EP3883703A1 - Cage de laminoir à changement rapide - Google Patents
Cage de laminoir à changement rapideInfo
- Publication number
- EP3883703A1 EP3883703A1 EP19809013.6A EP19809013A EP3883703A1 EP 3883703 A1 EP3883703 A1 EP 3883703A1 EP 19809013 A EP19809013 A EP 19809013A EP 3883703 A1 EP3883703 A1 EP 3883703A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll stand
- cable
- rolling
- maintenance
- media
- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 105
- 238000012423 maintenance Methods 0.000 claims abstract description 51
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 230000032258 transport Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 description 22
- 238000010168 coupling process Methods 0.000 description 22
- 238000005859 coupling reaction Methods 0.000 description 22
- 230000033001 locomotion Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000006163 transport media Substances 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
- B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/08—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills
- B21B17/10—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills in a continuous process
Definitions
- the invention relates to an interchangeable roll stand for a rolling mill, preferably for rolling cylindrical rolled goods, such as bars, seamless tubes and / or wires, which can be moved along a maintenance direction between a working position and a maintenance position.
- WO 2017/068533 A1 describes a rolling mill with a first section which has a plurality of roll stands and is set up for rolling via a mandrel introduced into the tube, and a second section which has a plurality of roll stands and is set up for rolling without a mandrel.
- the roll stands each have three rolls.
- Rolling mills for rolling metallic bars and wires with a plurality of rolling stands arranged on a rolling line are also described, for example, in DE 38 30 101 A1, DE 39 40 736 A1 and DE 100 15 285 A1.
- All or some of the rolling stands on a rolling mill can be interchangeably set up to service them outside the rolling mill.
- a change in the dimensions to be rolled for example if a roll stand has to be equipped with rolls of modified caliber cross sections, also requires the relevant ones to be moved out Roll stands from the rolling mill or is at least considerably facilitated thereby. This applies in particular to the last rolling stands, as seen in the rolling direction, since these may have to cover a wide range of products as “finishing stands”. Frequent changes in dimensions are the rule here.
- Due to the interchangeability of rolling stands rolling operations can also be maintained, while rolling stands outside the rolling mill are prepared for their use. In this way, interruptions in the rolling operation are kept to a minimum. According to DE 100 15 285 A1 cited above, rolling stands are moved for this purpose out of and into the rolling mill via stand changing carriages
- media couplings are prone to wear and error. Repeated coupling of the contacts or needles on the media couplings can lead to contact problems; for example, the needles can bend, dirt and liquids can get caught in the media couplings and the like. This can lead to electrical faults or dropouts during operation.
- Robust media couplings that are sealed against external influences, especially for hydraulic applications, are large and expensive. Eliminating any flow resistance also requires generous dimensions.
- the media couplings are often difficult to access if, for example, they are arranged below the coupling between the gear and the exchange unit of the roll stand. Due to the separation of the media lines, the roll stands outside the rolling line are also electrically and hydraulically without a connection.
- the exchangeable roll stand according to the invention is part of a rolling mill or is designed for such.
- the rolling mill is preferably set up for rolling cylindrical rolled goods, such as bars, seamless tubes and / or wires.
- the roll stand preferably has at least two rolls.
- the rollers are preferably arranged symmetrically around the cylindrical rolling stock in order to exert a rolling force on the outer circumference of the rolling stock.
- the rolling mill preferably has a plurality of interchangeable roll stands.
- the rolling stock is transported through the rolling system along the rolling direction in a way referred to below as the "rolling line".
- the exchangeable roll stand can be moved between a working position and a maintenance position along at least one direction, which is hereinafter referred to as the "maintenance direction".
- the working position is accordingly on the rolling line, the rolling stand being arranged in the working position such that a rolling stock which is transported along the rolling line can be rolled by the rolls of the rolling stand.
- the maintenance position is outside the rolling line. Can in the maintenance position for example, maintenance work on the roll stand.
- a change in the dimensions to be rolled, for example if the roll stand is to be equipped with rolls of changed caliber cross sections, requires the relevant roll stand to be moved out of the rolling line or is at least considerably facilitated thereby.
- the roll stand has at least one media line, which transports a medium used for the operation of the roll stand, preferably electricity and / or a fluid.
- media includes, for example, electricity for the power supply of electrical actuators of the roll stand and / or for the exchange of sensor signals, fluids such as oil and / or water, for the supply of hydraulic actuators, for lubrication, cooling and the like.
- the roll stand also has a cable towing device which is set up in such a way that the roll stand can be moved along the maintenance direction by the distance between the working position and the maintenance position without having to separate the media line from the roll stand.
- the cable towing device enables the rolling stand to be transferred from the working position on the rolling line to the maintenance position without the use of media couplings. If the roll stand has a media coupling, the media line can remain coupled for maintenance, an exchange of the roll stand and the like, as a result of which its durability is improved.
