EP3511083B1 - Device and method for coiling a metallic strip - Google Patents

Device and method for coiling a metallic strip Download PDF

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Publication number
EP3511083B1
EP3511083B1 EP19151583.2A EP19151583A EP3511083B1 EP 3511083 B1 EP3511083 B1 EP 3511083B1 EP 19151583 A EP19151583 A EP 19151583A EP 3511083 B1 EP3511083 B1 EP 3511083B1
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EP
European Patent Office
Prior art keywords
strip
water
diverter
belt
under pressure
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
EP19151583.2A
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German (de)
French (fr)
Other versions
EP3511083A1 (en
Inventor
Christian Mengel
Heinz-Adolf MÜLLER
Ulrich Cramer
Andreas Kastner
Thomas Holzhauer
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
Original Assignee
SMS Group GmbH
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Filing date
Publication date
Priority claimed from DE102019200196.3A external-priority patent/DE102019200196A1/en
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3511083A1 publication Critical patent/EP3511083A1/en
Application granted granted Critical
Publication of EP3511083B1 publication Critical patent/EP3511083B1/en
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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
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3466—Feeding or guiding devices not specially adapted to a particular type of apparatus by using specific means
    • B21C47/3475—Fluid pressure or vacuum
    • 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
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3433—Feeding or guiding devices not specially adapted to a particular type of apparatus for guiding the leading end of the material, e.g. from or to a coiler
    • B21C47/3441—Diverting the leading end, e.g. from main flow to a coiling device

Definitions

  • the invention relates to a method for winding a metallic strip according to the preamble of claim 1 or claim 3, and a corresponding device according to the preamble of claim 11.
  • reel devices In order to prepare for the transport of steel strips, reel devices are known in the prior art, in which a respective band is guided from a driver device to a reel mandrel rotatably mounted about an axis and is then wound onto the reel mandrel. Between the driver device and the reel mandrel there is a guide shaft through which the tape to be wound is traversed. A belt switch is arranged adjacent to an opening in the guide shaft, with which the belt experiences a change in direction and is thus guided into the guide shaft.
  • the head of a tape to be wound hits the tape switch or other components that, viewed in the transport direction of the tape, after or after passing the driver device with a relatively high impulse, due to the speed and rigidity of the tape are arranged downstream of the belt switch.
  • the mechanical guiding or diversion of the belt which takes place essentially through contact with the belt switch, disadvantageously leads to a frictional resistance between the moving belt and the contact surfaces of the belt switch. In particular with thin strip material, this can cause a transport inhibition. which leads to a build-up and an unfavorable directional reversal of the strip material.
  • This disadvantage also exists in the event that a fluid or water is sprayed onto the belt in the area of the belt switch, but insufficient forces are generated on the belt for the purpose of deflecting it into the guide shaft.
  • the invention is based on the object of creating a technology for winding a metallic strip with which an improved winding quality for the strip and, with regard to the spray water used for this purpose, an improved energy efficiency is achieved.
  • a method according to the present invention is used for winding a metallic strip, in particular a steel strip.
  • This method provides that the tape is moved in one transport direction, guided through a tape switch into a guide shaft and then wound onto a reel mandrel that is rotatably mounted about an axis.
  • a fluid is applied to the belt in the direction of the guide shaft in order to optimize the threading of the belt into the guide shaft.
  • at least one opening is formed in the belt switch through which the water is sprayed under pressure onto the belt.
  • water under pressure is used as the fluid, the water pressure being set such that a width-specific force between 0.1 N / [mm bandwidth] and 10 N / [mm bandwidth] is exerted on the band.
  • the water only hits the belt in the area of the belt switch is applied until the tape head has been wound onto the reel mandrel with up to three turns. If necessary, the spraying of water onto the strip in the area of the strip switch can already be stopped when the strip has been wound onto the reel mandrel with at least one turn or with two turns.
  • An alternative method according to the present invention is also used for winding a metallic tape. It is provided that the tape is moved in one transport direction, guided into a guide shaft through a tape switch and then wound onto a reel mandrel rotatably mounted around an axis, a fluid being applied to the tape in the direction of the guide slot in the area of the tape switch.
  • the belt switch there is at least one opening through which the water is sprayed onto the belt under pressure. Water under pressure is used as the fluid, with the water being applied to the strip in the area of the strip switch only until the strip head has been wound onto the reel mandrel with up to three turns. If necessary, the spraying of water onto the strip in the area of the strip switch can already be stopped when the strip has been wound onto the reel mandrel with at least one turn or with two turns.
  • the water pressure is set such that a width-specific force of between 0.1 N / [mm bandwidth] and 10 N / [mm bandwidth] is exerted on the band.
  • the invention is based on the essential knowledge that with the help of the water that is sprayed onto the belt in the area of the belt switch and leads to a width-specific force between 0.1 N / [mm belt width] and 10 N / [mm belt width] a pressure or a force is exerted on the tape which is sufficiently great that the tape is effectively deflected in direction into the guide shaft.
  • the deflection or guidance of the tape and its tape head is achieved essentially solely by the water sprayed onto the tape under pressure. This ensures that the mechanical contact of the tape head with the tape switch is advantageously minimized.
  • the belt switch thus only forms a "safety position", mechanical contact of the tape head with the belt switch then actually or at the latest causing the belt to be deflected or guided into the guide shaft.
  • Another essential aspect of the present invention is that when the tape is wound up, the energy efficiency with regard to the spraying of the water that is applied to the tape in the area of the tape switch is optimized by such an application or spraying of water the tape for the purpose of deflecting it into the guide shaft only takes place as long as the tape head has been wound onto the reel mandrel with up to three turns. If necessary, the spraying of water onto the strip in the area of the strip switch can already be stopped when the strip has been wound onto the reel mandrel with at least one turn or with two turns.
  • this nozzle or nozzles are designed in such a way that the water is applied to the belt over its entire length Width can be applied. This ensures that a force is exerted on the belt over its entire width by the water sprayed on it, in order to achieve a uniform change in direction or reversal in the direction of the guide shaft.
  • the water under pressure is applied to the belt in the area of the belt switch through at least one nozzle or a row of nozzles is deployed which, viewed in the direction of transport of the belt, is arranged upstream of a pivot point of the belt switch.
  • a nozzle or row of nozzles can also be arranged upstream of a tip of the belt switch, viewed in the direction of transport of the belt.
  • At least one opening is formed in the belt switch through which the water is sprayed onto the belt under pressure.
  • an opening can be designed in the form of a slot opening and extend over the width of the belt switch.
  • the water can be sprayed onto the belt under pressure in such a way that it has a directional component in the direction of transport of the belt. This avoids any artificial additional resistance which would otherwise arise from the spraying of water onto the surfaces of the belt.
  • the said directional component which is generated with or in the water sprayed onto the strip, optimizes the movement or guidance of the strip in the direction of the reel mandrel.
  • a transport fluid can be directed onto the belt within the guide shaft. It is useful here that this transport fluid has a directional component in the direction of the reel mandrel, which promotes the movement of the strip in the direction of the reel mandrel becomes.
  • This transport fluid can be compressed air and / or water under pressure. In any case, this transport fluid has the advantage that the strip is transported within the guide shaft in the direction of the reel mandrel with reduced frictional contacts that would otherwise arise with the boundary areas of the guide shaft.
  • the transport fluid is preferably applied or sprayed onto the surfaces thereof from both sides of the belt.
  • the water in the area of the belt switch and / or the transport fluid within the guide shaft are discharged as soon as the tape head of the tape is a predetermined distance from a driver device that is arranged upstream of the belt switch in the transport direction of the belt and comes into contact therewith for driving the belt in the transport direction, falls below upstream thereof.
  • the spraying of water under pressure in the area of the belt switch and / or the application of the transport fluid to the belt within the guide shaft is started shortly before the head of the moving belt reaches the driver device.
  • This "timing" in relation to the start of the application of the water under pressure or the transport fluid is implemented by defining the predetermined distance upstream of the driving device and can be monitored with the aid of a sensor which is arranged at the location of this predetermined distance. As soon as the head of the moving belt passes the sensor, a corresponding control signal is generated by the sensor and the application of the water under pressure in the area of the belt switch or the transport fluid within the guide shaft is initiated. It is accordingly ensured that the desired influencing or deflection of the direction of the tape actually starts immediately when the tape head of the tape reaches the tape switch.
  • the invention also provides a device for winding a metallic strip, in particular a steel strip, and comprises a reel mandrel for winding the band, a guide shaft which is arranged upstream of the reel mandrel, as seen in the transport direction of the band, a band switch, by means of which the strip is introduced into the guide shaft, at least one nozzle or row of nozzles arranged in the area of the strip switch, through which water can be applied to the strip under pressure, and a control device, by means of which the application of water onto the strip in the area of the strip switch can be controlled or regulated. At least one opening is formed in the belt switch through which the water can be sprayed onto the belt under pressure.
  • the control device is programmed in such a way that in the area of the strip switch the water is only applied under pressure to the strip until the strip with its strip head hits the reel mandrel with at least one turn, preferably with at least two turns, more preferably with up to three Turns has been wound.
  • the aforementioned device can have a first sensor which is arranged at a predetermined distance upstream of the driver device and is in signal connection with the control device.
  • the above-mentioned device can have a second sensor which is arranged adjacent to the reel mandrel and is in signal connection with the control device.
  • a signal from the second sensor it is possible to detect at what point in time the tape has been wound on the reel mandrel, to what extent or with what number of turns, in order, depending on this, to dispense or spray water onto the tape in the area turn off the belt switch.
  • the device according to the invention leads to the advantage of improved energy efficiency with regard to the spraying of water under pressure onto the belt in the area of the belt switch.
  • the spraying of water onto the tape is carried out only at the beginning of the winding process when the tape head of the tape is moved past the strip switch for the first time, this ejection being stopped as soon as the strip has been wound on the reel mandrel with at least one turn, preferably with up to three turns.
  • FIG. 1 shows a simplified side view of a device 10 according to the invention for winding a metallic strip, with which the corresponding method can also be carried out.
  • the same features in the drawing are each provided with the same reference symbols. At this point, it is pointed out separately that the representation in the Fig. 1 is only shown in a simplified and in particular without scale.
  • the device 10 fulfills the function of a reel device and serves to wind up a metallic strip 11, which is moved or conveyed in a transport direction T.
  • the device 10 comprises a reel mandrel 12, which is mounted rotatably about an axis 13, the strip 11 being moved in the direction of the reel mandrel 12.
  • the device 10 comprises a guide shaft 14 and a belt switch 15, which - viewed in the transport direction T of the belt 11 - is arranged upstream of the guide shaft 14.
  • the belt switch 15 is mounted around a stationary pivot point 16 and can accordingly be pivoted around this pivot point 16.
  • nozzles or rows of nozzles 18 are provided, each of which - viewed in the transport direction T of the belt 11 - are arranged upstream of the pivot point 16 of the belt switch 15.
  • These nozzles or rows of nozzles 18 can be designed in the form of separate nozzles and / or in the form of at least one opening which is designed as a slot nozzle in a surface on the underside of the belt switch 15 facing the belt 11.
  • the at least one nozzle or nozzle row 18 is used to spray water under pressure onto the belt 11, which is explained separately below.
  • two rows of nozzles 18 are provided upstream of the belt switch 15, which - viewed in the transport direction T of the belt 11 - are arranged one behind the other.
  • the device 10 comprises a driver device 19 which - viewed in the transport direction T of the belt 11 - is arranged upstream of the belt switch 15.
  • the driver device 19 has at least one driven roller which, as it rotates, comes into contact with the belt 11 and thus moves or conveys it in the transport direction T.
  • the guide shaft 14 is formed from a guide table 20 and a shaft flap 21 arranged opposite thereto. At one end of the shaft flap 21, adjacent to the reel mandrel 12, a shaft flap roller 22 is provided, with which the strip 11 is guided to the reel mandrel 12.
  • nozzles or rows of nozzles are provided within the guide shaft 14, namely nozzles or rows of nozzles 23a, which are directed towards an underside of the belt 11, and nozzles or rows of nozzles 23b, which are directed towards an upper side of the belt 11.
  • a transport fluid is applied to the surfaces of the belt 11 during the winding of the strip 11 onto the reel mandrel 12, which is explained separately below.
  • winding rollers with associated deflection plates which ensure that the tape 11 is wound onto the reel mandrel 12 when a tape head 11K reaches the reel mandrel 12 after passing through the guide shaft 14.
  • these are the winding rollers 24, 26 and 28, with the respective associated deflection plates 25, 27 and 29.
  • the device 10 also includes a control device 30. Via a signal connection or signal path 31, which is shown in FIG Fig. 1 Simplified with dotted lines, this control device 30 is in signal connection with a first sensor 32, which is arranged at a predetermined distance upstream of the driver device 19, and with a second sensor 34, which is arranged adjacent to the reel mandrel 12.
  • control device 30 it is possible by means of the control device 30 to control the water which is sprayed onto the belt 11 in the area of the belt switch 15 from the at least one nozzle or row of nozzles 18, and / or the transport fluid which is sprayed from the nozzles or in the area of the guide shaft 14 Rows of nozzles 23a, 23b are directed or discharged onto the lower and upper sides of the belt 11, to control or regulate.
  • the control device 30 is signal-connected to suitable pumping or conveying devices with which the water is conveyed under pressure to the nozzle or row of nozzles 18 or the transport fluid is conveyed to the nozzles or rows of nozzles 23a, 23b.
  • the invention now works as follows:
  • the contact of at least one driven roller of the driver device 19 with the belt 11 leads to the belt 11 being moved further in the direction of the belt switch 15.
  • a corresponding signal is transmitted to the control device 30, with the control device 30 then initiating or injecting water under pressure through the rows of nozzles 18 in the direction of the guide shaft 14. is initiated.
  • the tape 11 when its tape head 11K reaches the nozzle rows 18, is immediately or immediately acted upon by the water pressure from its upper side.
  • the pressure for the water sprayed out of the rows of nozzles 18 is selected such that a width-specific force is exerted on the band 11, which is between 0.1 N / [mm band width] and 10 N / [mm band width], depending on the condition and Thickness of the belt 11.
  • the pressure for the water sprayed through the row (s) of nozzles 18 and the resulting width-specific force that acts on the belt 11 is selected to be sufficiently high that this force pushes the belt 11 in the direction of the guide shaft 14 is diverted.
  • the aim is pursued that a mechanical contact between the tape head 11K and the tape switch 15 is at least minimized or no longer takes place at all. In the latter case, this means that the tape head 11K of the tape 11 is guided or deflected into the guide slot 14 solely by the force of the water sprayed through the row (s) of nozzles 18.
  • the belt 11 and the resulting belt course which is established with the use of the present invention, ie with the spraying of water under pressure onto the belt 11 through the nozzle row (s) 18, is indicated in the region of the guide shaft 14 by the dashed line 42.
  • the course of the band which occurs without the use of the invention, ie without spraying water under pressure through the nozzle row (s) 18, is in the Fig. 1 outlined in the area of the guide shaft 14 by the solid line 40.
  • the transport fluid can be compressed air and / or water under pressure.
  • the winding rollers 24, 26, 28 arranged around the reel mandrel 12 and the associated deflection shields 25, 27, 29 are used to wind the tape 11 onto the reel mandrel 12.
  • the reel mandrel 12 can be motor-driven about the axis 13, when viewed from FIG Fig. 1 clockwise.
  • the number of turns with which the strip 11 has been wound onto the reel mandrel 12 can be detected with the aid of the sensor 34.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Replacement Of Web Rolls (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Aufwickeln eines metallischen Bandes nach dem Oberbegriff von Anspruch 1 bzw. von Anspruch 3, und eine entsprechende Vorrichtung nach dem Oberbegriff von Anspruch 11.The invention relates to a method for winding a metallic strip according to the preamble of claim 1 or claim 3, and a corresponding device according to the preamble of claim 11.

