Pre-infiltration continuous fiber twin-screw extrusion type additive manufacturing printing nozzle
A twin-screw extrusion and additive manufacturing technology, used in manufacturing tools, additive manufacturing, additive processing, etc., can solve problems such as poor printing effect of fiber-reinforced composite materials, save costs and time, and improve overall performance and efficiency. improved effect
Active Publication Date: 2021-06-08
JILIN UNIV
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Problems solved by technology
[0007] The invention provides a pre-soaked continuous fiber twin-screw extrusion type additive manufacturing printing nozzle to solve the problems that existing FDM printers need to pre-prepare filaments before printing and the printing effect of fiber-reinforced composite materials is poor
Method used
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[0029] It includes a support structure 1, a fiber feed mechanism 2, a twin-screw resin feed mechanism 3 and a mixing chamber 4, wherein: the plasma generator 202 of the fiber feed mechanism 2 is fixedly connected to the upper part of the support plate 101 of the support structure 1, and the fiber feed The fan 205 of the wire mechanism 2 is fixedly connected with the fan bracket 103 of the support structure 1, the motor frame 211 and the cutting device 207 of the fiber feed mechanism 2 are fixedly connected with the lower part of the support plate 101 of the support structure 1 respectively, and the pre-installation of the fiber feed mechanism 2 The infiltration device 203 is screwed to the twin-screw resin feeding mechanism 3 through a resin passage valve 308, and the mixing chamber 4 is connected to the twin-screw resin feeding mechanism 3 through a conduit.
[0030] The structure of the supporting structure 1 in the present invention is: the fixing plate 102 is installed at t...
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Abstract
The invention relates to a pre-infiltration continuous fiber twin-screw extrusion type additive manufacturing printing nozzle and belongs to the field of additive manufacturing. A plasma generator of a fiber feeding mechanism is fixedly connected with the upper part of a supporting plate of a supporting structure, a fan of the fiber feeding mechanism is fixedly connected with a fan bracket of the supporting structure, a motor frame and a cutting device of the fiber feeding mechanism are fixedly connected with the lower part of the supporting plate of the supporting structure, a pre-infiltration device of the fiber feeding mechanism is in threaded connection with a twin-screw resin feeding mechanism through a resin channel valve, and a mixing cavity is connected with the twin-screw resin feeding mechanism through a guide pipe. The pre-infiltration continuous fiber twin-screw extrusion type additive manufacturing printing nozzle has the advantages that the nozzle is of a novel structure and capable of printing a fiber reinforced composite, so that the printing range of printed parts is wider, and the quality and the performance of final components are improved; and using functions of printed products can meet more requirements, and the period from raw material strengthening to the forming process is shortened, so that the forming efficiency of the components can also be improved, and the nozzle is wide in application prospect.
Description
technical field [0001] The invention belongs to the technical field of additive manufacturing of special engineering plastics, in particular to a printing nozzle for pre-soaked continuous fiber twin-screw extrusion type additive manufacturing. Background technique [0002] With the rapid development of manufacturing industry and economy in today's world, high-performance special engineering plastics have been widely used in more and more fields. High-performance special engineering plastics refer to a class of engineering plastics that have high comprehensive performance and can work for a long time above 150 degrees Celsius, so they are also called heat-resistant engineering plastics. Special engineering plastics have good flame retardancy, good coating processability (melt extrusion without adding solvent), good peel resistance, good wear resistance, excellent biocompatibility and radiation resistance In addition, this kind of material has a series of advantages such as l...
Claims
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IPC IPC(8): B29C64/118B29C64/314B33Y40/10
CPCB29C64/118B29C64/314B33Y40/10
Inventor 吴文征曲涵张伟李子涵赵继
Owner JILIN UNIV