US20050000263A1 - Device for changing the work rolls and the back-up rolls of a strip-mill - Google Patents
Device for changing the work rolls and the back-up rolls of a strip-mill Download PDFInfo
- Publication number
- US20050000263A1 US20050000263A1 US10/485,974 US48597404A US2005000263A1 US 20050000263 A1 US20050000263 A1 US 20050000263A1 US 48597404 A US48597404 A US 48597404A US 2005000263 A1 US2005000263 A1 US 2005000263A1
- Authority
- US
- United States
- Prior art keywords
- roll
- changing
- carriage
- rolls
- extraction
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 claims abstract 3
- 238000000605 extraction Methods 0.000 claims description 35
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000012423 maintenance 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
Definitions
- the invention concerns equipment for changing the work rolls and backup rolls of a strip mill by means of a roll-changing carriage that moves transversely to the roll stand and receives the extracted old sets of rolls and replaces them with new sets of rolls.
- the previously known changing equipment has the disadvantage that the constructional expense for setting up the equipment is very high, especially because significant foundation adaptations are often necessary.
- Another disadvantage is that the necessary cylinders and hydraulic motors often must be supplied with energy via cable draglines, which is relatively expensive.
- the objective of the present invention is to refine the equipment in such a way that it can not only change the backup rolls, but can also change the work rolls with the same cylinder used to change the backup rolls.
- This solution in accordance with the invention has a number of advantages. For example, all of the cylinders are arranged in such a way that stationary piping is possible. This eliminates the cable draglines that would otherwise be necessary. Only three cylinder units are now necessary, specifically, for the roll-changing cylinder, the transverse shift table, and the locking equipment. Since the changing cylinder lies above the mill floor, hardly any foundation work is necessary. This and the simple and lighter type of construction of the entire changing equipment made it possible to reduce costs.
- the roll-changing carriage is initially in the standby position shown in FIG. 1 .
- the roll-changing carriage 2 is positioned below the changing cylinder 4 , which is shown with the piston rod 5 retracted.
- a prepared set of new rolls is located on the transverse shift table 6 next to the changing cylinder 4 .
- An extraction carriage 3 is located at the forward end of the piston rod 5 .
- the extraction carriage, together with the roll-changing carriage 2 is moved by the piston rod towards the roll stand and automatically couples with the old set of work rolls 8 .
- the connection between the extraction carriage 3 and the roll-changing carriage 2 is then broken, and at the same time the roll-changing carriage 2 is locked by the transverse shift cylinder 7 ( FIG. 3 ).
- the extraction carriage can then pull back the old set of rolls onto the transverse shift table 6 by means of the changing cylinder 4 .
- suitable transverse shifting by the transverse shift cylinder 7 brings the old set of work rolls out of position and the new set of work rolls into position ( FIG. 4 ), and then the new set of work rolls can be run into the stand, as is shown in FIGS. 5 and 6 .
- FIGS. 7 and 8 show the return to the starting point, i.e., the standby position of the roll-changing carriage 2 .
- the installation of the new set of work rolls is deferred, and the extraction carriage 3 first extracts the lower backup roll 9 from the roll stand. To do this, this backup roll is moved transversely to the roll stand on rails, which are located below the level of the mill floor (FIGS. 1 ′ and 2 ′).
- FIGS. 5 ′ to 16 ′ show the remainder of the installation operation, which is the reverse of the removal operation, and the return of the roll-changing carriage 2 to the standby position or starting point.
Abstract
The invention relates to a method and a device for changing the work rolls and the back-up rolls (8, 9) of a strip mill, by means of a roll-changing carriage (2) which can be transversally displaced in relation to the roll stand (1). Said roll-changing carriage receives the old sets of rolls removed, enabling them to be exchanged for new sets of rolls.
Description
- The invention concerns equipment for changing the work rolls and backup rolls of a strip mill by means of a roll-changing carriage that moves transversely to the roll stand and receives the extracted old sets of rolls and replaces them with new sets of rolls.
- A wide variety of different types of equipment for changing rolls is already known, and roll-changing carriages are also already being used. An example of this is DE 39 30 125 C2.
- In general, the previously known changing equipment has the disadvantage that the constructional expense for setting up the equipment is very high, especially because significant foundation adaptations are often necessary. Another disadvantage is that the necessary cylinders and hydraulic motors often must be supplied with energy via cable draglines, which is relatively expensive.
- The objective of the present invention is to refine the equipment in such a way that it can not only change the backup rolls, but can also change the work rolls with the same cylinder used to change the backup rolls.
