A kind of circulating ink supply control method

Abstract

The invention discloses a circulation ink volume providing control method. The circulation ink volume providing control method comprises the following steps that an ink liquid level sensor is installed inside an ink supply box and is connected with an external control device through wireless, an inlet of the ink supply box is connected with an ink storage box through one guide pipe to form an inkinjecting passage, an outlet of the ink supply box is connected with an ink return box through one guide pipe to form an ink discharging passage, and the outlet of the ink discharging passage communicates with the ink supply box to form a closed ink path circulation, after a printing head works, because the pressure intensity inside the ink supply box is larger than the external air pressure intensity, there will be ink flowing out of a nozzle, the liquid level in the ink supply box is changed, the ink liquid level sensor transmits detected liquid level signals to the control device, and the control device controls an ink injecting system and an ink discharging system to start to adjust the ink liquid level in the ink supply box. By means of the circulation ink volume providing control method, the ink of the ink supply box can be rapidly and effectively increased and decreased, the ink flows inside the ink supply box in a circulating manner to make the ink supply box have the ink all the time, the ink pressure is stable, and the ink volume is sufficient.

Description

technical field [0001] The invention relates to the technical field of ink supply, in particular to a method for controlling supply of circulating ink. Background technique [0002] In recent years, with the rapid development of digital inkjet printing technology, print head technology has also been greatly improved, and a large number of industrial-grade digital inkjet print heads have emerged. Inkjet printing is a "non-contact with objects" "Inkjet printing high-tech digital printing equipment, so it can not be limited by any material, can be on wood, glass, crystal, metal plate, floor tiles, tiles, CDs, acrylic, plexiglass, EVA.KT board , leather, silicone, plastic, cloth, stone and other surfaces for color photo-level printing. [0003] Most of the traditional print heads are open-type positive pressure ink supply, and the siphon method or differential pressure method is often used to achieve ink pressure. These ink supply methods can be used on small inkjet printers, ...

AI Technical Summary

Problems solved by technology

These ink supply methods can be used on small inkjet printers, but they cannot be used on large industrial-grade high-speed digital inkjet printers. Many problems such as insufficient ink supply, unstable ink pressure, and ink bleeding of the print head will occur.