EP3946772A1 - Method for preventing shape changes in metal coils, in particualr for preventing a collapsing of newly wound hot coils - Google Patents
Method for preventing shape changes in metal coils, in particualr for preventing a collapsing of newly wound hot coilsInfo
- Publication number
- EP3946772A1 EP3946772A1 EP20700748.5A EP20700748A EP3946772A1 EP 3946772 A1 EP3946772 A1 EP 3946772A1 EP 20700748 A EP20700748 A EP 20700748A EP 3946772 A1 EP3946772 A1 EP 3946772A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotation
- metal collar
- collar
- metal
- coil
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 131
- 239000002184 metal Substances 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title claims abstract description 69
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 230000002441 reversible effect Effects 0.000 claims description 25
- 238000004804 winding Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 6
- 229910001566 austenite Inorganic materials 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 229910000677 High-carbon steel Inorganic materials 0.000 claims description 3
- 230000032258 transport Effects 0.000 description 80
- 230000008569 process Effects 0.000 description 30
- 238000012545 processing Methods 0.000 description 13
- 238000005098 hot rolling Methods 0.000 description 11
- 238000005096 rolling process Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000009466 transformation Effects 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- 238000003860 storage Methods 0.000 description 8
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 6
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 238000012805 post-processing Methods 0.000 description 5
- 239000002775 capsule Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000003797 telogen phase Effects 0.000 description 2
- 241001443588 Cottus gobio Species 0.000 description 1
- 229910000922 High-strength low-alloy steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/20—Storage arrangements; Piling or unpiling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
- B21C51/005—Marking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F3/00—Coiling wire into particular forms
- B21F3/02—Coiling wire into particular forms helically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/18—Methods or apparatus in which packages rotate
- B65H49/20—Package-supporting devices
- B65H49/24—Rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/18—Methods or apparatus in which packages rotate
- B65H49/34—Arrangements for effecting positive rotation of packages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/33—Modifying, selecting, changing orientation
- B65H2301/332—Turning, overturning
- B65H2301/3322—Turning, overturning according to a determined angle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
Definitions
- the invention relates to a method for avoiding changes in shape in metal bonds, in particular for avoiding a collapse of freshly wound hot bonds, which or which collapse, for example, during the production of
- Steel products such as metal strips, can occur in hot rolling mills or hot rolling mills.
- a phase transformation of the steel product can occur not only in a cooling section of a hot rolling mill, but also - following the cooling section - in a reel (, in which the steel / metal strip following a rolling step / rolling process - freshly wound - is wound into a hot coil or coil), during a transport - the freshly wound and drawn off the reel (and possibly already tied) hot coil - to a coil store or in a bundle warehouse of a hot rolling mill (in which the freshly wound hot bundle is stored) occur ("delayed phase transition lung "), especially for those grades that are subsequently still cold-rolled.
- Phase changes in the product such as the metal bundle or the freshly wound hot bundle, in turn lead to local volume changes and shape changes / deviations ("collapse"), which are undesirable and / or which lead to serious problems, especially when transporting the bundle and in further processing plants
- a special form of this collapse in a steel product is what is known as "ovalization", in which - here in a metal / hot coil or coil - a change in shape / deviation of an initial (approximately) round shape to an oval shape he follows.
- the delayed phase transformation and so on can occur, especially during reeling or during coil transport where the metal band is present as a (wound) coil or coil Change in volume or shape of the product or bundle / coil, d. H. the (undesired) collapse or ovalization.
- a device for the transport of very heavy metal strip coils produced following rolling processes by winding up rolled metal strips.
- This device comprises a set of pallets in a circulation system and roller tables that convey these further.
- a pallet consists of spaced-apart L jossträ ger and a bridging collar support saddle, the ge opposite, has a support bracket including supports.
- the pallet for transporting a bundle is designed with a vertical and horizontal deformation that compensates for vertical and horizontal deformation at least its longitudinal members.
- EP 2 629 899 B1 also describes a device for transporting metal coils. This provides a "solid" collar / support saddle provided with heat shields on the device, on which the metal collar is placed during transport.