Zur Vorbereitung eines Transports von Stahlbändern sind nach dem Stand der Technik Haspelvorrichtungen bekannt, bei denen ein jeweiliges Band von einer Treibereinrichtung bis zu einem um eine Achse drehbar gelagerten Haspeldorn geführt und anschließend auf den Haspeldorn aufgewickelt wird. Zwischen der Treibereinrichtung und dem Haspeldorn befindet sich ein Führungsschacht, der von dem aufzuwickelnden Band durchlaufen wird. Angrenzend zu einer Öffnung des Führungsschachts ist eine Bandweiche angeordnet, mit der das Band eine Richtungsänderung erfährt und damit in den Führungsschacht hineingeleitet wird.In order to prepare for the transport of steel strips, reel devices are known in the prior art, in which a respective band is guided from a driver device to a reel mandrel rotatably mounted about an axis and is then wound onto the reel mandrel. Between the driver device and the reel mandrel there is a guide shaft through which the tape to be wound is traversed. A belt switch is arranged adjacent to an opening in the guide shaft, with which the belt experiences a change in direction and is thus guided into the guide shaft.

Nach dem Stand der Technik ist aus EP 2 512 701 B1 , WO 2016/091855 A1 und JP 2005305452 A das Aufbringen von Medien bzw. Wasser auf das Band im Bereich der Bandweiche bekannt, zu Kühl- bzw. Transportzwecken.The state of the art is off EP 2 512 701 B1 , WO 2016/091855 A1 and JP 2005305452 A the application of media or water to the belt in the area of the belt switch is known for cooling and transport purposes.

