Multi-nozzle 3D printer and printing method

Abstract

The invention discloses a multi-nozzle 3D printer and a printing method. The multi-nozzle 3D printer comprises a lifting rotary tray, a printing nozzle assembly moving in the direction X and the direction Y and six printing nozzles synchronously stretching out and drawing back in the radial direction of a supporting arm. The printing nozzles and the tray relatively rotate, and the multi-nozzle 3D printer is especially suitable for printing a large. A ball screw drives the rotary tray to move vertically, and product stacking in the height direction is achieved. A fifth driving motor drives a large gear to rotate, six small gears are engaged with the large gear, the small gears do reciprocating motion through a synchronous belt and a sliding block in the radial direction, and all the printing nozzles can be driven to work synchronously; at most six products can be printed at the same time, so that the printing work efficiency of small products is greatly improved; or the six printing nozzles are used for printing a large product at the same time, the six printing nozzles work at the same time, therefore, the printing speed of a single product is increased, multiple purposes of the printer are achieved, and flexibility and convenience are achieved.

Description

technical field [0001] The invention relates to a multi-nozzle 3D printer and a printing method, belonging to the technical field of 3D printers. Background technique [0002] A 3D printer is a device that accumulates metal, plastic and other materials in space through mechanical structure design. The use of 3D printers can meet most of the three-dimensional printing needs, and its applications are very extensive, involving precision manufacturing, mold processing, medical, electronics, food and other industries. At present, 3D printers mainly adopt the "melting deposition molding" technology. The printing process is to melt plastic, metal and other meltable materials at high temperature in the nozzle, and then form thin layers by deposition, and stack them layer by layer to form products. The main problems of the existing "fused deposition molding" 3D printers on the market are: single and double nozzle printers are only suitable for printing small products, and the printi...

AI Technical Summary

Problems solved by technology

The main problems of the existing "fused deposition molding" 3D printers on the market are: single and double nozzle printers are only suitable for printing small products, and the printing time for large products is long and the processing speed is slow; followed by For products with different structures and sizes, it is necessary to match a suitable printer, which limits the universality of printer use

[0003] The multi-nozzle printers disclosed in the Chinese invention patents "A Multi-nozzle 3D Printer and Its Cooperative Printing Method" (201510706198.X) and "A Multi-nozzle 3D Printer" (201510556924.4) all have a single structure and insufficient functions Comprehensive, in terms of function, it only performs targeted operations on specific large-size products or multiple products, and it cannot print a single large-size product or multiple products with the same structure at the same time

[0004] To sum up, the existing 3D printers have shortcomings such as long printing time, lack of flexibility, and single function, which restrict the industrialization of 3D printing in the current market.

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