EP3049198A1 - Device and method for guiding metal strips having wear bodies - Google Patents

Abstract

The invention relates to a device for the lateral guidance (1) of a metal strip (2) moving on a metal belt conveying device, comprising at least one basic body module (7) having an essentially vertical guiding plane (10), characterized in that at least one wear body (12) having a wear surface (12a), which can be rotated into several defined rotational positions in a controlled manner, is provided, and that the wear surface (12a) is substantially planar, and in all defined rotational positions is parallel to the guiding plane (10). The invention further relates to a method for the lateral guidance of metal strips (2) moving on a metal belt conveying device, characterized in that after a first metal strip has passed through the metal belt conveying device, and prior to a second metal strip entering the metal belt conveying device, the wear body (12) is rotated from a first defined rotational position to a second defined rotational position in a controlled manner, wherein in all defined rotational positions, the wear surface (12a) is parallel to the guiding plane (10).

Description

 description

DEVICE AND METHOD FOR GUIDING METAL BELTS WITH BRAIDING BODIES Field of Technology

The present invention relates to a device for laterally guiding a metal belt running over a metal belt conveyor comprising at least one main body module with a substantially vertical guide plane.

State of the art

In the production of metal strips, these are conveyed by means of metal belt conveyors, for example roller conveyors, to processing machines, for example reeling devices, where they are wound up. It is necessary to subject the metal bands of a lateral guide. Especially before the beginning of winding, this is necessary in order to keep the offset of the individual windings on the wound coil as low as possible in order to achieve a uniform side surface. For example, lateral guidance devices become

 Guide rulers or inlet rulers called. The edges of the running metal strip, on which the devices for lateral guidance act, causing a great wear on the - on the guide rulers or inlet rulers attached - wear strips or their wear surfaces. The band edges, which are guided with high lateral forces, intersect especially with thinner bands

Sparks fly over the entire length of the band - which can be over 2000 m long - in this Schleißleisten. The wear surfaces of the wear strips must depend on the

Production program therefore be renewed several times a week. It is known to replace the effort not always replace the entire Schleißleisten the guide rulers, but for example by

Shifting the wear strips to expose the cutting tape new guide surfaces; This is described for example in DE1427923. The disadvantage here is that ultimately always the costly and expensive to produce Führungslineale

need to be replaced. In addition, there is a risk that when changing the Distance the gap between the roller table rollers and the guide ruler assumes dimensions that a misalignment such as threading or damming the

Metal band can cause it. In a modification of this strategy, it is proposed in DE69408332T2 to provide outstanding areas for the purpose of exposing new areas to the inner boundary surfaces of the guide rails facing the metal strip

Wear can be moved. The disadvantage here is that when threading the beginning of a metal strip there is a risk that - especially with thin tapes - the edges of the tape head can spit on the protruding areas and the metal strip is damaged.

 In order to avoid threading thin metal bands between the roller table rollers, usually the center distances of the roller table rollers are kept as low as possible, which is why the outstanding areas very narrow and thus the

Guide lengths of the individual outstanding areas are very short. Intermediate tables, which would increase the roller table distance and the guide length, are usually avoided in order to avoid threading the tape head and not to damage finished rolled strip underside. In US2818954 it is proposed to provide for guiding a plurality of arranged at an angle to the conveying direction guide discs. By twisting these guide discs new areas can be exposed to wear.

A known measure for avoiding incised grooves provides for perpendicular to the running direction of the metal strip standing axes rotatable rollers from the inner, the metal strip facing boundary surfaces of the guide rulers protrude. The rolling on such guide rollers reduces their

Wear and leaves no continuous grooves. However, with the use of such rollers for lateral guidance with thinning metal bands, the danger that their edges are damaged by the guide rollers increases; Therefore, the use of such guide rulers is possible only for limited metal strip thicknesses. In addition, here edges of the tape head spit on the outstanding leadership roles. JP05161917 proposes to use "umbrella-like-rolls" to guide in a "side-guide" to avoid damage to the metal strip, which are kept in a constant rotational movement by a liquid flow.

Summary of the Invention Technical Problem

 It is the object of the present invention to provide an apparatus and a method for operating the device, which reduces the effort for replacement

worn parts and is suitable for all metal strip thicknesses, without having the disadvantages mentioned.

Technical solution

This task is solved by a

 Device for lateral guidance of a running on a metal belt conveyor metal strip comprising

at least one main body module having a substantially vertical guide plane, characterized in that

at least one wear body with a wear surface, which is rotatable in a plurality of defined rotary positions, is present,

and

the wear surface is essentially flat and parallel to the guide plane in all defined rotational positions.

The metal belt conveyor device is, for example, a roller table, for example a roller table of a belt coiler. The conveying plane of the metal belt conveying device is generally aligned substantially horizontally.

The metal strip is for example a steel strip or an aluminum strip.

The main body module with management level, for example, a so-called

Guide ruler or infeed ruler, which is suitable for guiding the metal strip Surface, the management level has. It may be formed, for example, by one or more wear plates mounted on a support body; Support body and wear plate (s) together then form the main body module.

The lateral guidance device may comprise a base body module or a plurality of base body modules. For example, two Grundkorpermodule, for guiding on one side of the metal strip one each.

 The guide level is used for lateral guidance of the metal strip by means of contact with the sides of the metal strip. It limits the freedom of movement of the metal strip in their direction, whereby the metal strip is guided laterally.

The management level is essentially vertical.

In addition to the main body module, the device for lateral guidance also additionally comprises at least one wear body with a wear surface.

 The wear body is a body that is subject to wear due to the guidance of the metal strip, at a region called the wear surface.

 The wear body is a different component than the main body module, but can be inserted into the main body module or attached to it.

The wear body has at least one wear surface; this is turned towards the metal strip when the metal strip is guided and wears due to contact with the metal strip in the course of the lateral guidance of the metal strip.

 The metal strip cuts into the wear body - for example, a steel hot strip, which must be performed at a temperature of about 600 ° C and a speed of about 60 km / h - which is basically a desired effect, because the incised contours strengthen the guiding effect for the metal band. According to a variant, the material of the wear body, or at least its

 Schleißfläche be selected in terms of its hardness so that on the one hand the

Cutting the guide enhancing contours promoted, and on the other hand, the replacement intervals are kept to an acceptable level.