Bei dem vorstehend genannten Stand der Technik trifft der Kopf eines aufzuwickelnden Bandes nach dem Passieren der Treibereinrichtung mit einem relativ hohen Impuls, bedingt durch die Geschwindigkeit und die Steifigkeit des Bandes, gegen die Bandweiche oder andere Bauteile, die in der Transportrichtung des Bandes gesehen nach bzw. stromabwärts der Bandweiche angeordnet sind. Die mechanische Führung bzw. Umleitung des Bandes, die im Wesentlichen durch einen Kontakt mit der Bandweiche erfolgt, führt in nachteiliger Weise dazu, dass ein Reibungswiderstand zwischen dem bewegten Band und den Kontaktflächen der Bandweiche besteht. Insbesondere bei dünnem Bandmaterial kann dies eine Transporthemmung verursachen, die zu einem Aufstau und ungünstiger Richtungsumlenkung des Bandmaterials führt. Dieser Nachteil besteht auch für den Fall, dass im Bereich der Bandweiche ein Fluid bzw. Wasser auf das Band gespritzt wird, dabei jedoch nicht ausreichende Kräfte auf das Band zwecks dessen Umlenkung hinein in den Führungsschacht erzeugt werden.In the above-mentioned prior art, the head of a tape to be wound hits the tape switch or other components that, viewed in the transport direction of the tape, after or after passing the driver device with a relatively high impulse, due to the speed and rigidity of the tape are arranged downstream of the belt switch. The mechanical guiding or diversion of the belt, which takes place essentially through contact with the belt switch, disadvantageously leads to a frictional resistance between the moving belt and the contact surfaces of the belt switch. In particular with thin strip material, this can cause a transport inhibition. which leads to a build-up and an unfavorable directional reversal of the strip material. This disadvantage also exists in the event that a fluid or water is sprayed onto the belt in the area of the belt switch, but insufficient forces are generated on the belt for the purpose of deflecting it into the guide shaft.

Aus DE 198 35 110 A1 ist ein Verfahren zum Aufwickeln eines metallischen Bandes nach dem Oberbegriff der Ansprüche 1 bzw. 3 bekannt.Out DE 198 35 110 A1 a method for winding a metallic tape according to the preamble of claims 1 and 3, respectively, is known.

Entsprechend liegt der Erfindung die Aufgabe zugrunde, eine Technologie zum Aufwickeln eines metallischen Bandes zu schaffen, mit der eine verbesserte Wickelqualität für das Band und in Bezug auf das hierzu eingesetzte Spritzwasser eine verbesserte Energieeffizienz erreicht wird.Accordingly, the invention is based on the object of creating a technology for winding a metallic strip with which an improved winding quality for the strip and, with regard to the spray water used for this purpose, an improved energy efficiency is achieved.

Diese Aufgabe wird durch ein mit den Merkmalen von Anspruch 1 bzw. von Anspruch 3 angegebenes Verfahren und durch eine Vorrichtung mit den Merkmalen von Anspruch 11 erreicht. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen definiert.This object is achieved by a method specified with the features of claim 1 or claim 3 and by a device with the features of claim 11. Advantageous further developments of the invention are defined in the dependent claims.

Ein Verfahren nach der vorliegenden Erfindung dient zum Aufwickeln eines metallischen Bandes, insbesondere eines Stahlbands. Dieses Verfahren sieht vor, dass das Band in einer Transportrichtung bewegt, durch eine Bandweiche in einen Führungsschacht hineingeführt und anschließend auf einen um eine Achse drehbar gelagerten Haspeldorn aufgewickelt wird. Im Bereich der Bandweiche wird ein Fluid auf das Band in Richtung des Führungsschachts aufgebracht, um das Einfädeln des Bandes in den Führungsschacht zu optimieren. Hierzu ist in der Bandweiche zumindest eine Öffnung ausgebildet ist, durch die das Wasser unter Druck auf das Band gespritzt wird. Hierbei wird als Fluid Wasser unter Druck verwendet, wobei der Wasserdruck derart eingestellt ist, dass auf das Band eine breitenspezifische Kraft zwischen 0,1 N/[mm Bandbreite] und 10 N/[mm Bandbreite] ausgeübt wird.A method according to the present invention is used for winding a metallic strip, in particular a steel strip. This method provides that the tape is moved in one transport direction, guided through a tape switch into a guide shaft and then wound onto a reel mandrel that is rotatably mounted about an axis. In the area of the belt switch, a fluid is applied to the belt in the direction of the guide shaft in order to optimize the threading of the belt into the guide shaft. For this purpose, at least one opening is formed in the belt switch through which the water is sprayed under pressure onto the belt. Here, water under pressure is used as the fluid, the water pressure being set such that a width-specific force between 0.1 N / [mm bandwidth] and 10 N / [mm bandwidth] is exerted on the band.

In vorteilhafter Weiterbildung kann für das vorstehend genannte Verfahren vorgesehen sein, dass im Bereich der Bandweiche das Wasser nur solange auf das Band aufgebracht wird, bis das Band mit seinem Bandkopf auf den Haspeldorn mit bis zu drei Windungen aufgewickelt worden ist. Gegebenenfalls kann das Spritzen von Wasser auf das Band im Bereich der Bandweiche bereits dann eingestellt werden, wenn das Band mit zumindest einer Windung, oder mit zwei Windungen, auf den Haspeldorn aufgewickelt worden ist.In an advantageous further development, it can be provided for the aforementioned method that the water only hits the belt in the area of the belt switch is applied until the tape head has been wound onto the reel mandrel with up to three turns. If necessary, the spraying of water onto the strip in the area of the strip switch can already be stopped when the strip has been wound onto the reel mandrel with at least one turn or with two turns.

Ein alternatives Verfahren nach der vorliegenden Erfindung dient ebenfalls zum Aufwickeln eines metallischen Bandes. Hierbei ist vorgesehen, dass das Band in einer Transportrichtung bewegt, durch eine Bandweiche in einen Führungsschacht hineingeführt und anschließend auf einen um eine Achse drehbar gelagerten Haspeldorn aufgewickelt wird, wobei im Bereich der Bandweiche ein Fluid auf das Band in Richtung des Führungsschachts aufgebracht wird. In der Bandweiche ist zumindest eine Öffnung ausgebildet ist, durch die das Wasser unter Druck auf das Band gespritzt wird. Als Fluid wird Wasser unter Druck verwendet, wobei im Bereich der Bandweiche das Wasser nur solange auf das Band aufgebracht wird, bis das Band mit seinem Bandkopf auf den Haspeldorn mit bis zu drei Windungen aufgewickelt worden ist. Gegebenenfalls kann das Spritzen von Wasser auf das Band im Bereich der Bandweiche bereits dann eingestellt werden, wenn das Band mit zumindest einer Windung, oder mit zwei Windungen, auf den Haspeldorn aufgewickelt worden ist.An alternative method according to the present invention is also used for winding a metallic tape. It is provided that the tape is moved in one transport direction, guided into a guide shaft through a tape switch and then wound onto a reel mandrel rotatably mounted around an axis, a fluid being applied to the tape in the direction of the guide slot in the area of the tape switch. In the belt switch there is at least one opening through which the water is sprayed onto the belt under pressure. Water under pressure is used as the fluid, with the water being applied to the strip in the area of the strip switch only until the strip head has been wound onto the reel mandrel with up to three turns. If necessary, the spraying of water onto the strip in the area of the strip switch can already be stopped when the strip has been wound onto the reel mandrel with at least one turn or with two turns.

In vorteilhafter Weiterbildung kann für das vorstehend genannte Verfahren vorgesehen sein, dass der Wasserdruck derart eingestellt ist, dass auf das Band eine breitenspezifische Kraft zwischen 0,1 N/[mm Bandbreite] und 10 N/[mm Bandbreite] ausgeübt wird.In an advantageous further development, it can be provided for the above-mentioned method that the water pressure is set such that a width-specific force of between 0.1 N / [mm bandwidth] and 10 N / [mm bandwidth] is exerted on the band.

