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公开(公告)号：US5507636A
公开(公告)日：1996-04-16
申请号：US312532
申请日：1994-09-26
申请人： Jobst Gellert
发明人： Jobst Gellert
CPC分类号： B29C45/2737 , B29C2045/2751
摘要： An injection molding nozzle with a collar having two segments mounted around the rear end of an elongated central body having a hollow central core. A helical portion of an electrical heating element is cast in a copper alloy conductive portion around the central core. The heating element has a pair of lead portions which extend outwardly through the collar into a ceramic insulative connector. The lead portions extend in stainless steel protective tubes having inner ends rigidly cast in the copper alloy conductive portion over which the insulative connector is mounted.
摘要翻译： 一种具有套环的注射成型喷嘴，其具有安装在具有中空中心芯的细长中心体的后端周围的两个部分。 电加热元件的螺旋部分围绕中心芯铸造在铜合金导电部分中。 加热元件具有一对引线部分，其通过套环向外延伸到陶瓷绝缘连接器中。 引线部分延伸在不锈钢保护管中，其内端刚性地铸造在铜合金导电部分中，绝缘连接器安装在该合金导电部分上。
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公开(公告)号：US20070154588A1
公开(公告)日：2007-07-05
申请号：US11685266
申请日：2007-03-13
申请人： Jobst Gellert , Denis Babin , Jonathon Fischer
发明人： Jobst Gellert , Denis Babin , Jonathon Fischer
IPC分类号： B29C45/74
CPC分类号： B23P15/007 , B29C45/2737 , B29C2045/274 , B29C2045/2741 , B29C2045/2748 , B29C2045/2754 , H05B3/42 , Y10T29/49071 , Y10T29/49083
摘要： The present invention provides an electrically heated nozzle for injection molding which is insulated to prevent conduction of electricity and loss of thermal transmission to the casing, wherein at least a part of the electrical insulation comprises a layer of dielectric insulator material with an electrical resistance wire wound spirally thereabout and another dielectric insulator layer thereover. Also disclosed is a method for making such a nozzle which includes the steps of applying a first insulator layer, winding electrical resistance wire about the first insulator layer, applying a second insulator layer, and applying a casing layer thereover. The first and second insulating layers may be provided by spraying or through telescoping, self-supporting sleeves.
摘要翻译： 本发明提供了一种用于注射成型的电加热喷嘴，其被绝缘以防止电的传导和对壳体的热传递的损失，其中电绝缘体的至少一部分包括具有电阻线的绝缘材料层 螺旋地在其上方和另一个电介质绝缘体层。 还公开了一种制造这种喷嘴的方法，其包括以下步骤：施加第一绝缘体层，围绕第一绝缘体层缠绕电阻线，施加第二绝缘体层，并在其上施加外壳层。 第一和第二绝缘层可以通过喷涂或通过伸缩的自支撑套筒来提供。
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公开(公告)号：US07198740B2
公开(公告)日：2007-04-03
申请号：US10736624
申请日：2003-12-17
申请人： Jobst Gellert , Hans Guenther , Denis Babin , George Olaru
发明人： Jobst Gellert , Hans Guenther , Denis Babin , George Olaru
CPC分类号： B22D17/2272 , B22D17/2281 , B29C45/2737 , B29C45/2896
摘要： The invention relates to an injection molding apparatus including a mold block, a nozzle, a gating system and a slug heater. The mold block defines a mold cavity having a mold cavity inlet. The nozzle has a nozzle inlet. The nozzle inlet is fluidically connectable downstream from a melt source. The nozzle inlet is upstream from the mold cavity inlet. A melt flow passage extends from the nozzle inlet to the mold cavity inlet. The gating system includes a valve pin and an actuator. The valve pin is movable between an open position wherein melt flow is permitted into the mold cavity, and a closed position wherein the valve pin blocks the melt flow passage to prevent melt flow into the mold cavity. The actuator is operatively connected to the valve pin to move the valve pin between the open and closed positions. At least one of the mold block and the valve pin includes a cooling system for selectively solidifying melt to form a slug immediately upstream from the valve pin when the valve pin is in the closed position. In use the slug blocks the melt flow passage to substantially prevent melt leakage past the slug when the valve pin is positioned away from the slug.