- In accordance with the invention, this objective is achieved with the features of
claim 1. In particular, -
- a stationary changing cylinder is mounted at mill floor level, whose piston rod can be run in and out transversely to the roll stand,
- an extraction carriage, which is installed at the forward end of the piston rod of the changing cylinder, can be moved on the roll-changing carriage and can be coupled with the roll-changing carriage in such a way that the extraction carriage, together with the roll-changing carriage, can be moved by the changing cylinder transversely to the roll stand,
- and a transverse shift table, which is installed in the roll-changing carriage, can be shifted by a shift cylinder that is independent of the roll-changing carriage transversely to the direction of movement of the roll-changing carriage, and can bring the sets of rolls to be changed into or out of the changing position aligned with the middle of the stand.
- This solution in accordance with the invention has a number of advantages. For example, all of the cylinders are arranged in such a way that stationary piping is possible. This eliminates the cable draglines that would otherwise be necessary. Only three cylinder units are now necessary, specifically, for the roll-changing cylinder, the transverse shift table, and the locking equipment. Since the changing cylinder lies above the mill floor, hardly any foundation work is necessary. This and the simple and lighter type of construction of the entire changing equipment made it possible to reduce costs.
- Finally, it should also be noted that the more easily accessible stationary cylinder units facilitate maintenance work.
- The roll-changing carriage is initially in the standby position shown in
FIG. 1 . In this position, the roll-changingcarriage 2 is positioned below the changingcylinder 4, which is shown with thepiston rod 5 retracted. A prepared set of new rolls is located on the transverse shift table 6 next to the changingcylinder 4. Anextraction carriage 3 is located at the forward end of thepiston rod 5. AsFIG. 2 shows, the extraction carriage, together with the roll-changingcarriage 2, is moved by the piston rod towards the roll stand and automatically couples with the old set of work rolls 8. The connection between theextraction carriage 3 and the roll-changingcarriage 2 is then broken, and at the same time the roll-changingcarriage 2 is locked by the transverse shift cylinder 7 (FIG. 3 ). The extraction carriage can then pull back the old set of rolls onto the transverse shift table 6 by means of the changingcylinder 4. On the transverse shift table 6, suitable transverse shifting by thetransverse shift cylinder 7 brings the old set of work rolls out of position and the new set of work rolls into position (FIG. 4 ), and then the new set of work rolls can be run into the stand, as is shown inFIGS. 5 and 6 . -
FIGS. 7 and 8 show the return to the starting point, i.e., the standby position of the roll-changingcarriage 2. - If one wishes to change the backup rolls as well, the installation of the new set of work rolls is deferred, and the
extraction carriage 3 first extracts thelower backup roll 9 from the roll stand. To do this, this backup roll is moved transversely to the roll stand on rails, which are located below the level of the mill floor (FIGS. 1′ and 2′). - In a changing position to the side of the stand, a dummy is then placed on the lower backup roll (
FIG. 3 ′). The dummy is then moved back into the roll stand to pick up the upper backup roll (FIG. 4 ′). Both backup rolls are then brought back to the changing position provided to the side of the roll stand, where a crane is used to take away the old set of rolls and bring up the new set of rolls. FIGS. 5′ to 16′ show the remainder of the installation operation, which is the reverse of the removal operation, and the return of the roll-changingcarriage 2 to the standby position or starting point.
Claims (4)
1.-3. (canceled)
4. An apparatus for changing the work rolls and backup rolls of a roll stand in a strip mill, the strip mill defining a longitudinal path therethrough, said apparatus comprising:
a roll-changing carriage movable transversely to the longitudinal path of the strip mill, said roll-changing carriage being movable from a distal standby position to a proximal position relative to the roll stand;
a stationary changing cylinder mounted proximate a floor level of the strip mill and a piston movably inserted in said changing cylinder and having a forward end projecting out of said changing cylinder, said piston being movable in said changing cylinder transverse to the longitudinal path of the strip mill;
an extraction carriage connected to said piston rod at said forward end and movable with said piston rod on said roll-changing carriage, said extraction carriage being selectively connectable with said roll-changing carriage such that said extraction carriage and said roll-changing carriage are movable together by said piston rod of said changing cylinder transversely to the longitudinal path of said strip mill when said extraction carriage is connected with said roll-changing carriage;
a transverse shift table installed on said roll-changing carriage and movable approximately parallel to the longitudinal path of the strip mill; and
a shift cylinder movable approximately parallel to the longitudinal path of said strip mill and selectively engageable with said transverse shift table for moving said transverse shift table into and out of a changing position aligned with the roll stand.
