| 摘要 |
An extruder (1) produces an extruded food piece in a shape that simulates the shape of a natural food piece. The extruder (1) has a pressure vessel (2), a pressure exerting device (3) for the pressure vessel (2), a manifold (4) in fluid communication with the pressure vessel (2), and at least one die and cutter assembly (6) in fluid communication with the manifold (4). The die and cutter assembly (6) has an extrusion member (9) with an extrusion wall (10), a closed extrusion end (11), an opened feed end (12) attachable to the manifold (4), at least one extrusion die (13) formed in the extrusion wall (10) near the extrusion end (11), and a tubular cutter member (14). The tubular cutter member (14) has a drivable end (19), a cutter wall (16) and an opened cutter end (17) with at least one cutting surface (18) for cutting mash into the shape as the mash exits the die (13). The cutter member (14) is reciprocally slidable on the extrusion wall (10) by drive device (20). The cutting motion of the cutter across the die does not change the pressure of mash in the tubular extrusion wall (10). The cutting surface is shaped to approximate the shape of at least the first quarter of the die (13) encountered by the cutting surface when cutting a food surface.
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