A nozzle for high temperature electrospray printing

Abstract

The invention belongs to the technical field of advanced manufacture and provides a spray head for high temperature electric jet printing. The spray head comprises a spray needle module and a coolingmodule, the spray needle module is located inside the cooling module, the steady flow of ink is guaranteed, an installation seat in the spray needle module is an assembly base seat for the rest of parts, a connection column is located inside the installation seat, fastening nuts are used for allowing an ink inlet pipe or a spray needle to pass through, one end of the ink inlet pipe is connected with an ink conveying device, the other end of the ink inlet pipe runs through the upper-end fastening nut and is installed on the upper portion of the installation seat through the fastening nut, and the spray needle is installed on the lower portion of the installation seat; and the cooling module is arranged outside the spray needle module in a wrapping manner and is a cooling fluid circulation system, and the cooling module is used for cooling the spray head in the process of printing and reducing the temperature of the ink at a spray hole to avoid the ink from being solidified to block thespray hole, and the process of printing is made to be stable and controllable. The spray head for the high temperature electric jet printing is simple in structure and convenient to maintain, and by means of the spray head for the high temperature electric jet printing, the blockage phenomenon of the spray head can be greatly reduced, the process of the high temperature electric jet printing is made to be stable and controllable, and a high-precision micro-nano structure can be printed out.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing technology and relates to a high-temperature electro-spray printing nozzle. Background technique [0002] Printing manufacturing uses the effect of local energy field to directly form structures and devices on the substrate. It has outstanding potential and advantages in the manufacture of complex micro-nano structures, high aspect ratio micro-nano structures, and three-dimensional micro-nano structures. In recent years, the electrojet printing technology based on the electrohydrodynamic effect has become a hotspot in the printing and manufacturing of high-resolution micro-nano structures. In the electrojet printing process, under the joint action of electric field force, mechanical force, liquid surface tension, gravity, etc., the ink forms a stable cone jet at the outlet of the nozzle. Nano-structure. [0003] High-Resolution Printing of 3DStructures Using an Electrohydrodynamic Inkjet wi...

AI Technical Summary

Problems solved by technology

However, for the electrojet printing technology, the distance between the nozzle and the printing substrate is very small, and the nozzle and the substrate are heated almost at the same time, so that the ink at the nozzle hole is also cured, and the nozzle is easily blocked, resulting in unstable or even interrupted printing.

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