CONTINUOUS DRAWING MILL Russian patent published in 2000 - IPC

FIELD: production of drawn articles, namely construction of continuous drawing mills with cam drive. SUBSTANCE: continuous drawing mill includes housing with drawing die plate and driving shaft with two cylindrical cams mounted on it. Cylindrical cams are turned one relative to another by 180 degrees and they have working stroke dents with thickness "a" and with ultimate pressure angles α in development of cam profile and idle-stroke dents with ultimate pressure angles β in development of cam profile. Two drawing carriages are kinematically joined with cams through working-stroke rollers having radius R and idle-stroke rollers having radius r. Rotation axes of rollers are normal relative to rotation axes of cams. Rotation axis of idle-stroke rollers is shifted relative to rotation axis of cam by value X= (R+r+a) x 1/cosα x tg(00.5-0.2)β. EFFECT: enhanced efficiency of drawing mill without increasing its dimensions. 4 dwg