METHOD OF ROLLING CHAMFERS ON ROD PRODUCTS Russian patent published in 2021 - IPC B21H1/18 B21H1/22 B21H7/18 

FIELD: rod products manufacturing.

SUBSTANCE: workpiece is fed into a tray equipped with a pushing mechanism, the workpiece is placed on the rolls, chamfers are formed on the workpiece by pushing it between the rolls and removing the rod product. The rolls with a diameter four times larger than the diameter of the workpiece, containing circular streams of semicircular cross-section with a radius equal to the radius of the workpiece, are used. The workpiece is placed in the streams of the rolls with the condition of the remoteness of its lower end edges from the points of intersection of the bottom surfaces of the streams with the diametrical axis of the rolls at a distance equal to the diameter of the workpiece. Chamfers are formed by rounding the end edges of the workpiece by rolling them over the surface of the ring streams of the rolls in the process of pushing the workpiece between the rolls. The rolls are supported on elastic elements mounted on the diametric axis of the rolls from the sides opposite to the chamfer rolling zones, with a compression force equal to the chamfer rolling force.

EFFECT: as a result, quality of the rounded end edges of the workpiece increases with high process productivity.

1 cl, 8 dwg, 1 ex