JP2014522727A - Drive roll change equipment for rolling equipment drivers - Google Patents

Abstract

  The present invention relates to an apparatus and a method for exchanging a drive roll of a driver of a rolling equipment. Next to the driver station (23) and / or the winding station (24) of the hot rolling equipment, preferably in the direction from the hot rolling station to the winding station, beyond the winding station, There are at least one drive roll storage station (27) and at least one drive roll preparation station (28) on an extension of the longitudinal axis of the hot rolling facility. There is at least one manipulator (29) which is movable between at least the driver station, the drive roll preparation station, the drive roll storage station and possibly the hot rolling station.

Description

  The present invention relates to an apparatus and a method for exchanging a drive roll of a driver of a rolling equipment.

Within a drive, also called a driver, the metal strip is clamped, moved or redirected between a pair of rolls. The driver is typically used in a rolling line of a rolling facility such as a hot rolling facility, where the driver is located upstream of a rolling strip winder at the winding station, thereby winding it. Prior to removal, the tension of the strip is adjusted using two rolls: a drive roll and a support drive roll (Stuetztreibrolle).
The steering driver (Lenktreiber) has the additional problem of preventing the rolling strip from moving laterally before winding. To that end, for example, the pivotable drive roll is oriented so that the rolling strip obtains the desired strip tension and the desired lateral movement, depending on the position of the drive roll relative to the support drive roll, and a fixed support drive. Adjusted for roll.

Such a steering driver is known from Patent Document 1 or Patent Document 2, for example.
Patent Document 1 shows a steering driver in which a rotatable drive roll is disposed between two rocker arms supported by both ends of a drive roll shaft. Both rocker arms are rigidly connected with a frame torsion spring which forms the axis of rotation for the rocker arm.
Patent Document 2 discloses a similar steering driver, but in the case of the steering driver, the rocker arms can pivot on the rotation axis of the frame independently of each other.

  The steering driver drive roll and support drive roll must be periodically cleaned and polished. This is because the surfaces of the drive roll and the support roll are inhomogeneous, for example by carbon caking, by dirt particles present on the rolled strip, or by defects in the surface of the rolled up strip that occur during tapping (Anstich). Because the surface of the rolled up strip can still be damaged.

  In Patent Document 1 or Patent Document 2, the drive roll shaft is supported by the bearing area of the rocker arm, and the drive rolls are respectively positioned below the rocker arm. The bearings of the drive roll are adjusted so as to have no play, for example by a spring balance, in order to avoid damage due to impact during tapping.

  It is impossible to take out the drive roll upward. This is because the rocker arm becomes an obstacle to such removal, and the upward path is blocked. For taking out downward, right or left in the operating state, the path is interrupted by the support drive roll and the frame. Therefore, the blocked path must first be opened before it can be removed.

  In order to enable cleaning and polishing of the drive roll and the support drive roll, a pair of rocker arms that support the drive roll typically pivot to an intermediate position using a rocker arm cylinder. This is also necessary to change the drive roll. The intermediate position often reaches about 180 ° after the pair of rocker arms have pivoted. Thereafter, the drive roll and the support drive roll are manually cleaned and ground or polished in the attached state. In-facility cleaning and grinding or polishing creates safety risks. This is because the person in charge must enter between the parts of the equipment that must be reliably stopped and shut off inside the equipment. Furthermore, safety hazards are also caused by the time pressure when performing these operations. This is because cleaning and grinding or polishing must be performed within 10 to 15 minutes required for changing the work roll of the stand. If cleaning, grinding and polishing do not form a sufficiently homogeneous surface on the drive roll or support drive roll, or if it is damaged, remove the drive roll or support drive roll from the frame after pivoting the rocker arm, It must be replaced with a new drive roll or support drive roll. In the case of the steering driver described in Patent Document 1 or Patent Document 2, the assembly of the entire rocker arm including the drive roll must be disassembled. Due to the large number of connecting elements that have to be released and the weight of the frame containing the drive roll, the maintenance of the drive roll and the support drive roll requires significant time. In addition, when the drive roll is disposed between the rocker arms, it is difficult to approach the drive roll for maintenance work.

