EP4373624A1 - Walzenwechselvorrichtung zum wechseln der arbeits- und/oder zwischenwalzen eines walzgerüsts - Google Patents
Walzenwechselvorrichtung zum wechseln der arbeits- und/oder zwischenwalzen eines walzgerüstsInfo
- Publication number
- EP4373624A1 EP4373624A1 EP22748023.3A EP22748023A EP4373624A1 EP 4373624 A1 EP4373624 A1 EP 4373624A1 EP 22748023 A EP22748023 A EP 22748023A EP 4373624 A1 EP4373624 A1 EP 4373624A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- cassette
- changing device
- changing
- base body
- 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
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
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
-
- 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
- B21B2203/06—Cassettes
-
- 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 roll changing device for changing the working and/or intermediate rolls of a rolling stand, the roll changing device comprising a roll changing carriage with which the rolls to be replaced or replaced can be transported.
- a roll changing device of this type is disclosed, for example, in EP 0 911 089 B1.
- the device described there is used for quick roll changes on a six-roll rolling stand, with a roll-changing carriage being used. Similar and other solutions are shown in EP 1 136 143 B1, EP 2 150 361 B1, EP 3 167975 B1 and JP H07 108305 A.
- the invention is based on the object of developing a roll changing device of the type mentioned at the outset in such a way that it is possible to ensure simplified and safe loading and unloading of a roll changing carriage. Furthermore, this process should be able to be accomplished faster, so that more economical work is possible. Finally, the security conditions should be able to be improved
- the roll-changing device comprises a cartridge that can be detachably arranged in the roll-changing carriage, the cartridge being equipped with receptacles for the rolls.
- the cassette preferably has a plurality of receiving spaces for rollers arranged one above the other.
- It may be provided with a load attachment means for engaging a crane hook.
- a preferred embodiment of the invention provides that the cassette consists of two basic components, namely a base body, which has the receiving spaces for the rollers, and a crane traverse, which can be detachably connected to the base body.
- the crane traverse is preferably provided with the load attachment means for engaging a crane hook.
- the crane traverse can surround the base body of the cassette at least on part of the outer sides of the base body when the base body and the crane traverse are connected to one another.
- the crane traverse preferably has a number of vertically extending columns; between four and eight, preferably six, vertically extending columns can be provided.
- the base body has a longitudinal extension that corresponds to the axis of the rollers accommodated, with at least one column being arranged in the axial end area of the base body in relation to the longitudinal extension if the Base body and the crane traverse are connected to each other.
- the roll changing device is preferably part of a cold or hot flat rolling mill.
- the proposed concept is therefore based on providing a transportable (separate) cassette for loading and unloading the roll-changing carriage, which can be placed in the roll-changing carriage and transported by it after it has been fitted with rollers to be replaced or replaced.
- the cassette when changing the working and/or intermediate rolls, the cassette is loaded with the individual rolls and the loaded cassette is then lifted into the roll-changing carriage by means of the indoor crane. It is preferred, but not mandatory, to use all of the receiving locations for rollers that are provided in the cassette.
- the interchangeable cassette can be automatically placed on the interchangeable carriage and removed from it again.
- the cassette can be automatically loaded and unloaded in the roller workshop.
- the preferred mode of operation for the use of the roll changing device described thus provides that the cassette (in the state removed from the roll changing carriage) is fitted with the rolls on the roll stand or in the roll shop or the rolls are removed from the cassette.
- the cassette When the cassette is loaded, it is placed on the roll changing carriage (using a crane). The rolls are therefore exchanged between the roll stand and the cassette or between the cassette and the roller workshop, with the cassette not being on the roll-changing carriage.
- the cassette can be designed in one piece or in two pieces (consisting of a base body and a crane traverse). In the latter case, the base body of the cassette is surrounded by a custom-made crane traverse (load suspension).
- the crane traverse can secure the rollers in the cassette for transport, i. H. the rollers are then secured in the base body of the cassette against displacement in the direction of their longitudinal axis.
- This is also very advantageous when new or refurbished rolls are to be transported, since damage during transport to the roll stand can be avoided.
- Another advantage is that the rollers can be quarantined without interruption, i. H. Roller breakage due to thermal stresses cannot endanger the operating personnel.
- the proposal according to the invention can be implemented inexpensively by a simple and inexpensive construction of the cassette (which applies in particular to the above-mentioned two-part embodiment).
- a further advantage is that when the proposed concept is used, after a roll change, the readiness to change the rolls again is given very quickly.
- the cassette can also be loaded automatically in the roller workshop, ie manual loading of the cassette in the roller workshop can be avoided, which is advantageous in terms of time, accuracy and safety.
- the cassettes can also be used as a roller storage point in the roller workshop.
- FIG. 1 shows a perspective view of a roll changing device for changing the working and/or intermediate rolls of a roll stand, with a roll changing carriage being shown, in which a cassette for receiving the rolls to be changed is inserted,
- FIG. 2 shows a perspective view of the arrangement according to FIG. 1, with the cassette being lifted out of the roll changing carriage,
- FIG. 5 shows the base body of the cassette according to FIG. 4 in a front view
- FIG. 6 shows a perspective view of two stacked base bodies of the cassette arranged one above the other
- 7 shows the cassette equipped with rollers during transport with a crane, showing a position of the cassette pivoted about a horizontal axis.
