EP4101556A1 - Section de rouleau pour une large gamme d'épaisseur de bandes métalliques - Google Patents

Section de rouleau pour une large gamme d'épaisseur de bandes métalliques Download PDF

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Publication number
EP4101556A1
EP4101556A1 EP21178767.6A EP21178767A EP4101556A1 EP 4101556 A1 EP4101556 A1 EP 4101556A1 EP 21178767 A EP21178767 A EP 21178767A EP 4101556 A1 EP4101556 A1 EP 4101556A1
Authority
EP
European Patent Office
Prior art keywords
roller
guide plate
hold
metal strip
table section
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.)
Withdrawn
Application number
EP21178767.6A
Other languages
German (de)
English (en)
Inventor
Matthias Bischoff
Roland Hofer
Pascal Ostheimer
Jan Schwinghammer
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.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to EP21178767.6A priority Critical patent/EP4101556A1/fr
Priority to CN202210653175.7A priority patent/CN115463981A/zh
Publication of EP4101556A1 publication Critical patent/EP4101556A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/34—Arrangements or constructional combinations specifically designed to perform functions covered by more than one of groups B21B39/02, B21B39/14, B21B39/20
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • 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

Definitions

  • roller table sections are generally known. They are used to feed metal strips that have a relatively large thickness - typically 1.2 mm and more, sometimes even slightly over 25 mm - to a coiler that is downstream of the roller table section.
  • the hold-down roller is used to press the metal strip against the corresponding transport roller. After passing the strip head, the hold-down roller is applied to the metal strip with limited force. This makes it easier to bend and deflect the metal strip.
  • a roller table section designed in this way can only be used for transporting a metal strip with a relatively large thickness. If the metal strip has a relatively small thickness of less than 1.2 mm, this configuration of the roller table section is unsuitable.
  • a roller table section is designed in such a way that it does not have a hold-down roller, but the front guide plate extends to directly in front of the driving gap of the deflection unit. In this case, the front guide plate prevents the tape head from lifting off the transport rollers and ensures that the tape head is fed safely to the deflection unit.
  • Such a roller table section can also be used if the metal strip has a slightly greater thickness of up to approximately 12 ⁇ 13 mm.
  • the metal strip has a thickness of more than approx. 12 ⁇ 13 mm, the configuration in which there is no hold-down roller but the front guide plate extends to directly in front of the driving gap of the deflection unit is unsuitable.
  • the object of the present invention is to further develop a roller table section of the type mentioned above in such a way that it can be used not only with a metal strip with a relatively large thickness, but also with a metal strip with a relatively small thickness.
  • roller table section with the features of claim 1.
  • Advantageous configurations of the roller table section are the subject matter of dependent claims 2 to 8.
  • the drive device can be designed as required, for example as an electric or pneumatic drive.
  • the drive device is preferably designed as a hydraulic cylinder unit. This configuration is particularly robust and reliable.
  • the rear guide plate can be retracted and extended as required.
  • the rear guide plate is preferably retracted and extended parallel to the roller axes of the transport rollers. This configuration offers considerable constructional advantages compared to retracting and extending the rear guide plate downwards or upwards and also compared to retracting and extending the rear guide plate in a pivoting movement or another curved displacement movement.
  • the rear guide plate can (seen in the width direction of the rolling stock) be in one piece.
  • the rear guide plate is divided into at least two parts, which are moved towards one another to move into the area between the hold-down roller and the deflection unit and away from each other to move out of this area.
  • the drive device also has its own drive for each of the two parts.
  • This design offers also structural advantages.
  • the travel distance required for the respective part is considerably less than in the case of a one-piece design of the rear guide plate.
  • one of the two parts has at least one protruding centering element on its abutment surface facing the other part, and the other part has a receptacle for the protruding centering element on its abutment surface facing one part.
  • the two parts are moved towards one another when they are retracted until the protruding centering element on one abutting surface is inserted into the receptacle on the other abutting surface.
  • the stability of the guide plate can be increased when it is retracted.
  • the hold-down roller When the rear guide plate is extended, ie when a metal strip with a relatively large thickness is being transported, the hold-down roller can preferably be moved towards the corresponding transport roller with limited force. In this way, the mode of operation of the hold-down roller and also of the roller table section as a whole can be retained unchanged compared to the advantageous mode of operation of the prior art.
