公开(公告)号：US06824377B2

公开(公告)日：2004-11-30

申请号：US10360399

申请日：2003-02-07

申请人： Brian R. Lefebure

发明人： Brian R. Lefebure

IPC分类号： B29C4954

CPC分类号： B29C49/56 ,  B29C49/06 ,  B29C49/541 ,  B29L2031/7158 ,  Y10S425/005 ,  Y10S425/058

摘要： The upper and lower halves of a blow mold define a blow mold cavity when the halves are closed together. A bottom plug which serves to form a dome in the bottom of the blown bottle is shifted into and out of a cooperating relationship with the two mold halves by cam mechanism that operates in response to raising and lowering of the upper die set upon which the upper mold half is mounted. The actuating mechanism comprises a pair of mutually opposed cam rods having a follower trapped therebetween that is in turn coupled with the bottom plug so that as the cam rods are shifted with the upper die set, the follower reacts to cam surfaces on the rods to impart a corresponding extension and retraction motion to the bottom plug. To handle multiple, side-by-side blow mold cavities, the bottom plugs for such cavities are ganged together on a common support bar that is in turn provided with operating shanks, each provided with a cam follower operated by a cam assembly. In an alternative embodiment, the bottom plug is split into two upper and lower halves, with each half being provided with its own actuating mechanism. Sets of upper plug halves can be ganged together for actuation in unison, as can sets of lower plug halves.

摘要翻译： 吹塑模具的上半部和下半部分限定吹塑模腔，当半部封闭在一起时。 用于在吹塑瓶的底部形成圆顶的底塞通过凸轮机构与两个半模的配合关系移动，该凸轮机构响应于上模具的升高和降低而工作， 半模安装。 致动机构包括一对相互相对的凸轮杆，其具有被夹在其间的从动件，该随动件又与底部塞子联接，使得当凸轮杆与上模具组一起移动时，从动件与杆上的凸轮表面相互作用以赋予 相应的延伸和收缩运动到底部插头。 为了处理多个并排的吹塑模腔，用于这种空腔的底部塞子一起组合在共同的支撑杆上，共同的支撑杆又设置有操作柄，每个操作杆设置有由凸轮组件操作的凸轮从动件。 在替代实施例中，底塞被分成两个上半部和下半部，每个半部设置有自己的致动机构。 一组上半部分可以组合在一起以一致地致动，如同一套下半部分一样。

公开(公告)号：US20080220114A1

公开(公告)日：2008-09-11

申请号：US11682133

申请日：2007-03-05

申请人： Brian R. Lefebure ,  David A. Brunson

发明人： Brian R. Lefebure ,  David A. Brunson

IPC分类号： B29C49/64

CPC分类号： B29C49/6445 ,  B29B11/08 ,  B29B11/14 ,  B29B13/025 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/14106 ,  B29B2911/14133 ,  B29B2911/14326 ,  B29B2911/14333 ,  B29B2911/14366 ,  B29B2911/144 ,  B29B2911/1444 ,  B29C49/06 ,  B29C49/6409 ,  B29C2035/0822 ,  B29K2067/00

摘要： The conditioning station of an injection stretch blow mold machine is provided with a heater ring for each hot, soft preform presented to the station. The heater ring emits infrared light waves that are confined to the transition region of the preform between the neck and main body portions to pin-point the addition of heat to the transition region.

摘要翻译： 注射拉伸吹塑机的调节台为每个提供给车站的热，软预制件设置有加热器环。 加热器环发射限制在颈部和主体部分之间的预成型件的过渡区域的红外光波，以便将热量加热到过渡区域。

公开(公告)号：US07121819B2

公开(公告)日：2006-10-17

申请号：US11018504

申请日：2004-12-21

申请人： Jincheng Chen ,  Brian R. Lefebure

发明人： Jincheng Chen ,  Brian R. Lefebure

IPC分类号： B29C45/78

CPC分类号： B29C45/2738

摘要： Auxiliary end heating devices on an elongated, heated hot melt distribution manifold body assist in maintaining uniform temperatures throughout all portions and passageways of the manifold body. The heating devices preferably take the form of thick film electrical resistive heaters of plate-like construction. The end heaters are on their own control circuit separate and apart from the circuit for other heaters for remaining portions of the manifold body. Special isolating slots are formed in lower corners of the manifold body between supporting standoffs and overhead melt passageways in the manifold body.

