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Print head assembly, 3D printer and printing method

A 3D printer and print head technology, applied in the field of print head components, can solve problems such as inability to print, fast cooling speed, and large shrinkage, and achieve the effects of fast cooling speed, improved quality, and good molding quality

Active Publication Date: 2015-03-04
董一航
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the existing FDM (Fused deposition modeling, that is, melt extrusion molding, the same below) technology, its raw materials are mainly ABS and PLA wires, and for PP, PE and other types of raw materials and modified by adding other substances materials, such as adding wood fiber modified filaments, etc.) due to its relatively large shrinkage and fast cooling speed, it cannot achieve good printing results, or even print

Method used

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  • Print head assembly, 3D printer and printing method
  • Print head assembly, 3D printer and printing method
  • Print head assembly, 3D printer and printing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] refer to figure 1 , this embodiment provides a print head assembly, which includes a print head body 1 and a heating device 2, the heating device 2 is arranged on the thermal head of the print head body 1, and is used to print and form the previous pass The substrate is heated.

[0038] The print head assembly of this embodiment, through the heating device 2 fixed on the thermal head of the print head body 1, heats the uppermost layer of the printed model under the print head body, that is, the substrate printed and formed in the previous pass. , and the substrate is heated to a slightly melted state on the surface, so that the subsequently printed material is better fused with the substrate, thereby effectively solving the problem of plastic materials (and other similar materials) with relatively large shrinkage during the 3D printing process The problem of 3D printing edge warping can also solve the problem of printing raw materials with fast cooling speed, and can s...

Embodiment 2

[0045] This embodiment provides a 3D printer, which includes the print head assembly described in Embodiment 1.

Embodiment 3

[0047] This embodiment provides a kind of 3D printing method, it adopts the 3D printer described in embodiment 2, comprises the following steps:

[0048] S10, start the 3D printer, and start the air volume control system;

[0049] S20. Adjust the air volume and air temperature according to the difference of the material to be formed and the difference of the printing speed;

[0050] S30, start 3D printing until the formed material is formed into a product.

[0051] In this embodiment, preferably, the 3D printing method further includes a step S25 between the steps S20 and S30:

[0052] S25. Place a bottom plate. The material of the bottom plate is the same as the material to be formed. At this time, 3D printing can be performed on the bottom plate. Since the printed layer can be well integrated with the bottom plate, it is not easy to produce Warping problem.

[0053] In this embodiment, the step S20 is specifically:

[0054] S201. Set 3D printing parameters, and generate ...

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Abstract

The invention discloses a print head assembly, a 3D printer and a 3D printing method. The print head assembly comprises a print head body and a heating device, wherein the heating device is arranged on the heat head of the print head body and used for heating a base material which is printed to be formed at last pass. The print head assembly disclosed by the invention is capable of heating the uppermost layer of a printed model and heating the base material to a surface micro-melting state through the heating device to preferably fuse a subsequently printed material and the base material, thereby effectively solving the problem of edge warping of 3D printing of a plastic material with high contraction ratio in a 3D printing process and solving the problem of printing of a raw material with high cooling speed; the print head assembly disclosed by the invention can be used for outstandingly improving the forming quality of 3D printing and forming the filaments of raw materials of a PP type, a PE type and the like and the material modified through the addition of other substances, achieves preferable forming quality and can be applied to the 3D printing of a similar material.

Description

technical field [0001] The invention relates to a printing head assembly, a 3D printer and a printing method. Background technique [0002] At present, 3D printing technology is developing rapidly, but there is still a lot of room for progress in the adaptability of raw materials. For example, in the existing FDM (Fused deposition modeling, that is, melt extrusion molding, the same below) technology, its raw materials are mainly ABS and PLA wires, and for PP, PE and other types of raw materials and modified by adding other substances Materials, such as adding wood fiber modified filaments, etc.) due to its relatively large shrinkage and fast cooling speed, it cannot achieve good printing results, or even print. Contents of the invention [0003] The purpose of the present invention is to provide a printing head assembly, which can have a better 3D printing effect on printing raw materials such as PP, PE, and modified materials. [0004] The present invention also provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00
Inventor 郝秀敏董一航董成田
Owner 董一航
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