  • the hold-down roller when the rear guide plate is retracted, ie when a metal strip with a relatively small thickness is being transported, the hold-down roller can preferably be positioned at a position above the corresponding transport roller. This allows the hold-down roller to be optimally positioned. In particular, the position can be determined such that a lower portion of the hold-down roller bridges a gap between the front and rear guide plates.
  • the roller table section serves to transport a rolled metal strip 1 in a transport direction x ( 2, 3 ).
  • the transport direction x is usually horizontal.
  • the roller table section has a plurality of transport rollers 2 for transporting the metal strip 1 .
  • the transport rollers 2 are arranged one behind the other as viewed in the transport direction x.
  • the transport rollers 2 can be rotated about roller axes 3 .
  • the roller axes 3 run parallel to one another.
  • the direction of the roller axes 3 corresponds to a width direction y of the metal strip 1 ( FIG 4 ).
  • a deflection unit 4 is arranged behind the transport rollers 2 as viewed in the transport direction x.
  • the deflection unit 4 has an upper deflection roller 5 and a lower deflection roller 6 .
  • the metal strip 1 is fed to the deflection unit 4 by means of the transport rollers 2 .
  • the metal strip 1 is deflected obliquely downwards to a coiler 7 by means of the deflection unit 4 .
  • the reel 7 is arranged downstream of the roller table section. The reel 7 is not part of the roller table section.
  • the roller table section has a hold-down roller 8 .
  • the hold-down roller 8 can be placed against one of the transport rollers 2 from above.
  • this transport roller 2 is, seen in the transport direction x, that transport roller 2 which is arranged immediately upstream of the deflection unit 4, as seen in the transport direction x. There is therefore no other transport roller 2 between this transport roller 2 - referred to below as the last transport roller 2 - and the deflection unit 4 .
  • the roller table section has a front guide plate 9 .
  • the front guide plate 9 is arranged in front of the hold-down roller 8 as seen in the transport direction x. It limits lifting of the metal strip 1 from the transport rollers 2 upwards.
  • the roller table section has a rear guide plate 10 ( 3 , FIG 4 ) and a driving device 11 ( FIG 4 ) on.
  • the drive device 11 is assigned to the rear guide plate 10 .
  • the rear guide plate 10 can be moved into an area between the hold-down roller 8 and the deflection unit 4 by means of the drive device 11 and can also be moved out of this area.
  • the rear guide plate 10 In the extended state, the rear guide plate 10 is not active. It therefore does not affect the transport of the metal strip 1 in the extended state.
  • the metal strip 1 In the retracted state, on the other hand, the metal strip 1 is guided into a driving gap 12 ( 2, 3 ) between the upper and the lower deflection roller 5, 6 of the deflection unit 4 is supplied.
  • FIG 1 In a non-working state are - see FIG 1 - Moved the front guide plate 9, the hold-down roller 8 and the upper deflection roller 5 upwards.
  • the rear guide plate 10 is - see the left half of fig FIG 4 - Extended from the area between the hold-down roller 8 and the deflection unit 4.
  • the rear guide plate 10 In order to transport a thick metal strip 1, ie a metal strip 1 with a thickness d above an upper limit thickness do, the rear guide plate 10 remains—see again the left half of FIG FIG 4 - Extended from the area between the hold-down roller 8 and the deflection unit 4.
  • the front guide plate 9 has moved up to the transport rollers 2.
  • a distance between the front guide plate 9 and the transport rollers 2 is set in such a way that it is greater than the thickness d of the metal strip 1 .
  • the upper deflection roller 5 is set so far against the lower deflection roller 6 that the metal strip 1 can pass through the deflection unit 4 and can thereby be deflected towards the coiler 7 .
  • a control device 14 of the roller table section is supplied with a signal that the metal strip 1 is a thick metal strip.
  • the control device 14 controls a drive 15 for the hold-down roller 8 in such a way that the hold-down roller 8 remains lifted off the corresponding transport roller 2 , for example the last transport roller 2 . It is possible that the hold-down roller 8 (see FIG 1 ) is lifted off as far as possible. However, this is not absolutely necessary. It is sufficient if the hold-down roller 8 is kept at a sufficiently large distance from the corresponding transport roller 2 becomes. The distance can be 50 mm, 80 mm or 100 mm, for example. Other values are also possible.
  • the tape head 13 passes the hold-down roller 8 .
  • the control device 14 controls the drive 15 so that the hold-down roller 8 is moved downwards toward the corresponding transport roller 2 .
  • the procedure is force-limited.
  • a force F that the drive 15 exerts on the hold-down roller 8 can be detected and fed to the control device 14 .
  • the hold-down roller 8 is moved onto the corresponding transport roller 2 with limited force when the rear guide plate 10 is extended.