According to one embodiment, at least one wear body has at least one

Carrier material with a coating on.

For example, a carrier material may be surface-coated - for example ceramic, powder-coated, welded on; For example, with a material that is more resistant to wear than the substrate. It can also be on a carrier material a plate of a, possibly different from the carrier material, be applied, for example by screwing.

 A coating, for example surface coating, of the carrier material may also consist of several layers of different materials. For example, an outer layer may be relatively soft to facilitate cutting the metal strip to form guide grooves, and a layer lying between this outer layer and the substrate may be relatively hard, which makes deeper cutting difficult.

 Coating, for example surface coating, can be the same everywhere on the wear body or segmentally different, depending on the desired use. According to one embodiment, the wear bodies are so symmetrical that they can be easily turned over after one side wear and thus another equally pronounced side facing the metal band and worn. The wear surface is essentially flat in the unworn state. It is also included that the wear body in the wear surface from the outset - so before startup, in unworn new condition - may have guide contours for guiding the metal strip, which are still deepened by the cutting of the metal strip during operation. However, it is preferably in

unworn state plan executed without such guide contours.

 The wear surface is the area of the wear body that is provided in operation for the guidance of the metal strip. Of course, the so-called wear body can also have areas that will not come into contact with the metal strip during operation, for example due to their removal from the pass-line of the roller table or the plane defined by the upper edge of the roller table rollers.

The wear body may be round or have other contours. He may also be trained as a wheel with spokes, and accordingly the rim of the wheel

Contain wear surface or form, and the spokes fix the rim on a rotation axis.

The wear body may also be chamfered laterally to avoid the risk of spitting of the metal strip on the edge of the wear body; if the wear body is a disk so for example between side surface and base of the disc. The wear body can, preferably outside of the wear surface, have guide elevations. In practice it has been found that metal straps may tend to run up the wear bodies, ie increase their distance from the lowermost end of the wear body. To avoid such an unwanted run-up, you can

Guide elevations be provided on Schleißkörper that prevent run-up and leave the provided on Schleißkörper wear surface and

if necessary, turn the metal band downwards again.

 Such guide elevations may be, for example, a plurality of discrete elevations from a surface of the wear body which is in a plane with the wear surface; So separate individual surveys from a plane. Or the Schleißkörper is designed such that at one edge of the wear surface next to the Schleißfläche a survey against the plane of the wear surface is present, this survey is either present on this entire edge, or has interruptions, so only partially present on the edge. The survey is preferably carried out such that it does not rise abruptly from the plane of the wear surface to a fixed height, but their height increases with increasing distance from the edge of the wear surface, called run-on slope.

 A guide survey, especially such a run-on slope, narrows the lateral space for the metal strip during operation. The constriction sets the run - up of the

Metal band resisting.

The wear body is controlled rotatable in several defined rotational positions. He can therefore take at least two defined rotational positions, between which the operator can select specifically and control the rotation controlled accordingly and / or can regulate.

Preferably, several wear bodies are present. This can guide in

increasingly done by the wear body.

 Preferably, all wear bodies are designed according to the invention. This provides maximum benefit from the device associated with the invention

Advantages. Advantageous Effects of the Invention

Compared to US2818954 with its arranged at an angle to the conveying direction guide discs can be realized with the device according to the invention by the substantially planar and parallel to the guide plane wear surface a greater guide length for the metal strip. As a result, a lower surface pressure is caused in comparison, which on the one hand means less risk of damaging an edge of the metal strip and therefore thinner tapes can be treated. On the other hand, this results in less wear on the

Abrasive bodies, resulting in increased life or less

Replacement needs; in practice, for example, results in a six-fold increased replacement interval.

 Compared to JP05161917 with rotating rollers performs the invention

Assuming defined rotational positions to an improved guiding function by cutting the metal strip into the wear body and improved distribution of the wear on different regions. This can, for example

comparatively thinner metal strips are treated.

Preferably, the wear bodies are interchangeable, so that when excessive wear of these components can be easily replaced. In contrast, a more elaborate

 Replacement of the basic body modules - or parts of the base modules such as wear plates - is less often necessary. This saves effort and costs in the maintenance of the device for lateral guidance. According to one embodiment, a plurality of rotatable Schleißkörper in a plurality of defined rotational positions with Schleißfläche available, and at least one of these Schleißkörper is independent of other wear bodies rotatable. As a result, when exposing new areas, consideration can be given to the extent of wear on individual wear bodies and individually rotated as needed. That can do that

Reduce the renewal effort for worn-out wear bodies.

According to one embodiment, a plurality of rotatable Schleißkörper in a plurality of defined rotational positions with Schleißfläche available, and at least one of these Schleißkörper is rotatable depending on at least one other of these Schleißkörper. As a result, when exposing new areas to the extent of wear of groups of At least two abrasive bodies are taken into account, and such groups are rotated as needed. This can further reduce the renewal effort for worn wear bodies. A wear body is rotatable about an axis of rotation. If the wear of a portion of the wear surface of the wear body exceeds an acceptable level, the wear body may be controllably rotated about the axis of rotation, thereby facing and wiping a still unused portion of the edge of the metal belt. By repeated controlled rotation, the need to replace the wear surface or the wear body can be delayed, as always new, not worn areas of the edge of the metal strip are facing.

With regard to its circumference seen in the direction of the rotation axis, the wear body is preferably substantially rotationally symmetrical, particularly preferably rotationally symmetrical. It is hereby included that the wear body has recesses at its edge, which interrupt such a circumference in parts.

 This has the advantage in rotationally symmetrical wear bodies that when rotated by 360 / n degrees - where n is the count of rotational symmetry - the extent of lateral guidance by the wear bodies - in the sense of contact between metal band and wear surface - is substantially unaffected by whether and how often the wear body has been rotated by 360 / n degrees from a starting position - the length over which it is guided - the guide length - remains the same.

 With rotationally symmetrical wear bodies this applies accordingly, even independently of the angle of rotation.

