公开(公告)号：US5539857A

公开(公告)日：1996-07-23

申请号：US186281

申请日：1994-01-24

申请人： Alan N. McGrevy

发明人： Alan N. McGrevy

IPC分类号： B29C45/27 ,  F24H1/12 ,  F24H9/18 ,  H05B3/44 ,  H05B3/00 ,  F24H1/00

CPC分类号： B29C45/2738 ,  F24H1/121 ,  F24H9/1818 ,  H05B3/44

摘要： A heating block made from a heat conductive material has a passage through which a fluid heated by the heater can flow. A groove preferably having a looped configuration extends into the block from a peripheral surface in the block. A heater made from an electrically conductive and heat conductive material is disposed in the groove, preferably in a looped configuration corresponding to the looped configuration of the groove. A heat conductive member disposed in the groove is provided with a hole to receive the heater in an enveloping relationship. The member may be defined by a pair of separable portions. The member is preferably disposed in the looped relationship in the groove. Localized deformation of the heating block holds the member and the heater in a fixed relationship with the block. The heater may deteriorate or become defective with extended usage and may have to be replaced. To accomplish this, the heater and the member may be removed as a unit from the block after removing the deformation. The portions in the member are separated to remove the heater. A new heater may then be disposed between the split portions which may then be abutted. The member and the heater may then be disposed as a unit in the groove and the local deformation may be reinstated in the block to retain the member and the heater in a fixed relationship with the block.

摘要翻译： 由导热材料制成的加热块具有通过加热器加热的流体可以流过的通道。 优选地具有环形构造的槽从块中的外围表面延伸到块中。 由导电和导热材料制成的加热器设置在凹槽中，优选地以对应于凹槽的环形构型的环形构造。 设置在槽中的导热构件设置有用于以包围关系接收加热器的孔。 构件可以由一对可分离部分限定。 该构件优选地以凹槽中的环形关系设置。 加热块的局部变形使构件和加热器与块保持固定关系。 加热器可能会恶化或变得有缺陷，并且可能需要更换。 为了实现这一点，除去变形之后，可以将加热器和构件作为一个单元从块中移除。 构件中的部分被分离以除去加热器。 然后可以将新的加热器设置在分开部分之间，然后可以将其紧靠。 然后可以将构件和加热器作为单元布置在凹槽中，并且局部变形可以在块中恢复以将构件和加热器保持与块的固定关系。

公开(公告)号：US5820900A

公开(公告)日：1998-10-13

申请号：US831530

申请日：1997-04-01

申请人： Alan N. McGrevy

发明人： Alan N. McGrevy

IPC分类号： B29C45/27 ,  B29C45/20

CPC分类号： B29C45/2737 ,  B29C2045/274 ,  B29C2045/2777

摘要： This invention provides an improved heating apparatus for controlling the temperatures of the resin melt that is pressure fed to a molding cavity comprising a heating jacket 30 comprising the concentric tubular elements; a copper sheath 32 having an inside surface 34 and an outer surface 36, a retainer sleeve 40 and coiled heating element 42 sandwiched between the sheath 32 and the retainer sleeve 40. The inside surface of the sheath 32 is formed with at least one circumferential groove 38 which provides an insulating air gap so that a lesser amount of heat is conducted to the central portion of the heating jacket 30 thereby creating three distinct temperature zones. The outer surface 23 of the nozzle 22 is provided with a longitudinal groove 46 extending down its outside surface between the sheath 32 and the nozzle housing 22 for the hot runner conduit 24. A thermocouple sensor cable 52 is received in the longitudinal groove so that the thermocouple sensor 50 is strategically positioned adjacent the gate well section 28 to maintain the temperature of the resin melt entering the cavity.

摘要翻译： 本发明提供了一种改进的加热装置，用于控制压力馈送到模腔的树脂熔体的温度，包括包括同心管状元件的加热套30。 具有内表面34和外表面36的铜护套32，夹持套筒40和夹在护套32和保持套筒40之间的盘绕加热元件42.护套32的内表面形成有至少一个周向凹槽 38，其提供绝缘气隙，使得较少量的热量传导到加热套管30的中心部分，从而形成三个不同的温度区域。 喷嘴22的外表面23设置有纵向凹槽46，其沿着外表面延伸到护套32和用于热流道导管24的喷嘴壳体22之间。热电偶传感器电缆52容纳在纵向凹槽中，使得 热电偶传感器50在栅极井区28附近有策略地定位，以保持树脂熔体的温度进入空腔。

