EP2982452B1 - Procédé de fabrication d'une bobine en bande métallique - Google Patents

Procédé de fabrication d'une bobine en bande métallique Download PDF

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Publication number
EP2982452B1
EP2982452B1 EP14179813.2A EP14179813A EP2982452B1 EP 2982452 B1 EP2982452 B1 EP 2982452B1 EP 14179813 A EP14179813 A EP 14179813A EP 2982452 B1 EP2982452 B1 EP 2982452B1
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EP
European Patent Office
Prior art keywords
coil
strip
coiling mandrel
welding
mandrel
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.)
Active
Application number
EP14179813.2A
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German (de)
English (en)
Other versions
EP2982452A1 (fr
Inventor
Jürgen Seidel
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.)
SMS Group GmbH
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SMS Group GmbH
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Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Priority to EP14179813.2A priority Critical patent/EP2982452B1/fr
Publication of EP2982452A1 publication Critical patent/EP2982452A1/fr
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Publication of EP2982452B1 publication Critical patent/EP2982452B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product

Definitions

  • the invention relates to a method for producing a coil of metallic strip, in which the tape wound on an expandable coiler mandrel and the finished wound coil deposited on a coil car and transported away from the coiler mandrel.
  • the preamble of claim 1 is based on DE 10 2007 051 976 A1 ,
  • the invention has the object of providing a generic method as well as an associated device in such a way that the windings can be stabilized in the inner region of the coil in an efficient manner.
  • step g) Before the above step g), according to a preferred embodiment of the invention, the above steps c) to f) are repeated at least once, wherein at step d) then a greater movement occurs than in the first execution of step d), so that the axial end the reel mandrel is located away from the end of the coil in the coil eye by a larger predetermined amount, wherein the larger predetermined amount is smaller than the width of the coil.
  • a connection between at least two superimposed band parts is preferably produced by material connection, in particular by electrical or autogenous spot welding, by gluing or by soldering.
  • a connection between at least two superimposed band parts of the band is produced by positive locking, in particular by nailing, screwing or riveting.
  • a turning reel which has at least two working positions, in particular a Coilanwickelposition and a Coilaustrageposition, wherein the above steps b) to g) are performed at one of the working positions, while at another working position, the winding of the tape to the coil.
  • the area of the band end in the coil eye can be pressed radially outwards by means of a holding device, in particular by means of a band return rod, wherein the holding device is moved together with the coil carriage. This prevents "bagging".
  • step d) can also be pressed against one of the axial end faces of the coil, a flat plate, so that the innermost turns of the tape can not escape axially from the coil; this also prevents the formation of "bags".
  • a device not according to the invention for carrying out the method has an expandable coiler mandrel and a coil trolley on which the finished wound coil can be deposited and removed from the coiler mandrel, wherein it is provided according to the invention that the apparatus further comprises a welding robot having a welding head, the is designed for introduction into the coil eye, wherein the welding robot and / or the welding head and / or the power supply to the welding robot is provided with a thermal insulation and / or wherein the welding robot and / or the welding head and / or the power supply to the welding robot with a water cooling is provided.
  • the above-mentioned fixing process (in particular the welding process) is combined with the removal operation of the coil from the coiler mandrel.
  • the fixing process d. H. in particular the welding process, is preferably carried out in hot strips with a strip thickness of less than 1.2 mm.
  • the fixing operation is furthermore preferably carried out on hot strips which are produced by endless or semi-endless rolling; Again, their thickness is preferably less than 1.2 mm.
  • the fixing process is carried out in strip materials of low strength, in which case particular consideration is given to those strengths which are at R P02 ⁇ 300 N / mm 2 , defined under cold conditions.
  • the fixing operation is carried out at high reeling temperatures of more than 400 ° C.
  • the supplied welding energy - d. H. the welding voltage or the welding current or the welding temperature and / or the welding time - are preferably selected depending on the reel temperature, the strip thickness and / or the strip material; the control of this can be done by means of a process model.
  • the fixing or welding process is not carried out. This procedure is also preferably controlled by a process model.
  • the invention is based on the idea that a safe way to avoid a collapse of the inner coil in the coil eye is that For example, a spot welding or stapling of the coil eye already takes place during the discharge of the coil from the reel.
  • a suitable welding machine is used for example in the US 5,705,782 to which reference is made so far. Before annealing, coils are welded with such a machine. This device can also be used in the secure production and further processing of thin strips.
  • the said means for fixing the Coilinnenwindung can not only be used when using a reversible reel, but also be used in conventional underfloor reels or overhead reels.
  • arc spot welding or the TIG or MIG / MAG process can be used by melting two metal sheets in a punctiform manner. Welding can be done with or without the use of inert gas.
  • the pressure plate of the welding unit can be adapted to the non-even surface (due to the coil curvature).
  • the welding spot or the welding line can be placed directly at the top of the belt or in the middle of the belt.
