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1. 发明授权

US07320765B2 Gas pin for thermocouple for gas assisted injection molding 失效
标题翻译：用于气体辅助注射成型的热电偶气针
公开(公告)号：US07320765B2
公开(公告)日：2008-01-22
申请号：US10709388
申请日：2004-04-30
申请人： Gregory A. Homann , James Hendry
发明人： Gregory A. Homann , James Hendry
IPC分类号： B29D22/00
CPC分类号： B29C45/1734 , B29C45/78 , B29C2945/7604 , B29C2945/76167 , B29C2945/76244 , B29C2945/76257 , B29C2945/76287 , B29C2945/76498 , B29C2945/76531 , B29C2945/76545 , B29C2945/76591 , B29C2945/76779 , B29D11/00413
摘要： A method and system for forming an injection molded plastic part. After the injection of plastic material has started, a volume of gas from a fixed volume reservoir is introduced into the plastic material at a low pressure forming a hollow cavity. The gas is introduced into the mold by a gas pin having a temperature sensing device, such as a thermocouple, positioned on it. The introduction of this volume of gas is initiated when the temperature of the plastic material in the mold has reached a predetermined value. After the mold is filled and packed with plastic, pressurized gas is introduced into the hollow cavity forming the completed plastic part.
摘要翻译：一种用于形成注模塑料部件的方法和系统。在注塑塑料材料开始之后，一定量的来自固定容积的储存器的气体以低压被引入到塑料材料中，形成中空腔。通过具有位于其上的温度感测装置（例如热电偶）的气体针将气体引入模具中。当模具中的塑料材料的温度达到预定值时，开始引入该体积的气体。在模具填充并填充塑料之后，将加压气体引入形成完成的塑料部件的中空腔中。

2. 发明申请

US20050133945A1 Gas injection moulding method and apparatus 失效
标题翻译：注气成型方法及装置
公开(公告)号：US20050133945A1
公开(公告)日：2005-06-23
申请号：US11055949
申请日：2005-02-10
申请人： Rui Magalhaes , Gordon Smith
发明人： Rui Magalhaes , Gordon Smith
IPC分类号： B29C45/17 , B29D22/00
CPC分类号： B29C45/1706 , B29C45/1704 , B29C45/1734 , B29C2045/1709 , B29C2045/1726 , B29C2045/1729
摘要： A gas injection moulding method comprising injecting a melt into a mould and injecting gas into the melt to form a gas cavity in the melt wherein the melt is cooled by use of injection gas cooled to below the external ambient air temperature and/or by a continuous flow of injection gas through the mould.
摘要翻译：一种气体注射成型方法，包括将熔体注射到模具中并将气体注入熔体中以在熔体中形成气体腔，其中通过使用冷却至低于外部环境空气温度的注入气体和/或通过连续的注入气体流过模具。

3. 发明申请

US20040071806A1 Self cleaning injection molding pin 审中-公开
标题翻译：自清注塑针
公开(公告)号：US20040071806A1
公开(公告)日：2004-04-15
申请号：US10269282
申请日：2002-10-11
发明人： Ronald Thomas
IPC分类号： B29C045/23
CPC分类号： B29C45/1734
摘要： A self cleaning pin for a fluid assisted injection molding apparatus that includes a pin body with a fluid passage and a shaft member. The shaft member is positioned in the pin, and is reciprocable between a retracted position and an extended position, wherein reciprocation of the pin drives intruding plastic from the end of the pin body. In its retracted position, a tip portion rests against a substantially mating seat, and provides continuous fluid communication between the fluid passage and a mold cavity. The pin also provides adjustable biasing means, the biasing means continuously biasing the pin toward its retracted position. A shaped recess is included in the end of the shaft member, and can be utilized to manually rotate the pin relative to a tensioning member threadedly received on the shaft member, thereby adjusting the biasing force.
摘要翻译：一种用于流体辅助注射成型装置的自清洁销，其包括具有流体通道的销体和轴构件。轴构件定位在销中，并且在缩回位置和延伸位置之间往复运动，其中销的往复运动驱动从销体的端部侵入塑料。在其缩回位置，尖端部分靠在基本上配合的座上，并且在流体通道和模腔之间提供连续的流体连通。该销还提供可调节的偏置装置，该偏置装置使销朝向其缩回位置持续地偏置。在轴构件的端部包括成形的凹部，并且可以用于相对于螺纹地容纳在轴构件上的张紧构件手动地旋转销，由此调节偏置力。