5. A process for changing work rolls in a roll stand of a strip mill using the apparatus of claim 1, comprising the steps of:
arranging the roll-changing carriage at the distal standby position, wherein the transverse table holds a new set of work rolls;
coupling the extraction carriage to the roll-changing carriage and moving, by the changing cylinder, the extraction carriage and the roll-changing carriage to the proximal position relative to the roll stand;
connecting the extraction carriage with an old set of work rolls in the roll stand to be changed;
uncoupling the extraction carriage from the roll-changing carriage and engaging the transverse shift table with the shift cylinder, which causes the roll-changing carriage to be locked in the proximal position relative to the roll stand;
moving, by the changing cylinder and the extraction carriage, the old set of work rolls from the roll stand to a changing position on the transverse shift table;
disconnecting the extraction carriage from the old set of work rolls;
shifting the transverse shift table, by the shift cylinder, so that the old set of work rolls is moved out of the changing position and the new set of work rolls is moved into the changing position, which is aligned with the roll stand;
connecting the extraction carriage with the new set of work rolls and moving, by the changing cylinder, the extraction carriage and the new set of work rolls such that the new set of work rolls are moved into the roll stand;
disconnecting the extraction carriage from the new set of work rolls;
disengaging the shift cylinder from the transverse shift table and coupling the extraction carriage to the roll-changing carriage; and
moving the roll-changing carriage with the old set of work rolls located on the transverse shift table into the distal standby position, where the old set of work rolls is removeable.
6. A process for changing the backup rolls in a roll stand of a strip mill after removal of the work rolls using the apparatus of claim 1, comprising the steps:
arranging the roll-changing carriage at the distal standby position;
coupling the extraction carriage to the roll-changing carriage and moving, by the changing cylinder, the extraction carriage and the roll-changing carriage to the proximal position relative to the roll stand;
connecting the extraction carriage with a lower backup roll of the old set of backup rolls in the roll stand to be changed;
moving, by the changing cylinder, the extraction carriage and the roll-changing carriage together away from the roll stand such that the lower backup roll of the old set of backup rolls connected to the extraction carriage is brought into a changing position to the side of the roll stand;
placing a dummy on the lower backup roll;
moving, by the changing cylinder, the roll-changing carriage with the extraction carriage and the lower backup roll of the old set of backup rolls with the dummy back into the roll stand;
placing the upper backup roll of the old set of backup rolls on the dummy;
moving, by the changing cylinder, the roll-changing carriage with the extraction carriage and the old set of backup rolls out of the roll stand and into the changing position;
disconnecting the extraction carriage from the lower backup roll of the old set of backup rolls;
replacing the old set of backup rolls with a new set of backup rolls including a dummy;
connecting the extraction carriage with a lower backup roll of the new set of backup rolls;
moving, by the changing cylinder, the roll-changing carriage with the extraction carriage and the new set of backup rolls into the roll stand;
removing the upper backup roll of the new set of backup rolls from the dummy and installing the upper backup roll of the new set of backup rolls in the roll stand;
moving, by the changing cylinder, the roll-changing carriage with the extraction carriage and the lower backup roll of the new set of backup rolls with the dummy from the roll stand to the changing position;
removing the dummy from the lower backup roll of the new set of backup rolls;
moving, by the changing cylinder, the roll-changing carriage with the extraction carriage and the lower backup roll of the new set of backup rolls into the roll stand;
disconnecting the extraction carriage from the lower backup roll of the new set of backup rolls; and