- the electrical and / or hydraulic contacts are protected, none can Contamination, oil and dirt enter the media coupling, which improves the reliability of the roll stand both during commissioning and during operation. In this way, potential sources of error are eliminated by the cable towing device.
- the electrical and / or hydraulic and / or other functions are also available in the maintenance position of the roll stand.
- the maintenance direction is preferably essentially perpendicular to the rolling line, as a result of which a space-saving entry and exit of the rolling stand into and out of the rolling line can be implemented in a technically simple manner.
- the rolling line is clearly defined not only by the rolling mill, but also by the structure of the rolling stand itself, in particular by the position of the rolls.
- designations of the spatial relationship, such as “above”, “below”, “horizontally” etc. are clearly defined by the usual arrangement of a rolling mill and its rolling stands.
- the roll stand is preferably located on a drag plate, for example firmly connected, which can be moved in the horizontal plane at least along the maintenance direction.
- the drag plate is a plate-shaped or frame-shaped carrier that supports the rolling stand in a movable manner.
- the cable towing device In the working position of the roll stand, the cable towing device is preferably essentially below the towing plate, for example in a shaft provided for this purpose. For reasons of space, the cable towing device can be installed in particular below the floor of the floor.
- the shaft preferably extends essentially along the rolling line. In this case, the relevant section of the shaft is at least partially covered by the drag plate in the working position of the roll stand. Outside the working position, the shaft can also be covered, for example by another drag plate or by a protective plate.
- the drive motor of the roll stand can be mounted on the drag plate or coupled to the foundation, for example via a shaft / curved tooth coupling.
- the cable towing device preferably has a cable towing system, hereinafter referred to as "cable towing system in the direction of maintenance", which has a guide frame and at least one cable drag chain which can be unrolled on the guide frame.
- the cable drag chain is preferably constructed from several chain links which are pivotally connected to one another.
- the chain links have receiving sections which hold and guide the media line, as a result of which it follows the winding and unwinding movement of the cable drag chain in a well-defined manner, without being kinked or tangled.
- the deflection radii to which the media line is exposed to a maximum are determined by the dimensioning and nature of the chain links and / or by the nature of the cables running therein.
- the roll stand can also be moved along an alternating direction that differs from the maintenance direction, for example perpendicular to it, the cable towing device being set up in such a way that the roll stand can be moved along the maintenance direction and the alternating direction by the desired distance, without the To disconnect media line from the roll stand.
- the ability to move along a second direction, referred to here as the “alternating direction”, enables or simplifies the exchange of roll stands.
- the cable towing device preferably has a further cable towing system which is referred to as "cable towing system in the alternating direction". Like the cable towing system, this can also have a guide frame in the maintenance direction and at least one cable drag chain that can be unrolled on the guide frame.
- the cable drag chain of the cable drag system in the alternating direction is preferably made of several Chain links constructed that are pivotally connected to each other.
- the chain links have receiving sections which hold and guide the media line, as a result of which it follows the winding and unwinding movement of the cable drag chain in a well-defined manner, without being kinked or tangled.
- the deflection radii to which the media line is exposed to a maximum are determined by the dimensions and nature of the chain links and / or by the nature of the cables running therein.
- guide frame of the cable towing system is preferably firmly anchored in the alternating direction, for example in the shaft below the
- the guide frame of the cable towing system is mounted so that it can be moved in the maintenance direction, preferably in the direction of the rolling line, in order to compensate for movement of the roll stand along the alternating direction.
- the roll stand preferably has at least two media lines, one media line being an oil supply line and the other an electrical line, preferably a power cable. By considering one or more electrical lines in the cable towing device, potentially unsafe interruptions in the power supply can be prevented.
- the rolling stand can be "offline", i.e. except for
- the one or more media lines are preferably permanently connected to a section of the roll stand, whereby "permanent” does not mean here that the media lines are in principle inseparably connected to the roll stand, but that there are no media couplings necessary for frequent disconnection and release Media lines are designed, are available.
- the cable towing device described is also useful in connection with installed media couplings, since in this case the wear on the media couplings is reduced and the service life of the same can be extended. Further advantages and features of the present invention are evident from the following description of preferred exemplary embodiments.
- the features described there can be implemented on their own or in combination with one or more of the features set out above, insofar as the features do not contradict each other.
- the following description of the preferred exemplary embodiments takes place with reference to the accompanying drawing.
- FIG. 1 is a three-dimensional view, which shows sections of a roll stand outside the rolling train of a wire rolling mill, and the connection to a cable drag device. Detailed description of preferred embodiments
- FIG. 1 is a three-dimensional view, showing sections of a roll stand 10 outside the rolling train of a rolling mill 1, and the connection to a cable drag device 20.
