EP 3110577 B1 20180328 - RING ROLLING DEVICE

Title (en)

RING ROLLING DEVICE

Title (de)

RINGWALZVORRICHTUNG

Title (fr)

DISPOSITIF POUR LE LAMINAGE DE BAGUES

Publication

EP 3110577 B1 20180328 (DE)

Application

EP 14706598 A 20140225

Priority

EP 2014053655 W 20140225

Abstract (en)

[origin: WO2015127964A1] The invention relates to a ring rolling device for enlarging a ring blank (9), comprising a drive roller (1) and a rotatable revolving drum (3), in which five mandrels (2) are rotatably mounted. Ring blanks (9) can be mounted around the mandrels (2). By rotating the revolving drum (3), the mandrels (2) move towards and away from the drive roller (1). The revolving drum (3) is arranged in relation to the drive roller (1), in such a way that, by rotating the revolving drum (3) a decreasing roll gap is formed between a mandrel (2) approaching the drive roller (1) and the drive roller (1), in which roll gap a ring blank (9) mounted around the mandrel (2) is rolled, during the rotating of the revolving drum (3). The revolving drum (3) has four rotatably mounted support rollers for rotatably mounting each mandrel (2), said support rollers supporting the mandrel (2) in the direction of the rotational axis (39) of the revolving drum, such that, during the rolling process, the mandrel (2) is located between the support rollers and the press element (1).

IPC 8 full level

B21H 1/06 (2006.01); B21H 1/12 (2006.01)

CPC (source: EP KR US)

B21B 25/00 (2013.01 - US); B21H 1/06 (2013.01 - EP KR US); B21H 1/12 (2013.01 - EP KR US)

Citation (opposition)

Opponent : SMS group GmbH

DE 703436 C 19410308 - KREUSER GMBH ADOLF
JP S62244541 A 19871024 - MITSUBISHI NAGASAKI MACH MFG
DE 1972506 U 19671116 - MANNESMANN MEER AG [DE]
DE 4214861 B4 20041111 - BAD DUEBEN PROFILWALZMASCHINEN [DE]
DE 4135906 A1 19930506
US 3498095 A 19700303 - MARCOVITCH JACOB
DE 1286497 B 19690109 - MARCOVITCH JACOB
DE 1525291 A1 19690918 - TORRINGTON CO
DE 3741006 C2 19950727 - KYOEI SEIKO CO [JP]
DE 627721 C 19360321 - RINGFEDER GMBH
DE 1141970 B 19630103 - WAGNER & CO WERKZEUGMASCHF
DE 1098481 B 19610202 - WAGNER & CO WERKZEUGMASCHF
GB 2047590 A 19801203 - THYSSEN INDUSTRIE
US 4173877 A 19791113 - KREISKORTE HEINZ [DE]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2015127964 A1 20150903; CN 105980083 A 20160928; CN 105980083 B 20171205; EA 031166 B1 20181130; EA 201600611 A1 20161230; EP 3110577 A1 20170104; EP 3110577 B1 20180328; EP 3110577 B2 20210303; ES 2667421 T3 20180510; ES 2667421 T5 20211006; JP 2017506162 A 20170302; JP 6373412 B2 20180815; KR 101905287 B1 20181005; KR 20160125408 A 20161031; UA 114688 C2 20170710; US 10413963 B2 20190917; US 2017008066 A1 20170112

DOCDB simple family (application)

EP 2014053655 W 20140225; CN 201480074399 A 20140225; EA 201600611 A 20140225; EP 14706598 A 20140225; ES 14706598 T 20140225; JP 2016570162 A 20140225; KR 20167024126 A 20140225; UA A201606657 A 20140225; US 201415119250 A 20140225