EP2723512A1

EP2723512A1 - Drive roller changing system for drivers of a rolling mill system

Info

Publication number: EP2723512A1
Application number: EP12723662.8A
Authority: EP
Inventors: Jürgen Schiefer; Klaus FRAUENHUBER; Friedrich Moser
Original assignee: Siemens VAI Metals Technologies GmbH Austria
Current assignee: Primetals Technologies Austria GmbH
Priority date: 2011-06-22
Filing date: 2012-05-24
Publication date: 2014-04-30
Anticipated expiration: 2032-05-24
Also published as: BR112013032639A2; CN103781563B; RU2014101696A; SA112330622B1; RU2602918C2; TW201318721A; AU2012272114B2; ZA201308987B; CA2840114A1; WO2012175277A1; EP2723512B1; KR101906388B1; JP2014522727A; CA2840114C; AT511341B1; AT511341A4; CN103781563A; JP5823612B2; KR20140038537A; MX336353B

Abstract

The invention relates to a device and to a method for changing drive rollers of drivers of a rolling mill system. In addition to the driver station (23) and/or reel station (24) of the hot-rolling mill system, at least one driver roller storage station (27) and at least one driver roller conditioning station (28) are present, preferably viewed from the hot-rolling mill stations in the direction of the reel station beyond the swift station on the extension of the longitudinal axis of the hot-rolling mill system. Likewise, at least one manipulator (29) is present which is displaceable at least between the driver station and the driver roller conditioning station and the driver roller storage station, and optionally also the hot-rolling station.

Description

description

Description of the Invention Drive roller changing system for drivers of a rolling mill plant. Field of technology

The subject invention relates to a device and a method for changing drive rollers of drivers of a rolling mill.

PRIOR ART In driving devices, also called drivers, metal strip is clamped, driven or deflected between a pair of rollers. Drivers typically come in rolling mills of rolling mills, for example

Hot rolling mills, where they are placed before rolled strip reels of the coiler stations to adjust the strip tension in front of the reel by means of two rollers, namely the drive roller and the support drive roller.

Steering drivers have the additional task of lateral

To reduce migrations of the rolled strip before rewinding. For this purpose, for example, the pivotable drive roller is driven and against the stationary support drive roller

employed that by the position of the drive roller relative to the Stützreibrolle the rolled strip undergoes a desired strip tension and a desired lateral displacement.

Such steering drivers are known, for example, from EP747147B1 or AT500689B1.

EP747147B1 shows a steering driver whose

pivotable drive roller between two rockers by means of the two ends of the drive roller axle is mounted. Both wings are rigidly connected to a torsion spring of a frame, which forms an axis of rotation for the wings. In AT500689B1 a similar steering actuator is disclosed in which the rockers, however, can be pivoted independently of one another on an axis of rotation of a frame. The drive roller and the support drive roller of a steering actuator must be regularly cleaned and polished, as

for example, by carbon caking, on the

aufhaspelnden tape existing dirt particles, or caused by the onset of surface defects in the

rewinding tape the surface of the drive roller and the support roller are uneven, which in turn can lead to damage to the surface of the reeled tape. In EP747147B1 or AT500689B1, the driving roller axle is mounted on a bearing area of the rocker arms, wherein the driving roller is located below the rocker arm. The bearings of the drive roller to avoid damage during the tapping, for example, by spring-activated

Balancing set free of play.

A removal of the drive roller upwards is not possible, since such removal the rocker is in the way and blocks the way up. For a removal down, right or left in the operating state, the way through

Support drive roller and the frame locked. Before a removal is possible, therefore, only an obstructed path must be opened. To facilitate cleaning and polishing of the capstan and prop stretcher, this will normally be the capstan

stored swinging couple pivoted by means of swing cylinders in an intermediate position; that is also for

Replacing the drive roller necessary. The intermediate position is often reached after the pivoting of the pair of rockers by 180 °. The following are the drive roller and the

Support drive roller when installed usually by hand

cleaned and polished or polished. By the Cleaning and grinding or polishing in the system results in a security risk. This is because the people involved have to go inside the plant between the plant parts, which must be reliably turned off and blocked. There is also one

Security risk due to the time constraints to carry out these activities, as cleaning and grinding

or polishing in the time required for the work roll change of scaffolding period of 10 to 15 minutes must be performed. If, by cleaning,

Sanding and polishing are not sufficiently uniform

Surface on the drive roller or support drive roller can produce, or in case of damage, the drive roller or the support drive roller must be removed after pivoting the wings out of the frame and replaced with a new drive roller or Stützreibreibrolle. For this purpose, the entire swing construction including the drive roller must be removed in the case of the steering drivers in accordance with EP747147B1 or AT500689B1. Due to the variety of to be solved

Connecting elements and the mass of the frame including the drive roller causes the maintenance of driving rollers and Stützreibrollen a considerable amount of time. In addition, the drive roller is poorly accessible for maintenance when it is located between the wings.