- KR 101 036 318 B1 discloses a relocating device for collars, by means of which a change in shape (ovalization) of the collars can be reversed.
- a first conveyor belt with support devices for individual bundles transports them one behind the other to a transfer station, at which an individual bundle is picked up by a vertically height-adjustable and laterally movable pallet truck and transferred to a second, similar conveyor belt.
- the federal government in question can be temporarily placed on a bullhead of rotatably driven rollers during the relocation process from the lift truck, where it is rotated by 90 ° so that the ovalization is compensated.
- the disclosed invention can compensate for an existing deformation of the collar, because the turning process takes place only at one point, it is not possible to prevent a disadvantageous deformation from the outset or to counteract such during the entire transport process.
- KR 2012 012518 A discloses a transport trolley that can be moved along one direction and has four support rollers for receiving a hot bundle.
- a transport trolley For the purpose of rotating a federal located on the Trans port trolley at least two axially opposite support rollers are each connected to a drive attached to the trolley, with the drives must be synchronized.
- braking devices attached to the trolley are provided.
- KR 101 036 318 Bl suggests turning the collar on the transport trolley by 90 °. It is true that with the disclosed transport car an ovalization of a federal be counteracted, but the rotary drives and brakes require an increased dead weight and increased construction and energy expenditure for a bundle transport.
- KR 101 420 629 B1 proposes a spreading device in combination with a stationary coil depositing device with rotatably driven support rollers on which an oval-shaped flange is first deposited.
- the spreader is inserted into the collar eye in a horizontal orientation, then both parts are rotated 90 °.
- the oval collar sags due to its own weight in the vertical direction until the spreader blocks any further sagging.
- Subsequent cooling stabilizes the form-corrected collar so that the spreader collapses and can be removed again from the collar eye.
- JP 2010 207836 A proposes a transport trolley with rotationally driven support rollers to prevent changes in shape of a collar with increased temperature, the collar being rotated continuously during the transport process on the transport cart at at least 1 revolution per minute and the rotary movement at least 30 seconds Transfer of the federal government to the reel of the subsequent processing station is started. Although this can avoid a deformation of the collar, the continuous continuous rotation of the collar leads - especially for longer ones
- the invention is based on the object of providing a method with which problems in the production Development of metal bundles, in particular problems with freshly wound (warm) bundles, can be avoided or, in particular, a collapse or ovalization can be avoided in freshly wound (warm) bundles.
- problems in the production Development of metal bundles in particular problems with freshly wound (warm) bundles, can be avoided or, in particular, a collapse or ovalization can be avoided in freshly wound (warm) bundles.
- the disadvantages of known solutions should be avoided and federal movements should be used as sparingly as possible in order to prevent unnecessary damage to the surface of the federal government.
- a metal bundle in particular a freshly wound hot bundle, in particular made of a high-carbon steel, a press-hardening steel, a multi-phase steel or an Advanced High Strength Steel Grade (AHSS) steel , about its longitudinal axis intermittently in a first direction of rotation and then rotated back in a second opposite direction of rotation or is rotated further in the first direction of rotation.
- AHSS Advanced High Strength Steel Grade
- Metallbund also usually just “coil” for short denotes a metal product produced by winding a metal strip.
- “Freshly wound” may refer to a metal collar which is produced by winding a rolled metal strip after a rolling process.
- “Warmbund” can denote a metal collar made of a hot-rolled metal strip.
- the forward rotation, the interruption / pause and the (close) reverse rotation or the further rotation are also often referred to in the following simply as (one) "cycle".
- This "conscious” or “consciously inserted” pause is such a - targeted - pause (hereinafter also referred to as “cycle pause” for short) inner-cyclical pause "), which can be achieved by reversing the direction of rotation (when turning backwards and forwards) by simply switching between the directions of rotation, or by simply (briefly), particularly unwanted, stagnation between the two directions - and the further rotation goes out.
- a pause duration / length is specifically selected and / or set (in contrast to a mere "switching of the directions of rotation" or an unwanted stall), in particular depending on one or more specific ones
- the metal bundle or the freshly wound warm bundle expediently remains in place Rest, at least there is no rotational manipulation of the metal / hot collar.