Der Erfindung liegt die wesentliche Erkenntnis zugrunde, dass mit Hilfe des Wassers, das im Bereich der Bandweiche auf das Band gespritzt wird und zu einer breitenspezifischen Kraft zwischen 0,1 N/[mm Bandbreite] und 10 N/[mm Bandbreite] führt, auf das Band ein Druck bzw. eine Kraft ausgeübt wird, der bzw. die ausreichend groß ist, dass damit das Band eine wirkungsvolle Richtungsumlenkung hinein in den Führungsschacht erfährt. Anders ausgedrückt, wird die Richtungsumlenkung bzw. Führung des Bandes und seines Bandkopfes im Wesentlichen allein durch das unter Druck auf das Band gespritzte Wasser erzielt. Hierdurch ist sichergestellt, dass der mechanische Kontakt des Bandkopfes mit der Bandweiche vorteilhaft minimiert wird. Die Bandweiche bildet damit lediglich eine "Sicherheitsposition", wobei ein mechanischer Kontakt des Bandkopfes mit der Bandweiche dann tatsächlich bzw. spätestens ein Umlenken bzw. Führen des Bandes hinein in den Führungsschacht bewirkt.The invention is based on the essential knowledge that with the help of the water that is sprayed onto the belt in the area of the belt switch and leads to a width-specific force between 0.1 N / [mm belt width] and 10 N / [mm belt width] a pressure or a force is exerted on the tape which is sufficiently great that the tape is effectively deflected in direction into the guide shaft. In other words, the deflection or guidance of the tape and its tape head is achieved essentially solely by the water sprayed onto the tape under pressure. This ensures that the mechanical contact of the tape head with the tape switch is advantageously minimized. The belt switch thus only forms a "safety position", mechanical contact of the tape head with the belt switch then actually or at the latest causing the belt to be deflected or guided into the guide shaft.

Ein weiterer wesentlicher Aspekt der vorliegenden Erfindung besteht darin, dass beim Aufwickeln des Bandes die Energieeffizienz in Bezug auf das Ausspritzen des Wassers, das im Bereich der Bandweiche auf das Band aufgebracht wird, dadurch optimiert wird, dass ein solches Ausbringen bzw. Spritzen von Wasser auf das Band zwecks dessen Umlenkung hinein in den Führungsschacht nur solange erfolgt, wie das Band mit seinem Bandkopf auf den Haspeldorn mit bis zu drei Windungen aufgewickelt worden ist. Gegebenenfalls kann das Spritzen von Wasser auf das Band im Bereich der Bandweiche bereits dann eingestellt werden, wenn das Band mit zumindest einer Windung, oder mit zwei Windungen, auf den Haspeldorn aufgewickelt worden ist. Anders ausgedrückt, wird spätestens ab dem Zeitpunkt, zu dem das Band auf dem Haspeldorn mit zumindest einer vollständigen Windung, oder alternativ hierzu mit zwei oder drei vollständigen Windungen, aufgewickelt worden ist, das Ausbringen bzw. Spritzen von Wasser auf das Band im Bereich der Bandweiche gestoppt bzw. eingestellt. Dies ist deshalb möglich, weil ein Nachführen des Bandes hinein in den Führungsschacht durch das bereits auf dem Haspeldorn aufgewickelte Band sichergestellt ist, so dass hierzu eine Richtungsumlenkung mittels Wasserdruck weggelassen werden kann.Another essential aspect of the present invention is that when the tape is wound up, the energy efficiency with regard to the spraying of the water that is applied to the tape in the area of the tape switch is optimized by such an application or spraying of water the tape for the purpose of deflecting it into the guide shaft only takes place as long as the tape head has been wound onto the reel mandrel with up to three turns. If necessary, the spraying of water onto the strip in the area of the strip switch can already be stopped when the strip has been wound onto the reel mandrel with at least one turn or with two turns. In other words, at the latest from the point in time at which the tape has been wound on the reel mandrel with at least one complete turn, or alternatively with two or three complete turns, water is applied or sprayed onto the tape in the area of the tape switch stopped or set. This is possible because tracking of the strip into the guide shaft is ensured by the strip already wound on the reel mandrel, so that for this purpose a directional change by means of water pressure can be omitted.

In Bezug auf die zumindest eine Düse bzw. Düsenreihe, aus der im Bereich der Bandweiche das Wasser unter Druck auf das Band gespritzt wird, versteht sich, dass diese Düse bzw. Düsen derart ausgebildet sind, dass damit das Wasser auf das Band über dessen vollständige Breite aufgebracht werden kann. Hierdurch ist sichergestellt, dass auf das Band in seiner gesamten Breite durch das darauf gespritzte Wasser eine Kraft ausgeübt wird, um eine gleichmäßige Richtungsänderung bzw. -umkehrung in Richtung des Führungsschachts zu erzielen.With regard to the at least one nozzle or row of nozzles, from which the water is sprayed under pressure onto the belt in the area of the belt switch, it goes without saying that this nozzle or nozzles are designed in such a way that the water is applied to the belt over its entire length Width can be applied. This ensures that a force is exerted on the belt over its entire width by the water sprayed on it, in order to achieve a uniform change in direction or reversal in the direction of the guide shaft.

In vorteilhafter Weiterbildung der Erfindung kann vorgesehen sein, dass das Wasser unter Druck auf das Band im Bereich der Bandweiche durch zumindest eine Düse oder eine Düsenreihe ausgebracht wird, die in der Transportrichtung des Bandes gesehen stromaufwärts von einem Drehpunkt der Bandweiche angeordnet ist. Zweckmäßigerweise kann eine solche Düse bzw. Düsenreihe in der Transportrichtung des Bandes gesehen auch stromaufwärts einer Spitze der Bandweiche angeordnet sein. Hierdurch ist gewährleistet, dass der Bandkopf eines aufzuwickelnden Bandes nach dem Passieren einer Treibereinrichtung, die in der Transportrichtung des Bandes gesehen stromaufwärts der Bandweiche angeordnet ist, bereits vor einem Kontakt mit der Bandweiche durch das ausgespritzte Wasser eine Kraft bzw. Führung in Richtung des Führungsschachtes erfährt, und dadurch der mechanische Kontakt zur Bandweiche entweder minimiert wird oder gar nicht stattfindet.In an advantageous development of the invention, it can be provided that the water under pressure is applied to the belt in the area of the belt switch through at least one nozzle or a row of nozzles is deployed which, viewed in the direction of transport of the belt, is arranged upstream of a pivot point of the belt switch. Appropriately, such a nozzle or row of nozzles can also be arranged upstream of a tip of the belt switch, viewed in the direction of transport of the belt. This ensures that the tape head of a tape to be wound, after passing a driver device, which is located upstream of the tape switch in the transport direction of the tape, already experiences a force or guidance in the direction of the guide shaft before contact with the tape switch by the sprayed water , and thereby the mechanical contact with the belt switch is either minimized or does not take place at all.

Erfindungsgemäß ist vorgesehen, dass in der Bandweiche zumindest eine Öffnung ausgebildet ist, durch die das Wasser unter Druck auf das Band gespritzt wird. Zweckmäßigerweise kann eine solche Öffnung in Form einer Schlitzöffnung ausgebildet sein und sich über die Breite der Bandweiche erstrecken. Eine solche integrierte Ausbildung der Öffnung in der Bandweiche führt zu dem Vorteil eines verminderten Bauraums in Bezug auf die für das Ausspritzen des Wassers erforderliche Düsentechnik und zu einer Verminderung der beteiligten Bauteile, was Kosteneinsparungen ermöglicht.According to the invention it is provided that at least one opening is formed in the belt switch through which the water is sprayed onto the belt under pressure. Appropriately, such an opening can be designed in the form of a slot opening and extend over the width of the belt switch. Such an integrated design of the opening in the belt switch leads to the advantage of reduced installation space with regard to the nozzle technology required for spraying out the water and to a reduction in the number of components involved, which enables cost savings.

In vorteilhafter Weiterbildung der Erfindung kann das Wasser derart unter Druck auf das Band gespritzt werden, dass es eine Richtungskomponente in der Transportrichtung des Bandes aufweist. Hierdurch wird erreicht, dass ein künstlicher zusätzlicher Widerstand, der ansonsten durch das Aufspritzen von Wasser auf die Oberflächen des Bandes entstehen würde, vermieden wird. Anders ausgedrückt, wird durch die besagte Richtungskomponente, die mit bzw. in dem auf das Band ausgespritzten Wasser erzeugt wird, die Bewegung bzw. Führung des Bandes in Richtung des Haspeldorns optimiert.In an advantageous development of the invention, the water can be sprayed onto the belt under pressure in such a way that it has a directional component in the direction of transport of the belt. This avoids any artificial additional resistance which would otherwise arise from the spraying of water onto the surfaces of the belt. In other words, the said directional component, which is generated with or in the water sprayed onto the strip, optimizes the movement or guidance of the strip in the direction of the reel mandrel.