Most preferably, the wear body is a round disc, whose base surface forms the wear surface of the wear body, and which is rotatable about an axis of rotation perpendicular to its wear surface, wherein the axis of rotation is in the center of the circular disc. The wear body is rotationally symmetrical with respect to the axis of rotation in this case. In this way, the metal strip is independent of which

Turning position is the wear body is - that is, regardless of how many degrees it was rotated from a starting position of the

Wear surface always guided over an equal length. The extent of lateral guidance by the wear body in the sense of contact between metal band and wear surface Thus, it remains essentially unaffected by how much the wear body has been twisted starting from a starting position. Of course, the length over which the metal strip is guided by the wear surface, may vary slightly due to other factors - for example, it may vary slightly depending on whether the metal strip in existing cuts in the wear surface and thereby forced a slight change in the direction ,

 The wear body may also have other shapes than a round disk, for example a polygonal disk - for example a hexagonal disk. According to a preferred embodiment, at least one wear body can be arranged in a recess of the at least one main body module. If the at least one wear body in a recess of the at least one

Basic body modules is arranged, it is possible to make a simultaneous guidance of the metal strip through the main body module and the wear body - for example, if the wear surface of the wear body does not protrude beyond the management level of the main body module, but at least partially lies in it. If the wear surface as claimed in the invention is substantially planar and parallel to the guide plane, this may be the case, because parallel to the guide plane also comprises in a plane with the guide plane. Or if the wear surface of the

Wear body does not protrude beyond the management level of the main body module and is not in it, but is further away from the metal strip than the management level of the main body module - and that if the metal strip so far in the

The body module cuts in that it also comes into contact with the wear surface and is thereby guided.

Preferably, the recess is round. This allows easy rotation of a arranged in this recess wear body when it is rotationally symmetrical or rotationally symmetrical with respect to its axis of rotation.

 If the recess is not completely enclosed by the base body module, in this embodiment the edge of the recess in the base body module follows a part of a circle.

 The recess may also have other shapes.

Preferred dimensions of the wear body - and optionally the recess - arranged so that the submerged below the roller door top is as large as possible. The metal strip runs substantially along the roller conveyor upper edge; the larger the part of the wear body - especially a rotationally symmetrical wear body, and more particularly a round disc as wear body, which dips under the upper roller track, the greater is the length offered by the Schleißkörper the metal band for guidance, which causes better guidance.

 In the case of a round Schleißkörpers and a roller table with roller blocks as

Metal belt conveyor, it is therefore preferred that the axis of rotation for the rotatable Schleißkörper lies above the middle between the axes of rotation of the roller conveyor rollers. Then, the realization of a maximum guide length is possible for the subject Schleißkörper in the relevant roller table, because in such a case, the Schleißkörper can dive deeper into the space between the roller table rollers as if the axis of rotation would be laterally offset with respect to the middle between the roller table rollers. Particularly preferred is an embodiment in which in a round recess of the wear body as a round disc whose base surface, the wear surface of the

Abrasive body forms, and which is rotatable about an axis of rotation perpendicular to its wear surface, wherein the axis of rotation is in the center of the circular disc is executed, wherein preferably the Schleißkörper fit - of course with a small gap to allow rotational movement - is arranged in the recess , Then there is little danger that edges of the tape head spit on gaps between wear body and management level, and the rotation of the wear body can be accomplished without the need for additional movements of the wear body. In a trained as a polygonal disk Schleißkörper in a precisely fitting recess, for example, a rotation of the wear body would only be possible after the wear body is moved out of the management level, after twisting it would have to be moved back into the management level. This takes time and requires suitable drive units. It is advantageous in a polygonal disk in a precisely fitting recess that virtually a safeguard against a

unintentional rotation of the wear body is - ie defined rotational positions are defined by the shape of the recess.

If the recess is to allow twisting without such moving out / in, a sufficiently large gap must exist between the edge of the recess and the polygon disc. This has the disadvantage that corners of a tape head can spit on such columns. According to one embodiment, the device according to the invention comprises at least one wear body, for which the distance of its wear surface from the guide plane of the base body module is adjustable. Thus, the wear body or the

Main body module with respect to distance to a metal band to be set in different positions. For example, if the wear body the

Metal strip touches the distance of its wear surface from the management plane of the

Base module, for example, be changed by the

Main body module is moved away from the metal strip. In another variant, the wear body is moved in the direction of metal strip, that increases the distance of their wear surface of the management level of the main body module, for example, until the wear body has contact with the metal strip; This reduces a lateral freedom of movement for the metal strip more and more.

In a so-called guiding position, at least part of the wear body lies outside the guide plane of the base body module, specifically in the direction of the leading edge of the metal strap. It is thus closer to the leading metal band than the main body module; then the lateral guidance of the metal strip is carried out primarily by this part of the wear body or its wear surface, and not by the management level of the main body module. In this way, the expensive and expensive to be manufactured base module is much less worn, it is apart from the inlet of the tape head almost no wear.

The Schleißkörper, for example, in the leadership position - in which they take over the sole tape guide - are set as soon as the tape head of the metal strip has passed the device for lateral guidance, because then there is no longer the danger that its corners spit. The wear of the expensive

The main body module is then significantly reduced, but instead wears out

According to the invention, the low-producible wear body.

At the inlet of the tape head would be in the case of wear bodies in leadership position the risk that the corners of the tape head spit on these wear bodies. For such a phase, the Schleißkörper can be adjusted so - for example by

Retraction in recesses of the main body module - that they are not from the Project management level and therefore there is no danger that a tape head can spit its corners on elevations from the management level.

In a so-called basic body position, the wear body can optionally take over the lateral guidance of the metal band together with the guide plane of the main body module. The metal band will in this case both the

 Wear management level of the main body module as well as the wear surface of the wear body.

The wear body can be adjusted, for example, by being pushed out of the guide plane by a movement perpendicular to the guide plane - by means of corresponding adjustment devices. When displaced vertically, in the guiding position, the entire wear surface is out of the guide plane, and all points of the wear surface are equidistant from the guide plane, which promotes uniform wear by the metal strip.

