公开(公告)号：US06405785B1

公开(公告)日：2002-06-18

申请号：US09493149

申请日：2000-01-28

申请人： Jobst U. Gellert ,  Hakim Belhadjamida

发明人： Jobst U. Gellert ,  Hakim Belhadjamida

IPC分类号： B22D1704

CPC分类号： B22F3/225 ,  B22D11/0405 ,  B22F5/007 ,  B22F7/062 ,  B22F7/08 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  B23P15/007 ,  B29C45/2737 ,  B29C45/2738 ,  B29C2045/2745 ,  B29C2045/2746 ,  B33Y80/00 ,  C23C26/00 ,  B22F3/22 ,  B22F7/06 ,  B22F3/26

摘要： The present invention provides improved heated manifolds, heaters and nozzles for injection molding, having a high strength metal skeleton infiltrated with a second phase metal having higher thermal conductivity. Also disclosed is method of forming a manifold, heater or nozzle preform and infiltrating the preform with a highly thermally conductive material. The invention also provides a method of simultaneously infiltrating and brazing injection molding components of similar or dissimilar materials together.

摘要翻译： 本发明提供改进的加热歧管，用于注射成型的加热器和喷嘴，其具有用具有较高导热性的第二相金属渗透的高强度金属骨架。 还公开了形成歧管，加热器或喷嘴预制件并用高导热材料渗透预成型件的方法。 本发明还提供了一种将类似或不同材料的注塑成分同时渗透和钎焊在一起的方法。

公开(公告)号：US20020054933A1

公开(公告)日：2002-05-09

申请号：US10025768

申请日：2001-12-26

发明人： Jobst U. Gellert ,  Denis Babin ,  Jonathon Fischer

IPC分类号： B29C045/20

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, with first and second electric heaters which can operate independently or simultaneously to heat the melt channel of the nozzle.

摘要翻译： 本发明提供了一种用于注射成型的电加热喷嘴，其被绝缘以防止导电和损失到壳体的热传递，其中第一和第二电加热器可独立地或同时地操作以加热喷嘴的熔体通道。

公开(公告)号：US06323465B1

公开(公告)日：2001-11-27

申请号：US09582553

申请日：2000-12-20

申请人： Jobst U. Gellert ,  Andreas Scheffler

发明人： Jobst U. Gellert ,  Andreas Scheffler

IPC分类号： H05B306

CPC分类号： H05B3/42 ,  B29C45/2737 ,  B29C2045/2743 ,  B29C2045/2748 ,  H05B3/46

摘要： An externally heated hot-runner nozzle for producing injection molded parts has a resistance wire which is composed of an inner electric heating conductor, a ceramic insulating intermediate layer and an outer metal sheath and comprises two end portions to which a heating voltage can be applied, as well as an intermediate section which in the form of a heating coil is assigned to the circumference of the hot-runner nozzle. The resistance wire is characterized in that the two end portions having an outer diameter of 1.5 mm to 2.5 mm are dimensioned to be larger than the intermediate section having an outer diameter of 1.0 mm to 1.8 mm.

摘要翻译： 用于制造注射成型部件的外部加热的热流道喷嘴具有由内部电加热导体，陶瓷绝缘中间层和外部金属护套构成的电阻线，并且包括可以施加加热电压的两个端部， 以及加热线圈形式的中间部分分配给热流道喷嘴的圆周。 电阻丝的特征在于外径为1.5mm〜2.5mm的两端部的尺寸设定为大于外径为1.0mm〜1.8mm的中间部。

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。

公开(公告)号：US6045740A

公开(公告)日：2000-04-04

申请号：US908812

申请日：1997-08-08

申请人： Rudolf Gorlich

发明人： Rudolf Gorlich

IPC分类号： B29C45/26 ,  B29C45/02 ,  B29C45/27 ,  B29C45/46 ,  B29C45/54 ,  B29K101/12

CPC分类号： B29C45/021 ,  B29C45/02 ,  B29C2045/0094 ,  B29C45/2737 ,  B29C45/54 ,  B29L2031/756

摘要： In a process for the simultaneous manufacturing of a plurality of injection-molded micro parts from thermoplastic or cross-linking polymers in an injection molding tool, an injection device is provided which has injection cylinders, injection pistons and temperable antechambers. The plastic melt coming from a conveyor worm, by way of temperable sprues, first arrives in the antechambers and, in a second step, is supplied by the injection pistons by way of the injection nozzles to the mold cavities. The mold cavities are filled independently of one another. The co-solidifying runners are eliminated, and it is possible to manufacture particularly small parts with a low injection volume at particularly reasonable cost.

