Plastic expulsion process
    13.
    发明申请

    公开(公告)号:US20040135291A1

    公开(公告)日:2004-07-15

    申请号:US10685230

    申请日:2003-10-14

    IPC分类号: B29B007/00 B29C045/00

    摘要: A system and process for gas assisted plastic injection molding. The plastic material is injected into the mold cavity and the molding pressure is held for a period of time. Thereafter, gas is injected into the plastic material and the pressure is again held for a period of time. Thereafter, valve members are opened allowing plastic to be expelled into one or more secondary cavities, or to be expelled back into the machine barrel.

    Plastic expulsion process
    14.
    发明申请
    Plastic expulsion process 失效
    塑料驱逐过程

    公开(公告)号:US20030011110A1

    公开(公告)日:2003-01-16

    申请号:US09902354

    申请日:2001-07-10

    IPC分类号: B29D022/00

    摘要: A system and process for gas assisted plastic injection molding. The plastic material is injected into the mold cavity and the molding pressure is held for a period of time. Thereafter, gas is injected into the plastic material and the pressure is again held for a period of time. Thereafter, valve members are opened allowing plastic to be expelled into one or more secondary cavities, or to be expelled back into the machine barrel.

    摘要翻译: 气体辅助注塑成型系统和工艺。 将塑料材料注入模腔中,并将成型压力保持一段时间。 此后,将气体注入到塑料材料中,再次将压力保持一段时间。 此后,打开阀构件,允许塑料被排出到一个或多个二次空腔中,或者被排出回到机筒中。

    Method and apparatus for producing hollow plastic objects with
pressurized gas injection after overflow cut-off
    15.
    发明授权
    Method and apparatus for producing hollow plastic objects with pressurized gas injection after overflow cut-off 失效
    溢流截止后用加压气体注入生产中空塑料物件的方法和装置

    公开(公告)号:US5762861A

    公开(公告)日:1998-06-09

    申请号:US744877

    申请日:1996-11-08

    申请人: Michael Gosdin

    发明人: Michael Gosdin

    IPC分类号: B29C45/17 B29C45/73

    摘要: A method and an apparatus for producing plastic objects with hollow spaces is disclosed. The method comprises the following steps: establishing a fluid connection (9) between the main cavity (2) of a mold (1) and an overflow cavity (8) and injecting a sufficient amount of plastic melt into the cavity (2) of the mold (1) along a melt flow path, which extends from a plasticizing unit (4, 5) through a plastic injection nozzle (3) into the mold (1), such that plastic melt passes from the main cavity (2) into the overflow cavity (8). The fluidic connection (9) between the main cavity (2) and the overflow cavity (8) is then broken-off prior to the introduction of a pressurized fluid, especially a pressurized gas, into the melt in the cavity (2) by means of at least one fluid injection nozzle (7), so that the melt situated in the cavity (2) is distributed in the cavity (2) while forming a hollow space, and is pressed against the cavity walls of the mold (1). The thus formed molded part is then allowed to cool down to a temperature below the melting point of the plastic melt, the cavity pressure is relieved, and the molded part is removed from the mold. The method advantageously achieves the result that the produced molded parts do not have any gas exit openings and the waste in the overflow main cavity (8) remains minimal.

    摘要翻译: 公开了一种用于生产具有中空空间的塑料物体的方法和装置。 该方法包括以下步骤:在模具(1)的主腔(2)和溢流腔(8)之间建立流体连接(9),并将足够量的塑料熔体注入到模腔 模具(1)沿着从塑化单元(4,5)通过塑料注射喷嘴(3)延伸到模具(1)中的熔体流动路径,使得塑料熔体从主空腔(2)进入 溢流腔(8)。 在主空腔(2)和溢流腔(8)之间的流体连接(9)然后在将加压流体,特别是加压气体引入空腔(2)内的熔体中之前被破坏 至少一个流体注射喷嘴(7),使得位于空腔(2)中的熔体在形成中空空间的同时分布在空腔(2)中,并被压靠在模具(1)的空腔壁上。 然后将如此形成的模制部件冷却至低于塑料熔体的熔点的温度,释放腔体压力,并将模制部件从模具中取出。 该方法有利地实现了所生产的模制部件不具有任何气体出口的结果,并且溢流主腔(8)中的废物保持最小。

    Device and method for the injection molding of a molded part comprising at least one void
    16.
    发明授权
    Device and method for the injection molding of a molded part comprising at least one void 有权
    用于注射模制包含至少一个空隙的模制部件的装置和方法

    公开(公告)号:US08246871B2

    公开(公告)日:2012-08-21

    申请号:US13087539

    申请日:2011-04-15

    申请人: Helmut Eckardt

    发明人: Helmut Eckardt

    IPC分类号: B29C45/00

    摘要: The invention relates to a device for the injection moulding of a moulded part (2) comprising a void (1), wherein a projectile (10) can be positioned at a fluid injection nozzle (8) in the region of a fluid aperture (9), which projectile (10) can be caused to flow in the direction of the longitudinal axis (L). To allow the production of moulded parts with enclosed voids in a better way the invention is characterized in that the fluid injection nozzle (8) comprises a section (11) entering into a cavity (5) of a mould, which section (11) is free from any undercut in a direction (E) of insertion of the fluid injection nozzle (8) into the cavity (5), wherein an angle (α) is arranged between a longitudinal axis (L) and the direction (E) of insertion.

