EP3590616A1 - Method and device for changing millers on a milling frame - Google Patents
Method and device for changing millers on a milling frame Download PDFInfo
- Publication number
- EP3590616A1 EP3590616A1 EP19183123.9A EP19183123A EP3590616A1 EP 3590616 A1 EP3590616 A1 EP 3590616A1 EP 19183123 A EP19183123 A EP 19183123A EP 3590616 A1 EP3590616 A1 EP 3590616A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- chair
- roll stand
- roll
- changing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000003801 milling Methods 0.000 title 1
- 230000008859 change Effects 0.000 claims abstract description 43
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims description 30
- 230000003993 interaction Effects 0.000 claims description 3
- 230000003137 locomotive effect Effects 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
- B21B31/103—Manipulators or carriages therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/025—Quarto, four-high stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
- B21B2203/32—Roll changing stools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
- B21B31/106—Vertical displacement of rolls or roll chocks during horizontal roll changing
Definitions
- the invention relates to a method for changing support rolls on a roll stand according to the preamble of claim 1, and a corresponding device according to the preamble of claim 9.
- a so-called roll changing chair can be used for changing support rolls in a roll stand, which is evident, for example WO 2003/015949 A1 is known.
- the process here is complex: after the work rolls have been moved out of the roll stand, they have to be removed from the stand area, and a displacement device onto which the work rolls have been extended must also be removed.
- the lower support roller is then moved out of the roll stand transversely to the rolling direction, the roller changing chair then being placed on the lower support roller from above. Thereafter, the lower support roller in connection with the roller change chair placed thereon is moved back into the roll stand, the upper support roller then being lowered and correspondingly placed on the roller change chair.
- the lower back-up roll and the upper back-up roll lowered or attached to it with the help of the roll changing chair are then moved out of the roll stand together again.
- the upper support roller can be lifted with an indoor crane and a new support roller can be placed on the Roller changing chair can be put on.
- the new back-up roller can then be retracted into the stand area in connection with the roller mill and the lower back-up roller.
- the object of the invention is to simplify the replacement of support rolls in a roll stand by being able to be carried out in a shorter time and thus at a lower cost.
- the method according to the present invention is used to change support rolls on a roll stand.
- a roll changing chair is introduced into the roll stand transversely to the rolling direction, with the roll changing chair having a lower part thereof Chocks of the lower support roller supported and the upper support roller can be lowered onto the roller changing chair.
- the roll change chair is moved into the roll stand via the extension rails provided for the work rolls of the roll stand, and after the upper support roll has been lowered onto the roll change chair, either only the upper support roll or a unit made up of the lower and upper support roll are moved out of the roll stand will become.
- a device serves the same purpose, namely for changing support rolls on a roll stand.
- the upper support roll is guided in liftable or lowerable chocks on a stand frame of the roll stand.
- the device according to the invention comprises a roll changer which can be supported on chocks of the lower support roll of the roll stand.
- the roller changing chair preferably has entry aids on both sides thereof with sliding rollers or sliding elements which can be brought into interaction with the extension rails provided for the work rolls of the rolling stand in order to move the roller changing chair into the roll stand transversely to the rolling direction.
- the roller changing chair has a lowering device, by means of which the lower part of the roller changing chair, after the roller changing chair has been introduced into the roll stand, can be supported on the chocks of the lower support roll of the roll stand.
- the invention is based on the essential finding that, after the work rolls have previously been moved out of the roll stand, the roll changing chair is then or can be moved into the roll stand via the extension rails provided for the work rolls.
- These extension rails which are primarily intended for extending the work rolls, are always referred to as such below.
- the roll changing chair is preferably on both sides of it Retractable aids equipped that include casters or sliding elements that can be brought into contact or interact with the extension rails.
- the roll changing chair can thus be moved into the roll stand without it being necessary, as in the conventional procedure described at the outset, to first open the lower support roll from the roll stand.
- the time for replacing the backup rolls can be considerably reduced.
- the roll change chair After the roll change chair has been moved into the roll stand via the extension rails at right angles to the rolling direction, it can be lowered by means of an integrated lowering device within the roll stand in such a way that a lower part of the roll change chair is supported on the chocks of the lower support roll.
- the upper support roller can then be lowered - in a manner known per se - and supported on an upper part of the roller changing chair.
- the roller changing chair forms a unit with its upper and lower part.
- a roller change chair which, as explained, its lower part is supported on the chocks of the lower support roller, it is possible to extend the upper support roller, when it is supported on the upper part of the roller change chair, together with the lower support roller laterally out of the roll stand ,
- the roller changing chair is constructed in two parts, namely in the form of an upper part and a lower part. These two parts of the roller changing chair can be coupled together and - if necessary - decoupled from each other. Sliding elements, sliding surfaces or rails are provided between the upper part and the lower part of the roller changing chair, which - if the two Parts are decoupled from each other - enable a relative displacement between the upper part and the lower part of the roller changing chair.
- the lower part of the roller changing chair can be supported on the chocks of the lower supporting roller by actuating the lowering device mentioned.
- This two-part embodiment of the roller changing chair serves that the upper support roller, when it is lowered onto the upper part of the roller changing chair and supported thereon, then extends out of the roll stand together with the upper part of the roller changing chair and independently of a lower support roller, or vice versa the roll stand can be retracted.
- the upper support roller extends or retracts from or into the roll stand, the lower support roll remains stationary within the roll stand and is not moved. This also leads to a reduced set-up time in relation to changing the upper backup roller.
- the last-mentioned embodiment of the invention essentially serves for removing or changing the upper supporting roller of a roll stand.
- the lower part of the roller changing chair is supported on the chocks of the lower support roller.
- the weight of the roller changing chair and the upper supporting roller lowered on its upper part are then diverted into these chocks and in any case does not bear on the extension rails of the working rollers.
- the feature “load-reduced” means that when the roller changing chair is moved, in particular if the upper supporting roller has been lowered thereon, along the extension rails, the lowering device is relaxed to such an extent that a weight of the roller changing chair that is loaded on the extension rails is does not exceed the weight of the work rolls of the roll stand. Conversely, this means that the lowering device is actuated or relaxed to the extent that the main load of the upper part of the roller changing chair, on which the upper supporting roller is also supported, is absorbed by the sliding elements or sliding surfaces, which are between the upper part and the lower one Part of the roller changing chair are provided, and then is derived via the lower part of the roller changing chair in the chocks of the lower support roller. This prevents overloading and thus possible damage to the extension rails.
- the invention advantageously enables automated changing of either the upper support roller or a unit formed from the lower and upper support rollers.
- This change is preferably largely automated, and can also be fully automated.
- the targeted retraction of the roller change chair into the roll stand on the extension rails and the subsequent support of the roller change chair on the chocks of the lower support roller means that an otherwise complex manual adjustment of the roller change chair on the extended lower support roller is eliminated.
- Such an automatic change of at least one support roller, based on the lateral retraction of the roller change chair via the extension rails leads to a considerable saving in set-up time and, at the same time, to increased safety for the operating personnel.
- a roll stand 11 In the Fig. 1-4 parts of a roll stand 11 are each shown in a simplified side view. It can be seen here that the roll stand 11 has an upper support roller 12.1 and a lower support roller 12.2.
- the upper support roller 12.1 is guided in (not fully shown) raisable or lowerable chocks 18.1 on a stand frame of the roll stand 11.
- the lower support roller 12.2 is arranged or guided on chocks 18.2.
- the device 10 is used to change support rolls 12 on the roll stand 11, and is provided for this from the side, ie transversely to the rolling direction W (cf. Fig. 1 ) to be moved into the roll stand 11.
