EP2193856B1 - Vorrichtung zum Aufwickeln von Metallbändern in Bunden - Google Patents

Vorrichtung zum Aufwickeln von Metallbändern in Bunden Download PDF

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Publication number
EP2193856B1
EP2193856B1 EP08425777A EP08425777A EP2193856B1 EP 2193856 B1 EP2193856 B1 EP 2193856B1 EP 08425777 A EP08425777 A EP 08425777A EP 08425777 A EP08425777 A EP 08425777A EP 2193856 B1 EP2193856 B1 EP 2193856B1
Authority
EP
European Patent Office
Prior art keywords
station
shaft
working
winding
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.)
Not-in-force
Application number
EP08425777A
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English (en)
French (fr)
Other versions
EP2193856A1 (de
Inventor
Daniele Bersia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Globus Srl
Original Assignee
Globus Srl
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Filing date
Publication date
Application filed by Globus Srl filed Critical Globus Srl
Priority to AT08425777T priority Critical patent/ATE518609T1/de
Priority to EP08425777A priority patent/EP2193856B1/de
Publication of EP2193856A1 publication Critical patent/EP2193856A1/de
Application granted granted Critical
Publication of EP2193856B1 publication Critical patent/EP2193856B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21C47/245—Devices for the replacement of full reels by empty reels or vice versa, without considerable loss of time
    • 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
    • B21C47/06—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
    • B21C47/066—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum with belt wrappers only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2207—Changing the web roll in winding mechanisms or in connection with winding operations the web roll being driven by a winding mechanism of the centre or core drive type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/28—Registering, tensioning, smoothing or guiding webs longitudinally by longitudinally-extending strips, tubes, plates, or wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/40—Holders, supports for rolls
    • B65H2405/42—Supports for rolls fully removable from the handling machine
    • B65H2405/422—Trolley, cart, i.e. support movable on floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/173—Metal