  • the intensity of the welding energy to the Coil conditions preferably model-supported adapted.
  • Fig. 1 is a turnable reel 5 can be seen, which has a left arranged Coilanwickelposition and a right Coilaustrageposition.
  • the present existing two reel mandrels 2 are spreadable; on them a coil 1 can be wound up. Below the wound coil 1, a coiler 3 is arranged in the Coilaustrageposition.
  • a welding robot 9 with a welding head 10 is furthermore arranged.
  • the coiler mandrel 2 take a spread and a despread position.
  • the outer circumference of the coiler mandrel is indicated in the expanded state with b and the outer circumference in the despread state with c.
  • the coiler mandrel 2 has an axis a.
  • the coil 1 has a width B.
  • Fig. 2 the coil 1 is still added to the coiler mandrel 2, which is in the spread state.
  • Fig. 3 is the coil 1 deposed on the coil car 3; the coiler mandrel 2 is despread.
  • the coil eye 4 is first pulled a certain amount from the coiler mandrel 2, as in Fig. 6 is shown. From the left end side of the coil 1 of the coiler mandrel 2 is removed by a predetermined first position X1. In the resulting free space in the coil eye 4, the welding head 10 of the welding robot 9 can now enter and spot welded with its welding contacts 14 two superimposed windings of the tape. It is essential that before the welding of the coiler mandrel 2 is spread again to place the windings clean one above the other.
  • Fig. 7 can be repeated, said process can be repeated, wherein the coil eye 4 has now been pulled up to a larger predetermined position Xi of the coiler mandrel 2; the welding head 10 enters deeper into the coil eye 4 and sets one or more corresponding welding points.
  • FIGS. 8 and 9 is shown as an alternative to Bandand Wegstange 6, the "bag formation" can be prevented.
  • a pressure plate 8 is placed on the axial end face 7 of the coil 1, which is held by a holder 15.
  • the pressure plate 8 has a circular cutout (s. Fig. 9 ), so that a clean completion of the front side of the coil eye 4 is achieved.
  • the emergence of a turn of the band and thus the "bag formation" in the relative movement of the coil 1 relative to the coiler mandrel 2 is thus prevented.
  • a welding machine welding robot
  • Fig. 1 The use of a welding machine (welding robot) is therefore in Fig. 1 shown.
  • the still developing (winding) coil is moved from the coil winding position to the coil discharge position.
  • the new coil winding position will be released again for the next band.
  • the welding robot waits beside the line until the coil is finished. Only then take place the discharge of the coil by means of coil cars and thereby taking place the coil eye while the follower coil is wound.
  • the electrode voltage or the electrode current and / or the welding time are optionally selected depending on the coil temperature, the strip thickness and optionally the strip material. It can also take place a targeted cooling of the wound coil in the weld area, for example, in addition to the thermal protection of the unit to promote the welding process. Depending on the boundary conditions, welding takes place at the respective axial position only at one point or at several points at the same time.
  • the support arm and the welding head area are thermally protected by insulation, water cooling (inside and / or outside) and minimization of the residence time in the high temperature range (for example, welding the robotic arm into the coil eye only for welding).
  • the thermal protection is also useful for the current flow in the support arm.
  • the points bonded by spot welding stably hold the inner turn of the tape together.
  • the spot weld can easily be torn away.
  • the damaged band areas of approx. 4 m are cut off and disposed of, which does not mean a large output loss with a thin, long band.
  • the outer winding can also be welded or fastened with the same welding robot or tacking, bonding or soldering robot, which represents an alternative to binding, especially in the case of thin strip.
  • the proposed method of processing the Coilinnenwindung takes place in tapes with a tape thickness of less than 1.2 mm.
  • an endless rolling or a semi-continuous rolling of hot strip is further preferred.
  • the method is particularly suitable for materials such as sheet or low strength silicon steel (R P02 ⁇ 300 N / mm 2 in the cold state).
  • the reel temperatures are preferably above 400 ° C.
  • the tape tip region may be cooled with water prior to winding, or the tip may be wound warmer than the remainder of the tape.
  • the discharge of the coil 1 is interrupted when there is enough space (X1) for the welding robot head at the edge of the coil, as shown in FIG Fig. 6 you can see.
  • the control program determines the position depending on the Bandwidth and the space requirement of the robot head. After removal of the Bandandschstange (if used), the coiler mandrel is spread again and brings so the inner coil of the coil again to the plant.
  • the welding robot moves to the edge of the coil (in the area "X1", s. Fig. 6 ) and connects the two last turns with each other, for example, and preferably by spot welding. This can be done at least one point or at several points over the circumference.
  • the position of the band tip is preferably tracked (using a process model: hot metal detector, distance, number of revolutions, etc.) or optically detects the band tip, so that the weld points can be optimally positioned.
  • the despreading and further discharge of the coil takes place by means of the bundle wagon.
  • the radially adjustable electrodes of the welding machine or the welding head are withdrawn.
  • the welding process can be repeated at other coil positions Xi, as in Fig. 7 is shown. Ie. after stopping the coil at the position Xi again spreading of the coiler mandrel and a subsequent spot welding done. For this purpose, the welding electrodes are brought back into contact with the Coilinnenwindung. The angular positions may be different from the previous welding position.
  • the mandrel 2 is finally despread, the welding robot arm is withdrawn and the coil 1 is discharged and transported away. Now the discharge position for the next coil is free.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Claims (7)