- the roll stand 11 comprises extension rails 24, via which work rolls can be moved out of the roll stand 11.
- extension rails 24 via which work rolls can be moved out of the roll stand 11.
- the device 10 comprises a roller changing chair 14 which has entry aids 20 on both sides thereof. These insertion aids 20 are equipped with sliding rollers or sliding elements, which are referred to below as lubricants 21 and ensure a relative movement of the insertion aid on or with respect to the extension rail 24. Furthermore, the roller changing chair 14 comprises a lowering device 22 attached to the drive-in aids 20, the function of which will be explained separately below.
- the roller changing chair 14 is formed in two parts, namely in the form of an upper part 15 and a lower part 16. These two parts 15, 16 of the roller changing chair 14 can be coupled to one another and - if necessary - decoupled from one another. Sliding surfaces 17 are provided between the upper part 15 and the lower part 16, which — if the two parts 15, 16 are decoupled from one another — enable the upper part 15 to be displaced relative to the lower part 16. As an alternative to sliding surfaces, it is also possible to provide sliding elements or rails between the two parts 15, 16 of the roller changing chair 14, which in the same way ensure a relative movement of the upper part 15 to the lower part 16 even under great load (for example 60-70 tons).
- the roller changing chair 14 In an initial state, in which the upper part 15 is coupled to the lower part 16, the roller changing chair 14 can be viewed from the side, ie transversely to the rolling direction W (cf. Fig. 1 ) can be moved into the roll stand 11.
- the lubricants 21 of the retracting aids 20 come into contact with the extending rails 24 and thus enable the roller changing chair 14 to be retracted into the roll stand 11
- Fig. 1 shows the roller changing chair 14 in a first operating position after it has been completely moved into the rolling stand 11 via the extension rails 24.
- the roller changing chair 14 is shown in a second operating position.
- the roller changing chair 14 is lowered by actuating the lowering device 22, so that the lower part 16 of the roller changing chair 14 is supported on the chocks 18.2 of the lower support roller 12.2.
- a vertical position of the roller changing chair 14 with respect to the lower support roller 12.2 can be set using the lowering device 22.
- a support pan 23 is provided on an upper side of the upper part 15 of the roll changing chair 14. By lowering the chocks 18.1, which are assigned to the upper support roller 12.1, it is achieved that the chocks 18.1 of the upper support roller 12.1 are deposited in the support pan 23. This is simplified in the representation of Fig. 3 shown.
- the entry aids 20 are at least reduced in terms of the extension rails 24 or even made free of loads.
- the device 10 furthermore comprises a displacement device 26, which is simplified in the side view of FIG Fig. 5.1 or in the top view of Fig. 5.2 is shown.
- This displacement device 26 can - according to its name - be moved transversely to the roll stand 11, which is shown, for example, in Fig. 5.2 is identified by the arrow Q.
- the displacement device 26 is suitable for positioning or "parking" the roller changing chair 14 thereon.
- the surface of the displacement device 26 is dimensioned sufficiently large that the work rolls 13 of the roll stand 11 can also be received thereon.
- Fig. 5.2 is the space that is occupied by the work rolls 13 (when these have been moved out of the roll stand 11), symbolized by dashed lines.
- FIG. 5.1 - 8.1 The side views after the Fig. 5.1 - 8.1 , after the 9 and 10 , and after the Fig. 11.1 illustrate the use of the device 10 according to the invention and a corresponding method according to the invention.
- the Fig. 5.2 - 8.2 , and the Fig. 11.2 each show top views of the roll stand 11, the side views according to the Fig. 5.1 - 8.1 , and Fig.11.1 , each correspond.
- the Fig. 5.1 and Fig. 5.2 show the roll stand 11 in a state in which the work rolls 13 are still inside the roll stand 11.
- the roller changing chair 14 is arranged or “parked” on the displacement device 26.
- the displacement device 26 is arranged adjacent to one side of the roll stand 11, namely in such a way that the available space symbolized by the dashed lines, which is provided for the work rolls 13, has a longitudinal axis L of the roll stand 11 (cf. Fig. 5.2 ) flees.
- Fig. 6.1 and 6.2 show the roll stand 11 in a state after the work rolls 13 have been extended onto the adjoining displacement device 26.
- This extension can take place in that the work rolls 13 are coupled to a straight thrust drive, for example in the form of a locomotive or in particular a hydraulic piston-cylinder drive, with which the work rolls 13 are pulled out of the roll stand 11 via the extension rails 24.
- rails are attached to an upper side of the displacement device 26, on which the roller changing chair 14 can be moved.
- These rails are for example in the Fig. 6.2 . 7.2 . 8.2 and 11.2 provided with the reference symbol “28” which — insofar as they are covered by the roll changing chair 14 or the work rolls 13 — are only shown in broken lines.
- the width of these rails 28 is adapted to the extension rails 24 of the work rolls. Accordingly, it is possible for the roller changing chair 14 to be moved into the roll stand 11 via the rails 28 and for the lubricants 21 provided on the entry aids 20 to come into contact with the exit rails 24.
- Rails 29, the “track width” of which is smaller than that of the rails 28, are also provided on the upper side of the displacement device 26. The function of these rails 29 is explained separately below.
- the Fig. 7.1 and 7.2 show the displacement device 26 in a position in which it is compared to the Fig. 5.2 has been shifted in the direction Q such that the position in which the roller changing chair 14 is arranged on the shifting device 26 is now aligned with the longitudinal axis L of the roll stand.
- the Fig. 8.1 and 8.2 illustrates the roller changing chair 14 on the in
- the rolling rails 11 provided extension rails 24 and the rails 28 arranged on the top of the displacement device 26 can be moved into the rolling stand 11.
- the roller changing chair 14 can be coupled to a straight-line thrust drive, which exerts a sufficient pushing force on the roller changing chair 14 in the direction of the roll stand 11.
- the guidance of the roller change chair 14 on the rails 28 facilitates its movement in the direction of the roll stand 11.
- the straight-line thrust drive (for example, a locomotive or in particular hydraulic piston-cylinder drive) with which the roller change chair 14 is coupled can be the same straight-line thrust drive which has previously been used for pulling out the work rolls 13.
- the embodiment of the roller changing chair 14 according to FIGS Fig. 1-3 is formed in two parts, namely in the form of the upper part 15 and the lower part 16.
- the backup roller 12.1 which in the representations of Fig. 3 and Fig. 10 is shown
- the upper part 15 of the roller changing chair 14 is decoupled from the lower part 16 thereof, and then the upper part 15 together with the lower supporting roller 12.1 lowered thereon is laterally extended out of the roll stand 11, for example with the aid of the linear thrust drive already mentioned above, which is coupled to the upper part 15.
- the upper part 15 of the roll changing chair 14 moves on the sliding elements 17 relative to the lower part 16 thereof, which remains stationary within the roll stand 11.
- the upper part 15 of the roller changing chair 14 then reaches the rails 29, which - as already explained above - are also attached to the top of the displacement device 26.
- the Fig. 11.1 and 11.2 show the upper part 15 of the roll changing chair 14 when it has been moved out or moved together with the upper support roll 12.1 out of the roll stand 11 on the displacement device 26.
- the displacement device 26 can be provided on its upper side with a platform 30 which is vertically adjustable in height. This height adjustment is for example in the Fig. 5.1 symbolized by the arrow H, and enables adaptation to a possibly different height level between the sliding elements 17 and the rails 29 of the displacement device 26.
- FIG Fig. 4 Another embodiment of the device 10 according to the invention is shown in FIG Fig. 4 shown.
