3D printing spray head

Abstract

The invention provides a 3D printing spray head. The 3D printing spray head comprises a nozzle and a heating device surrounding the outer wall of the nozzle, and further comprises a material pipe capable of adjusting the shape and size of an extruded material, and the material pipe capable of adjusting the shape and size of the extruded material and a through hole of the nozzle are in butt joint to form a consumable conveying cavity. The 3D printing spray head has the beneficial effect that the cross section shape and size of an extruded printing material can be adjusted as required. Accordingto the 3D printing spray head equipment, the extrusion speed of the extruded printing material can be adjusted as required, and the phenomenon that before a consumable enters the through hole of thenozzle, pipe expansion and even pipe blockage occur due to heat conduction of the heating device and a heat dissipation device can be well eliminated; and meanwhile, the pipe expansion and blockage problem is solved, thus, the 3D printing spray head can contain consumables made of multiple materials, the 3D printing consumable selection range is broadened.

Description

technical field [0001] The invention belongs to the field of 3D advanced manufacturing, and in particular relates to a 3D printing nozzle. Background technique [0002] At present, the consumables of the existing 3D printing nozzles are introduced by stainless steel through holes. For example, there is a stainless steel through hole for introducing consumables in the hollow of the fixing seat. After the 3D printing consumables are introduced through the stainless steel through holes, they enter the heated nozzle and melt into glue. shape. In order to achieve a good heat dissipation effect, generally 3D printing equipment is equipped with a fan device. Later, with the development of technology, in order to reduce the weight of the pen, reduce the size of the pen, and eliminate the noise caused by the fan, 3D printing equipment gradually adopts integrated The heat dissipation method of the heat sink replaces the heat dissipation method of the fan. Generally, the heat sink is ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defect that the shape and size of the materials extruded by the current 3D printing equipment cannot be adjusted according to the needs and to solve the problem of the expansion tube blockage of the consumables in the through hole before being introduced into the nozzle

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