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公开(公告)号：US5980237A
公开(公告)日：1999-11-09
申请号：US163577
申请日：1998-09-30
CPC分类号： B29C45/27 , B29C45/2735 , B29C2045/2761
摘要： An injection molding nozzle for disposition in a mold. The nozzle is for injecting melt into a cavity of the mold, and includes a body having a through bore extending therethrough for receiving the melt. Attached to the body of the nozzle is a nozzle piece secured to the body that defines an outlet communicating between the body through bore and the cavity gate. A nozzle member surrounds the body at a position upstream of the nozzle piece and has an inner surface contacting the body, and an outer surface contacting the mold. The outer surface forms a seal against melt flow upstream from the nozzle member.
摘要翻译： 一种用于配置在模具中的注射成型喷嘴。 喷嘴用于将熔体注入模具的空腔中，并且包括具有延伸穿过其中的用于接收熔体的通孔的主体。 附着在喷嘴主体上的是一个固定在主体上的喷嘴件，该喷嘴件限定了一个与主体通孔和腔体浇口连通的出口。 喷嘴构件在喷嘴件的上游位置处围绕主体，并且具有与主体接触的内表面和与模具接触的外表面。 外表面在喷嘴构件上游形成了抵抗熔体流动的密封。
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72.发明授权
公开(公告)号：US5980236A
公开(公告)日：1999-11-09
申请号：US100989
申请日：1998-06-22
CPC分类号： B29C45/27 , B29C2045/2772
摘要： Injection molding apparatus having a number of heated nozzles extending in a row from an elongated heated melt distribution manifold. Each heated nozzle has a pair of mounting flanges extending outwardly in opposite directions adjacent its rear end. Hollow insulating and locating bushings extend forwardly from the mounting flanges to the cooled cavity plate. The combination of the mounting flanges and the insulating and locating bushings accurately locates the heated nozzles very closely together in a row and spaces the heated elongated melt distribution manifold rearwardly from the cooled cavity plate.
摘要翻译： 注射成型设备具有多个加热的喷嘴，其从细长的加热的熔体分配歧管排成一列。 每个加热喷嘴具有一对安装凸缘，其相对于其后端在相反方向向外延伸。 空心绝缘和定位衬套从安装法兰向前延伸到冷却的腔板。 安装法兰和绝缘和定位衬套的组合将加热的喷嘴精确地定位在一起，并将加热的细长的熔体分配歧管从冷却的腔板向后空间定位。
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公开(公告)号：US5931755A
公开(公告)日：1999-08-03
申请号：US812355
申请日：1997-03-05
申请人： John Mailey , John Cooper
发明人： John Mailey , John Cooper
CPC分类号： B29C45/27 , B29C45/0005 , F16H55/48 , B29C2045/0027 , B29C45/0025 , B29C45/0046 , B29K2081/04 , B29L2031/322 , Y10S474/903
摘要： A pulley is provided which is capable of being used as an alternator pulley. The pulley has a central hub portion for connecting the pulley to a shaft and a belt engaging portion disposed radially outward from the central hub portion. The central hub portion and the belt engaging portion are injection molded from a thermoplastic polyphenylene sulfide polymer material. The pulley provides approximately a 75% weight reduction in comparison to conventional metal pulleys used in automotive applications. The pulley is injection molded having a sprue gate located substantially in a center of said central hub portion. A bushing is optionally provided in a center opening in said central hub portion.