摘要翻译： 在注射成型工具中从热塑性或交联聚合物同时制造多个注塑微型部件的方法中，提供了一种具有注射缸，注射活塞和可回火前膛的注射装置。 来自输送机蜗杆的塑料熔体通过可调节的浇道首先到达前室，并且在第二步骤中，通过注射活塞通过注射喷嘴供应到模腔。 模腔相互独立地填充。 消除了共凝固流道，并且可以以特别合理的成本制造具有低注射量的特别小的部件。

公开(公告)号：US6022210A

公开(公告)日：2000-02-08

申请号：US978618

申请日：1997-11-26

申请人： Herbert Gunther

发明人： Herbert Gunther

IPC分类号： B29C45/27 ,  H05B3/42 ,  H05B3/48 ,  B29C45/20

CPC分类号： H05B3/48 ,  B29C45/2737 ,  H05B3/42 ,  B29C2045/274 ,  B29C2045/2748

摘要： A hot runner nozzle structure provides insulation to reduce heat transfer to a utilizing tool and to increase accuracy of temperature measurement and control. A shaft foot of extremely low heat conductivity is used to separate a point of contact between a feed tube shaft and the tool. The shaft foot may be formed of titanium for example. An insulating cap of extremely low heat conductivity is surrounds the shaft foot in the vicinity of the nozzle tip. The cap may be formed of PEEK or of titanium for example. Gaps may be provided between the insulating cap and shaft foot and between the shaft foot and feed tube shaft. In an alternate embodiment having smaller dimensions, an insulating ring is provided at the end of the feed tube shaft. The structure, combined with a positioning sleeve surrounding the feed tube shaft, permits placing a heat sensor much closer to the nozzle tip in order to obtain more accurate temperature measurements.

摘要翻译： 热流道喷嘴结构提供绝缘以减少对利用工具的传热并提高温度测量和控制的精度。 使用极低导热性的轴脚来分离进料管轴和工具之间的接触点。 轴脚可以由钛形成，例如。 具有极低导热性的绝缘帽围绕着喷嘴尖端附近的轴脚。 盖可以由例如PEEK或钛形成。 可以在绝缘盖和轴脚之间以及轴脚和进料管轴之间提供间隙。 在具有较小尺寸的替代实施例中，绝缘环设置在进料管轴的端部。 该结构与围绕进料管轴的定位套筒组合，允许将热传感器放置得更靠近喷嘴尖端，以获得更准确的温度测量。

公开(公告)号：US5851565A

公开(公告)日：1998-12-22

申请号：US797732

申请日：1997-02-11

申请人： Jerry L. Garver ,  Gerald D. Hudack

发明人： Jerry L. Garver ,  Gerald D. Hudack

IPC分类号： B29C45/27 ,  B29C45/20 ,  B29C45/74

CPC分类号： B29C45/2737 ,  B29C45/27

摘要： A nozzle assembly for use with injection molding apparatus includes an outer sleeve having a relatively large bore extending from an open rearward end forwardly to a substantially closed forward end, and having an injection orifice therein. An inner nozzle tip is located within the sleeve, and has a radial flange and an internal extending from a rearward open end to a forward tip having a plurality of flow orifices upstream of the injection orifice. A manifold insert is located within the outer sleeve and includes a through bore in axial alignment with the bore of the nozzle tip. The manifold insert has a forward end which receives the nozzle tip and which abuts the radial flange. A coil heater is located radially between the manifold and the outer sleeve, a forward end of the coil heater seated on the radial flange. The manifold insert, nozzle tip and coil heater form a subassembly which is easily removed and reinserted vis-a-vis the outer sleeve.

