A kind of 3D printer with multi-nozzle and printing method thereof

Abstract

A 3D printer with multiple nozzles and a printing method thereof, the 3D printer with multiple nozzles includes a finished product parameter preset module, a scraper parameter preset module, a scraper printing layer number setting module, and a nozzle parameter assignment module. The 3D printer with multiple nozzles and the printing method use each functional module to set the printing parameters or printing codes of the nozzles, so that any nozzle prints the scraper when the finished product is not printed, and the scraper It is a plurality of concentrically sleeved rings, which can protect the nozzle from the inside to the outside or from the outside to the inside to achieve more effective cleaning of the nozzle. At the same time, due to the printing of the scraper, the hot melt material on the nozzle head is used up. , so that the nozzle head can have sufficient material, when the finished product is printed again, the generation of gaps can be avoided, and the defective rate of the finished product can be reduced. The invention also relates to a printing method of a 3D printer with multiple nozzles.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a 3D printer with multiple nozzles and a printing method thereof. Background technique [0002] With the development of printer technology, 3D printers capable of printing three-dimensional objects are gradually emerging. Traditional inkjet printers spray ink onto paper and other carriers to display a two-dimensional image. 3D printers do not rely on ink to display, but rely on real raw materials such as plastics and metals. Generally, 3D printers heat and soften raw materials and spray them to specific areas through nozzles. Then, after receiving a series of digital slices made by a computer, the 3D printer stacks successive thin layers until a three-dimensional solid object is formed. It can be seen that 3D printers can directly print shaped products, thus providing a new manufacturing method. [0003] At present, the FDM (Fused Deposition Modeling) process is a layered...

AI Technical Summary

Problems solved by technology

First of all, it brings the problem of nozzle cleaning. When one nozzle is working, the material flowing out of other non-working nozzles will stick to the current model, which will interfere with the printing of the current nozzle. In addition, there will be a problem of missing material in the nozzle, due to the flow of the material. As a result, there is not enough material in the nozzle. When the nozzle starts to work, the material is not extruded sufficiently within a certain range of printing, resulting in gaps in the printed model

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