- the upper part 15 of the roller changing chair 14 either fixedly connected to the lower part 16 thereof, or the two parts 15 and 16 are formed in one piece - and thus as a common component.
- This embodiment of the device 10 is suitable for the fact that, after the upper support roller 12.1 has been lowered onto the support pan 23 provided on the upper part 15 of the roller changing chair 14, then the roller changing chair 14 together with the upper supporting roller 12.1 and the lower supporting roller 12.2 - as Unit - can be moved out of the roll stand 11.
- the two-part embodiment of the roll changing chair 14 - in the same way as the embodiment of FIG Fig. 4 - Is suitable to move the upper support roller 12.1 together with the lower support roller 12.2 - as a unit - out of the roll stand 11. It should then be noted here that the coupling between the upper part 15 and the lower part 16 of the roller changing chair 14 is maintained, so that the upper and lower parts 15, 16, after the upper support roller 12.1 has been lowered onto the support pan 23, together are moved together. This means that the sliding elements 17 then remain inoperative.
- a further reduction in the set-up time is ensured by the fact that the abovementioned processes - in both directions (that is, the roller changing chair 14 moves into the roll stand 11 via the extension rails 24, and then extends at least one support roller 12 in connection with at least the upper part 15 of the Roller change chair 14; or vice versa: insertion of new or "fresh" support rollers 12 into the roll stand 11 in connection with the roll change chair 14 or its upper part 15, and subsequent extension of the roll change chair 14 from the roll stand 11 via the extension rails 24) - in particular, are carried out fully automatically, and can thus be controlled from a control station (not shown) of a plant, to which the roll stand 11 belongs.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Die Erfindung betrifft ein eine Vorrichtung (10) und ein Verfahren zum Wechseln von Stützwalzen (12) an einem Walzgerüst (11). Hierbei wird nach einem Ausfahren der Arbeitswalzen ein Walzenwechselstuhl (14) quer zur Walzrichtung (W) in das Walzgerüst (11) eingebracht, wobei der Walzenwechselstuhl (14) mit einem unteren Teil (16) davon auf Einbaustücke (18.2) der unteren Stützwalze (12.2) aufstützbar und die obere Stützwalze (12.1) auf den Walzenwechselstuhl (14) absenkbar ist. Der Walzenwechselstuhl (14) wird in das Walzgerüst (11) über die für die Arbeitswalzen des Walzgerüstes (11) vorgesehenen Ausfahrschienen (24) eingefahren, wobei, nachdem die obere Stützwalze (12.1) auf den Walzenwechselstuhl (14) abgesenkt worden ist, dann entweder nur die obere Stützwalze (12.1) oder eine Einheit gebildet aus der unteren und oberen Stützwalze (12.1, 12.2) aus dem Walzgerüst (11) ausgefahren wird/werden.The invention relates to a device (10) and a method for changing support rolls (12) on a roll stand (11). After the work rolls have been extended, a roll change chair (14) is introduced into the roll stand (11) transversely to the rolling direction (W), the roll change chair (14) with a lower part (16) thereof on chocks (18.2) of the lower support roll (12.2 ) can be supported and the upper support roller (12.1) can be lowered onto the roller changing chair (14). The roll change chair (14) is moved into the roll stand (11) via the extension rails (24) provided for the work rolls of the roll stand (11), and after the upper support roll (12.1) has been lowered onto the roll change chair (14), either only the upper support roller (12.1) or a unit formed from the lower and upper support roller (12.1, 12.2) is / are extended from the roll stand (11).
Description
Die Erfindung betrifft ein Verfahren zum Wechseln von Stützwalzen an einem Walzgerüst nach dem Oberbegriff von Anspruch 1, und eine entsprechende Vorrichtung nach dem Oberbegriff von Anspruch 9.The invention relates to a method for changing support rolls on a roll stand according to the preamble of claim 1, and a corresponding device according to the preamble of claim 9.
Nach dem Stand der Technik kann zum Wechseln von Stützwalzen bei einem Walzgerüst ein sogenannter Walzenwechselstuhl eingesetzt werden, was beispielsweise aus
Das vorstehend erläuterte Vorgehen unterliegt dem Nachteil, dass es zur Vorbereitung eines Austauschs der oberen Stützwalze zunächst erforderlich ist, die untere Stützwalze aus dem Gerüstbereich herauszufahren, um hierauf den Walzenwechselstuhl aufzusetzen. Das Ausfahren der unteren Stützwalze, und das anschließende Einfahren der unteren Stützwalze mitsamt des darauf aufgesetzten Walzenwechselstuhls, beansprucht kostspielige Rüstzeit. Ein weiterer Nachteil dieses Vorgehens liegt darin, dass zum Abheben der oberen Stützwalze von dem Walzenwechselstuhl, nachdem der Verbund aus untere Stützwalze, Walzenwechselstuhl und darauf abgesetzter oberer Stützwalze aus dem Gerüstbereich herausgefahren ist, wie erläutert ein Hallenkran eingesetzt wird, der dann in der Zeit des Wechsels der oberen Stützwalze nicht für andere Vorgänge zur Verfügung steht.The procedure explained above is subject to the disadvantage that, in order to prepare for an exchange of the upper support roller, it is first necessary to move the lower support roller out of the stand area in order to place the roller change chair on it. Extending the lower support roller and then retracting the lower support roller together with the roller change chair placed on it takes up expensive set-up time. Another disadvantage of this procedure lies in the fact that, as explained, an indoor crane is used to lift the upper backup roller from the roll changing chair after the assembly of the lower backup roller, the roller changing chair and the upper backup roller placed thereon has been moved out Changing the top backup roller is not available for other operations.
Entsprechend liegt der Erfindung die Aufgabe zugrunde, das Wechseln von Stützwalzen bei einem Walzgerüst zu vereinfachen, indem es in kürzerer Zeit und damit zu geringeren Kosten durchführbar ist.Accordingly, the object of the invention is to simplify the replacement of support rolls in a roll stand by being able to be carried out in a shorter time and thus at a lower cost.
Diese Aufgabe wird durch ein mit den Merkmalen von Anspruch 1 angegebenes Verfahren, und durch eine mit den Merkmalen von Anspruch 9 definierte Vorrichtung gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen definiert.This object is achieved by a method specified with the features of claim 1 and by a device defined by the features of claim 9. Advantageous developments of the invention are defined in the dependent claims.
Das Verfahren nach der vorliegenden Erfindung dient zum Wechseln von Stützwalzen an einem Walzgerüst. Hierbei wird nach einem Ausfahren der Arbeitswalzen ein Walzenwechselstuhl quer zur Walzrichtung in das Walzgerüst eingebracht, wobei der Walzenwechselstuhl mit einem unteren Teil davon auf Einbaustücke der unteren Stützwalze aufgestützt und die obere Stützwalze auf den Walzenwechselstuhl abgesenkt werden kann. Der Walzenwechselstuhl wird in das Walzgerüst über die für die Arbeitswalzen des Walzgerüstes vorgesehenen Ausfahrschienen eingefahren, wobei, nachdem die obere Stützwalze auf den Walzenwechselstuhl abgesenkt worden ist, dann entweder nur die obere Stützwalze oder eine Einheit gebildet aus der unteren und oberen Stützwalze aus dem Walzgerüst ausgefahren wird/werden.The method according to the present invention is used to change support rolls on a roll stand. In this case, after the work rolls have been extended, a roll changing chair is introduced into the roll stand transversely to the rolling direction, with the roll changing chair having a lower part thereof Chocks of the lower support roller supported and the upper support roller can be lowered onto the roller changing chair. The roll change chair is moved into the roll stand via the extension rails provided for the work rolls of the roll stand, and after the upper support roll has been lowered onto the roll change chair, either only the upper support roll or a unit made up of the lower and upper support roll are moved out of the roll stand will become.