摘要翻译： 细长加热的热熔体分配歧管主体上的辅助端部加热装置有助于在歧管主体的所有部分和通道上保持均匀的温度。 加热装置优选采用板状结构的厚膜电阻加热器的形式。 端部加热器在它们自己的控制电路上分开并且与用于其它加热器的电路分开，用于歧管体的剩余部分。 特殊的隔离槽形成在歧管主体的下方拐角处，在歧管主体中的支撑间隔和顶部熔体通道之间。

公开(公告)号：US06902119B2

公开(公告)日：2005-06-07

申请号：US10336168

申请日：2003-01-03

申请人： Jincheng Chen ,  Brian R. Lefebure

发明人： Jincheng Chen ,  Brian R. Lefebure

IPC分类号： B29C45/27 ,  B05C1/00

CPC分类号： B29C45/2738

摘要： Auxiliary end heating devices on an elongated, heated hot melt distribution manifold body assist in maintaining uniform temperatures throughout all portions and passageways of the manifold body. The heating devices preferably take the form of thick film electrical resistive heaters of plate-like construction. The end heaters are on their own control circuit separate and apart from the circuit for other heaters for remaining portions of the manifold body. Special isolating slots are formed in lower corners of the manifold body between supporting standoffs and overhead melt passageways in the manifold body.

摘要翻译： 细长加热的热熔体分配歧管主体上的辅助端部加热装置有助于在歧管主体的所有部分和通道上保持均匀的温度。 加热装置优选采用板状结构的厚膜电阻加热器的形式。 端部加热器在它们自己的控制电路上分开并且与用于其它加热器的电路分开，用于歧管体的剩余部分。 特殊的隔离槽形成在歧管主体的下方拐角处，在歧管主体中的支撑间隔和顶部熔体通道之间。

公开(公告)号：US06726467B1

公开(公告)日：2004-04-27

申请号：US10272974

申请日：2002-10-16

申请人： Brian R. Lefebure

发明人： Brian R. Lefebure

IPC分类号： B29C4520

CPC分类号： B29C45/278 ,  B29C45/2725 ,  B29C2045/2729 ,  B29C2045/2766 ,  B29C2045/2791

摘要： Multi-cavity injection molding apparatus includes a plurality of injection nozzles, each of which has a two-piece tip assembly in the nature of a replaceable tip and a retainer that detachably secures the tip to the nozzle body. The retainers are constructed from material having a lower coefficient of thermal conductivity than the tips so that the retainers also serve to insulate the tips from the relatively cold, surrounding heat sink presented by the mold. Although each retainer prevents its tip from being unintentionally axially released from the nozzle body, the retainer engages the tip at only two axially spaced locations along its length so as to present an insulating air gap in surrounding relationship to much of the tip. The otherwise exposed end of the air gap is sealed off when the nozzle is hot by virtue of a sealing collar on the retainer that progressively tightens against the cooperating, beveled surface of the tip as the tip heats up. Each nozzle is mounted on the manifold block in a ball and socket relationship so that the nozzles can swivel and self-align as the manifold block and nozzles heat up from room temperature to operating temperature at the commencement of the injection process.

摘要翻译： 多空腔注射成型装置包括多个注射喷嘴，每个注射喷嘴具有可更换尖端的两件式末端组件和可拆卸地将尖端固定到喷嘴体的保持器。 保持器由具有比尖端更低的导热系数的材料构成，使得保持器还用于使尖端与由模具呈现的相对冷的周围的散热器绝缘。 虽然每个保持器防止其尖端被无意地从喷嘴主体轴向地释放，但是保持器仅沿着其长度仅在两个轴向间隔开的位置处接合尖端，以便呈现与大部分尖端相关的绝缘空气间隙。 当喷嘴热时，气隙的另外暴露的一端由于保持器上的密封环被密封，当尖端加热时，该密封环逐渐紧固在尖端的配合的斜面上。 每个喷嘴以球和插座的关系安装在歧管块上，使得喷嘴可以随着歧管块和喷嘴在注射过程开始时从室温升高到工作温度而旋转和自对准。

