Mixing device

A mixing device suitable to mix substances or liquid or semi-liquid compounds to increase the volume thereof, comprising:

• a hub which develops along a central axis and three mixing spokes connected to the hub, wherein each of said spokes comprises an external lateral fin and two upper and lower connection segments, which connect respective upper and lower ends of said lateral fin to said hub, and wherein said lateral fins and said upper and lower connection segments have respective longitudinal axes of development inclined with respect to each other and/or with respect to said central axis, wherein said spokes develop, with respect to the central axis, in a truncated cone-shaped volume and said fins have respective external edges lying on a common truncated cone-shaped surface, with a shape flared between said lower connection segment and said upper connection segment and the lateral fin of at least one spoke lies on a vertical lying plane inclined with respect to said central axis by an angle of vertical inclination comprised between 2° and 10°.