发明名称 |
Screw tip of an extruder screw |
摘要 |
An extruder for the extrusion of a material composed of a mixture of substances in which an extruder screw is rotatably mounted in a feed channel of a housing for advancing the material to an outlet, of the channel whereat a screw tip is coaxially mounted on the extruder screw and is disposed with clearance in a distributor channel extending in prolongation of the feed channel to receive the material from the extruder screw and feed the material to a discharge outlet of the distributor channel. The screw tip has a discharge surface at an end thereof remote from the extruder screw, which includes a plurality of surface portions ascending generally helically in the direction of flow of the material. The surface portions can be flat or form a continuous discharge surface. A conveyor channel for material is formed in the screw tip and extends over an angular portion of the screw tip from a radial discharge edge of the discharge surface so that the conveyor channel is entirely open at the outer periphery of the screw tip.
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申请公布号 |
US4863364(A) |
申请公布日期 |
1989.09.05 |
申请号 |
US19880220460 |
申请日期 |
1988.07.18 |
申请人 |
WERNER & PFLEIDERER GMBH |
发明人 |
GRIMMINGER, ALBERT;MUELLER, FRANZ-JOSEF;SAEMANN, HANS-JOACHMI |
分类号 |
B29C47/60;B29C47/40;B29C47/64 |
主分类号 |
B29C47/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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