According to the state of the art drivers are known which overcome the disadvantages of the prior art and which less time consuming work with less

Risks of changing the drive roll cause more than traditional drivers and procedures.

Such a driver for a Stahlbandhaspelanlage has at least one mounted on a frame Stützreibreibrolle, and at least one engageable against the Stützreibreibrolle »drive roller which is mounted on at least one frame connected to the rocker, wherein the drive roller on a

Bearing area of the swingarm is attached,

in which

the storage area is open for insertion or for Removing the drive roller to the side and / or up when the rocker position in operating position, and the driver has a fixing mechanism for fixing the drive roller to the storage area.

Under the storage area is to be understood the area of the rocker, in which the drive roller is attached to the rocker.

The storage area is for insertion or for

Removing the drive roller to the side and / or up at

Position of the rocker in the operating position open, therefore, the storage area is not an expansion of the drive roller to the side and / or up in the way. A drive roller can therefore be removed if necessary to the side and / or up from the rocker without the rocker with the

Remove the drive roller substantially from the operating position or swingarm with the drive roller completely

dismantled must. Operating position is a position of the rocker to be taken, which is taken in normal operation of the driver.

The driver has a fixing mechanism for fixing the drive roller to the storage area. This ensures during operation that the drive roller does not undesirably break off to the side and / or upwards. In the fixed state is a controlled displacement of the drive roller in

different operating positions possible.

Preferably, the positioning of the drive roller for

Stützreibrolle in the fixed state by changing the

Setting the fixation mechanism in different

Positions changeable.

According to one embodiment, the fixing mechanism comprises a displaceable latch, which is preferably fixable to the rocker.

In another embodiment, the

Fixation mechanism a folding device whose parts are around at least one axis attached to the rocker are hinged, and which are fixable to the rocker. For example, it may be two interlockable arms that are locked by a movable wedge. Each of the arms works on a different axis.

The support drive roller is located below the drive roller. A removal of the support friction roller up is therefore not possible as long as the drive roller is installed in the driver. When the drive roller is removed, is for the

Support drive roller the way open for a removal.

If the drive roller between a pair of swing

is mounted, the distance of the rocker is preferably greater than the length of the support drive roller. This ensures that the support drive roller can be removed by the resulting due to removal of the drive roller free space upwards. If the distance of the rockers in the operating position is less than the length of the Stützreibrolle, it is preferred that at least one of the rockers is displaceable or pivotable relative to the other rocker, when the drive roller is removed. In this way it is achieved that the

Support drive roller can be removed.

Preferably, the steel strip coiler is a

Steel strip coiler for hot strip. Preferably, the driver is a steering driver.

According to a preferred embodiment, the drive roller and the support drive roller are arranged in a holding device. The holding device, which may be a holding frame, for example, thus contains both the drive roller and the

Supporting driving roller. This makes it possible, for removing or for inserting a pair of driving roller and supporting drive roller only to engage the holding device and to have to remove it from the driver.

Because the drive roller and the support drive roller need not be removed individually or inserted individually into the driver, removal and insertion can be accomplished more quickly.

The Stützreibrolle can stationary or displaceable on

Be stored frame.

According to one embodiment, the drive roller axle and / or the support drive roller axle around which the drive roller or the support drive roller rotates consist of at least two drive roller axles and / or

Supporting friction roller parts, wherein at least one of

Treibrollenachsteile than the cylindrical body of the

Drive roller or support drive roller detachably fastened - for example, via a connecting flange, a

Perforated disc with sliding driving pin, or

Claw coupling - shaft stub is executed. Of the

Stub shaft can be designed as a hollow shaft, in which to drive the drive roller or the

Stützreibrolle a motor-driven shaft is inserted. This allows for a quick removal of the drive roller and / or Stützreibrolle from the driver, which reduces a caused by time pressure during capstan change security risk.

