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1. 发明申请

WO1998006554A2 VACUUM EXTRUSION SYSTEM AND METHOD 审中-公开
标题翻译：真空挤出系统和方法
公开(公告)号：WO1998006554A2
公开(公告)日：1998-02-19
申请号：PCT/US1997014055
申请日：1997-08-11
申请人： UC INDUSTRIES, INC.
发明人： UC INDUSTRIES, INC. , LIGHTLE, Rodger, D. , SADINSKI, Robert, L. , LINCOLN, Robert, M.
IPC分类号： B29C44/34
CPC分类号： B29C44/3407 , B01J3/006 , B01J3/03 , B29C44/3403 , B29C47/0009 , B29C47/34 , B29C47/884 , B29C47/8895 , B29C47/90 , B29C47/905 , B29C47/92 , B29C2947/92104 , B29C2947/92428 , B29C2947/92476 , B29C2947/926 , B29C2947/92923 , B29C2947/92971
摘要： A horizontal vacuum extrusion line includes a fixed bulkhead (23), a die (24) inside the bulkhead, a telescoping vacuum chamber section (27) and a fixed chamber section (28, 29). A dam (33) in the fixed section forms a pond (72) for immersion cooling of the extrudate. A truss (35) extends from the dam to the bulkhead supporting, shaping and calibration equipment and extends through the telescoping section. Fluid pressurizable seals at each end of the telescoping section are operable after the telescoping section is closed against the bulkhead and the telescoping and fixed sections are locked together. The telescoping section provides a more compact line and easier access to the complex equipment downstream of the die. The extrudate from the die passes down into the pond (72) and then through an orifice (74) in a hood (75) projecting from the chamber into a lower level portion of the pond (78) exposed to atmosphere. The hood also includes a tractor drive (88) to push the extrudate through the underwater orifice. The hood and its contents are accessible through the atmospheric pond. A tractor haul-off and the tractor drive in the hood are the only extrudate drives between the calibration equipment and atmosphere. The higher level of the pond (72) within the chamber downstream of the dam is controlled by a valve in turn controlling the output of a pump. The valve control senses the pond level and operates independently of the vacuum controls.
摘要翻译：卧式真空挤压生产线包括固定隔板（23），隔板内部的模具（24），伸缩式真空室部分（27）和固定室部分（28,29）。固定部分中的坝（33）形成用于浸渍冷却挤出物的池（72）。桁架（35）从大坝延伸到隔板支撑，成型和校准设备并延伸穿过伸缩部分。伸缩部分的每端处的流体可加压密封件在伸缩部分相对于舱壁关闭并且伸缩和固定部分被锁定在一起之后是可操作的。伸缩部分提供更紧凑的生产线，更容易进入模具下游的复杂设备。来自模具的挤出物向下流入池塘（72），然后穿过从室中突出到敞开大气的池塘（78）的下部分的罩（75）中的孔口（74）。发动机罩还包括一个拖拉机驱动装置（88），用于推动挤出物通过水下孔口。罩及其内容物可通过大气池进入。拖拉机牵引车和牵引车的驱动器是校准设备和大气之间唯一的挤出机。在坝下游的室内的池塘（72）的较高水平由阀门控制，从而控制泵的输出。阀门控制检测池水位，独立于真空控制器运行。

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