Spray head device for three-dimensional printing

Abstract

The invention relates to the technical field of Internet of Things identification, and discloses a spray head device for three-dimensional printing. The spray head device comprises a feeding through pipe, the top of the feeding through pipe is fixedly connected with a feeding hopper, a discharging port of the feeding hopper is in sealed connection with a feeding port of the feeding through pipe, the outer surface of the feeding hopper is fixedly connected with a regulation and control platen, the bottom of the regulation and control platen is fixedly connected with the top of a feeding throughpipe, and the back face of the feeding through pipe is fixedly connected with a heat dissipation grid. According to the spray head device for three-dimensional printing, heat of the feeding through pipe inside a heat dissipation conical ring is cooled, so that the situations that a raw material begins to expand after being heated when not located in a heat preservation ring area and consequentlythe resistance of raw material sliding is increased are effectively reduced, meanwhile heat is transmitted to the outer side of a heat preservation ring to facilitate keeping of the temperature of theouter side of a heating ring, the situation that the energy loss is increased due to continuous heating of the heating ring is avoided, effective utilization of surplus heat on the spray head devicefor three-dimensional printing is improved, energy loss is reduced, and the printing cost is reduced.

Description

technical field [0001] The invention relates to the technical field of marking of the Internet of Things, in particular to a spray head device for three-dimensional printing. Background technique [0002] Ordinary printers used in daily life can print flat objects designed by computers, and the so-called three-dimensional printers are basically the same as ordinary printers, but the printing materials are somewhat different. The printing materials of ordinary printers are ink and paper, while three-dimensional printers are equipped with metal Different "printing materials" such as ceramics, plastics, sand, etc. are real raw materials. After the printer is connected to the computer, the "printing materials" can be superimposed layer by layer through computer control, and finally the blueprint on the design book becomes 3D printing is a way of rapid prototyping technology, also known as additive manufacturing. It is based on digital model files, using powdered metal or plastic...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a nozzle device for three-dimensional printing, which improves the effective utilization of surplus heat on the nozzle device for three-dimensional printing, reduces energy consumption, reduces printing costs and improves the working rate of the nozzle device for three-dimensional printing, ensuring The advantages of the appearance and texture of printed items are solved, and the existing nozzle device for 3D printing is solved. When the raw material enters the feeding pipeline, the heating ring at the bottom melts it. Therefore, when the raw material does not reach the heating ring area, Due to heat conduction, the surrounding temperature of the raw material is high, and the position closer to the heating ring area will cause it to expand under heat, and then increase the resistance of the raw material to slide down. At this time, it is necessary to dissipate heat through the heat sink. It is necessary to maintain a relative temperature for the heating ring, so energy consumption is required in both the cooling area and the heating area, resulting in increased production costs, and the energy between the two cannot be used to complement each other, and the 3D printing nozzle is heating the raw material until it is melted state, the raw material in molten state is extruded from the nozzle to the corresponding printed part through the pushing device. Although the raw material is pushed down by the pushing device, when the raw material is heated to the molten state, due to its thermal expansion , to increase the friction between it and the pipe, and the existing 3D printing nozzle is convenient for placing the raw material into the pipe, and the gap between the raw material and the pipe is matched, which will cause the part of the molten raw material in contact with the pipe to flow back, and when it Affected by the outer heat dissipation structure, the molten raw material that flows back is also a raw material that has a relatively high friction with the pipeline, which will reduce the downward sliding of the molten raw material during the cooling process, and even cause the problem of clogging the print head

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