公开(公告)号：US5346388A

公开(公告)日：1994-09-13

申请号：US106617

申请日：1993-08-16

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C45/20 ,  B29C45/26 ,  B29C45/27

CPC分类号： B29C45/27 ,  B29C2045/274

摘要： An injection molding nozzle upon which a thermocouple element can be removably mounted and be self-retained in place. The nozzle has a front portion and a larger diameter rear collar portion with a thermocouple element duct therethrough. A thermocouple element bore extends rearwardly from the front end of the nozzle and a thermocouple element groove extends outwardly across the rear end from the thermocouple element duct. A front portion of a suitably bendable and retentive thermocouple element is inserted into the bore in the front end and bent to extend rearwardly to the duct through the rear collar portion. A rear portion of the thermocouple element is bent into place in the groove in the rear end. The thermocouple element securely retains itself in this position while the nozzle is being installed in the mold.

摘要翻译： 注射成型喷嘴，热电偶元件可以可拆卸地安装在其上并自我保持就位。 喷嘴具有前部和较大直径的后环部分，其具有穿过其中的热电偶元件管道。 热电偶元件孔从喷嘴的前端向后延伸，并且热电偶元件槽从热电偶元件导管的后端向外延伸。 适当弯曲和保持性热电偶元件的前部插入到前端的孔中并弯曲以通过后环部分向后延伸到管道。 热电偶元件的后部在后端的凹槽中弯曲到位。 当喷嘴安装在模具中时，热电偶元件牢固地保持在该位置。

公开(公告)号：US5225211A

公开(公告)日：1993-07-06

申请号：US757600

申请日：1991-09-11

申请人： Hiroshi Imaida ,  Tsujihiko Yasuda

发明人： Hiroshi Imaida ,  Tsujihiko Yasuda

IPC分类号： B29C45/26 ,  B29C45/27 ,  B29C45/28 ,  B29C45/30 ,  B29C45/73

CPC分类号： B29C45/2737 ,  B29C45/27 ,  B29C45/2806 ,  B29C45/30 ,  B29C2045/2717 ,  B29C2045/274 ,  B29C2045/2741 ,  B29C2045/2754

摘要： A hot runner injection molding machine which injects a melt into a cavity formed by a front mold and a movable rear mold. The injection molding machine includes a runner device fixed to a fixed head, gate devices which form orifices through which the melt is injected into the cavity, and heaters for heating the gate devices and detachably attached to the runner device. The gate devices and the heaters can be changed in accordance with the type of molds to be used, without removing or dismantling the runner device, and therefore, the same runner device can be commonly used for different types of molds.

摘要翻译： 一种热流道注塑机，其将熔体注射到由前模具和可移动后模具形成的空腔中。 注射成型机包括固定在固定头上的流道装置，形成孔口的浇口装置，将熔体注入空腔中的浇口装置，以及用于加热浇口装置并可拆卸地连接到流道装置的加热器。 门装置和加热器可以根据所使用的模具的类型而改变，而不需要拆卸或拆卸浇道装置，因此，相同的浇道装置可以用于不同类型的模具。

公开(公告)号：US5147663A

公开(公告)日：1992-09-15

申请号：US595180

申请日：1990-10-09

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B29C45/27 ,  B29C45/30

CPC分类号： B29C45/30 ,  B29C45/2727 ,  B29C45/2737 ,  B29C2045/274 ,  B29C2045/2748

摘要： A modular manifold system is described. A plurality of generally cylindrical manifold components engage a melt distribution element. The manifold components each have a generally cylindrical body which has an annular cavity formed therein which axially extends with the component body for a predetermined length which separates the component body from a component inner core. A melt runner passage extends axially through the inner core. A heating element in the form of a ceramic insulator sleeve occupies a portion of the annular cavity with a particulate refractory material occupying the remainder of the annular cavity.

摘要翻译： 描述了模块化歧管系统。 多个大致圆柱形的歧管部件接合熔体分配元件。 歧管部件各自具有大致圆柱形的主体，其具有形成在其中的环形空腔，其中部件本体轴向延伸预定长度，该部件主体与部件内芯分离。 熔体流道通道轴向延伸穿过内芯。 陶瓷绝缘套的形式的加热元件占据环形腔的一部分，其中颗粒状耐火材料占据环形空腔的其余部分。

公开(公告)号：US4882469A

公开(公告)日：1989-11-21

申请号：US250769

申请日：1988-09-28

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B29C45/27 ,  F27D11/02

CPC分类号： F27D11/02 ,  B29C45/2737 ,  B29C2045/274 ,  B29C2045/2748

摘要： A sprue bushing which eliminates melt leakage and a method of making the same are described. A cylindrical bushing body having a first, preselected uniform diameter has an annular cavity formed therein which axially extends within the bushing body for a predetermined length and which separates the bushing inner core from the bushing body. A heating element in the form of a ceramic insulator sleeve is inserted into the annular cavity and a particulate refractory material is deposited into the annular cavity to fill the remainder of the annular cavity. When filled, the bushing body is swaged down to a second preselected uniform diameter to compact the powdered refractory together with the preformed sleeve to form a solid heating element. A runner passage is then drilled through the inner core so that the inner core is integral with the bushing casing.