moving, by the changing cylinder, the extraction carriage and the roll-changing carriage to the distal standby position.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10138588A DE10138588A1 (en) | 2001-08-06 | 2001-08-06 | Device for exchanging the working and supporting rollers of a rolling mill comprises an exchanging cylinder, a withdrawing car, and a cross-displacement table arranged in the car which can slide through a displacement cylinder |
DE10138588.9 | 2001-08-06 | ||
PCT/DE2002/002809 WO2003015949A1 (en) | 2001-08-06 | 2002-07-26 | Device for changing the work rolls and the back-up rolls of a strip mill |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050000263A1 true US20050000263A1 (en) | 2005-01-06 |
Family
ID=7694579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/485,974 Abandoned US20050000263A1 (en) | 2001-08-06 | 2002-07-26 | Device for changing the work rolls and the back-up rolls of a strip-mill |
Country Status (7)
Country | Link |
---|---|
US (1) | US20050000263A1 (en) |
EP (1) | EP1414598A1 (en) |
JP (1) | JP2004538148A (en) |
CN (1) | CN1498141A (en) |
DE (1) | DE10138588A1 (en) |
RU (1) | RU2004106601A (en) |
WO (1) | WO2003015949A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090044588A1 (en) * | 2006-01-09 | 2009-02-19 | Gerhard Blecher | Method and Device for Changing Rolls |
US20090165522A1 (en) * | 2005-11-25 | 2009-07-02 | Siemens Vai Mental Technologies Sas | Method of Managing Cylinders in a Rolling Facility and Installation for Implementing Same |
US7698923B2 (en) | 2004-02-18 | 2010-04-20 | Sms Siemag Aktiengesellschaft | Method of and device for exchanging sets of rolls |
US20100175239A1 (en) * | 2007-06-06 | 2010-07-15 | Goeggel Tobias | System for changing a roller |
US9061334B2 (en) | 2009-08-14 | 2015-06-23 | Sms Siemag Aktiengesellschaft | Device for handling and/or transporting rolls of a roll stand |
US20170100757A1 (en) * | 2014-02-11 | 2017-04-13 | Sms Group Gmbh | Tool changeover system and method |
CN110227740A (en) * | 2019-07-25 | 2019-09-13 | 济南艺高数控机械有限公司 | Quick roll-changing device |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007061027A1 (en) | 2006-12-28 | 2008-07-03 | Sms Demag Ag | Method for deploying set of working rolls from frame with locomotive arranged in roll changing hole under plant floor, involves coupling used set of working rolls on locomotive |
CN101879527B (en) * | 2009-05-07 | 2011-12-07 | 鞍钢股份有限公司 | Precise rolling work roll fracture handling method |
DE102009060642A1 (en) * | 2009-07-07 | 2011-01-13 | Sms Siemag Ag | 4-roll - / - rolls / 18HS roll rolling mill in cassette construction |
CN102051700B (en) * | 2009-10-28 | 2012-01-25 | 中国石油化工股份有限公司 | On-line replacing method for extrusion roll of fiber spinning traction feeding machine |
DE102010033753A1 (en) * | 2010-06-04 | 2011-12-08 | Sms Siemag Ag | Device for cleaning and drying rolling stands |
CN105414197B (en) * | 2015-12-14 | 2018-02-23 | 安徽楚江特钢有限公司 | A kind of milling train with backup roll change mechanism |
CN105382029B (en) * | 2015-12-14 | 2018-02-23 | 安徽楚江特钢有限公司 | A kind of backup roll change mechanism of milling train |
CN105537277B (en) * | 2015-12-14 | 2018-02-23 | 安徽楚江特钢有限公司 | A kind of backup roll change method of milling train |
FR3050128B1 (en) * | 2016-04-18 | 2018-09-07 | Fives Dms | METHOD FOR CHANGING CYLINDERS OF A ROLLING MILL |
EP3610960B1 (en) | 2017-06-16 | 2022-08-10 | Primetals Technologies Japan, Ltd. | Roll changing device |
DE102018210889A1 (en) | 2018-07-03 | 2020-01-23 | Sms Group Gmbh | Method and device for changing support rolls on a roll stand |
DE202018003699U1 (en) | 2018-08-09 | 2019-11-14 | Sms Group Gmbh | Device for changing support rolls on a roll stand |
EP3851217B1 (en) * | 2020-01-15 | 2022-07-13 | Primetals Technologies Germany GmbH | Improved roll model adaptation |
CN112062039A (en) * | 2020-09-24 | 2020-12-11 | 桂林橡胶设计院有限公司 | Frock is changed to roller shell of calender |
Citations (6)
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US3583195A (en) * | 1969-01-24 | 1971-06-08 | Gulf & Western Ind Prod Co | Roll changing apparatus |
US3699796A (en) * | 1970-11-30 | 1972-10-24 | Blaw Knox Co | Work roll changers |
US4251180A (en) * | 1976-12-03 | 1981-02-17 | Sack Gmbh | Roll-changing apparatus |
