Annular powder feed nozzle
By incorporating an arc-shaped reflective surface and a detachable powder disperser within the annular powder feeding nozzle, combined with threaded connections and a cooling design, the problems of powder mixing uniformity and durability are solved, achieving stable powder delivery and a long nozzle life. This supports simultaneous feeding of filament and powder, as well as electrical insulation, thereby improving the process quality of additive manufacturing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING ENIGMA IND AUTOMATION TECH CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-24
AI Technical Summary
Existing annular powder feeding nozzles suffer from poor mixing uniformity when processing powders of various materials, resulting in concentrated distribution of the same type of powder, which affects the additive manufacturing effect, and also lacks durability and maintainability.
The nozzle features an arc-shaped reflective surface and a detachable powder disperser. The arc-shaped reflective surface expands the powder dispersion angle, while the detachable powder disperser enables uniform powder mixing and independent replacement. Combined with the threaded connection of the nozzle core and outer casing, maintenance is convenient. At the same time, the core structure forms a space for the filament feeding kit, supporting the simultaneous feeding of filament and powder. The cooling effect is improved through the cooling shell and flow-blocking baffle design.
It significantly improves powder dispersibility and mixing uniformity, ensures powder flow stability, extends nozzle life, and supports simultaneous filament and powder feeding and electrical insulation functions, thereby enhancing the process quality and safety of additive manufacturing.
Smart Images

Figure CN224543139U_ABST