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：US06638053B2

公开(公告)日：2003-10-28

申请号：US10025767

申请日：2001-12-26

申请人： Jobst U. Gellert ,  Denis Babin ,  Jonathon Fischer

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

IPC分类号： B29C4520

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 thermocouples for sensing temperature of the nozzle, the two thermocouples are independent so they can act either independently or simultaneously to sense temperature conditions in the melt channel of the nozzle.

摘要翻译： 本发明提供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，具有用于感测喷嘴温度的第一和第二热电偶，两个热电偶是独立的，因此它们可以作用于 独立地或同时地感测喷嘴的熔体通道中的温度条件。

公开(公告)号：US06561789B2

公开(公告)日：2003-05-13

申请号：US10025768

申请日：2001-12-26

申请人： Jobst U. Gellert ,  Denis Babin ,  Jonathon Fischer

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

IPC分类号： B29C4520

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：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：US5536165A

公开(公告)日：1996-07-16

申请号：US464286

申请日：1995-06-05

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C45/27 ,  B29C45/20

CPC分类号： B29C45/2735

摘要： Injection molding apparatus having several side gate seals extending radially from a heated nozzle. The nozzle has a locating flange portion which is received in an opening in the mold. This laterally locates the nozzle while allowing it to be advanced for mounting of the side gate seals and then retracted to an assembled position where it is longitudinally located by the side gate seals being received in the mold. Thus, the nozzle is longitudinally located in the same plane as the gates and in one embodiment a melt distribution manifold is free to float with the rear ends of the nozzles. This also provides for differences in the thermal expansion due to possible different operating temperatures.

摘要翻译： 具有从加热喷嘴径向延伸的多个侧栅密封件的注塑设备。 喷嘴具有容纳在模具中的开口中的定位凸缘部分。 这个侧向定位喷嘴，同时允许其前进用于安装侧门密封件，然后缩回到组装位置，在该组装位置，其通过侧浇口密封件被容纳在模具中而被纵向定位。 因此，喷嘴纵向地位于与浇口相同的平面中，并且在一个实施例中，熔体分配歧管与喷嘴的后端自由浮动。 这也提供了由于可能的不同操作温度导致的热膨胀差异。

公开(公告)号：US5441197A

公开(公告)日：1995-08-15

申请号：US373444

申请日：1995-01-17

申请人： Jobst U. Gellert ,  Randy Zeust ,  Hans Guenther

发明人： Jobst U. Gellert ,  Randy Zeust ,  Hans Guenther

IPC分类号： B23K1/008 ,  B23K31/02

CPC分类号： B23K1/008

摘要： A method of making an injection molding melt distribution manifold wherein the melt passage branches through a number of elbows leading to different gates. Each elbow is preformed in a cylindrical plug which fits in a bore in an outer end of the manifold in alignment with a lateral portion of the melt channel. A brazing hole with an upward mouth is drilled in the outer surface of the plug and nickel alloy brazing powder is poured into it. After insertion into the bore in the manifold, the plug is rotated with a suitable tool to a predetermined position with the mouth of the brazing hole pointed downward. The manifold is then heated in a vacuum furnace to integrally braze the plugs in place simultaneously with brazing an electrical heating element in a channel in the manifold. The melt passage is then completed by drilling an outlet bore from the front face of the manifold to the outlet of each elbow.

摘要翻译： 一种制备注射成型熔体分配歧管的方法，其中熔体通道分支通过导致不同浇口的多个弯头。 每个弯头都被制成圆柱形塞子，该圆柱形塞子装配在歧管外端的孔中，与熔体通道的侧部对准。 在塞子的外表面钻出一个带有向上的口的钎焊孔，并将镍合金钎焊粉浇入其中。 在插入歧管中的孔中之后，将插头用合适的工具旋转到预定位置，钎焊孔的嘴向下指向。 然后在真空炉中加热歧管，以便将歧管内的电加热元件钎焊在一起，以将塞子整体钎焊到位。 然后通过从歧管的前表面钻出出口孔到每个弯头的出口来完成熔体通道。

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：US5268184A

公开(公告)日：1993-12-07

申请号：US931208

申请日：1992-08-17

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C45/20 ,  B29C45/26 ,  B29C45/27 ,  B29C45/74

CPC分类号： B29C45/2735 ,  B29C45/27 ,  B29C45/278 ,  B29C2045/2761 ,  B29C2045/2775 ,  B29C2045/2779 ,  B29C2045/2785

摘要： A heated injection molding nozzle having a rear member and a forward member which is removable. A channel extends through the rear and forward members to convey pressurized melt to one or more gates extending through the mold to a cavity. The rear member has an electrical heating element with a spiral portion which extends around the melt channel. The forward member has a tapered rear portion which extends rearwardly into a matching tapered well in the rear member. The taper is sufficient so the tapered portion is frictionally retained in the well to removably mount the forward member to the rear member. This allows the forward member to be easily turned or driven out of engagement in the well to replace it with a new forward member or a forward member having a different configuration to provide a different type or arrangement of gating.

公开(公告)号：US5206040A

公开(公告)日：1993-04-27

申请号：US835501

申请日：1992-02-14

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

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

CPC分类号： B29C45/30 ,  B29C45/27 ,  B29C2045/2787 ,  B29C2045/308

摘要： This invention relates to a hot tip gated injection molding apparatus having a heated manifold to distribute melt to a number of spaced gates. An unheated sealing and conductive member is mounted directly between the heated manifold and the cooled cavity plate in alignment with each gate. The sealing and conductive member has an elongated hot tip shaft which is connected to extend centrally through the bore of an outer collar portion by a number of spaced spiral blades. The collar portion bridges an insulative air space between the hot manifold and cooled cavity plate to prevent melt leaking into it. Heat received through the rear end of the collar portion which abuts directly against the heated manifold is transferred through the blades and the hot tip shaft to the gate area which is aligned with the pointed forward end of the hot tip shaft. The rear end of the hot tip shaft extends rearwardly into a branch of the melt passage to pick up heat from the surrounding melt. The hot tip shaft has a highly conductive inner portion inside an abrasion resistant outer portion to conduct heat to and away from the gate area during different parts of the injection cycle. The spiral blades impart a swirling motion to the melt which flows between them.

公开(公告)号：US5118280A

公开(公告)日：1992-06-02

申请号：US678729

申请日：1991-04-01

申请人： Jobst U. Gellert

发明人： Jobst U. Gellert

IPC分类号： B29C33/04 ,  B29C45/03 ,  B29C45/27 ,  B29C45/32 ,  B29C45/73 ,  B29C45/78

CPC分类号： B29C45/322 ,  B29C45/2737 ,  B29C2045/2753

摘要： Injection molding apparatus with integral heating and cooling in the forward portion of a nozzle adjacent the gate. Cooling fluid tubes extend to the forward portion of the nozzle through a surrounding insulative air space which reduces problems of thermal expansion and contraction. A split seating ring is seated in the cavity plate and extends across the insulative air space to receive the nozzle. The seating ring has an outer opening for the cooling fluid tubes to pass therethrough.