EP0155510A1 - Kanterrollen zum Manipulieren von Walzgut - Google Patents

Kanterrollen zum Manipulieren von Walzgut Download PDF

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Publication number
EP0155510A1
EP0155510A1 EP85101714A EP85101714A EP0155510A1 EP 0155510 A1 EP0155510 A1 EP 0155510A1 EP 85101714 A EP85101714 A EP 85101714A EP 85101714 A EP85101714 A EP 85101714A EP 0155510 A1 EP0155510 A1 EP 0155510A1
Authority
EP
European Patent Office
Prior art keywords
roll
rollers
edge
block
caliber
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Withdrawn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
EP85101714A
Other languages
German (de)
English (en)
French (fr)
Inventor
Franz Ing.-(Grad.) Baumann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0155510A1 publication Critical patent/EP0155510A1/de
Withdrawn legal-status Critical Current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
    • B21B39/20—Revolving, turning-over, or like manipulation of work, e.g. revolving in trio stands
    • B21B39/30—Revolving, turning-over, or like manipulation of work, e.g. revolving in trio stands by lodging it in a rotating ring manipulator or ring segment manipulator

Definitions

  • the invention relates to the edge rolls of a roller plier canter for manipulating blocks or rolling stock, preferably on the roughing stand of a rolling mill, the radial caliber turning on the roll casing of such edge rolls in the contact areas being precisely adapted to the different block cross sections of a spike edge / square calibration.
  • the roll jacket radius III can shift up to about 10 mm across the longitudinal axis on the block surface and cause oblique or crooked pressure marks as well as thrusting on the block edges. This surface damage leads to overlap errors of different designs on the finished profile.
  • Pinching is also caused when the smaller block edges run over the larger inner roll shell radius II as a result of the high contact pressure on the block edges.
  • the feed of the block in its longitudinal axis to the roll stand by the roller table rollers can have a very unfavorable effect.
  • the block When piercing into the rolling caliber, the block is often not immediately packed and an attempt is then made to push the block into the rolling caliber with momentum by quickly turning the roller table rollers. This process has to be repeated in part and the strong rubbing of the roller table rollers creates material overlaps at the block edges.
  • Profiled gripping rollers for edging block cross sections are known from DT-AS 1 243 622 and DT-AS 1 284 923. As a result of the non-parallel and sometimes angular caliber formation of the gripping rollers, crushing on the surface of the billets or rolling stock is inevitable.
  • the invention is based on the object of designing the roll jacket of the edge rolls and of setting them up in such a controllable manner that, when gripping and holding the different block and rolled material cross sections of a sequence of steps, coarse bruises or displacements on the surface, which occur as surface defects on the finished rolled profile, be avoided.
  • the object is achieved in that, in the case of the radial caliber turning on the roll casing, the different opening angles of the contact surfaces parallel to each rolling pass with the different block or rolling cross sections, e.g. a spike edge / square calibration is adapted per sequence in a block or caliber roll, as shown in FIG 12 and 13 to 16.
  • the two edge rolls must be able to be moved together as closely as possible. So that the smaller radii of the block edges cannot run against the roll jacket and this causes crushing on the edges, the inner radius I of the roll jacket caliber must be enlarged and interpreted somewhat so that the block edge is either free or without contact pressure in radius I can run.
  • the two outer radii on the roll casing must be designed as large as possible.
  • a temperable and heat-resistant steel with high wear resistance is required for the high loads on the roll shell due to the rolling operation.
  • a holding construction should be used to fasten the canter rollers in the canter's swivel arm, which enables quick release and easy changing of the rollers.
  • an independent drive of the edge rollers is necessary.
  • An additional requirement is a synchronous switching of the own drive of the edge rollers with the drive of the roller table rollers.
  • the advantages achieved by the invention are, in particular, that surface damage to the blocks or rolling stock is avoided when manipulating with roller tongs, which sometimes occur to a considerable extent as overlap-like defects in the finished profiles and lead to rework or rejects.
  • FIG. 1 shows a schematic representation of the operating systems of a multi-stand profile mill, the roller tongs on both sides of the roughing stand.
