Self-contained apparatus for fiber element placement
    41.
    发明授权
    Self-contained apparatus for fiber element placement 失效
    用于光纤元件放置的独立设备

    公开(公告)号:US6026883A

    公开(公告)日:2000-02-22

    申请号:US70421

    申请日:1998-04-30

    IPC分类号: B29C53/56 B29C70/38 B65H81/00

    摘要: A self-contained apparatus for placement of discrete fiber element tows on a mandrel or other tooling. The apparatus carries a spooled fiber element supply, which is directed to a compaction roller over a short, non-convoluted path through a cut/add module having a knife assembly for severing a discrete tow from a continuous fiber element filament, and a drive assembly for feeding the tow and restarting feed of a new tow after severance of the prior one from the filament. The apparatus is particularly suitable for sequentially laying up superimposed, or stacked, tows to define rib-like stiffeners of composite material for reinforcing composite shell structures, and grids of such stiffeners. Methods of using the apparatus are also disclosed.

    摘要翻译: 一种独立的设备,用于将离散纤维丝束放置在心轴或其他工具上。 该装置承载卷绕的纤维元件供应装置,其通过具有刀组件的切割/添加模块在短的非卷曲路径上被引导到压实辊,该刀组件用于从连续的纤维元件丝切断离散的丝束,以及驱动组件 用于在先前从丝中断之后进给丝束并重新启动新丝束的进料。 该装置特别适用于顺序铺设叠加或堆叠的丝束以限定用于增强复合壳结构的复合材料的肋状加强件和这种加强件的网格。 还公开了使用该装置的方法。

    Composite prepreg application device
    43.
    发明授权
    Composite prepreg application device 失效
    复合预浸料应用装置

    公开(公告)号:US5587041A

    公开(公告)日:1996-12-24

    申请号:US457608

    申请日:1995-06-01

    摘要: A heated shoe and cooled pressure roller assembly for composite prepreg application is provided. The shoe assembly includes a heated forward contact surface having a curved pressure surface. The following cooled roller provides a continuous pressure to the thermoplastic while reducing the temperature to approximately 5.degree. C. below glass transition temperature. Electric heating coils inside the forward portion of the shoe heat a thermoplastic workpiece to approximately 100.degree. C. above the glass transition. Immediately following the heated contact surface, a cooled roller cools the work. The end sharpened shape of the heated shoe trailing edge tends to prevent slag buildup and maintain a uniform, relaxed stress fabrication.

    摘要翻译: 提供了一种用于复合预浸料应用的加热鞋和冷却压力辊组件。 鞋组件包括具有弯曲压力表面的加热的前向接触表面。 以下冷却辊在热塑性塑料上提供连续的压力,同时将温度降低到玻璃化转变温度以下约5℃。 在鞋的前部内部的电加热线圈将热塑性工件加热至玻璃化转变点上方约100℃。 在加热的接触表面之后,冷却的辊子冷却工件。 加热的鞋后缘的端部锐化形状倾向于防止积渣并保持均匀的,松弛的应力制造。

    Composite material laser flaw detection
    44.
    发明授权
    Composite material laser flaw detection 失效
    复合材料激光探伤

    公开(公告)号:US5562788A

    公开(公告)日:1996-10-08

    申请号:US309534

    申请日:1994-09-20

    IPC分类号: B29C70/38 B32B31/00

    摘要: A method of and apparatus for detecting flaws on a composite surface laid-up by a fiber placement machine. The invention includes a vision imaging system (78) mounted on the machine so that it has a field of view of the composite tows after they have been compacted by a compaction roller (74). In one embodiment, the visual imaging system (78) includes a laser analog displacement sensor. The imaging system provides a computer analysis system (84) with data regarding the location of the edges of the individual composite tows. The computer imaging system (84) uses the tow edge location data to compute the location and size of gaps or overlaps between the tows or the presence of foreign material. This information is useful in quality control models to evaluate the manufacturing process or final part quality.

    摘要翻译: 一种用于检测由纤维铺放机铺设的复合表面上的瑕疵的方法和设备。 本发明包括安装在机器上的视觉成像系统(78),使得它们在被压实辊(74)压实后具有复合丝束的视场。 在一个实施例中,视觉成像系统(78)包括激光模拟位移传感器。 成像系统为计算机分析系统(84)提供关于单个复合丝束的边缘的位置的数据。 计算机成像系统(84)使用拖曳边缘位置数据来计算丝束之间的间隙或重叠的位置和尺寸或异物的存在。 该信息在质量控制模型中有用,用于评估制造过程或最终零件质量。

    Multi-tow fiber placement machine with full band width clamp, cut, and
restart capability
    45.
    发明授权
    Multi-tow fiber placement machine with full band width clamp, cut, and restart capability 失效
    多丝纤维贴片机具有全带宽钳位,切割和重启功能