Eine Vorrichtung nach der vorliegenden Erfindung dient zu dem gleichen Zweck, nämlich zum Wechseln von Stützwalzen an einem Walzgerüst. In einem solchen Walzgerüst ist die obere Stützwalze in heb - oder senkbaren Einbaustücken an einem Ständerrahmen des Walzgerüstes geführt. Die erfindungsgemäße Vorrichtung umfasst einen Walzenwechselstuhl, der auf Einbaustücke der unteren Stützwalze des Walzgerüstes aufgestützt werden kann. Der Walzenwechselstuhl weist vorzugsweise an beiden Seiten davon Einfahrhilfen mit Gleitrollen oder Gleitelementen auf, die zum Einfahren des Walzenwechselstuhls in das Walzgerüst quer zur Walzrichtung in Wechselwirkung mit den für die Arbeitswalzen des Walzgerüstes vorgesehenen Ausfahrschienen gebracht werden können. Des Weiteren weist der Walzenwechselstuhl eine Absenkeinrichtung auf, mittels der der Walzenwechselstuhl mit seinem unteren Teil, nachdem der Walzenwechselstuhl in das Walzgerüst eingebracht worden ist, auf die Einbaustücke der unteren Stützwalze des Walzgerüstes aufgestützt werden kann.A device according to the present invention serves the same purpose, namely for changing support rolls on a roll stand. In such a roll stand, the upper support roll is guided in liftable or lowerable chocks on a stand frame of the roll stand. The device according to the invention comprises a roll changer which can be supported on chocks of the lower support roll of the roll stand. The roller changing chair preferably has entry aids on both sides thereof with sliding rollers or sliding elements which can be brought into interaction with the extension rails provided for the work rolls of the rolling stand in order to move the roller changing chair into the roll stand transversely to the rolling direction. Furthermore, the roller changing chair has a lowering device, by means of which the lower part of the roller changing chair, after the roller changing chair has been introduced into the roll stand, can be supported on the chocks of the lower support roll of the roll stand.
Der Erfindung liegt die wesentliche Erkenntnis zugrunde, dass der Walzenwechselstuhl, nachdem zuvor die Arbeitswalzen aus dem Walzgerüst ausgefahren worden sind, dann über die für die Arbeitswalzen vorgesehenen Ausfahrschienen in das Walzgerüst eingefahren wird bzw. werden kann. Diese Ausfahrschienen, die primär für das Ausfahren der Arbeitswalzen vorgesehen sind, werden nachfolgend stets nur als solche bezeichnet. Zwecks eines Einfahrens in das Walzgerüst ist der Walzenwechselstuhl vorzugsweise an beiden Seiten davon mit Einfahrhilfen ausgerüstet, die Gleitrollen oder Gleitelemente umfassen, die mit den Ausfahrschienen in Kontakt bzw. Wechselwirkung gebracht werden können. Im Ergebnis kann damit der Walzenwechselstuhl in das Walzgerüst eingefahren werden, ohne dass es dabei - wie bei dem eingangs erläuterten herkömmlichen Vorgehen - erforderlich ist, zuvor die untere Stützwalze aus dem Walzgerüst aufzufahren. Hierdurch kann die Zeit zum Auswechseln der Stützwalzen beträchtlich vermindert werden.The invention is based on the essential finding that, after the work rolls have previously been moved out of the roll stand, the roll changing chair is then or can be moved into the roll stand via the extension rails provided for the work rolls. These extension rails, which are primarily intended for extending the work rolls, are always referred to as such below. For the purpose of entering the roll stand, the roll changing chair is preferably on both sides of it Retractable aids equipped that include casters or sliding elements that can be brought into contact or interact with the extension rails. As a result, the roll changing chair can thus be moved into the roll stand without it being necessary, as in the conventional procedure described at the outset, to first open the lower support roll from the roll stand. As a result, the time for replacing the backup rolls can be considerably reduced.
Nachdem der Walzenwechselstuhl quer zur Walzrichtung über die Ausfahrschienen in das Walzgerüst eingefahren worden ist, kann er mittels einer integrierten Absenkeinrichtung innerhalb des Walzgerüstes derart abgesenkt werden, dass sich ein unterer Teil des Walzenwechselstuhls auf den Einbaustücken der unteren Stützwalze aufstützt. Im Anschluss daran kann die obere Stützwalze - in an sich bekannter Weise - abgesenkt und auf einen oberen Teil des Walzenwechselstuhls aufgestützt werden.After the roll change chair has been moved into the roll stand via the extension rails at right angles to the rolling direction, it can be lowered by means of an integrated lowering device within the roll stand in such a way that a lower part of the roll change chair is supported on the chocks of the lower support roll. The upper support roller can then be lowered - in a manner known per se - and supported on an upper part of the roller changing chair.
Nach einer möglichen Ausführungsform der Erfindung ist vorgesehen, dass der Walzenwechselstuhl mit seinem oberen und unteren Teil eine Einheit ausbildet. Mit einem solchen Walzenwechselstuhl, der wie erläutert mit seinem unteren Teil auf den Einbaustücken der unteren Stützwalze aufgestützt ist, ist es möglich, die obere Stützwalze, wenn diese auf den oberen Teil des Walzenwechselstuhls aufgestützt ist, zusammen mit der unteren Stützwalze seitlich aus dem Walzgerüst auszufahren.According to a possible embodiment of the invention, it is provided that the roller changing chair forms a unit with its upper and lower part. With such a roller change chair, which, as explained, its lower part is supported on the chocks of the lower support roller, it is possible to extend the upper support roller, when it is supported on the upper part of the roller change chair, together with the lower support roller laterally out of the roll stand ,
Nach einer alternativen und vorteilhaften Weiterbildung der Erfindung ist der Walzenwechselstuhl zweiteilig ausgebildet, nämlich in Form eines oberen Teils und eines unteren Teils. Diese beiden Teile des Walzenwechselstuhls können miteinander gekoppelt und - bei Bedarf - voneinander entkoppelt werden. Zwischen dem oberen Teil und dem unteren Teil des Walzenwechselstuhls sind Gleitelemente, Gleitflächen oder Schienen vorgesehen, die - wenn die beiden Teile voneinander entkoppelt sind - eine Relativverschiebung zwischen dem oberen Teil und dem unteren Teil des Walzenwechselstuhls ermöglichen. Wie vorstehend an anderer Stelle bereits erläutert, kann der untere Teil des Walzenwechselstuhls auf den Einbaustücken der unteren Stützwalze aufgestützt werden, mittels einer Betätigung der genannten Absenkeinrichtung. Diese zweiteilige Ausführungsform des Walzenwechselstuhls dient dazu, dass die obere Stützwalze, wenn sie auf den oberen Teil des Walzenwechselstuhls abgesenkt und darauf abgestützt ist, dann zusammen mit dem oberen Teil des Walzenwechselstuhls und unabhängig von einer unteren Stützwalze aus dem Walzgerüst ausgefahren, oder umgekehrt wieder in das Walzgerüst eingefahren werden kann. Jedenfalls ist hierbei von wesentlicher Bedeutung, dass bei einem solchen Aus- oder Einfahren der oberen Stützwalze aus dem bzw. in das Walzgerüst dann die untere Stützwalze ortsfest innerhalb des Walzgerüstes verbleibt und nicht bewegt wird. Auch dies führt zu einer verminderten Rüstzeit in Bezug auf ein Wechseln der oberen Stützwalze.According to an alternative and advantageous development of the invention, the roller changing chair is constructed in two parts, namely in the form of an upper part and a lower part. These two parts of the roller changing chair can be coupled together and - if necessary - decoupled from each other. Sliding elements, sliding surfaces or rails are provided between the upper part and the lower part of the roller changing chair, which - if the two Parts are decoupled from each other - enable a relative displacement between the upper part and the lower part of the roller changing chair. As already explained elsewhere above, the lower part of the roller changing chair can be supported on the chocks of the lower supporting roller by actuating the lowering device mentioned. This two-part embodiment of the roller changing chair serves that the upper support roller, when it is lowered onto the upper part of the roller changing chair and supported thereon, then extends out of the roll stand together with the upper part of the roller changing chair and independently of a lower support roller, or vice versa the roll stand can be retracted. In any case, it is of essential importance that when the upper support roller extends or retracts from or into the roll stand, the lower support roll remains stationary within the roll stand and is not moved. This also leads to a reduced set-up time in relation to changing the upper backup roller.
