge elements is used here, with which the position of a guide unit, through which a rolling stock in the form of a bar is passed, can be adjusted solely in the vertical direction, ie in an upward or downward direction.

Accordingly, the object of the invention is to optimize attachment of a module to a stand frame of a roll stand.

The above object is achieved by a device for attaching a module to a stand frame of a roll stand with the features of claim 1. Advantageous developments of the invention are defined in the dependent claims.

A device according to the present invention comprises a stand frame of a roll stand and a module in the form of a structural unit formed from a roll fitting. Optionally, the module can also have a plurality of rolling fittings. The device according to the invention is used to attach the module to the stand frame of a roll stand and to align it laterally, preferably in a horizontal direction towards the center of the strip run. Such a device comprises at least one wedge element which can be arranged between a stop surface of the stand frame and a contact surface of the module. The wedge element can be displaced parallel to a transport direction in which material is moved through the roll stand. The wedge element has a base surface running parallel to the direction of transport and a wedge surface arranged at an angle thereto. The module has a contact surface that is complementary to the wedge surface of the device. The wedge element is arranged in relation to the upright frame or the module in such a way that an orthogonal line directed to the base of the wedge element runs horizontally on the one hand and is arranged transversely to the transport direction on the other hand. With this arrangement of the wedge element it is achieved that by moving the wedge element parallel to the transport direction, a lateral distance of the module from the center of the belt run is variable or can be set to a predetermined value.

At this point it is pointed out separately that, in the context of the present invention, the feature “strip travel” is the direction in which material is actually moved through the roll stand. This material can be endless strips of metal. However, this material can also be metal sheets that only have a limited length.

The invention is based on the essential knowledge that it is possible due to the displaceability of the wedge element parallel to the transport direction Adjust the positioning of the module on the stand frame of a roll stand with regard to a lateral distance from the center of the strip run. In other words, by moving the wedge element parallel to the transport direction, a specific position of the module relative to the strip run and thus to the "real" position of the rolling stock within the plant or rolling stand is achieved, in which the module has a predetermined lateral distance to the center of the strip run occupies or has. After the module has reached a desired position with respect to the belt run, the module is attached or fastened to the stand frame by means of the device according to the invention and the wedge element is clamped between the stand frame and the module.

The use of the present invention is particularly advantageous in the event that the stands of a roll stand or the associated bars of the stand frame of a roll stand do not ideally point vertically upwards, but rather point slightly to the side (outwards or inwards) with their upper end, for example are tilted. In this case, the uprights are not aligned parallel to one another, although it is still possible to attach the module to such an upright frame with the aid of the device according to the invention.

The lateral displacement of the module explained above, which occurs when the wedge element is displaced parallel to the transport direction, is achieved by the design of the wedge element and its spatial position: an orthogonal, which is directed towards a base area of the wedge element, runs approximately horizontally on the one hand and on the other hand also transverse to the transport direction.

With the help of the device according to the invention, it is possible to attach or fasten a module to a stand frame in a suitable manner, even in the event that, for example, the stand on the operating side is tilted outwards and the stand on the drive side is also tilted outwards, but in one is tilted at an angle other than the operating side. Alternatively, attachment of a module to a stand frame is also possible in the event that one stand on the drive or service side faces outwards or inwards and the other stand (ie on the service or drive side) faces the opposite side respectively is tilted. In any case, such a tilting tendency of the stand is compensated for by clamping the wedge elements at the upper and lower edge of the module in different positions between the module and the adjoining stand frame and fastening them there.

As already mentioned above, the base and the wedge surface of the wedge element enclose an angle between them. In view of the fact that the wedge surface of the wedge element comes into contact with the contact surface of the module when the module is mounted on a stand frame of a roll stand when the wedge element is accommodated between the stand frame and the module, it is advantageous for the present invention if the contact surface of the module is complementary to the wedge surface of the device. For the purposes of the present invention, this means that the contact surface is formed or oriented in the same way at an angle, namely at an angle in relation to the transport direction, which is identical to the angle between the base surface and the wedge surface of the wedge element.

