公开(公告)号：US6102560A

公开(公告)日：2000-08-15

申请号：US215835

申请日：1998-12-17

Applicant: Robert Grimm ,  Stefan Nikolaus

Inventor： Robert Grimm ,  Stefan Nikolaus

IPC: B29C47/60 ,  B29C47/84 ,  B29B7/82

CPC classification number: B29C47/60 ,  B29C47/84 ,  B29C47/842 ,  B29C47/0009

Abstract: An extruder screw, includes a head portion having a front end and having formed therein a temperature-control bore and a counterbore extending the bore to the front end for supply and drainage of a fluid. A locking screw has a screw thread, with a first section of the screw thread received in the bore and a second section of the screw thread extending in the counterbore and projecting out of the head portion. The extruder screw further includes a screw tip which threadably engages the second section of the screw thread to close off the extruder screw, and a sealing member which is received in a counterbore of the head portion, wherein the locking screw is so configured as to apply a substantial force against the sealing member when engaging the locking screw into the bore, to thereby effectively seal the bore.

Abstract translation: 挤出机螺杆包括具有前端并且在其中形成有温度控制孔的头部部分和将孔延伸到前端的沉孔，用于供应和排出流体。 锁定螺钉具有螺纹，螺纹的第一部分容纳在孔中，螺纹的第二部分在沉孔中延伸并伸出头部。 挤出机螺杆还包括螺纹头部，螺纹头部螺纹接合螺纹的第二部分以关闭挤出机螺杆;以及密封构件，其被容纳在头部的沉孔中，其中锁定螺钉被构造成施加 当将锁定螺钉接合到孔中时相对于密封构件的实质力，从而有效地密封孔。