摘要:
An apparatus for encrusting a filling material is provided. The apparatus includes screw-transferring apparata (27) to transfer a filling material and encrusting material, and vane pumps (29) to transfer the respective filling and encrusting materials to a combining nozzle (13). The combining nozzle combines the encrusting material that is supplied by the vane pump for encrusting material with the filling material that is supplied by the vane pump for filling materials. Each screw-transferring apparatus includes horizontal screws (33A, 33B). Each vane pump has a vertical rotating shaft (43). The end of each screw is free and is positioned at the inlet (41) of each vane pump. At the inlet of each vane pump a food-guide plane (41G) is formed. That plane is tangent to a trajectory of the outer edge of the vanes (49) of the vane pump. The trajectory forms a circle that has the biggest diameter among all of the trajectories defined by the outer edges of the vanes when the vanes rotate.