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公开(公告)号：US5686128A
公开(公告)日：1997-11-11
申请号：US522449
申请日：1995-08-31
CPC分类号： B29C47/128 , A21C11/163 , A23P30/25 , B29C47/0023
摘要： The triple coextrusion of snack food products having highly uniform and integral individual layers is achieved by the use of a compact, precisely toleranced coextrusion die which may be mounted at the outlet end of a cooker extruder. The coextrusion die includes a die block with smooth, unobstructed flow passages for each material. The outer passages for the casing material are substantially coaxial with the central axis of the die block and extend from end to end. A central bore and an annular passage having their central axes aligned with the central axis of the die block at its outlet end extend upstream to filler feed ports. The feed port entrances are at the outer surface of the die block between its ends. The side ports and filler feed lines connected to them do not interfere with a substantially straight flow path of casing material directly from a cooker extruder. A protruding tip formed at the outlet end of the die block by the bore and annular passage extends into a converging block or cone. The separate streams of casing material from the outer passages of the die block converge or reform in the cone into a seamless, unitary annular outer casing layer enrobing the outer filler, which enrobes the inner filler. The small diameter extrudate rope may be continuously shaped into small diameter snack products in a post-extrusion process such as crimping or molding with no substantial excess or waste.
摘要翻译： 通过使用可安装在炊具挤出机的出口端的紧凑的，精确公差的共挤出模具来实现具有高度均匀且整体的单独层的快餐食品的三重共挤出。 共挤出模具包括用于每种材料的平滑，无阻碍流动通道的模具块。 用于壳体材料的外部通道与模具块的中心轴线基本上同轴并且从一端到另一端延伸。 中心孔和环形通道，其中心轴在其出口端处与模具块的中心轴线对齐，在上游延伸到填料进料口。 进料口入口在其两端之间的模块的外表面。 连接到它们的侧端口和填料供给管线不直接从炊具挤出机干涉外壳材料的基本上直的流动路径。 通过孔和环形通道形成在模块的出口端处的突出的尖端延伸到会聚块或锥体中。 来自模具块的外部通道的单独的套管材料流在锥体中会聚或重新形成无缝的，整体的环形外壳层，其包裹外部填料，其使内部填充物成为可能。 小直径挤出物绳可以在挤出后的过程中连续地成形为小直径的零食产品，例如卷边或模制，没有显着的过量或浪费。
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