Vibrating-type anti-blocking printer spray head assembly

Abstract

The invention discloses a vibrating-type anti-blocking printer spray head assembly which comprises a spray head, a feed venturi tube, a heater and a threaded mechanism, and further comprises a vibrator, wherein a feed opening in the spray head is communicated with a discharge opening in the feed venturi tube; the heater is arranged outside the spray head and in tight contact with the heated area in the spray head; the spray head, the feed venturi tube and the heater are all connected fixedly through the threaded mechanism; an anti-leakage step is arranged the joint of the spray head and the feed venturi tube; the threaded mechanism used for fixedly connecting the spray head with the feed venturi tube is arranged in the inner wall of a cavity at the upper part of the spray head; a reverse threaded mechanism is correspondingly arranged on the outer wall of the feed venturi tube; a thread in the reverse threaded mechanism extends out of the feed opening in the spray head; the vibrator is arranged on the outer wall of the feed venturi tube, and drives a wire material to be separated from the feed venturi tube wall by triggering resonance of the feed venturi tube wall. The vibrating-type anti-blocking printer spray head assembly is high in anti-leakage and anti-blocking properties, solid and durable.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to an anti-leakage and anti-blocking nozzle assembly of a printer. Background technique [0002] At present, many 3D printers use "fusion deposition molding" technology. The so-called "fusion deposition molding" means that the whole process is to melt plastic in the nozzle and then form a thin layer by depositing plastic fibers. An important component of this technology is the printer nozzle. [0003] The nozzle assembly of the printer includes a nozzle, a feeding throat and a heater. During operation, the silk material enters the nozzle through the feeding throat and is heated and melted by the heating device. The feeding throat is usually made of stainless steel with slow thermal conductivity to prevent the filament from softening in advance, while the nozzle is made of brass with fast thermal conductivity to ensure that the filament melts quickly in the nozzle. [0004] The...

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned utility models all adopt the same technical means, that is, use a lubricating guide tube to prevent the nozzle from clogging; When the knot is congested at the outlet of the feed throat, the anti-slip effect of the guide pipe becomes limited, and the occurrence of blockage of the nozzle cannot be avoided.

[0008] Therefore, the existing printer nozzle assembly still has the problem of nozzle clogging, which needs further improvement

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