US4552007A (en) * | 1983-06-09 | 1985-11-12 | Pomini Farrel S.P.A. | Device for replacing the rolls of rolling stands |
US4627261A (en) * | 1984-03-14 | 1986-12-09 | Sms Schloemann-Siemag Ag | Roll stand with axially shiftable working rolls |
US6098439A (en) * | 1997-10-10 | 2000-08-08 | Kvaerner Metals Clecim | Device for changing the rolls and/or the intermediate rolls in a roll stand and storage rack for such a device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS599241B2 (en) * | 1976-06-02 | 1984-03-01 | 株式会社日立製作所 | Roll changing device for rolling mill |
JPS5849329B2 (en) * | 1978-07-10 | 1983-11-04 | 株式会社日立製作所 | Roll changing device for rolling mill |
JPS5785605A (en) * | 1980-11-14 | 1982-05-28 | Hitachi Ltd | Rearranging device for roll |
DE3930125C2 (en) * | 1989-09-09 | 1997-02-20 | Schloemann Siemag Ag | Convertible mill stand |
CN1358452A (en) * | 2000-12-13 | 2002-07-17 | 谭振平 | Inner seasoned bean products |
-
2001
- 2001-08-06 DE DE10138588A patent/DE10138588A1/en not_active Withdrawn
-
2002
- 2002-07-26 US US10/485,974 patent/US20050000263A1/en not_active Abandoned
- 2002-07-26 RU RU2004106601/02A patent/RU2004106601A/en not_active Application Discontinuation
- 2002-07-26 EP EP02754458A patent/EP1414598A1/en not_active Withdrawn
- 2002-07-26 WO PCT/DE2002/002809 patent/WO2003015949A1/en not_active Application Discontinuation
- 2002-07-26 JP JP2003520494A patent/JP2004538148A/en active Pending
- 2002-07-26 CN CNA028069722A patent/CN1498141A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3583195A (en) * | 1969-01-24 | 1971-06-08 | Gulf & Western Ind Prod Co | Roll changing apparatus |
US3699796A (en) * | 1970-11-30 | 1972-10-24 | Blaw Knox Co | Work roll changers |
US4251180A (en) * | 1976-12-03 | 1981-02-17 | Sack Gmbh | Roll-changing apparatus |
US4552007A (en) * | 1983-06-09 | 1985-11-12 | Pomini Farrel S.P.A. | Device for replacing the rolls of rolling stands |
US4627261A (en) * | 1984-03-14 | 1986-12-09 | Sms Schloemann-Siemag Ag | Roll stand with axially shiftable working rolls |
US6098439A (en) * | 1997-10-10 | 2000-08-08 | Kvaerner Metals Clecim | Device for changing the rolls and/or the intermediate rolls in a roll stand and storage rack for such a device |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7698923B2 (en) | 2004-02-18 | 2010-04-20 | Sms Siemag Aktiengesellschaft | Method of and device for exchanging sets of rolls |
US20090165522A1 (en) * | 2005-11-25 | 2009-07-02 | Siemens Vai Mental Technologies Sas | Method of Managing Cylinders in a Rolling Facility and Installation for Implementing Same |
US8210013B2 (en) * | 2005-11-25 | 2012-07-03 | Siemens Vai Metals Technologies Sas | Method of managing cylinders in a rolling facility and installation for implementing same |
US8522590B2 (en) | 2006-01-09 | 2013-09-03 | Sms Siemag Aktiengesellschaft | Method and device for changing rolls |
US20090044588A1 (en) * | 2006-01-09 | 2009-02-19 | Gerhard Blecher | Method and Device for Changing Rolls |
US8555688B2 (en) | 2006-01-09 | 2013-10-15 | Sms Siemag Aktiengesellschaft | Method and device for changing rolls |
US8511127B2 (en) | 2006-01-09 | 2013-08-20 | Sms Siemag Aktiengesellschaft | Method and device for changing rolls |
US20100175239A1 (en) * | 2007-06-06 | 2010-07-15 | Goeggel Tobias | System for changing a roller |
US8459082B2 (en) | 2007-06-06 | 2013-06-11 | Siemens Aktiengesellschaft | System for changing a roller |
US9061334B2 (en) | 2009-08-14 | 2015-06-23 | Sms Siemag Aktiengesellschaft | Device for handling and/or transporting rolls of a roll stand |
US20170100757A1 (en) * | 2014-02-11 | 2017-04-13 | Sms Group Gmbh | Tool changeover system and method |
US10821490B2 (en) * | 2014-02-11 | 2020-11-03 | Sms Group Gmbh | Tool changeover system and method |
CN110227740A (en) * | 2019-07-25 | 2019-09-13 | 济南艺高数控机械有限公司 | Quick roll-changing device |
Also Published As
Publication number | Publication date |
---|---|
DE10138588A1 (en) | 2003-02-20 |
WO2003015949A1 (en) | 2003-02-27 |
JP2004538148A (en) | 2004-12-24 |
EP1414598A1 (en) | 2004-05-06 |
RU2004106601A (en) | 2005-06-10 |
CN1498141A (en) | 2004-05-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SMS DEMAG AG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WITTKOPF, REINHARD;REEL/FRAME:015660/0720 Effective date: 20030912 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |