Inkjet print head unit

Abstract

The invention provides an ink jet printing head device which comprises an electromagnetic valve base and a datum plate, wherein the electromagnetic valve base is fixedly arranged on a spray nozzle shell; an ink supply channel is arranged inside the electromagnetic valve base; an ink supply electromagnetic valve is arranged on the electromagnetic valve base; the ink supply electromagnetic valve communicates with the ink supply channel; the datum plate is fixedly arranged on the spray nozzle shell and is positioned at the back of the electromagnetic valve base; an adjustable nozzle body is arranged on the datum plate; the nozzle body communicates with the ink supply electromagnetic valve; a charging electrode is correspondingly arranged at the back of the nozzle body; an ink droplet deflection mechanism is arranged at the back of the charging electrode; a recoverer corresponding to the nozzle body is arranged at the back of the ink droplet deflection mechanism; and the charging electrode, the ink droplet deflection mechanism and the recoverer are fixed to the datum plate. The ink jet printing head device has the advantages that a nozzle is convenient to adjust, the recoverer deformation is avoided, ink is prevented spilling from the spray nozzle shell, ink is conveniently heated, and the like, and is easy to mount, convenient to use, stable and reliable in operation and long in service life.

Description

technical field [0001] The invention relates to the technical field of inkjet printing, in particular to an inkjet printing head device. Background technique [0002] At present, the inkjet printer is a device that is controlled by software and uses a non-contact method to mark on the product. According to the working principle, it can be divided into continuous inkjet technology (CIJ, continue ink jet printer) and on-demand inkjet technology ( DOD, drop on demand), etc., the inkjet principle is to control the deflection of ink droplets through the ink drop deflection device, so that the ink droplets are hit on different positions on the product surface to form the required various characters, patterns and other marks. [0003] Specifically, under the control of the software, by controlling the internal gear pump or supplying compressed air from the outside of the machine, a certain pressure is applied to the ink in the inkjet printer system, so that the ink is ejected throu...

AI Technical Summary

Problems solved by technology

[0004] However, it is inconvenient to adjust the nozzle of the existing inkjet printer device, and the ink line is easy to deviate during use, causing inconvenience in its use, and the charging electrode in the prior art is generally a sheet metal part, which passes through a small Screws are fixed on the nozzle body, the installation method is complicated and inconvenient, and it is easy to deform during maintenance. The recoverer is installed on the recoverer seat and is located at the bottom of the printing system. The installation is unstable and easy to bump and deform. At the same time, there is a solenoid valve The bottom of the plate is prone to ink overflow, the ink is difficult to heat in low temperature environment, and the design of the ink tube is complicated, etc.

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