In vorteilhafter Weiterbildung der Erfindung kann innerhalb des Führungsschachts ein Transportfluid auf das Band gerichtet werden. Hierbei ist es zweckmäßig, dass dieses Transportfluid eine Richtungskomponente in Richtung des Haspeldorns aufweist, wodurch die Bewegung des Bandes in Richtung des Haspeldorns gefördert wird. Bei diesem Transportfluid kann es sich um Druckluft und/oder um Wasser unter Druck handeln. Jedenfalls wird durch dieses Transportfluid der Vorteil erreicht, dass das Band innerhalb des Führungsschachtes mit verringerten Reibungskontakten, die ansonsten mit den Begrenzungsbereichen des Führungsschachtes entstehen, in Richtung des Haspeldorns transportiert wird. Vorzugsweise wird das Transportfluid von beiden Seiten des Bandes her auf die Oberflächen davon ausgebracht bzw. gespritzt.In an advantageous further development of the invention, a transport fluid can be directed onto the belt within the guide shaft. It is useful here that this transport fluid has a directional component in the direction of the reel mandrel, which promotes the movement of the strip in the direction of the reel mandrel becomes. This transport fluid can be compressed air and / or water under pressure. In any case, this transport fluid has the advantage that the strip is transported within the guide shaft in the direction of the reel mandrel with reduced frictional contacts that would otherwise arise with the boundary areas of the guide shaft. The transport fluid is preferably applied or sprayed onto the surfaces thereof from both sides of the belt.

In vorteilhafter Weiterbildung der Erfindung kann vorgesehen sein, dass das Wasser im Bereich der Bandweiche und/oder das Transportfluid innerhalb des Führungsschachts ausgebracht werden, sobald der Bandkopf des Bandes einen vorbestimmten Abstand zu einer Treibereinrichtung, die in der Transportrichtung des Bandes stromaufwärts der Bandweiche angeordnet ist und zum Antreiben des Bandes in der Transportrichtung in Kontakt damit gelangt, stromaufwärts hiervon unterschreitet. Anders ausgedrückt, wird das Ausspritzen von Wasser unter Druck im Bereich der Bandweiche und/oder das Aufbringen des Transportfluids auf das Band innerhalb des Führungsschachtes dann gestartet, kurz bevor der Bandkopf des bewegten Bandes die Treibereinrichtung erreicht. Dieses "Timing" in Bezug auf den Beginn des Ausbringens des Wassers unter Druck bzw. des Transportfluids wird durch die Festlegung des vorbestimmten Abstands stromaufwärts der Treibereinrichtung realisiert und kann mithilfe eines Sensors überwacht werden, der an der Stelle dieses vorbestimmten Abstands angeordnet ist. Sobald der Bandkopf des bewegten Bandes an den Sensor vorbeitritt, wird durch den Sensor ein entsprechendes Steuersignal erzeugt und damit das Ausbringen des Wassers unter Druck im Bereich der Bandweiche bzw. des Transportfluids innerhalb des Führungsschachts eingeleitet. Entsprechend ist damit sichergestellt, dass die gewünschte Richtungsbeeinflussung bzw. -umlenkung des Bandes tatsächlich umgehend einsetzt, wenn der Bandkopf des Bandes die Bandweiche erreicht.In an advantageous development of the invention, it can be provided that the water in the area of the belt switch and / or the transport fluid within the guide shaft are discharged as soon as the tape head of the tape is a predetermined distance from a driver device that is arranged upstream of the belt switch in the transport direction of the belt and comes into contact therewith for driving the belt in the transport direction, falls below upstream thereof. In other words, the spraying of water under pressure in the area of the belt switch and / or the application of the transport fluid to the belt within the guide shaft is started shortly before the head of the moving belt reaches the driver device. This "timing" in relation to the start of the application of the water under pressure or the transport fluid is implemented by defining the predetermined distance upstream of the driving device and can be monitored with the aid of a sensor which is arranged at the location of this predetermined distance. As soon as the head of the moving belt passes the sensor, a corresponding control signal is generated by the sensor and the application of the water under pressure in the area of the belt switch or the transport fluid within the guide shaft is initiated. It is accordingly ensured that the desired influencing or deflection of the direction of the tape actually starts immediately when the tape head of the tape reaches the tape switch.

Die Erfindung sieht ebenfalls eine Vorrichtung zum Aufwickeln eines metallischen Bandes, insbesondere eines Stahlbands, vor und umfasst einen Haspeldorn zum Aufwickeln des Bandes, einen Führungsschacht, der in Transportrichtung des Bandes gesehen stromaufwärts des Haspeldorns angeordnet ist, eine Bandweiche, mittels der ein Hineinführen des Bandes in den Führungsschacht erfolgt, zumindest eine im Bereich der Bandweiche angeordnete Düse oder Düsenreihe, durch die Wasser unter Druck auf das Band ausbringbar ist, und eine Steuereinrichtung, mittels der das Ausbringen von Wasser auf das Band im Bereich der Bandweiche gesteuert bzw. geregelt werden kann. In der Bandweiche ist zumindest eine Öffnung ausgebildet ist, durch die das Wasser unter Druck auf das Band gespritzt werden kann. Die Steuereinrichtung ist programmtechnisch derart eingerichtet, dass im Bereich der Bandweiche das Wasser unter Druck nur solange auf das Band ausgebracht wird, bis das Band mit seinem Bandkopf auf den Haspeldorn mit zumindest einer Windung, vorzugsweise mit zumindest zwei Windungen, weiter vorzugsweise mit bis zu drei Windungen aufgewickelt worden ist.The invention also provides a device for winding a metallic strip, in particular a steel strip, and comprises a reel mandrel for winding the band, a guide shaft which is arranged upstream of the reel mandrel, as seen in the transport direction of the band, a band switch, by means of which the strip is introduced into the guide shaft, at least one nozzle or row of nozzles arranged in the area of the strip switch, through which water can be applied to the strip under pressure, and a control device, by means of which the application of water onto the strip in the area of the strip switch can be controlled or regulated. At least one opening is formed in the belt switch through which the water can be sprayed onto the belt under pressure. The control device is programmed in such a way that in the area of the strip switch the water is only applied under pressure to the strip until the strip with its strip head hits the reel mandrel with at least one turn, preferably with at least two turns, more preferably with up to three Turns has been wound.

In vorteilhafter Weiterbildung der Erfindung kann die vorstehend genannte Vorrichtung einen ersten Sensor aufweisen, der in einem vorbestimmten Abstand stromaufwärts der Treibereinrichtung angeordnet ist und mit der Steuereinrichtung signaltechnisch in Verbindung steht. Mittels dieses ersten Sensors ist es möglich zu erkennen, wann der Bandkopf des Bandes im Bereich der Bandweiche eintrifft, um dann in Abhängigkeit hiervon das Ausbringen von Wasser auf das Band entsprechend zu steuern.In an advantageous further development of the invention, the aforementioned device can have a first sensor which is arranged at a predetermined distance upstream of the driver device and is in signal connection with the control device. By means of this first sensor it is possible to recognize when the tape head of the tape arrives in the area of the tape switch in order to then control the application of water on the tape as a function thereof.

In vorteilhafter Weiterbildung der Erfindung kann die vorstehend genannte Vorrichtung einen zweiten Sensor aufweisen, der angrenzend zum Haspeldorn angeordnet ist und mit der Steuereinrichtung signaltechnisch in Verbindung steht. Durch ein Signal des zweiten Sensors ist es möglich zu detektieren, zu welchem Zeitpunkt das Band in welchem Maß bzw. mit welcher Anzahl von Windungen auf dem Haspeldorn aufgewickelt worden ist, um in Abhängigkeit hiervon das Ausbringen bzw. Ausspritzen von Wasser auf das Band im Bereich der Bandweiche abzustellen.In an advantageous development of the invention, the above-mentioned device can have a second sensor which is arranged adjacent to the reel mandrel and is in signal connection with the control device. By means of a signal from the second sensor, it is possible to detect at what point in time the tape has been wound on the reel mandrel, to what extent or with what number of turns, in order, depending on this, to dispense or spray water onto the tape in the area turn off the belt switch.

In gleicher Weise wie bereits zu dem entsprechenden obigen Verfahren erläutert, führt die erfindungsgemäße Vorrichtung zu dem Vorteil einer verbesserten Energieeffizienz in Bezug auf das Ausspritzen von Wasser unter Druck auf das Band im Bereich der Bandweiche. Das Ausspritzen von Wasser auf das Band wird nämlich nur zu Beginn des Wickelvorgangs durchgeführt, wenn der Bandkopf des Bandes erstmalig an der Bandweiche vorbeibewegt wird, wobei dieses Ausspritzen gestoppt wird, sobald das Band auf dem Haspeldorn mit zumindest einer Windung, vorzugsweise mit bis zu drei Windungen aufgewickelt worden ist.In the same way as already explained for the corresponding above method, the device according to the invention leads to the advantage of improved energy efficiency with regard to the spraying of water under pressure onto the belt in the area of the belt switch. The spraying of water onto the tape is carried out only at the beginning of the winding process when the tape head of the tape is moved past the strip switch for the first time, this ejection being stopped as soon as the strip has been wound on the reel mandrel with at least one turn, preferably with up to three turns.