A displacement which is perpendicular to the guide plane is particularly preferred, for example, when the wear body is a round disc whose base surface forms the wear surface of the wear body and which is rotatable about its axis of rotation perpendicular to its wear surface, the axis of rotation being the center of rotation round disc lies. In this case, the displacement takes place in the direction of the axis of rotation, which is also perpendicular to the management level. Such

Embodiment is particularly easy to build.

According to a specific embodiment thereof, the distance of its wear surface from the guide plane of the main body module is adjustable for at least one wear body independently of other wear bodies.

This makes it possible to vary the number of lateral guide giving wear body, for example, depending on the requirements of the guided metal strip. As a result, it is possible to take specific account of the need for guidance by means of the guide plane or wear body in specific areas of the device and to adjust it individually in such areas per wear body. Thus, the wear not necessarily required wear body can be reduced and thus the necessary maintenance costs are minimized by a multiple.

Preferably, all wear bodies are designed in this way. According to another embodiment thereof, a plurality of wear bodies, for which the distance of their wear surface from the management level of the base body module is adjustable, is present, wherein it is adjustable in at least one of these wear bodies depending on at least one other of these wear body.

As a result, it is possible to take specific account of the need for guidance by means of the guide plane or wear body in special areas of the device which extend over the extent of groups of wear bodies, and be adjusted as required for such groups. This can be used up the renewal effort for

Lowering the wear body further and making the operation easier and requires less structural effort compared to a adjustability independently.

 Preferably, all of these wear bodies are adjustable as a function of at least one other of these wear bodies, that is to say all wear bodies can be adjusted in combination.

Preferably, the at least one wear body, for which the distance of its wear surface from the guide plane of the main body module is adjustable during the tape run adjustable.

According to a preferred embodiment, the device has at least one

Wear body guide roller, which is guided through a recess of the wear surface of a wear body or an opening of the wear surface of a wear body and at least partially protrudes from this wear surface.

 By an opening of the wear surface is meant a hole in the wear surface which is completely surrounded by the wear surface. In contrast, a recess of the wear surface is not completely surrounded by the wear surface. Accordingly, in the device according to the invention, if necessary, the advantage of lateral guidance can be used by guide rollers, and if that is no longer desired or necessary - for example, in thin metal bands with thicknesses up to 5 mm -, the lateral guidance are made again by the Schleißflächen.

The provision of Schleißkörper guide rollers thus has the advantage that, depending on the thickness of the metal strip to be guided between leadership by Schleißkörper guide rollers and leadership by means of wear bodies can be selected. Or it may, depending on whether there is a risk of spitting corners of the tape head or damage edges of the metal strip, be selected between leadership by Schleißkörper-leadership roles and leadership by means of wear bodies. According to a preferred embodiment, the device has at least one

Wear body guide roller on, at least in

- a parking position

and

- a leadership position

is adjustable.

In the so-called guiding position, the wearer body guide roller is suitable for laterally guiding the metal band running over the metal belt conveyor. In the so-called parking position, it is not suitable for this - then the metal strip is guided by wear body and / or the management level.

In one embodiment, the wear body guide roller is attached to or on a wear body; Preferably, it is adjustable by turning the Schleißkörper in parking position or leadership position.

 The wear body guide roller may also be attached to the main body module, or to other parts of the device, or to adjacent devices.

According to a preferred embodiment, in the guide position, the roller surface of the wear body guide roller by a recess of the wear surface of a

 Led wear body or an opening of the wear surface of a wearer body and protrudes at least partially from this Schleißfläche.

According to one variant, the roller surface of the wear body guide roller lies in the parking position, as seen from the edge of a metal band to be guided in the direction of the wear surface, beyond the wear surface. If the roller surface of the Schleißkörper- guide roller seen in the direction of the wear surface on the other side of the wear surface - in other words, below the Schleißfläche -, it does not contribute to the lateral guidance. In the guiding position, the roller surface of the wear body guide roller protrudes at least partially out of the wear surface - seen from the wear surface in the direction of the main body module's guide plane, or in other words to the edge of a metal strip to be guided. The metal strip is then primarily in contact with the Schleißkörper guide rollers and is guided primarily by them instead of by the Schleißfläche. In this case, the axis of rotation of the Schleißkörper guide rollers is preferably such that the Schleißkörper guide rollers are offset by contact with the metal strip in rotary motion. This ensures a low wear of Schleißkörper- guide rollers, since at least a portion of the metal strip on contact with the

Abrasive body guide roller transmitted energy is converted into a rotational movement of the rollers, instead of contributing to wear. Preferably, the axis of rotation of the wear body guide roller is substantially perpendicular to the direction of the metal strip.

 The Schleißkörper leadership can be adjusted, for example, by moving, or unfolding or folding, or twisting from the parking position in the leading position or back.

 According to another variant, the roller surface of the wear body guide roller projects at least partially out of the wear surface, both in the parking position and in the guide position, from the wear surface in the direction of the metal band.

By rotating the wear body is the position of the opening or recess of the wear surface and the outstanding of this opening or recess

Changed wearer guide roller. Accordingly, by turning the

Wear body in a position in which a metal strip to be guided come into contact with the Schleißkörper- guide roller and can be guided by, the

Leadership position are set. Between leadership by Schleißkörper and leadership by means of Schleißkörper guide rollers can therefore be easily selected.

In the guide position, the axis of rotation of the Schleißkörper guide rollers is preferably such that the Schleißkörper guide rollers by contact with the metal strip in

Be rotated. This ensures a low wear of the

Wear body guide rollers, since at least a portion of the energy transferred from the metal band upon contact with the wearer body guide roller is converted into rotary motion of the rollers rather than contributing to wear.

Preferably, the axis of rotation of the wear body guide roller is substantially perpendicular to the direction of the metal strip.

In the park position, the wear body or the opening in the

Wear surface positioned so that the excellent from the Schleißfläche

Wear body guide roller does not come into contact with the metal strip to be guided - the metal strip is guided by the wear bodies. Accordingly, in the device according to the invention by adjusting the

Schleißkörper guide roller in leadership position, if necessary, the advantage of lateral guidance are used by Schleißkörper guide rollers, and if that is no longer desired or necessary - for example, in thin metal bands with thicknesses up to 5 mm - by adjusting the Schleißkörper-leadership role in the park position lateral guidance be afforded again by the Schleißflächen.

