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Inkjet head and driving method thereof, and ink-jet device

A technology of nozzles and nozzles, applied in printing devices, printing, etc., can solve the problems of small ink drop volume, uneven nozzle and ink dripping, etc., and achieve the effect of reducing nozzle clogging

Active Publication Date: 2018-01-16
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, due to the narrow diameter of the nozzle tube of the nozzle and the small volume of the ink drop, the ink drop has a high surface energy characteristic, which causes the ink to block the nozzle and the ink to drip unevenly from the nozzle.

Method used

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  • Inkjet head and driving method thereof, and ink-jet device
  • Inkjet head and driving method thereof, and ink-jet device
  • Inkjet head and driving method thereof, and ink-jet device

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Embodiment Construction

[0035] In order for those skilled in the art to better understand the technical solution of the present invention, the printhead, its driving method, and inkjet device provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0036] figure 1 It is a schematic structural diagram of a nozzle provided in Embodiment 1 of the present invention, figure 2 for figure 1 Schematic diagram of the structure of the nozzle tube in, such as figure 1 and figure 2 As shown, the spray head includes a pressure chamber 1 and a nozzle pipe 2, the nozzle pipe 2 includes a conductive layer 21, a piezoelectric material layer 22 and a nozzle 23, the piezoelectric material layer 22 is located between the conductive layer 21 and the nozzle 23, the nozzle 23 is connected to the pressure Room 1 is connected.

[0037] Wherein, the pressure chamber 1 is loaded with the first voltage, so that the ink in the pressure chamber 1 is loaded with the f...

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PUM

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Abstract

The present invention provides an inkjet head and a driving method thereof, and an ink-jet device. The inkjet head comprises a conductive layer, a piezoelectric material layer and an inkjet nozzle. The piezoelectric material layer is located between the conductive layer and the inkjet nozzle, and the inkjet nozzle is communicated with a pressure chamber; a first voltage is located in the pressurechamber to allow ink in the pressure chamber to be loaded with the first voltage; and a second voltage is loaded on the conductive layer to form a voltage difference between ink flowing through the inkjet nozzle and the conductive layer, and the piezoelectric material layer is deformed under the action of the voltage difference. The inkjet head and the driving method thereof, and the ink-jet device reduce a phenomenon of an inkjet nozzle being obstructed by ink and can allow ink to be uniformly dropped out from the inkjet nozzle.

Description

technical field [0001] The invention relates to the technical field of inkjet printing, in particular to a nozzle, a driving method thereof, and an inkjet device. Background technique [0002] In the field of inkjet printing (Ink Jet Print, referred to as IJP) technology, widely used mass production equipment usually uses piezoelectric element inkjet (Drop on Demand, referred to as DOD) technology for inkjet printing, and the piezoelectric element Inkjet technology is widely used in printing industry, biotechnology and electronic parts processing industry. Among them, the IJP process has the advantages of rapidity and low cost. [0003] However, in the prior art, due to the narrow diameter of the nozzle tube of the shower head and the tiny volume of the ink droplet, the ink droplet has a high surface energy characteristic, thereby causing the ink to block the nozzle and the ink to drop unevenly from the nozzle. Contents of the invention [0004] The invention provides a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/14B41J29/38
Inventor 陈右儒
Owner BOE TECH GRP CO LTD
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