According to one embodiment of the driver is the

Stützreibrolle laterally removed in the direction of its longitudinal axis from the driver. It can also be inserted laterally in the direction of its longitudinal axis into the driver.

In the drivers shown in EP747147B1 or AT500689B1, one end of the rockers is pivotable about an axis of rotation, while the other end of the rockers is pivoted with one Actuating device such as a

Pressure medium cylinder, preferably a hydraulic cylinder, is connected. By adjusting this actuator, the rockers can be pivoted about its axis of rotation, for example, to enable the removal of the drive roller or to control or regulation of the distance of the drive roller and Stützreibrolle.

The storage area of the drive roller is located between the pivotable end and the end of the rocker connected to the actuating device.

Also in the driver according to the prior art, the rockers are pivotable about an axis of rotation arranged in a pivot axis of the swing arm, and they are in an operating range with an actuator

connected. In this case, the storage area of the drive roller as in EP747147B1 or AT500689B1 between the

Rotary axis range and the operating range are located.

In another embodiment, the

Drehachsenbereich between the storage area and the

Actuation are located. An advantage of such

Embodiment is that when pressing the

Drive roller forces flow better into the swingarm and for the swingarm cheaper stress conditions are generated. The effective distance of an actuating device acting on one end of the rocker can be controlled in such a way

Also structurally easier to enlarge construction as in embodiments as embodied in EP747147B1 or AT500689B1. By increasing the effective distance equal forces can be achieved with smaller actuators, or achieve greater forces with the same actuators.

Another internal prior art is a method for removing a drive roller from a driver according to the internal state of the art.

This method is characterized in that it includes the steps - opening the fixing mechanism,

Removing the drive roller to the side and / or upwards from the driver,

includes.

By opening the fixing mechanism is meant that the fixation of the drive roller is solved at the storage area.

The support drive roller in a driver is going through

Fixing devices held in the driver to drive in

Normal operation to not change their position at all or to change their position beyond an acceptable level. The support drive roller can be fixed, so that no movement is possible. It may also be displaceable to an acceptable or desired extent. What extent of displacement acceptable

or desired, depends on the respective

Operating state. In order to change the deflecting forces of the driver depending on the strip thickness and strip quality, for example, the distance of the axes of the driving roller and the supporting drive roller is variable to a certain extent.

An embodiment of the method according to the internal prior art is characterized in that it according to the

In addition, remove the capstan from the steps

- Release fixation devices for fixing the

Support drive roller in the driver,

- Removing the Stützreibrolle up the driver, includes.

By resulting from the removal of the drive roller opening and the support drive roller upwards out of the

Driver are taken. According to another embodiment, the Stützreibrolle for removing the side, that is in the direction of her

Longitudinal axis, are pulled out of the driver. This can be before or after removing the drive roller according to the invention respectively. This can also be done while removing the drive roller from the driver; In this way, removal of the drive roller and the support drive roller can be carried out faster than if the two withdrawals take place successively. Then, the method according to the internal state of

Technique while removing the capstan in addition to the steps

- Release fixation devices for fixing the

Support drive roller in the driver,

- Remove the support drive roller by pulling it sideways out of the driver.

According to a preferred embodiment, the drive roller and the support drive roller in pairs by removing a

Holding device in which a pair of drive roller and

Stützreibrolle is arranged, taken from the driver.

The internal state of the art is attached in the attached

schematic figures described by way of example.

Figure la shows a side view of an embodiment of a

Driver according to the state of the art.

FIG. 1b shows a driver according to FIG

elevated oblique view.

Figure 2 shows a view of a driver according to Figure lb from an elevated perspective view with in one

Holding device arranged drive roller and Stützreibrolle.

Figure 3 shows an embodiment of a driver according to the prior art, in which the

Drehachsenbereich 11 between the storage area 7 and the

Operating area 12 is located.

Figure 4 shows a driver according to the internal state of the art with removed support drive roller from an elevated

Oblique view.

Figure 5 shows an alternative for the fixing mechanism for fixing the drive roller on the storage area.

Figure 6 shows another embodiment of a driver according to the prior art, in which the Rotary axis region 11 between the storage area 7 and the actuating portion 12 is located.