摘要翻译： 本发明涉及一种注射成型设备，其包括模块，喷嘴，浇注系统和块状加热器。 模具块限定了具有模腔入口的模腔。 喷嘴具有喷嘴入口。 喷嘴入口在熔体源的下游可流体连接。 喷嘴入口在模腔入口的上游。 熔体流动通道从喷嘴入口延伸到模腔入口。 门控系统包括阀销和执行器。 阀销在允许熔体流入模腔的打开位置和关闭位置之间移动，其中阀销阻塞熔体流动通道以防止熔体流入模腔。 致动器可操作地连接到阀销，以在打开位置和关闭位置之间移动阀销。 模具块和阀销中的至少一个包括冷却系统，用于当阀销处于关闭位置时，用于选择性地固化熔体以形成紧靠阀销上游的块塞。 在使用中，当阀销定位成离开s塞时，块塞将熔体流动通道基本上防止熔体泄漏通过s塞。
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公开(公告)号：US20070148279A1
公开(公告)日：2007-06-28
申请号：US11681593
申请日：2007-03-02
申请人： Jobst Gellert , Denis Babin , Jonathon Fischer
发明人： Jobst Gellert , Denis Babin , Jonathon Fischer
IPC分类号： B29C45/74
CPC分类号： B23P15/007 , B29C45/2737 , B29C2045/274 , B29C2045/2741 , B29C2045/2748 , B29C2045/2754 , H05B3/42 , Y10T29/49071 , Y10T29/49083
摘要： The present invention provides an electrically heated nozzle for injection molding which is insulated to prevent conduction of electricity and loss of thermal transmission to the casing, wherein at least a part of the electrical insulation comprises a layer of dielectric insulator material with an electrical resistance wire wound spirally thereabout and another dielectric insulator layer thereover. Also disclosed is a method for making such a nozzle which includes the steps of applying a first insulator layer, winding electrical resistance wire about the first insulator layer, applying a second insulator layer, and applying a casing layer thereover. The first and second insulating layers may be provided by spraying or through telescoping, self-supporting sleeves.
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公开(公告)号：US20060292256A1
公开(公告)日：2006-12-28
申请号：US11510994
申请日：2006-08-28
申请人： Jobst Gellert , Denis Babin , Jonathon Fischer
发明人： Jobst Gellert , Denis Babin , Jonathon Fischer
CPC分类号： B23P15/007 , B29C45/2737 , B29C2045/274 , B29C2045/2741 , B29C2045/2748 , B29C2045/2754 , H05B3/42 , Y10T29/49071 , Y10T29/49083
摘要： An injection molding hot runner nozzle includes a nozzle body comprising a nozzle core, a nozzle tip, and a melt passage extending through the nozzle body for conveying melt from a manifold through the nozzle tip and to a gate of a mold cavity. A cylindrical sleeve is disposed around the nozzle body, the sleeve being slidably removable from the nozzle body. A wire heating element for heating melt in the melt passage is is spirally wound about the sleeve. A temperature sensor comprising a wire is spirally wound about the sleeve.
摘要翻译： 注塑热流道喷嘴包括喷嘴主体，其包括喷嘴芯，喷嘴尖端和延伸穿过喷嘴体的熔体通道，用于将熔体从歧管传送通过喷嘴头和模腔的浇口。 一个圆柱形套筒设置在喷嘴本体的周围，套筒可从喷嘴体滑动地移除。 用于在熔体通道中加热熔体的线加热元件围绕套筒螺旋缠绕。 包括线的温度传感器围绕套筒螺旋缠绕。
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