According to the internal prior art, there are known drivers that overcome the drawbacks of the prior art, have less safety risks when changing drive rolls and require less time to work than conventional drivers and methods. Such a driver for a steel strip winding facility is supported on at least one support drive roll supported on the frame and at least one rocker arm connected to the frame, adjustable with respect to the support drive roll. At least one drive roll, the drive roll being attached to the bearing area of the rocker arm, which inserts the drive roll laterally and / or upward when setting the rocker arm in the operating position Alternatively, it is open for removal and the driver has a fixing mechanism for fixing the drive roll to the bearing area.
It is understood that the bearing area is an area of the rocker arm, in which the drive roll is attached to the rocker arm.

  The bearing area is open for inserting or removing the drive roll laterally and / or upward when the rocker arm is set in the operating position, so that the bearing area is removed when removing the drive roll laterally and / or upward. It does not become an obstacle. Thus, the drive roll can be removed from the rocker arm laterally and / or upward as needed without having to move the rocker arm away from the operating position with the drive roll, or without completely disassembling the rocker arm with the drive roll. . The operating position is understood to be the position occupied by the rocker arm in the normal operation of the driver.

The driver has a fixing mechanism for fixing the drive roll to the bearing area. Thereby, it is ensured that during operation the drive roll does not come off sideways and / or upwards in an undesirable way. In a fixed state, the drive roll can be controlled and slid to various operating positions.
Preferably, the positioning of the drive roll relative to the support drive roll in the fixed state can be changed by changing the adjustment of the fixing mechanism to various positions.

  According to one embodiment, the locking mechanism preferably has a slidable bar that can be locked with a rocker arm.

  According to another embodiment, the fixing mechanism has a flap device (Klappvorrichtung), which can be pivoted around at least one axis fixed to the rocker arm and fixed to the rocker arm. . For example, two ineinanderklappbar arms that are closed by a movable wedge may be used. At this time, each arm is pivoting about a different axis.

  The support drive roll is located below the drive roll. Therefore, it is impossible to take out the supporting drive roll upward as long as the drive roll is attached to the driver. When the drive roll is taken out, the path for taking the support drive roll upward is open.

  When the drive roll is supported between a pair of rocker arms, the distance between the rocker arms is preferably greater than the length of the support drive roll. Thereby it is ensured that the support drive roll can be taken up through the free space created by the take-off of the drive roll.

  If the distance between the rocker arms in the operating position is less than the length of the support drive roll, at least one of these rocker arms can slide or pivot relative to the other rocker arm when the drive roll is removed. It is preferable. In this way, the support drive roll can be taken out.

  Preferably, the steel strip winding equipment is a steel strip winding equipment for hot rolling strips.

  Preferably, the driver is a steering driver.

  According to a preferred embodiment, the drive roll and the support drive roll are arranged in a holding device.

  The holding device may be a holding frame, for example, and includes a driving roll and a supporting driving roll.

  Thereby, in order to remove or insert the pair of drive roll and support drive roll, it is only necessary to touch the holding device and remove them from the driver.

  Since it is not necessary to remove the drive roll and the support drive roll individually or insert them individually into the driver, removal and insertion can be performed faster.

  The support drive roll can be fixedly or slidably supported on the frame.

  According to an embodiment, the drive roll shaft and / or the support drive roll shaft about which the drive roll or the support drive roll rotates is composed of at least two drive roll shaft portions and / or support drive roll shaft portions. , At least one of these drive roll shaft parts is provided on the cylinder body of the drive roll or the support drive roll, for example a perforated disk with a slidable drive pin (Mitnahmebolzen), or a meshing clutch (Klauenkupplung) It is configured as a shaft stub (Wellenstummel) which is releasably fixed by. At this time, the shaft stub may be configured as a hollow shaft, and a shaft driven by a motor may be inserted into the hollow shaft in order to drive the drive roll or the support drive roll. This makes it possible to quickly remove the drive roll and / or the support drive roll from the driver, reducing the safety hazard caused by the temporal pressure when replacing the drive roll.

  According to one embodiment of the driver, the support drive roll can be removed from the driver laterally in its longitudinal direction. The support drive roll can also be inserted into the driver from the side in the direction of its longitudinal axis.

In the driver disclosed in Patent Document 1 or Patent Document 2, one end portion of the rocker arm is capable of turning around a rotation shaft, and the other end portion of the rocker arm is, for example, a pressure medium cylinder (Druckmittelzylinder), preferably hydraulic pressure It is connected to an actuator such as a cylinder. By adjusting the position of the actuator, for example, to allow removal of the drive roll, or to open or close the loop distance between the drive roll and the support drive roll, It is possible to swivel around the rotation axis.
The bearing area of the drive roll is located between the pivotable end and the end connected to the rocker arm actuator.