Definitions

  • the present invention concerns a winding assembly for metal strips in coils.
  • the invention has been developed particularly in view of the application to continuous process lines such as for example coating lines, galvanizing lines, pickling lines, etc. envisaging the unwinding of the strips from a coil at the beginning of the process line and the rewinding of the strip in coil at the end of the process line.
  • the invention is also applicable to "stand-alone" rolling mills and, in general, to any machine or plant in which the unwinding of a metal strip from a first coil and the rewinding of a strip on a second coil after the execution of the treatment is envisaged.
  • the accumulators In order to ensure a constant velocity operation of the treatment line, the accumulators have to be dimensioned so as to accumulate or release the amount of strip which is processed during the time needed for coil load and unload operations.
  • an accumulator containing a strip with a length of at least 280 meters has a structure of metal carpentry which has more or less the following dimensions: height 18 meters, width 10 meters, depth 3,5 meters.
  • the weight of this structure may be estimated in 110 tons.
  • EP-A-1033186 discloses a device for endless coiling of strip material having two coil drums which are spaced from one another and move synchronously along the support in opposite directions.
  • the first and second coil drums are displaced alternately to an initial position wherein each of these drums rotates to receive a leading edge of a respective coil of strip material. Thereafter, each of the coil drums is displaced to a respective finish position where the coil drums each receives the remainder of a respective coil.
  • the object of the present invention is to provide a winding assembly for metal strips allowing to overcome the problems of the prior art.
  • this object is achieved by a winding assembly having the features forming the subject of claim 1.
  • the invention is applied to winding shafts of "stand-alone" rolling mills the machine stop times for the coil load and unload operations are considerably reduced, with a corresponding increment of productivity.
  • an improvement of the quality is also obtained because by limiting the machine stop time the lack of thermal profile (thermal crown) required by the working rollers during the rolling mill process is also limited.
  • the numeral reference 10 indicates a winding assembly adapted to form coils of a metal strip 12 advancing in the direction indicated by the arrow 14.
  • the winding assembly 10 comprises a stationary base 16 on which a mobile table 18 is mounted.
  • the mobile table 18 carries a first driven shaft 20 and a second driven shaft 22.
  • the two shafts 20, 22 are rotatably mounted around respective axes 24, 26 parallel to each other.
  • the mobile table 18 is movable along a direction orthogonal with respect to the axes 24, 26.
  • the axes 24, 26 are horizontal and the table 18 is movable along a rectilinear horizontal direction.
  • Each of the shafts 20, 22 is actuated by a respective electric motor 28, 30.
  • the electric motors 28, 30 are coupled to the respective shafts 20, 22 by respective reducers 32, 34.
  • the motor-reducer assemblies 28, 32 are fixed to the mobile table 18.
  • the winding assembly 10 comprises a wind starting station 36, a first working station 38 and a second working station 40.
  • the stations 36, 38, 40 are in positions fixed with respect to the stationary base 16.
  • the first and the second working stations 38, 40 are located on opposite sides with respect to the wind starting station 36.
  • the mobile table 18 is movable with respect to the stationary base 16 between a first working position shown in figures 1 and 3 and a second working position shown in figures 2 and 4 .
  • the first shaft 20 is located in the wind starting station 36 and the second shaft 22 is located in the first working station 38.
  • the first shaft 20 is located in the second working station 40 and the second shaft 22 is positioned in the wind starting station 36.
  • the movement of the mobile table 18 is controlled by actuator means of a conventional type (not shown), for example by an hydraulic cylinder.
  • the position of the translating table 18 can be controlled by a position transducer, for example installed on the stem of the control cylinder.
  • the supply of the control oil to the cylinder can be controlled by a proportional valve connected in closed-loop to the position transducer, by which it is possible to control the law of movement of the table.
  • Each of the stations 36, 38, 40 comprises a respective tramway 42, 44, 46 ( figures 3 and 4 ).
  • the tramways 42, 44, 46 are parallel to each other and they extend orthogonally with respect to the direction of movement of the mobile table 18.
  • Each of the tramways 42, 44, 46 is preferably made up of two rails fixed to the ground.
  • On the first tramway 42 there is mounted a bogie carrying a belt wrapper 48, movable along the tramway 42 between an operative position and an inoperative position. In the operative position, the belt wrapper 48 partially surrounds the shaft 20, 22 which in each turn is positioned in the wind starting station 36. In the inoperative position, the belt wrapper 48 is in a position remote from the winding station 36 and it does not interfere with the shaft 20, 22 positioned in the wind starting station 36.
  • the winding assembly 10 comprises a coil guiding device 54.
  • a coil guiding device 54 Such a device comprises two belt conveyors 56 holding the strip therebetween and moving at the same velocity as the strip in the direction 14.
  • a flying shear 58 adapted to perform a transversal cut of the strip 12 without stopping or slowing the movement of the strip 12 in the direction of movement 14.
  • Downstream of the belt conveyors 56 there is provided a group of deflector rolls 60 which modify the direction of movement of the strip 12. Downstream of the deflector rolls 60 there is located a guiding table 62 at the end of which there is located a pass-line roll 64.
  • the guiding device 54 is in a fixed position and the pass-line roll 64 is located in correspondence with the wind starting station 36.
  • the bogie carrying the belt wrapper 48 also carries a retaining wall 66 facing the guide wall 62 when the belt wrapper 48 is located in the wind starting station 36.
  • the retaining wall 66 extends between the pass-line roll 64 and the external surface of the shaft 20, 22 which in each turn is located in the wind starting station 36.