- the duration of the pause (or duration of rest / length of the rest phase) between the forward and backward rotation or between the forward and further rotation can be selected depending on a material of the metal collar, in particular the freshly wound warm collar (, ie thus consciously - depending on the material - chosen / adjusted).
- a parameter determining the duration of the break or the duration / phase of rest can also include a size, a circumference, a diameter, a weight and / or a temperature of the metal bundle, in particular the freshly wound warm bundle, and / or a thickness of the metal bundle / Be a hot bundle of wound metal tape.
- Several parameters or several parameters in combination can also be used to determine the pause duration or rest period / phase between the forward and backward rotation or the forward and further rotation or can be used when defining the pause duration or rest period / phase can be consulted or used.
- the pause duration or the rest duration / phase between the forward and backward rotation or the forward and further rotation of the metal coil, in particular the freshly wound warm coil can be in a range (min./max ) from approx. 50 s to 300 s, in particular 100 s to 300 s, further in particular from approx. 150 s to 250 s, or be (set).
- an appropriate pause of approx. 200 s can also be provided.
- the method is based on the knowledge gained that the cycle, i. H. the intermittent back and forth rotation or back and forth rotation of the metal / hot collar ensures that the phase transformation in the metal collar or freshly wound warm collar does not have any significant effect on the shape of the collar.
- This fact is based on the fact that the phase transformations mentioned at the beginning and the associated changes in volume do not lead to continuous changes / deviations in shape of the covenant in question, but rather occur in discrete steps, for example when a critical value of the static friction between adjacent turns of the federal government is undercut. In other words, the federal government slides piece by piece under its own weight, for example. A continuous change in the spatial alignment of the federal government to maintain the original winding shape is therefore not absolutely necessary.
- the metal collar in particular the freshly wound warm collar, is rotated back and forth several times or rotated further several times, for example two, three, four or even more times, which in particular for one expression or Maintaining a round shape of the metal / hot collar is beneficial. In short, several cycles are run for the metal / hot coil.
- the cycle pause or inter-cycle pause can according to the corresponding parameters such as the cycle pause or inner-cyclical pause, such as the material, size, circumference, diameter, weight and / or temperature of the Me tall / hot coil and / or the metal strip thickness of the metal / hot collar.
- the number of forward and backward rotations or the number of cycles as well as the number of further rotations can also be made dependent on one or more parameters, for example also on a material, a size, a Scope, a diameter, a weight and / or a temperature of the metal / hot collar and / or a metal strip thickness of the metal / hot collar.
- the "very first / initial" rotation (in the first direction of rotation) is preferably carried out against a winding direction of the metal collar or the freshly wound hot collar.
- an angle of rotation of the forward rotation and / or an angle of rotation of the (close) reverse rotation of the freshly wound hot coil and / or an angle of rotation of the further rotation depending on a material, a size, a circumference, a diameter, a Ge weight and / or a temperature of the metal bundle, in particular of the freshly wound hot bundle, and / or a metal strip thickness of the metal / hot bundle is / are set.
- angles of rotation can also be carried out here. Furthermore, it can also be provided that before the beginning of the “very first / initial” turn in the first direction of rotation, there is likewise a — conscious — pause or rest phase
- Pre-pause such as the "cycle pause” or “intra-cycle pause” (within a cycle) or the "cycle pause” or
- pre-pause can be based on the appropriate parameters such as the cycle / intra-cycle pause or cycle pause
- se / intermediate cycle pause such as the material, the size, the circumference, the diameter, the weight and / or the temperature of the metal / hot collar and / or the metal strip thickness of the metal / hot collar, can be determined.
- the metal bundle in particular the freshly wound hot bundle, is withdrawn from a reel and / or subjected to intermediate treatment before the first cycle or the "very first / initial” twist and / or after the "last" cycle or the "very last / final” (close) reverse rotation or "very last
- the process may take place between the withdrawal from the reel and the depositing in the collar store or between the reel and the collar store.
