3D printing device

By employing a substrate rotation and powder spreading assembly fixed in the 3D printing device, powder is spread only between the substrate, the boss, and the forming cylinder, solving the problems of high cost and low efficiency of existing 3D printers, achieving cost reduction and efficiency improvement, while also improving the forming quality of thin-walled parts.

CN224476584UActive Publication Date: 2026-07-10HUBEI SANJIANG HANGTIAN JIANGBEI MASCH ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI SANJIANG HANGTIAN JIANGBEI MASCH ENG CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing 3D printers have high printing costs and low efficiency when printing thin-walled parts, especially with significant powder waste.

Method used

A 3D printing device is used, which includes a molding cylinder, a substrate, a boss, a powder spreading component, and a heat source component. By rotating the substrate and fixing the powder spreading component, powder is spread only on the surface of the space between the substrate and the boss and the molding cylinder, reducing the powder spreading area, reducing the amount of powder and the powder spreading time. The rotation of the substrate enables the rapid melting of the heat source component, reducing interference.

Benefits of technology

It reduced printing costs, improved printing efficiency, enhanced operational stability, increased powder utilization, reduced the risk of warping and cracking of thin-walled parts, and improved the dimensional accuracy and yield of molded parts.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224476584U_ABST
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Abstract

The application relates to the field of 3D printing technology and discloses a 3D printing device, which comprises a forming cylinder, a base plate, a boss, a powder laying assembly and a heat source assembly. The forming cylinder defines a forming cavity. The base plate is movably arranged in the forming cavity along a first direction, and the base plate can rotate relative to the forming cylinder around a rotation axis. The boss is arranged in the forming cavity, and the projection of the boss on the base plate along the first direction is located inside the edge of the base plate. The powder laying assembly is fixedly arranged relative to the forming cylinder, the projection of the powder laying assembly along the first direction is located between the boss and the forming cylinder, and the powder laying assembly is used for laying printing powder on the base plate. The heat source assembly is used for melting the printing powder to form a forming piece. The application has the beneficial effects of improving printing efficiency and reducing printing cost.
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