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Ink supply system

An ink supply and ink cartridge technology, applied in printing and other directions, can solve the problems of poor reliability and high complexity of the ink supply system

Active Publication Date: 2019-01-01
NEW FOUNDER HLDG DEV LLC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above existing problems, the present invention provides an ink supply system, which is used to overcome the defects of poor reliability and high complexity of the ink supply system easily caused by a large number of negative pressure air paths

Method used

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Embodiment Construction

[0015] figure 1 It is a schematic structural diagram of Embodiment 1 of the ink supply system provided by the present invention, and the direction of the arrow in the figure indicates the direction of ink flow. Such as figure 1 As shown, the ink supply system includes:

[0016] Main ink tank 11 , ink inlet pump 12 , secondary ink box 13 , first ink return valve 14 , at least one nozzle 15 , ink supply valve 16 corresponding to each nozzle, and controller 17 .

[0017] The ink outlet of main ink barrel 11 is connected with the ink inlet of ink inlet pump 12, and the ink outlet of ink inlet pump 12 is connected with the ink inlet of secondary ink box 13, and the first ink outlet a of secondary ink box 13 passes through The first ink return valve 14 is connected to the main ink barrel 11 , and each second ink outlet b of the secondary ink box 13 is connected to each nozzle 15 through an ink supply valve 16 corresponding to each nozzle 15 .

[0018] It is worth noting that, in ...

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Abstract

The invention provides an ink supplying system which includes a main ink cartridge, ink inlet pumps, a secondary ink box, a first ink return valve, nozzles, ink supplying valves which correspond to respective nozzles and a controller. The secondary ink box is provided with a first pressure detection apparatus therein. Respective nozzles are provided with corresponding second pressure detection apparatuses. The controller controls the powers of the ink inlet pumps on the basis of pressures detected by the first pressure detection apparatus and stable pressures required by respective nozzles so as to enable the secondary ink box to separately generate constant ink supply pressures corresponding to respective stable pressures. The controller opens a corresponding ink supplying valve when the pressure detected by one of the second pressure detection apparatuses does not amount to the stable pressure as required by the corresponding nozzle, and closes the corresponding ink supplying valve when the pressure detected by the second pressure detection apparatus amounts to the stable pressure as required by the corresponding nozzle. The ink supplying system does not need to configure corresponding gas path control for each nozzle by conducting pressure detection and constant pressure control of the secondary ink box. The ink supply system is easy, simple and reliable to implement.

Description

technical field [0001] The invention belongs to the technical field of digital printing, and in particular relates to an ink supply system. Background technique [0002] As a relatively mature ink supply technology for inkjet printheads, the gravity ink supply method has brought great help and reform to the stability of the printhead printing technology. At the same time, the role of the control method that matches the ink supply technology is becoming increasingly important. [0003] At present, a commonly used ink supply control method is to generate a negative pressure environment based on the negative pressure generating device of the air path corresponding to each nozzle, so as to ensure that the ink flows through the corresponding nozzle, and at the same time ensure that the nozzle required Ink flow rate and pressure. [0004] In the above-mentioned ink supply system, because a large amount of gas pressure is used for ink supply control, there are a large number of a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/175
CPCB41J2/175
Inventor 孙净亮雷伟陈峰刘志红
Owner NEW FOUNDER HLDG DEV LLC
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