Flexible three-dimensional forming printing device based on screw extrusion

Abstract

The invention discloses a flexible three-dimensional forming printing device based on screw extrusion which comprises a pulse nozzle, a large material bin, a small material bin, wherein the large material bin is independently supported above the nozzle; the small material bin is integrated on the nozzle; the large material bin is connected to the small material bin below through a telescopic flexible conveying pipe; the lower portion of the small material bin is connected and fixed to an extrusion bin through a feeding pipe; a material limiting valve is arranged on the feeding pipe; a screw running vertically is arranged in the extrusion bin; a motor is arranged at the top of the extrusion bin; the motor is connected to the top of the screw and controls the screw to rotate about its own central axis; a heating module is arranged on the periphery of the extrusion bin; and the pulse nozzle is arranged at the bottom of the extrusion bin. The flexible three-dimensional forming printing device based on screw extrusion disclosed by the invention can effectively solve the problems of delay and blocking, is simple in structure, can improve efficiency and reduce the cost and runs stably.

Description

Technical field [0001] The invention relates to a flexible three-dimensional molding printing device based on screw extrusion. Background technique [0002] In recent years, 3D printing technology has developed rapidly. Existing 3D printers mainly use light curing molding (SLA), selective laser sintering (SLS), and fused deposition molding (FDM). At present, the most used 3D printing technology is FDM, which has been widely used due to its low cost, simple equipment and wide material adaptability. FDM generally uses thermoplastic polymer materials, such as ABS, PLA, etc., with wire as the main material. The wire is supplied to the hot melt nozzle by the wire feeding mechanism, and after melting, it is deposited in a specific position and then solidified. The FDM printer has the following problems: [0003] First, most of the existing FDM printers have a wire feeding structure, and there is a certain distance between the wire feeding mechanism and the nozzle, so that there is a l...

AI Technical Summary

Problems solved by technology

If it is equipped with extrusion wire drawing equipment, the cost can be reduced, but unnecessary processes are added, which greatly reduces the efficiency; if the traditional extruder is combined with the nozzle, the nozzle is too heavy and the movement is not good. Problems such as continuous feeding during the movement of the nozzle

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