Even in the case of a driver according to the internal prior art, the rocker arm can pivot about a rotation axis arranged in the rotation axis region of the rocker arm, and the rocker arm is connected to the actuating device in the operation region. At this time, the bearing region of the drive roll may be located between the rotating shaft region and the operation region as in Patent Literature 1 or Patent Literature 2.
According to another embodiment, the rotary shaft region may be located between the bearing region and the working region. The advantage of such an embodiment is that when pressurizing the drive roll, the force flows better to the rocker arm, creating a more advantageous tension state for the rocker arm. In the case of such a configuration, the action interval (Wirkabstand) of the actuating device that contacts the end of the rocker arm is more easily expanded structurally than the embodiments described in Patent Document 1 or Patent Document 2. By increasing the working interval, the same force can be obtained with a smaller actuator or a greater force with the same actuator.

A further internal prior art is a method for removing a drive roll from an internal prior art driver.
The method is
-Releasing the fixing mechanism;
-Removing the drive roll laterally and / or upwardly from the driver;
It is characterized by having.

  Opening of the fixing mechanism is understood as releasing the fixing of the drive roll in the bearing area.

  Since the support drive roll in the driver is fixed in the driver by the fixing device, it does not change its position in normal operation or change its position beyond an acceptable range. At this time, the support drive roll can be fixed so that any kind of movement is impossible. Further, the support driving roll can be slid within an allowable range or a desirable range. Which range of slides is acceptable or desirable depends on the respective operating conditions. In order to change the direction change force of the driver according to the thickness and quality of the strip, for example, the distance between the shafts of the drive roll and the support drive roll can be changed within a desired range.

One embodiment of the internal prior art method additionally comprises that after the drive roll is removed,
-Releasing the fixing device for fixing the supporting drive roll in the driver;
-Removing the support drive roll upward from the driver;
It is characterized by having.

  It is also possible to take out the support drive roll from the driver upward through an opening formed when taking out the drive roll.

According to another embodiment, the support drive roll can be pulled out of the driver from the side for removal, ie in the direction of its longitudinal axis. This may be done before or after removal of the drive roll according to the present invention. Moreover, you may carry out while taking out a drive roll from a driver. In this method, the drive roll and the support drive roll can be taken out faster than when the drive roll and the support drive roll are taken out continuously.
Next, the method according to the internal prior art additionally, during the removal of the drive roll,
-Releasing the fixing device for fixing the supporting drive roll in the driver;
-Removing the support drive roll from the driver by pulling out from the side;
have.

  According to a preferred embodiment, the drive roll and the support drive roll are taken out from the driver as a pair by taking out a holding device in which the pair of drive rolls and the support drive roll are arranged.

  The internal prior art is illustrated in the attached schematic diagram.

FIG. 1a shows a side view of an embodiment of a driver according to the internal prior art.
FIG. 1 b is a diagram of the driver according to FIG.
FIG. 2 is a diagram showing the driver viewed from diagonally above according to FIG. 1b, together with the drive roll and the support drive roll arranged in the holding device.
FIG. 3 is a view showing an embodiment of a driver according to the internal prior art, in which the rotating shaft region 11 is located between the bearing region 7 and the operating region 12.
FIG. 4 is an oblique view of the internal prior art driver together with the extracted support drive roll.
FIG. 5 is a diagram showing an alternative related to a fixing mechanism for fixing the drive roll to the bearing region.
FIG. 6 shows a further embodiment of the driver according to the internal prior art, in which the rotary shaft region 11 is located between the bearing region 7 and the working region 12.

  FIG. 1a is a side view of a driver 1 for a steel strip winding facility, in particular a steering driver for a hot-rolled strip winding facility, according to the internal prior art. The driver 1 includes a support drive roll 3 supported by the frame 2 and a drive roll 4 that can contact the support drive roll. In FIG. 1, the drive roll 4 and the support drive roll 3 are simply indicated by dotted lines. This is because they are hidden by the frame 2 and other members of the driver in the side view. The drive roll 4 is supported by a pair of rocker arms 5a and 5b connected to the frame. In the side view of FIG. 1, only the rocker arm 5a is visually recognized, and the second rocker arm 5b of the pair is hidden by the rocker arm 5a. The pair of rocker arms 5a and 5b exists in the operating position. The pair of rocker arms 5 a and 5 b can turn around the rotation axis 6 of the frame 2. The drive roll 4 is attached to the bearing area 7 of the rocker arm. The bearing area 7 is open when the rocker arm is in the operating position in order to insert the drive roll 4 or to remove it laterally upward. The bearing area is indicated by wavy lines. There is a fixing mechanism for fixing the drive roll 4 to the bearing region 7, and the fixing mechanism is configured as a slidable bar 8. The bar 8 has not yet been slid to its final position in the position shown. In the final position, the bar secures the drive roll 4 to the bearing area 7. For clarity of illustration, a portion of the rocker arm 5 is shown in cross section, so that the path of the bar 8 within the rocker arm 5 is partially shown. When the bar 8 moves from the illustrated position to its final position, as can be seen in the next FIG. 1b, the drive roll 4 is fixed while the bearing of the drive roll 4 has no play. Balance pots (Ausbalancierungstoepfe) 20a, 20b are arranged to be placed in

