Exhaust method for 3D printing device

By setting direct exhaust and direct filtration airflow paths in the 3D printing equipment and switching the airflow path according to the printing material and working chamber status, the contradiction between exhaust efficiency and filtration effect is resolved, achieving efficient exhaust and cooling effects while reducing waste pollution.

WO2026153451A1PCT designated stage Publication Date: 2026-07-23SHENZHEN TUOZHU TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SHENZHEN TUOZHU TECH CO LTD
Filing Date
2026-01-15
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

In existing 3D printing equipment, it is difficult to balance exhaust efficiency and filtration effect. The presence of filter elements increases exhaust resistance, affecting the equipment's exhaust and cooling performance.

Method used

It adopts two independent exhaust air paths: a direct exhaust air path and a direct filtration air path. The air path is switched according to the state of the printing material and the working chamber. The direct exhaust air path is used to improve the exhaust speed and cooling efficiency, while the direct filtration air path is used to reduce the pollution of waste to the environment.

Benefits of technology

While ensuring filtration effectiveness, it improves the exhaust speed and cooling efficiency of 3D printing equipment, reduces waste pollution to the environment, and enhances the overall performance of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN2026072948_23072026_PF_FP_ABST
    Figure CN2026072948_23072026_PF_FP_ABST
Patent Text Reader

Abstract

An exhaust method for a 3D printing device. The method comprises: when an exhaust module receives a cooling exhaust instruction, controlling an exhaust mechanism to drive an airflow within a working chamber to flow along a direct exhaust airflow path; and when the exhaust module receives a cooling filtration instruction, controlling the exhaust mechanism to drive an airflow within the working chamber to flow along a direct filtration airflow path. In the present application, by providing two exhaust paths, i.e., the direct exhaust airflow path and the direct filtration airflow path, when there is a large amount of printing debris within the 3D printing device, the 3D printing device controls the airflow within the working chamber to flow along the direct filtration airflow path, so as to filter the discharged gas; when the 3D printing device requires rapid cooling, the 3D printing device controls the airflow within the working chamber to flow along the direct exhaust airflow path, thereby bypassing obstruction of the airflow by a filter element and improving exhaust and cooling efficiency.
Need to check novelty before this filing date? Find Prior Art