Mixing-metering device for two morphologically different flowable products, applicable to a packaging machine

摘要

The mixing-metering device comprises a first metering device (1) including a metering conduit (5) with a worm screw (4) to introduce metered amounts of a first product (A) into an outlet conduit (3) in communication with a filling conduit (22), and a second metering device (2) to introduce consecutive metered amounts of a second product (B) into said outlet conduit (3). The second metering device (2) comprises a vibrating channel (6) arranged to pour said second product (B) into a receiving conduit (7), a retainer (8) intermittently operated to temporarily retain the flow of the second product (B) in said receiving conduit (7) to form and let successive metered amounts fall into a drop conduit (9), and a transfer element (10) to transfer the metered amounts of the second product (B) from the drop conduit (9) to the outlet conduit (3).