摘要翻译： 提供能够用作交流发电机滑轮的滑轮。 滑轮具有用于将滑轮连接到轴的中心毂部分和从中心轮毂部分径向向外设置的皮带接合部分。 中心毂部分和带接合部分由热塑性聚苯硫醚聚合物材料注塑成型。 与汽车应用中使用的常规金属滑轮相比，滑轮减轻了大约75％的重量。 滑轮注塑成型，其具有基本上位于所述中心毂部分的中心的浇道浇口。 衬套可选地设置在所述中心毂部分的中心开口中。
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公开(公告)号：US5879727A
公开(公告)日：1999-03-09
申请号：US785841
申请日：1997-01-21
申请人： Rajan Puri
发明人： Rajan Puri
CPC分类号： B29C45/2711 , B29C45/27 , B29C45/278 , B29C2045/2766 , B29C2045/2783 , B29C2045/2785
摘要： A modular injection nozzle system for use with hot runner injection machines employs a thermal insulating element between the tip of the injection nozzle and a removable mold gate insert. This thermal insulating element limits the heat loss from the tip to the gate insert, assists in sealing the gate area and provides assistance in aligning the gate and the nozzle during assembly. The removable mold gate insert allows for eased servicing and assembling/dis-assembling of the injection nozzle system and has limited contact with the mold plate. In one embodiment, the removable gate insert is mounted to the nozzle via the insulating member, which is in the form of a sleeve with exterior threads which are complementary to interior threads on the gate insert. The sleeve can either be press-fit onto the nozzle or can have interior threads which are complementary to exterior threads on the nozzle. In either case, the sleeve can assist in the alignment of the components of the nozzle system. In another embodiment, the insulating element also includes an gap between the nozzle tip and the gate insert, the gap having a suitable insulating gas or vacuum therein to provide additional insulation. In another embodiment, the insulating element comprises a layer of insulating material on the nozzle tip and the gate insert can either be press fit with the layer or the layer can have exterior threads can into it to engage complementary threads on the gate insert. In another embodiment, the insulating element is molded in place on the nozzle tip.
摘要翻译： 与热流道注射机一起使用的模块化注射喷嘴系统在注射喷嘴的尖端和可移除的模具浇口插入件之间采用绝热元件。 这种绝热元件限制了从尖端到栅极插入件的热损失，有助于密封浇口区域，并在组装过程中提供对齐浇口和喷嘴的辅助。 可移动的模具浇口插入件允许喷射喷嘴系统的易于维护和组装/拆卸，并且与模具板具有有限的接触。 在一个实施例中，可拆卸的门插入件经由绝缘构件安装到喷嘴，该绝缘构件是具有外部螺纹的套筒形式，该外部螺纹与栅极插入件上的内螺纹互补。 套筒可以压配合到喷嘴上，或者可以具有与喷嘴上的外螺纹互补的内螺纹。 在任一情况下，套筒可以帮助喷嘴系统的部件的对准。 在另一个实施例中，绝缘元件还包括喷嘴尖端和浇口插入件之间的间隙，间隙在其中具有合适的绝缘气体或真空以提供额外的绝缘。 在另一个实施例中，绝缘元件包括在喷嘴尖端上的绝缘材料层，并且栅极插入件可以与该层压配合，或者该层可以具有外部螺纹可以插入其中以接合栅极插入件上的互补螺纹。 在另一个实施例中，将绝缘元件模制在喷嘴尖端上的适当位置。
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公开(公告)号：US5795599A
公开(公告)日：1998-08-18
申请号：US747438
申请日：1996-11-12
申请人： Jobst Ulrich Gellert
发明人： Jobst Ulrich Gellert
CPC分类号： B29C45/2711 , B29C45/27 , B29C2045/274 , B29C2045/2759 , B29C2045/2761
摘要： Injection molding apparatus with a guide and sealing ring mounted around the front end of a heated nozzle. The stainless steel ring fits around the nozzle and has fingers which are bent over the front end of the nozzle to hold it in place. A thermocouple element extends through a groove in the ring and is bent into a hole in the front end of the nozzle. One of the fingers is bent over the thermocouple element to hold it in place. The outer surface of the ring has a circumferential beveled surface leading to a ridge which guides the nozzle into place during insertion and provides a secondary seal against melt leakage. A number of rearwardly extending fingers have notches to receive a wire wound around the nozzle to hold the thermocouple element and the ring itself in place.