  FIG. 1 b is a diagram of the driver 1 according to FIG. The same members as in FIG. Unlike FIG. 1a, the bar 8 of the fixing mechanism is shown in its final position, at which the bar fixes the drive roll to the bearing area 7 of the rocker arms 5a, 5b. The drive roll 4 and the support drive roll 3 are easier to see than FIG. The second rocker arm 5b of the pair of rocker arms 5a and 5b is visible, unlike FIG. 1a.

In both FIG. 1a and FIG. 1b, the end portions of the rocker arms 5a, 5b are connected to operating devices, in particular hydraulic cylinders 9a, 9b. By adjusting the positions of these hydraulic cylinders 9a and 9b, the rocker arms 5a and 5b can turn around the rotation shaft 6, thereby adjusting the distance between the drive roll 4 and the support drive roll 3, for example. The
The bearing area 7 of the drive roll exists between the end of the rocker arms 5a and 5b that can turn around the rotation shaft 6 and the end connected to the hydraulic cylinders 9a and 9b of the actuator.

  FIG. 2 is a further illustration showing the driver according to FIG. The same members as in FIG. 1b have the same reference numerals. Unlike FIG. 1 b, the bar 8 of the fixing mechanism is shown in its starting position, where it does not fix the drive roll 4 to the bearing area 7. The drive roll 4 and the support drive roll 3 are not attached in the driver 1. These are arranged in a holding device, in particular in the holding frame 10. The drive roll 4 and the support drive roll 3 are attached or removed by inserting the holding frame 10 into the frame 2 of the driver 1 or taking it out from the frame.

  FIG. 3 is a side view similar to FIG. 1a of an internal prior art driver. The same members as in FIG. In order to make the drawing easier to see, the drive roll 4 and the support drive roll 3 are not shown. The rotating shaft 6 is disposed in the rotating shaft region 11 of the rocker arm 5a. The hydraulic cylinder 9a is disposed in the operating region 12 of the rocker arm 5a. Unlike FIG. 1 a, the rotating shaft region 11 exists between the bearing region 7 and the operating region 12.

  FIG. 4 is an oblique view of the internal prior art driver as seen in FIG. 1b. The same members as in FIG. 1b have the same reference numerals. Since the drive roll is not inserted in the driver 1, it is not illustrated. The support drive roll 3 is also not inserted. FIG. 4 shows the support drive roll in the removed state. The support drive roll 3 can be taken out from the driver 1 laterally in the longitudinal direction or inserted into the driver 1. FIG. 4 shows a take-out stand. On the take-out stand, the support drive roll 3 is pulled out from the driver 1 or inserted into the driver 1.

  The fixing mechanism for fixing the drive roll 4 to the bearing area 7 does not have to be configured as the slidable bar 8.

  FIG. 5 shows an alternative fastening mechanism, which is a flap device with two pivotable arms 14, 16, which are closed by a movable wedge device 18. have. Each of the arms 14, 16 pivots about a different axis. That is, arm 14 pivots about axis 15 and arm 16 pivots about axis 17. Both arms 14 and 16 are connected to the rocker arm 5 a via shafts 15 and 17. The movable wedge device 18 is fixed to the arm 16 but can be moved by a hydraulic cylinder 19. The arm 14 has a convex portion that fits into the concave portion of the movable wedge device 18. When closing the fixing mechanism, the arms 14 and 16 pivot to the illustrated position, and the hydraulic cylinder 19 moves the movable wedge device 18 so that the recess slides over the projection. Thereby, both arms 14, 16 are closed against each other.