 The provision of such Schleißkörper guide rollers thus has the advantage that, depending on the thickness of the metal strip to be guided between leadership by Schleißkörper- guide rollers and leadership by means of wear bodies can be selected. Depending on whether there is a danger of spitting on corners of the tape head or damaging edges of the metal strip, it can be selected between guiding by means of wear-body guide rollers and guiding by means of wear bodies.

 For example, with thick metal bands - for example, with thicknesses above 5mm - the risk that the band edges of the tape head are damaged by protruding rollers are very low or not at all. For thick metal bands you will therefore the Schleißkörper leadership even before the shrinkage of the metal strip in

Bring leadership.

 Likewise, a combination of guiding the metal strip with Schleißkörper- guide rollers and the Schleißkörper guide rollers upstream or downstream

Wear bodies possible.

Another object of the present application is a

 Method for lateral guidance of metal bands running over a metal belt conveyor

by means of a device for laterally guiding a metal strip comprising at least one main body module with a guide plane and at least one wear body with a substantially planar wear surface,

characterized in that

after a first metal band has passed through the metal belt conveyor and before a second metal belt enters the metal belt conveyor,

the wear body is controlled from a first defined rotational position to a second defined rotational position is rotated, wherein

the wear surface in all defined rotational positions is parallel to the guide plane. There are two or more defined rotational positions. The terms first rotational position and second defined rotational position merely mean that there are two different rotational positions. They do not mean in this context that there are necessarily only two rotational positions.

The terms first metal band and second metal band mean only that it is two different metal bands. In this context, they do not mean that there are necessarily only two metal bands. They do not mean in this context that between two successive metal bands forcibly always turned; rotation can also take place only after several metal bands have passed through the device before another metal band passes through the device; This metal band can also be followed by several metal bands again before turning takes place again.

 For example, ten metal bands may first pass through the device, then rotate before an eleventh metal band passes through the device as the first metal band of a group of ten more metal bands. While metal band eleven through metal band twenty pass through the device, no rotation occurs.

In this way, defined fresh areas of the wear body can be exposed to wear, wherein preferably the guide length is not changed by changing the orientation of the wear surfaces.

According to one embodiment, the method is characterized in that after a first side guiding phase on at least one side of the metal strip by means of

Main body module, and optionally wear bodies and / or Schleißkörper- guide rollers,

in a subsequent second side guiding phase, the lateral guidance on at least one side of the metal strip takes place only by means of wear bodies.

Optionally, the device for laterally guiding a metal strip also comprises at least one wear body guide roller.

In the case of lateral guidance in the second lateral guidance phase, only one wear body or several wear bodies can lead laterally by means of wear bodies.

A first phase of the lateral guidance is called here the first lateral guidance phase. A second phase of the lateral guidance is called here second lateral guidance phase. As described above, there are phases of the lateral guide for a leading metal strip, in which it is advantageous to guide a metal strip by means of the management level, without protruding from this surveys - for example, at the inlet of the tape head. This causes wear at the management level. In such a phase may optionally also a wear body in basic body position - ie in a position in which it does not form a survey from the management level - together with the management level of the main body module take over the lateral guidance of the metal strip. The metal strip will wear out in this case, both the management level of the main body module and the wear surface of the wear body.

If the need for such a lateral guide for the metal strip in question is over - for example, when the tape head has left the range of the device according to the invention - wear of the management level is avoided according to the invention by the leadership for the majority of the metal strip only by means of wear body.

 This can be achieved, for example, with the device according to the invention with at least one wear body, for which the distance of its wear surface from the guide plane of the base body module is adjustable.

 Thus, the distance of the wear surface of the guide plane, and thus the distance to the leading to metal band can be adjusted to a position in which it is closer to the metal strip as the management level of the main body module -

Leading position.

 The Schleißkörper or Schleißflächen can, for example, in the

Leadership position - in which they take over the sole tape guide - are set as soon as the tape head of the metal strip has passed the device for lateral guidance, because then there is no more danger that its corners spit. The wear of the main body module is then significantly reduced for the majority of the tape length. According to another embodiment, the method is characterized in that after a first side guide phase on at least one side of the metal strip by means of basic body module, and optionally wear bodies and / or Schleißkörper- guide rollers,

in a subsequent second lateral guiding phase, the lateral guidance takes place on at least one side of the metal band in one of the following ways: only by means of wear-body guide rollers,

 by means of wear bodies and wear body guide rollers.

In this case, the device for laterally guiding a metal band also comprises at least one wear body guide roller.

In the case of lateral guidance in the second lateral guiding phase, only one sliding body guide roller or more can be used by means of wear-body guide rollers

Guide the wearer guide rollers sideways.

 It can with lateral guidance in the second lateral guidance phase means

Wear bodies and wear body guide rollers laterally guide a wear body or a plurality of wear bodies, and a wear body guide roller or more Schleißkörper- guide rollers.

 Preferably, after the first side guide phase, at least one wear body and / or the at least one base body module are adjusted to a position in which the wear surface of the wear body lies outside the guide plane. It may, for example, a wear body whose wear surface during the first

Side guiding phase is within the management level, are moved further in the direction of the leading metal strip. Or, the guide module may be further moved away from the metal strip to be led so that the wear body, which remains in its original position, is closer to the metal strip than the guide module.

It takes place the lateral guidance of the metal strip in the second

Side guide phase by means of at least one Schleißkörper leadership role. As described above, it is sometimes advantageous to have a guiding function of wear body guide rollers.

According to a preferred embodiment, the method according to the invention proceeds such that lateral guidance takes place on at least one side of the metal strip by means of a plurality of wear bodies during the second side guide phase, during which at least one wear body moves away from the metal strip while losing the contact of its wear surface with the metal strip becomes,

Then this Schleißkörper controlled by a rotation axis in a new defined

Turning position is turned, and then this Schleißkörper is again adjusted by building contact of their wear surface with the metal strip to the metal strip out.