- FIG. 8 shows a perspective view of an arrangement analogous to FIG , and
- FIG. 9 shows a schematic of the process of loading and unloading the cassette with rollers, for which a displacement device (“tong carriage”) is used.
- a roll changing device 1 can be seen in FIG.
- the rolls 2 are the work rolls or intermediate rolls required in a rolling stand.
- the roll changing device 1 comprises at least one cassette 4 which can be detachably arranged in the roll changing carriage 3 .
- the cassette 4 is equipped with slots 5 (see FIG. 5) for the rollers 2.
- Cassette 4 to be loaded with the rolls 2 and then to use the loaded cassette by means of an indoor crane in the roll-changing carriage 3. This is illustrated in FIG. 2, where it can be seen that the cassette 4 is not yet in its place in the roll-changing carriage 3 .
- the handling or the transport of the cassette by means of the hall crane allow load suspension means 6, which are arranged on the cassette 4.
- a preferred embodiment (according to FIGS. 1 to 7) provides that the cassette 4 is designed essentially in two parts. It comprises, on the one hand, a base body 7 and, on the other hand, a crane traverse 8; this works best
- Figure 3 emerges.
- the base body 7 with a substantially cuboid Base geometry has a longitudinal extension L, which corresponds to the axis of rotation of the rollers 2 to be recorded. This results in axial end regions 13 and 14 of the base body 7 .
- the crane traverse 8 is then placed on the base body 7 loaded with rollers 2 and this is anchored to the base body 7 .
- engaging hooks (not shown) of the crane traverse can be used, which engage in corresponding recesses in the base body 7 .
- the cassette 7 fitted with rollers can then be transported by the indoor crane using the load attachment means 6 and taken to the roller-changing carriage 3 .
- the crane traverse 8 has a plurality of columns 10, 11, 12 which extend in the vertical direction (this is to be understood as vertical when the device is used as intended), the columns 10, 11, 12 on the outside 9 (see especially Figure 5) of the base body 7 in
- the columns 10, 11, 12 extend in the vertical direction, starting from a part of the traverse arranged at the top, and are free here so that they can be placed on the base body 7 without any problems. This makes it particularly easy to couple the base body 7 equipped with rollers 2 to the crane traverse 8 and thus complete it for transport.
- a column 10 comes to lie in one axial end area 13 and a column 12 in the other axial end area 14 .
- a transport lock can be produced in an advantageous manner, as can be seen from FIG.
- a position of the cassette 4 during transport is shown here, the cassette unfavorably coming to rest at an angle to the vertical V during transport. Accordingly, the rollers 2 can move in the longitudinal direction L in the cassette 4 . However, this movement is limited by the columns 10 or 12 and thus the rollers 2 are prevented from falling out of the cassette 4 .
- FIG. 5 shows that several base bodies 7 can be stacked, which is advantageous in terms of accommodation.
- FIG. 8 An alternative embodiment of the cassette 4 can be seen in FIG. 8, a different design being provided here.
- the crane traverse 8 also provided here engages in the upper end area of the base body 7 .
- This figure also shows a protective cover 15, which can be provided in all variants and which offers protection in the event of the roller bursting
- FIG. 9 illustrates how the cassette 4 is handled when rolls 2 are loaded into the cassette 4 or unloaded from it.
- a pulling or pushing device 16 is provided, with which the individual rollers 2 can be successively pushed out of the cassette 4 in the longitudinal extension L or pulled into it.
- a lifting device 17 brings the cassette into position in that vertical position in which the pulling or pushing device 16 can engage in the corresponding receiving space 5 for the roller 2 .
- the handling shown in FIG. 9 can be used both on the roll stand and in the roll shop.
- each roller 2 is provided with an identification element, for example with an RFID chip.
- the chip is read out when the cassette 4 is loaded by using a suitable reading device on the loading unit in the roller workshop.
- each cassette 4 has such an identification element, for example an RFID chip. This ensures that each roller 2 and its position in the interchangeable cassette 4 are known.
- the roll changing carriage 3 also has reading devices at the release positions of the cassette 4, which detect the cassettes 4. It is thus known which roll 2 is in which position and which position it assumes in the stand after the roll change.
- the roll selection can be carried out by connecting to a roll shop management system, which, for example, also receives data or information from a digital maintenance system (system for managing maintenance measures).
- a digital maintenance system system for managing maintenance measures.
- the cassette 4 can be equipped with this according to the situation.