摘要翻译： 描述了消除熔体泄漏的浇口衬套及其制造方法。 具有第一预选均匀直径的圆柱形衬套主体具有形成在其中的环形空腔，其在衬套本体内轴向延伸预定长度，并将衬套内芯​​与衬套本体分开。 将陶瓷绝缘体套筒形式的加热元件插入到环形空腔中，并将颗粒状耐火材料沉积到环形空腔中以填充环形空腔的其余部分。 当填充时，衬套主体被倒下至第二预选的均匀直径，以将粉末状耐火材料与预成型套筒一起压实以形成固体加热元件。 然后通过内芯钻出流道通道，使得内芯与套管套管成一体。

公开(公告)号：US4795337A

公开(公告)日：1989-01-03

申请号：US150747

申请日：1988-02-01

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C45/27 ,  A23P1/00

CPC分类号： B29C45/27 ,  B29C45/2735 ,  B29C2045/274 ,  B29C2045/2774 ,  B29C2045/2782 ,  B29C2045/2783

摘要： This invention relates to an improved injection molding nozzle and method of making it. The components are assembled and dipped in lacquer and powdered nickel prior to brazing in a vacuum furnace. This integrally brazes the components together, embeds an electrical heating element in a spiral channel, and provides the surfaces with a protective nickel coating. In one embodiment, the forward end has an integral high speed steel insert and the remote end of the heating element extends into the forward end of the nozzle. In addition to providing the protective coating, carrying out the method with a single vacuum brazing step considerably reduces manufacturing costs.

摘要翻译： 本发明涉及一种改进的注射成型喷嘴及其制造方法。 在真空炉中钎焊之前，将组件组装并浸入漆和粉末镍中。 这些组件将组件整体钎焊在一起，将电加热元件嵌入螺旋通道中，并为表面提供保护性镍涂层。 在一个实施例中，前端具有整体的高速钢插入件，并且加热元件的远端延伸到喷嘴的前端。 除了提供保护涂层之外，通过单个真空钎焊步骤执行该方法大大降低了制造成本。

公开(公告)号：US4771164A

公开(公告)日：1988-09-13

申请号：US32591

申请日：1987-04-01

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C45/27 ,  F27B14/00

CPC分类号： B29C45/2711 ,  B29C45/2737 ,  B29C2045/274 ,  B29C2045/2787

摘要： This invention relates to an improved injection molding nozzle and a method of making it. The nozzle has an electric heating element integrally vacuum cast in copper in spiral channels set in the outer surface of the tool steel nozzle body. The heating element has a cold terminal at one end which projects out through a hole in a head plate which is rotatable prior to casting to ensure the nozzle has a consistent length of heating element cast in. A sleeve is located over the spiral channel prior to casting to ensure the heating element in the channel is covered with a minimum depth of copper to dissipate the heat from the heating element. The spiral channel can be cut with a varying pitch according to a predetermined profile to provide more heat where there is more heat loss.

摘要翻译： 本发明涉及一种改进的注射成型喷嘴及其制造方法。 喷嘴具有在工具钢喷嘴体的外表面上设置的螺旋通道中以铜整体真空铸造的电加热元件。 加热元件的一端具有冷端子，该端子通过头板中的孔突出，该头板可在铸造之前旋转，以确保喷嘴具有一致的加热元件长度。套管位于螺旋通道之前， 铸造以确保通道中的加热元件被铜的最小深度覆盖以散发来自加热元件的热​​量。 可以根据预定的轮廓以不同的间距切割螺旋通道，以在热损失更多的地方提供更多的热量。

公开(公告)号：US4378963A

公开(公告)日：1983-04-05

申请号：US215545

申请日：1980-12-11

申请人： Hendrikus J. E. Schouenberg

发明人： Hendrikus J. E. Schouenberg

IPC分类号： B29C45/28 ,  B29F1/03 ,  B29F1/05

CPC分类号： B29C45/2806 ,  B29C2045/274 ,  B29C2045/2813

摘要： The invention relates to an injection mechanism for molding plastics, comprising at least one injection bushing, at least one lower needle valve, which is supplied by the injection bushing with molten plastics and opened by the pressure of the molten plastics during injection, further comprising heating means and cooling means adjacent to the flow path of the plastics, control means for maintaining the plastics at an adjusted temperature, further control means for injecting the molten plastics into at least one mold cavity via a corresponding injection aperture, and for the closing off the mold cavity after finishing the injection, wherein for improving this mechanism, especially for facilitating very small distances between injection openings, only one plunger within a heated distributor block is provided, which actuates several needle valves, situated at different locations within the distributor block, for supplying the molten plastics to the mold cavity via one single injection bushing, an injection nozzle and several lower injection openings.