  • the blocks 2 weighing up to 1.5 tons are heated to over 1,200 ° C.
  • the block 2 is pulled with an underfloor chain hoist over the transverse transport 4 and then runs over driven roller table rollers 5 to remove the scale by a spraying system 6.
  • the primary scale is sprayed off the block with a high water pressure of over 150 bar .
  • the block 2 is manipulated with reversing driven block rollers 8 during the rolling process, each with a pair of edge rollers 9 on each side of the block stand 7.
  • FIG. 2 illustrates the manipulation and the mode of operation of the roller pliers canter 9.
  • the block 2 is held in a vertical position with about two tons of hydraulic contact pressure per edge roller 9 and moved in front of the rolling caliber 10. Since the edge roller 9 has no self-propulsion, the block is driven by the roller table rollers 5 in its longitudinal axis to the block roller 8 and pushed into the rolling caliber 10. After the two block rollers 8 have packed the block 2 and this runs through the roll caliber 1o, the two edge rolls 9 are opened, moved apart and moved down, turned back to the horizontal gripping position by 9o and moved in front of the next roll caliber 11 to receive the next rolling pass.
  • the block roller 8 On the opposite side -.hinter the block roller 8 - the end of the block 2 is gripped before the exit from the roll pass 1o with the second set horizontally Kanter roller pair 9, superscript vertically about 9 0 0 and taken to the next rolling pass 11 for tapping.
  • the block 2 is driven back in the opposite direction to the roller 8 by the roller table rollers 5 and pierced into the roller caliber 11.
  • the block 2 runs after the last pass through the roller table 5 to the next stand for the further pass acceptance.
  • the edge of the edge and the axis of the spike edge 2 are parallel after the 3rd stitch.
  • the radius III of the lower roll casing caliber 12 With the radius III of the lower roll casing caliber 12, the bottom of the block is approached when gripping the spike edge 2.
  • the radius III moves towards the center of the block and creates groove-like pressure marks on the surface of the block at an angle to the longitudinal axis.
  • overshoots are also caused on the lower block edge.
  • FIG. 8 shows the contact areas 14 of the upper roll jacket caliber 12 lying flat on the surface of the spike edge 2 after the 1st stitch. It can be seen that no bruises can occur on the block surface or groove-like pressure marks, while the unfavorable caliber shapes become clear for comparison on the lower caliber 12.
  • FIG. 9 shows the parallel areas 15 of the newly developed shape to the square block 2 after the 2nd stitch, which are inside the roll casing caliber 12. The previous shape of the lower caliber 12 has a clear angular difference of around 12 °.
  • FIG. 1o shows an approximately parallel and narrowest roll adjustment after the third stitch, a considerable dimensional difference of around 20 mm and an angular difference of approximately 13 °.
  • FIG. 12 shows the calibration of the roll cover 12 with the three parallel contact areas 14, 15 and 16 in accordance with the cross-sectional and caliber shapes of block 2 of a spike edge / square calibration from the block or 1st to 4th (5th) stitch shown.
  • the parallel regions 14 after the first roll pass with an opening angle of approximately 113 ° are located on the outside of the caliber of the roll shell.
  • the parallel surface area 15 lies around 92 ° on the inside.
  • the parallel region 16 after the third stitch with around 1 07 0 is located in the middle of the roll casing caliber 12.
  • the inner radius 17 is formed in connection with the inner contact surface 15 so that the block edge is free and does not run on the enlarged radius 17 of the roll casing caliber 12 or the inner radius 17 is matched to the radius of the block edge and the contact pressure of the edge rollers is that crushing cannot occur at the block edges.
  • FIG. 13 shows a section of the two roller coats 12 in the vertical piercing position when holding and guiding the block 2 with a spike-edged block cross-section.
  • the square 2 is held between the two guide surfaces 15 after the second stitch and before the piercing to the third stitch, the parallel regions being inside the caliber of the roll jacket 12.
  • the skewed edge 2 is guided after the 3rd stitch and before the 4th stitch in the parallel areas 16 in the middle of the roll jacket caliber 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
EP85101714A 1984-02-17 1985-02-18 Kanterrollen zum Manipulieren von Walzgut Withdrawn EP0155510A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3405742 1984-02-17
DE19843405742 DE3405742A1 (de) 1984-02-17 1984-02-17 Kanterrollen zum manipulieren von walzgut

