3D printing device suitable for multi-material workpieces

Abstract

The invention discloses a 3D printing device suitable for multi-material workpieces. The 3D printing device comprises three-dimensional moving structures, a workbench, a rotary plate type sprayer switching device, a feeding system and a control system. The three-dimensional moving structures comprise the X-axis moving structure, the Y-axis moving structure and the Z-axis moving structure. The workbench is fixedly connected with the X-axis moving structure and is driven by the X-axis moving structure and the Y-axis moving structure to perform horizontal motion and driven by the Z-axis moving structure to perform vertical motion. The rotary plate type sprayer switching device comprises a rotary plate and a motor; multiple segmented screw rod sprayer devices are mounted on the rotary plate in the circumferential direction, and the rotary plate is driven by the motor to rotate for switching. The feeding system is used for providing pulp for the segmented screw rod sprayer devices. The control system is used for controlling the movement of the three-dimensional moving structures and the rotary plate and extrusion of the pulp in the segmented screw rod sprayer devices. According to the 3D printing device, the selecting range of processing materials is expanded, and the 3D printing device has the advantages of being high in work efficiency, low in production cost and the like, and can effectively reduce material hysteresis and flowing phenomena.

Description

technical field [0001] The invention belongs to the field of 3D printing devices, and more specifically relates to a 3D printing device suitable for multi-material workpieces. Background technique [0002] 3D printing technology is an emerging forming method. Its core is to convert the 3D model slice processing of the required shaped workpiece into a combination of 2D cross-sectional profiles, and complete the workpiece manufacturing through manufacturing on the 2D level. Therefore, it is not necessary to use traditional processing machine tools, and compared with traditional subtractive manufacturing, workpieces with more complex shapes can be manufactured. There are many ways to realize 3D printing, such as extrusion accumulation molding, laser light curing molding, thin plate lamination molding, etc. For the 3D printing technology of extrusion accumulation molding, the nozzle is the key component to realize the accumulation. It cooperates with the motion system to realiz...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a 3D printing device suitable for multi-material workpieces, in which combined with the 3D printing technology and the characteristics of the multi-material workpiece itself, a corresponding design suitable for preparing multi-material complex three-dimensional Structured 3D printing equipment, and the research and design of its key components such as the structure of the rotary nozzle switching device and the segmented screw nozzle device and their specific setting methods, can effectively solve the problem of small selection of processing materials and high production costs. At the same time, it also has the advantages of fast extrusion speed and high work efficiency, and can effectively reduce the hysteresis and salivation of materials, so it is especially suitable for free forming of multi-material workpieces with complex three-dimensional structures.

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