  1. Procédé pour la fabrication d'une bobine (1) constituée d'une bande métallique, dans lequel on enroule la bande sur un mandrin de bobinage (2) apte à se déployer et on dépose la bobine enroulée (1) prête à l'emploi, sur un chariot de bobine (3) et on l'éloigne du mandrin de bobinage (2), le procédé comprenant les étapes dans lesquelles :
    a) on enroule la bande sur le mandrin de bobinage déployé (2) ;
    b) on retire la bobine enroulée prête à l'emploi (1) sur le chariot de bobine (3) ;
    c) on ramène le mandrin de bobinage (2) ;
    caractérisé en ce que le procédé comprend les étapes supplémentaires dans lesquelles :
    d) on éloigne la bobine (1) du mandrin de bobinage (2) via un mouvement relatif entre le mandrin de bobinage (2) et le chariot de bobine (3) dans la direction de l'axe (a) du mandrin de bobinage (2), un tel mouvement d'éloignement ayant lieu d'une manière telle que l'extrémité axiale du mandrin de bobinage (2) du côté frontal de la bobine (1) disposée dans l'oeil de la bobine (4) est éloignée à concurrence d'une valeur prédéfinie (X1), la valeur prédéfinie (X1) étant inférieure à la largeur (B) de la bobine (1) ;
    e) on déploie le mandrin de bobinage (2) ;
    f) lorsque le mandrin de bobinage (2) est déployé, on place une fixation entre au moins deux parties de la bande réciproquement superposées dans la zone de l'oeil de bobine (4), à partir de laquelle le mandrin de bobinage (2) a été retiré ;
    g) on ramène le mandrin de bobinage (2) et on éloigne complètement la bobine (1) du mandrin de bobinage (2) via un mouvement relatif entre le mandrin de bobinage (2) et le chariot de bobine (3) dans la direction de l'axe (a) du mandrin de bobinage (2).
  2. Procédé selon la revendication 1, caractérisé en ce que, avant l'étape g) selon la revendication 1, on répète les étapes c) à f) selon la revendication 1 au moins une fois, un éloignement supérieur ayant lieu à l'étape d) selon la revendication 1; par rapport à celui de la première mise en oeuvre de l'étape d), d'une manière telle que l'extrémité axiale du mandrin de bobinage (2) du côté frontal de la bobine (1) disposée dans l'oeil de la bobine (4) est éloignée à concurrence d'une valeur supérieure prédéfinie (Xi), la valeur supérieure prédéfinie (Xi) étant inférieure à la largeur (B) de la bobine (1).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que, lors de l'étape f) selon la revendication 1, on génère une liaison entre au moins deux parties réciproquement superposées de la bande par complémentarité de matière, en particulier via un soudage électrique ou autogène par points, via un collage ou via un brasage.
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que, lors de l'étape f) selon la revendication 1, on génère une liaison entre au moins deux parties réciproquement superposées de la bande par complémentarité de forme, en particulier via un clouage, un vissage ou un rivetage.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'on utilise un dévidoir-enrouleur (5) qui présente au moins deux positions de travail, en particulier une position d'enroulement de bobine et une position d'évacuation de bobine, dans lequel on effectue les étapes b) à g) selon la revendication 1, dans une des positions de travail, tandis que l'enroulement de la bande pour obtenir la bobine (1) a lieu dans une autre position de travail.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que, lors de la mise en oeuvre de l'étape d) selon la revendication 1, on soumet la zone de l'extrémité de bande dans l'oeil de la bobine (4) à une compression orientée vers l'extérieur en direction radiale au moyen d'un dispositif de retenue (6), en particulier au moyen d'une barre de pression de bande, le dispositif de retenue se déplaçant de manière conjointe avec le chariot de bobine (3).
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que, lors de la mise en oeuvre de l'étape d) selon la revendication 1, on applique par pression à une des extrémités frontales axiales (7) de la bobine (1), une plaque plane (8) d'une manière telle que les enroulements les plus internes de la bande ne peuvent pas sortir de la bobine (1) en direction axiale.
EP14179813.2A 2014-08-05 2014-08-05 Procédé de fabrication d'une bobine en bande métallique Active EP2982452B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14179813.2A EP2982452B1 (fr) 2014-08-05 2014-08-05 Procédé de fabrication d'une bobine en bande métallique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14179813.2A EP2982452B1 (fr) 2014-08-05 2014-08-05 Procédé de fabrication d'une bobine en bande métallique

