3D object ink-jet printing method and system

Abstract

The invention provides a 3D object ink-jet printing method. The method includes the following steps that a, pixel points are printed one by one in the mode of spraying out ink droplets based on layer printing data of a target object to form a layer printing effect, the standard volume of the ink droplets sprayed out of a printing head is V0, the total volume of the ink droplets required by printing the single pixel points is V, the number of sorts of required forming materials is S, the volume factor F of the pixel points is equal to V / V0, and F is larger than or equal to S; and b, the step a is repeated to form a plurality of layer printing effects, and the multiple layer printing effects are overlaid to form the 3D object. The invention further provides a 3D object ink-jet printing system. The 3D object ink-jet printing system comprises a processing terminal, a driving controller which is provided with a driving voltage generating unit and a driving voltage applying unit and the printer head and is used for executing the printing method. By means of the 3D object ink-jet printing method and system, the printing head cost is reduced, the blocking danger of a printing head nozzle is lowered, the forming speed of the 3D object is increased, manufacturing cost of a printer is reduced, and miniaturization of the printer can be better achieved.

Description

technical field [0001] The invention relates to the field of rapid prototyping technology, in particular to the technology of layer-by-layer additive manufacturing of 3D objects by using an inkjet printing head, in particular to an inkjet printing method and system for a 3D object. Background technique [0002] Rapid prototyping technology, also known as rapid prototyping technology or additive manufacturing technology, is based on the basic principles of 3D model slices, which are processed and piled up layer by layer to make 3D objects. [0003] At present, the use of rapid prototyping technology to produce 3D objects specifically includes fused deposition technology (abbreviation: FDM technology), stereolithography technology (abbreviation: SLA technology), selective laser sintering technology (abbreviation: SLS technology), laminated molding technology (abbreviation : LOM technology) or inkjet printing technology, etc. Among them, the use of inkjet printing technology t...

AI Technical Summary

Problems solved by technology

[0006] Those skilled in the art understand that if the number of ink droplets printed by each pixel is more than 3 drops, it is necessary to increase the corresponding printing channel, thereby increasing the cost of the printing head. The higher the viscosity, the nozzles of the print head are easy to clog. The more the number of printing channels, the higher the risk of nozzle clogging. At the same time, the position occupied by the print head on the trolley will also increase, so that the print head can be accelerated from a static state within the same time. After reaching the target speed, the acceleration distance to enter the working area at a constant speed will increase, so the volume of the printer will increase. On the one hand, the manufacturing cost of the printer will be increased. On the other hand, the increased footprint of the printer will affect the appearance and be inconvenient to carry.

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