- the metal collar in particular the freshly wound warm collar, is sampled and / or strapped and / or weighed and / or marked and / or measured.
- the process is expediently carried out in the case of the metal / hot coil during / during a phase transformation of the metal / hot coil, in particular the phase transformation from austenite to ferrite.
- the method can also be expedient here for the method to be carried out for the metal / hot collar until the phase transformation of the metal / hot collar, in particular the phase transformation from austenite to ferrite, is complete.
- a certain follow-up of the process - "to be on the safe side" - can be carried out (during which the process is carried out beyond the end of the phase transition in the metal / hot coil) , a circumference, a diameter, a weight and / or a temperature of the metal bundle, in particular the freshly wound hot bundle, and / or a metal strip thickness of the metal / hot bundle can be set.
- a transport device - for the metal / hot bundle - for example a pallet or a transport trolley (such as a Modular Coil Shuttle (MCS) Car) or possibly a walking beam system (or in combination with a walking beam system) is provided - with a flange support having at least one first rotatable and a second rotatable transport roller, in particular wherein at least one or (the) two (or - in the case of even more rotatable transport rollers - all of the) rotatable transport rollers can be driven.
- MCS Modular Coil Shuttle
- This transport device can then, in particular when the transport rollers can be driven (or are driven), be used to carry out the method or its developments.
- Driven transport rollers can be implemented by (in the transport rollers) integrated drives / drive units, for example electric drives / motors (or hydraulic), or external (preferably mechanically) switchable / connectable drives / drive units.
- Rollers or transport rollers can have the recesses in the area of Binderbän so that the Binderbands do not leave any pressure on the metal / hot collar.
- a control which controls the drivable rollers or their drives in accordance with the method to be carried out.
- the control can - for given strip / collar parameters, such as in particular the material, the size, the circumference, the diameter, the weight and / or the temperature of the metal / hot collar and / or the metal strip thickness of the metal / hot collar, - Determine corresponding process parameters, such as, in particular, angle of rotation, speed of rotation, pause duration and / or direction of rotation - and control / carry out the process according to these.
- a transport system - for the metal / hot bundle - can be provided - with a transport device, for example a pallet or a transport trolley (such as a Modular Coil Shuttle (MCS) car), with a bundle support, in particular having at least one first rotatable and a second rotatable transport roller, as well as with a transport station, for example a floor rolling station, with a collar support having at least a first rotatable and a second rotatable transport roller, with at least one or (the) two (or - in the case of even more rotatable Transport rollers at the transport station - all of the) rotatable transport rollers can be driven.
- a transport device for example a pallet or a transport trolley (such as a Modular Coil Shuttle (MCS) car)
- MCS Modular Coil Shuttle
- This transport system can then be used to carry out the method or its further developments.
- the metal / hot bundle can then - for example in a kind of discharge station - be moved (temporarily) from the transport device to / into the transport station, where the process is carried out - and then (back) moved back into / on the transport device.
- the transport device can in particular serve to transport the metal / hot coil after it has been pulled from the reel to the bundle storage, or in particular from the reel to the discharge station and from there on to the bundle storage.
- control can again be provided which controls the drivable rollers or their drives in accordance with the method to be carried out.
- a metal bundle in particular a freshly wound warm bundle, moves continuously around its longitudinal axis in a first direction of rotation and in a second opposite direction of rotation is turned back, the back and forth turning more times takes place non-stop one after the other.
- the metal / hot coil is permanently turned back and forth without a break, i.e. without the cycle break / intra-cycle break and without the cycle break / inter-cycle break (between the rotations).
- the rotations such as the angle of rotation, and / or their control, apply accordingly to this further method.
- a metal coil in particular a freshly wound warm coil, during a transport process, in particular between pulling off a reel and a deposit in a flange store, is rotated without interruption about its longitudinal axis in one and the same direction of rotation, in particular in a winding-up direction of the metal collar.
- the metal / hot coil can be permanently, in particular slowly, for example at approx.> 5 min per revolution, in particular approx. 10 min per revolution, during the entire transport process between the reel and the flange storage or between the withdrawal from the reel and the Able conditions in the flange storage in one and the same direction, preferably in the winding direction, are rotated.
