Multiple fluid mixing apparatus.

摘要

A mixing apparatus for mixing two or more liquids, e.g. as required in reactive injection molding, has a rotary member (3) mounted for rotational and axial movement within a cylindrical bore (1b) of a mixing head (1), with a convex conical surface of the rotary member disposed opposite a concave conical surface (1a) formed at a lower end of the bore. Mixing is performed by axially displacing the rotary member to form a mixing gap between the conical surfaces, injecting two or more liquids into the gap from the periphery thereof, and rotating the rotary member at high speed to mix the liquids, the mixture being ejected from a central aperture formed in the concave conical surface. On completion of the mixing operation, residual mixture is ejected by moving the conical surfaces into close contact.