Die zuletzt genannte Ausführungsform der Erfindung, wonach der Walzenwechselstuhl zweiteilig in Form eines oberen und unteren Teils ausgebildet ist, dient im Wesentlichen zur Entnahme bzw. zum Wechseln der oberen Stützwalze eines Walzgerüstes. Wie erläutert, wird der untere Teil des Walzenwechselstuhls auf den Einbaustücken der unteren Stützwalze aufgestützt. Durch ein gleichzeitiges Entspannen der Absenkeinrichtung werden dann das Gewicht des Walzenwechselstuhls und der auf dessen oberen Teil abgesenkten oberen Stützwalze in diese Einbaustücke abgeleitet und lastet jedenfalls nicht auf den Ausfahrschienen der Arbeitswalzen.The last-mentioned embodiment of the invention, according to which the roller changing chair is formed in two parts in the form of an upper and lower part, essentially serves for removing or changing the upper supporting roller of a roll stand. As explained, the lower part of the roller changing chair is supported on the chocks of the lower support roller. By simultaneously relaxing the lowering device, the weight of the roller changing chair and the upper supporting roller lowered on its upper part are then diverted into these chocks and in any case does not bear on the extension rails of the working rollers.
Für beide der vorstehend genannten Ausführungsformen des Walzenwechselstuhls wird gesondert darauf hingewiesen, dass, wenn entweder die Einheit gebildet aus der oberen und unteren Stützwalze oder lediglich die obere Stützwalze aus dem Walzgerüst ausgefahren oder in das Walzgerüst eingefahren werden, dann die Einfahrhilfen des Walzenwechselstuhls und deren Gleitrollen oder Gleitelemente in Bezug auf die Ausfahrschienen zumindest lastvermindert oder im Wesentlichen lastfrei gestellt sind.For both of the above-mentioned embodiments of the roll changing chair, it is pointed out separately that if either the unit is formed from the upper and lower support roll or only the upper support roll is extended from the roll stand or into the roll stand are retracted, then the retracting aids of the roller changing chair and their sliding rollers or sliding elements are at least reduced in relation to the extension rails or are essentially made free of loads.
Im Sinne der vorliegenden Erfindung bedeutet das Merkmal "lastvermindert", dass bei einem Bewegen des Walzenwechselstuhls, insbesondere wenn darauf die obere Stützwalze abgesenkt worden ist, entlang der Ausfahrschienen die Absenkeinrichtung insoweit entspannt ist, dass ein Gewicht des Walzenwechselstuhls, welches auf den Ausfahrschienen lastet, nicht das Gewicht der Arbeitswalzen des Walzgerüstes übersteigt. Im Umkehrschluss bedeutet dies, dass die Absenkeinrichtung insoweit betätigt bzw. entspannt wird, dass die Hauptlast des oberen Teils des Walzenwechselstuhls, auf den sich auch die obere Stützwalze aufstützt, von den Gleitelementen bzw. Gleitflächen aufgenommen wird, die zwischen dem oberen Teil und dem unteren Teil des Walzenwechselstuhls vorgesehen sind, und dann über den unteren Teil des Walzenwechselstuhls in die Einbaustücke der unteren Stützwalze abgeleitet wird. Hierdurch wird eine Überlastung und somit eine mögliche Schädigung der Ausfahrschienen verhindert.In the sense of the present invention, the feature “load-reduced” means that when the roller changing chair is moved, in particular if the upper supporting roller has been lowered thereon, along the extension rails, the lowering device is relaxed to such an extent that a weight of the roller changing chair that is loaded on the extension rails is does not exceed the weight of the work rolls of the roll stand. Conversely, this means that the lowering device is actuated or relaxed to the extent that the main load of the upper part of the roller changing chair, on which the upper supporting roller is also supported, is absorbed by the sliding elements or sliding surfaces, which are between the upper part and the lower one Part of the roller changing chair are provided, and then is derived via the lower part of the roller changing chair in the chocks of the lower support roller. This prevents overloading and thus possible damage to the extension rails.
Die Erfindung ermöglicht vorteilhaft ein automatisiertes Wechseln entweder der oberen Stützwalze oder einer Einheit gebildet aus unterer und oberer Stützwalze. Dieses Wechseln findet vorzugsweise weitgehend automatisiert statt, und kann auch vollautomatisiert erfolgen. Das gezielte Einfahren des Walzenwechselstuhls hinein in das Walzgerüst auf den Ausfahrschienen und das anschließende Aufstützen des Walzenwechselstuhls auf den Einbaustücken der unteren Stützwalze führt dazu, dass ein ansonsten aufwändiges manuelles Justieren des Walzenwechselstuhls auf der herausgefahrenen unteren Stützwalze wegfällt. Ein solches automatisches Wechseln von zumindest einer Stützwalze, auf Grundlage des genannten seitlichen Einfahrens des Walzenwechselstuhls über die Ausfahrschienen, führt zu einer beträchtlichen Einsparung an Rüstzeit, und gleichzeitig auch zu einer erhöhten Sicherheit für das Bedienpersonal.The invention advantageously enables automated changing of either the upper support roller or a unit formed from the lower and upper support rollers. This change is preferably largely automated, and can also be fully automated. The targeted retraction of the roller change chair into the roll stand on the extension rails and the subsequent support of the roller change chair on the chocks of the lower support roller means that an otherwise complex manual adjustment of the roller change chair on the extended lower support roller is eliminated. Such an automatic change of at least one support roller, based on the lateral retraction of the roller change chair via the extension rails, leads to a considerable saving in set-up time and, at the same time, to increased safety for the operating personnel.