- FIG. 1 shows a pallet system for performing a coil / bundle rotation according to a first embodiment
- FIG. 2 shows an MCS system for carrying out a coil / bundle rotation according to a second embodiment
- 3 shows a discharge station with a floor rolling station for carrying out a coil / bundle rotation according to a third embodiment.
- FIGS. 1 to 3 show possibilities or realizations of how a collapse or ovalization in a freshly wound warm bundle 1 ("bundle” 1 or “coil” 1 for short) can be avoided.
- the embodiments each relate to a section from the processing sequence in the production of a metal strip in a hot rolling mill.
- the metal strips to be produced are - there is a trend in this regard - made of steels of new high, higher or very high strength steel grades, such as high carbon steels, press hardening steels, multi-phase steels or advanced high strength steel grade (AHSS) steels.
- new high, higher or very high strength steel grades such as high carbon steels, press hardening steels, multi-phase steels or advanced high strength steel grade (AHSS) steels.
- AHSS advanced high strength steel grade
- the metal strip wound on a reel 10 to form the coil 1 or coil 1 after a hot rolling process, i.e. the freshly wound hot coil 1 or coil 1 (which / which usually has a temperature of up to 850 ° C and a weight of up to 50 t), away from the winder or the reel 10 and to various processing stations (14, 15) who must be transported.
- the processing stations (14, 15) are the individual processing stations (14, 15) in the individual processing stations (14, 15) are the
- Coils 1 reworked, for example bound 15, marked, weighed 14, measured and / or inspected, before they are stored in a bundle store 16.
- a transport device 20 or a transport system 50 is required, which - in various versions - is to be described below.
- phase transformation in the metal strip also takes place during this transport process, which phase transformation in turn leads to undesired volume changes and shape changes / deviations ("collapse” / "ovalization") during the transport process Coil 1 leads.
- the coil 1 to be transported during the transport process - away from the reel 10 towards the flange storage 16 - possibly several times - intermittently (about its longitudinal axis 2) back 3 and ( is turned back) 4 (or alternatively further turned 17).
- Transport devices / systems described below are set up for such coil treatment / rotation 3, 4 (16, 17) - and can thus contribute to avoiding the coil 1 from collapsing or ovalizing.
- Pallet (circulating) system 30 (FIG 1) 1 shows a pallet 20 of a pallet circulation system 30, which pallet circulation system 30 transports coils 1 away from the reel 10 to the bundle store 16 by means of pallets 20 moved by pallet circulation vehicles on a conveyor line 31.
- the coils to be transported are loaded onto the respective pallet carriages along their longitudinal axis.
- a freshly wound hot coil 1 or the coil 1 is drawn off 11 from the reel 10 and placed on the pallet 20, as shown in FIG. 1.
- the pallet 20 is moved via the conveyor line 31 (possibly via the processing stations 14, 15) to the flange store 16 in which the
- Coil 1 is then deposited, as a result of which the coil 1 is or has been transported from the reel 10 to the coil store 16.
- the pallet 20 provides a collar support 21 in the form of a support saddle 24 on which the coil 1 to be transported is deposited or, as FIG. 1 shows, is deposited.
- This support saddle 24 has, as FIG. 1 also shows, two saddle supports 25, 26 arranged at a distance from one another, each of which preferably has a roller 22, 23 that can be driven by means of an integrated drive 27 (not visible).
- the two rollers 22, 23 forming the flange support 21 / flange saddle 24 can be moved horizontally and vertically, whereby the height and / or spacing of the rollers 22, 23 adjusted - and so the Bundle support 21 can be adapted to the coils 1 to be transported.
- the integrated drives 27 of the rollers 22, 23 carrying the coil 1 are activated by means of a control 29 so that the coil 1 deposited on them can be rotated about its longitudinal axis 2 - controlled -.
- the coil rotation 3, 4 (16, 17) takes place according to a predefinable cycle regime which - if necessary several times - provides an intermittent 3 and 4 (closed) reverse rotation 4 (or alternatively further rotation 17) ("cycle").
