Printer ink supply system with circulating piezoelectric pump

Abstract

The invention relates to a printer ink supply system with a circulating piezoelectric pump. The printer ink supply system comprises an ink cartridge, a nozzle, a first connecting pipe, a second connecting pipe, a third connecting pipe and the circulating piezoelectric pump, wherein the ink cartridge is connected to the nozzle through the first connecting pipe, the ink cartridge is connected to the ink inlet of the piezoelectric pump through the second connecting pipe, and the ink outlet of the piezoelectric pump is connected to the ink cartridge through the third connecting pipe. A piezoelectric vibrator is energized to form vertical reciprocating deformation, when the piezoelectric vibrator moves downwardly, the volume of an accommodating cavity increases, pressure intensity reduces, and ink in the ink cartridge enters the accommodating cavity; when the piezoelectric vibrator moves upwardly, the volume of the accommodating cavity increases, pressure intensity increases, the ink in the accommodating cavity flows back to the ink cartridge, and ink circulation in the ink cartridge and the piezoelectric pump is achieved. The printer ink supply system has the advantages that ink dye precipitation and sedimentation are prevented, nozzle scaling and blocking are prevented, nozzle service life is prolonged, the ink can be evenly mixed, and ink flowability is enhanced.

Description

technical field [0001] The invention belongs to the field of inkjet printing, and in particular relates to a printer ink supply system with a circulating piezoelectric pump. Background technique [0002] Inkjet printing is a non-contact digital printing technology with the advantages of high speed, high quality and low noise. The inkjet printing system mainly includes ink cartridges, nozzles and ink. At present, the commonly used inks on the market mainly include: water-based inks with water as the main medium, solvent inks and solid inks with organic solvents as the main medium, among which water-based inks are the most widely used. Water-based ink is generally composed of water, organic solvents, colorants, binders and some necessary additives. Some of the failure forms that often occur in water-based printing inks are: dye precipitation and precipitation, the substance in the dye reacts with air to change the pH value and deteriorate, and bacteria and mold are bred to ca...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the current problems of ink dye precipitation and precipitation, nozzle fouling and clogging, nozzle material damage and poor ink fluidity, a printer ink supply system with a circulating piezoelectric pump is proposed. A connecting pipe, a second connecting pipe, a third connecting pipe and a circulating piezoelectric pump, the ink cartridge is connected to the nozzle through the first connecting pipe, and the ink cartridge is connected to the ink inlet of the piezoelectric pump through the second connecting pipe , the ink outlet of the piezoelectric pump is connected to the ink cartridge through the third connecting tube

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