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497 条记录 (耗时 0.018 秒)

    Injection moulding
    82.
    发明授权
    Injection moulding 失效
    注塑成型

    公开(公告)号：US4264295A

    公开(公告)日：1981-04-28

    申请号：US69340

    申请日：1979-08-23

    申请人： George A. Hingley

    发明人： George A. Hingley

    IPC分类号： B29C45/26 ,  B29C45/36 ,  B29F1/00 ,  B29C1/00

    CPC分类号： B29C45/36 ,  B29C45/2624 ,  B29C2045/0051

    摘要： In the moulding of plastics material using a female mould cavity into which a number of cores are inserted, in order to prevent deflection of the cores under the action of the injected plastics material, complementarily shaped formations are provided on the free ends of the cores and the mould wall, the formations being so disposed and arranged as to produce restoring forces tending to reduce deflection of the cores and to prevent transmission of deflection between adjacent cores. Various examples of suitable formations are disclosed. The invention is illustrated with reference to its application to the manufacture of battery boxes.

    摘要翻译： 在使用插入有多个芯的阴模腔的塑料材料的模制中，为了防止在注射的塑料材料的作用下芯的偏转，在芯的自由端上提供互补形状的结构， 模具壁，构造被布置和布置成产生趋向于减小芯的偏转并且防止相邻芯之间的偏转传输的恢复力。 公开了合适地层的各种实例。 参照其在电池盒的制造中的应用来说明本发明。

    Apparatus and process for molding of hollow articles
    83.
    发明授权
    Apparatus and process for molding of hollow articles 失效
    中空制品成型的装置和方法

    公开(公告)号：US4149695A

    公开(公告)日：1979-04-17

    申请号：US801531

    申请日：1977-05-31

    申请人： James R. Quick ,  William A. Wittosch, Jr.

    发明人： James R. Quick ,  William A. Wittosch, Jr.

    IPC分类号： A61M25/00 ,  B28B1/24 ,  B28B7/16 ,  B29C33/00 ,  B29C33/30 ,  B29C45/36 ,  B29C1/06

    CPC分类号： B29C45/36 ,  A61M25/0009 ,  B28B1/24 ,  B28B7/166 ,  B29C33/0033 ,  B29C33/304 ,  B29C45/34 ,  B29K2083/005 ,  B29L2031/7542

    摘要： Disclosed is an apparatus and process for the molding of hollow articles such as full length Foley catheters. The apparatus preferably comprises a mold with two lumen forming wires longitudinally disposed therein. A set of two receiving wires are spaced distally from the distal ends of the lumen forming wires and are longitudinally aligned therewith. A first follower is slidably disposed about the lumen forming wires in close abutment with the wires and inside wall of the mold. The first follower is preferably disposed toward the proximal end of the mold and preferably at least two other followers are provided spaced distally of the first follower. One of the other followers preferably bridges the space between the lumen forming wires and receiving wires. Sets of gates are preferably provided along the length of the mold in fluid communication with a source of molding material. In practice, molding material is injected into the molding channel at the proximal end of the mold and flows longitudinally toward the distal end of the mold while pushing the first follower along the wire ahead of it. As the follower proceeds toward the distal end of the mold, it engages and pushes the remaining followers toward the distal end of the mold. At the beginning of the molding process, each set of gates has a follower that is transversely aligned with it so as to seal the set of gates and prevent the flow of molding material through the set of gates and into the mold. In this fashion, molding material is not introduced through a set of gates and into the mold until all followers are distally located from the set of gates.

    摘要翻译： 公开了一种用于模制诸如全长Foley导管的中空制品的装置和方法。 该装置优选地包括具有纵向设置在其中的两个内腔形成丝的模具。 一组两个接收线从内腔形成线的远端向远侧间隔开并与其纵向对准。 第一跟随器可滑动地布置在管腔周围，与金属丝和模具的内壁紧密邻接。 优选地，第一随动件朝向模具的近端设置，并且优选地，至少两个其它从动件被设置成与第一跟随件向远侧隔开。 其他追随者之一优选地桥接管腔形成线和接收线之间的空间。 浇口组优选地沿模具的长度设置成与模制材料源流体连通。 实际上，模塑材料在模具的近端被注入到模制通道中，并且沿着模具前端的线推动第一跟随器，沿着模具的远端纵向流动。 当跟随者朝着模具的远端行进时，其接合并将剩余的追随者推向模具的远端。 在模制过程开始时，每组门具有与其横向对准的跟随器，以便密封该组门，并防止模制材料流过该组门并进入模具。 以这种方式，成型材料不通过一组浇口引入模具中，直到所有追随者远离该组门。

    Injection molding nozzle seal
    84.
    发明授权
    Injection molding nozzle seal 失效
    注塑喷嘴密封