公开(公告)号：US5716651A

公开(公告)日：1998-02-10

申请号：US614177

申请日：1996-03-12

申请人： Alan N. McGrevy

发明人： Alan N. McGrevy

IPC分类号： B29C45/30 ,  B29C45/20

CPC分类号： B29C45/30 ,  B29C2045/308

摘要： A nozzle has a runner for passing fluid through the nozzle. The fluid is heated as it passes through the runner. The temperature of the fluid may be regulated. The fluid flows from the runner into a well formed in a nozzle well insert which is disposed on the nozzle. A gate is disposed in the nozzle well insert in communication with the well. A tip having a raised portion and a reduced portion, each extending in a helical pattern, is disposed in the runner with the raised portion abutting the surface of the runner. The outlet end of the tip is disposed relative to the well in the nozzle well insert so that the fluid in the reduced portion of the tip flows in a swirling motion through the well to wipe the surface of the well and remove the fluid previously in the well. The surfaces of the raised and reduced portions of the tip may be coated with a material to prevent such surfaces from becoming deformed by the fluid flowing through the tip and the gate into the mold. In this way, a fluid of one color (e.g. blue) can be quickly replaced in the well with a fluid of a second color (e.g. red) to produce satisfactory articles purely of the second color (e.g. red). This results from the wiping action in the well by the fluid flowing in the helical path through the tip and the well.

摘要翻译： 喷嘴具有用于使流体通过喷嘴的流道。 流体通过流道时被加热。 可以调节流体的温度。 流体从流道流入形成在设置在喷嘴上的喷嘴井插入件中的井中。 一个浇口设置在与井相连通的喷嘴井插入件中。 具有突出部分和缩小部分的尖端，每个延伸成螺旋形图案，设置在流道中，凸起部分与流道的表面邻接。 尖端的出口端相对于喷嘴井插入件中的井布置，使得尖端的减少部分中的流体以旋转的方式流过井，以擦拭井的表面并将先前在 好。 尖端的凸起部分和缩小部分的表面可以涂覆有材料，以防止这些表面由流过尖端和浇口流入模具的流体变形。 以这种方式，可以利用第二种颜色（例如红色）的流体在井中快速地更换一种颜色（例如蓝色）的流体，以产生纯粹为第二种颜色（例如红色）的令人满意的物品。 这是由于在通过尖端和井的螺旋路径中流动的流体在井中的擦拭作用。

公开(公告)号：US5513976A

公开(公告)日：1996-05-07

申请号：US227057

申请日：1994-04-13

申请人： Alan N. McGrevy

发明人： Alan N. McGrevy

IPC分类号： B29C45/30 ,  B29C45/20

CPC分类号： B29C45/30 ,  B29C2045/308

摘要： A nozzle has a runner for passing fluid through the nozzle. The fluid is heated as it passes through the runner. The temperature of the fluid may be regulated. The fluid flows from the runner into a well formed in a nozzle well insert which is disposed on the nozzle. A gate is disposed in the nozzle well insert in communication with the well. A tip having a raised portion and a reduced portion, each extending in a helical pattern, is disposed in the runner with the raised portion abutting the surface of the runner. The outlet end of the tip is disposed relative to the well in the nozzle well insert so that the fluid in the reduced portion of the tip flows in a swirling motion through the well to wipe the surface of the well and remove the fluid previously in the well. The surfaces of the raised and reduced portions of the tip may be coated with a material to prevent such surfaces from becoming deformed by the fluid flowing through the tip and the gate into the mold. In this way, a fluid of one color (e.g. blue) can be quickly replaced in the well with a fluid of a second color (e.g. red) to produce satisfactory articles purely of the second color (e.g. red). This results from the wiping action in the well by the fluid flowing in the helical path through the tip and the well.

摘要翻译： 喷嘴具有用于使流体通过喷嘴的流道。 流体通过流道时被加热。 可以调节流体的温度。 流体从流道流入形成在设置在喷嘴上的喷嘴井插入件中的井中。 一个浇口设置在与井相连通的喷嘴井插入件中。 具有突出部分和缩小部分的尖端，每个延伸成螺旋形图案，设置在流道中，凸起部分与流道的表面邻接。 尖端的出口端相对于喷嘴井插入件中的井布置，使得尖端的减少部分中的流体以旋转的方式流过井，以擦拭井的表面并将先前在 好。 尖端的凸起部分和缩小部分的表面可以涂覆有材料，以防止这些表面由流过尖端和浇口流入模具的流体变形。 以这种方式，可以利用第二种颜色（例如红色）的流体在井中快速地更换一种颜色（例如蓝色）的流体，以产生纯粹为第二种颜色（例如红色）的令人满意的物品。 这是由于在通过尖端和井的螺旋路径中流动的流体在井中的擦拭作用。