Weitere Vorteile und Merkmale der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung von vorteilhaften Ausführungsformen, die anhand einer schematisch vereinfachten Zeichnung im Detail erläutert sind. Es zeigen:
- Fig. 1
- eine schematisch vereinfachte Seitenansicht eines Teils eines Walzgerüstes, mit einem darin eingefahrenen Walzenwechselstuhl in einer ersten Betriebsposition,
- Fig. 2
- eine schematisch vereinfachte Seitenansicht des Walzgerüstes von
Fig. 1 , mit einem darin eingefahrenen Walzenwechselstuhl in einer zweiten Betriebsposition, - Fig. 3
- eine schematisch vereinfachte Seitenansicht des Walzgerüstes von
Fig. 2 , mit einer auf den Walzenwechselstuhl abgesenkten oberen Stützwalze, - Fig. 4
- eine schematisch vereinfachte Seitenansicht des Walzgerüstes von
Fig. 2 nach einer alternativen Ausführungsform, mit einer auf den Walzenwechselstuhl abgesenkten oberen Stützwalze, - Fig. 5.1, 5.2
- eine jeweils vereinfachte Seitenansicht und Draufsicht eines Walzgerüstes in einer Ausgangsposition,
- Fig. 6.1, 6.2
- eine jeweils vereinfachte Seitenansicht und Draufsicht eines Walzgerüstes mit herausgefahrenen Arbeitswalzen,
- Fig. 7.1, 7.2
- eine jeweils vereinfachte Seitenansicht und Draufsicht eines Walzgerüstes mit einem auf einer Verschiebeeinrichtung bereitgestellten Walzenwechselstuhl,
- Fig. 8.1, 8.2
- eine jeweils vereinfachte Seitenansicht und Draufsicht eines Walzgerüstes, mit eingefahrenem Walzenwechselstuhl in einer ersten Betriebsposition gemäß
Fig. 1 , - Fig. 9
- eine vereinfachte Seitenansicht eines Walzgerüstes, mit eingefahrenem Walzenwechselstuhl in einer zweiten Betriebsposition gemäß
Fig. 2 , - Fig. 10
- eine vereinfachte Seitenansicht eines Walzgerüstes von
Fig. 9 , wobei eine obere Stützwalze auf den Walzenwechselstuhl - gemäß der Darstellung vonFig. 3 - abgesenkt ist, und - Fig. 11.1,11.2
- eine jeweils vereinfachte Seitenansicht und Draufsicht eines Walzgerüstes, wenn der Walzenwechselstuhl zusammen mit der oberen Stützwalze aus dem Walzgerüst ausgefahren ist.
- Fig. 1
- 2 shows a schematically simplified side view of a part of a roll stand, with a roll changing chair retracted therein in a first operating position,
- Fig. 2
- a schematically simplified side view of the rolling stand of
Fig. 1 , with a roller changing chair retracted therein in a second operating position, - Fig. 3
- a schematically simplified side view of the rolling stand of
Fig. 2 , with an upper backup roller lowered onto the roller change chair, - Fig. 4
- a schematically simplified side view of the rolling stand of
Fig. 2 according to an alternative embodiment, with an upper support roller lowered onto the roller changing chair, - Fig. 5.1, 5.2
- a respectively simplified side view and top view of a rolling stand in an initial position,
- Fig. 6.1, 6.2
- a respectively simplified side view and top view of a roll stand with the work rolls extended,
- Fig. 7.1, 7.2
- a respectively simplified side view and top view of a roll stand with a roll changing chair provided on a displacement device,
- Fig. 8.1, 8.2
- a respective simplified side view and top view of a roll stand, with the roller changing chair retracted in a first operating position according to
Fig. 1 . - Fig. 9
- a simplified side view of a roll stand, with the roller changing chair retracted in a second operating position
Fig. 2 . - Fig. 10
- a simplified side view of a roll stand of
Fig. 9 , with an upper backup roller on the roller changing chair - according to the representation ofFig. 3 - is lowered, and - Fig. 11.1, 11.2
- each a simplified side view and top view of a roll stand when the roll changing chair is extended together with the upper backup roll from the roll stand.
Nachstehend sind unter Bezugnahme auf die
In den
Die Vorrichtung 10 dient zum Wechseln von Stützwalzen 12 an dem Walzgerüst 11, und ist dazu vorgesehen, von der Seite her, d.h. quer zur Walzrichtung W (vgl.
Das Walzgerüst 11 umfasst Ausfahrschienen 24, über die Arbeitswalzen aus dem Walzgerüst 11 herausgefahren werden können. In den Darstellungen der
Die Vorrichtung 10 umfasst einen Walzenwechselstuhl 14, der zu beiden Seiten davon Einfahrhilfen 20 aufweist. Diese Einfahrhilfen 20 sind mit Gleitrollen oder Gleitelementen ausgestattet, die nachstehend gemeinsam als Gleitmittel 21 bezeichnet sind und eine Relativbewegung der Einfahrhilfe auf bzw. bezüglich der Ausfahrschiene 24 gewährleisten. Des Weiteren umfasst der Walzenwechselstuhl 14 eine an den Einfahrhilfen 20 angebrachte Absenkeinrichtung 22, deren Funktion nachfolgend noch gesondert erläutert ist.The
Gemäß einer ersten Ausführungsform der Vorrichtung 10, die in den
In einem Ausgangszustand, bei dem der obere Teil 15 mit dem unteren Teil 16 gekoppelt ist, kann der Walzenwechselstuhl 14 von der Seite her, d.h. quer zur Walzrichtung W (vgl.
Bezüglich dieser Position des Walzenwechselstuhls 14 wird gesondert darauf hingewiesen, dass dabei der untere Teil 16 des Walzenwechselstuhls 14 noch keinen Kontakt zu den Einbaustücken 18.2 der unteren Stützwalze 12.2 hat.With regard to this position of the
In der
An einer Oberseite des oberen Teils 15 des Walzenwechselstuhls 14 ist eine Stützpfanne 23 vorgesehen. Durch ein Absenken der Einbaustücke 18.1, die der oberen Stützwalze 12.1 zugeordnet sind, wird erreicht, dass sich die Einbaustücke 18.1 der oberen Stützwalze 12.1 in die Stützpfanne 23 ablegen. Dies ist vereinfacht in der Darstellung von
Durch das vorstehend genannte Aufstützen des unteren Teils 16 des Walzenwechselstuhls 14 auf den zugeordneten Einbaustücken 18.2 wird erreicht, dass die Einfahrhilfen 20 in Bezug auf die Ausfahrschienen 24 zumindest lastvermindert oder gar lastfrei gestellt sind. Dies bedeutet im Sinne der vorliegenden Erfindung, dass eine Gewichtslast des Walzenwechselstuhls 14 und insbesondere der darauf abgesenkten oberen Stützwalze 12.1 nicht auf den Ausfahrschienen 24 lastet, sondern zunächst durch die Gleitelemente 17 zwischen den beiden Teilen 15, 16 des Walzenwechselstuhls 14 aufgenommen und anschließend über den unteren Teil 16 des Walzenwechselstuhls 14 in die Einbaustücke 18.2 der unteren Stützwalze 12.2 abgeleitet wird.By the above-mentioned support of the
Die Vorrichtung 10 umfasst des Weiteren eine Verschiebeeinrichtung 26, die vereinfacht in der Seitenansicht von
Die Verschiebeeinrichtung 26 ist dazu geeignet, dass darauf der Walzenwechselstuhl 14 positioniert bzw. "geparkt" wird. Die Oberfläche der Verschiebeeinrichtung 26 ist ausreichend groß bemessen, dass darauf zusätzlich die Arbeitswalzen 13 des Walzgerüstes 11 aufgenommen werden können. In der Darstellung von
Die Seitenansichten nach den
Die
Die
An dieser Stelle wird gesondert darauf hingewiesen, dass an einer Oberseite der Verschiebeeinrichtung 26 Schienen angebracht sind, auf denen der Walzenwechselstuhl 14 verfahren werden können. Diese Schienen sind beispielsweise in den
An der Oberseite der Verschiebeeinrichtung 26 sind des Weiteren Schienen 29 vorgesehen, deren "Spurbreite" kleiner ist als die der Schienen 28. Die Funktion dieser Schienen 29 wird nachstehend noch gesondert erläutert.
