3D skin-core structure composite material printer

Abstract

The invention discloses a 3D skin-core structure composite material printer. The printer comprises a nozzle component and a driving component, wherein the nozzle component comprises a core layer material feeding part, a skin layer material feeding part, a skin layer and core layer material coating extrusion part; the core layer material feeding part comprises a first stepping motor arranged abovethe nozzle component; an output shaft of the first stepping motor is connected with an inner hole of a first feeding roller; a wire material of a core layer is clamped and fed by the outer edge of thefirst feeding roller into the nozzle component; the skin layer material feeding part comprises a second stepping motor and a second feeding roller; the second stepping motor is arranged on one side of the nozzle component; an output shaft of the second stepping motor is connected with an inner hole of the second feeding roller; a wire material of a skin layer is clamped and fed by the outer edgeof the second feeding roller into the nozzle component; the skin layer and core layer material coating extrusion part comprises a nozzle core die; the nozzle core die penetrates through a sizing sleeve and is connected with the upper end face of the sizing sleeve through screws; a nozzle and the sizing sleeve are blocked by a nozzle cover plate; and the nozzle cover plate is connected with the lower end face of the sizing sleeve through screws.

Description

technical field [0001] The invention relates to the technical field of 3D printers, in particular to a 3D skin-core structure composite material printer. Background technique [0002] 3D printing is to form the required parts by layer-by-layer accumulation of materials, which is called "additive manufacturing technology". It is based on digital three-dimensional CAD model files, and stacks specific materials such as filaments and sheets Molding, this molding method has the advantages of low manufacturing cost and short production cycle. However, at present, 3D printers can only print products with a single material, such as PLA, ABS, PE, etc., and the adhesion between layers is not good during the layer-by-layer accumulation of materials, resulting in poor mechanical properties such as strength and stiffness of printed products. Therefore, the products printed by existing 3D printers are often used for appearance display, models, handicrafts, etc., and cannot be well used i...

AI Technical Summary

Problems solved by technology

However, at present, 3D printers can only print products with a single material, such as PLA, ABS, PE, etc., and the adhesion between layers is not good during the layer-by-layer accumulation of materials, resulting in poor mechanical properties such as strength and stiffness of printed products. Therefore, products printed by existing 3D printers are often used for appearance display, models, handicrafts, etc., and cannot be used well in the engineering field.

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