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A kind of continuous fiber composite material additive manufacturing equipment and method through interlayer

A continuous fiber and composite material technology, applied in the field of continuous fiber manufacturing, can solve problems such as weak performance between layers, and achieve the effect of less processing technology restrictions and simple equipment operation

Active Publication Date: 2022-07-08
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a continuous fiber composite material additive manufacturing equipment and method for interlayer penetration, which is used to solve the problem that the fiber composite material cannot form continuous fibers perpendicular to the interlayer direction in the prior art, resulting in weak interlayer performance. question

Method used

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  • A kind of continuous fiber composite material additive manufacturing equipment and method through interlayer
  • A kind of continuous fiber composite material additive manufacturing equipment and method through interlayer
  • A kind of continuous fiber composite material additive manufacturing equipment and method through interlayer

Examples

Experimental program
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Effect test

no. 1 example

[0109] The distance between the end of the guide needle close to the nozzle and the forming substrate is greater than the preset thickness of the composite fiber wire that needs to be printed and laid, the nozzle only moves in the horizontal direction, and the forming substrate is fixed.

no. 2 example

[0111] The distance between the end of the guide needle close to the nozzle and the forming substrate is greater than the diameter of the composite fiber wire and less than a preset distance; the nozzle only moves in the horizontal direction, and the guide needle fixing plate is used for The guide needle is fixed; each time a layer of the composite fiber wire is laid on the nozzle, the forming substrate moves downward by a distance of the diameter of the composite fiber wire.

[0112] In the interlayer continuous fiber composite material additive manufacturing equipment of the embodiment of the present invention, by setting the guide pin fixing plate, one end of the guide pin can be fixed, and through the control of the second driving structure, the guide pin and the The forming substrate moves relatively, so as to avoid equipment failure or damage caused by interference between the spray head and the guide pin during the operation of the equipment.

[0113] Optionally, the in...

no. 3 example

[0116] The distance between the end of the guide needle close to the nozzle and the forming substrate is greater than the diameter of the composite fiber wire and less than a preset distance; the forming substrate is fixed, and each layer of the nozzle is laid on the nozzle. The composite fiber wire, the guide needle fixing plate drives the guide needle to move up the diameter of the composite fiber wire through the third driving structure, and the nozzle drives the nozzle upward through the first driving structure. The distance by which the diameter of the composite fiber wire is moved.

[0117] In the interlayer continuous fiber composite material additive manufacturing equipment of the embodiment of the present invention, by setting the third driving structure, the guide pin fixing plate can move in the vertical direction, so as to avoid the nozzle and the nozzle during the operation of the equipment. The guide pins interfere and cause equipment failure or damage.

[0118]...

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Abstract

The invention provides an interlayer continuous fiber composite material additive manufacturing device and method. The device comprises: a wire material transport structure for transporting a first fiber wire; a first material liquid pool for accommodating molten resin material; a spray head, mounted on the first driving structure, and one end of the first fiber wire penetrates the first material liquid pool and is inserted into the spray head; a forming substrate is arranged at intervals from the spray head; The forming substrate is provided with a plurality of through holes arranged in an array, each of the through holes is respectively provided with a guide needle, and each of the guide needles is connected with a second fiber wire; the second material liquid pool , for accommodating molten resin material, and one end of each second fiber wire away from the guide needle is infiltrated into the resin material of the second material liquid pool. The solution of the present invention solves the problem that the fiber composite material cannot form continuous fibers perpendicular to the interlayer direction, resulting in weak interlayer performance.

Description

technical field [0001] The invention relates to the technical field of continuous fiber manufacturing, in particular to a continuous fiber composite material additive manufacturing device and method that penetrates between layers. Background technique [0002] The development of 3D printing technology has matured, and the additive manufacturing technology of continuous fiber composite materials is also gradually developing, but the problem of weak interlayer performance has not been well solved. [0003] Researchers have proposed to enhance interlayer performance by laying short fibers between layers, in-situ woven additive manufacturing, interlayer implantation, and pre-fabricated microrod reinforcement, which effectively solves the problem of no Z-direction (perpendicular to the interlayer) between layers. The direction of the fiber caused by the weak performance problem. However, due to the process method and the problems of the deflection and stiffness of the micro-rod,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/20B29C64/241B29C64/295B29C64/314B29C64/165B33Y30/00B33Y10/00B33Y40/10
CPCB29C64/20B29C64/241B29C64/295B29C64/314B29C64/165B33Y30/00B33Y10/00B33Y40/10Y02P10/25
Inventor 单忠德刘晓军刘检华
Owner BEIJING INSTITUTE OF TECHNOLOGYGY