摘要翻译： 具有围绕加热喷嘴的前端安装的引导和密封环的注塑设备。 不锈钢环安装在喷嘴周围，并具有在喷嘴前端弯曲的手指，以将其固定到位。 热电偶元件延伸穿过环中的凹槽并弯曲成在喷嘴前端的孔。 其中一根手指弯曲在热电偶元件上以将其固定到位。 环的外表面具有通向脊的周向倾斜表面，该脊在插入期间将喷嘴引导到位，并提供二次密封以防止熔体泄漏。 许多向后延伸的指状物具有凹口以接收围绕喷嘴缠绕的线以将热电偶元件和环自身保持在适当位置。
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76.发明授权Method and apparatus for restraining plastic material in insulated runner system from contacting mold parts upon separation thereof 失效用于在绝缘浇道系统中限制塑性材料的分离方法和装置可以使模具部件接触
公开(公告)号：US5707577A
公开(公告)日：1998-01-13
申请号：US650720
申请日：1996-05-20
CPC分类号： B29C45/322 , B29C45/27 , B29C2045/2795
摘要： In an injection molding apparatus in which first and second mold parts are combined to define therebetween an insulated section of a runner system through which molten plastic material is injected into at least one mold cavity, spring-biased plungers are included in at least one of the first and second mold parts for restraining a shell of plastic material within at least a part of the insulated section of the runner system from contacting any portion of at least one of the mold parts within the insulated section of the runner system other than the plungers when the first and second mold parts are separated from one another.
摘要翻译： 在注射成型设备中，其中第一和第二模具部件组合以在其间限定浇道系统的绝缘部分，熔融塑料材料通过该绝缘部分注入到至少一个模腔中，弹簧偏置的柱塞包括在至少一个 用于在流道系统的绝缘部分的至少一部分内限制塑料材料壳体的第一和第二模具部件不接触流道系统的不同于柱塞的绝缘部分内的至少一个模具部件的任何部分， 第一和第二模具部件彼此分离。
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公开(公告)号：US5609893A
公开(公告)日：1997-03-11
申请号：US372045
申请日：1995-01-12
申请人： Gregg Eastwood
发明人： Gregg Eastwood
CPC分类号： B29C45/27 , B29C2045/2779 , B29C2045/2796
摘要： A temperature and molding material pressure compensated probe for use in injection molding apparatus. The probe includes a two-part telescoping body with a molding material filled space therebetween. Longitudinal thermal expansion which formerly presented sealing problems only results in changes in the extent of telescoping overlap. Molding material pressure is applied equally to both probe parts tending to improve sealing. The molding material filled space has a greater transverse area than all outlets and passages.
摘要翻译： 用于注射成型设备的温度和成型材料压力补偿探头。 探头包括两部分的伸缩体，其间具有填充空间的成型材料。 以前提出的密封问题的纵向热膨胀仅导致伸缩重叠程度的变化。 成型材料压力同样适用于倾向于改善密封性的两个探针部件。 成型材料填充空间具有比所有出口和通道更大的横向面积。
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公开(公告)号：US5507635A
公开(公告)日：1996-04-16
申请号：US364962
申请日：1994-12-28
申请人： Jobst U. Gellert
发明人： Jobst U. Gellert
CPC分类号： B29C45/27 , B29C2045/2772
摘要： An injection molding nozzle with an elongated body removably seated in a one-piece outer collar. The outer collar has a circular insulation flange which seats in the mold to locate the nozzle. The elongated body has an electrical heating element coiled around a central melt channel. Terminal portions of the heating element extend outwardly through a U-shaped opening in the outer collar into a ceramic connector. The connector is secured in place by an inner lip which slides into a groove around the U-shaped opening.