Figure la shows a side view of a driver 1 according to the internal state of the art for a steel strip coiler, especially a steering driver for a hot strip coiler. The driver 1 comprises a mounted on a frame 2

Stützreibrolle 3, and one engageable with respect to the support drive roller drive roller 4. In the figure 1, the drive roller 4 and the support drive roller 3 are only by dashed lines

Lines represented as they are hidden in the side view of the frame 2 and other parts of the driver. The capstan 4 is supported on a pair of wings 5a, 5b connected to the frame. In the side view of Figure 1, only one rocker 5a can be seen, the second rocker 5b of the pair is hidden in this view by rocker 5a. The pair of rockers 5a, 5b is in the operating position. The pair of rockers 5a, 5b is pivotable about an axis of rotation 6 of the frame 2. The drive roller 4 is attached to a storage area 7 of the rockers. The storage area 7 is open for insertion or removal of the drive roller 4 to the side upwards with the wings in position

Operating position. The storage area is shown with a corrugated closed line. A fixing mechanism for fixing the drive roller 4 at the storage area 7 is present, it is designed as a sliding latch 8. In the

shown position of the bolt 8, this is not yet in its final position in which he fixed the drive roller 4 at the storage area 7, moved. For clarity, a part of the rocker 5 is shown cut, so that the course of the bolt 8 in the rocker 5 is partially shown. When the latch 8 is moved from the position shown to its end position, as shown in the following figure lb, on the one hand the drive roller 4 is fixed, and on the other hand, the Ausbalancierungstöpfe 20a, 20b for play-free position of the bearings of the drive roller 4 is activated. FIG. 1b shows a driver 1 according to FIG. 1a from an elevated oblique view. Parts identical to FIG. 1a are given the same reference numbers. In contrast to Figure la, the bolt 8 of the fixing mechanism in his

End position shown in which he the drive roller on

Storage area 7 of the wings 5a, 5b fixed. Drive roller 4 and support drive roller 3 can be seen better than in Figure la. The second rocker 5b of the pair of rockers 5a, 5b can be seen in contrast to FIG.

In both FIG. 1 a and FIG. 1 b, one end of the rockers 5 a, 5 b is respectively connected to an actuating device, specifically a hydraulic cylinder 9 a, 9 b. By

Adjustment of these hydraulic cylinders 9a, 9b, the

Swinging 5a, 5b are pivoted about its axis of rotation 6, for example, the distance from the drive roller 4 to

Adjust support roller 3.

The storage area 7 of the drive roller is located between the pivotable about the axis of rotation 6 and the end with the

Hydraulic cylinders 9a, 9b of the actuator

connected end of the wings 5a, 5b.

FIG. 2 shows a further view of a driver according to FIG. 1b from an elevated oblique view. Parts that are identical to FIG. 1 b are given the same reference numbers. in the

Difference to Figure lb is the latch 8 of the

Fixing mechanism shown in its initial position in which he does not fix the drive roller 4 at the storage area 7. Drive roller 4 and support drive roller 3 are not installed in the driver 1. They are in one

Holding device, especially a holding frame 10, arranged. Installation or removal of the drive roller 4 and

Stützreibrolle 3 takes place by inserting or removing the holding frame 10 in the frame 2 of the driver. 1

Figure 3 shows a view of a driver according to the internal prior art in a side view analogous to Figure la. Parts identical to FIG. 1a are given the same reference numbers. to better clarity, drive roller 4 and support friction roller 3 are not shown. The rotation axis 6 is arranged in a rotation axis region 11 of the rocker 5a. The hydraulic cylinder 9a is disposed in an operating portion 12 of the rocker 5a. In contrast to FIG. 1 a, the axis of rotation area 11 is located between the storage area 7 and the actuation area 12.

Figure 4 shows a view of a driver according to the internal state of the art analogous to Figure lb from an elevated

Tilt. Parts that are identical to FIG. 1 b are given the same reference numbers. In the driver 1, no drive roller is used and not shown accordingly. The

Support drive roller 3 is also not used. FIG. 4 shows the support drive roller in the removed state. The

Stützreibrolle 3 is laterally removed in the direction of its longitudinal axis from the driver 1 or inserted into the driver 1. FIG. 4 shows a removal frame on which the support drive roller 3 is executed from the driver 1

or introduced into the driver 1.

The fixing mechanism for fixing the drive roller 4 on the storage area 7 does not have to be a sliding latch 8

be executed.