In an advantageous further development of the invention, the wedge element can be provided with at least one through bore which runs parallel to the orthogonal line which is directed towards the base area of the wedge element. Two such through bores are expediently also formed in the wedge element. In this regard, it goes without saying that a screw or screw connection can be accommodated in such a through hole, by means of which the module is fastened to the stand frame of a roll stand.

At this point it is pointed out separately that the mentioned displacement of the wedge element parallel to the transport direction only takes place if the module is newly attached or mounted on the stand frame of a roll stand, or if a position of the module on the stand frame - with loosened Screw connection - to be changed in order to achieve a different distance between the module and the middle of the belt run. This means that the wedge element is firmly attached to the upright frame or is recorded or clamped in a stationary manner between the upright frame and the module when the module is on the Stand frame is attached, for example by means of screws. This in turn also means that the wedge element can be displaced parallel to the transport direction in the manner mentioned when the fastening of the module to the stand frame of a roll stand (for example in the form of a screw connection) is released.

In an advantageous development of the invention, it can be provided for the wedge element that an end plate which has a lateral projection is arranged adjacent to the base area or wedge area. Such a front plate and its lateral projection facilitate the displacement of the wedge element parallel to the direction of transport. For example, suitable assembly means (e.g. mobile hydraulic cylinders or the like) can act on or be attached to the lateral projection of the front plate in order to achieve a displacement of the front plate parallel to the transport direction if this is used to set a lateral position or a lateral distance of the module horizontally to the center of the roll stand is desired or required.

In an advantageous development of the invention, a key can also be provided for the device, which is arranged on an underside of the module. Such a feather key serves the purpose of supporting the module in particular on a base or a surface located below the module. A vertical positioning of the module relative to the stand frame of a roll stand, to which the module is fastened, is thus also determined or influenced by a suitable dimensioning of the parallel key in the vertical direction or its height.

The assembly of the module on a stand frame of a roll stand can be facilitated if a stop plate is provided for the device with which the module can be attached to the inlet side or outlet side of a stand frame of a roll stand. For example, such a stop plate can be provided or arranged on an end face of the module.

The module which is part of the device according to the invention is preferably an inlet side module and/or an outlet side module. In accordance with its name, this is an inlet side module on the Fixed inlet side of a stand frame of a roll stand. Mutatis mutandis, a run-out module is attached to the run-out side of a stand frame of a roll stand.

With the help of the present invention it is achieved that a module can be attached or fastened to a stand frame of a roll stand with little effort and a short or shortened assembly time. By moving the wedge element parallel to the transport direction, a lateral distance to the center of the strip run can be changed or adjusted for the module in order to compensate for any misalignment of the roll stand and the associated stand.

The present invention is particularly suitable for use in single-stand plants or in multi-stand plants (for example tandem mills).

Fig. 1

eine Seitenansicht eines Walzgerüsts und dessen Ständerrahmen, an dem mithilfe einer erfindungsgemäßen Einrichtung ein Modul befestigt ist,

Fig. 2

eine Vorderansicht des Moduls von Fig. 1,

Fig. 3

eine Draufsicht auf das Modul von Fig. 2,

Fig. 4

eine perspektivische Rückansicht des Moduls von Fig. 1,

Fig. 5, 6

jeweils eine prinzipielle Darstellung von Funktionselementen der erfindungsgemäßen Einrichtung in einer Schnittansicht,

Fig. 6a

einen Teilbereich eines Keilelements, das Teil einer erfindungsgemäßen Einrichtung ist,

Fig. 7, 8

jeweils weitere Perspektivansichten eines Moduls von Fig. 1,

Fig. 9a-d

weitere Ansichten für ein Modul von Fig. 1, nämlich in einer Vorderansicht (Fig. 9a), in einer Seitenansicht (Fig. 9b), in einer perspektivischen Rückansicht (Fig. 9c, analog zu Fig. 4) und in einer Draufsicht (Fig. 9d).

