Nozzle structure for 3D printing

Abstract

The invention discloses a nozzle structure for 3D printing, and belongs to the technical filed of 3D printing. The nozzle comprises an installation seat, a vertically-arranged nozzle body, and a heating sleeve, which is sleeved on the nozzle body, wherein the nozzle body stretches out the heating sleeve. The external surface of the nozzle body and the internal surface of the heating sleeve are both provided with threads, wherein the threads are matched. The top surface of the heating sleeve is provided with heating blind holes, which are evenly distributed in the circumferential direction, a heating element is arranged in each heating blind hole; the external round surface of the heating sleeve is covered by a box, and the internal wall of the box is provided with a thermal insulation layer. The nozzle body and the box are both arranged under the installation seat and are detachably connected to the installation seat; and two sides of the installation seat are both provided with an illumination lamp. In the provided nozzle structure, the heat can be more easily conveyed to the nozzle body, the heat transmission is even, no extra thermal insulation structure is required, the heating and thermal insulation are stable, and the appearance is beautiful.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a nozzle structure for 3D printing. Background technique [0002] 3D printer, also known as three-dimensional printer, is a kind of cumulative manufacturing technology, that is, a machine of rapid prototyping technology. It is based on a digital model file, using special wax, powdered metal or plastic and other bondable materials. Print layers of adhesive material to create three-dimensional objects. At this stage 3D printers are used to manufacture products. The technology of constructing objects by printing layer by layer. The principle of a 3D printer is to put data and raw materials into the 3D printer, and the machine will build the product layer by layer according to the program. [0003] The structure of the nozzle of the 3D printer generally has a heating block for heating the filament, but the temperature distribution in the heating block is uneven, resulting in u...

AI Technical Summary

Problems solved by technology

[0003] The structure of the nozzle of the 3D printer generally has a heating block for heating the filament, but the temperature distribution in the heating block is uneven, resulting in uneven melting of the filament in the nozzle, which appears lumpy and affects the effect, and some use insulation cotton Wrap the nozzle and wrap the high temperature resistant tape on the outside, which will affect the appearance, and if the insulation cotton is not completely wrapped, it will easily cause the temperature to rise slowly and the insulation will be unstable

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