Ink box, valve assembly and valve core of the ink-jet printer

Abstract

The invention relates to an ink box of ink-jet printer, a valve module and a valve core. The valve core comprises valve bar and valve piece. The valve piece is made of elastic material and is horn shape. The cooperation of valve bar and corresponding valve seat provides the location of valve core on the valve seat. One end of valve bar is fixed with the end of valve piece hermetically where the radial dimension of valve piece is the smallest and the other end is faced to the shrinkage direction of horn port of valve piece. The end of valve piece where the redial dimension of valve piece is biggest is located at the outer side of fixing end of valve bar on the axial direction of valve bar. There is a bending part extruding on the shrinking direction of horn of valve piece. The region between the smallest end and the biggest end extrude out on the axial direction of valve bar and the back is towards the shrinking direction of horn of valve piece. The corresponding extruding terminal end is located at the outer side of bending part where it is on the axial direction of valve bar and its back is towards the shrinking direction of horn of valve piece. At least a portion of the extruding terminal end is deformed along the axial direction of valve bar. The ink provision state is more stable in ink box and valve module with above mentioned valve core.

Description

technical field [0001] The present invention relates to an inkjet printer ink cartridge, a valve assembly and a valve core, especially an ink cartridge installed on an inkjet printer carriage to provide ink to a printing head or a recording head, and a valve assembly used in the ink cartridge, and applied to the inkjet printer Spool in cartridge or valve assembly. Background technique [0002] An inkjet type recording head is an essential constituent part of an inkjet printer. The recording head is set on a carriage of an inkjet printer. The ink cartridge of an inkjet printer is responsible for supplying ink to the recording head. Early ink cartridges utilized pressure-generating ink storage chamber members to provide pressure, for example, porous materials such as sponges were set in the ink storage chamber, and thus the capillary channels of the material provided the required negative pressure state for the ink storage chamber. One of the side walls of the ink storage c...

AI Technical Summary

Problems solved by technology

However, in the actual application process, it is found that the use effect of this umbrella valve body is not satisfactory

For example, the umbrella surface of the valve body may be reversely folded. In the case of large ink pressure fluctuations, the umbrella surface will be forced to turn back along the central axis of the umbrella surface, and the folded umbrella surface will appear or lose The function of the valve, or it is prone to breakage and damage, which affects the normal use of the ink cartridge; in the case where the structure of the ink cartridge and the umbrella valve body is fixed and cannot be disassembled, the damage to the valve body may directly lead to the scrapping of the entire ink cartridge; on the other hand, this umbrella The response of the shaped valve body to the ink pressure difference in the process of controlling the opening / closing of the ink channel is relatively rigid, causing the closing / closing action of the ink channel to lag behind the ink demand of the recording head, resulting in unstable ink supply, etc.

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