An exemplary embodiment of the invention is described in detail below with reference to a schematically simplified drawing. Show it:

1

a side view of a roll stand and its stand frame, to which a module is attached using a device according to the invention,

2

a front view of the module of 1 ,

3

a plan view of the module from 2 ,

4

a rear perspective view of the module of FIG 1 ,

Figures 5, 6

each a basic representation of functional elements of the device according to the invention in a sectional view,

Figure 6a

a portion of a wedge element that is part of a device according to the invention,

Figures 7, 8

further perspective views of a module from 1 ,

Fig. 9a-d

more views for a module of 1 , namely in a front view ( Figure 9a ), in a side view ( Figure 9b ), in a perspective rear view ( 9c , analogous to 4 ) and in a plan view ( Figure 9d ).

Below is with reference to the Figures 1-9 a preferred embodiment of the invention is explained, in which a module can be attached to a stand frame 1 of a roll stand W by means of an associated device 10 . The same features in the drawings are each provided with the same reference symbols. At this point it is pointed out separately that the drawings are merely simplified and in particular are not shown to scale.

1 shows a simplified side view of a roll stand W and an associated stand frame 1, to which a module 12 is attached by means of the device 10 according to the invention, which is explained separately below.

In the 1 a transport direction along which a material, preferably a metal strip or sheet, is moved through the roll stand W is denoted by "T". This also applies in the same way to 5 and 6 .

the Figures 2 and 3 show the module 12 of 1 in an end view or in a plan view.

At this point it is pointed out separately that the module 12 in the sense of the present invention is a structural unit with which a plurality of rolling fittings are combined. These rolling fittings can include, in particular: Spray bars, spray protection walls, cleaning bars, cooling bars, strip deflectors for the upper and lower work roll of the rolling stand, strip data measuring device, strip tension measuring roller, a protective device for a strip thickness measuring device, a stationary strip guide table and/or a strip Hold-down roller with integrated belt cooling device.

4 shows a perspective rear view of the module 12. The module 12 shown here may be an upstream module that is attached or fixed accordingly to an entry side of a stand frame of a roll stand.

To attach the module 12 to the stand frame 1 of the roll stand W, the device 10 comprises a plurality of wedge elements, which are shown in FIG 4 are respectively denoted by reference numerals "14". Two wedge elements 14 are provided on each side of the module 12, namely at an upper and lower edge thereof.

Attached to the end faces of the two vertical legs or bars of the module 12 are stop plates 27, with which the module 12 can be fastened to the inlet side of a stand frame. In this regard, it is pointed out separately that in the presentation of 4 the holes for attachment are not shown for simplicity.

To further clarify the functioning of the fastening device 10 according to the invention, FIG figure 5 a section through an associated wedge element 14, which is attached to an upper edge of the module 12. In the figure 5 a center of the roll stand W is indicated by the dot-and-dash line "20". To the figure 5 the following explanations in detail:
The wedge element 14 is accommodated between the upright frame 1 and the module 12 attached thereto. As in the Figure 6a illustrated, the wedge element 14 comprises a base surface 18 and a wedge surface 19 running at an angle α thereto.

The arrangement of the wedge element 14 in relation to the stand frame 1 or the module 12 is understood in such a way that an orthogonal O, which is directed towards the base 18 of the wedge element, runs horizontally on the one hand and is arranged transversely to the transport direction T on the other hand. Such an orthogonal O is in the representation of 6 shown showing a cut through one at the bottom Edge of the module 12 arranged wedge element 14 shows. The functioning of the wedge element 14 of 6 corresponds identically to that of the wedge element 14 of FIG figure 5 .

The module 12 is fastened to the stand frame 1 or to an inner side of an associated stand beam, for example by means of screw connections. Such an inside of a stand beam 1 is in 5 and 6 are each attracted to "2" and serves as a stop surface with which the base 18 of the wedge member 14 comes into contact when it is received or clamped between the stand frame 1 and the module 12 attached thereto.

