A multi-nozzle combined electrojet print head with multi-electrode ring electric field control function

Abstract

The invention belongs to the related field of electric fluid dynamic jet printing equipment, and discloses a multi-nozzle combined electric jet printing nozzle with the function of controlling an electric field through multiple electrode rings. The nozzle comprises an overall framework, nozzle modules and multi-layer deformable electrode ring modules; the plurality of independent nozzle modules are arranged on the overall framework, liquid drops of different kinds of ink liquid can be sprayed out at the same time through the inclined arrangement of the nozzle modules, fall at the same target position on a base board, and are subjected to co-point fusion, and meanwhile multiple parameters can be adjusted according to requirements; and the multi-layer deformable electrode ring modules carryout finer adjustment on electric field distribution between nozzles and the electrode rings, and thus the precision of liquid drop falling position on the base board is further improved. According tothe nozzle, while the multi-nozzle electric fluid dynamic combined jet printing is realized, the falling position of the liquid drops sprayed out of the different nozzle modules can be accurately controlled, and the co-point fusion of the different kinds of ink liquid on the base board can be better realized; and the nozzle has the advantages of being compact in structure, high in controllability,high in liquid drop falling position precision and the like.

Description

technical field [0001] The invention belongs to the related field of electrohydrodynamic jet printing equipment, and more specifically relates to a multi-nozzle combined electrojet printing nozzle with a multi-electrode ring electric field control function. Background technique [0002] Among the current mainstream inkjet printing manufacturing processes, electrohydrodynamic inkjet printing uses electric fields instead of thermal bubbles, piezoelectric crystals and electrostatic diaphragms, and directly uses electric field force to "pull out" the ink, forming Jets and droplets have the characteristics of high resolution accuracy and strong material adaptability, and have obvious advantages over other printing manufacturing methods. At present, with the continuous development of electrohydrodynamic jet printing technology, it has been more and more used in the preparation of flexible display screens, bioengineering protein synthesis and other fields. [0003] As one of the c...

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Problems solved by technology

[0004] However, further studies have shown that the following defects or deficiencies still exist in the various existing technologies: On the one hand, they usually use multiple nozzles arranged independently of each other, and the ink is successively printed on the same position of the substrate through different nozzles. Common-point fusion, while there is a deposition position error in the printing process, it cannot meet the problem of simultaneous deposition of different inks on the substrate to achieve common-point fusion; on the other hand, when different nozzles move to the same position, due to the mechanical error of the nozzle installation And other reasons, it is easy to lead to changes in process conditions such as changes in the distance from the nozzle to the substrate, thereby affecting the final printing effect

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