  FIG. 6 is a side view similar to FIGS. 1a and 3 of an internal prior art driver. The same members as in FIG. The rotating shaft 6 is disposed in the rotating shaft region 11 of the rocker arm 5a. The hydraulic cylinder 9a is disposed in the operating region 12 of the rocker arm 5a. Unlike FIG. 1 a, the rotating shaft region 11 exists between the bearing region 7 and the operating region 12 as shown in FIG. 3. 3 and 6 differ in the shape of the rocker arm 5a and the manner in which the drive roll is attached to the bearing area of the rocker arm.

  When using a driver known from US Pat. No. 6,057,086 or US Pat. No. 5,057,099, the drive roll and the support drive roll are individually removed from the driver using an overhead crane (Hallenkran) and the drive roll or support prepared at the factory. Replaced with drive roll. In general, the exchange lasts from 5 hours to 10 hours, so that it takes place only while the rolling equipment is intentionally shut down. In the case of the above-mentioned internal prior art driver, the replacement takes place in 10 to 15 minutes. Therefore, the exchange can be performed while the roll equipment is in operation while the roll is stopped for a short time, or can be performed simultaneously with the work roll exchange. Correspondingly, it is not necessary to polish the surfaces of the drive roll and the support drive roll in a state of being fitted in the driver as in the case of using the driver known from Patent Document 1 or Patent Document 2, and the rolling equipment is stopped. Without polishing, it can be polished outside the driver to obtain perfect surface quality.

  When using a driver according to the above-mentioned internal prior art, when using the rolling equipment designed to use the driver known from Patent Document 1 or Patent Document 2, the replacement of the drive roll or the support drive roll is a rolling process. Depends on the availability of equipment overhead cranes. Furthermore, in most cases, the spare rolls are stored and processed in so-called roll shops that are far away in space, and thus need to go through a long transportation route. This makes it difficult to exchange the drive roll and the support drive roll in response to a change in production demand or a change in demands on the drive roll and the support drive roll.

European Patent No. 747147 Austrian Patent No. 500689

  It is an object of the present invention to make it possible to change drive rolls and supporting drive rolls more flexibly and quickly than in the prior art, and work close to the driver, especially when using internal prior art drivers as described above. It is to provide an apparatus and method.

This task is arranged continuously along the longitudinal axis of the hot rolling equipment,
-Multiple hot rolling stations;
-At least one driver station;
-At least one winding station;
A hot rolling facility having
Next to the driver station and / or the winding station, preferably in the direction from the hot rolling station to the winding station, beyond the winding station, on the extension of the longitudinal axis of the hot rolling equipment, at least 1 There are one drive roll storage station and at least one drive roll preparation station; and
There is at least one manipulator that is movable between at least a driver station, a drive roll preparation station, a drive roll storage station and possibly a hot rolling station;
It is solved by hot rolling equipment characterized by

The drive roll storage station, the drive roll preparation station, and the manipulator are components of the drive roll replacement facility.
If there are several winding stations, these components are preferably arranged beyond the last winding station in the strip running direction.

  If there are a plurality of driver stations and / or a plurality of drive roll storage stations and / or a plurality of drive roll preparation stations, the manipulator may include all these driver stations, a drive roll preparation station, a drive roll storage station, You can move between.

  The fact that a drive roll storage station and a drive roll preparation station are present next to the driver station and / or the winding station means that they are in the immediate vicinity, up to 40 meters, preferably up to 30 meters, particularly preferably. It means that they are arranged at a distance of up to 20 meters, very particularly preferably up to 10 meters. This shortens the transport route and saves time.

  Here, the longitudinal axis of the hot rolling equipment in the strip rolling direction (also referred to as strip running direction) is understood to be the direction from the hot rolling station to the winding station.

  A hot rolling station is understood to be a component of a hot rolling facility in which rolling is performed to produce a hot rolled strip.

  A driver station is understood to be a component of a hot rolling facility in which a driver moves a hot strip. When there are a plurality of drivers, as shown in FIG. 8, the hot rolling facility has a plurality of driver stations.

  A winding station is understood to be a component of a hot rolling facility in which a hot rolled strip is wound up on a reel. When there are a plurality of reels, as shown in FIG. 8, the hot rolling facility has a plurality of winding stations.

  At this time, the driver station is not part of the winding station.

  Here, the driving roll means a roll used at a driver station for driving, that is, a driving roll and a supporting driving roll.

  A manipulator is used to manipulate the components of a hot rolling facility (e.g., the drive roll is removed from the driver station, drive roll preparation station, drive roll storage station, and / or the drive roll is removed from the driver station, drive roll, etc.) It is understood that it is a device (for example a crane or a robot) that inserts into a preparation station, a drive roll storage station.