- the controller 29 determines the corresponding rotation parameters, such as the start of rotation, direction of rotation 5, 6, duration of a
- FIG. 2 shows a transport trolley 20, a “Modular Coil Shuttle (MCS) Car” (MSC for short) 20, by means of which coils 1 (transported over the conveyor line 31 away from the reel 10 to the flange storage 16 (and also rotated 3, 4, 17).
- MCS Modular Coil Shuttle
- a freshly wound hot coil 1 or the coil 1 is drawn off 11 from the reel 10 and placed on the MCS 20, as shown in FIG. light, filed.
- the MCS 20 is moved (if necessary via the processing stations 14, 15) to the coil storage 16, in which the coil 1 is then deposited, whereby the coil 1 is or has been transported from the reel 10 to the coil storage 16.
- the MCS 20 - corresponding to the pallet 20 (FIG 1) - provides a support saddle 24 (as a collar support 21) on which the coil 1 to be transported is deposited or, as FIG. 2 shows, is deposited.
- this support saddle 24 has two seat posts 25, 26 arranged at a distance from one another, each of which has a roller 22, 23 that can be driven by means of an integrated drive 27 (not visible).
- the two rollers 22, 23 forming the flange support 21 / flange saddle 24 can be moved horizontally and vertically, whereby the height and / or spacing of the rollers 22, 23 adjusted - and so the coil support 21 can be adapted to the coils 1 to be transported.
- the integrated drives 27 of the rollers 22, 23 carrying the coil 1 are activated by means of a controller 29 so that the coil 1 deposited on them can be rotated 3, 4, 17 about its longitudinal axis 2 - controlled -.
- the coil rotation 3, 4, 17 takes place according to a predefinable
- Cycle regime (cf. this in the case of the pallet circulation system 30), which - if necessary several times - provides an intermittent forward 3 and (closed) reverse rotation 4 or further rotation 17 ("cycle").
- the controller 29 determines the corresponding rotation parameters (see above for the pallet circulation system 30), such as start of rotation 3, 4, 17 angle of rotation 8, 9, 18 direction of rotation 5, 6, duration of a rotation 3, 4, 17 duration of pause between two rotations ,
- rollers 22, 23 can also be provided on the pallet 20 or the MCS 20, which can be provided by external , couplable drives 28 are driven.
- one or more stations can be provided along the transport path 31 or in connection with the transport path 31, which establish a mechanical connection with the Rol len 22, 23 and a rotation 3, 4, 17 of the rollers 22, 23 and thus the Apply coils 1.
- FIG. 3 shows a detail of a conveyor section 31 in a hot rolling mill for producing a metal strip.
- FIG. 3 shows, here coils 1 are drawn off from two reels 10 onto a transport carriage 20 and via a "circular route" 34 to post-processing or intermediate processing stations 14, 15
- Rotation regimes (see above) - can be rotated 3, 4, 17.
- Coils 1 moved to the floor rolling stations 51 are temporarily removed there from the transport trolley 20 and shifted to the respective floor rolling station 51, where they are rotated according to a certain rotation regime (see above). After the end of the rotation regime, the coils 1 are relocated back to the transport carriage 20 and transported on.
- the MCS 20 described above can also be used according to a rotation regime as follows (see FIGS. 1 to 3).
- the coil is here rotated back around its longitudinal axis 2 in the first direction of rotation 5 3 and without a break, ie without the "cycle pause” / “inner-cyclical break", in the second opposite direction of rotation 6, with the back 3 and the To turn back 4 several times without pause, ie without the "cycle pause” / "intermediate cycle pause", takes place one after the other.
- Regime parameters relating to this can be set:
- the MCS 20 described above can also be used according to a rotation regime as follows (see FIGS. 1 to 3).
- the coil is in an uninterrupted manner around its longitudinal axis 2 and the same direction of rotation 35 rotated 19 in the winding direction 7 of the coil 1.
- Rotation speed slow (for example at 10 min per revolution).
