US Patent 7347615 Mixer with smoothed mixing action

A mixer (1) is described, in particular a feed mixer, has a mixing chamber (3), which is provided with a discharge opening (6) for the mix. A mixing screw (7), driven about a vertical rotating axis (7a), is accommodated in the mixing chamber (3). Furthermore, a rotary driven device (10) is provided for the smoothing of the discharge of the mix at the lower section of the mixing screw (7), and that moves across the discharge opening (6). To further smooth the discharge of the mix, a device (10) has a guide plate (11) with a surface (11a) on which the mix deposits to increase the action of the centrifugal force on the mix.