To provide a cutting device of a V-belt molding sleeve that leaks little coolant even without protecting a rotary bearing mechanism of a cutter, a working surface difficult to be covered, or the like while the coolant for suppressing heat generation of a cutter edge at the cutting time is poured also on an unvulcanized belt sleeve and scatters around.
A coolant scattering protective cover 6 of the cutter has a spray guard 7, when the unvulcanized belt sleeve Sv formed on the outer periphery of a molding drum 3 is rotated, and cut and sliced by the cutter edge 75. The spray guard 7 has at least a back surface cover 31 of the molding drum 3, an appentice-like cover 32 projecting from the back surface to the proximity of the drum top, and a scraper 33 that sags from the front end of the appentice and has flexibility.
HAYAMIZU YOSHIHIRO
UEHARA KAZUO
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