A 3D printer nozzle and a 3D printer having the same

A technology of 3D printers and nozzles, applied in the field of 3D printing, can solve problems such as complex structures, and achieve the effect of simple structures

Active Publication Date: 2021-10-19
SHENZHEN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above structure is more complex

Method used

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  • A 3D printer nozzle and a 3D printer having the same
  • A 3D printer nozzle and a 3D printer having the same
  • A 3D printer nozzle and a 3D printer having the same

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Embodiment Construction

[0037] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0038] A cross-sectional view of the first embodiment of the nozzle of the 3D printer of the present invention can be found in figure 1 .

[0039] A 3D printer nozzle, comprising a feed pipe 1 and a nozzle 2, the feed pipe 1 and the nozzle 2 are connected, the outer wall of the feed pipe 1 is provided with a heating device 3, the nozzle 2 has a double-layer structure, and the inner For layer 21 and outer layer 22, the coefficient of expansion of the material of the inner layer 21 is greater than that of the material of the outer layer 22. Wherein, a bracket 6 is provided outside the outer tube 1 for fixing the spray head.

[0040] After printing, when the printing material of nozzle 2 cools down sharply, it solidi...

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PUM

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Abstract

The invention relates to the technical field of 3D printers, a 3D printer nozzle and a printer having the same, comprising a feeding pipe and a nozzle, the feeding pipe and the nozzle are connected, and an outer pipe wall of the feeding pipe is sleeved There is a heating device, the nozzle is a double-layer structure, including an inner layer and an outer layer, and the expansion coefficient of the inner layer material is greater than the expansion coefficient of the outer layer material. After printing, when the printing material of the nozzle cools down sharply, it solidifies instantly; while the nozzle is a double-layer structure, the expansion coefficient of the inner layer material is greater than that of the outer layer material, so that the deformation of the inner layer due to cooling is greater than that of the outer layer. Make the nozzle exert a squeezing force on the solidified printing material, so that the solidified printing material and the inner wall of the inner layer are loosened. When the printing material is recovered, it retracts into the feeding tube together. After the printing is completed, the nozzle is automatically squeezed. The cured printing material does not need to add additional mechanisms and control components, and the structure is simple.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a nozzle of a 3D printer and a 3D printer having the same. Background technique [0002] 3D printing technology. D printing), which is a kind of rapid prototyping technology, is a technology based on digital model files, using bondable materials such as powdered metal or plastic, to construct objects by layer-by-layer printing. In the past, it was often used to make models in the fields of mold manufacturing and industrial design, and is now gradually being used in the direct manufacture of some products. In particular, some high-value applications (such as pulp joints or teeth, or some aircraft parts) have already used this technology to print Licheng parts. 3D printing is the same as laser forming technology, which uses layered processing and superimposed molding to complete 3D physical printing. [0003] However, when using 3D printing technology to manufacture rubber materials, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/209B29C64/295B33Y30/00
CPCB33Y30/00B29C64/209B29C64/295
Inventor 何颂华
Owner SHENZHEN POLYTECHNIC
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