- a cassette 4 While only a small number of rolls can be accommodated in a cassette 4 (at least two), it is also possible to design a cassette 4 to accommodate a complete set of rolls in the case of a four-high or six-high stand.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021207948.2A DE102021207948A1 (de) | 2021-07-23 | 2021-07-23 | Walzenwechselvorrichtung zum Wechseln der Arbeits- und/oder Zwischenwalzen eines Walzgerüsts |
| PCT/EP2022/069139 WO2023001599A1 (de) | 2021-07-23 | 2022-07-08 | Walzenwechselvorrichtung zum wechseln der arbeits- und/oder zwischenwalzen eines walzgerüsts |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4373624A1 true EP4373624A1 (de) | 2024-05-29 |
| EP4373624B1 EP4373624B1 (de) | 2025-09-10 |
| EP4373624C0 EP4373624C0 (de) | 2025-09-10 |
Family
ID=82742958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22748023.3A Active EP4373624B1 (de) | 2021-07-23 | 2022-07-08 | Walzenwechselvorrichtung zum wechseln der arbeits- und/oder zwischenwalzen eines walzgerüsts |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240342776A1 (de) |
| EP (1) | EP4373624B1 (de) |
| JP (1) | JP7715920B2 (de) |
| DE (1) | DE102021207948A1 (de) |
| WO (1) | WO2023001599A1 (de) |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3593555A (en) * | 1968-07-22 | 1971-07-20 | United States Steel Corp | Handling apparatus for mill rolls |
| US3646790A (en) * | 1968-11-21 | 1972-03-07 | Ilario Properzi | Apparatus for a multihead rolling unit arranged to enable the rapid removal and replacement of said unit |
| JPS4923991B1 (de) * | 1970-12-01 | 1974-06-19 | ||
| DE3244200A1 (de) * | 1982-11-30 | 1984-05-30 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | Walzenwechselvorrichtung fuer sechswalzen-walzgerueste |
| IT1209050B (it) * | 1983-11-11 | 1989-07-10 | Danieli Off Mecc | Rulli e attrezzature su gabbie di dispositivo per la sostituzione di laminazione con rulli a sbalzo. |
| JPH01111681U (de) * | 1988-01-20 | 1989-07-27 | ||
| JPH01118806U (de) * | 1988-02-01 | 1989-08-11 | ||
| JPH0429587U (de) * | 1990-07-03 | 1992-03-10 | ||
| JP2536787Y2 (ja) * | 1991-07-12 | 1997-05-28 | 株式会社建庄 | パネル等荷上げ具 |
| JPH0818054B2 (ja) * | 1992-07-06 | 1996-02-28 | 株式会社日立製作所 | 圧延機のロール交換装置 |
| JPH07121740B2 (ja) * | 1992-10-21 | 1995-12-25 | ハシモト工業株式会社 | 箱型パレット |
| JPH07108305A (ja) | 1993-10-13 | 1995-04-25 | Sumitomo Metal Ind Ltd | ロールショップの操業方法 |
| DE4340313A1 (de) * | 1993-11-26 | 1995-06-01 | Schloemann Siemag Ag | Walzgerüst |
| JPH082867A (ja) * | 1994-06-23 | 1996-01-09 | Nippon Steel Corp | 棒状物運搬用吊具 |
| JPH0910844A (ja) * | 1995-06-27 | 1997-01-14 | Nkk Corp | ロールチョック交換装置 |
| US5887472A (en) * | 1997-06-23 | 1999-03-30 | Abbey Etna Machine Company | Tooling changeover for tube mills |
| DE19747013A1 (de) * | 1997-10-24 | 1999-04-29 | Schloemann Siemag Ag | Vorrichtung und Verfahren für schnellen Walzenwechsel an einem Sechswalzen-Walzgerüst |
| JP2000185737A (ja) | 1998-12-22 | 2000-07-04 | Misawa Homes Co Ltd | パレットおよびこれを用いた資材の移送方法 |
| DE20004856U1 (de) | 2000-03-16 | 2000-05-25 | Achenbach Buschhütten GmbH, 57223 Kreuztal | Walzenwechselvorrichtung für Walzgerüste, insbesondere Sextowalzgerüste |
| JP4126056B2 (ja) | 2005-12-16 | 2008-07-30 | 株式会社伊藤製作所 | カゴ型パレット用吊り具 |
| DE102007026400A1 (de) | 2007-06-06 | 2008-12-11 | Siemens Ag | System zur Ermittlung von Parametern eines metallischen Bauteils einer Industrieanlage und System zum Wechseln einer Walze |
| EP3167975B1 (de) | 2015-11-13 | 2019-09-25 | SMS group GmbH | Anlage der hütten-, walzwerks-, schmiede- oder rohrindustrie sowie verfahren zu deren betrieb |
-
2021
- 2021-07-23 DE DE102021207948.2A patent/DE102021207948A1/de active Pending
-
2022
- 2022-07-08 EP EP22748023.3A patent/EP4373624B1/de active Active
- 2022-07-08 US US18/579,396 patent/US20240342776A1/en active Pending
- 2022-07-08 JP JP2024503938A patent/JP7715920B2/ja active Active
- 2022-07-08 WO PCT/EP2022/069139 patent/WO2023001599A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP4373624B1 (de) | 2025-09-10 |
| US20240342776A1 (en) | 2024-10-17 |
| WO2023001599A1 (de) | 2023-01-26 |
| JP2024527429A (ja) | 2024-07-24 |
| EP4373624C0 (de) | 2025-09-10 |
| JP7715920B2 (ja) | 2025-07-30 |
| DE102021207948A1 (de) | 2023-01-26 |
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