FIG. 5 shows an alternative fixing mechanism comprising a folding device with two folding arms 14, 16, which can be moved by a movable wedging device 18

be locked. Each of the arms 14, 16 folds about another axis, arm 14 about axis 15, and arm 16 about axis 17. The two arms 14, 16 are connected via the axes 15, 17 with the rocker 5a. The movable one

Wedge device 18 is attached to the arm 16; through a

Hydraulic cylinder 19, it is movable. Arm 14 points

Bulges that fit in indentations on the movable wedge device 18. When closing the

Fixation mechanism fold the arms 14, 16 in the

shown position, and the hydraulic cylinder 19 moves the movable wedge device 18 such that the

Indentations slide over the bulges. Thus, the two arms 14, 16 are locked together. Figure 6 shows a view of a driver according to the internal prior art in side view analogous to Figure la and Figure 3. Parts identical to Figure la are provided with the same reference numerals. The rotation axis 6 is arranged in a rotation axis region 11 of the rocker 5a. The hydraulic cylinder 9a is disposed in an operating portion 12 of the rocker 5a. As in FIG. 3, unlike FIG. 1 a, the axis of rotation 11 is located between the bearing area 7 and the actuating area 12. FIGS. 3 and 6 differ in the shape of the rocker 5 a and the manner in which they are used

Drive roller is mounted on the bearing area of the rocker.

When using drivers such as EP747147B1 or

AT500689B1 known drive roller and Stützreibrolle be removed individually by means of hall crane from the driver and replaced with a repaired in a workshop drive roller or Stützreibrolle. An exchange usually takes between 5 and 10 hours and is therefore only in the course of a planned shutdown of the rolling mill

carried out. With the above-described driver of the prior art, replacement can be performed in 10 to 15 minutes. An exchange can therefore also be carried out during the operation of the rolling mill in a short rolling break or simultaneously with a work roll change. Accordingly, the surfaces of the capstan rollers and supporting friction rollers do not need to be polished in the driver as used with drivers as known from EP747147B1 or AT500689B1, but it is possible to polish without stalling the mill equipment and thus perform perfect surface quality outside the driver.

When using the above-described driver according to the prior art, when using rolling mills, those for use with drivers such as EP747147B1 or

AT500689B1 are known to be an exchange of

Driver rollers or support rollers depending on the availability of the hall crane of the rolling mill. In addition, will be

Replacement roles mostly in spatially distant so-called

Rollshop stored and processed, so that long transport routes are to be mastered. This will be a flexible, up

changing production needs respectively

changing requirements for drive rollers and Stützreibrollen incoming, changing the drive rollers and Stützreibrollen difficult.

Summary of the Invention Technical Problem

It is the object of the present invention to provide apparatus and methods, especially when using the above-described driver according to the internal state of the

Technique over the prior art more flexible and faster exchange of drive rollers and Stützreibrollen, as well as their processing in the immediate vicinity of the driver

enable . Technical solution

This task is solved by a

Hot rolling mill, comprising arranged successively along a longitudinal axis of the hot rolling mill

several hot rolling stations,

at least one driver station,

at least one coiler station,

which is characterized in that

next to driver station and / or coiler station,

preferably viewed from the hot rolling stations in the direction of the coiling station, beyond the coiling station, on the extension of the longitudinal axis of the hot rolling mill, at least one driver roller storage station and at least one driver roller processing station are present, and that at least one at least between

the driver station and the driver roller processing station and the driver roller storage station, possibly also the hot rolling stations, movable manipulator is present.

Driver roller storage station

Driver roll preparation station and manipulator are parts of a capstan change system.

If several reel stations are present, these parts are preferably beyond the last in the strip running direction

Coiler station arranged. If multiple driver stations and / or more

Driver roll storage stations and / or multiple

Driver roll preparation stations are the manipulator between all these driver stations and

Driver roller recycling stations and

Driver roller storage stations movable.

That driver roll storage station and

Driver roll preparation station next driver station and / or coiler station means that they are in the immediate vicinity at a distance up to 40 meters, preferably up to 30 meters, more preferably up to 20 meters, most preferably up to 10 meters, are arranged.

This shortens transport routes and saves time.

The longitudinal axis of the hot rolling mill is in

Bandwalzrichtung - also called strip running direction - too

understand, as in the direction of the hot rolling stations to the coiler station.

