Global Patent Index - EP 1184095 A3

EP 1184095 A3 20030716 - Method and apparatus for interchanging ring rolls of a bar and wire rod mill

Title (en)

Method and apparatus for interchanging ring rolls of a bar and wire rod mill

Title (de)

Verfahren und Vorrichtung zum Auswechseln von Walzringen eines Stabstahl- und Drahtwalzwerkes

Title (fr)

Procédé et dispositif pour le remplacement des bagues de laminage d'un laminoir à barres et à fils

Publication

EP 1184095 A3 20030716 (EN)

Application

EP 01304161 A 20010509

Priority

  • JP 2000258800 A 20000829
  • JP 2000330941 A 20001030

Abstract (en)

[origin: EP1184095A2] The present invention relates to a method and apparatus for changing ring rolls of a bar and wire rod mill which makes roll changing work easy and in particular to a method for changing only the ring rolls without disassembling the housing in accordance with an optimum process. The method for changing ring rolls in a bar and wire rod mill having a plurality of roll assemblies incorporated into a housing (8) and arranged in equiangular positions around a pass (16) comprises the steps of disengaging the interference fit between the spent ring rolls (2)(102) and the roll shaft (1)(101), withdrawing the spent ring rolls by moving the roll shaft in an axial direction, changing the spent ring rolls with new ring rolls in the housing (8), inserting the roll shaft into the new ring rolls, and engaging the new ring rolls in interference fit with the roll shaft (1)(101). Additionally, a main body of a bar and wire rod mill comprising a roll shaft suspending apparatus and a mechanism suitable for the method according to the present invention are provided. <IMAGE>

IPC 1-7

B21B 31/08

IPC 8 full level

B21B 31/08 (2006.01); B21B 13/10 (2006.01)

CPC (source: EP KR US)

B21B 31/08 (2013.01 - EP KR US); B21B 13/103 (2013.01 - EP US)

Citation (search report)

  • [A] DE 977216 C 19650624 - DEMAG AG
  • [A] JP S5847301 U 19830330
  • [A] EP 0479749 A1 19920408 - NIPPON STEEL CORP [JP], et al
  • [A] US 5657540 A 19970819 - REGENBERG WOLFGANG [DE]
  • [A] EP 0904862 A2 19990331 - SUMITOMO HEAVY INDUSTRIES [JP], et al & JP H11104706 A 19990420 - SUMITOMO HEAVY INDUSTRIES, et al
  • [XA] BRAUER H: "WEITERENTWICKLUNGEN DER DREIWALZEN-UMFORMBLÖCKE", STAHL UND EISEN, VERLAG STAHLEISEN GMBH. DÜSSELDORF, DE, vol. 112, no. 7, 15 July 1992 (1992-07-15), pages 53 - 60,130, XP000293327, ISSN: 0340-4803
  • [XA] BLOS E O ET AL: "NEW DEVELOPMENTS IN ROD MILLS", IRON AND STEEL ENGINEER., vol. 63, no. 12, December 1986 (1986-12-01), ASSOCIATION OF IRON AND STEEL ENGINEERS. PITTSBURGH., US, pages 35 - 46, XP002241240, ISSN: 0021-1559

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

EP 1184095 A2 20020306; EP 1184095 A3 20030716; AU 3222401 A 20020313; KR 20020060719 A 20020718; TW 480194 B 20020321; US 2002134127 A1 20020926; WO 0218070 A1 20020307

DOCDB simple family (application)

EP 01304161 A 20010509; AU 3222401 A 20010131; JP 0100665 W 20010131; KR 20027005331 A 20020426; TW 90102252 A 20010202; US 11075602 A 20020417