4. 发明授权

US5945061A Method of input for a plasticating machine through a jewel orifice 失效
标题翻译：通过宝石孔输入塑化机的方法
公开(公告)号：US5945061A
公开(公告)日：1999-08-31
申请号：US877139
申请日：1997-06-17
申请人： Desider G. Csongor , Donald N. Halgren
发明人： Desider G. Csongor , Donald N. Halgren
IPC分类号： A61M25/00 , B29C45/17 , B29C45/60 , B29C45/62 , B29C47/00 , B29C47/02 , B29C47/10 , B29C47/38 , B29C47/66 , B29C47/74 , B29C47/82 , B29C47/88 , B29C45/00
CPC分类号： B29C47/0004 , A61M25/0009 , A61M25/0014 , B29C45/1732 , B29C45/1734 , B29C45/1735 , B29C45/60 , B29C45/62 , B29C47/0023 , B29C47/023 , B29C47/1045 , B29C47/1063 , B29C47/38 , B29C47/6006 , B29C47/66 , B29C47/74 , B29C47/82 , B29C47/84 , B29C47/845 , B29C47/882 , B29C2045/1707 , B29C2045/1722 , B29C47/1027 , B29K2105/0005 , B29K2105/06 , B29K2105/12 , B29L2031/7542
摘要： The invention comprises a plasticating machine for the working and forcing of plastic material into a mold, said machine including an elongated housing having a first or proximal end and a second or distal end, an elongated screw shaft with a screw flight therearound, the screw shaft being rotatably supported in the elongated housing, for the working of plastic between the screw shaft and the elongated housing with at least one delivery conduit generally longitudinally arranged through the screw shaft, from a proximal end to a distal tip end thereof. The conduit may be arranged to be movable with respect to the screw shaft to permit delivery of a medium through the screw shaft to any plastic being driven from the machine. The medium may be any single or combination of components selected from the group comprising vapor, liquid, gas, powder or solid, to control the machine or treat any plastic being driven therefrom.
摘要翻译：本发明包括用于将塑料材料加工成模具的塑化机，所述机器包括具有第一或近端和第二或远端的细长壳体，其周围具有螺旋形飞行的细长螺杆轴，所述螺杆轴被可旋转地支撑在细长壳体中，用于在螺杆轴和细长壳体之间加工塑料，其中至少一个输送管道通常沿纵向布置通过螺杆轴，从近端到其远端尖端。导管可以布置成相对于螺杆轴可移动，以允许介质通过螺杆轴传送到从机器驱动的任何塑料。介质可以是选自蒸气，液体，气体，粉末或固体的组分的任何单一组合或组合，以控制机器或处理从其驱动的任何塑料。