公开(公告)号：US06471392B1

公开(公告)日：2002-10-29

申请号：US09802037

申请日：2001-03-07

申请人： Richard A. Holl ,  Alan N. McGrevy

发明人： Richard A. Holl ,  Alan N. McGrevy

IPC分类号： B01F712

CPC分类号： F28F13/02 ,  B01F7/12 ,  B01F15/00714 ,  B01F15/00844 ,  B01F15/00909 ,  B01F15/06 ,  B01F2013/1091 ,  B01J19/10 ,  B01J19/122 ,  B01J19/125 ,  B01J19/126 ,  B01J19/127 ,  B01J19/1887 ,  B01J2219/00094 ,  B01J2219/0888 ,  B01J2219/182 ,  B01J2219/1943 ,  F28D7/0066 ,  F28D11/02

摘要： Methods and apparatus for processing materials employ two cylindrical members, one mounted within the other, defining an annular processing chamber. Preferably, the outer member is stationery (stator), while the inner rotates (rotor). The radial spacing between the stator inner surface and the rotor outer surface is equal to or less than the back-to-back radial thicknesses of the two laminar boundary layers formed on the two surfaces by the material being processed. The surfaces are made smooth, as by buffing to a finish of not more than 10 microinches. This structure inhibits formation of Taylor vortices in the processing passage, which cause unstable flow and consequent incomplete mixing. Preferably, the relative velocity between rotor and stator surfaces is at least 1.2 meters per second. The surfaces may be coated with catalysts. Transducers may be provided to apply processing energy, such as microwave, light or ultrasonic waves, through the stator wall.

摘要翻译： 用于加工材料的方法和设备采用两个圆柱形构件，一个安装在另一个中，限定环形处理室。 优选地，外部构件是文具（定子），而内部旋转（转子）。 定子内表面和转子外表面之间的径向间距等于或小于被处理材料在两个表面上形成的两个层状边界层的背对背径向厚度。 表面光滑，通过抛光至不超过10微英寸的光洁度。 该结构抑制了处理通道中泰勒涡流的形成，这导致不稳定的流动并导致不完全的混合。 优选地，转子和定子表面之间的相对速度为至少1.2米/秒。 表面可以涂覆有催化剂。 可以提供传感器以通过定子壁施加诸如微波，光或超声波的处理能量。

公开(公告)号：US6099292A

公开(公告)日：2000-08-08

申请号：US956187

申请日：1997-10-22

申请人： Alan N. McGrevy

发明人： Alan N. McGrevy

IPC分类号： B29C45/27 ,  B29C45/73

CPC分类号： B29C45/2738

摘要： A unitized heat conductive assembly 32 formed of a one piece heat conductive conduit 40 which permits shaping the heat conductive assembly as a continuous unit. The heat conductive assembly 32 is press fit into the heater block 12 configured so that it provides a predetermined flow path 14 for the flowable molten plastic materials to be delivered to the injector nozzles. There is provided a heat flow path 28 that follows the flow path 14. The heat conductive carrying conduit 40 is formed with an opening 42. The conductive conduit 40 is formed from a tubular piece of conductive metal such as copper or brass by a swaging process which forms a tubular structure 40 in a continuous length. The outer contour of the tubular structure 40 can be round or oral and the preferred shape is either square or rectangular. The cross-section the heat conductive conduit 40 has a dimension W transverse the cross-section and a narrower dimension N at the bottom of the cross-section so that it is adapted to be press fit into the channel 30. A channel 30 is provided have a dimension W transverse the channel mouth 52 and a narrow dimension N.sup.1 at the bottom. The heat conductive conduit 40 forms a press fit within the channel 30. The continuous length of heat conductive conduit 40 is shaped to follow the flow path 14 of the molten plastic material flowing through the manifold 10.