  • the process takes place until the hold-down roller 8 reaches the metal strip 1 and the force which the hold-down roller 8 exerts on the metal strip 1 reaches the force limit defined by the force limitation. This state is in FIG 2 shown. This state is also maintained when the metal strip 1 is transported further.
  • the rear guide plate 10 For transporting a thin metal strip 1, ie a metal strip 1 with a thickness d below a lower limit thickness du, the rear guide plate 10 - see the right half of FIG 4 - Retracted in the area between the hold-down roller 8 and the deflection unit 4. The edge of the rear guide plate 10 facing the deflection unit 4 points into the driving gap 12.
  • the front guide plate 9 has moved up to the transport rollers 2. A distance between the front guide plate 9 and the transport rollers 2 is set in such a way that it is greater than the thickness d of the metal strip 1 .
  • the upper deflection roller 5 is set so far against the lower deflection roller 6 that the metal strip 1 can pass through the deflection unit 4 and can thereby be deflected towards the coiler 7 .
  • the control device 14 is supplied with a signal that the metal strip 1 is a thin metal strip is.
  • the control device 14 controls the drive 15 in such a way that the hold-down roller 8 is positioned at a position above the corresponding transport roller 2 .
  • a position setpoint p* can be supplied to the control device 14 and an actual position value p can also be detected and supplied to the control device 14 .
  • the hold-down roller 8 can be moved to its target position p* in a position-controlled manner.
  • the position to which the hold-down roller 8 is moved can be adjusted as shown in 3 be determined in particular in such a way that a lower region of the hold-down roller 8 bridges a gap between the front and the rear guide plate 9, 10. This state is in 3 shown.
  • the tape head 13 passes the hold-down roller 8. From this point in time, the hold-down roller 8 can either continue to be held at its current position p or be moved upwards.
  • the upper limit thickness do and the lower limit thickness du can be determined as needed.
  • the upper limit thickness do is usually 1.2 mm or more.
  • the lower limit thickness du is usually 12 mm or less. If the lower limit thickness du equals the upper limit thickness do, each metal strip 1 is clearly either a thick metal strip or a thin metal strip. If the lower limit thickness du is greater than the upper limit thickness do, a metal strip 1 having a thickness d between the upper limit thickness do and the lower limit thickness du can be regarded as either a thick metal strip or a thin metal strip as appropriate. There can therefore be a range of thicknesses in which one or the other approach can be taken as desired.
  • the drive device 11 is designed as a hydraulic cylinder unit. This configuration is not mandatory. However, it is preferred. Furthermore, it can be seen that the retraction and the rear guide plate 10 can be extended parallel to the roller axes 3 of the transport rollers 2 . Although this embodiment is not mandatory, it is preferred.
  • FIG 4 shows yet another advantageous embodiment of the present invention.
  • the rear guide plate 10 is not designed in one piece (which is also possible in principle) but divided into at least two parts 10', 10".
  • the drive device 11 also has its own drive 11', 11" for each of the two parts 10', 10". . Due to the division of the rear guide plate 10 into the at least two parts 10', 10", the two parts 10', 10" are moved towards one another to move into the area between the hold-down roller 8 and the deflection unit 4. Conversely, they are moved out to move out move away from each other in this area.
  • the part 10 'according to 7 and 8 on its abutment surface 16' facing the part 10" has a protruding centering element 17.
  • the protruding centering element 17 can be designed, for example, as a centering bolt.
  • the part 10" has according to 7 and 9 on its abutment surface 16" facing the part 10' has a receptacle 18 for the protruding centering element 17. If the two parts 10', 10" are retracted into the area between the hold-down roller 8 and the deflection unit 4, the protruding Centering element 17 inserted into the receptacle 18. This results in a more stable connection between the two parts 10', 10".
  • the parts 10', 10'' have more than one protruding centering element 17 and correspondingly more than one receptacle 18.
  • the protruding centering element 17 and the receptacle 18 are non-circular. In both configurations mutual twisting of the two parts 10', 10" against one another is prevented.
  • the two configurations can also be combined with one another.
  • the present invention has many advantages.
  • metal strips 1 can be transported over a large thickness range by means of the roller table section according to the invention.
  • the structure is low-maintenance, robust and reliable.
  • it is also possible in a simple manner to convert existing roller table sections.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
EP21178767.6A 2021-06-10 2021-06-10 Section de rouleau pour une large gamme d'épaisseur de bandes métalliques Withdrawn EP4101556A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21178767.6A EP4101556A1 (fr) 2021-06-10 2021-06-10 Section de rouleau pour une large gamme d'épaisseur de bandes métalliques
CN202210653175.7A CN115463981A (zh) 2021-06-10 2022-06-10 用于金属带的大厚度范围的辊道区段