Under the term hot rolling stations are the parts of the

To understand hot rolling plant, in which is rolled to produce hot strip. The term driver station is to be understood as meaning a part of the hot rolling mill in which a driver drives the hot strip. If multiple drivers are present, the hot rolling mill includes multiple driver stations as shown in FIG.

The term coiler station is part of the

To understand hot rolling plant, in which the hot strip is wound on a reel. If several reels are present, the hot rolling mill comprises several

Coiler stations, as shown in Figure 8.

A driver station is not part of a coiler station.

With driver rollers while the roles are meant that are used in the driver station for driving, so driving rollers and Stützreibrollen. The term manipulator is an apparatus too

by means of which to the components of the

Hot rolling plant manipulated - for example, remove and / or insertion of drive rollers from or in TreiberStation, driver roller preparation station,

Driver roll storage station - can be, for example, a crane or a robot.

For example, in the driver roll preparation station, driver rolls are ground and / or polished, or

Driver rolls assembled or disassembled. so

prepared driver rolls can subsequently in the

Driver roll storage station can be used. In the

Driver role storage station are possibly also never used, never prepared driver roles available.

By the inventive arrangement of

Driver roll storage station and

Driver roll preparation station and the provision of a Manipulators can be used when replacing drive rollers

Transport routes are shortened and dependency on the availability of the hall crane can be avoided. To achieve a

maximum benefit in terms of transport routes, the parts of the drive roller changing system as close to the

Driver stations arranged. To achieve maximum benefits in terms of transport routes are the

Driver roll storage station and

Driver roll preparation station as close as possible to each other.

It is therefore preferred if the driver roller storage station, driver roller processing station and manipulator are arranged in the rolling hall of the hot rolling mill. Advantageous Effects of the Invention

According to a preferred embodiment of the present invention

Invention is the manipulator on - at least above and / or next driver station, reel station,

Drift roll preparation system and capstan changing station, possibly also on the hot rolling stations, running crane runways running - crane is.

Preferably, a manipulator is present. Thus, the construction effort is limited. But it can also be several

Manipulators may be present, for example, two, three, four or more.

According to a preferred embodiment of the present invention

Invention is to the manipulator a device for

Surface inspection and / or a device for polishing the drive rollers and / or Stützreibrollen mounted.

Testing and polishing can take place while the

Driver rollers are installed in the driver station or after they have been removed.

According to another preferred embodiment of the

present invention is in addition to the manipulator between the driver station and the

Driver roller recycling station and the

Driver roll storage station mobile

Apparatus for surface testing of the driving rollers and / or supporting rollers,

and or

Apparatus for polishing the driving rollers and / or

Supporting driving rollers

available .

Testing and polishing can take place while the

In these two embodiments can with a

movable manipulator devices for surface testing of the driving rollers and / or supporting friction rollers,

and / or devices for polishing the drive rollers and / or Stützreibrollen

simply be transported to the driver rolls.

Another object of the present invention is a method for, preferably automatic, change of

Drive rollers and / or support rollers in one

Hot rolling mill according to the invention,

which is characterized in that

it comprises the steps of a) releasing the drive rollers to be replaced and / or

Supporting driving rollers

by a first driver station containing them

by opening a

fixing the drive rollers and / or support drive rollers to be replaced

fixing mechanism

the first driver station, b) removal of the drive rollers to be replaced and / or

Support rollers to the side and / or up from the first driver station by means of a first manipulator, c) method of

taken from the first driver station

Driving rollers and / or Stützreibrollen holding

first manipulator

to a first driver roll storage station and / or a first driver roll preparation station, d) storing the

held by the first manipulator, from the first

Driver station taken,

Driving rollers and / or support rollers

in the first driver roller storage station and / or the first driver roller preparation station, e) removal of drive rollers and / or support drive rollers to be inserted into the first driver station

out

the first driver roll storage station and / or the first driver roll preparation station, or off

a second driver roller storage station and / or a second driver roller processing station, by means of the first manipulator and / or a second

Manipulator, f) method of after step e) the driving rollers and / or Stützreibrollen holding first and / or second

Manipulator for the first driver station, g) Insertion of the drive rollers and / or Stützreibrollen located after step f) at the first driver station in the first driver station by means of the first and / or second manipulator. These steps can be done in alphabetical order of their name, or in a different order.

