公开(公告)号：US06398995B1

公开(公告)日：2002-06-04

申请号：US09686494

申请日：2000-10-10

申请人： Daniel Richard Eisenlord ,  Thomas Lee McCormick

发明人： Daniel Richard Eisenlord ,  Thomas Lee McCormick

IPC分类号： B28B120

CPC分类号： B29C44/1228

摘要： A high impact resistant rotationally molded door and process for molding the door has the hinge post integrally attached to the rotationally molded skin of the door. A hinge member is provided that has a perforate U-shaped metal sheet bonded to preferably the upper portion of the hinge post. The sides of the U-shaped metal sheet are spaced sufficiently apart so that registration with the subsequently rotationally molded plastic skin of the door occurs. This hinge member at the perforate metal sheet rapidly heats during rotational molding. The perforate metal thus bonds to integrally mold with the skin of the door. This bonding occurs as the hinge post is molded within the hollow door construction along its hinging edge. The hinge member attaches at the perforate U-shaped metal sheet to the skin of the door while all other portions of the hinge post are free to move with respect to the door. The door is thus formed without door warping during curing and shrinking of rotationally molded plastic door body. Door warping is avoided. At the same time, when the door is in use, the perforate U-shaped metal sheet in its integral attachment to the rotationally molded skin of the door prevents dislodgment of the hinge post relative to the door.

公开(公告)号：US06511619B1

公开(公告)日：2003-01-28

申请号：US09446811

申请日：1999-12-27

申请人： LeRoy Payne

发明人： LeRoy Payne

IPC分类号： B28B120

CPC分类号： B29C33/36 ,  B29C41/04 ,  B29C41/06 ,  B29C41/22 ,  B29C41/36 ,  B29C41/52 ,  B29C44/386 ,  B29C70/62 ,  B29C70/882 ,  B29C2791/001 ,  B29K2075/00 ,  B29K2105/0058 ,  B29K2105/04 ,  B29K2105/08 ,  B29K2105/251 ,  B29K2995/0008 ,  B29K2995/0018 ,  B29L2007/002 ,  B29L2031/10 ,  E04C2/205

摘要： A multiaxis rotational molding apparatus includes a support portion, a molding portion and a control portion. The support portion includes an upstanding arcuate frame section. The molding portion includes an upstanding arcuate mold supporting assembly disposed within and spaced from the arcuate frame section. A mold assembly includes separable mold sections forming a substantially enclosed mold cavity carried within the mold supporting assembly. The control portion includes drive assemblies arranged in a preselected configuration adjacent the arcuate frame section selectively energized in coordination with adjacent drive assemblies for movement of the mold supporting assembly in a selected profile. Programmable memory stores preselected operating parameters. Monitors sense operating information form control components. Circuitry transmits signals from the monitors to a coordinator comparing the operating information with operating parameters stored in the memory to control rotation of the mold supporting assembly in a preselected rotational profile.

摘要翻译： 多轴旋转成型设备包括支撑部分，模制部分和控制部分。 支撑部分包括直立的弓形框架部分。 模制部分包括设置在弓形框架部分内并与弓形框架部分间隔开的直立弓形模具支撑组件。 模具组件包括可分离的模具部分，其形成承载在模具支撑组件内的基本封闭的模腔。 控制部分包括驱动组件，驱动组件布置成邻近弓形框架部分的预选配置，与相邻的驱动组件协调地选择性地通电，以使模具支撑组件在选定的轮廓中移动。 可编程存储器存储预选的操作参数。 监控器感知操作信息表控件组件。 电路将来自监视器的信号传送到协调器，以将操作信息与存储在存储器中的操作参数进行比较，以控制模具支撑组件以预选旋转轮廓的旋转。

公开(公告)号：US06338623B1

公开(公告)日：2002-01-15

申请号：US09561760

申请日：2000-04-29

申请人： Richard A. Durrant

发明人： Richard A. Durrant

IPC分类号： B28B120

CPC分类号： B29C41/46 ,  B29C41/06

摘要： A rotational molding oven for forming an object from a mold. The oven includes a cavity for retaining the mold, a burner for heating the cavity and melting the resin and a device for rocking the mold between −45° and 45° from a horizontal plane. The rocking device is outside, extending into the cavity, maintaining the mold in the center of the cavity. The rocking device facilitates distribution of resin within the mold and improves thermal flow of heat within the cavity thereby increasing thermal efficiency and minimizing the size of the cavity. The rocking device includes a first track outside the cavity, a carriage assembly, a drive assembly connected to the carriage assembly and a guide assembly connected between the first track and carriage assembly for translating up and down the first track, causing the carriage assembly to move therewith and the mold to rock about the central axis of the cavity. The carriage assembly is positioned below the guide assembly at all points during translational movement. The drive assembly includes a spindle bearing connected to the carriage assembly and a spindle arm extending from the spindle bearing and through a side of the cavity for releasably connecting to the mold for rotating the mold through multiple complete 360° rotations in either a clockwise or counterclockwise direction. A cooling system consisting of exhaust fan, air intake damper and water spray is positioned in the cavity for cooling the mold containing the melted resin.

摘要翻译： 一种用于从模具形成物体的旋转成型炉。 烤箱包括用于保持模具的空腔，用于加热空腔并熔化树脂的燃烧器以及用于使模具与水平面在-45度和45度之间摇摆的装置。 摆动装置在外部，延伸到空腔中，将模具保持在空腔的中心。 摆动装置有利于树脂在模具内的分布并且改善腔内热的热流，从而提高热效率并使空腔的尺寸最小化。 摇摆装置包括腔外部的第一轨道，滑架组件，连接到滑架组件的驱动组件和连接在第一轨道和滑架组件之间的引导组件，用于使第一轨道上下平移，使滑架组件移动 并且模具围绕空腔的中心轴线摇摆。 托架组件在平移运动期间的所有点处定位在导向组件的下方。 驱动组件包括连接到托架组件的主轴轴承和从主轴轴承延伸并通过空腔的侧面的主轴臂，用于可释放地连接到模具，用于通过顺时针或逆时针方向的多次完整360°旋转来旋转模具 方向。 由排风扇，进气阻尼器和喷水器组成的冷却系统位于空腔中，用于冷却含有熔融树脂的模具。