Die
Nun kann der Walzenwechselstuhl 14 innerhalb des Walzgerüstes 11 durch eine Betätigung der Absenkeinrichtung 22 nach unten abgesenkt werden. Dies hat zur Folge, dass sich der untere Teil 16 des Walzenwechselstuhls 14 auf den Einbaustücken 18.2 der unteren Stützwalze 12.2 abstützt. Diese Position des Walzenwechselstuhls 14 ist in der Seitenansicht von
Im Anschluss daran wird die obere Stützwalze 12.1 über die zugeordneten Einbaustücke 18.1 auf die Stützpfanne 23 abgesenkt. Somit liegt das Gewicht der oberen Stützwalze 12.1 nun auf dem oberen Teil 15 des Walzenwechselstuhls 14. Diese Position der oberen Stützwalze 12.1 ist in der Seitenansicht von
Es ist bereits darauf hingewiesen worden, dass die Ausführungsform des Walzenwechselstuhls 14 nach den
Nachdem der obere Teil 15 des Walzenwechselstuhls 14, wenn er auf die Verschiebeeinrichtung 26 und die darauf angeordneten Schienen 29 ausgefahren worden ist, mit einer neuen oberen Stützwalze 12.1 bestückt worden ist, kann der vorstehend erläuterte Ablauf in umgekehrter Reihenfolge durchgeführt werden, um diese neue Stützwalze 12.1 in das Walzgerüst 11 einzubringen.After the
Die Verschiebeeinrichtung 26 kann an ihrer Oberseite mit einer Plattform 30 versehen sein, die in vertikaler Richtung in der Höhe verstellbar ist. Diese Höhenverstellbarkeit ist z.B. in der
Eine weitere Ausführungsform der erfindungsgemäßen Vorrichtung 10 ist in der
Schließlich darf darauf hingewiesen werden, dass sich auch die zweiteilige Ausführungsform des Walzenwechselstuhls 14 - in gleicher Weise wie die Ausführungsform von
Ungeachtet der vorstehend erläuterten verschiedenen Einsatzmöglichkeiten des Walzenwechselstuhls 14 ist als gemeinsamer Vorteil festzuhalten, dass hiermit eine beträchtliche Verminderung der Rüstzeit zum Wechseln zumindest der oberen Stützwalze 12.1 möglich ist, weil der Walzenwechselstuhl 14 - bei bereits entnommenen Arbeitswalzen 13 - dann über die Ausfahrschienen 24 in das Walzgerüst 11 hinein bewegt werden kann, währenddessen sich die untere Stützwalze 12.2 weiterhin im Walzgerüst 11 befindet.Regardless of the various possible uses of the
Eine weitere Verminderung der Rüstzeit wird dadurch gewährleistet, dass die vorstehend genannten Abläufe - in beiden Richtungen (d.h. Einfahren des Walzenwechselstuhls 14 hinein in das Walzgerüst 11 über die Ausfahrschienen 24, und anschließendes Ausfahren zumindest einer Stützwalze 12 in Verbindung mit zumindest dem oberen Teil 15 des Walzenwechselstuhls 14; oder umgekehrt: Einfahren von neuen bzw. "frischen" Stützwalzen 12 hinein in das Walzgerüst 11 in Verbindung mit dem Walzenwechselstuhl 14 bzw. dessen oberen Teil 15, und anschließendes Ausfahren des Walzenwechselstuhls 14 aus dem Walzgerüst 11 über die Ausfahrschienen 24) - insbesondere vollautomatisch durchgeführt werden, und somit von einem (nicht gezeigten) Leitstand einer Anlage, zu der das Walzgerüst 11 gehört, steuerbar sind.A further reduction in the set-up time is ensured by the fact that the abovementioned processes - in both directions (that is, the
- 1010
- Vorrichtungcontraption
- 1111
- Walzgerüstrolling mill
- 1212
- Stützwalze(n)Support roller (s)
- 12.112.1
- obere Stützwalzeupper backup roller
- 12.212.2
- untere Stützwalzelower backup roller
- 1313
- Arbeitswalzenstrippers
- 1414
- WalzenwechselstuhlRoll changing frame
- 1515
- oberer Teil (des Walzenwechselstuhls 14)upper part (of the roller change chair 14)
- 1616
- unterer Teil (des Walzenwechselstuhls 14)lower part (of the roller change chair 14)
- 1717
-
Gleitelemente bzw. Gleitflächen (zwischen dem oberen Teil 15 und dem unteren Teil 16 des Walzenwechselstuhls 14)Sliding elements or sliding surfaces (between the
upper part 15 and thelower part 16 of the roller changing chair 14) - 18.118.1
- Einbaustück(e) der oberen Stützwalze 12.1Installation piece (s) of the upper support roller 12.1
- 18.218.2
- Einbaustück(e) der unteren Stützwalze 12.2Installation piece (s) of the lower support roller 12.2
- 2020
- Einfahrhilfedrive-in
- 2121
- Gleitmittellubricant
- 2222
- Absenkeinrichtunglowering
- 2323
- Stützpfannesupport pan
- 2424
- Ausfahrschienenrunout rails
- 2626
- Verschiebeeinrichtungshifter
- 2828
- Schienen für den Wechsel der Arbeitswalzen (auf der Oberseite der Verschiebeeinrichtung 26)Rails for changing the work rolls (on the top of the displacement device 26)
- 2929
- Schienen für den Wechsel der oberen Stützwalze (auf der Oberseite der Verschiebeeinrichtung 26)Rails for changing the upper support roller (on the top of the displacement device 26)
- 3030
- Plattform (auf der Verschiebeeinrichtung 26)Platform (on the displacement device 26)
- LL
- Längsachse (des Walzgerüstes 11)Longitudinal axis (of the roll stand 11)
- WW
- Walzrichtungrolling direction
Claims (16)
dadurch gekennzeichnet,
dass der Walzenwechselstuhl (14) in das Walzgerüst (11) über die für die Arbeitswalzen (13) des Walzgerüstes (11) vorgesehenen Ausfahrschienen (24) eingefahren wird, wobei, nachdem die obere Stützwalze (12.1) auf den Walzenwechselstuhl (14) abgesenkt worden ist, dann entweder nur die obere Stützwalze (12.1) oder eine Einheit gebildet aus der unteren und oberen Stützwalze (12.1, 12.2) aus dem Walzgerüst (11) ausgefahren wird/werden.Method for changing support rolls (12) on a roll stand (11), in which, after the work rolls (13) have been extended, a roll change chair (14) is introduced into the roll stand (11) transversely to the rolling direction (W), the roll change chair (14 ) can be supported with a lower part (16) thereof on chocks (18.2) of the lower support roller (12.2) and the upper support roller (12.1) can be lowered onto the roller changing chair (14),
characterized,
that the roller change chair (14) is moved into the roll stand (11) via the extension rails (24) provided for the work rolls (13) of the roll stand (11), the upper support roller (12.1) being lowered onto the roll change chair (14) is then either only the upper support roller (12.1) or a unit formed from the lower and upper support roller (12.1, 12.2) is / are extended from the roll stand (11).