    公开(公告)号：US4043740A

    公开(公告)日：1977-08-23

    申请号：US695659

    申请日：1976-06-14

    申请人： Jobst Ulrich Gellert

    发明人： Jobst Ulrich Gellert

    IPC分类号： B29C37/00 ,  B29C41/00 ,  B29C45/00 ,  B29C45/23 ,  B29C45/27 ,  B29C45/28 ,  B29C45/36 ,  B29C45/77 ,  B29F1/03

    CPC分类号： B29C45/2806 ,  B29C45/278 ,  B29C2045/2761 ,  B29C2045/2889 ,  Y10S425/227

    摘要： This invention relates to a nozzle seal to be used in multi-cavity valve-gated injection molding. A heater cast with a lower nozzle portion is spaced from a cavity plate by an insulating air space and the valve pin reciprocates vertically in the heater cast bore into a gate in the cavity plate. A hollow generally cylindrical nozzle seal is provided across the air space between the lower tip of the nozzle portion and the cavity plate around the gate. The cylindrical seal provides additional heat transfer from the heater to the area of the gate to facilitate operation of the valve pin, particularly seating of the valve pin in the gate, during molding of certain plastic materials with high temperature characteristics. The nozzle seal is formed of a high yield strength titanium alloy and structured to avoid leakage or breakage in this critical area due to high injection pressure and both vertical and lateral relative movement between the nozzle and the cavity plate due to thermal expansion and contraction. In a second embodiment, a lower portion of the seal is tapered to improve sealing at high pressures and heat transfer to the immediate gate area and to avoid a "dead spot" for the accumulation of molten plastic material adjacent the gate.

    摘要翻译： 本发明涉及一种用于多腔阀门浇注注塑成型的喷嘴密封件。 具有下喷嘴部分的加热器通过绝缘空气空间与腔板间隔开，并且阀销在加热器铸造孔中垂直地往复运动到腔板中的浇口中。 在喷嘴部分的下端部和围绕浇口的腔板之间的空气空间内设置有中空的大致圆柱形的喷嘴密封。 圆柱形密封件在模制具有高温特性的某些塑料材料时，从加热器到门的区域提供额外的热传递，以便于阀销的操作，特别是阀门在门中的安置。 喷嘴密封由高屈服强度的钛合金形成，并且被构造成在这个关键区域由于高的注射压力和由于热膨胀和收缩在喷嘴和腔板之间的垂直和横向的相对运动而避免泄漏或断裂。 在第二实施例中，密封件的下部是锥形的，以改善在高压下的密封和向近门区域的传热，并且避免用于邻近浇口的熔融塑料材料积聚的“死点”。

    Molding apparatus with temperature compensating core rods
    85.
    发明授权
    Molding apparatus with temperature compensating core rods 失效
    具有温度补偿芯棒的成型设备

    公开(公告)号：US3893793A

    公开(公告)日：1975-07-08

    申请号：US34412873

    申请日：1973-03-23

    申请人： FARRELL PATENT CO

    发明人： FARRELL JOHN J

    IPC分类号： B29C45/36 ,  B29C49/06 ,  B29D23/03

    CPC分类号： B29C49/06 ,  B29C45/36

    摘要： This molding apparatus has a head which carries a plurality of core rods extending from the face of the head, and it has each core rod carried by a floating support that permits movement of the core rods closer together or further apart. Core rods are held in bushings which have flanges that maintain the core rods parallel to one another. The movement permits the spacing of the core rods to change as necessary to compensate for changes in the spacing of the mold cavities as temperature differences between the mold and the head that carries the core rods causes the core rods and mold cavities to have different center line spacings.

    摘要翻译： 该成型装置具有头部，该头部承载从头部的表面延伸的多个芯棒，并且其具有由浮动支撑件承载的每个芯棒，其允许芯棒的移动更靠近在一起或进一步分开。 芯棒保持在具有将芯棒彼此平行的凸缘的衬套中。 该移动允许芯棒的间距根据需要改变以补偿模具腔的间隔的变化，因为模具和承载芯棒的头部之间的温度差导致芯棒和模腔具有不同的中心线 间距。

    Molding of all plastic shotshell cases
    89.
    发明授权
    Molding of all plastic shotshell cases 失效
    所有塑料鞋底模具

    公开(公告)号：US3752434A

    公开(公告)日：1973-08-14

    申请号：US3752434D

    申请日：1971-09-09

    申请人： HERTER INC S

    发明人： HERTER G

    IPC分类号： B29C45/36 ,  B22C9/08

    CPC分类号： B29C45/36

    摘要： A mold and molding method for all plastic shotshell cases to inject the plastic into the mold cavity from a sprue at the center of the mold cavity forming the closed end of the shotshell case and to simultaneously fill all portions of the mold cavity without necessitating forming a weld line, and maintaining the entire periphery of the shotshell case uniform in thickness by holding the core within the mold cavity concentrically of the movable mold parts with a rigid core pin on the end of the core and seated in the sprue, the core pin having grooves for carrying molten plastic into the cavity while the pin is seated in the sprue for holding the core concentric of the mold cavity.

    摘要翻译： 一种用于所有塑料外壳的模具和模制方法，用于将塑料从模腔中心处的浇道浇注到模具腔中，形成壳壳的封闭端，并同时填充模腔的所有部分，而不必形成 焊接线，并且通过在芯的端部上具有刚性芯销并将其固定在浇口中，通过将芯体在可移动模具部件的同心的模腔内保持在模腔内而保持壳体的整个外围均匀，芯销具有 用于将熔融塑料携带到空腔中的凹槽，同时销位于浇口中，用于保持模具腔同心的芯。