摘要翻译： 一种注射成型喷嘴，其具有可拆卸地安置在一体式外套环中的细长体。 外圈具有圆形绝缘凸缘，其位于模具中以定位喷嘴。 细长体具有围绕中心熔体通道卷绕的电加热元件。 加热元件的端子部分通过外部套环中的U形开口向外延伸成陶瓷连接器。 连接器通过内唇缘固定在适当的位置，该内唇滑入U形开口周围的凹槽中。
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79.发明授权Apparatus for injection molding articles of amorphous polyethylene terephthalate 失效用于注射成型无定形聚对苯二甲酸乙二醇酯的设备
公开(公告)号：US5492467A
公开(公告)日：1996-02-20
申请号：US175617
申请日：1993-12-30
申请人： William J. Hume , Paul M. Swenson
发明人： William J. Hume , Paul M. Swenson
CPC分类号： B29C45/27 , B29C45/2708 , B29C45/278 , B29C2045/2769
摘要： A system and apparatus for injection molding articles of crystallizable polymeric materials in a substantially completely amorphous state is provided. The system includes (i) a mold defining an article formation cavity and an outer cavity connected by a gate, (ii) a melt transport mechanism including a bushing having a distal portion located in the outer cavity in close proximity to the gate inlet, and (iii) a source of molten material. The geometric configurations of the distal portion of the bushing, the inner portion of the outer cavity and the gate, and the relative locations of the distal end of the bushing and the inlet of the gate are each selected such that melt material may flow from the source through the melt transport mechanism and gate into the article formation cavity. The melt transport mechanism is maintained at a temperature above the characteristic crystal melt temperature of the polymeric material. The mold temperature is maintained well below the minimum characteristic glass transition temperature of the polymeric material. Further, the geometric configuration of the elements is selected such that the vestige which protrudes from the completed article has a minimum length, and such that during the interval between successive cycles only a small volume of melt located between the discharge orifice of the bushing and the outlet of the gate is allowed to crystallize.
摘要翻译： 提供了一种用于注射模制基本上完全非晶状态的可结晶聚合物材料的系统和装置。 该系统包括（i）限定物品形成腔和通过门连接的外腔的模具，（ii）包括衬套的熔体输送机构，所述衬套具有位于靠近门入口的外腔中的远侧部分，以及 （iii）熔融材料源。 衬套的远端部分，外部空腔的内部部分和门的几何构型以及衬套的远端和浇口的入口的相对位置各自被选择为使得熔体材料可以从 源通过熔体输送机构和浇口进入制品形成腔。 熔体输送机构保持在高于聚合物材料的特征结晶熔融温度的温度。 模具温度保持远低于聚合物材料的最小特征玻璃化转变温度。 此外，选择元件的几何构型使得从完成的制品突出的痕迹具有最小长度，并且使得在连续循环之间的间隔期间，位于衬套的排出孔之间的小体积的熔体和 门的出口允许结晶。
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80.发明授权
公开(公告)号：US5389331A
公开(公告)日：1995-02-14
申请号：US101110
申请日：1993-08-03
申请人： Shinichi Uehara , Koichi Sato
发明人： Shinichi Uehara , Koichi Sato
CPC分类号： B29C45/1642 , B29C45/1603 , B29C45/27 , B29C45/2701 , B29C2045/2769
摘要： A method of injection molding multi-ply products includes the step of forming an insulating barrier layer from one of different plastic materials used to injection mold multi-ply products, between an injection cavity mold and each of hot-runner nozzles, prior to the injection mold. The insulating barrier layer is formed by pre-charging one of the plastic materials which is the best thermostability into a recess formed in the hot-runner nozzle at its surface contacted by the injection cavity mold, the recess communicating with the exit port of the hot-runner nozzle. The plastic material charged in the recess is cooled and solidified by the injection cavity mold. The insulating barrier layer formed by the solidified plastic material is less thermally deteriorated by heat from a hot-runner mold for a prolonged time period. The heat-insulating property of the insulating barrier layer can be assured during a continuous injection molding process over a week.
摘要翻译： 注塑成型多层产品的方法包括在注射之前在注塑腔模具和每个热流道喷嘴之间形成用于注塑多层产品的不同塑料材料之一的绝缘阻挡层的步骤 模子。 绝缘阻挡层通过将热塑性材料中最好的热塑性材料中的一种预先充入到在热流道喷嘴中形成的凹口中而形成，该凹槽在与注射腔模具相接触的表面处，与热流出口相通的凹部 - 喷嘴。 填充在凹部中的塑料材料被注射腔模具冷却并固化。 由固化的塑料材料形成的绝缘阻挡层由于热流道模具的热量的延长而使其热劣化。 绝缘阻挡层的绝热性能可以在连续注塑成型过程中保证一周。
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