摘要翻译： 用于注射成型设备的喷嘴组件包括具有相对较大的孔的外套筒，其从敞开的后端向前延伸到基本上封闭的前端，并且在其中具有注射孔。 内部喷嘴尖端位于套筒内，并且具有径向凸缘和从后部开口端延伸到具有在喷射孔上游的多个流动孔的前部尖端的内部。 歧管插入件位于外套筒内并且包括与喷嘴尖端的孔轴向对准的通孔。 歧管插入件具有接收喷嘴尖端并且邻接径向凸缘的前端。 线圈加热器径向位于歧管和外套筒之间，线圈加热器的前端位于径向凸缘上。 歧管插入件，喷嘴头和线圈加热器形成了相对于外套筒容易地移除和重新插入的子组件。

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

IPC分类号： B29C45/20 ,  B29C45/27 ,  B29C45/74

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。

公开(公告)号：US5423670A

公开(公告)日：1995-06-13

申请号：US133328

申请日：1993-10-08

申请人： Julio E. Hamel

发明人： Julio E. Hamel

IPC分类号： B29C45/27 ,  B29C45/73

CPC分类号： B29C45/2737 ,  B29C45/7312 ,  B29C2045/4015 ,  B29C2045/7325 ,  B29C2045/7362 ,  B29L2031/3468 ,  B29L2031/7134

摘要： In injection molding, a mold forms a wall member, which defines a cavity, by bringing together two mold halves. The cavity wall is formed by a specially machined cavity plate having built-in support columns, fins and ejector pins columns. The plate forms a passageway and in-out flow chambers on the opposite side from the cavity surface which completely surrounds the cavity where coolant or heating circulating carrier flows at high rates. The resulting flow of coolant/heating carrier at high rates can be controlled by special positioning of the flow chambers and creates added turbulence. The built-in support columns, fins and ejector pins also dramatically increase the area of contact of the flow carrier with the cavity plate. The design incorporates built-in support columns and fins which make possible a thinner cavity surface plate by adding strength and structural support to the cavity area. The exact arrangement and geometry of the built-in support columns, fins, and flow chamber depend on the part design and can be adjusted depending on the application to increase the uniformity and heat transfer rates. The plate design can be adapted to movable cores and stationary mold cavity cores.

摘要翻译： 在注射成型中，通过将两个半模组合在一起，模具形成了限定空腔的壁构件。 空腔壁由具有内置支撑柱，翅片和顶针柱的特殊加工的腔板形成。 该板在与空腔表面相反的一侧上形成通道和入口流动室，其完全围绕腔体，其中冷却剂或加热循环载体以高速率流动。 可以通过流动室的特殊定位来控制所产生的高速率的冷却剂/加热载体的流动并产生附加的紊流。 内置的支撑柱，散热片和顶针也显着增加了流动载体与腔板的接触面积。 该设计采用内置支撑柱和翅片，通过向腔体区域增加强度和结构支撑，可以使腔体表面更薄。 内置支撑柱，翅片和流动室的精确排列和几何形状取决于零件设计，可根据应用进行调整，以增加均匀性和传热率。 板设计可以适应于可动芯和固定模腔芯。

公开(公告)号：US5320513A

公开(公告)日：1994-06-14

申请号：US988863

申请日：1992-12-10

申请人： Harald Schmidt

发明人： Harald Schmidt

IPC分类号： B29C45/17 ,  B29C33/00 ,  B29C45/27 ,  B29C45/73 ,  B29C45/76 ,  B29C45/78 ,  H05K1/14 ,  B29C45/20

CPC分类号： B29C33/0083 ,  B29C45/2737 ,  B29C2045/1786 ,  B29C2045/2751 ,  B29C45/27 ,  B29C45/2738 ,  B29C45/76 ,  B29C45/78

摘要： An injection molding station includes a mold manifold plate housing a plurality of injection molding nozzles and housing heaters for the plurality of injection molding nozzles; at least one printed circuit board associated with the mold manifold plate; and a power source; wherein the at least one printed circuit board electrically connects the power source with the heaters. Each printed circuit board has at least one power layer printed with a plurality of power supply tracks, the power supply tracks being connected at a first end to the power source and at a second end to a respective heater. Each nozzle may also have a respective temperature sensing device, the printed circuit board having at least one sensor layer printed with sensor tracks, the sensor tracks being connected at a first end to a respective temperature sensing device, and at a second end to a controlling device.

摘要翻译： 注塑站包括容纳多个注射成型喷嘴的模具歧管板和用于多个注射成型喷嘴的壳体加热器; 与模具歧管板相关联的至少一个印刷电路板; 和电源; 其中所述至少一个印刷电路板将所述电源与所述加热器电连接。 每个印刷电路板具有印刷有多个电源轨道的至少一个电源层，电源轨道在第一端连接到电源，第二端连接到相应的加热器。 每个喷嘴还可以具有相应的温度感测装置，印刷电路板具有印刷有传感器轨迹的至少一个传感器层，传感器轨道在第一端连接到相应的温度感测装置，并且在第二端连接到控制 设备。