5. 发明授权

US5785247A Gas injection nozzle for gas assisted injection molding 失效
标题翻译：用于气体辅助注射成型的气体喷嘴
公开(公告)号：US5785247A
公开(公告)日：1998-07-28
申请号：US498367
申请日：1995-07-05
申请人： Yung-Chih Chen , Wen-Liang Liu , Long-Cheng Cheng
发明人： Yung-Chih Chen , Wen-Liang Liu , Long-Cheng Cheng
IPC分类号： B29C45/17 , B29C45/23
CPC分类号： B29C45/1734 , B29C2045/1739
摘要： An improved gas injection nozzle for use in gas-assisted injection molding process is disclosed. The improved gas injection nozzle comprises: (a) a nozzle body, and a nozzle cap fixedly connected to the nozzle body; (b) a gas inlet provided in the nozzle body so as to allow gas to be injected into a mold cavity via a gas channel formed inside both the nozzle body and the nozzle cap; (c) a heating coil provided on the gas injection nozzle; and (d) at least one circumferential groove formed on the outer surface of the nozzle cap. The circumferential groove formed on the outer surface of the nozzle cap preferably has the shape of a spiral groove, with a depth between about 0.2 mm and about 0.5 mm and a length between about 50 mm and about 150 mm. The combination of the heating coil and the circumferential groove prevents the formation of micro cracks that are often formed in the interstices between the nozzle cap and the sprue bushing during the cooling stage of injection molding process. These micro cracks allow passageways to be developed for the inert gas to be leaked out and a fall-off of the gas pressure inside the mold cavity, resulting in sinks and/or warpages to be formed on the injection molded product. The prevention of gas leakage also eliminates the need for continuous gas and thus reduces the manufacturing cost.
摘要翻译：公开了一种用于气体辅助注射成型工艺的改进的气体注入喷嘴。改进的气体喷射喷嘴包括：（a）喷嘴体和固定地连接到喷嘴体的喷嘴盖; （b）设置在所述喷嘴体中的气体入口，以便通过形成在所述喷嘴体和所述喷嘴盖内部的气体通道将气体注入到模腔中; （c）设置在气体注入喷嘴上的加热线圈; 和（d）形成在喷嘴盖的外表面上的至少一个周向凹槽。形成在喷嘴盖的外表面上的圆周槽优选具有螺旋槽的形状，深度在约0.2mm至约0.5mm之间，长度在约50mm至约150mm之间。加热线圈和周向沟槽的组合防止了在注射成型过程的冷却阶段期间经常形成在喷嘴盖和浇道套管之间的间隙中的微裂纹。这些微裂纹允许通道被开发以使惰性气体泄漏出来并使模腔内的气体压力下降，导致在注模产品上形成沉陷和/或翘曲。防止气体泄漏也消除了对连续气体的需要，从而降低制造成本。

6. 再颁专利

USRE35705E Gas assisted injection molding apparatus utilizing sleeve and pin arrangement 失效
标题翻译：气体辅助注射成型设备利用套筒和针排列
公开(公告)号：USRE35705E
公开(公告)日：1997-12-30
申请号：US531430
申请日：1995-09-21
申请人： Jay F. Moldovanyi
发明人： Jay F. Moldovanyi
IPC分类号： B29C45/17 , B29C45/23
CPC分类号： B29C45/1734 , B29C45/1735 , B29C2045/1737
摘要： An apparatus for use in fluid assisted injection molding of plastic material so as to form an injection molded product includes a pair of mold members defining when closed the sealed cavity, a first opening provided in one of the mold members for allowing the injection of plastic material into the cavity and the second opening provided in one of the mold members, and spaced from the first opening, for allowing the injection of the fluid into the cavity. A sleeve extends through the second opening. The sleeve has a longitudinally extending bore with an open first end. Preferably, the sleeve is rigidly secured in relation to the one of the mold members through which it extends. A pin extends through the sleeve with the pin having a first end, located adjacent the sleeve first end, and a second end. Preferably the pin in rigidly secured in relation to the sleeve. A fluid flow passage is defined between the pin and the sleeve. In another embodiment, the fluid flow passage is defined between a tube and a pin. The tube is secured at one end to a bushing body. The busing is, in turn, positioned between a nozzle of an injection molding machine and a sprue of a mold cavity. In yet another embodiment, the pin is allowed to reciprocate in relation to the sleeve so as to selectively open and close a fluid flow passage defined between the pin and the sleeve.
摘要翻译：一种用于塑料材料的流体辅助注射成型以形成注射成型产品的装置包括一对模具构件，该模具构件在封闭密封空腔时限定一个模具构件，设置在一个模具构件中的第一开口，用于允许注塑塑料材料进入设置在一个模具构件中的空腔和第二开口，并且与第一开口间隔开，以允许将流体注入空腔。套筒延伸穿过第二开口。套筒具有纵向延伸的孔，开口的第一端。优选地，套筒相对于其延伸的模具构件中的一个被刚性地固定。销延伸穿过套筒，销具有位于套筒第一端附近的第一端和第二端。优选地，销相对于套筒刚性地固定。在销和套筒之间限定流体流动通道。在另一个实施例中，流体流动通道限定在管和销之间。管一端固定在衬套主体上。另一方面，排气口位于注射成型机的喷嘴和模腔的浇口之间。在另一个实施例中，允许销相对于套筒往复运动，以便选择性地打开和关闭在销和套筒之间限定的流体流动通道。

