TURN SHAPER FOR FORMING HELIX OF HOT ROLLED BLANK MOVING IN LENGTHWISE DIRECTION (VARIANTS)

摘要

FIELD: turn shapers for rod rolling mills. ^ SUBSTANCE: turn shaper includes tubular hollow shaft having central rotation axis and inner surface arranged around through opening passing along said axis through hollow shaft from its first end until opposite second end. Said inner surface has cylindrical portion passing from first end of shaft towards zone flared in radial direction outside and passing to second end of shaft. Twisting tube is arranged in through opening and it has inlet end coaxial relative said axis and arranged near first end of through opening, bent intermediate portion adjoined to flared zone of inner surface of shaft. Twisting tube extends in axial direction from second end of through opening; outlet end of twisting tube is shifted in radial direction from said axis. First supporting member is mounted in first end of through opening for providing radial support for inlet end of twisting tube. Second supporting member holds bent intermediate portion of twisting tube; it is introduced in axial direction to second end of through opening and it has configuration and size necessary for holding bent intermediate portion of twisting tube due to pressing it to flared zone of inner surface of hollow shaft. ^ EFFECT: enhanced operational reliability of turn shaper. ^ 5 cl, 2 dwg