Three-dimensional printing device and printing platform system thereof

Abstract

The invention relates to a three-dimensional printing device and a printing platform system thereof, and belongs to the technical field of rapid forming. The three-dimensional printing device comprises a control unit, a machine frame, a printing head and the printing platform system, wherein the printing head and the printing platform system are installed on the machine frame and controlled by thecontrol unit; the printing platform system comprises a mounting seat, a driving system and a printing platform, and the printing head can do a three-dimensional space movement relative to the mounting seat; the driving system comprises a rotating table arranged on the mounting seat through a rotating shaft, a rotating driver used for driving the rotating table to rotate around the rotating shaft,a sliding table arranged at the rotating table in a manner of being capable of sliding in the transverse direction, and a transverse driver used for driving the sliding table to do two-dimensional plane movement in the transverse direction; and the printing platform is installed on the sliding table through a posture adjusting mechanism used for adjusting the posture of the printing platform. Byarranging the printing platform system in the three-dimensional printing device, the printing quality of a three-dimensional curved piece can be effectively improved, and the three-dimensional printing device and the printing platform system can be widely applied to the field of rapid forming manufacturing.

Description

technical field [0001] The invention relates to the technical field of rapid prototyping, in particular to a three-dimensional printing device capable of effectively improving the printing quality of curved parts and a printing platform system for building the three-dimensional printing device. Background technique [0002] The 3D printing technology is based on the digital model of the product, and forms a three-dimensional object, that is, the target product, by slicing and layering the digital model, and superimposing materials layer by layer according to the result of the slicing and layering. Compared with the traditional manufacturing mode, 3D printing can form products with higher complexity. [0003] Existing 3D printing devices are mainly driven by X-Y-Z three-axis orthogonal to each other. For each slice layer of the digital model, the approximate contour is obtained according to the slice layer, and the printing of the contour and internal support is realized by u...

AI Technical Summary

Problems solved by technology

For curved parts with curved surface or curved shape features on the inner and outer surfaces, when printing the curved structure boundary, since the printing control method itself adopts the straight line approximation method, although the printing step size can be set very small, there is still a gap between the original design model and the original design model. There is a certain error

[0004] In addition, since the initial position cannot be changed after setting, there will be a "step effect" of a certain thickness in the height direction, which makes it difficult to significantly improve the 3D printing accuracy of curved parts

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