Nachstehend ist eine Ausführungsform der Erfindung anhand einer schematisch vereinfachten Zeichnung im Detail beschrieben. Die hierzu gehörende Fig. 1 zeigt eine vereinfachte Seitenansicht einer erfindungsgemäßen Vorrichtung 10 zum Aufwickeln eines metallischen Bandes, mit der auch das entsprechende Verfahren durchgeführt werden kann. Gleiche Merkmale in der Zeichnung sind jeweils mit gleichen Bezugszeichen versehen. An dieser Stelle wird gesondert darauf hingewiesen, dass die Darstellung in der Fig. 1 lediglich vereinfacht und insbesondere ohne Maßstab gezeigt ist.An embodiment of the invention is described in detail below with reference to a schematically simplified drawing. The associated Fig. 1 shows a simplified side view of a device 10 according to the invention for winding a metallic strip, with which the corresponding method can also be carried out. The same features in the drawing are each provided with the same reference symbols. At this point, it is pointed out separately that the representation in the Fig. 1 is only shown in a simplified and in particular without scale.

Die Vorrichtung 10 erfüllt die Funktion einer Haspeleinrichtung und dient dazu, ein metallisches Band 11, welches in einer Transportrichtung T bewegt bzw. gefördert wird, aufzuwickeln. Hierzu umfasst die Vorrichtung 10 einen Haspeldorn 12, der um eine Achse 13 drehbar gelagert ist, wobei das Band 11 in Richtung des Haspeldorns 12 bewegt wird. Des Weiteren umfasst die Vorrichtung 10 einen Führungsschacht 14 und eine Bandweiche15, die - in der Transportrichtung T des Bandes 11 gesehen - stromaufwärts des Führungsschachtes 14 angeordnet ist. Die Bandweiche 15 ist um einen stationären Drehpunkt 16 gelagert, und kann entsprechend um diesen Drehpunkt 16 verschwenkt werden.The device 10 fulfills the function of a reel device and serves to wind up a metallic strip 11, which is moved or conveyed in a transport direction T. For this purpose, the device 10 comprises a reel mandrel 12, which is mounted rotatably about an axis 13, the strip 11 being moved in the direction of the reel mandrel 12. Furthermore, the device 10 comprises a guide shaft 14 and a belt switch 15, which - viewed in the transport direction T of the belt 11 - is arranged upstream of the guide shaft 14. The belt switch 15 is mounted around a stationary pivot point 16 and can accordingly be pivoted around this pivot point 16.

Im Bereich der Bandweiche 15 sind Düsen bzw. Düsenreihen 18 vorgesehen, die jeweils - in der Transportrichtung T des Bandes 11 gesehen - stromaufwärts von dem Drehpunkt 16 der Bandweiche 15 angeordnet sind. Diese Düsen bzw. Düsenreihen 18 können in Form von separaten Düsen ausgebildet sein, und/oder in Form von zumindest einer Öffnung vorgesehen sein, die als Schlitzdüse in einer Fläche an der Unterseite der Bandweiche 15, die dem Band 11 zugewandt ist, ausgebildet ist. Die zumindest eine Düse bzw. Düsenreihe 18 dient dazu, Wasser unter Druck auf das Band 11 zu spritzen, was nachfolgend noch gesondert erläutert ist.In the area of the belt switch 15, nozzles or rows of nozzles 18 are provided, each of which - viewed in the transport direction T of the belt 11 - are arranged upstream of the pivot point 16 of the belt switch 15. These nozzles or rows of nozzles 18 can be designed in the form of separate nozzles and / or in the form of at least one opening which is designed as a slot nozzle in a surface on the underside of the belt switch 15 facing the belt 11. The at least one nozzle or nozzle row 18 is used to spray water under pressure onto the belt 11, which is explained separately below.

Bei der in Fig. 1 dargestellten Ausführungsform sind stromaufwärts der Bandweiche 15 zwei Düsenreihen 18 vorgesehen, die - in der Transportrichtung T des Bandes 11 gesehen - hintereinander angeordnet sind. Durch eine solche Hintereinanderanordnung bzw. "Reihenschaltung" von Düsenreihen 18 kann die resultierende Kraft, die mittels des ausgespritzten Wassers auf das Band 11 ausgeübt wird, optimiert bzw. vergrößert werden.At the in Fig. 1 The illustrated embodiment, two rows of nozzles 18 are provided upstream of the belt switch 15, which - viewed in the transport direction T of the belt 11 - are arranged one behind the other. By such a series arrangement or "series connection" of rows of nozzles 18, the resulting force which is exerted on the belt 11 by means of the sprayed water can be optimized or increased.

Die Vorrichtung 10 umfasst eine Treibereinrichtung 19, die - in der Transportrichtung T des Bandes 11 gesehen ist - stromaufwärts der Bandweiche 15 angeordnet ist. Die Treibereinrichtung 19 weist zumindest eine angetriebene Walze auf, die bei ihrer Rotation in Kontakt mit dem Band 11 gelangt und dieses damit in die Transportrichtung T bewegt bzw. fördert.The device 10 comprises a driver device 19 which - viewed in the transport direction T of the belt 11 - is arranged upstream of the belt switch 15. The driver device 19 has at least one driven roller which, as it rotates, comes into contact with the belt 11 and thus moves or conveys it in the transport direction T.

Der Führungsschacht 14 wird gebildet aus einem Leittisch 20 und einer gegenüberliegend hierzu angeordneten Schachtklappe 21. An einem Ende der Schachtklappe 21, angrenzend zum Haspeldorn 12, ist eine Schachtklappenrolle 22 vorgesehen, mit der eine Führung des Bandes 11 zum Haspeldorn 12 sichergestellt ist.The guide shaft 14 is formed from a guide table 20 and a shaft flap 21 arranged opposite thereto. At one end of the shaft flap 21, adjacent to the reel mandrel 12, a shaft flap roller 22 is provided, with which the strip 11 is guided to the reel mandrel 12.

Innerhalb des Führungsschachts 14 sind weitere Düsen bzw. Düsenreihen vorgesehen, nämlich Düsen bzw. Düsenreihen 23a, die auf eine Unterseite des Bands 11 gerichtet sind, und Düsen bzw. Düsenreihen 23b, die auf eine Oberseite des Bands 11 gerichtet sind. Durch diese Düsen bzw. Düsenreihen 23a, 23b wird während des Aufwickelns des Bands 11 auf dem Haspeldorn 12 ein Transportfluid auf die Oberflächen des Bands 11 ausgebracht, was nachstehend noch gesondert erläutert ist.Further nozzles or rows of nozzles are provided within the guide shaft 14, namely nozzles or rows of nozzles 23a, which are directed towards an underside of the belt 11, and nozzles or rows of nozzles 23b, which are directed towards an upper side of the belt 11. By means of these nozzles or rows of nozzles 23a, 23b, a transport fluid is applied to the surfaces of the belt 11 during the winding of the strip 11 onto the reel mandrel 12, which is explained separately below.

Um den Umfang des Haspeldorns 12 herum sind mehrere Wickelrollen mit zugeordneten Umlenkschilden, die ein Aufwickeln des Bands 11 auf dem Haspeldorn 12 gewährleisten, wenn ein Bandkopf 11K nach einem Hindurchtreten durch den Führungsschacht 14 den Haspeldorn 12 erreicht. Im Einzelnen sind dies die Wickelrollen 24, 26 und 28, mit den jeweils zugeordneten Umlenkschilden 25, 27 und 29.Around the circumference of the reel mandrel 12 are several winding rollers with associated deflection plates which ensure that the tape 11 is wound onto the reel mandrel 12 when a tape head 11K reaches the reel mandrel 12 after passing through the guide shaft 14. In detail, these are the winding rollers 24, 26 and 28, with the respective associated deflection plates 25, 27 and 29.