For example, after removing driver rolls from a driver by means of a manipulator, driver rolls already held by this manipulator may be inserted into the driver before the removed driver rolls from the manipulator to a driver roll storage station

and / or drive roller processing station procedure and stored there. Accordingly, steps that would

Removing driver roles to be inserted into the driver from a driver roll storage station and / or

Driver roll preparation station, take place before these driver roles are inserted into the driver. In principle, the method attempts to select the sequence of method steps in such a way that the transport paths are minimized.

In one embodiment of the method according to the invention are in the first and / or second

Driver roll preparation station prepared drive rollers and / or support rollers by means of the first and / or second manipulator from the first or second drive roller processing station

taken, then

the first and / or second manipulator holding the removed drive rollers and / or supporting friction rollers for the first

and / or the second driver roller storage station, and then

the removed drive rollers and / or Stützreibrollen by means of the first and / or second manipulator in the first

and / or the second driver roll storage station. This means that prepared drive rollers and / or Stützreibrollen after processing in the

Driver roll memory before they are reinstalled in a driver.

Of course, recycled drive rollers and / or Stützreibrollen after processing also directly - that is, without prior placement in the

Drive roller storage station - used in a driver. This is already shown in the sequence of steps e) to g) in the above described methods.

The method preferably takes place automatically. This automatically means that after the triggering of the procedure by an operator from the control panel of the hot rolling mill, the procedure runs without further interaction with the operator. The operator can be a human or a computer system.

The triggering may be caused, for example, by the occurrence of, for example, one of the following cases:

- Packing or surface damage to the

Driver rollers, determined, for example, by a surface-scanning detection device for detecting surface defects,

- Breakage of driver rolls

- Outbreak of stock or material

Desire to use a different driver roller type, for example, due to change of the desired

Product, as amended claims to the

Strip surface; as an example the rolling of

corrugated sheets

The process according to the invention can also be semiautomatic; that means that compared to one

automatically taking place in addition to triggering the method, at least one further step by a

human operator is controlled; For example, the operation of a crane becomes the operation of one of the crane depending crane control done by a human operator.

With the present invention, it is possible for the best quality results of the product without stopping the

Rolling mill system to be able to quickly insert driver rolls optimally matched to the product into the driver. Thus, the wear of the driver rollers can be optimally controlled - for example, it is possible in the production of Riffelblechen specially designed for this purpose

Use driver roles while sparing driver roles used for other purposes.

In addition, a manipulator present according to the invention can also be used differently, for example for the maintenance or replacement of components of the rolling mill system installed in the effective range of the manipulator, for example wear plates of the inlet guides, surface inspection of the roller table rollers, the wear plates.

Brief description of the drawings

FIG. 1 a shows a side view of an embodiment of a driver according to the prior art.

FIG. 1b shows a driver according to FIG

elevated oblique view.

Holding device arranged drive roller and Stützreibrolle.

Drehachsenbereich 11 between the storage area 7 and the

Operating area 12 is located.

Oblique view. Figure 5 shows an alternative for the fixing mechanism for fixing the drive roller on the storage area.

FIG. 6 shows a further embodiment of a driver according to the prior art, in which the

Rotary axis region 11 between the storage area 7 and the actuating portion 12 is located.

FIG. 7 shows an illustration analogous to FIG

According to the invention designed as a crane manipulator is arranged over a driver.

FIG. 8 shows the arrangement of hot rolling stations,

Driver station and coiler station in a hot rolling mill according to the invention.

Description of the embodiments

In FIG. 7, a manipulator designed as a crane 21 is arranged above a driver 1. The crane 21 on running above driver station, reel station, drift roller processing plant and driving roller changing station crane runways 22a, 22b continuously movable between the driver 1 comprehensive driver station and the stations not shown

Driver roll recycling station and

Driver roll storage station.

FIG. 8 shows how, in a rolling mill coiler plant, a hot rolling mill according to the invention has several

Driver stations 23a, 23b, 23c and a plurality of coiler stations 24a, 24b, 24c along a longitudinal axis 25 of

Hot rolling mill in strip rolling direction are arranged.

Inlet guides 26a, 26b, 26c for the driver stations 23a, 23b, 23c are also shown. Hot rolling stations of

Hot rolling mill are not shown for clarity, they are left of the inlet guide 26a

arranged.

