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1. 发明申请

WO1981000823A1 ASSEMBLY FOR EXTRUDING PIPE 审中-公开
标题翻译：挤出管组装
公开(公告)号：WO1981000823A1
公开(公告)日：1981-04-02
申请号：PCT/NO1980000028
申请日：1980-09-09
申请人： AS SONNICHSEN RORVALSEVERKET , BOEN P
发明人： AS SONNICHSEN RORVALSEVERKET
IPC分类号： B29D23/04
CPC分类号： B29C47/24 , B29C47/0023 , B29C47/0033 , B29L2023/003
摘要： An assembly for extruding circular, cylindrical plastic piping, comprising an extruder (1, 2) with a feed screw (1) for transporting and softening the mass (9), and an annular nozzle with a central mandrel (4) which constitutes a circular, cylindrical, coaxial extension (4, 4') of the feed screw (1). The stationary outer mold section (3) of the annular nozzle is provided with one or more parallel, helical grooves (6) with the direction of the thread being in the direction of rotation for the screw (1) and mandrel (4). The mandrel (4) has a roughened surface or is provided with axial grooves or low ribs over at least a portion of its length. In addition alternate assembly for extruding circular, cylindrical plastic piping, comprising an extruder (1, 2) with a feed screw (2) for transporting and softening the mass, and an annular nozzle with a central mandrel which constitutes a circular cylindrical, coaxial extension (4, 4') of the feed screw (2), the rotating mandrel (4) is provided with helical grooves (14) on its outside surface. Lubrication is provided on the sliding surface, and the stationary outer mold section of the annular nozzle is smoothly cylindrical.
摘要翻译：一种用于挤出圆形圆柱形塑料管道的组件，包括具有用于输送和软化质量块（9）的进料螺杆（1）的挤出机（1,2）和具有构成圆形的中心心轴（4）的环形喷嘴，进给螺杆（1）的圆柱形同轴延伸部（4,4'）。环形喷嘴的固定外模具部分（3）设置有一个或多个平行的螺旋槽（6），螺纹的方向沿着螺杆（1）和心轴（4）的旋转方向。心轴（4）具有粗糙表面或在其长度的至少一部分上设置有轴向槽或低肋。另外用于挤出圆形圆柱形塑料管道的替代组件包括具有用于输送和软化物料的进料螺杆（2）的挤出机（1,2）和具有中心心轴的环形喷嘴，所述中心心轴构成圆柱形同轴延伸部（4）的进给螺杆（4,4'）上，旋转心轴（4）在其外表面上设有螺旋槽（14）。在滑动面上设置润滑，环形喷嘴的固定外模部分平滑地圆柱形。

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