摘要翻译： 本发明涉及一种用于模制塑料的注射机构，包括至少一个注射衬套，至少一个下针阀，其由注射衬套供应熔融塑料并在注射期间由熔融塑料的压力打开，还包括加热 邻近塑料流路的装置和冷却装置，用于将塑料保持在调节温度的控制装置，用于通过相应的注射孔将熔融塑料注入至少一个模腔中的另外的控制装置，以及关闭 在完成注射之后的模腔中，其中为了改善这种机制，特别是为了促进注射开口之间的非常小的距离，仅提供加热的分配器块内的一个柱塞，其驱动位于分配器块内的不同位置处的若干针阀，用于 通过一个注射总线将熔融的塑料供应到模具腔 铰链，注射喷嘴和几个较低的注射开口。

公开(公告)号：US4150281A

公开(公告)日：1979-04-17

申请号：US885614

申请日：1978-03-13

申请人： Edward W. Hinz

发明人： Edward W. Hinz

IPC分类号： B29C45/27 ,  H05B3/48

CPC分类号： H05B3/48 ,  B29C45/2737 ,  B29C2045/274 ,  B29C2045/2743

摘要： A heater element is formed by disposing a pair of heater wires and a pair of thermocouple wires and a powdered mineral material in a metal sheath which is subjected to repeated drawing and annealing operations and is then cut to a desired length after which at one end, the heater wires are welded together and the thermocouple wires are welded to the sheath and the sheath is welded to form a closed end wall. At the opposite end, the heater and thermocouple wires are connected to suitable connection wires. The sheath is formed into a helical coil structure and installed in a runnerless bushing of a plastic molding machine.

摘要翻译： 通过在金属护套中设置一对加热丝和一对热电偶丝和粉末矿物材料来形成加热器元件，所述金属护套经受重复的拉伸和退火操作，然后被切割成期望的长度，之后， 加热线被焊接在一起，并且热电偶线被焊接到护套，并且护套被焊接以形成封闭的端壁。 在另一端，加热器和热电偶线连接到合适的连接线。 护套形成螺旋线圈结构并安装在塑料成型机的无轮套管中。

公开(公告)号：US09167628B2

公开(公告)日：2015-10-20

申请号：US12311901

申请日：2007-09-14

申请人： Herbert Gunther

发明人： Herbert Gunther

IPC分类号： F27B14/00 ,  H05B3/42 ,  B29C45/27

CPC分类号： H05B3/42 ,  B29C45/2737 ,  B29C2045/274 ,  B29C2045/2743 ,  B29C2045/2745 ,  B29C2045/2746 ,  B29C2945/7604 ,  B29C2945/7628 ,  Y10T29/49083

摘要： An electric heating unit for hot runner systems, and in particular for hot runner nozzles and/or hot runner manifolds includes at least one tubular or muff-like support and at least one heating layer fitted with heating conductor tracks. The heating layer is a fired foil or a fired thick-film paste and the muff-like support is able to be slipped onto a material feed pipe.

摘要翻译： 用于热流道系统的电加热单元，特别是用于热流道喷嘴和/或热流道歧管的电加热单元包括至少一个管状或闷式支撑件和至少一个装有加热导体轨道的加热层。 加热层是烧制的箔或烧制的厚膜浆料，并且套筒状支撑件能够滑入材料进料管。

公开(公告)号：US20140377395A1

公开(公告)日：2014-12-25

申请号：US14082157

申请日：2013-11-17

申请人： Wistron Corp.

发明人： YUAN-SHIANG LIN ,  AN-CHEN HUNG ,  LI-CHIH CHEN ,  CHIEN-YU KO

IPC分类号： B29C45/72

CPC分类号： B29C45/78 ,  B29C45/2737 ,  B29C2045/274 ,  B29C2045/2741 ,  B29C2945/7604 ,  B29C2945/76277 ,  B29C2945/76287

摘要： A hot runner nozzle structure includes a tubular nozzle and at least one temperature measurement component. The tubular nozzle has an outer wall surface and an inner wall surface defining a flow channel. The tubular nozzle has portions defining at least one thru-hole interconnected the outer wall surface and the inner wall surface. The temperature measurement component has a base and a sensor connected to the base. The base is fixed in the thru-hole. The sensor has a tip protruding beyond the inner wall surface and exposed in the flow channel.

摘要翻译： 热流道喷嘴结构包括管状喷嘴和至少一个温度测量部件。 管状喷嘴具有限定流动通道的外壁表面和内壁表面。 管状喷嘴具有限定将外壁表面和内壁表面互连的至少一个通孔的部分。 温度测量部件具有连接到基座的基座和传感器。 基座固定在通孔中。 该传感器具有突出超过内壁表面并在流动通道中暴露的尖端。