 This makes it possible, during the tape run to be able to respond to wear-related need for reinforcement of the prevailing leadership function. Worn wear bodies can be twisted during the tape run in positions in which still unworn areas of their wear surface are exposed to the metal strip.

According to a preferred embodiment, the type of lateral guidance between sliding guide is changed by means of wear bodies and rolling guide by means of rollers. The rollers may be wearer guide rollers or other guide rollers.

According to a variant, the type of lateral guidance between sliding guide and rolling guide is changed during the lateral guidance of a metal strip. One step in this may be turning the wear bodies to a new defined rotational position, or shifting, unfolding or folding, or twisting

Wear body guide rollers or other rollers for guidance.

According to a preferred embodiment, the type of lateral guidance comprises both sliding guidance by means of wear bodies as well as rolling guidance by means of rollers. The rollers may be wearer guide rollers or other guide rollers.

Device and method according to the invention make it possible to significantly reduce the maintenance effort compared to conventional devices. It will be the

Reduced expenditure of time for the replacement of worn parts, since the wearer must be replaced less frequently than conventional Schleißleisten by repeatedly exposing still unworn areas of the wear surface of a wear body to the metal band. The replacement can take place in the course of other maintenance shutdowns, production loss due to a short maintenance interval for wear surfaces can be avoided. It will also reduce the cost of exchanging

Abrasive bodies kept low because the Schleißkörper can be made easily and cheaply. Brief description of the drawings

Hereinafter, the present invention will be described by way of example with reference to several schematic figures.

FIG. 1 schematically shows a conventional device for the lateral guidance of a metal belt running over a roller table.

 FIG. 2 shows part of a wear strip of a run-in ruler of a known device for the lateral guidance of a metal belt running over a roller table.

Figure 3 shows a section of a device according to the invention for lateral

Guiding a metal belt running over a roller table.

 FIG. 4 shows a device as shown in FIG. 3

 Figure 5 shows for a device according to the invention in recesses of

 Body module arranged wear body.

FIG. 6 shows a view along the section B-B from FIG. 5.

 FIG. 7 shows a device according to the invention with wear body guide rollers in FIG

Park position.

 FIG. 8 shows a view along the section A-A from FIG. 7.

Figure 9 shows a device according to the invention with Schleißkörper guide rollers in leadership position.

 FIG. 10 shows a view along the section C-C from FIG. 9.

 Figure 1 1 shows a largely analogous to Figure 6 figure with respect to distance to

Guide level adjusted wear surface.

 Figures 12 and 13 show opening and recess of the wear surface of a

Schleißkörper.

 Figures 14 to 20 show various embodiments of a wear body.

DESCRIPTION OF THE EMBODIMENTS Examples

FIG. 1 shows schematically a conventional device 1 for laterally guiding a metal belt 2 running over a roller table laterally from above. The metal strip 2 runs in the direction of the arrow towards the driver 3 a coiler. It is by means of

Infeed rulers 4a, 4b guided laterally. FIG. 2 shows a part of a wear bar 5 of an infeed ruler 4 a or 4 b of a known device 1 for the lateral guidance of a metal running over a roller table, it is shown in FIG. 1. By means of the guide level 6, a metal strip is guided. The wear strip is worn and needs to be replaced.

FIG. 3 shows a section of a device according to the invention for the lateral guidance of a metal belt conveyor running over a roller table

Metal strip. Shown is of the device, a base body module 7 consisting of support body 8, carrying a wear plate 9 with a substantially vertical

Management level 10. Also shown are roller table rollers 1 1 a, 1 1 b, 1 1 c, 1 1 d. It is also shown a Schleißkörper 12, the wear surface 12a in the representation lies in a plane with the guide plane 10. The wear body 12 is controlled in a plurality of defined rotational positions rotatable. The wear surface 12a is substantially planar and in all defined rotational positions parallel to the guide plane 10. The wear body 12 is a round disc whose base surface forms the wear surface of the wear body.

The wear body 12 is arranged in a largely round recess of the wear plate 9 - since the wear plate 9 does not completely surround the wear body 12, the recess is not quite round; however, the part comprising the wear body 12 is part of a circle.

You can also see chamfers between the base and the side surface of the round

Slices of Schleißkörper 12, in comparison to Schleißkörper without chamfering to avoid the risk of spitting of the metal strip at the edge between

Serve side surface and base. In an example analogous to Figure 3, which is not shown separately, the wear body is rotatable about an axis of rotation perpendicular to the guide plane. The axis of rotation is at the center of the round disc. The axis of rotation is above the middle between the

Rotary axes of the roller table rollers arranged. FIG. 4 shows a device as shown in FIG. 3. You can see that

Basic body module 7 consisting of support body 8 and the cut wear plate 9 with guide plane 10. The wear body 12 is mounted on an adjustment device, here a Drehverstellmodul 13, which is fixed in the main body module 7. By means of the Drehverstellmoduls 13 of the wear body 12 can be controlled rotated in several defined rotational positions. In addition, by means of Drehverstellmoduls 13, the distance of the wear surface 12a from the guide plane 10 of the base body module 7 are adjusted by the wear body 12 from the

Leave management level 10 out and can be moved back again, which is not shown separately.

FIG. 5 shows wear bodies 15a, 15b, 15c, 15d arranged in largely round recesses 14 of a basic body module. Roller table rollers 16a, 16b, 16c are also shown. The wearer bodies 15a, 15b, 15c, 15d are round disks whose

Base surfaces, the wear surfaces 17a, 17b, 17c, 17d of the wear body 15a, 15b, 15c, 15d form. The wear bodies 15a, 15b, 15c, 15d are controlled in a plurality of defined

Rotational positions rotatable, wherein in all defined rotational positions, the substantially flat wear surfaces are parallel to the guide plane 19. The metal strip 18 - here a steel strip - is guided by the guide plane 19 and the wear body 15a, 15b, 15c, 15d, the wear surfaces 17a, 17b, 17c, 17d in the guide plane 19, out.

Shown for the wear body 15b also several wear marks 20a, 20b, 20c, which has a metal band already in the Schleißkörper 15b - after multiple controlled turning in different defined rotational positions - has been frozen.