Die Vorrichtung 10 umfasst des Weiteren auch eine Steuereinrichtung 30. Über eine Signalverbindung bzw. Signalstrecke 31, die in der Fig. 1 vereinfacht mit punktierten Linien symbolisiert ist, steht diese Steuereinrichtung 30 in Signalverbindung mit einem ersten Sensor 32, der in einem vorbestimmten Abstand stromaufwärts der Treibereinrichtung 19 angeordnet ist, und mit einem zweiten Sensor 34, der angrenzend zum Haspeldorn 12 angeordnet ist. Zusätzlich ist es mittels der Steuereinrichtung 30 möglich, das Wasser, welches im Bereich der Bandweiche 15 aus der zumindest einen Düse bzw. Düsenreihe 18 auf das Band 11 gespritzt wird, und/oder das Transportfluid, welches im Bereich des Führungsschachtes 14 aus den Düsen bzw. Düsenreihen 23a, 23b auf die Unter- und Oberseite des Bands 11 gerichtet bzw. ausgebracht wird, zu steuern bzw. zu regeln. Zu diesem Zweck ist die Steuereinrichtung 30 mit geeigneten Pump- bzw. Fördereinrichtungen signaltechnisch verbunden, mit denen das Wasser unter Druck zu der Düse bzw. Düsenreihe 18 bzw. das Transportfluid zu den Düsen bzw. Düsenreihen 23a, 23b gefördert wird.The device 10 also includes a control device 30. Via a signal connection or signal path 31, which is shown in FIG Fig. 1 Simplified with dotted lines, this control device 30 is in signal connection with a first sensor 32, which is arranged at a predetermined distance upstream of the driver device 19, and with a second sensor 34, which is arranged adjacent to the reel mandrel 12. In addition, it is possible by means of the control device 30 to control the water which is sprayed onto the belt 11 in the area of the belt switch 15 from the at least one nozzle or row of nozzles 18, and / or the transport fluid which is sprayed from the nozzles or in the area of the guide shaft 14 Rows of nozzles 23a, 23b are directed or discharged onto the lower and upper sides of the belt 11, to control or regulate. For this purpose, the control device 30 is signal-connected to suitable pumping or conveying devices with which the water is conveyed under pressure to the nozzle or row of nozzles 18 or the transport fluid is conveyed to the nozzles or rows of nozzles 23a, 23b.

Die Erfindung funktioniert nun wie folgt:
Das Band 11, welches mittels der Vorrichtung 10 auf deren Haspeldorn 12 aufzuwickeln ist, erreicht die Treibereinrichtung 19 - bezogen auf die Darstellung von Fig. 1 - von links, und wird dabei in Richtung der Treibereinrichtung 19 bewegt. Der Kontakt von zumindest einer angetriebenen Walze der Treibereinrichtung 19 mit dem Band 11 führt dazu, dass dieses weiter in Richtung der Bandweiche 15 bewegt wird.The invention now works as follows:
The tape 11, which is to be wound onto its reel mandrel 12 by means of the device 10, reaches the driver device 19 - based on the illustration of FIG Fig. 1 - From the left, and is moved in the direction of the driver device 19. The contact of at least one driven roller of the driver device 19 with the belt 11 leads to the belt 11 being moved further in the direction of the belt switch 15.

Sobald ein Bandkopf 11K des Bandes 11 den ersten Sensor 32 passiert hat, wird ein entsprechendes Signal an die Steuereinrichtung 30 übermittelt, wobei anschließend mittels der Steuereinrichtung 30 ein Ausspritzen von Wasser unter Druck durch die Düsenreihen 18 in Richtung des Führungsschachts 14 in Gang gesetzt bzw. eingeleitet wird. In Folge dessen wird das Band 11, wenn dessen Bandkopf 11K die Düsenreihen 18 erreicht, unmittelbar bzw. sofort von seiner Oberseite her mit dem Wasserdruck beaufschlagt. Der Druck für das aus den Düsenreihen 18 ausgespritzte Wasser ist derart gewählt, dass auf das Band 11 eine breitenspezifische Kraft ausgeübt wird, die zwischen 0,1 N/[mm Bandbreite] und 10 N/[mm Bandbreite] liegt, je nach Beschaffenheit und Dicke des Bands 11. Jedenfalls ist der Druck für das durch die Düsenreihe(n) 18 ausgespritzte Wasser und die daraus resultierende breitenspezifische Kraft, die auf das Band 11 wirkt, ausreichend hoch gewählt, dass mit dieser Kraft das Band 11 in Richtung des Führungsschachts 14 umgelenkt wird. Bei einer solchen Umlenkung bzw. Richtungsänderung für das Band 11 wird das Ziel verfolgt, dass ein mechanischer Kontakt zwischen dem Bandkopf 11K und der Bandweiche 15 zumindest minimiert wird oder gar nicht mehr stattfindet. Letzterenfalls bedeutet dies, dass ein Führen bzw. Umlenken des Bandkopfes 11K des Bandes 11 hinein in den Führungsschacht 14 allein durch die Kraft des durch die Düsenreihe(n) 18 ausgespritzten Wassers erfolgt.As soon as a tape head 11K of the tape 11 has passed the first sensor 32, a corresponding signal is transmitted to the control device 30, with the control device 30 then initiating or injecting water under pressure through the rows of nozzles 18 in the direction of the guide shaft 14. is initiated. As a result, the tape 11, when its tape head 11K reaches the nozzle rows 18, is immediately or immediately acted upon by the water pressure from its upper side. The pressure for the water sprayed out of the rows of nozzles 18 is selected such that a width-specific force is exerted on the band 11, which is between 0.1 N / [mm band width] and 10 N / [mm band width], depending on the condition and Thickness of the belt 11. In any case, the pressure for the water sprayed through the row (s) of nozzles 18 and the resulting width-specific force that acts on the belt 11 is selected to be sufficiently high that this force pushes the belt 11 in the direction of the guide shaft 14 is diverted. With such a deflection or change of direction for the tape 11, the aim is pursued that a mechanical contact between the tape head 11K and the tape switch 15 is at least minimized or no longer takes place at all. In the latter case, this means that the tape head 11K of the tape 11 is guided or deflected into the guide slot 14 solely by the force of the water sprayed through the row (s) of nozzles 18.

In der Fig. 1 ist das Band 11 und der resultierende Bandverlauf, der sich mit Nutzung der vorliegenden Erfindung, d.h. mit dem Ausspritzen von Wasser unter Druck auf das Band 11 durch die Düsenreihe(n) 18 einstellt, im Bereich des Führungsschachts 14 durch die gestrichelte Linie 42 angedeutet. Demgegenüber ist der Bandverlauf, der sich ohne die Nutzung der Erfindung, d.h. ohne das Ausspritzen von Wasser unter Druck durch die Düsenreihe(n) 18 einstellt, in der Fig. 1 im Bereich des Führungsschachts 14 durch die Volllinie 40 skizziert.In the Fig. 1 the belt 11 and the resulting belt course, which is established with the use of the present invention, ie with the spraying of water under pressure onto the belt 11 through the nozzle row (s) 18, is indicated in the region of the guide shaft 14 by the dashed line 42. In contrast, the course of the band, which occurs without the use of the invention, ie without spraying water under pressure through the nozzle row (s) 18, is in the Fig. 1 outlined in the area of the guide shaft 14 by the solid line 40.

Nachdem das Band 11 mit seinem Bandkopf 11K in den Führungsschacht 14 eingetreten ist, wird die Führung des Bands 11 durch den Führungsschacht 14 hindurch in Richtung des Haspeldorns 12 mittels des Transportfluids unterstützt, welches aus den Düsenreihen 23a, 23b von beiden Seiten her auf die Oberflächen des Bands 11 gerichtet wird. Bei dem Transportfluid kann es sich um Druckluft und/oder um Wasser unter Druck handeln.After the tape 11 with its tape head 11K has entered the guide slot 14, the guidance of the tape 11 through the guide slot 14 in the direction of the reel mandrel 12 is supported by means of the transport fluid, which from the nozzle rows 23a, 23b onto the surfaces from both sides of the belt 11 is directed. The transport fluid can be compressed air and / or water under pressure.

Sobald der Bandkopf 11K den Haspeldorn 12 erreicht hat, wie in der Darstellung von Fig. 1 veranschaulicht, wird durch die um den Haspeldorn 12 herum angeordneten Wickelrollen 24, 26, 28 und den jeweils zugeordneten Umlenkschilden 25, 27, 29 ein Aufwickeln des Bandes 11 auf den Haspeldorn 12 erzielt. Hierbei kann der Haspeldorn 12 um die Achse 13 motorisch angetrieben sein, bei der Ansicht von Fig. 1 im Uhrzeigersinn.As soon as the tape head 11K has reached the reel mandrel 12, as shown in FIG Fig. 1 As illustrated, the winding rollers 24, 26, 28 arranged around the reel mandrel 12 and the associated deflection shields 25, 27, 29 are used to wind the tape 11 onto the reel mandrel 12. Here, the reel mandrel 12 can be motor-driven about the axis 13, when viewed from FIG Fig. 1 clockwise.

Die Anzahl der Windungen, mit denen das Band 11 auf den Haspeldorn 12 aufgewickelt worden ist, kann mithilfe des Sensors 34 detektiert werden.The number of turns with which the strip 11 has been wound onto the reel mandrel 12 can be detected with the aid of the sensor 34.