  At the drive roll preparation station, the drive roll is ground and / or polished, for example, or the drive roll is assembled or disassembled. The drive roll thus prepared can later be loaded into a drive roll storage station. In the drive roll storage station, there are possibly unused drive rolls that have not been prepared.

With the arrangement of the drive roll storage station and the drive roll preparation station and the installation of the manipulator according to the present invention, the transportation path when exchanging the drive rolls can be shortened, and the dependence on the availability of the overhead crane can be avoided. In order to obtain the maximum benefit with respect to the transport route, the components of the drive roll changer are located as close as possible to the driver station. In order to obtain the maximum benefit with respect to the transport path, the drive roll storage station and the drive roll preparation station are located as close as possible to each other.
Therefore, it is preferable that the drive roll storage station, the drive roll preparation station, and the manipulator are arranged in the rolling hole of the hot rolling facility.

  According to a preferred embodiment of the invention, the manipulator runs at least above and / or next to the driver station, the winding station, the drive roll preparation station and the drive roll exchange station, and possibly also above the hot rolling station. A crane that runs on a crane rail.

  Preferably there is one manipulator. This limits construction costs. However, there may be a plurality of manipulators, for example 2, 3, 4 or more manipulators.

  According to a preferred embodiment of the invention, the manipulator is equipped with a surface inspection device and / or a drive roll and / or a support drive roll polishing device. Here, inspection and polishing can be performed while the drive roll is inserted into the driver station or after the drive roll is removed from the driver station.

  According to another preferred embodiment of the invention, in addition to the manipulator, the surface of the drive roll and / or the support drive roll, which is movable between the driver station, the drive roll preparation station and the drive roll storage station, is inspected. There are devices for polishing and / or devices for polishing drive rolls and / or support drive rolls. Inspection and polishing can be performed while the drive roll is inserted into the driver station or after the drive roll is removed from the driver station.

  In both of these embodiments, there is an apparatus for inspecting the surface of the drive roll and / or the support drive roll and / or an apparatus for polishing the drive roll and / or the support drive roll with a movable manipulator. Can be easily transported to the drive roll.

A further object of the present invention is a method for preferably automatically replacing the drive roll and / or the support drive roll in the hot rolling facility according to the present invention, the method comprising:
a) Fixing of the first driver station fixing the drive roll and / or the supporting drive roll to be replaced through the first driver station containing them. Releasing by opening the mechanism;
b) removing the drive roll to be replaced and / or the support drive roll from the first driver station sideways and / or up with the first manipulator;
c) moving the first manipulator gripping the drive roll and / or the support drive roll removed from the first driver station to the first drive roll storage station and / or the first drive roll preparation station; ,
d) placing the drive roll and / or the support drive roll taken from the first driver station gripped by the first manipulator at the first drive roll storage station and / or the first drive roll preparation station; When,
e) a drive roll and / or a support drive roll to be inserted into the first driver station, using the first manipulator and / or the second manipulator, the first drive roll storage station and / or the first Removing from the drive roll preparation station or from the second drive roll storage station and / or the second drive roll preparation station;
f) after step e), moving the first and / or second manipulator holding the drive roll and / or the support drive roll to the first driver station;
g) After step f), the drive roll and / or the support drive roll in contact with the first driver station are inserted into the first driver station using the first manipulator and / or the second manipulator. And steps to
It is characterized by having.

  These steps may be performed in alphabetical order or in other order. For example, after a drive roll is removed from a driver using a manipulator, the removed drive roll is moved by the manipulator to a drive roll storage station and / or a drive roll preparation station, and the manipulator The drive roll gripped by may be inserted into the driver. Correspondingly, before these drive rolls are inserted into the driver, steps corresponding to the removal of the drive roll to be inserted into the driver from the drive roll storage station and / or drive roll preparation station are performed. Become.

  Basically, the method attempts to select the order of steps so that the transport route is the shortest.

  In an embodiment of the method according to the invention, the drive roll and / or the support drive roll prepared at the first and / or second drive roll preparation station use the first and / or second manipulator, After being removed from the first or second drive roll preparation station, the first and / or second manipulators gripping the removed drive roll and / or the support drive roll are the first and / or second drive Move to the roll storage station, then the removed drive roll and / or support drive roll is inserted into the first and / or second drive roll storage station using the first and / or second manipulator Is done.