7. 发明授权

US5458846A Method of injection molding 失效
标题翻译：注塑成型方法
公开(公告)号：US5458846A
公开(公告)日：1995-10-17
申请号：US260609
申请日：1994-06-15
申请人： Robert E. Carroll
发明人： Robert E. Carroll
IPC分类号： B29C45/17 , B29C45/43 , B29C45/00 , B29D22/00
CPC分类号： B29C45/1736 , B29C45/1734 , B29C45/174 , B29C45/43
摘要： An injection mold apparatus has a core and cavity halves. One or more gas poppet valves are affixed in the injection mold either in the movable and/or in the stationary halves of the mold. The poppet valves (or poppets) are located to open into a mold portion formed in the cavity between the movable portion of the injection mold and the fixed mold portion when the mold portions are closed. At least one gas line is connected to the poppets and to a gas pressure source and is adapted to open the poppets to the passage of nitrogen or other gas into the mold following the injection of molten plastic into the closed mold halves. Porous metal covers may be used to cover the opening in the mold either the movable and/or stationary halves of the injection mold in lieu of the gas poppet valves, and the gas pressure through the porous metal cover can be used to carry out the molding operation. An injection molding method is also taught using the injection of nitrogen gas into the mold immediately folowing the injection of the liquid plastic.
摘要翻译：注射模具装置具有芯部和腔体两半。一个或多个气体提升阀在模具的可移动和/或固定半部中固定在注射模具中。当模具部分关闭时，提升阀（或弹簧）被定位成打开形成在注射模具的可移动部分和固定模具部分之间的空腔中的模具部分。至少一个气体管线连接到气泡和气体压力源，并且适于在将熔融塑料注射到封闭的半模中之后将氮气或其它气体的通道打开到模具中。多孔金属盖可以用于覆盖模具中的开口，即注射模具的可移动和/或固定半部分代替气体提升阀，并且可以使用通过多孔金属盖的气体压力来进行模制操作。还教导了注射成型方法，其中使用氮气注入模具中，立即注射液体塑料。

8. 发明授权

US5273707A Method of injection molding 失效
标题翻译：注塑成型方法
公开(公告)号：US5273707A
公开(公告)日：1993-12-28
申请号：US798863
申请日：1991-11-22
申请人： Robert E. Carroll
发明人： Robert E. Carroll
IPC分类号： B29C45/17 , B29C45/43 , B29C45/26 , B29D22/00
CPC分类号： B29C45/174 , B29C45/1734 , B29C45/1736 , B29C45/43
摘要： An injection mold apparatus has a core and cavity halves. One or more gas poppet valves are affixed in the injection mold either in the movable and/or in the stationary halves of the mold. The poppet valves (or poppets) are located to open into a mold portion formed in the cavity between the movable portion of the injection mold and the fixed mold portion when the mold portions are closed. At least one gas line is connected to the poppets and to a gas pressure source and is adapted to open the poppets to the passage of nitrogen or other gas into the mold following the injection of molten plastic into the closed mold halves. Porous metal covers may be used to cover the opening in the mold either the movable and/or stationary halves of the injection mold in lieu of the gas poppet valves, and the gas pressure through the porous metal cover can be used to carry out the molding operation. An injection molding method is also taught using the injection of nitrogen gas into the mold immediately following the injection of the liquid plastic.
摘要翻译：注射模具装置具有芯部和腔体两半。一个或多个气体提升阀在模具的可移动和/或固定半部中固定在注射模具中。当模具部分关闭时，提升阀（或弹簧）被定位成打开形成在注射模具的可移动部分和固定模具部分之间的空腔中的模具部分。至少一个气体管线连接到气泡和气体压力源，并且适于在将熔融塑料注射到封闭的半模中之后将氮气或其它气体的通道打开到模具中。多孔金属盖可以用于覆盖模具中的开口，即注射模具的可移动和/或固定半部分代替气体提升阀，并且可以使用通过多孔金属盖的气体压力来进行模制操作。还使用在注射液体塑料之后立即将氮气注入模具中来教导注射成型方法。

