Novel 3D printing heat-preservation nozzle structure

Abstract

The invention discloses a novel 3D printing heat-preservation nozzle structure. A through spray channel is formed in the middle of a spray head. The spray head comprises a feeding section, a heating section and a spraying-out section, and the feeding section, the heating section and the spraying-out section are sequentially arranged in the extension direction of the spray channel. A filament feeding guide pipe is mounted at one end of the feeding section and used for feeding filamentous consumables into the spray channel. A mounting through hole matched with the heating section is formed in the middle of a heating block, and the heating section is sleeved with the heating block. The heating block and the spray head are wrapped with heat-preservation materials. According to the optimally-designed novel 3D printing heat-preservation nozzle structure, the heating block and the spray head are wrapped with the heat-preservation materials, heat generated by heating of the heating block is effectively isolated in the heating block and the spray head, and thus the heat utilization rate is higher when the filamentous consumables are molten; and meanwhile, under the heat insulation effect of the heat-preservation materials, the situation that heat generated by the heating block is upwards conducted to the filament feeding guide pipe, and consequentially the filamentous consumables are molten before entering the spray head is avoided, the flow uniformity of the consumables is ensured, and the printing effect is improved.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a novel 3D printing thermal insulation nozzle structure. Background technique [0002] The 3D printer heats the nozzle through the heating tube, then melts the plastic filament, and finally extrudes it. The heating part is made of aluminum alloy, which conducts the heat of the heating tube to the nozzle. The existing technology generally directly exposes the aluminum alloy block in the air, resulting in a great waste of heat. Moreover, it will cause unstable fluctuations in the temperature of the nozzle, resulting in uneven melting of the consumables, ultimately reducing the spinning accuracy and reducing the printing effect. [0003] Other technologies use asbestos paper or high temperature resistant tape to wrap, but the heat insulation effect of asbestos paper and high temperature resistant tape is not particularly good. Contents of the invention [0004] In order to ...

AI Technical Summary

Problems solved by technology

The existing technology generally directly exposes the aluminum alloy block in the air, resulting in a great waste of heat

Moreover, it will cause unstable fluctuations in the temperature of the nozzle, resulting in uneven melting of consumables, which will eventually reduce the spinning accuracy and reduce the printing effect.

[0003] Other technologies use asbestos paper or high temperature resistant tape to wrap, but the heat insulation effect of asbestos paper and high temperature resistant tape is not particularly good

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