  That is, the prepared drive rolls and / or support drive rolls are stored in the drive roll storage station after preparation and before being inserted back into the driver.

  It will be appreciated that the prepared drive roll and / or the support drive roll may be inserted into the driver directly after preparation, i.e. without first being placed on the drive roll storage station. This has already been shown in the order of steps e) to g) described above.

Preferably, the method is performed automatically. Here, “automatic” means that after the operator starts the method from the control panel of the hot rolling facility, the method proceeds without further interaction with the operator. At this time, the operator may be a human or a computer system.
The start of the method is triggered, for example, by one of the following cases occurring: That is,
-If an overload (Aufpackung) or surface damage of the drive roll is confirmed by a detection device that scans the surface, for example to detect surface defects,
-If the drive roll is damaged,
-If the bearing or material is damaged,
-If the desired product changes as a result of a change in the desired product, such as rolling strips, where it is desired to use other types of drive rolls.

  The method according to the present invention may be performed semi-automatically. That is, compared to a method that proceeds automatically, at least one step is additionally controlled by a human operator to start the method. For example, a method using a crane is performed by a human operator operating a crane control device hanging from the crane.

  According to the present invention, in order to obtain the highest quality product, the driving roll optimized for the product can be quickly inserted into the driver without stopping the rolling equipment. Thereby, the wear of the drive roll can be optimally controlled. For example, when manufacturing a strip, it is possible to use the drive roll provided specifically for this purpose, while taking care of the drive roll used for other purposes.

  The manipulator according to the present invention may be used in different ways. For example, for maintenance or replacement of the components of the rolling equipment that have entered the working area of the manipulator, such as the wear plate of the inlet guide, for the surface inspection of the roller table roller and the wear thin plate.

It is the figure which showed the side surface of one Embodiment of the driver which concerns on an internal prior art. It is the figure which looked at the driver concerning FIG. 1a from diagonally upward. FIG. 2 is a diagram showing the driver viewed from diagonally above according to FIG. 1b together with a drive roll and a support drive roll arranged in the holding device. FIG. 3 is a diagram showing an embodiment of a driver according to an internal prior art, in which a rotation shaft region 11 is located between a bearing region 7 and an operation region 12. It is the figure which looked at the driver which concerns on an internal prior art from diagonally upward with the taken out support drive roll. It is the figure which showed the alternative regarding the fixing mechanism for fixing a drive roll to a bearing area | region. FIG. 4 is a view showing a further embodiment of the driver according to the internal prior art, in which the rotating shaft region 11 is located between the bearing region 7 and the working region 12. FIG. 3 is a diagram similar to FIG. 2 showing how a manipulator configured as a crane is arranged above the driver according to the present invention. It is the figure which showed arrangement | positioning of the hot rolling station, the driver station, and the winding station in the hot rolling equipment which concerns on this invention.

  In FIG. 7, a manipulator configured as a crane 21 is disposed above the driver 1. The crane 21 that runs on the crane rails 22a and 22b that runs above the driver station, the winding station, the drive roll preparation station, and the drive roll exchange station includes a driver station that includes the driver 1 and a drive roll preparation that is not shown. Movable between the station and the drive roll storage station.

FIG. 8 is a drawing of a rolling rolling facility of a hot rolling facility according to the present invention, in which a plurality of driver stations 23a, 23b, 23c and a plurality of winding stations 24a, 24b, 24c are longitudinal axes of the hot rolling facility. 25 shows how they are arranged in the strip rolling direction. The inlet guides 26a, 26b, 26c for the driver stations 23a, 23b, 23c are likewise illustrated. In order to make the drawing easier to see, the hot rolling station of the hot rolling facility is not shown, but is arranged on the left side of the inlet introducing portion 26a.
A drive roll storage station 27 and a drive roll preparation station 28 exist on the extended line of the longitudinal axis 25 of the hot rolling facility beyond the final winding station 24c when viewed in the strip rolling direction. There is also a manipulator 29 configured as a crane that can move between the driver stations 23a, 23b, 23c, the drive roll preparation station 28 and the drive roll storage station 27, as shown by the double arrows. Also shown are crane rails 30a, 30b over which the crane can move. The manipulator 29 can also move between a hot rolling station (not shown), a drive roll preparation station 28 and a drive roll storage station 27, so that the crane rail is in the strip travel direction as opposed to the strip rolling direction. It extends beyond the last driver station 23a when viewed in the opposite direction.
A device 31a for inspecting the surface and a device 31b for polishing the drive roll and / or the support drive roll are attached to the manipulator 29.
In addition, there is a device 32a for inspecting the surface of the drive roll and / or the support drive roll, and a device 32b for polishing the drive roll and / or the support drive roll, these devices are: It is possible to move between the driver stations 23a, 23b, 23c, the drive roll preparation station 28 and the drive roll storage station 27.