    公开(公告)号:US4943338A

    公开(公告)日:1990-07-24

    申请号:US248702

    申请日:1988-09-26

    申请人: Jerry D. Wisbey

    发明人: Jerry D. Wisbey

    IPC分类号: B29C70/38

    摘要: A fiber placement machine has a head for controlling fiber tows running from an upstream supply creel to a downstream work laydown zone, and the head includes a bracket supporting a presser member which impresses and compacts the fiber against a workpiece. The head includes a relatively rigid fiber guide assembly and a drive for moving the fiber guide to an advanced position near the presser member and a retracted position away from the presser member. In the advanced position, fiber tows run uninhibited through channels in the fiber guide. However, when it is desired to cut the fibers, the fiber guide is run to the retracted position, at which point the guide is clamped to the incoming fiber tows. After the exiting cut fiber has been laid down on the workpiece by the presser member, the incoming fibers may be restarted by driving the fiber guide and its clamped fiber tow to an advanced position where the fiber tow end may be grabbed in the nip formed between the presser member and the workpiece. At such moment, the fiber guide clamp is released to again permit free running of the tows through the fiber guide.

    摘要翻译: 纤维铺放机具有用于控制从上游供应架轴运行到下游工作沉积区域的纤维束的头部,并且头部包括支撑压紧构件的托架,其将纤维压紧并压紧工件。 头部包括相对刚性的纤维引导组件和用于将纤维引导件移动到靠近压紧构件的前进位置和远离压紧构件的缩回位置的驱动器。 在先进的位置,纤维束通过纤维导管中的通道不受阻碍地运行。 然而,当需要切割纤维时,纤维引导件运行到缩回位置,在该位置,引导件被夹紧到进入的纤维束上。 在离开的切割的纤维已经通过压紧构件放置在工件上之后,可以通过将纤维引导件及其夹紧的纤维束驱动到先进位置来重新启动进入的纤维,其中纤维束端可被抓住在 压脚件和工件。 此时,纤维引导夹被释放,再次允许丝束通过纤维引导件自由运行。

    Redirect roller apparatus for fiber placement machine
    46.
    发明授权
    Redirect roller apparatus for fiber placement machine 失效
    光纤贴片机重定向辊装置

    公开(公告)号:US4877193A

    公开(公告)日:1989-10-31

    申请号:US236417

    申请日:1988-08-25

    申请人: Milo M. Vaniglia

    发明人: Milo M. Vaniglia

    IPC分类号: B29C70/38

    摘要: An improved fiber guidance system for a fiber placement machine where a fiber placement head is moved by a manipulator wrist with respect to a relatively stationary creel assembly, and a plurality of fiber redirect rollers are used, each having a caster-like mounting base, one roller assembly being mounted to the machine member with the creel assembly, and one member being mounted to the fiber placement head, so that a band of fibers is trained around the first and second redirect rollers under tension and the redirect rollers will swivel about their bases in accordance with spatial orientations of the placement head and in accordance with tension of fiber band, thereby maintaining approximately equal tension at the outer fibers at each side of the fiber band.

    摘要翻译: 一种用于纤维铺放机的改进的纤维引导系统,其中纤维放置头相对于相对固定的纱架组件由操纵器手腕移动,并且使用多个纤维重定向辊,每个具有脚轮状安装基座,一个 辊组件通过筒子架架组件安装到机器构件,并且一个构件安装到纤维放置头部,使得在张力下围绕第一和第二重定向辊围绕纤维缠绕纤维束,并且重定向辊将围绕其基部旋转 根据放置头的空间取向并根据纤维带的张力,由此在纤维带的每一侧的外纤维处保持大致相等的张力。

    Guide for placing reinforced yarns in preformed grooves in rubber
    47.
    发明授权
    Guide for placing reinforced yarns in preformed grooves in rubber 失效
    用于在橡胶中预先设置的格栅中放置加强纱的指南

    公开(公告)号:US3687783A

    公开(公告)日:1972-08-29

    申请号:US3687783D

    申请日:1970-06-24

    申请人: GRACE W R & CO

    发明人: ROSS WILLIAM C

    IPC分类号: B29C70/04 B29C70/68 B65H57/04

    CPC分类号: B29C70/384

    摘要: A yarn-laying guide designed to place reinforcing yarns in preformed screw threads in the rubber coated cylinder ply of a belt or printing blanket. A foot, preferably formed of polytetrafluoro ethylene, carries a number or teeth, each of which fits into the screw threads of the base ply. The foot is spring pressed. A yarn guide attached to the foot lays the reinforcing strands directly in the screw threads.

    Winding Head for at Least Two Fiber Strands, and Winding Method for Producing Fiber-Reinforced Components

    公开(公告)号:US20240149539A1

    公开(公告)日:2024-05-09

    申请号:US18549496

    申请日:2021-12-08

    申请人: DAIMLER AG

    摘要: A winding head includes a first supply spool for receiving a first fiber strand and a second supply spool for receiving a second fiber strand, an impregnation unit through which the first fiber strand and the second fiber strand can be guided for impregnation with liquid resin, a first deflection roller assigned to the first supply spool, and a second deflection roller assigned to the second supply spool. The winding head further includes a bundling roller, at which the first fiber strand and the second fiber strand can be combined to form a complete fiber strand upstream of the impregnation unit, and which is arranged downstream of and spaced apart from the first deflection roller and the second deflection roller. A spreading roller is arranged downstream of and spaced apart from the bundling roller to form two fiber spreading sections.