Said screw can be provided at two different points above or below the wedge member 14 and is in the figure 5 symbolized in simplified form by dash-dotted lines "22". As an alternative to this, it is also possible for through-holes to be formed in the wedge element 14 at the points of the screw connection. In this case, the screw connections or the associated screws are passed through the through-holes for fastening the module 12 to the stand beam 1.

Adjacent to the wedge element 14, the module 12 has a contact surface 16 which is designed to complement the inclination or orientation of the wedge surface 19 thereto. If the wedge element 14 is located between the stand frame 1 and the module 12 as explained, the wedge surface 19 of the wedge element 14 lies on the contact surface 16 of the module 12 . The opposite base surface 18 of the wedge element 14 bears laterally against the inside 2 or stop surface 2 of the stand frame 1 or of its stand beam. Furthermore, in the figure 5 to recognize that the stop plate 27 attached to the module 12 (cf. 4 ) rests against an end face of the stand beam 1.

An end plate 24 which has a lateral projection 25 is attached to an end face of the wedge element 14 .

The invention now works as follows:
In the course of the attachment or assembly of the module 12 to the stand frame 1, at least before the screw connections 22 are tightened, the wedge element 14 can be displaced parallel to the transport direction T. This is in the figure 5 symbolized by the double arrow "P1". A suitable actuator, for example in the form of a mobile hydraulic cylinder or the like, can be brought into operative engagement with the lateral projection 25 of the end plate 24 for the purpose of such a displacement of the wedge element 14 .

• Beispiel 1:
  Falls in der Darstellung von Fig. 5 das Keilelement 14 in der Transportrichtung T bewegt bzw. verschoben wird, so "wandert" das Modul 12 nach rechts, d.h. in Richtung der Mitte 20 des Walzgerüsts W, wodurch dann der Abstand A abnimmt.
• Beispiel 2:
  Falls in der Darstellung von Fig. 5 das Keilelement 14 entgegengesetzt zur Transportrichtung T bewegt bzw. verschoben wird, so "wandert" das Modul 12 nach links, d.h. weg von der Mitte 20 des Walzgerüsts W, wodurch dann der Abstand A zunimmt.

Thanks to the explained wedge surface 19 of the wedge element 14, which bears against the contact surface 16 of the module 12, shifting the wedge element 14 causes the module 12 to move laterally, which is illustrated in FIG figure 5 is symbolized by the double arrow "P2". In this way, a lateral distance A of the module 12 from the center 20 of the roll stand W or the strip run can be changed. The following examples:

• Example 1:
  If in the representation of figure 5 If the wedge element 14 is moved or shifted in the transport direction T, then the module 12 "wanders" to the right, ie in the direction of the center 20 of the roll stand W, as a result of which the distance A then decreases.
• Example 2:
  If in the representation of figure 5 if the wedge element 14 is moved or shifted in the opposite direction to the transport direction T, the module 12 "wanders" to the left, ie away from the center 20 of the roll stand W, as a result of which the distance A then increases.

The above explanations and examples for aligning a wedge element 14 between the upright frame 1 and the module 12 are understood to apply to all of the four wedge elements 14 shown in FIG 4 are shown.

After a respective wedge element 14 has been aligned in the desired manner between the stand frame 1 and the module 12 in order to achieve or set a desired distance A of the module 12 from the center 20 of the roll stand W or the strip run, the screw connections 20 are inserted or tightened. As a result, a respective wedge element 14 is then firmly clamped between the stand frame 1 and the module 12 . According to the representation of figure 5 is the base 18 of a wedge element 14 on the inside 2 of the upright frame or of its upright beam.

With regard to or in preparation for realigning the module 12 in relation to the stand frame 1 and/or for a possible replacement of a module 12 with another module, it is understood that the screw connections 22 mentioned must first be loosened, and then the wedge elements 14 are either repositioned or removed from the module 12 (in the case of replacement with a new module). Then the wedge elements 14 can be displaced in the direction of arrow P1 in order to align the module 12 in the direction of arrow P2.