Figure 6 shows a view along the section B-B of Figure 5 in the direction

Wear body 15c, wherein the guide plane 19 is not shown separately.

FIG. 7 shows a device largely analogous to FIG. 5 with wear bodies 21 a, 21 b, 21 c, 21 d. There are wear body guide rollers 22a, 22b, 22c, 22d, which is adjustable at least in a parking position and a guide position.

They are shown in Figure 7 in park position. The metal strip 23 - here a steel strip - is through the guide level 24 and wear body 21 a, 21 b, 21 c, 21 d, the

Wear surfaces lie in the guide plane 24, guided.

Figure 8 shows a view along the section A-A of Figure 7 in the direction

Wear body 21 c, wherein the guide plane 24 is not shown separately.

FIG. 9 shows a view largely analogous to FIG. 7, in which reference numbers for parts described in FIG. 7 have been omitted for the sake of clarity. Shown are the Schleißkörper guide rollers 22a, 22b, 22c, 22d of Figure 7 in Leading position. The metal strip 23 is guided by the Schleißkörper guide rollers 22a, 22b, 22c, 22d.

FIG. 10 shows a view along the section C-C from FIG. 9 in the direction

Schleißkörper guide roller 22c, wherein the guide level is not shown separately.

The roller surfaces of the Schleißkörper guide rollers 22a, 22b, 22c, 22d in Figures 7 to 10 protrude both in the park position and in the guide position of the

Schleißfläche seen in the direction of metal strip partially out of Schleißfläche. They are guided through an opening of the wear surface of the respective wear body 21 a, 21 b, 21 c, 21 d and protrude from this wear surface.

 By rotating the Schleißkörper 21 a, 21 b, 21 c, 21 d, the position of the openings of the wear surfaces between Figure 7 and Figure 9 is changed. The outstanding from these openings Schleißkörper-guide rollers 21 a, 21 b, 21 c, 21 d are repositioned accordingly and protrude even after the rotation of the Schleißkörper 21 a, 21 b, 21 c, 21 d out of these openings. Accordingly, they are placed in the leadership position.

The Schleißkörper guide rollers 22a, 22b, 22c, 22d, for example, each on Drehverstellmodulen - as provided in Figure 4 by the reference numeral 13 - attached and rotatable and adjustable by them, so be adjustable in different positions.

They could also be attached to or on the wear bodies, or on

Base module. Figure 1 1 shows a largely analogous to Figure 6 figure. In addition to FIG. 6, a part of the guide plane is also shown by reference numeral 25. When closed, the wear body 15c is shown enclosed in a position in which its wear surface 17c lies in a plane with the guide plane 25. Edged dashed lines it is shown in a position in which the distance of their wear surface from the management level adjusted, here enlarged, was, by the wear body from the management level by a

 Movement is pushed out perpendicular to the management level - by means of an adjusting device not shown in detail.

Figure 12 and Figure 13 show the difference between the recess of the wear surface of a wear body and the opening of the wear surface of a wear body. By an opening of the wear surface is to be understood a hole 27 in the wear surface 28, which is completely surrounded by the wear surface 28; shown in Figure 12. Im

Contrary to this, FIG. 13 shows a recess 29 which is surrounded by a dashed line

Wear surface 30, which is not completely surrounded by the wear surface 30.

FIG. 14 shows a section of an embodiment of a wear body 30 in the unworn state. The wear body 30 is a round disc with a flat wear surface 31. At the edge 32 of the wear body is chamfered. FIG. 15 shows a section of an embodiment of a wear body 33 in the unworn state. The wear body 33 is a round disc with a substantially flat wear surface 34. A guide groove 35 provided from the outset as guide contours for guiding the metal band in the wear surface 34 is shown. At the edge 36 of the wear body is chamfered.

FIG. 16 shows a wear body 33 according to FIG. 15 in a lateral view of the wear surface 34. Several guide grooves 35 can be seen.

FIG. 17 shows a section of an embodiment of a wear body 36 in the unworn state. On a carrier material 37 there is an outer, relatively soft layer 38 for the purpose of forming guide grooves during operation. Between this outer layer 38 and the carrier material 37 is a relatively hard layer 39, which makes a deeper incision difficult.

 These two surface coatings, layer 38 and layer 39, are on

Wear body 36 mounted symmetrically on both sides, so that wear body 36 can be easily reversed after wear of one side and thus the other equally pronounced side facing the metal strip and worn.

Figure 18 shows a side view of a wear body 40. Its wear surface 41 extends around its circumference. Outside the wear surface 41 are a plurality of separate, individual elevations from a surface 43 of the wear body 42, which lies in a plane with the wear surface 41, as guide elevations 42 available.

Figure 19 shows a section of a section along the line A-A through the

Schleißkörper 40 of Figure 18. You can see the profile of the guide projection 42; It can also be seen that on the other side of the trained as a round disk wear body 40 also a guide elevation 44 is present.

Figure 20 shows a section of a Schleißkörper 45, which is designed such that at one edge of the wear surface 46 next to the Schleißfläche 46 a survey 47 with respect to the plane of Schleißfläche 46 is present, this elevation 47 at this entire edge of Schleißfläche 46 available is. The survey is carried out such that their height increases with increasing distance from the edge of the wear surface, so a so-called run-on slope 48 is formed.

This run-in slope 48 and also the guide elevations 42 and 44 from FIGS. 18 and 19 narrow the lateral space for the metal strip during operation. The constriction sets resistance to the run-up of the metal strip.

While the invention has been further illustrated and described in detail by the preferred embodiments, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention.

