EP 0388865 B1 19930303 - ROLLING TRAIN FOR ROLL FORMING STRIPS (STRAIGHT BEAD TUBE WELDING)
Title (en)
ROLLING TRAIN FOR ROLL FORMING STRIPS (STRAIGHT BEAD TUBE WELDING)
Publication
Application
Priority
- DE 3909208 A 19890321
- DE 3912684 A 19890418
Abstract (en)
[origin: EP0388865A1] A plurality of roll stands are provided, each comprising a rear housing (o2) (drive side) and a front housing (o3) (operator side). The roll necks (o1) are mounted on the front housing, while there are corresponding bearing bushes in the rear housing. When the rolls are changed, the roll necks, which are hydraulically stressed, are released, allowing the rear housings to be moved sideways in their entirety by means of a screw device (18). All the front housings (o3) are grouped on one changing plate (o4). The changing plate is placed on clamping bolts (13) and hydraulically clamped. After the release of the clamping, the front housings can be removed in their entirety and replaced by a set of housings containing new rolls. The rear housings move backwards together again until the roll necks (o1) are taken up by the bearing bushes. It is thus possible to perform a change in the dimensions of the rolls in a short time. <IMAGE>
IPC 1-7
IPC 8 full level
B21B 31/08 (2006.01); B21B 31/10 (2006.01); B21B 27/03 (2006.01); B21B 31/02 (2006.01)
CPC (source: EP)
B21B 31/08 (2013.01); B21B 31/10 (2013.01); B21B 27/03 (2013.01); B21B 2031/023 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0388865 A1 19900926; EP 0388865 B1 19930303; DE 3912684 A1 19901004; DE 59000947 D1 19930408
DOCDB simple family (application)
EP 90105180 A 19900320; DE 3912684 A 19890418; DE 59000947 T 19900320