Three-dimensional printing machine fluid extrusion system and implement method thereof

Abstract

The invention discloses a three-dimensional printing machine fluid extrusion system and an implement method thereof and solves problems that an existing extrusion system is large in material conveying limiting, non-uniform in extruded materials, inconvenient to operate and the like. The three-dimensional printing machine fluid extrusion system comprises a feeding mechanism, an extrusion mechanism and a feeding controlling system which can be used for controlling the feeding mechanism and the extrusion mechanism; the output end of the feeding mechanism is connected with the input end of the extrusion mechanism by a conveying pipe and a three-way pipe; another end of the three-way pipe is connected with a pressure transmitter; the pressure transmitter is connected with the feeding controlling system by a signal line; the feeding controlling system is connected with a power supply and is connected with a three-dimensional printing machine controlling plate or an external driving circuit of an extrusion machine by a material shortening signal line. The three-dimensional printing machine fluid extrusion system can be used for continuous feeding without halting, and achieving high-speed printing and precise flow control, can be suitable for viscous fluid materials such as concrete and ceramic clay, and can be suitable for being used for batch printing of middle-small objects and printing of large objects such as concrete buildings and landscape sculptures.

Description

Technical field [0001] The invention involves a fluid material extrusion device based on a three -dimensional printer. Specifically, it is a three -dimensional printer fluid extrusion system and its implementation method that can be continuously added. Background technique [0002] Three -dimensional printing, also known as 3D printing, is a technology based on digital model files, using powder -shaped metal or line -type plastics and other adhesive materials to construct objects to construct objects by layer by layer.The three -dimensional printing technology is different in technical principles according to different molding materials. The more common ones include melting deposition (FDM), selective laser sintering (SLS), laser three -dimensional printing (SLA), digital light (DLP), powder bonding(3DP) and so on. [0003] The three -dimensional printing technology of fluid materials is a new three -dimensional printing technology developed on the basis of FDM (melting depositio...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the hopper and the material follow the movement of the entire extrusion mechanism, the load of the motion system is large, and the printing speed is slow; the operability of feeding the material during the movement of the hopper is poor; the material entering the screw barrel is only brought in by fluid gravity and screw rotation. Without external pressure, it is difficult to compact materials with poor fluidity, and when a screw with a compression section is used, it is difficult to measure accurately, resulting in uncontrollable molding accuracy

The defects of the above-mentioned prior art are not conducive to the large-scale molding volume, simplified operation, and precise measurement of fluid materials, which limit the scope of application of the extrusion device, and further affect the use of three-dimensional printers in concrete, ceramic clay, chocolate, Application of viscous fluid such as flour slurry as molding material

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