List of reference signs 1 Device for lateral guidance over a roller table current

Metal tied it

 2 metal band

3 drivers

 4a, 4b inlet rulers

 5 cutting strip

 6 management level

 7 main body module

 8 support bodies

 9 wear plate

 10 management level

 11a, 11b, 11c, 11d roller conveyor rollers

 12 wear body

 12a wear surface

 13 rotary adjustment module

 14 main body module

 15a, 15b, 15c, 15d wear body

 16a, 16b, 16c roller conveyor rollers

 17a, 17b, 17c, 17d wear surfaces

 18 metal band

 19 management level

 20a, 20b, 20c Schleißspur

 21a, 21b, 21c, 21d wear body

 22a, 22b, 22c, 22d wear body guide rollers

23 metal band

 24 management level

 25 management level

 26 management level

 27 holes

 28 wear surface

 29 recess

30 wear surface 31 wear surface

32 edge

 33 wear body

34 wear surface

35 guide groove

36 edge

 37 carrier material

38 shift

 39 shift

 40 wear body

41 wear surface

42 leadership surveys

43 area

 44 Management survey

45 wear body

46 wear surface

47 survey

48 starting slope

List of quotations

Patent Literature DE1427923

DE69408332T2 US2818954

JP05161917

Claims

claims 1) Device for lateral guidance (1) of a metal belt running on a metal belt conveyor (2) comprising at least one main body module (7) having a substantially vertical guide plane (10), characterized in that at least one wear body (12) with a wear surface (12a) which is rotatable in a plurality of defined rotational positions is present, and the wear surface (12a) is substantially planar and in all defined rotational positions parallel to the guide plane (10). 2) Device according to claim 1, characterized in that a plurality of rotatable in several defined rotational positions Schleißkörper (12) with wear surface (12 a) are present, and at least one of these Schleißkörper (12) independently of others Wear bodies (12) is rotatable. 3) Device according to claim 1, characterized in that several in a plurality of defined rotational positions rotatable wear body (12) with wear surface (12a) are present, and at least one of these Schleißkörper (12) depending on at least one other of these Schleißkörper (12) is rotatable. 4) Device according to one of claims 1 to 3, characterized in that it comprises at least one wear body (12), for the distance of its wear surface (12a) of the guide level (10) of the base body module (7) is adjustable. 5) Device according to claim 4, characterized in that for at least one wear body (12) independently of other wear bodies (12) of the distance of its wear surface (12a) of the guide plane (10) of the base body module (7) is adjustable. 6) Device according to claim 4, characterized in that a plurality of wear body (12), for which the distance of their wear surface (12a) of the guide plane (10) of the base body module (7) is adjustable, are present, and he at least one of these wear body (12) is adjustable depending on at least one other of these Schleißkörper (12). 7) Device according to one of claims 1 to 6, characterized in that it comprises at least one Schleißkörper-guide roller (22 a, 22 b, 22 c, 22 d) through a recess (29) of the wear surface (30) of a wear body (12) or an opening of the wear surface (27) of a wear body (12) is guided and at least partially protrudes from this wear surface. 8) Device according to one of claims 1 to 7, characterized in that it comprises at least one Schleißkörper guide roller (22a, 22b, 22c, 22d), at least in - a parking position and  - a leadership position is adjustable. 9) Device according to claim 8, characterized in that in the guide position, the roller surface of the wear body guide roller (22a, 22b, 22c, 22d) by a Recess (29) of the wear surface (30) of a wear body (12) or an opening of the wear surface (28) of a wear body (12) is guided and at least partially protrudes from this wear surface (28,30). 10) Device according to one of claims 1 to 9, characterized in that the one or more wear bodies are chamfered laterally. 1 1) Device according to one of claims 1 to 9, characterized characterized at least one wear surface from the outset guide contours for guiding the metal strip. 12) Device according to one of claims 1 to 9, characterized in that at least one wear body has at least one carrier material with a coating. 13) Device according to one of claims 1 to 9, characterized in that the Schleißkörper are symmetrical so that it comprises at least two equally pronounced sides with wear surfaces. 14) Device according to one of claims 1 to 9, characterized in that the wear body has at least one guide elevation, preferably as a run-up slope or as a discrete elevation. 15) Method for lateral guidance of metal bands running over a metal belt conveyor (2) by means of a device for lateral guidance (1) of a metal strip comprising at least one main body module (7) with guide plane (10) and at least one wear body (12) with a substantially flat wear surface (12a), characterized in that after a first metal band has passed through the metal belt conveyor and before a second metal belt enters the metal belt conveyor, the wear body (12) is controlled rotated from a first defined rotational position to a second defined rotational position, wherein the wear surface (12a) is parallel to the guide plane (10) in all defined rotational positions. 16) Method according to claim 15, characterized in that after a first side guide phase on at least one side of the metal strip (2) by means of basic body module (7), and optionally wear bodies (12) and / or Wear body guide rollers (22a, 22b, 22c, 22d), in a subsequent second side guiding phase, the lateral guidance on at least one side of the metal strip (2)  only by means of wear bodies (12). 17) Method according to claim 15, wherein the lateral guide device (1) has at least one wear body guide roller (22a, 22b, 22c, 22d), characterized in that after a first side guide phase on at least one side of the metal strip (2) by means of basic body module (7), and optionally wear bodies (12) and / or Wear body guide rollers (22a, 22b, 22c, 22d), in a subsequent second side guiding phase, the lateral guidance on at least one side of the metal strip (2) in one of the following ways:  only by means of wear body guide rollers (22a, 22b, 22c, 22d),  - By means of wear bodies (12) and wear body guide rollers (22a, 22b, 22c, 22d). 18) Method according to claim 16 or 17, characterized in that after the first side guiding phase at least one wear body (12) and / or the at least one Main body module (7) is adjusted to a position in which the wear surface (12a) of the wear body (12) outside the guide plane (10). 19) Method according to one of claims 16 to 18, characterized in that during the second side guide phase, the lateral guidance on at least one side of the metal strip (2) by means of several wear body (12), wherein during the second side guiding phase at least one wear body (12) is displaced away from the metal strip (2) with loss of contact of its wear surface (12a) with the metal strip (2), then this wear body (12) is rotated around a rotation axis controlled into a new defined rotational position, and then this wear body (12) is again adjusted to the metal band (2) by establishing contact of its wear surface (12a) with the metal band (2). 20) Method according to one of claims 15 to 19, characterized in that the type of lateral guidance between sliding guide by means of wear bodies (12) and rolling guide is switched by means of rollers. 21) Method according to one of claims 15 to 19, characterized in that the type of lateral guide comprises both sliding guide means of Schleißkörpern (12) and rolling guide by means of rollers.