摘要翻译： 由单件导热管道40形成的单元化导热组件32，其允许将导热组件成形为连续单元。 导热组件32压配合到加热器块12中，该加热器组件12构造成使得其提供预定的流路14，用于可流动的熔融塑料材料被输送到喷射器喷嘴。 提供了沿着流路14的热流路28.导热承载导管40形成有开口42.导电导管40由诸如铜或黄铜的管状导电金属片通过模锻工艺形成 其形成连续长度的管状结构40。 管状结构40的外轮廓可以是圆形或口头的，并且优选的形状是正方形或矩形。 导热导管40的横截面横截面的尺寸W和横截面底部的较窄尺寸N，使得其适于压配合到通道30中。提供通道30 具有横向于通道口52的尺寸W和底部的窄尺寸N1。 导热管道40在通道30内形成压配合。导热导管40的连续长度被成形为跟随流过歧管10的熔融塑性材料的流路14。

公开(公告)号：US6045742A

公开(公告)日：2000-04-04

申请号：US141937

申请日：1998-08-28

申请人： Alan N. McGrevy

发明人： Alan N. McGrevy

IPC分类号： B29C45/27 ,  B29C45/20

CPC分类号： B29C45/2737 ,  B29C2045/274 ,  B29C2045/2777

摘要： This invention provides an improved heating apparatus for controlling the temperatures of the resin melt that is pressure fed to a molding cavity comprising a heating jacket 30 comprising the concentric tubular elements; a copper sheath 32 having an inside surface 34 and an outer surface 36, a retainer sleeve 40 and coiled heating element 42 sandwiched between the sheath 32 and the retainer sleeve 40. The inside surface of the sheath 32 is formed with at least one circumferential groove 38 which provides an insulating air gap so that a lesser amount of heat is conducted to the central portion of the heating jacket 30 thereby creating three distinct temperature zones. The sheath 32 is provided with a channel 46 extending longitudinally down its inside surface 36 between the heating coil 42 and the outside surface of the housing 22 for the hot runner conduit 24. A thermocouple sensor cable 52 is received in the channel so that the thermocouple sensor 50 is strategically positioned adjacent the gate well section 28 to maintain the temperature of the resin melt entering the cavity.

摘要翻译： 本发明提供了一种改进的加热装置，用于控制压力馈送到模腔的树脂熔体的温度，包括包括同心管状元件的加热套30。 具有内表面34和外表面36的铜护套32，夹持套筒40和夹在护套32和保持套筒40之间的盘绕加热元件42.护套32的内表面形成有至少一个周向凹槽 38，其提供绝缘气隙，使得较少量的热量传导到加热套管30的中心部分，从而形成三个不同的温度区域。 护套32设置有通道46，该通道46在其内表面36之间纵向延伸，位于加热线圈42和用于热流道导管24的壳体22的外表面之间。热电偶传感器电缆52被容纳在通道中，使得热电偶 传感器50与浇口孔部分28相对策地定位，以保持树脂熔体进入腔体的温度。

公开(公告)号：US5804228A

公开(公告)日：1998-09-08

申请号：US700959

申请日：1996-08-21

申请人： Michael Kofsman ,  Alan N. McGrevy ,  Charles R. Kroeger

发明人： Michael Kofsman ,  Alan N. McGrevy ,  Charles R. Kroeger

IPC分类号： B29C45/27 ,  B29C45/30 ,  B29C45/20

CPC分类号： B29C45/30 ,  B29C45/278 ,  B29C2045/2796

摘要： A hot tip nozzle assembly for injection molding plastic components comprises a nozzle housing defining a hot runner passage and a nozzle tip section which is received in the hot runner passage. The nozzle tip section defines a hot runner tip passage in flow communication with the hot runner passage. The nozzle tip section slides freely within the hot runner passage during injection molding. A stop is provided on the nozzle tip section to limit downward movement relative to the cavity gate and automatically position the nozzle tip relative to the injection gate of the mold. In addition, axial thermal expansion of the nozzle housing is not imparted to the nozzle tip section. The nozzle tip section also has a restricted length that can axially thermally expand. Accordingly, the position of the nozzle tip is only minutely affected by even larger temperature changes in the nozzle assembly. This controlled thermal expansion together with the sliding movement of the nozzle tip section relative to the nozzle housing maintains the nozzle tip at a substantially constant position during the injection molding operation and minimizes vestige formation in the molded components.

