Extrusion device for 3D printer, and cooling mechanism and cooling method thereof

A technology of 3D printers and extrusion devices, applied in 3D object support structures, additive manufacturing, manufacturing tools, etc., can solve the problems of reduced material strength, limited cooling effect, and affecting printing quality, so as to improve printing quality and cooling effect , Improve the effect of printing quality

Active Publication Date: 2018-01-26
TECO IMAGE SYST
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  • Claims
  • Application Information

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Problems solved by technology

If the temperature of the forming space is slightly lower than the thermal deformation temperature of the hot-melt material, the temperature of the adjacent ratchet is close to the thermal deformation temperature of the material. At this time, the linear hot-melt material is prone to softening, which reduces the strength of the material, and the ratchet As a result, the friction between the hot-melt material and the hot-melt material is changed, causing the material to not be extruded

Method used

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  • Extrusion device for 3D printer, and cooling mechanism and cooling method thereof
  • Extrusion device for 3D printer, and cooling mechanism and cooling method thereof
  • Extrusion device for 3D printer, and cooling mechanism and cooling method thereof

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[0034] Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different aspects, all of which do not depart from the scope of the present invention, and the descriptions and drawings therein are essentially used to illustrate it, rather than being structured. Limit the invention.

[0035] See figure 1 , figure 2 and image 3 ,among them figure 1 It is a schematic diagram showing the structure of the extrusion device and the cooling mechanism of the three-dimensional printer according to the preferred embodiment of the present invention, figure 2 It is a schematic diagram showing the structure of the extrusion device and the cooling mechanism of the three-dimensional printer according to another embodiment of the present invention, image 3 It is a schematic diagram showing the structure of the extrusion device a...

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Abstract

The invention discloses an extrusion device for a 3D printer, and a cooling mechanism and a cooling method thereof. The extrusion device for the 3D printer comprises a shell, a nozzle, a ratchet, a pressurizing idler wheel and the cooling mechanism, wherein the nozzle is connected with the shell; the ratchet is disposed in the shell; the pressurizing idler wheel is arranged adjacent to the ratchet; the ratchet and the pressurizing idler wheel jointly clamp a hot melt material and guide the hot melt material for extrusion through the nozzle; the cooling mechanism comprises an air pump and a honeycomb duct; and the honeycomb duct is partially arranged in the shell and is connected with the air pump to guide air drawn by the air pump to flow into the shell through the honeycomb duct, so ambient temperature in the shell can be reduced. Therefore, the technical effect of effective improvement of cooling effect and printing quality can be achieved through arrangement of the diversion type cooling mechanism.

Description

technical field [0001] The invention relates to an extrusion device of a three-dimensional printer, in particular to an extrusion device of a three-dimensional printer, a cooling mechanism and a cooling method thereof. Background technique [0002] In recent years, with the popularization of 3D printing (3D printing), also known as additive manufacturing (AM), in which fused deposition modeling (Fused Deposition Modeling, FDM) additive manufacturing is widely used in many machines, The main principle of this type of laminated manufacturing is to use a three-axis machine tool with an extrusion nozzle to extrude plastic or other materials. Most extrusion nozzles use ratchets to clamp the material wire, and use friction to drive the linear hot-melt material to The nozzle is pushed forward and heated to a certain temperature at the nozzle end, which can melt the linear hot-melt material into a molten state, spray thin lines through the small nozzles, and fill the thin lines in t...

Claims

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Application Information

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IPC IPC(8): B29C64/118B29C64/20B33Y30/00B33Y40/00
Inventor 周根德陈鼎钧张昱仁
Owner TECO IMAGE SYST
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