- Transport station floor rolling / floor turning station, discharge station
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- General Induction Heating (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19165076.1A EP3715003A1 (en) | 2019-03-26 | 2019-03-26 | Method for avoiding shape changes in metal coils, in particular for preventing collapse of freshly coiled warm coils |
PCT/EP2020/051402 WO2020192980A1 (en) | 2019-03-26 | 2020-01-21 | Method for preventing shape changes in metal coils, in particualr for preventing a collapsing of newly wound hot coils |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3946772A1 true EP3946772A1 (en) | 2022-02-09 |
EP3946772B1 EP3946772B1 (en) | 2023-03-22 |
Family
ID=65991554
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19165076.1A Withdrawn EP3715003A1 (en) | 2019-03-26 | 2019-03-26 | Method for avoiding shape changes in metal coils, in particular for preventing collapse of freshly coiled warm coils |
EP20700748.5A Active EP3946772B1 (en) | 2019-03-26 | 2020-01-21 | Method for avoiding shape changes in metal coils, in particular for preventing collapse of freshly coiled warm coils |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19165076.1A Withdrawn EP3715003A1 (en) | 2019-03-26 | 2019-03-26 | Method for avoiding shape changes in metal coils, in particular for preventing collapse of freshly coiled warm coils |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220184687A1 (en) |
EP (2) | EP3715003A1 (en) |
CN (1) | CN113631289B (en) |
WO (1) | WO2020192980A1 (en) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4271959A (en) * | 1978-12-26 | 1981-06-09 | Blaw-Knox Foundry & Mill Machinery, Inc. | Coil rotating cooling conveyor system |
DE102005060212A1 (en) | 2005-01-19 | 2006-07-27 | Siemag Gmbh | Device for transporting metal strips on pallets |
EP2143504A1 (en) * | 2008-07-07 | 2010-01-13 | Siemens Aktiengesellschaft | Method for cooling a hot-rolled strip onto a hot-rolled strip coil, a device for cooling a hot-rolled strip coil, a control and/or regulating device and metal strip |
KR101036318B1 (en) * | 2008-12-24 | 2011-05-23 | 주식회사 포스코 | Restoring method for winding profile abnormality of hot rolled coils |
JP2010207836A (en) * | 2009-03-09 | 2010-09-24 | Jfe Steel Corp | Method and device for conveying coil |
KR101695986B1 (en) | 2010-07-29 | 2017-01-13 | 주식회사 포스코 | Coil car |
KR20120012518A (en) | 2010-08-02 | 2012-02-10 | 위니아만도 주식회사 | Jewellery for Refrigerator |
EP2444171A1 (en) | 2010-10-22 | 2012-04-25 | Siemens VAI Metals Technologies GmbH | Transport system, transport vehicle and method for transporting metal coils |
KR101257391B1 (en) * | 2011-04-27 | 2013-04-23 | 현대제철 주식회사 | Apparatus for correcting strip coil |
CN102601165B (en) * | 2012-03-16 | 2014-08-06 | 中国重型机械研究院有限公司 | Control method for small-tension tape penetrating |
KR101420629B1 (en) * | 2013-08-14 | 2014-07-18 | 우원미 | Apparatus and method for prevention sagging of plate typr coil |
CN109332420B (en) * | 2018-11-06 | 2023-12-22 | 昆山佰奥智能装备股份有限公司 | Tension adjusting mechanism |
-
2019
- 2019-03-26 EP EP19165076.1A patent/EP3715003A1/en not_active Withdrawn
-
2020
- 2020-01-21 CN CN202080024287.5A patent/CN113631289B/en active Active
- 2020-01-21 US US17/442,943 patent/US20220184687A1/en active Pending
- 2020-01-21 WO PCT/EP2020/051402 patent/WO2020192980A1/en unknown
- 2020-01-21 EP EP20700748.5A patent/EP3946772B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20220184687A1 (en) | 2022-06-16 |
WO2020192980A1 (en) | 2020-10-01 |
EP3715003A1 (en) | 2020-09-30 |
EP3946772B1 (en) | 2023-03-22 |
CN113631289B (en) | 2023-08-29 |
CN113631289A (en) | 2021-11-09 |
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