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Patent Agency Ranking
1.发明公开公开(公告)号：US20240286315A1
公开(公告)日：2024-08-29
申请号：US18572780
申请日：2022-07-23
Inventor： Zhongde SHAN , Congze FAN , Yiwei CHEN , Jinghua ZHENG , Wenzhe SONG , Jingxuan WANG
IPC: B29B11/10 , B29B11/16 , B29B15/14 , B29C64/314 , B33Y40/10
CPC classification number: B29B11/10 , B29B11/16 , B29B15/14 , B29C64/314 , B33Y40/10
Abstract: A composite filament melt impregnation device with an automatic lifting channel for additive manufacturing includes a mechanical lifting device, a heating device, a curved resin impregnation channel, a filament guide block, a single screw extruder, a replaceable combination die nozzle, and a resin riser. The composite filament melt impregnation device can significantly improve the efficiency of replacing filaments and treating broken filaments in a forming process of continuous fiber filaments, reduce the operation difficulty of a production process, and ensure the safety of operators. The design of the resin riser can achieve slight dynamic adjustment of pressure in a melt cavity in the production process, improve the stability of product quality, and ultimately achieve continuous production and rapid replacement of high-performance continuous fiber composites.
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公开(公告)号：US20240367361A1
公开(公告)日：2024-11-07
申请号：US18777503
申请日：2024-07-18
Inventor： Wenzhe SONG , Congze FAN , Jinghua ZHENG , Yiwei CHEN , Jingxuan WANG , Zhongde SHAN
IPC: B29C48/05 , B29C48/28 , B29C48/88 , B29C48/885 , B29K71/00 , B29K105/08 , B29K307/04 , B33Y70/10
Abstract: An on-orbit composite filament forming device for space 3D printing includes a constant tension unwinding module, a replaceable resin filament rotary wrapping module, a melt preheating chamber, a curved channel impregnation chamber, a variable aperture resin recovery device, a heat protective housing, a convective cooling device, a traction device, and a winding device. The replaceable resin filament rotary wrapping module wraps a resin filament on a surface of a carbon fiber by circumferential rotation and is provided with an active unwinding reel placed on a circular rail centered on the carbon fiber; the melt preheating chamber is used for melting resin to wrap the surface of the fiber, and is equipped with a lifting device for automatic opening and closing; the curved channel impregnation chamber is formed with a wedge-shaped high-pressure impregnation zone by mutual extrusion of upper and lower pressure blocks, thereby improving the quality of fiber impregnation.
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公开(公告)号：US20240227287A1
公开(公告)日：2024-07-11
申请号：US18552909
申请日：2022-07-23
Inventor： Zhongde SHAN , Congze FAN , Yiwei CHEN , Jinghua ZHENG , Wenzhe SONG , Yaxing SONG
IPC: B29C64/209 , B29C64/118 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02
CPC classification number: B29C64/209 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29C64/118
Abstract: A nozzle-replaceable printing head for continuous fiber printing and a printing method are provided. The printing head includes a fixed bracket, a wire feeding module located at an upper part of the structure, an upper guide pipe, a shearing module located at a middle part of the structure, a lower guide pipe, a heat dissipation sleeve, a throat pipe, a heating coil, and a nozzle module located at a bottom of the structure, where a continuous fiber reinforced thermoplastic resin matrix pre-impregnated composite wire coaxially penetrates through the other side of the printing head from top to bottom and is fed for printing. An adjustment groove with scales is configured to standardize adjustment on clamping and feeding states of pre-impregnated composite wires of different specifications.
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公开(公告)号：US20240367366A1
公开(公告)日：2024-11-07
申请号：US18776250
申请日：2024-07-18
Inventor： Jinghua ZHENG , Yiwei CHEN , Congze FAN , Wenzhe SONG , Yaxing SONG , Zhongde SHAN
Abstract: A multi-arm forming device for space on-orbit composite braiding is provided. Through the rotary movement of a combination of circularly arranged mechanical arm-type laying apparatuses relative to a mold, a plurality of hot press laying heads are controlled together to implement high-efficiency and high-freedom winding and braiding formation of a composite member. The retraction and expansion deformation of the gasbag mold is achieved by inflating and deflating based on design, and the overall device is lightened by switching its structural volume in an operating/non-operating state, thereby achieving the purpose of facilitating the lift-off of rockets and the demolding, repair and weight reduction of winding and braiding structural members for operation in space. Additionally, gas in a gasbag can be used as emergency kinetic energy for the movement and attitude adjustment of the overall device in space. High-quality and efficient winding and braiding formation of composites in space are achieved ultimately.
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5.发明公开公开(公告)号：US20240227307A1
公开(公告)日：2024-07-11
申请号：US18520581
申请日：2023-11-28
Inventor： Congze FAN , Wenzhe SONG , Zhongde SHAN , Yiwei CHEN , Jinghua ZHENG , Yaxing SONG
IPC: B29C64/393 , B33Y50/02 , G06F30/10
CPC classification number: B29C64/393 , B33Y50/02 , G06F30/10 , G06F2113/10
Abstract: A path planning method based on dynamic contour offset discretization and for spatial curved-surface printing is provided. Firstly, transversal equal slicing is carried out on a target model, and single/double contours are labeled; secondly, central slicing is carried out on the model, curvature contours are discretized, feature values of contour offsets of slice layers are calculated on the basis of a surface contour curvature of the model, and dynamic offset filling for inner contours of horizontal slices is realized; then longitudinal equal slicing is carried out on the slices, and spatial discrete points of the target model are obtained; and finally, virtual double contours are constructed for the single contours, and labeling processing for the discrete points is carried out, so that a discretized three-dimensional spatial equidistant lattice of the target model is obtained.
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