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EP2982452A1 EP2982452A1 (fr) 2016-02-10
EP2982452B1 true EP2982452B1 (fr) 2016-10-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022253475A1 (fr) 2021-06-01 2022-12-08 Primetals Technologies Austria GmbH Procédé d'enroulement d'une bande métallique, bobine et dispositif d'enroulement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020200472A1 (de) * 2019-06-13 2020-12-17 Sms Group Gmbh Fixieren eines Bandendabschnitts eines Metallbandcoils an einer benachbarten Bandwicklung
CN114535353A (zh) * 2022-03-17 2022-05-27 山东钢铁集团日照有限公司 一种热轧卷取机安全卸卷方法

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Publication number Priority date Publication date Assignee Title
US3062465A (en) 1960-04-14 1962-11-06 Aluminum Res Corp Method of and apparatus for reeling sheet material continuously
JPS6138711A (ja) 1984-07-31 1986-02-24 Nippon Steel Corp 金属コイルの最内巻コイル端の位置矯正方法とその装置
DE8711281U1 (fr) 1987-08-20 1987-11-19 Sundwiger Eisenhuette Maschinenfabrik Grah & Co, 5870 Hemer, De
JPH07214160A (ja) * 1994-01-27 1995-08-15 Nippon Steel Corp 熱延コイルの巻き取り方法
JPH09201620A (ja) 1996-01-24 1997-08-05 Kawasaki Steel Corp 金属帯コイルの巻取り方法
US5705782A (en) 1996-09-30 1998-01-06 Gerback; David Internal coil spot welding device
US6354534B1 (en) 1998-11-05 2002-03-12 Braner Usa, Inc. Mechanism for increasing the diameter of metal coil coilers
DE10142179A1 (de) 2001-08-29 2003-03-20 Sms Demag Ag Verfahren und Vorrichtung zum Haspeln von dünnem Metallband, insbesondere von warm- oder kaltgewalztem dünnen Stahlband
DE10300362A1 (de) * 2003-01-06 2004-07-22 Sms Demag Ag Verfahren und Anlage zum Walzen und anschließendem Haspeln von Metallband, insbesondere von Stahlband
DE102005034031A1 (de) 2005-07-18 2007-01-25 Sms Demag Ag Walzanlage und Verfahren zum Erzeugen eines Metallbandes
DE102007051976A1 (de) * 2007-10-31 2009-05-07 Sms Demag Ag Haspelvorrichtung und Verfahren zur Fixierung der Bunde bzw. Coils bei dieser Haspelvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022253475A1 (fr) 2021-06-01 2022-12-08 Primetals Technologies Austria GmbH Procédé d'enroulement d'une bande métallique, bobine et dispositif d'enroulement

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