Printing ink cartridge for continuous ink supply system

Abstract

The invention relates to a printing ink case of a continuous ink supply system, which comprises a case body, a cover body and an ink inputting pipe. A case room is formed in the case body, an ink supply runner is arranged at the bottom of the case room and provided with an inlet and a printing ink outlet which are mutually communicated; an opening is arranged on the cover body, a bubble isolation room and a communication pipe are formed under the opening, the bubble isolation room extends into the interior of the case room and closely joined with an inlet of the ink supply runner correspondingly to the ink supply runner to form an isolation chamber; a communication pipe is adjoined to one side of the bubble isolation room and provided with a communication opening causing the communication pipe to be mutually communicated with the bubble isolation room; and the ink inputting pipe is arranged at the other side of the bubble isolation room and extends into the case room. Owing to the isolation of the case room from the bubble isolation room, the stored ink can enter into a vacuum tight bubble isolation room by the syphonage of the communication pipe for the supply of the printing needs; at the same time, bubbles in the case room can be inhibited and can not enter into the bubble isolation room, thus leading the case body to achieve the best ink supply and printing quality when printing.

Description

technical field

[0001] The invention relates to a printing ink box, in particular to a printing ink box applied to a continuous ink supply system. Background technique

[0002] see figure 1 As shown, an ink storage tank 91 is formed in the existing ink box 90, and an ink outlet 92 is provided at the bottom of the ink box 90, and an ink inlet tube 93 is arranged at its top, and the ink inlet tube 93 stretches into At the upper position in the ink storage tank 91. After the external ink supply tube 80 and the ink inlet tube 93 are connected to each other, the ink can be replenished, and the ink is injected into the ink storage tank 91 through the ink supply tube 80 through the ink inlet tube 93 . However, during the ink refilling and filling process, when the ink enters the ink cartridge 90, air is often brought in or mixed with it, causing air bubbles to be generated in the ink stored in the cartridge chamber. Supply and output back pressure problems, while ink supply and ...

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