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21178767.6A EP4101556A1 (fr) 2021-06-10 2021-06-10 Section de rouleau pour une large gamme d'épaisseur de bandes métalliques

Publications (1)

Publication Number Publication Date
EP4101556A1 true EP4101556A1 (fr) 2022-12-14

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Application Number Title Priority Date Filing Date
EP21178767.6A Withdrawn EP4101556A1 (fr) 2021-06-10 2021-06-10 Section de rouleau pour une large gamme d'épaisseur de bandes métalliques

Country Status (2)

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EP (1) EP4101556A1 (fr)
CN (1) CN115463981A (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1005086A (en) * 1962-04-16 1965-09-22 United Eng Foundry Co Improvements in or relating to handling strip material
JPS6083722A (ja) * 1983-10-17 1985-05-13 Sumitomo Heavy Ind Ltd 熱間圧延材の巻取方法
US7454938B2 (en) * 2004-10-12 2008-11-25 Siemens Vai Metals Technologies Sas Method and device for rolling up a strip
JP2013240829A (ja) * 2012-04-27 2013-12-05 Nippon Steel & Sumitomo Metal Corp 熱間圧延ラインの通板ガイド装置
WO2016091855A1 (fr) * 2014-12-10 2016-06-16 Sms Group Gmbh Dispositif servant à enrouler une bande métallique
EP3120945A1 (fr) * 2014-03-20 2017-01-25 Primetals Technologies Japan, Ltd. Dispositif bobineuse doté d'un rouleau de chute

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1005086A (en) * 1962-04-16 1965-09-22 United Eng Foundry Co Improvements in or relating to handling strip material
JPS6083722A (ja) * 1983-10-17 1985-05-13 Sumitomo Heavy Ind Ltd 熱間圧延材の巻取方法
US7454938B2 (en) * 2004-10-12 2008-11-25 Siemens Vai Metals Technologies Sas Method and device for rolling up a strip
JP2013240829A (ja) * 2012-04-27 2013-12-05 Nippon Steel & Sumitomo Metal Corp 熱間圧延ラインの通板ガイド装置
EP3120945A1 (fr) * 2014-03-20 2017-01-25 Primetals Technologies Japan, Ltd. Dispositif bobineuse doté d'un rouleau de chute
WO2016091855A1 (fr) * 2014-12-10 2016-06-16 Sms Group Gmbh Dispositif servant à enrouler une bande métallique

Also Published As

Publication number Publication date
CN115463981A (zh) 2022-12-13

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