9. 发明授权

US5222514A Method of operating a gas sealing valve and valve equipped plastic processing installation 失效
标题翻译：操作气体密封阀和配有塑料加工装置的阀的方法
公开(公告)号：US5222514A
公开(公告)日：1993-06-29
申请号：US773811
申请日：1991-10-09
申请人： Bernd Klotz , Kurt Herzog
发明人： Bernd Klotz , Kurt Herzog
IPC分类号： B29C45/17
CPC分类号： B29C45/1734 , Y10T137/0318 , Y10T137/7771 , Y10T137/86413
摘要： A method is disclosed for operating a valve needle for plastic processing plants. The needle valve may be controlled by a control valve, which in turn is controlled by a working gas volume in order to prevent formation of internal waviness in injection molded articles even under very high gas pressures and to assure high flexibility in production without refitting delays. During plastic mass injection the valve needle seals tightly. During gas return the valve needle remains open until the gas bubble in the mold cavity is completely emptied.
摘要翻译：公开了一种用于操作塑料加工设备的阀针的方法。针阀可以由控制阀控制，控制阀又由工作气体体积控制，以便即使在非常高的气体压力下也防止在注射成型制品中形成内部波纹，并且确保高生产灵活性而不改装延迟。在塑料质量注入期间，阀针密封。在气体返回期间，阀针保持打开，直到模腔中的气泡完全清空。

10. 发明授权

US5186884A Method of injection molding with pressurized fluid assist 失效
标题翻译：注射成型加压流体助剂的方法
公开(公告)号：US5186884A
公开(公告)日：1993-02-16
申请号：US711288
申请日：1991-06-06
申请人： James W. Hendry
发明人： James W. Hendry
IPC分类号： B29C45/17
CPC分类号： B29C45/1734 , B29C45/1704 , B29C2045/1729
摘要： A method and system for the injection molding of plastic articles of enhanced surface quality using pressurized fluid introduced into the article defining cavity or runner of a mold by a sealed pin or valve having an orifice therein and movable between open and closed positions to inject gas into a subgate of the mold. In one embodiment, the fluid is a gas which is injected through the subgate between a pair of seals. The seals and the subgate prevent gas leakage around the periphery of the pin. The fluid is prevented from contaminating the molten resin in a nozzle from which it was injected to eliminate splay by either using a shut-off valve with the nozzle or by introducing the pressurized fluid into the molten resin parallel to its direction of flow. The method involves the initial step of injecting molten resin at a nominal injection pressure from the nozzle of an injection molding machine through a resin injection aperture at an upstream position in a mold. The resin travels along a resin flow path in the mold to the cavity defining the shape of the molded article at a downstream position. During or after resin injection, the pressurized charge of fluid enters the flow path at the orifice and passes into the mold cavity to distribute the molten plastic within the mold cavity. The fluid is contained within the mold cavity under pressure until the article has set up, and is thereafter vented.
摘要翻译：一种用于使用加压流体注入模塑塑料制品的方法和系统，所述加压流体通过密封的销或阀门引入到形成模具的腔或流道的制品中，所述密封销或阀在其中具有孔口并且可在打开和关闭位置之间移动以将气体注入模具的子门。在一个实施例中，流体是在一对密封件之间通过子阀门注入的气体。密封件和底盖可防止引脚周围的气体泄漏。防止流体污染注射喷嘴中的熔融树脂，以通过使用具有喷嘴的截止阀或通过将加压流体引导到平行于其流动方向的熔融树脂中来消除喷射。该方法包括以注射成型机的喷嘴通过模具上游位置处的树脂注射孔以标称注射压力注入熔融树脂的初始步骤。树脂沿着模具中的树脂流动路径行进到在下游位置限定模制品的形状的空腔。在树脂注射期间或之后，流体的加压装料进入孔口处的流动路径并且进入模腔以将熔融塑料分布在模腔内。流体在压力下容纳在模腔内，直到制品已经安装，然后排出。

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