- the rolling mill 1 is a wire rolling mill, but it can also be a mill for rolling any cylindrical rolling stock, such as pipes or bars.
- the technical details of the roll stand 10, in particular the construction and storage of the rolls, positioning motors, etc., are not shown in FIG. 1, since it is less about the rolling function, instead about the transport of the roll stand 10 into and out of the rolling line and whose media connection goes.
- the rolling stand 10 is located on a movable drag plate 11.
- the drag plate 11 can be moved via rollers, a rail system or in another way in a horizontal plane, in a direction Wa at an angle, preferably perpendicular, to the rolling line.
- the direction Wa is referred to herein as the "maintenance direction" because it indicates the direction from the rolling line to a maintenance position (and back).
- the roll stand 10 is located on such a maintenance position outside the rolling line on which the roll stand 10 can be serviced, rolls and the like can be exchanged.
- a rolling stand 10 ' is shown in the background of FIG. 1, which is in the working position, ie on the rolling line.
- a drive motor of the roll stand 10 can be mounted on the drag plate 11.
- the drive motor can also be coupled to the foundation, for example via a shaft / curved tooth coupling.
- the drag plate 11 can preferably be moved not only in the maintenance direction Wa, but also outside the rolling line along a further direction We, preferably parallel to the rolling line. This further direction is referred to herein as the "alternating direction". The movability along the alternating direction We enables or at least simplifies the exchange of the roll stand 10.
- the roll stand 10 is connected to media lines 12 which transport media for the operation of the roll stand 10.
- media includes, for example, electricity for the power supply of electrical actuators and / or for the exchange of sensor signals, fluids, such as oil and / or water, for the supply of hydraulic actuators, for lubrication, cooling and the like.
- the media lines 12 are preferably permanently connected to the roll stand 10, where “permanent” does not mean here that the media lines 12 are in principle inseparably connected to the roll stand 10, but rather that no media couplings are necessary for frequent disconnection and loosening of the media lines 12 are designed, exist.
- the cable towing device 20 described below is also in connection with installed media couplings useful because in this case the wear on the media couplings is reduced and the service life of the media couplings can be extended.
- the media lines 12 are held and guided by the cable towing device 20.
- the media lines 12 and the cable towing device 20 are set up in such a way that the roll stand 10 can be moved along the maintenance direction Wa and possibly the alternating direction We by the required distance without the media lines 12 being separable from the roll stand 10.
- the mobility of the roll stand 10 over the drag plate 11 along the directions of motion Wa We must be able to be compensated for by the cable drag device 20.
- the cable towing device 20 is preferably located below the hall floor 13 in a shaft 14 provided for this purpose, which extends below the rolling line essentially along the same.
- the relevant section of the shaft 14 is covered by the drag plate 11. Outside the working position, the shaft 14 can also be covered, for example by another drag plate 11 or by a protective plate.
- the cable towing device 20 has a first cable towing system 30, also referred to as “cable towing system in the alternating direction”, and a second cable towing system 40, also referred to as “cable towing system in the maintenance direction", which correspondingly for realizing the movement along the alternating direction We and Maintenance direction Wa are set up.
- the first cable drag system 30 has a guide frame 31 and one or more cable drag chains 32.
- the guide frame 31 is firmly anchored in the shaft 14, while the cable drag chain 32 can be unrolled on the guide frame 31, ie along the alternating direction We.
- the cable drag chain 32 has a plurality of chain links 33, which are similar to a bicycle chain movable, in particular pivotable, are interconnected.
- the chain links 33 have receiving sections 34 with openings through which the media lines 12 pass. In this way, the media lines 12 are held and guided by the cable drag chain 32, as a result of which they follow the winding and unwinding movement of the same in a well-defined manner, without being kinked or tangled.
- the deflection radii to which the media lines 12 are exposed to a maximum are determined by the dimensioning and nature of the chain links 33 and / or by the nature of the cables running therein.
- the second cable towing system 40 is constructed similarly to the first cable towing system 30, the unwinding direction of the cable drag chain 42 being perpendicular to the unwinding direction of the cable drag chain 32 in order to realize the movement along the maintenance direction Wa.
- the second cable drag system 40 has a guide frame 41 and one or more cable drag chains 42.
- the guide frame 41 is movably mounted in the shaft 14 in order to compensate for a movement of the roll stand 10 along the alternating direction We.
- the cable drag chain 42 can be unrolled on the guide frame 41, ie along the maintenance direction Wa.
- the cable drag chain 42 has, as in the case of the first cable drag system 30, a plurality of chain links 43 which, like a bicycle chain, are connected to one another so as to be movable, in particular pivotable. Furthermore, the chain links 43 have receiving sections 44 with openings through which the media lines 12 pass. In this way, the media lines 12 are held and guided by the cable drag chain 42, as a result of which they follow the winding and unwinding movement of the same in a well-defined manner without being kinked or tangled.
