MOVABLE HEAD FOR STRETCHING MACHINE Russian patent published in 2016 - IPC B21D25/04 B21D1/05 

FIELD: technological processes.

SUBSTANCE: invention relates to metal forming, particularly, to straightening a metal sheet. Straightening machine comprises a first front portion including a plurality of sheet segments parallel to one another and shaped so as to define a clamping mouth and a stretching plane perpendicular to sheet segments, wherein mouth comprises clamping means to lock a sheet metal, a second rear portion firmly connected to first front portion so as to stiffen first front portion, and providing rigidity of coupling studs arranged parallel to stretching plane to connect first and second portions with each other.

EFFECT: providing stiffness of structure.

8 cl, 10 dwg