Beyond the last in the direction of strip rolling

Coiler station 24c, a driver roller storage station 27 and a driver roller processing station 28 are provided on the extension of the longitudinal axis 25 of the hot rolling mill. One between the driver stations 23a, 23b, 23c and the Driver roll preparation station 28 and the

Driver roller storage station 27 movable - indicated by a double arrow - manipulator 29, designed as a crane, is also present. The crane runways 30a, 30b on which the crane is movable are also shown. Since the manipulator 29 can also be moved between the hot rolling stations (not shown) and the driver roller processing station 28 and the driver roller storage station 27, the crane tracks extend against the strip rolling direction beyond the last driver station 23a seen in the direction against the strip running direction.

On the manipulator 29 is a device for

Surface inspection 31a and a device for polishing the driving rollers and / or Stützreibrollen 31b attached.

In addition to this are

a

Apparatus for surface testing of the driving rollers and / or supporting friction rollers 32a,

and a

Apparatus for polishing the driving rollers and / or

Support friction rollers 32b

present between the driver stations 23a, 23b, 23c and the driver roller processing station 28 and the

Driver roller storage station 27 are movable.

List of reference numbers

1 driver

2 frames

3 supporting drive roller

4 drive roller

5a, 5b swingarm

6 axis of rotation

7 storage area

8 bars

9a, 9b hydraulic cylinder

10 holding frames

11 rotary axis range

12 operating range

13 extraction frame

14 arm

15 axis

16 arm

17 axis

18 Movable wedge device

19 hydraulic cylinders

20a, 20b Balancing pots

21 crane

22a, 22b crane runway

23a, 23b, 23c driver station

24a, 24b, 24c HaspeiStation

25 longitudinal axis (the

Warmwalzwerksanläge)

26a, 26b, 26c inlet guides

27 Driver Roll Storage Station 28 Driver Roll Preparation Station 29 Manipulator

30a, 30b crane runways

31a device for

surface testing

31b Device for polishing the

Driving rollers and / or

Supporting driving rollers Device for

surface testing

Apparatus for polishing the driving rollers and / or

Supporting driving rollers

Claims

claims

1. hot rolling mill, comprising arranged successively along a longitudinal axis of the hot rolling mill - several hot rolling stations,

at least one driver station,

at least one coiler station,

characterized in that

next to driver station and / or coiler station,

preferably viewed from the hot rolling stations in the direction of the coiling station, beyond the coiling station, on the extension of the longitudinal axis of the hot rolling mill,

at least one driver roller storage station and at least one driver roller processing station are present, and that at least one at least between

2. hot rolling mill according to claim 1, characterized

in that the manipulator is a crane running on at least above and / or next to the driver station, reel station, capstan roller conditioning system and capstan changing station, possibly also over the hot rolling stations, running craneways.

3. Hot rolling plant according to claim 1 or 2, characterized in that attached to the manipulator, a device for surface inspection and / or a device for polishing the driving rollers and / or supporting friction rollers.

4. Hot rolling plant according to one of claims 1 to 3, characterized in that in addition to the manipulator one between the driver station and the

Driver roller recycling station and the

Driver roll storage station mobile

Apparatus for surface testing of the driving rollers and / or supporting rollers, and or

Apparatus for polishing the driving rollers and / or

Supporting driving rollers

is available.

5. Method for, preferably automatic, change from

Drive rollers and / or support rollers in one

Hot rolling mill according to one of claims 1 to 4, characterized in that

Supporting driving rollers

by a first driver station containing them

by opening a

fixing the drive rollers and / or support drive rollers to be replaced

fixing mechanism

taken from the first driver station

Driving rollers and / or Stützreibrollen holding

first manipulator

to a first driver roll storage station and / or a first driver roll preparation station, d) dropping the

held by the first manipulator, from the first

Driver station taken,

Driving rollers and / or support rollers

in the first driver roll storage station and / or the first driver roll preparation station, e) removal of drive rollers and / or support drive rollers to be used in the first driver station

out

Manipulator for the first driver station, g) Insertion of the drive rollers and / or Stützreibrollen located after step f) at the first driver station in the first driver station by means of the first and / or second manipulator.

6. The method according to claim 5, characterized in that in the first and / or second

be removed, then

and / or the second driver roller storage station, and then

the removed drive rollers and / or Stützreibrollen by means of the first and / or second manipulator in the first and / or the second driver roll storage station.