DESCRIPTION OF SYMBOLS 1 Driver 2 Frame 3 Support drive roll 4 Drive roll 5a, 5b Rocker arm 6 Rotating shaft 7 Bearing area 8 Bar 9a, 9b Hydraulic cylinder 10 Holding frame 11 Rotating shaft area 12 Actuation area 13 Pickup stand 14 Arm 15 Axis 16 Arm 17 Axis 18 Movable wedge device 19 Hydraulic cylinder 20a, 20b Balance pot 21 Crane 22a, 22b Crane rail 23a, 23b, 23c Driver station 24a, 24b, 24c Winding station 25 Long axis (for hot rolling equipment)
26a, 26b, 26c Inlet guide 27 Drive roll storage station 28 Drive roll preparation station 29 Manipulator 30a, 30b Crane rail 31a Apparatus for inspecting the surface 31b Apparatus for polishing the drive roll and / or the support drive roll 32a Surface 32b Apparatus for polishing the drive roll and / or the support drive roll

Claims (6)

Arranged continuously along the longitudinal axis of the hot rolling equipment,
-Multiple hot rolling stations;
-At least one driver station;
-At least one winding station;
In a hot rolling facility having
Next to the driver station and / or the winding station, preferably from the hot rolling station to the winding station, beyond the winding station, the longitudinal axis of the hot rolling equipment. The presence of at least one drive roll storage station and at least one drive roll preparation station on the extension; and
There is at least one manipulator that is movable between at least the driver station, the drive roll preparation station, the drive roll storage station, and possibly the hot rolling station;
Hot rolling equipment characterized by   The manipulator is at least above and / or next to the driver station, the winding station, the drive roll preparation station, and the drive roll exchange station, and possibly on a crane rail that also runs above the hot rolling station. The hot rolling facility according to claim 1, wherein the hot rolling facility is a traveling crane.   The manipulator is equipped with a device for inspecting the surface of the drive roll and / or the support drive roll and / or a device for polishing the drive roll and / or the support drive roll. The hot rolling facility according to claim 1 or 2.   In addition to the manipulator, an apparatus for inspecting the surface of the drive roll and / or the support drive roll, movable between the driver station, the drive roll preparation station and the drive roll storage station, and / or Or the apparatus for grind | polishing the said drive roll and / or the said support drive roll exists, The hot rolling equipment as described in any one of Claim 1 to 3 characterized by the above-mentioned. In the method for preferably automatically replacing the drive roll and / or the support drive roll in the hot rolling facility according to any one of claims 1 to 4,
The method
a) The drive roll to be replaced and / or the support drive roll is fixed through the first driver station including the drive roll and / or the support drive roll to be replaced. Releasing by opening the fixing mechanism of the driver station of
b) removing the drive roll to be replaced and / or the support drive roll from the first driver station sideways and / or up with a first manipulator;
c) the first manipulator gripping the drive roll and / or the support drive roll taken out from the first driver station to the first drive roll storage station and / or the first drive roll preparation station A moving step;
d) The drive roll and / or the support drive roll taken from the first driver station, gripped by the first manipulator, to the first drive roll storage station and / or the first drive. Placing it on the roll preparation station;
e) using the first manipulator and / or the second manipulator as the drive roll and / or the support drive roll to be inserted into the first driver station, the first drive roll storage station and Removing from the first drive roll preparation station or from the second drive roll storage station and / or the second drive roll preparation station;
f) after step e), moving the first and / or second manipulator holding the drive roll and / or the support drive roll to the first driver station;
g) After step f), the drive roll and / or the support drive roll in contact with the first driver station is moved to the first manipulator and / or the second manipulator using the first manipulator. Inserting into the driver station of
A method characterized by comprising:   The drive roll and / or the support drive roll prepared at the first and / or second drive roll preparation station uses the first and / or second manipulator to provide the first or second drive roll. After being removed from the preparation station, the first and / or second manipulators gripping the removed drive roll and / or support drive roll move to the first and / or second drive roll storage station The removed drive roll and / or support drive roll is then inserted into the first and / or second drive roll storage station using the first and / or second manipulator. 6. The method of claim 5, wherein:

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