公开(公告)号：US07704069B2

公开(公告)日：2010-04-27

申请号：US11313168

申请日：2005-12-20

申请人： Jincheng Chen ,  Brian R. Lefebure ,  Paul W. Mitchell

发明人： Jincheng Chen ,  Brian R. Lefebure ,  Paul W. Mitchell

IPC分类号： B29C45/20

CPC分类号： B29C45/27 ,  B29C45/2711 ,  B29C45/2725 ,  B29K2105/253

摘要： Injection molding apparatus has upper and lower mold halves that split along the center line of the parison cavity and the gate opening leading thereto. Each hot melt injection nozzle is received within a tubular insert cup having a reduced diameter tip that is seated within the gate opening. The cup is mounted to the lower mold half so as to remain secured thereto as the upper mold half opens and closes the mold. The base end of each nozzle has a swivel ball and socket relationship with the manifold block which supplies it with hot melt, while the tip end of each injection nozzle has a swivel ball and socket type interface with the interior front end of the insert cup, thus providing for dimensional variations in the parts of the tooling that arise during non-uniform thermal expansion and contraction thereof.

摘要翻译： 注射成型装置具有沿着型坯腔的中心线和通向其的门开口分开的上半模和下半模。 每个热熔注射喷嘴被容纳在管状插入杯内，其具有位于门开口内的减小直径的尖端。 杯子安装在下半模上，以便当上半模打开和关闭模具时，将其保持固定。 每个喷嘴的基端与歧管块具有与热熔体相提供的旋转球和插座关系，而每个喷嘴的尖端具有与插入杯的内部前端的旋转球和插座型接口， 从而提供在其不均匀的热膨胀和收缩期间产生的工具的部分中的尺寸变化。

公开(公告)号：US5635227A

公开(公告)日：1997-06-03

申请号：US471821

申请日：1995-06-07

申请人： James A. Whisenhunt ,  Brian R. Lefebure

发明人： James A. Whisenhunt ,  Brian R. Lefebure

IPC分类号： B29C45/28 ,  B29C45/23

CPC分类号： B29C45/281

摘要： A mold assembly is provided for use in an injection molding machine and includes a cavity plate defining a cavity adapted to receive a moldable material, and a manifold positioned behind the cavity plate. The manifold includes a passageway for guiding the flow of the moldable material to the cavity plate. A support plate is positioned adjacent the manifold and includes a rear face into which a cup shaped recess extends, a front face opposite the rear face, and a bore extending between the front face and the recess. A nozzle is provided between the passageway in the manifold and the cavity in the plate for directing the flow of material into the cavity, and a valve gate pin extends into the nozzle. The valve gate pin is movable between a forward flow-blocking position and a rearward flow-permitting position, and a cylinder unit moves the valve gate pin between these positions. The actuator includes a drop-in pneumatic actuator secured within the recess of the support plate. The actuator includes a body presenting a front closed end and a rear open end, a movable piston extending through the closed end of the cylinder and being connected to the piston. A cap closes off the open end of the cylinder, and threaded fasteners are provided for holding the cap and cylinder together as a unit. Threaded fasteners are also provided for securing the actuator within the recess of the support plate so that the actuator can be dropped into the recess and secured in place or pulled from the recess as an assembled unit.

摘要翻译： 模具组件被提供用于注射成型机，并且包括限定适于容纳可模制材料的空腔的空腔板和位于腔板后面的歧管。 歧管包括用于将可模制材料的流动引导到空腔板的通道。 支撑板邻近歧管定位，并且包括杯形凹部延伸的后表面，与后表面相对的前表面，以及在前表面和凹部之间延伸的孔。 在歧管中的通道和板之间的空腔中设置有一个喷嘴，用于将物料流引导到空腔中，并且阀门销延伸到喷嘴中。 阀门销可在正向阻流位置和向后流动允许位置之间移动，并且气缸单元在这些位置之间移动阀门销。 致动器包括固定在支撑板的凹部内的落入气动致动器。 致动器包括呈现前封闭端和后开口端的主体，延伸穿过气缸的封闭端并连接到活塞的活动活塞。 盖子封闭气缸的开口端，并且提供螺纹紧固件用于将盖和气缸保持在一起作为一个单元。 还提供螺纹紧固件用于将致动器固定在支撑板的凹槽内，使得致动器能够落入凹部中并固定在适当位置，或者作为组装单元从凹部拉出。