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Array electrofluid jet printing control method and device for inhibiting jet flow inclination

A control method and electro-fluid technology, applied in printing and other directions, can solve the problems of lack of mature control strategy and control system, prone to jet tilt, etc., and achieve the effect of reducing jet tilt phenomenon, suppressing jet tilt and reducing influence.

Active Publication Date: 2021-10-08
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides an arrayed electrofluid jet printing control method and device for suppressing the inclination of the jet. The phenomenon of jet tilting, and the lack of mature control strategies and control systems

Method used

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  • Array electrofluid jet printing control method and device for inhibiting jet flow inclination
  • Array electrofluid jet printing control method and device for inhibiting jet flow inclination
  • Array electrofluid jet printing control method and device for inhibiting jet flow inclination

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specific Embodiment

[0041] The arrayed electrofluid jet printing device includes an arrayed nozzle, a high-voltage source, a high-voltage switch array, a drive module, a digital main control module, and a host computer, such as figure 2 shown, where:

[0042] The arrayed nozzle adopts a protruding microneedle structure, including 8 nozzles with independent lead-out electrodes, with a spacing of 1mm. The power supply method is directly powered by the liquid, and the turn-on voltage is about 1800V.

[0043] The high-voltage source is divided into two parts: the working signal source and the control signal source. The working signal source is a combination of a signal generator and a high-voltage amplifier, and the control signal source is a high-voltage DC source.

[0044] The high-voltage switch array is composed of 8 groups of high-voltage dry reed relays connected in parallel, which correspond to 8 nozzles one by one, and each group contains two high-voltage switches, in which the output end of...

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Abstract

The invention belongs to the technical field of ink-jet printing, and particularly discloses an array electrofluid jet printing control method and device for restraining jet flow inclination. The array electrofluid jet printing control method for inhibiting jet flow inclination comprises the following steps that a working voltage is applied to an ignition nozzle to enable the ignition nozzle to perform jet, and a regulation and control voltage is applied to a non-ignition nozzle adjacent to the ignition nozzle to enable the non-ignition nozzle not to inject; and the electric field at the injection position of the ignition nozzle can be adjusted, so that jet flow inclination is restrained. According to the array electrofluid jet printing control method and device for inhibiting jet flow inclination, the requirement for independent jet control of an existing array electrofluid jet printing nozzle can be met, and the jet flow inclination phenomenon during jet is effectively reduced through a high-low voltage electric field regulation and control method, a nozzle three-state switching method and an interval ignition time sequence control method; meanwhile, a foundation is laid for automatic control and patterning printing of array electrofluid jet printing nozzles, and the array electrofluid jet printing device for inhibiting jet flow inclination has the advantages of being simple in structure, high in synchronism, high in reliability, convenient to expand and the like.

Description

technical field [0001] The invention belongs to the technical field of inkjet printing, and more particularly relates to an arrayed electrofluid jet printing control method and device for suppressing jet inclination. Background technique [0002] As a non-contact, template-free additive manufacturing process, inkjet printing technology has good manufacturing flexibility and is one of the mainstream methods for printing electronic products. In the field of intelligent products based on printed electronics such as thin film sensors , flexible displays and smart labels have been widely used. Traditional inkjet printing uses a "push" method to extrude and deposit the solution from the nozzle hole to the substrate to form a pattern. Generally, the suitable viscosity is 5-20mPa·s, and the diameter of the sprayed droplet is larger than the nozzle hole, generally 30-100μm. Electrofluid printing uses electric field force to "pull" the solution from the meniscus to the substrate to f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/095
CPCB41J2/095
Inventor 段永青黄永安魏莱邵志龙肖晶晶
Owner HUAZHONG UNIV OF SCI & TECH
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