CASING CUTTING APPARATUS Russian patent published in 2007 - IPC B29B17/00 B02C18/06 

FIELD: technique used for simultaneous cutting of auto-tire casings along a number of cutting lines, and parts of casings such as carcass-breaker-tread casing bracelet manufactured from a number of layers of rubber reinforced with textile and metal cord.

SUBSTANCE: apparatus for simultaneous cutting along a number of cutting lines of reinforced composite material, such as casing with metal cord, has metal cylinder formed as roller with slots, and metal blades arranged in accordance with arrangement of slots. Blades have surfaces approximating in their shape to that of pseudosphere. Cylinder has bores between slots, with shape of bore surfaces approximating that of hyperboloid of revolution of one sheet. Apparatus of such construction enables fixing of material under cutting process due to clamping of said material between surfaces defining cutting edges and entrance parts of slots. Bore surface allows pressure of material under cutting process applied to blade surfaces to be reduced and probability of clamping blades with said material to be minimized.

EFFECT: increased efficiency and enhanced reliability in operation.

1 dwg