3D printer

Abstract

A 3D printing device characterized in that the 3D printing device comprises a clamping gear assembly, a lifting assembly, a lifting platform assembly, a mold platform, a clamping drive assembly, and a nozzle assembly, wherein the lifting assembly comprises several screw rods, the clamping gear assembly is in drive connection with the lifting assembly to rotate the screw rods, the clamping gear assembly is driven by a drive belt and the drive belt is designed to be in a tensioned state, the lifting platform assembly is in drive connection with the lifting assembly, the mold platform is connected to the lifting platform assembly, the screw rods rotate to drive the lifting platform assembly to raise and lower the mold platform, and the clamping drive assembly is in drive connection with the nozzle assembly to drive the nozzle assembly.To achieve a horizontal displacement relative to the mold platform, the clamping drive assembly is driven by a drive belt, and the drive belt is configured to be in a tensioned state.

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