Cooling device for a 3D printer

Abstract

The invention discloses a cooling device for a 3D printer, comprising: an annular member, which includes an annular upper part and an annular lower part, the interior of the annular upper part has a hollow annular cavity, and the annular side wall of the annular upper part is symmetrically distributed with a plurality of upper air intakes The lower end is arranged with a plurality of annular upper air outlets, and a plurality of annular air passages are arranged inside, each annular air passage is an inverted trapezoid, and the upper end of the annular lower part has a plurality of lower air inlets. The air port is aligned with an upper air outlet, so that the annular cavity is in gas communication with a plurality of annular air passages; an air pump; wherein, the annular member surrounds the outer side of the extrusion nozzle. The annular cavity of the present invention acts as a buffer to reduce the vibration of gas ejection; the inner part of the annular lower part has a plurality of concentric annular air passages to ensure that the cooling range is an evenly distributed area centered on the extrusion nozzle, ensuring the Local raw materials are cooled to the same degree without causing vibrations to the extrusion nozzle.

Description

technical field [0001] The invention relates to a 3D printer technology, in particular to a cooling device for a 3D printer. Background technique [0002] In 3D printing technology, the extrusion equipment extrudes the raw material layer by layer according to the set path to build a three-dimensional model. In this process, as the raw material is extruded, it needs to be cooled at the same time, so that the raw material can be cooled and formed as soon as possible. . The working effect of the existing cooling device is not very satisfactory. One is that the cooling range is too large, resulting in different cooling degrees of raw materials in different positions. The other is that the 3D printer, especially the extrusion nozzle, will be caused by the working of the cooling device. Vibration, which in turn affects the uniformity of the raw materials extruded by the extrusion device, affects the quality of the three-dimensional model. Contents of the invention [0003] In ...

AI Technical Summary

Problems solved by technology

The working effect of the existing cooling device is not very satisfactory. One is that the cooling range is too large, resulting in different cooling degrees of raw materials at different positions. The other is that the 3D printer, especially the extrusion nozzle, will be caused by the working of the cooling device. Vibration, which in turn affects the uniformity of the raw materials extruded by the extrusion device, and affects the quality of the 3D model

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