Publications (1)

Publication Number Publication Date
EP0155510A1 true EP0155510A1 (de) 1985-09-25

Family

ID=6228032

Family Applications (2)

Application Number Title Priority Date Filing Date
EP85101714A Withdrawn EP0155510A1 (de) 1984-02-17 1985-02-18 Kanterrollen zum Manipulieren von Walzgut
EP19850900979 Withdrawn EP0172856A1 (de) 1984-02-17 1985-02-18 Kanterrollen zum manipulieren von walzgut

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19850900979 Withdrawn EP0172856A1 (de) 1984-02-17 1985-02-18 Kanterrollen zum manipulieren von walzgut

Country Status (5)

Country Link
EP (2) EP0155510A1 (enrdf_load_stackoverflow)
AT (1) AT384964B (enrdf_load_stackoverflow)
AU (1) AU4064185A (enrdf_load_stackoverflow)
DE (1) DE3405742A1 (enrdf_load_stackoverflow)
WO (1) WO1985003654A1 (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB547999A (en) * 1941-10-09 1942-09-21 Stewarts & Lloyds Ltd Means for use in the rolling of metal bars
DE1201799B (de) * 1961-07-21 1965-09-30 Sack Gmbh Maschf Kant- und Wendevorrichtung
FR2318692A1 (fr) * 1975-07-24 1977-02-18 Forges & Acieries Bonpertuis Tete et machine de manipulation pour barre ou analogue

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE421998C (de) * 1924-05-28 1925-11-21 Abtlg Ruhrort Kantvorrichtung
DE634386C (de) * 1934-08-02 1936-08-26 Fried Krupp Grusonwerk Akt Ges Kantvorrichtung fuer Walzwerke
DE940103C (de) * 1942-04-14 1956-03-08 Banning A G J Kantvorrichtung fuer Walzgut
DE1284923B (de) * 1960-07-13 1968-12-12 Schloemann Ag Greifrollenpaar zum Erfassen und Hochstellen von verschiedenartigen Profilquerschnitten
DE1243622B (de) * 1960-07-13 1967-07-06 Schloemann Ag Vorrichtung zum Hochstellen von Walzgutprofilen in die zum Anstechen im folgenden Geruest gerechte Lage
DE1901010U (de) * 1960-12-23 1964-09-24 J Banning Maschf Kantvorrichtung fuer grundsaetzlich beliebigen querschnitt aufweisendes walzgut.
US3291322A (en) * 1964-03-09 1966-12-13 Elektrostalsky Zd Tjazhelogo M Manipulator for rolled stock
DE1801761A1 (de) * 1968-10-08 1970-06-11 Schloemann Ag Drallgeruest
DE2533287A1 (de) * 1975-07-25 1977-02-17 Schloemann Siemag Ag Vorrichtung zum spiesskantstellen von knueppelfoermigem walzgut
DE2742439C2 (de) * 1977-09-21 1983-03-31 SMS Schloemann-Siemag AG, 4000 Düsseldorf Vorrichtung zum Kanten oder Spießkantstellen von Walzgutprofilen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB547999A (en) * 1941-10-09 1942-09-21 Stewarts & Lloyds Ltd Means for use in the rolling of metal bars
DE1201799B (de) * 1961-07-21 1965-09-30 Sack Gmbh Maschf Kant- und Wendevorrichtung
FR2318692A1 (fr) * 1975-07-24 1977-02-18 Forges & Acieries Bonpertuis Tete et machine de manipulation pour barre ou analogue

Also Published As

Publication number Publication date
DE3405742C2 (enrdf_load_stackoverflow) 1987-11-26
AU4064185A (en) 1985-09-10
AT384964B (de) 1988-02-10
ATA221584A (de) 1987-07-15
DE3405742A1 (de) 1985-11-28
WO1985003654A1 (en) 1985-08-29
EP0172856A1 (de) 1986-03-05

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Effective date: 19860525