Air-cooling device for printing head of 3D (three-dimensional) printing machine

Abstract

The invention discloses an air-cooling device for a printing head of a 3D (three-dimensional) printing machine. The printing head is arranged at a slide rod of the printing machine in a sleeving manner by lug rings and axially slides; the air-cooling device is integrated on the printing head; a wire conveying mechanism is arranged in a seat housing cavity body of the printing head; a cooling fan aligned to the wire conveying mechanism is arranged on one axial side of the seat housing cavity body; a printing head nozzle is formed in the lower part of the seat housing cavity body; the seat housing cavity body is provided with air guide pipelines leading to the printing head nozzle. The air-cooling device improves heat dissipation of the printing head of the printing machine and enables occupied working space of the printing head to be further reduced, thereby being favorable for improving the portability of the folding-type 3D printing machine.

Description

technical field [0001] The invention relates to a printer, in particular to an air cooling device for a printing head of a 3D printer. Background technique [0002] A 3D printer is a printing tool that converts computer 3D design model data into a solid model. Currently, fused deposition modeling technology is the mainstream printing technology of 3D printers. The molding accuracy of this technology is not only affected by the transmission accuracy, but also affected by the material supply to a certain extent. Influenced by the accuracy, because the nozzle of the print head is very close to the feed cavity of the print head, the high temperature when the material melts is easily transmitted to the cavity of the print head through the shell of the print head. If the temperature of the cavity of the print head is too high, the printing material will be printed The feeding part of the head will start to soften, which will affect the feeding accuracy and affect the forming acc...

AI Technical Summary

Problems solved by technology

[0004] Patent Publication No. 203651217U discloses a multi-field heat dissipation device for 3D printers, which uses a fan to dissipate heat from the print head shell, but this heat dissipation method is only for the outer surface of the print head, not inside the cavity of the print head housing. Form a heat dissipation airflow. When the wall of the print head shell is thick, it is easy to cause uneven heat and cold inside and outside the print head shell, and overheating may still occur inside the print head

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