Ink storage module capable of controlling ink input and ink-jet printing system

Abstract

The invention relates to an ink storing module and an inkjet printing system which can control input ink quantity. The ink storing module is communicated with an ink tank and a pumping device. The ink storing module comprises an ink inlet control device. The ink inlet control device comprises: an ink storing chamber which is provided with an ink inlet port that is communicated with the ink tank and is used for receiving and storing ink that is delivered from the ink tank via the ink inlet port; a pressure control mechanism which is connected with the ink storing chamber and is used for controlling the communication of the ink storing chamber with external pressure; an air chamber which is arranged on one side of the ink inlet control device and is communicated with the ink storing chamberof the ink inlet control device. The air chamber is sued for outputting air. When the pressure control mechanism controls the ink storing chamber to be disconnected with the external pressure, the pumping device drives the ink to be transported to the ink storing chamber from the ink tank via the ink inlet port. The manufacturing complexity is lowered greatly and the ink leakage problem is avoided.

Description

technical field [0001] The invention belongs to the technical field of printing accessories and printing devices, and in particular relates to an ink storage module and its related inkjet printing system, especially to an ink storage module and an inkjet printing system capable of controlling the amount of ink. Background technique [0002] The conversion ink-absorbing device of the inkjet printing equipment currently on the market is usually in the form of head and ink separation, that is, the inkjet head and the ink tank are set separately, and the ink delivery tube is used to connect the ink tank and the ink storage chamber above the inkjet head to carry out ink. The conversion of the ink-absorbing device uses a pump to suck the ink in the ink tank into the ink storage chamber through the ink delivery tube. [0003] The above methods of ink transmission are mainly divided into two types. One is to set up a linkage mechanism between guide pins and cams at the connection be...

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Problems solved by technology

[0003] The above methods of ink transmission are mainly divided into two types. One is to set up a linkage mechanism between guide pins and cams at the connection between the ink storage space and the pump that store ink of different colors inside the ink storage chamber. Linkage is used to control the communication between each ink storage space and the pump, so as to achieve the function of independent ink supply for individual colors. However, this method will lead to a rather precise design of the overall linkage mechanism, that is, the relationship between the guide pin and the cam. The tolerance requirements must be very precise, otherwise there will be problems of ink leakage caused by improper coordination. In addition, the design of the overall linkage mechanism also requires a considerable number of components, which will also lead to an increase in manufacturing costs.

[0004] The other is to use the design that the volume of the ink storage chamber above the inkjet head is greater than the capacity of the ink tank, and the ink of all colors is transferred to the ink storage chamber at one time, so that there is no mechanism design problem for selecting single-color ink replenishment, but , as the volume of the ink storage chamber above the inkjet head increases, the volume of the seat used to carry the inkjet head will also increase, so that it will lose the meaning of designing the conversion ink absorbing device as a head ink separation form , which means that the weight and volume of the seat cannot be reduced

In addition, the inks of different colors stored in the ink storage chamber will be consumed in different degrees according to the demand for different colors during inkjet printing, but the inkjet printing equipment using this method can replenish the ink storage chamber The ink in the ink tank is replenished at one time by starting the pump to transfer the ink of different colors in the ink tank to the corresponding ink storage space of the ink storage chamber, instead of the individual colors mentioned in the above method Independent ink supply, in this way, there will often be ink overflow problems due to too much ink, for example, assuming that the red ink in the ink storage chamber has been filled but the blue ink has not yet been filled, use this method The inkjet printing equipment of the method will continue to perform the action of replenishing ink because the blue ink has not been filled. At this time, the ink storage space for storing the red ink in the ink storage chamber will overflow.

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