Sobald mittels des Sensors 34 detektiert wird, dass das Band 11 auf dem Haspeldorn 12 mit bis zu drei vollständigen Windungen, oder ggf. bereits mit einer Windung oder mit zwei Windungen, aufgewickelt worden ist, wird ein entsprechendes Signal von den Sensor 34 an die Steuereinrichtung 30 ausgegeben, wonach dann von der Steuereinrichtung 30 die Wasserzufuhr an die Düsenreihe(n) 18 gestoppt wird. Dies hat zur Folge, dass dann ein weiteres Aufwickeln des Bandes 11 auf den Haspeldorn 12 durchgeführt wird, ohne dass dabei Wasser unter Druck im Bereich der Bandweiche 15 auf das Band 11 gespritzt wird. Dies führt zu einer Einsparung von druckbeaufschlagtem Wasser und damit vorteilhaft zu verminderten Kosten beim Aufwickeln des Bandes 11.As soon as it is detected by means of the sensor 34 that the strip 11 has been wound on the reel mandrel 12 with up to three complete turns, or possibly already with one turn or with two turns, a corresponding signal is sent from the sensor 34 to the control device 30 output, after which the water supply to the nozzle row (s) 18 is stopped by the control device 30. This then has the consequence that another The tape 11 is wound onto the reel mandrel 12 without water being sprayed onto the tape 11 under pressure in the area of the tape switch 15. This leads to a saving of pressurized water and thus advantageously to reduced costs when winding the tape 11.

BezugszeichenlisteList of reference symbols

1010
Vorrichtungcontraption
1111
metallisches Bandmetallic tape
11K11K
BandkopfTape head
1212
HaspeldornReel mandrel
1313
Achse (um die der Haspeldorn 12 drehbar gelagert ist)Axis (around which the reel mandrel 12 is rotatably mounted)
1414th
FührungsschachtGuide shaft
1515th
BandweicheBelt switch
1616
Drehpunkt (der Bandweiche 15)Pivot point (of the belt switch 15)
1818th
Düse bzw. Düsenreihe (im Bereich der Bandweiche 15)Nozzle or row of nozzles (in the area of the belt switch 15)
1919th
TreibereinrichtungDriver setup
2020th
LeittischControl table
2121st
SchachtklappeManhole cover
2222nd
SchachtklappenrolleShaft flap roller
23a23a
Düsen/Düsenreihe (im Führungsschacht 14, unterhalb des Bandes 11)Nozzles / row of nozzles (in guide shaft 14, below belt 11)
23b23b
Düsen/Düsenreihe (im Führungsschacht 14, oberhalb des Bandes 11)Nozzles / row of nozzles (in the guide shaft 14, above the belt 11)
2424
erste Wickelrollefirst winding roll
2525th
Umlenkschild (der ersten Wickelrolle 23)Deflection shield (of the first winding roll 23)
2626th
zweite Wickelrollesecond winding roll
2727
Umlenkschild (der zweiten Wickelrolle 25)Deflection shield (of the second winding roll 25)
2828
dritte Wickelrollethird winding roll
2929
Umlenkschild (der dritten Wickelrolle 27)Deflection shield (of the third winding roll 27)
3030th
SteuereinrichtungControl device
3131
Signalverbindung bzw. SignalstreckeSignal connection or signal path
3232
erster Sensorfirst sensor
3434
zweiter Sensorsecond sensor
4040
Band/Bandverlauf ohne Nutzung der ErfindungBand / band course without using the invention
4242
Band/Bandverlauf mit Nutzung der ErfindungBand / band course using the invention
TT
TransportrichtungTransport direction

Claims (11)

  1. Method of winding up a metallic strip (11), particularly a steel strip, in which the strip (11) is moved in a transport direction (T), led through a strip diverter (15) into a guide shaft (14) and subsequently wound up on a coiler mandrel (12) mounted to be rotatable about an axis (13), wherein in the region of the strip diverter (15) a fluid is applied to the strip (11) in the direction of the guide shaft (14),
    characterised in that
    at least one opening through which the water is sprayed under pressure onto the strip (11) is formed in the strip diverter (15) and
    water under pressure is used as fluid, wherein the water pressure is set in such a way that a width-specific force between 0.1 N/mm of strip width and 10 N/mm of strip width is exerted on the strip (11).
  2. Method according to claim 1, characterised in that in the region of the strip diverter (15) the water is applied to the strip (11) only until the strip (11) has been wound up by its strip head (11K) on the coiler mandrel (12) by up to three windings.
  3. Method of winding up a metallic strip (11), particularly a steel strip, in which the strip (11) is moved in a transport direction (T), led through a strip diverter (15) into a guide shaft (14) and subsequently wound up on a coiler mandrel (12) mounted to be rotatable about an axis (13), wherein in the region of the strip diverter (15) a fluid is applied to the strip (11) in the direction of the guide shaft (14),
    characterised in that
    at least one opening through which the water is sprayed under pressure onto the strip (11) is formed in the strip diverter (15),
    water under pressure is used as fluid and
    that in the region of the strip diverter (15) the water is applied to the strip (11) only until the strip (11) has been wound up by its strip head (11K) on the coiler mandrel (12) by up to three windings.
  4. Method according to claim 3, characterised in that the water pressure is set in such a way that a width-specific force between 0.1 N/mm of strip width and 10 N/mm of strip width is exerted on the strip (11).
  5. Method according to any one of the preceding claims, characterised in that the water is applied under pressure to the strip (11) in the region of the strip diverter (15) through at least one nozzle or a nozzle row (18) which as seen in the transport direction (T) of the strip (11) is arranged upstream of a fulcrum of the strip diverter (15).
  6. Method according to claim 5, characterised in that the at least one nozzle or nozzle row (18) as seen in the transport direction (T) of the strip (11) is arranged upstream of a tip of the strip diverter (15).
  7. Method according to claim 5 or 6, characterised in that the water is sprayed under pressure onto the strip (11) in such a way that it has a directional component in the transport direction (T) of the strip (11).
  8. Method according to any one of the preceding claims, characterised in that a transport fluid is directed onto the strip (11) within the guide shaft (14), preferably such that the transport fluid has a directional component in the direction of the coiler mandrel (12).
  9. Method according to claim 8, characterised in that compressed air and/or water under pressure is or are selected as transport fluid.
  10. Method according to any one of the preceding claims, characterised in that the water is delivered into the region of the strip diverter (15) and/or the transport fluid is delivered within the guide shaft (14) as soon as the strip head (11K) of the strip (11) has exceeded a predetermined spacing from a driver device (19) upstream thereof, which device is arranged in the transport direction (T) of the strip (11) upstream of the strip diverter (15) and comes into contact therewith for driving the strip (11) in the transport direction (T).
  11. Device (10) for winding up a metallic strip (11), particularly a steel strip, comprising
    a coiler mandrel (12) for winding up the strip (11), wherein the coiler mandrel (12) is mounted to be rotatable about an axis (13),
    a guide shaft (14) which as seen in the transport direction (T) of the strip (11) is arranged upstream of the coiler mandrel (12),
    a strip diverter (15) by means of which guidance of the strip (11) into the guide shaft (14) takes place,
    at least one nozzle or nozzle row (18), which is arranged in the region of the strip diverter (15) and through which water under pressure can be delivered to the strip (11), and
    a control device (20) by means of which the delivery of water to the strip (11) in the region of the strip diverter (15) is controllable or regulable,
    characterised in that
    at lest one opening through which the water can be sprayed under pressure onto he strip (11) is formed in the strip diverter (15) and
    the control device (20) is equipped in such a way in terms of program that in the region of the strip diverter (15) the water is delivered under pressure to the strip (11) only until the strip (11) by its strip head (11K) has been wound up on the coiler mandrel (12) by up to three windings.
EP19151583.2A 2018-01-16 2019-01-14 Device and method for coiling a metallic strip Active EP3511083B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018200638 2018-01-16
DE102019200196.3A DE102019200196A1 (en) 2018-01-16 2019-01-10 Apparatus and method for winding a metallic strip

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EP3511083A1 EP3511083A1 (en) 2019-07-17
EP3511083B1 true EP3511083B1 (en) 2020-09-16

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112551219B (en) * 2020-11-18 2023-06-13 湖北立晋钢铁集团有限公司 Groove steel coil pressing device

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
JP2550117B2 (en) * 1987-12-16 1996-11-06 株式会社日立製作所 Carousel reel equipment
US6578789B1 (en) * 1998-08-04 2003-06-17 Sms Schloemann-Siemag Aktiengesellschaft Deflection method and deflection device for a strip, especially a metal strip
JP2000233218A (en) * 1999-02-15 2000-08-29 Mitsubishi Heavy Ind Ltd Steel strip coiling device
JP3380490B2 (en) * 1999-03-25 2003-02-24 川崎製鉄株式会社 Carousel reel type winding equipment for continuous hot rolling line
JP4358673B2 (en) 2004-04-16 2009-11-04 新日本製鐵株式会社 Strip winding method and apparatus
DE102009058875A1 (en) * 2009-12-18 2011-07-07 SMS Siemag AG, 40237 A reel device and method for operating a reel device
WO2016091855A1 (en) 2014-12-10 2016-06-16 Sms Group Gmbh Apparatus for winding up a metal strip

Non-Patent Citations (1)

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Title
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