    摘要翻译: 本发明涉及一种用于注塑成型包括空隙(1)的模制件(2)的装置,其中抛射体(10)可位于流体孔(9)的区域中的流体注射喷嘴(8)处, ),可以使弹丸(10)在纵向轴线(L)的方向上流动。 为了更好地生产具有封闭空隙的模制零件,本发明的特征在于流体喷射喷嘴(8)包括进入模具的空腔(5)的部分(11),该部分(11)是 在流体注入喷嘴(8)插入空腔(5)的方向(E)上没有任何底切,其中在纵向轴线(L)和插入方向(E)之间布置有角度(α) 。

    Method for injection molding of hollow articles of plastic material
    17.
    发明授权
    Method for injection molding of hollow articles of plastic material 有权
    中空塑料材料注射成型方法

    公开(公告)号:US07998395B2

    公开(公告)日:2011-08-16

    申请号:US12513580

    申请日:2007-12-27

    申请人: Elmar Fries

    发明人: Elmar Fries

    IPC分类号: B29C45/00

    摘要: In an injection molding method to manufacture hollow plastic parts, at least one plastic part's hollow is shaped by evacuating an internal portion of the flowable material of an injection mold's cavity using a pressurized gas, and a gate of the mold and thereupon the molded article's aperture so made will be sealed off. After the flowable material has been moved from a blind duct into the gate and partly forced back into the hollow, the molded article will be ejected from the injection mold.

    摘要翻译: 在用于制造中空塑料部件的注射成型方法中,至少一个塑料部分的中空通过使用加压气体抽空注射模腔的可流动材料的内部而形成,并且模具的浇口和随后的模制品的孔 所以做的将被封锁。 在可流动材料已经从盲管移动到浇口中并且部分地被迫回到中空部中之后,模制品将从注塑模具中排出。

    METHOD FOR INJECTION MOLDING OF HOLLOW ARTICLES OF PLASTIC MATERIAL
    18.
    发明申请
    METHOD FOR INJECTION MOLDING OF HOLLOW ARTICLES OF PLASTIC MATERIAL 有权
    塑料材料中空铸件注塑成型方法

    公开(公告)号:US20100072680A1

    公开(公告)日:2010-03-25

    申请号:US12513580

    申请日:2007-12-27

    申请人: Elmar Fries

    发明人: Elmar Fries

    IPC分类号: B29C49/06

    摘要: An injection molding method to manufacture hollow plastic parts, whereby at least one plastic part's hollow is shaped by evacuating an internal portion of the flowable material of an injection mold's cavity (12) using a pressurized gas and a gate of said mold (10) and thereupon the molded article's aperture so made shall be sealed off, characterized in that, following said flowable material's being removed from a blind duct (24) into a gate branched to it and after being partly forced back into said hollow, said molded article shall be elected from the injection mold (10).

    摘要翻译: 一种用于制造中空塑料部件的注射成型方法,由此通过使用加压气体和所述模具(10)的浇口排空注射模具腔(12)的可流动材料的内部而使至少一个塑料部件的中空成形,以及 因此,如此制成的模制品的孔应被密封,其特征在于,随着所述可流动材料从盲管(24)移除到分支到其中的门,并且在部分被迫回到所述中空之后,所述模制品应为 从注射模具(10)中选出。

    Method and apparatus for injection molding parts which have at least one cavity
    20.
    发明授权
    Method and apparatus for injection molding parts which have at least one cavity 有权
    具有至少一个空腔的注塑部件的方法和装置

    公开(公告)号:US06713014B2

    公开(公告)日:2004-03-30

    申请号:US09790212

    申请日:2001-02-21

    申请人: Helmut Eckardt

    发明人: Helmut Eckardt

    IPC分类号: B29D2200

    摘要: The invention relates to a method and an apparatus for injection molding thermoplastic molded parts, having at least one cavity. The method comprises the following steps: a) injecting thermoplastic melt from an injection unit along a melt flow path into the cavity of an injection molding tool; b) injecting a fluid into the still liquid plastic material, so that the plastic material is pressed against the walls of the cavity; c) allowing the plastic material to cool until it forms the self-supporting molded part; and d) removing the molded part from the cavity of the injection molding tool.

    摘要翻译: 本发明涉及一种注射成型热塑性成型件的方法和装置,其具有至少一个空腔。 该方法包括以下步骤:a)将来自注射单元的热塑性熔体沿着熔体流动路径注入到注射成型工具的空腔中; b)将液体注入静止液体塑料材料中,使得塑料材料被压靠在空腔的壁上; c)允许塑料材料冷却直至形成自支撑模制件; 以及d)从注射成型工具的空腔中取出模制部件。