dadurch gekennzeichnet,
dass der Walzenwechselstuhl (14) Einfahrhilfen (20) mit Gleitrollen oder Gleitelementen (21) aufweist, die zum Einfahren des Walzenwechselstuhls (14) in das Walzgerüst (11) quer zur Walzrichtung (W) in Wechselwirkung mit den für die Arbeitswalzen des Walzgerüstes (11) vorgesehenen Ausfahrschienen (24) bringbar sind, und
dass der Walzenwechselstuhl (14) eine Absenkeinrichtung (22) aufweist, mittels der der Walzenwechselstuhl (14) mit seinem unteren Teil (16), nachdem der Walzenwechselstuhl (14) in das Walzgerüst (11) eingebracht worden ist, auf die Einbaustücke (18.2) der unteren Stützwalze des Walzgerüstes (11) aufstützbar ist.Device (10) for changing support rolls (12) on a roll stand (11), the upper support roll (12.1) being guided in raisable or lowerable chocks (18.1) on a stand frame of the roll stand (11), comprising a roll changing chair ( 14) which can be supported on chocks (18.2) of the lower support roller (12.2) of the roll stand (11),
characterized,
that the roller changing chair (14) has retracting aids (20) with guide rollers or sliding elements (21) which, in order to move the roller changing chair (14) into the roll stand (11), transversely to the rolling direction (W) in interaction with those for the work rolls of the roll stand (11 ) provided extension rails (24) can be brought, and
that the roller changing chair (14) has a lowering device (22) by means of which the roller changing chair (14) with its lower part (16) after the roller changing chair (14) has been introduced into the roll stand (11) onto the chocks (18.2) the lower support roller of the roll stand (11) can be supported.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018210889.7A DE102018210889A1 (en) | 2018-07-03 | 2018-07-03 | Method and device for changing support rolls on a roll stand |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3590616A1 true EP3590616A1 (en) | 2020-01-08 |
EP3590616B1 EP3590616B1 (en) | 2020-12-23 |
Family
ID=67137561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19183123.9A Active EP3590616B1 (en) | 2018-07-03 | 2019-06-28 | Method and device for changing millers on a milling frame |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3590616B1 (en) |
DE (1) | DE102018210889A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020213494A1 (en) | 2020-10-27 | 2022-04-28 | Sms Group Gmbh | Maintenance device for the automated cleaning and maintenance of roll stands or parts thereof, and methods for the automatic cleaning of roll stands using the maintenance device and further use of the maintenance device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5536063A (en) * | 1978-09-08 | 1980-03-13 | Hitachi Ltd | Roll replacement device of rolling mill |
JPH01306006A (en) * | 1988-06-03 | 1989-12-11 | Hitachi Ltd | Device for changing backup roll |
DE19815029A1 (en) * | 1998-04-03 | 1999-10-07 | Schloemann Siemag Ag | Roll changing process for a stand in a strip mill train especially for steel strip rolling |
WO2003015949A1 (en) | 2001-08-06 | 2003-02-27 | Sms Demag Ag | Device for changing the work rolls and the back-up rolls of a strip mill |
CN105618489A (en) * | 2016-04-09 | 2016-06-01 | 广东韶钢松山股份有限公司 | Replacing device for backup roll on heavy and medium plate mill |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2319729C3 (en) * | 1973-04-18 | 1978-10-12 | Maschinen- Und Werkzeugbau Gmbh, 4600 Dortmund | Device for changing the work rolls of a rolling stand |
DE29721935U1 (en) * | 1997-12-11 | 1998-02-12 | Siemens AG, 80333 München | Device for changing rolls in roll stands |
CN1358452A (en) * | 2000-12-13 | 2002-07-17 | 谭振平 | Inner seasoned bean products |
-
2018
- 2018-07-03 DE DE102018210889.7A patent/DE102018210889A1/en not_active Withdrawn
-
2019
- 2019-06-28 EP EP19183123.9A patent/EP3590616B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5536063A (en) * | 1978-09-08 | 1980-03-13 | Hitachi Ltd | Roll replacement device of rolling mill |
JPH01306006A (en) * | 1988-06-03 | 1989-12-11 | Hitachi Ltd | Device for changing backup roll |
DE19815029A1 (en) * | 1998-04-03 | 1999-10-07 | Schloemann Siemag Ag | Roll changing process for a stand in a strip mill train especially for steel strip rolling |
WO2003015949A1 (en) | 2001-08-06 | 2003-02-27 | Sms Demag Ag | Device for changing the work rolls and the back-up rolls of a strip mill |
CN105618489A (en) * | 2016-04-09 | 2016-06-01 | 广东韶钢松山股份有限公司 | Replacing device for backup roll on heavy and medium plate mill |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020213494A1 (en) | 2020-10-27 | 2022-04-28 | Sms Group Gmbh | Maintenance device for the automated cleaning and maintenance of roll stands or parts thereof, and methods for the automatic cleaning of roll stands using the maintenance device and further use of the maintenance device |
WO2022090236A1 (en) | 2020-10-27 | 2022-05-05 | Sms Group Gmbh | Maintenance device for the automated cleaning and maintenance of roll stands or parts thereof, method for the automated cleaning of roll stands using the maintenance device, and other use of the maintenance device |
Also Published As
Publication number | Publication date |
---|---|
DE102018210889A1 (en) | 2020-01-23 |
EP3590616B1 (en) | 2020-12-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2243742B1 (en) | Scissor lifting platform | |
EP1954416A1 (en) | Method and device for handling/transporting working rolls and/or support rolls | |
EP1414597B1 (en) | Device and working method for automatically changing the work rolls, the back-up rolls and the intermediate rolls of a single-stand or multiple-stand strip mill | |
DE102006001316A1 (en) | Method for exchanging working rollers and/or intermediate rollers in mill stands of a rolling mill comprises transporting working roller sets and/or support roller sets from the mill stand to the roller workshop and back using a locomotive | |
WO2017050535A1 (en) | Roll stand and method for changing work rolls | |
DE2231455A1 (en) | DEVICE FOR REPLACING THE ROLLS OF A ROLLING MILL | |
EP3590616B1 (en) | Method and device for changing millers on a milling frame | |
DE967373C (en) | Vertical roll stand | |
EP1849535A1 (en) | Roll stand | |
DE202018003699U1 (en) | Device for changing support rolls on a roll stand | |
EP2563532B1 (en) | Device for handling and/or transporting back-up rolls and/or work rolls of a roll stand, at least in pairs | |
DE202010016581U1 (en) | wheelset | |
DE2224486A1 (en) | Improvement on the rolling mill or rolling stand | |
DE102014118134B4 (en) | Switchable bearing device of a pivotally mounted workpiece carrier of a machine tool | |
DE102016216768A1 (en) | manufacturing device | |
DE60023506T2 (en) | Telescoping system of a crane jib | |
DE4211100C2 (en) | Puller for the chocks of rolls deposited in a hurdle in a rolling mill | |
DE3902889C2 (en) | Open rolling mill with roll stands arranged side by side | |
DE102015201207B4 (en) | Four-saddle press tool and forging press and method for forging a workpiece | |
DE202004016666U1 (en) | Lifting facility for rail vehicles has outriggers of at least one lifting stand pair coupled under load in such way that outriggers are movable synchronously in same direction transversely to longitudinal center plane | |
DE1652561C (en) | Equipment for roll removal on universal roll stands | |
EP1785313A2 (en) | Lifting arm and transportation vehicle in particular a car transport trailer, equipped with the lifting arm | |
EP2358486A1 (en) | Car and method for transporting a drive spindle for a roller of a roll stand | |
DE1452089C (en) | Roll changing device | |
DE202019102217U1 (en) | Scherenhubtischsystem |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20190628 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20200703 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502019000575 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1347233 Country of ref document: AT Kind code of ref document: T Effective date: 20210115 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210323 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210324 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20201223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210323 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210423 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502019000575 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210423 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
26N | No opposition filed |
Effective date: 20210924 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20210630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210628 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210628 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210423 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210630 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220630 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20190628 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230707 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20240621 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240619 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20240620 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20201223 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20240625 Year of fee payment: 6 |