  • the strip 12 proceeds at constant velocity in the direction indicated by the arrow 14, goes through the guiding device 54 and is wound in a coil 70 which is currently formed on the shaft 22 located in the first working station 38. While the coil 70 is formed on the second shaft 22, the first shaft 20 is located in the wind starting station 36. When the coil 70 is completed, the shear 58 cuts the strip 12 in transversal direction. While the tail of the strip is wound on the coil 70, the head of the strip 12 is guided between the walls 62, 66 and is directed to the first shaft 20. The leading end of the strip is inserted between the belt wrapper 48 and the external surface of the shaft 20. After the winding of some turns on the shaft 20, the belt wrapper 48 is moved to an inoperative position.
  • the complete coil 70 in the first working station 38 is removed by the coil car 50.
  • the mobile table 18 moves to its second operative position shown in figures 2 and 4 . In this position, the formation of a new coil 72 on the first driven shaft 20 is completed, while the second driven shaft 22 is located in the wind starting station 36. While the second coil 72 is formed on the shaft 20 in the second working station 40, the belt wrapper 48 is positioned on the second shaft 22 in the wind starting station 36.
  • the strip 12 is cut and the formation of a further coil on the shaft 22 begins.
  • the coil car 52 removes the complete coil 72 from the second working station 40. After the removal of the second coil 72 from the second working station 40, the mobile table 18 moves back to the first operative position shown in figures 1 and 2 and the cycle restarts as previously described.
  • the unwinding assembly 110 comprises a stationary base 116 and a mobile table 118.
  • the mobile table carries a first driven shaft 120 and a second driven shaft 122 in a way similar to what previously described with reference to the winding assembly 10.
  • the driven shafts 120, 122 are rotatably mounted around respective axes 124, 126 parallel to each other and are actuated by respective motors 128, 130 via respective reducers 132, 134.
  • the mobile table 118 is movable along a direction orthogonal with respect to the axes 124, 126 between a first operative position shown in figures 5 and 7 and a second operative position shown in figures 6 and 8 .
  • the unwinding assembly 110 comprises an unwind starting station 136, a first working station 138 and a second working station 140.
  • the working stations 138 and 140 are located on opposite sides with respect to the unwind starting station 136.
  • Each station 136, 138, 140 comprises a respective tramway 142, 144, 146 preferably made up of a pair of rails.
  • the tramways 142, 144, 146 are orthogonal with respect to the direction of movement of the mobile table 118.
  • the first shaft 120 in the first operative position, the first shaft 120 is located in the unwind starting station 136 and the second shaft 122 is located in the first working station 138 ( figures 5 and 7 ). In the second operative position, the first shaft 120 is located in the second working station 140 and the second shaft 122 is located in the unwind starting station 136 ( figures 6 and 8 ).
  • a coil car 148 adapted to perform the loading of a new coil on the shaft 120, 122 which in each turn is in the unwind starting station 136.
  • a coil car 150 adapted to perform the unloading of the spool of a finished coil from the shaft 122 which is in the first working station 148.
  • a coil car 152 having a device 154 adapted to perform the detachment of the leading edge of the strip from the external surface of the coil which in each turn is located in the unwind starting station 136.
  • the coil car 152 is also provided with a support 156 adapted to perform the removal of the empty spool on the shaft 120 located in the second working station 140.
  • the first and the second working station 138, 140 can be provided with auxiliary supports 158, 160 adapted to bear the free ends of the shafts 120, 122.
  • the supports 158, 160 are fixed to the ground and each of them is movable between an inoperative position allowing the passage of the coil cars 150, 152 on the tramways 144, 146 and an operative position in which each support 158, 160 is connected to the free end of the respective shaft 120, 122.
  • Such auxiliary supports 158, 160 might also be provided in the winding assembly previously described.
  • the operation of the unwinding assembly 110 is the following.
  • Figures 6 and 8 show an operative condition in which the strip 112 is unwinding from a nearly finished coil carried by the first shaft 120 located in the second working station 140.
  • the second shaft 122 is in the unwind starting station 136 and a new coil 170 is located on the shaft 122.
  • the device 154 is in the operative position and performs the detachment of the leading edge of the strip from the coil 170.
  • the strip being unwound 112 is deflected by a pass-line roll 160.
  • the device 154 guides the leading stretch of the strip coming from the coil 170 towards the pass-line roll 160.
  • the unwinding of the strip from the coil 170 in the unwind starting station 136 begins.
  • the spool of the finished coil located in the second working station 140 is removed by the coil car 152.
  • the table 116 moves to the first operative position ( figures 5 and 7 ) in which the first shaft 120 is located in the unwind starting station 136 and the second shaft 122 is located in the first working station 138. While the coil 170 located in the first working station 138 unwinds, a new coil 172 is loaded by the coil car 148 on the shaft 120 which is in the unwind starting station 136. The device 154 performs the detachment of the leading stretch of the strip and prepares the coil 172 for the unwinding. When the coil 170 finishes, the unwinding of the new coil 172 in the unwind starting station 136 begins. The spool of the finished coil 170 is removed by the coil car 150. Subsequently, the mobile table 116 moves back to the second working position shown in figures 6 and 7 and the cycle restarts as previously described.
  • the described unwinding assembly allows arranging a new coil for the unwinding of the strip while a previous coil is being unwound. Thus, the time necessary to prepare a new coil does not entail an interruption of the strip supply.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Unwinding Webs (AREA)

