Printer ink supply system provided with inflating piezoelectric pump

Abstract

The invention relates to a printer ink supply system provided with an inflating piezoelectric pump. The system includes an ink box, a first connection pipe, a second connection pipe, a spray head and a piezoelectric pump. The piezoelectric pump includes a pump body, an ink inlet hole valve block, an ink outlet hole valve block, a piezoelectric vibrator, a top cover and a bottom cover. The ink box is connected to an ink inlet port of the piezoelectric pump through the first connection pipe. An ink outlet port of the piezoelectric pump is connected to the spray nozzle through the second connection pipe. When the piezoelectric vibrator transforms in the downward direction, the ink inlet hole valve block opens while the ink outlet hole valve block closes. When the piezoelectric vibrator moves upwards, the ink inlet hole valve block closes while the ink outlet hole valve block opens, so that ink in a first cavity flows through a third cavity and is stored in a second cavity; ink in the second cavity is inflated and flows to the spray nozzle from an outlet. Therefore, stable and continuous ink output of the spray nozzle is ensured. According to the invention, requirements for the position of the ink box relative to a printer are low; installation and maintenance are convenient and ink output quality is improved distinctively.

Description

technical field [0001] The invention belongs to the field of inkjet printers and specifically designs an ink supply system for a printer with a pressurized piezoelectric pump. Background technique [0002] The ink supply system of inkjet printers has used the back pressure of the ink cartridge itself to directly act on the printer nozzle in the early days, and now generally uses the "ink continuous supply system", that is, the external ink bottle is connected to the printer ink cartridge through a conduit, and the ink is released by using the siphon principle. Continuous flow to the cartridges. This "continuous ink supply system" not only saves ink, but also facilitates ink addition. However, the liquid level of the outer ink bottle of this "continuous ink supply system" is generally controlled to be lower than the nozzle part, and must be lower than the top of the inner ink tank, so that it is not easy for the nozzle to lack ink or overflow ink. The liquid level of the ex...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the current inkjet printer ink supply system, the continuous output of nozzle ink is unstable, the position of the outer ink bottle relative to the printer is high, and the installation and maintenance of the entire ink supply system is inconvenient.

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