摘要翻译： 用于注射塑料部件的热尖嘴组件包括限定热流道通道的喷嘴壳体和容纳在热流道通道中的喷嘴尖端部分。 喷嘴尖端部分限定了与热流道通道流动连通的热流道尖端通道。 在注射成型期间，喷嘴尖端部分在热流道通道内自由滑动。 在喷嘴末端部分设有一个止动件，以限制相对于腔体浇口的向下移动，并相对于模具的注射口自动定位喷嘴尖端。 此外，喷嘴壳体的轴向热膨胀不会赋予喷嘴头部。 喷嘴尖端部分也具有可以轴向热膨胀的有限长度。 因此，喷嘴头的位置仅受喷嘴组件中的甚至更大的温度变化的微小的影响。 这种受控的热膨胀以及喷嘴头部分相对于喷嘴壳体的滑动运动在注射成型操作期间将喷嘴头保持在基本上恒定的位置，并且最小化模制部件中的痕迹形成。

公开(公告)号：US5736171A

公开(公告)日：1998-04-07

申请号：US657279

申请日：1996-06-04

申请人： Alan N. McGrevy

发明人： Alan N. McGrevy

IPC分类号： B29C45/27 ,  B29C45/20

CPC分类号： B29C45/2735 ,  B29C2045/2766

摘要： A nozzle body is provided that is equipped with a runner, passages and orifices all communicating with one another to provide a fluid delivery system to mold cavities. The nozzle body is provided with a heat insulating cap equipped with peripheral projections at spaced positions around the outside wall of the cap so that the fluid injected into the mold at the gatewell will shear with a smooth cleavage after solidifying to provide a smooth separation surface on the molded part. Each gatewell is disposed in a peripheral projection in the cap and the peripheral projection is spaced of few thousandths from the mold. The cap serves to minimize the loss of heat from the nozzle body by aligning and centering the cap and the nozzle body relative to the gatewells leading to the mold.

摘要翻译： 提供了一种喷嘴体，其配备有流体，通道和孔，它们彼此连通以提供流体输送系统到模腔。 喷嘴体设置有隔热盖，该隔热盖在围绕盖的外壁的间隔位置处设置有周边突起，使得在凝固时注入模具中的流体将在固化之后以平滑的切割剪切以在其上形成平滑的分离表面 模制件。 每个门卫设置在盖的周边突起中，并且周边突起与模具间隔数千分之一。 该帽用于通过使帽和喷嘴体相对于通向模具的浇口对准和对中而使喷嘴体的热量损失最小化。

公开(公告)号：US5478230A

公开(公告)日：1995-12-26

申请号：US227016

申请日：1994-04-13

申请人： Alan N. McGrevy

发明人： Alan N. McGrevy

IPC分类号： B29C45/27 ,  B29C45/28 ,  B29C45/23

CPC分类号： B29C45/2806 ,  B29C45/27 ,  B29C2045/277

摘要： A manifold is disposed within a pair of abutting pre-load mold plates in a pre-load relationship. Fluid flowing through the manifold is heated by a first heater. The fluid is then divided into a plurality of passages in the manifold. Pairs of passages have a back-to-back in-line relationship. A cylinder between each pair of the in-line passages holds a pair of pistons in the in-line relationship. Each piston in the pair has piston units in an interdigitated relationship with piston units on the other piston in the pair. Each pair of pistons is movable by pressurized fluid (e.g. air) between first and second positions. In the first position, each piston provides for the fluid (e.g. resin melt) flow through one of the passages to a pair of runners in the manifold. In the second position, each piston prevents the resin melt flow through the passages. A first heater heats the resin melt flowing through the passages. A second heater heats the resin melt flowing through the runners. Resin melt is prevented from leaking between the manifold and the mold plates even with temperature changes in the manifold as a result of the heating of the resin melt. This is accomplished by a pair of tongues, one rigid and the other resilient, extending from the manifold to the mold plate. In this way, fluid flowing into the manifold through one inlet exits through a plurality (e.g. 8) of gates without leakage after being heated at the passages and at the runners.

摘要翻译： 歧管在预加载关系中设置在一对邻接的预加载模板内。 流经歧管的流体被第一加热器加热。 然后将流体分成歧管中的多个通道。 一对通道有一个背靠背的在线关系。 每对直线通道之间的圆柱体以直线关系保持一对活塞。 该对中的每个活塞具有与该对中的另一个活塞上的活塞单元交错关系的活塞单元。 每对活塞可在第一和第二位置之间通过加压流体（例如空气）移动。 在第一位置，每个活塞提供流体（例如树脂熔体）流过其中一个通道到歧管中的一对流道。 在第二位置，每个活塞防止树脂熔体流过通道。 第一加热器加热流过通道的树脂熔体。 第二加热器加热流过流道的树脂熔体。 即使由于树脂熔体的加热，歧管中的温度变化也能防止树脂熔体在歧管和模具板之间泄漏。 这是通过一对舌片实现的，一对刚性和另一个弹性的舌片从歧管延伸到模板。 以这种方式，通过一个入口流入歧管的流体在通道和流道之间被加热之后通过多个（例如8个）门而不泄漏。