Claims (5)

  1. Vorrichtung zum Aufwickeln von Metallbändern in Bunden, aufweisend:
    - eine erste und eine zweite angetriebene Welle (20, 22), die um jeweilige Achsen (24, 26; 124, 126) parallel zueinander drehbar gelagert sind,
    - einen mobilen Tisch (18), der die Wellen (20, 22) trägt und zwischen einer ersten und einer zweiten Arbeitsposition in einer zu den Rotationsachsen (24, 26) der Wellen (20, 22) orthogonalen Richtung bewegbar ist,
    - eine Aufwickel-Anfangsstation (36), und
    - eine erste und eine zweite Arbeitsstation (38, 40), die bezüglich der Aufwickel-Anfangsstation (36) auf gegenüberliegenden Seiten angeordnet sind,
    - wobei sich in der ersten Arbeitsposition des mobilen Tisches (18) die erste angetriebene Welle (20) in der Aufwickel-Anfangsstation (36) und die zweite angetriebene Welle (22) in der ersten Arbeitsstation (38) befindet, und wobei sich in der zweiten Arbeitsposition des mobilen Tisches (18) die erste Welle (20) in der zweiten Arbeitsstation und die zweite Welle (22) in der Aufwickel-Anfangsstation (36) befindet,
    dadurch gekennzeichnet, dass
    sie eine Bandführungsvorrichtung (54) in einer festen Position aufweist, die zwei einander gegenüberliege Gurtförderer (56), eine Gruppe von Umlenkrollen (60), die stromabwärts der Gurtförderer (56) zum Ändern der Bewegungsrichtung des Bandes angeordnet ist, einen Bandführungstisch (62), der stromabwärts der Umlenkrollen (60) angeordnet ist, eine Durchgangslinienwalze (64), die am Ende des Führungstisches (62) korrespondierend zu der Aufwickel-Anfangsstation (36) angeordnet ist, und eine fliegende Schere (58), die stromaufwärts der Gurtförderer (56) angeordnet ist, umfasst.
  2. Vorrichtung zum Aufwickeln nach Anspruch 1,
    dadurch gekennzeichnet, dass
    jede Station (36, 38, 40) einer jeweiligen Bahn (42, 44, 46) zugeordnet ist, wobei die Bahnen orthogonal zur Bewegungsrichtung des mobilen Tisches (18) verlaufen.
  3. Vorrichtung zum Aufwickeln nach Anspruch 2,
    dadurch gekennzeichnet, dass
    auf der Bahn (42), die der Aufwickel-Anfangsstation (36) zugeordnet ist, ein Wagen angebracht ist, der einen Gurtwickler (48) trägt, der mit einer Welle (20, 22) zusammenwirkt, die sich jeweils in der Aufwickel-Anfangsstation (36) befindet.
  4. Vorrichtung zum Aufwickeln nach Anspruch 2,
    dadurch gekennzeichnet, dass
    sie Bundwägen (50, 52) aufweist, die auf den Bahnen (44, 46) angebracht sind, welche der ersten und zweiten Arbeitsstation (38, 40) zugeordnet sind.
  5. Vorrichtung zum Aufwickeln nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    sie Hilfsträger (158, 160) aufweist, welche die freien Enden der Wellen (20, 22) tragen können und korrespondierend zu der ersten und der zweiten Arbeitsstation (38, 40) angeordnet sind.
EP08425777A 2008-12-05 2008-12-05 Vorrichtung zum Aufwickeln von Metallbändern in Bunden Not-in-force EP2193856B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT08425777T ATE518609T1 (de) 2008-12-05 2008-12-05 Vorrichtung zum aufwickeln von metallbändern in bunden
EP08425777A EP2193856B1 (de) 2008-12-05 2008-12-05 Vorrichtung zum Aufwickeln von Metallbändern in Bunden

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08425777A EP2193856B1 (de) 2008-12-05 2008-12-05 Vorrichtung zum Aufwickeln von Metallbändern in Bunden

Publications (2)

Publication Number Publication Date
EP2193856A1 EP2193856A1 (de) 2010-06-09
EP2193856B1 true EP2193856B1 (de) 2011-08-03

Family

ID=40589741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08425777A Not-in-force EP2193856B1 (de) 2008-12-05 2008-12-05 Vorrichtung zum Aufwickeln von Metallbändern in Bunden

Country Status (2)

Country Link
EP (1) EP2193856B1 (de)
AT (1) ATE518609T1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5325822B2 (de) * 1972-07-21 1978-07-28
JPS59169620A (ja) * 1983-03-17 1984-09-25 Mitsubishi Heavy Ind Ltd コイルの連続供給装置
AT407613B (de) 1999-03-03 2001-05-25 Voest Alpine Ind Anlagen Vorrichtung zum endloswickeln von bandmaterial

Also Published As

Publication number Publication date
EP2193856A1 (de) 2010-06-09
ATE518609T1 (de) 2011-08-15

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