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1. 发明授权

US6095789A Adjustable hot sprue bushing 有权
标题翻译：可调节热浇道衬套
公开(公告)号：US6095789A
公开(公告)日：2000-08-01
申请号：US169114
申请日：1998-10-08
申请人： Douglas C. Hepler , Christopher T. Grace , Louis A. Borrelli
发明人： Douglas C. Hepler , Christopher T. Grace , Louis A. Borrelli
IPC分类号： B29C45/27 , B29C45/20
CPC分类号： B29C45/278 , B29C45/27 , B29C45/2737
摘要： A hot sprue bushing is provided for transporting plasticized material from an injection nozzle to a mold cavity while controlling the temperature of the plasticized material. This hot sprue bushing comprises an elongate body having a head, a stem and a distal end portion, and a through passage extending therethrough from end to end through the head, stem and distal end portion of the body for transporting plasticized material through the hot sprue bushing from the heat to the distal end portion thereof. The distal end portion of the body bears a first engaging device, and the head of the body is of greater cross-section than the stem so that the head provides a first abutment surface extending outwardly of the stem. An electrically powered heater is wrapped around the stem of the head in heating conducting relationship therewith. A sleeve surrounds the electrically powered heater; and a tip member has a second engaging device engaged with the first engaging device on the distal end portion of the body, the tip member having a second abutment surface engaged with one end of the sleeve so as to urge the opposed end of the sleeve into engagement with the first abutment surface on the head. The tip member permits egress of plasticized material from the through passage in the body.
摘要翻译：提供了一种热浇道衬套，用于将塑化材料从注射喷嘴运送到模腔，同时控制塑化材料的温度。该热浇道衬套包括具有头部，杆部和远端部分的细长主体以及从头端延伸通过本体的头部，杆部和远端部分的贯穿通道，用于将增塑材料输送通过热浇道从热衬套到其远端部分。主体的远端部分具有第一接合装置，并且主体的头部具有比杆更大的横截面，使得头部提供从杆向外延伸的第一邻接表面。电加热器围绕头部的杆缠绕在与其导热的关系中。套管围绕电动加热器; 并且尖端构件具有与所述主体的远端部分上的所述第一接合装置接合的第二接合装置，所述尖端构件具有与所述套筒的一端接合的第二抵接表面，以将所述套筒的相对端推入与头部上的第一邻接表面接合。尖端构件允许从体内的通道排出增塑材料。

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