- the deflection radii to which the media lines 12 are exposed to a maximum are determined by the dimensioning and nature of the chain links 43 and / or by the nature of the cables running therein.
- the cable towing systems 30 and 40 can also be implemented in a technically different way.
- the guide frames 31, 41 can interact with corresponding slides, which the Hold / guide media lines 12 and are movably supported by means of a slide rail system or rollers.
- the roll stand 10 can be transferred from the working position on the rolling line into a maintenance or replacement position without media couplings. If the roll stand 10 has media couplings, the media lines can remain coupled for maintenance or an exchange of the roll stand 10, whereby their durability is improved. Any electrical and hydraulic contacts are not impaired, no contaminants, oil and dirt penetrate into the media couplings, as a result of which the reliability of the roll stand 10 is improved both during commissioning and during operation. Potential sources of error can be eliminated in this way.
- the electrical, hydraulic and / or further functions are also available in the maintenance or changing position of the roll stand 10. This makes it easier, for example, to preheat the roll stand in the offline position. Sensors, such as rotary encoders, pressure transmitters, thermometers etc., actuators and other devices of the roll stand 10 do not have to be disconnected from the network during maintenance or during the change, which simplifies their recommissioning.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018219874.8A DE102018219874B4 (de) | 2018-11-20 | 2018-11-20 | Schnellwechselbares Walzgerüst |
PCT/EP2019/081737 WO2020104421A1 (fr) | 2018-11-20 | 2019-11-19 | Cage de laminoir à changement rapide |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3883703A1 true EP3883703A1 (fr) | 2021-09-29 |
EP3883703B1 EP3883703B1 (fr) | 2022-10-19 |
Family
ID=68655510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19809013.6A Active EP3883703B1 (fr) | 2018-11-20 | 2019-11-19 | Cage de laminoir à changement rapide |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3883703B1 (fr) |
DE (1) | DE102018219874B4 (fr) |
WO (1) | WO2020104421A1 (fr) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3830101A1 (de) | 1988-09-05 | 1990-03-15 | Schloemann Siemag Ag | Verfahren zum betrieb eines stabstahlwalzwerkes mit auf einer walzlinie angeordneter kuehlstrecke zum thermomechanischen fertigwalzen und stabstahlwalzwerk zur durchfuehrung des verfahrens |
DE3940736A1 (de) | 1989-12-09 | 1991-06-13 | Schloemann Siemag Ag | Hochleistungs-stabstahl/drahtstrasse |
DE10015285C2 (de) | 2000-03-28 | 2003-11-27 | Kocks Technik | Walzstraße zum Walzen von metallischen Rohren, Stäben oder Drähten |
DE20016169U1 (de) * | 2000-09-19 | 2001-03-15 | Sms Demag Ag | Medienschiene |
DE10103686A1 (de) * | 2001-01-27 | 2002-08-01 | Sms Demag Ag | Walzstraße mit gestaffelten Gerüsten, insbesondere Tandemwalzanlage |
DE10108418A1 (de) * | 2001-02-21 | 2002-08-29 | Sms Demag Ag | Anordnung der über Kuppeleinrichtungen mit Medienanschlüssen der Ständer von Walzgerüsten verbindbaren Medienzuleitungen und Verbindungsleitungen |
US7718894B2 (en) * | 2003-10-15 | 2010-05-18 | Igus Gmbh | Line guide device |
DE102008049246B4 (de) * | 2008-09-26 | 2014-12-31 | Tsubaki Kabelschlepp GmbH | Leitungsführungseinrichtung sowie Verfahren zum Herstellen eines Elementes einer Leitungsführungseinrichtung |
DE102009060237A1 (de) * | 2009-12-23 | 2011-06-30 | SMS Siemag AG, 40237 | Stauchwalzwerk mit einer Antriebseinheit |
JP5913883B2 (ja) * | 2011-09-26 | 2016-04-27 | 株式会社デンソーウェーブ | ケーブル保護案内部材の取付構造 |
ITUB20155314A1 (it) | 2015-10-23 | 2017-04-23 | Danieli Off Mecc | Laminatoio multigabbia per corpi astiformi comprendente gabbie a tre rulli motorizzati |
-
2018
- 2018-11-20 DE DE102018219874.8A patent/DE102018219874B4/de active Active
-
2019
- 2019-11-19 EP EP19809013.6A patent/EP3883703B1/fr active Active
- 2019-11-19 WO PCT/EP2019/081737 patent/WO2020104421A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
DE102018219874A1 (de) | 2020-05-20 |
DE102018219874B4 (de) | 2020-08-20 |
EP3883703B1 (fr) | 2022-10-19 |
WO2020104421A1 (fr) | 2020-05-28 |
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