A 3D printing device suitable for multi-material workpieces

Abstract

The invention discloses a 3D printing equipment suitable for multi-material workpieces, which includes a three-dimensional motion structure, a workbench, a rotary nozzle switching device, a feeding system and a control system, and the three-dimensional motion structure includes an X axis, a Y axis and a Z axis Movement structure; the workbench is fixedly connected with the X-axis movement structure, which moves horizontally under the drive of the X-axis movement structure and the Y-axis movement structure, and moves up and down under the drive of the Z-axis movement structure; the rotary nozzle switching device includes a turntable and the motor; there are multiple segmented screw nozzle devices installed on the circumference of the turntable, which can be rotated and switched under the drive of the motor; the feeding system is used to provide slurry for the segmented screw nozzle device; the control system is used to control the three-dimensional movement Movement of structure and turntable and extrusion of slurry in a segmented screw nozzle unit. The invention expands the selection range of processing materials, has the advantages of high work efficiency and low production cost, and can effectively reduce the hysteresis and salivation of materials.

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...

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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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