To set a vertical height, in which the module 12 is fixed relative to the stand frame 1, the device 10 comprises at least one feather key 26. In the representation of FIG 4 two such keys 26 are shown, which are each arranged on an underside of the module 12 on both sides or spars thereof. The feather keys 26 are supported on a base or a surface underneath. In this case, the suitable selection of a dimension of the feather keys 26 in the vertical direction or whose height influences the vertical position or height in which the module 12 is attached to the stand frame 1 .

To further illustrate the module 12 is this in the Figures 7 - 9 shown in other views. As already explained, this is an inlet side module. Analogous to the representation of 4 are in the rear perspective view of 7 the four wedge elements that are used in the attachment of the module 12 to the stand frame 1 are each tightened with "14".

Reference sign

1

stand frame (of a roll stand);

2

abutment surface (of the stand frame 1);

10

Furnishings;

12

module (inlet module or outlet module);

14

wedge element;

16

contact area (of module 12);

18

footprint (of wedge member 14);

19

wedge surface (of wedge member 14);

20

middle (of the roll stand W);

22

screw connection;

24

face plate (of wedge member 14);

25

Head Start;

26

Adjusting spring;

27

stop plate;

A

Distance;

a

angle (between base 18 and wedge surface 19 of wedge element 14);

O

orthogonal (directed toward base 18 of wedge member 14);

P1

Direction in which the wedge member 14 is slidable;

p2

direction in which the module 12 is movable (due to a shifting of the wedge element 14 in the direction P1);

T

transport direction (for material inside the roll stand W);

W

mill stand.

Claims (7)

1. Device (10) for mounting a module (12) on a housing frame (1) of a roll stand (W), comprising

   a housing frame (1) of a roll stand (W),

   a module (12) in the form of a subassembly with at least one roll fitting and at least one wedge element (14), which can be arranged between an abutment surface of the housing frame (1) and a contact surface (16) of the module (12), wherein the wedge element (14) is displaceable parallel to a transport direction (T) in which the material is moved through the roll stand (W), wherein the wedge element (14) has a base surface (18) extending parallel to the transport direction (T) and a wedge surface (19) arranged at an angle (α) thereto, wherein the module (12) has a contact surface (16) formed to be complementary with the wedge surface (19) of the device (10),

   characterised in that

   the wedge element (14) is arranged with respect to the housing frame (1) or the module (12) in such a way that an orthogonal (O) to the base surface (18) of the wedge element (14) on the one hand extends horizontally and on the other hand is arranged transversely to the transport direction (T) in such a way that a lateral spacing (A) of the module (12) from the centre (20) of the strip course is variable through displacement of the wedge element (14) parallel to the transport direction (T).
2. Device (10) according to claim 1, characterised in that the wedge element (14) has at least one passage bore (22), preferably two such passage bores (22), extending parallel to the orthogonal (O).
3. Device (10) according to claim 1 to 2, characterised in that the wedge element (14) comprises an end plate (24) which is adjacent to the base surface (18) or wedge surface (19) and has a lateral projection (25).
4. Device (10) according to any one of the preceding claims, characterised by at least one abutment plate (27) by which the module (12) is securable to the inlet side or outlet side of a housing frame (1) of a roll stand (W), preferably in that the abutment plate (27) is provided at an end side of the module (12).
5. Device (10) according to any one of the preceding claims, characterised by at least one key (26), which is arranged at a lower side of the module (12), for the purpose of supporting the module (12).
6. Device (10) according to any one of the preceding claims, characterised in that the module (12) is an inlet-side module (12) which is secured at an inlet side of a housing frame (1) of a roll stand (W).
7. Device (10) according to any one of claims 1 to 5, characterised in that the module (12) is an outlet-side module which is secured at an outlet side of a housing frame (1) of a roll stand (W).

Images