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Photocuring 3D printing machine based on FDM printing technology

A 3D printer and photo-curing technology, applied in the field of 3D printing, can solve the problems of high printing cost of SLA and poor printing accuracy of FDM, and achieve the effect of improving printing accuracy and printing quality, accurate printing layer accuracy, and improving printing accuracy

Pending Publication Date: 2017-11-24
SICHUAN COLLEGE OF ARCHITECTURAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a light-curing 3D printer based on FDM printing technology, which is mainly used to solve the problems of poor printing accuracy of existing FDM and high cost of SLA printing

Method used

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  • Photocuring 3D printing machine based on FDM printing technology
  • Photocuring 3D printing machine based on FDM printing technology
  • Photocuring 3D printing machine based on FDM printing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] combined with figure 1 , attached figure 2 , attached image 3 , attached Figure 4 As shown, a light-curing 3D printer based on FDM printing technology includes a light-filtering housing 25, an aluminum square tube 1, and the aluminum square tube 1 is fixedly connected to form a square printer frame. Any one of the printer frames composed of the aluminum square tube 1 The four corners of the outer surface are respectively fixed with two bearing housings 2 facing an included angle of 90 degrees, and an 8mm optical axis 3 is fixed between the two bearing housings 2 facing opposite to the same aluminum square tube, so Each of the 8mm optical axes 3 is equipped with a slide block 5, and the two ends of the 8mm optical axes 3 are provided with synchronous wheels 6 near the bearing housing 2, and the synchronous wheels 6 on the two mutually parallel 8mm optical axes 3 6 is provided with transmission belt 7, and described transmission belt 7 is connected with transmission...

Embodiment 2

[0037] In order to make the printing effect better and the printing model more accurate, according to the principle and structure of a light-curing 3D printer based on FDM printing technology described in Embodiment 1, combined with the attached figure 1 , attached figure 2 , attached image 3 attached, Figure 4 As shown, the outside of the printer is also provided with a filter housing 25. When the printer is working, the filter housing 25 covers the printer to isolate the external ultraviolet rays, so that the photosensitive curing material is not affected by the external light source, thereby affecting the printing quality. 10mm linear bearing 24, the 10mm linear bearing 24 is sleeved with a 10mm optical axis 15, the two ends of the 10mm optical axis 15 are fixed on the aluminum square tube 1, the 10mm optical axis 15 makes the substrate 17 fixed more firmly, the substrate 17 is more stable during the moving process, ensuring that the substrate 17 is always perpendicula...

Embodiment 3

[0039] In order to securely fix the photosensitive resin holding box 14 inside the printer without affecting the rotation of the screw rod 16, according to the principle and structure of a light-curing 3D printer based on FDM printing technology described in Embodiment 1, combined with the attached figure 1 , attached figure 2 , attached image 3 , attached Figure 4 As shown, a screw nut 23 integrally connected with the substrate is also provided at the connecting portion of the substrate 17 and the screw rod 16. The screw nut 22 improves the transmission accuracy between the substrate 17 and the screw rod 16, and the photosensitive resin storage box 14 is placed in the The part connected with the screw mandrel 16 is integrally connected with a bearing, and the inside of the bearing is provided with a sealing rubber ring. The screw mandrel 16 passes through the bearing and is sealed and connected with the photosensitive resin storage box 14. The maximum moving distance is ...

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Abstract

The invention relates to the field of 3D printing, and discloses a photocuring 3D printing machine based on an FDM printing technology. An FDM printing machine body and an SLA printing machine body are combined, an FDM nozzle is changed into a laser head, laser irradiates 0.01 mm of the photosensitive resin liquid surface, controlled by a base plate, in a photosensitive resin containing box, a curable material is irradiated by laser, a cured body with a single layer thickness is formed, then the base plate moves downwards by 0.01 mm, the photosensitive resin liquid surface is 0.01 mm away from the first cured body, laser irradiates again, a second-layer cured body is formed, a three-dimensional module needing to be printed is finally formed through stacking layer by layer, the advantages of two printing methods are combined by the photocuring 3D printing machine based on the FDM printing technology, some unnecessary parts and modules are omitted, the printing precision is improved compared with the FDM printing technology, cost is reduced compared with an SLA printing technology, and the SLA printing effect is achieved.

Description

technical field [0001] The present invention relates to the field of 3D printing, in particular to a 3D printer, specifically a light-curing printer based on FDM printing technology. Background technique [0002] The FDM (Fused Deposition Modeling) process fused deposition manufacturing process was successfully developed by American scholar Scott Crump in 1988. FDM materials are generally thermoplastic materials, such as wax, ABS, nylon, etc. Feed in filament form, the material is heated and melted in the nozzle, the nozzle moves along the section profile of the part and the filling track, and at the same time extrudes the molten material, the material solidifies rapidly and coagulates with the surrounding materials. FDM printing has its inherent disadvantages: the surface of the molded part has obvious stripes and is relatively rough, which is not suitable for the application of high-precision fine small parts. The entire section is scanned and coated, which takes a long t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/118B29C64/124B29C64/20B29C64/255B29C64/268B33Y30/00
CPCB33Y30/00
Inventor 文鑫
Owner SICHUAN COLLEGE OF ARCHITECTURAL TECH
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